src/Compilers/VisualBasic/Portable/Generated/Syntax.xml.Syntax.Generated.vb - main - githubmirror/roslyn

src/Compilers/VisualBasic/Portable/Generated/Syntax.xml.Syntax.Generated.vb
38 053 строки2 MB
Sam Harwell
Add documentation remarks for syntax kinds (#43646)
16 сен 2020, 02:59
16 сен 2020, 02:595f0b751
' Definition of syntax model.
' DO NOT HAND EDIT

Imports System.Collections.Generic
Imports System.Collections.Immutable
Imports System.Runtime.CompilerServices
Imports Microsoft.CodeAnalysis.Syntax.InternalSyntax
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax
Imports Roslyn.Utilities

Namespace Microsoft.CodeAnalysis.VisualBasic.Syntax

    ''' <summary>
    ''' Represents one of the type characters or literal suffixes of VB. Used to
    ''' describe a) the type character suffixes that can be placed on identifiers, and
    ''' b) the suffixes that can be placed on integer literals.
    ''' </summary>
    Public Enum TypeCharacter

        None

        ''' <summary>
        ''' The "%" type character."
        ''' </summary>
        [Integer]

        ''' <summary>
        ''' The "&amp;" type character."
        ''' </summary>
        [Long]

        ''' <summary>
        ''' The "@" type character."
        ''' </summary>
        [Decimal]

        ''' <summary>
        ''' The "!" type character."
        ''' </summary>
        [Single]

        ''' <summary>
        ''' The "#" type character."
        ''' </summary>
        [Double]

        ''' <summary>
        ''' The "$" type character."
        ''' </summary>
        [String]

        ''' <summary>
        ''' The "S" literal suffix denoting "Short"
        ''' </summary>
        ShortLiteral

        ''' <summary>
        ''' The "US" literal suffix denoting "UShort"
        ''' </summary>
        UShortLiteral

        ''' <summary>
        ''' The "I" literal suffix denoting "Integer"
        ''' </summary>
        IntegerLiteral

        ''' <summary>
        ''' The "UI" literal suffix denoting "UInteger"
        ''' </summary>
        UIntegerLiteral

        ''' <summary>
        ''' The "L" literal suffix denoting "Long"
        ''' </summary>
        LongLiteral

        ''' <summary>
        ''' The "UL" literal suffix denoting "ULong"
        ''' </summary>
        ULongLiteral

        ''' <summary>
        ''' The "F" literal suffix denoting "Single"
        ''' </summary>
        SingleLiteral

        ''' <summary>
        ''' The "R" literal suffix denoting "Double"
        ''' </summary>
        DoubleLiteral

        ''' <summary>
        ''' The "D" literal suffix denoting "Decimal"
        ''' </summary>
        DecimalLiteral
    End Enum

    ''' <summary>
    ''' The four possible number bases that a literal can be written in.
    ''' </summary>
    Public Enum LiteralBase

        [Decimal]

        Hexadecimal

        Octal

        Binary
    End Enum



    ''' <summary>
    ''' The base class for all nodes that represent statements. This includes both
    ''' declaration statements, such as class declarations as well as executable
    ''' statements.
    ''' </summary>
    Public MustInherit Class StatementSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' The base class for all nodes that represent executable statements.
    ''' </summary>
    Public MustInherit Class ExecutableStatementSyntax
        Inherits StatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' The base class for all nodes that represent statements that declare options,
    ''' imports, members, etc.
    ''' </summary>
    Public MustInherit Class DeclarationStatementSyntax
        Inherits StatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' A class to represent an empty statement. This can occur when a colon is on a
    ''' line without anything else.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EmptyStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EmptyStatementSyntax
        Inherits StatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), empty As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EmptyStatementSyntax(kind, errors, annotations, empty), Nothing, 0)
        End Sub

        ''' <summary>
        ''' An empty token because all non terminals must have a token.
        ''' </summary>
        Public ReadOnly Property Empty As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EmptyStatementSyntax)._empty, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Empty property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithEmpty(empty as SyntaxToken) As EmptyStatementSyntax
            return Update(empty)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEmptyStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEmptyStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="empty">
        ''' The value for the Empty property.
        ''' </param>
        Public Function Update(empty As SyntaxToken) As EmptyStatementSyntax
            If empty <> Me.Empty Then
                Dim newNode = SyntaxFactory.EmptyStatement(empty)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an "End XXX" statement, where XXX is a single keyword.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EndIfStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndUsingStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndWithStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndSelectStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndStructureStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndEnumStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndInterfaceStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndClassStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndModuleStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndNamespaceStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndSubStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndFunctionStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndGetStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndSetStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndPropertyStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndOperatorStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndEventStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndAddHandlerStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndRemoveHandlerStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndRaiseEventStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndWhileStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndTryStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndSyncLockStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EndBlockStatementSyntax
        Inherits DeclarationStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), endKeyword As InternalSyntax.KeywordSyntax, blockKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax(kind, errors, annotations, endKeyword, blockKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "End" keyword
        ''' </summary>
        Public ReadOnly Property EndKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)._endKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndKeyword(endKeyword as SyntaxToken) As EndBlockStatementSyntax
            return Update(Me.Kind, endKeyword, Me.BlockKeyword)
        End Function

        ''' <summary>
        ''' The keyword that ends the block. Must be one of: "If", "Using", "With",
        ''' "Select", "Structure", "Enum", "Interface", "Class", "Module", "Namespace",
        ''' "Sub", "Function", "Get, "Set", "Property", "Operator", "Event", "AddHandler",
        ''' "RemoveHandler", "RaiseEvent", "While", "Try" or "SyncLock".
        ''' </summary>
        Public ReadOnly Property BlockKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)._blockKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the BlockKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithBlockKeyword(blockKeyword as SyntaxToken) As EndBlockStatementSyntax
            return Update(Me.Kind, Me.EndKeyword, blockKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEndBlockStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEndBlockStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="endKeyword">
        ''' The value for the EndKeyword property.
        ''' </param>
        ''' <param name="blockKeyword">
        ''' The value for the BlockKeyword property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, endKeyword As SyntaxToken, blockKeyword As SyntaxToken) As EndBlockStatementSyntax
            If kind <> Me.Kind OrElse endKeyword <> Me.EndKeyword OrElse blockKeyword <> Me.BlockKeyword Then
                Dim newNode = SyntaxFactory.EndBlockStatement(kind, endKeyword, blockKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an entire source file of VB code.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CompilationUnit"/></description></item>
    ''' </list>
    ''' </remarks>
    Partial Public NotInheritable Class CompilationUnitSyntax
        Inherits VisualBasicSyntaxNode

        Friend _options as SyntaxNode
        Friend _imports as SyntaxNode
        Friend _attributes as SyntaxNode
        Friend _members as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), options As SyntaxNode, [imports] As SyntaxNode, attributes As SyntaxNode, members As SyntaxNode, endOfFileToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CompilationUnitSyntax(kind, errors, annotations, if(options IsNot Nothing, options.Green, Nothing), if([imports] IsNot Nothing, [imports].Green, Nothing), if(attributes IsNot Nothing, attributes.Green, Nothing), if(members IsNot Nothing, members.Green, Nothing), endOfFileToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' Represents the list of Option statements at the beginning of a source file.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Options As SyntaxList(Of OptionStatementSyntax)
            Get
                Dim listNode = GetRedAtZero(_options)
                Return new SyntaxList(Of OptionStatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Options property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOptions(options as SyntaxList(Of OptionStatementSyntax)) As CompilationUnitSyntax
            return Update(options, Me.Imports, Me.Attributes, Me.Members, Me.EndOfFileToken)
        End Function

        Public Shadows Function AddOptions(ParamArray items As OptionStatementSyntax()) As CompilationUnitSyntax
            Return Me.WithOptions(Me.Options.AddRange(items))
        End Function

        ''' <summary>
        ''' Represents the list of Imports statements at the beginning of a source file.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property [Imports] As SyntaxList(Of ImportsStatementSyntax)
            Get
                Dim listNode = GetRed(_imports, 1)
                Return new SyntaxList(Of ImportsStatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the [Imports] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithImports([imports] as SyntaxList(Of ImportsStatementSyntax)) As CompilationUnitSyntax
            return Update(Me.Options, [imports], Me.Attributes, Me.Members, Me.EndOfFileToken)
        End Function

        Public Shadows Function AddImports(ParamArray items As ImportsStatementSyntax()) As CompilationUnitSyntax
            Return Me.WithImports(Me.Imports.AddRange(items))
        End Function

        ''' <summary>
        ''' Represents the list of AttributeStatements at the beginning of a source file
        ''' that contain the Assembly and Module attributes.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Attributes As SyntaxList(Of AttributesStatementSyntax)
            Get
                Dim listNode = GetRed(_attributes, 2)
                Return new SyntaxList(Of AttributesStatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Attributes property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAttributes(attributes as SyntaxList(Of AttributesStatementSyntax)) As CompilationUnitSyntax
            return Update(Me.Options, Me.Imports, attributes, Me.Members, Me.EndOfFileToken)
        End Function

        Public Shadows Function AddAttributes(ParamArray items As AttributesStatementSyntax()) As CompilationUnitSyntax
            Return Me.WithAttributes(Me.Attributes.AddRange(items))
        End Function

        ''' <summary>
        ''' Represents the members of the default namespace for this source file: all the
        ''' top-level type and namespace declarations in the file. May also contain
        ''' Statements that are not valid
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_members, 3)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithMembers(members as SyntaxList(Of StatementSyntax)) As CompilationUnitSyntax
            return Update(Me.Options, Me.Imports, Me.Attributes, members, Me.EndOfFileToken)
        End Function

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As CompilationUnitSyntax
            Return Me.WithMembers(Me.Members.AddRange(items))
        End Function

        ''' <summary>
        ''' Represents the end of the source file. This token may have trivia (whitespace,
        ''' comments, ...) attached to it.
        ''' </summary>
        Public ReadOnly Property EndOfFileToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CompilationUnitSyntax)._endOfFileToken, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndOfFileToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndOfFileToken(endOfFileToken as SyntaxToken) As CompilationUnitSyntax
            return Update(Me.Options, Me.Imports, Me.Attributes, Me.Members, endOfFileToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._options
                Case 1
                    Return Me._imports
                Case 2
                    Return Me._attributes
                Case 3
                    Return Me._members
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_options)
                Case 1
                    Return GetRed(_imports, 1)
                Case 2
                    Return GetRed(_attributes, 2)
                Case 3
                    Return GetRed(_members, 3)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCompilationUnit(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCompilationUnit(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="options">
        ''' The value for the Options property.
        ''' </param>
        ''' <param name="imports">
        ''' The value for the Imports property.
        ''' </param>
        ''' <param name="attributes">
        ''' The value for the Attributes property.
        ''' </param>
        ''' <param name="members">
        ''' The value for the Members property.
        ''' </param>
        ''' <param name="endOfFileToken">
        ''' The value for the EndOfFileToken property.
        ''' </param>
        Public Function Update(options As SyntaxList(of OptionStatementSyntax), [imports] As SyntaxList(of ImportsStatementSyntax), attributes As SyntaxList(of AttributesStatementSyntax), members As SyntaxList(of StatementSyntax), endOfFileToken As SyntaxToken) As CompilationUnitSyntax
            If options <> Me.Options OrElse [imports] <> Me.[Imports] OrElse attributes <> Me.Attributes OrElse members <> Me.Members OrElse endOfFileToken <> Me.EndOfFileToken Then
                Dim newNode = SyntaxFactory.CompilationUnit(options, [imports], attributes, members, endOfFileToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an Option statement, such as "Option Strict On".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.OptionStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OptionStatementSyntax
        Inherits DeclarationStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), optionKeyword As InternalSyntax.KeywordSyntax, nameKeyword As InternalSyntax.KeywordSyntax, valueKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OptionStatementSyntax(kind, errors, annotations, optionKeyword, nameKeyword, valueKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Option" keyword.
        ''' </summary>
        Public ReadOnly Property OptionKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OptionStatementSyntax)._optionKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OptionKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOptionKeyword(optionKeyword as SyntaxToken) As OptionStatementSyntax
            return Update(optionKeyword, Me.NameKeyword, Me.ValueKeyword)
        End Function

        ''' <summary>
        ''' The keyword that identifies the option being set: Explicit, Strict, Compare or
        ''' Infer.
        ''' </summary>
        Public ReadOnly Property NameKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OptionStatementSyntax)._nameKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NameKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNameKeyword(nameKeyword as SyntaxToken) As OptionStatementSyntax
            return Update(Me.OptionKeyword, nameKeyword, Me.ValueKeyword)
        End Function

        ''' <summary>
        ''' The keyword that identifiers the value being set for the option: On, Off, Text
        ''' or Binary.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ValueKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OptionStatementSyntax)._valueKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(2), Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ValueKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithValueKeyword(valueKeyword as SyntaxToken) As OptionStatementSyntax
            return Update(Me.OptionKeyword, Me.NameKeyword, valueKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOptionStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOptionStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="optionKeyword">
        ''' The value for the OptionKeyword property.
        ''' </param>
        ''' <param name="nameKeyword">
        ''' The value for the NameKeyword property.
        ''' </param>
        ''' <param name="valueKeyword">
        ''' The value for the ValueKeyword property.
        ''' </param>
        Public Function Update(optionKeyword As SyntaxToken, nameKeyword As SyntaxToken, valueKeyword As SyntaxToken) As OptionStatementSyntax
            If optionKeyword <> Me.OptionKeyword OrElse nameKeyword <> Me.NameKeyword OrElse valueKeyword <> Me.ValueKeyword Then
                Dim newNode = SyntaxFactory.OptionStatement(optionKeyword, nameKeyword, valueKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an Imports statement, which has one or more imports clauses.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ImportsStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ImportsStatementSyntax
        Inherits DeclarationStatementSyntax

        Friend _importsClauses as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), importsKeyword As InternalSyntax.KeywordSyntax, importsClauses As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImportsStatementSyntax(kind, errors, annotations, importsKeyword, if(importsClauses IsNot Nothing, importsClauses.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Imports" keyword.
        ''' </summary>
        Public ReadOnly Property ImportsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImportsStatementSyntax)._importsKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ImportsKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithImportsKeyword(importsKeyword as SyntaxToken) As ImportsStatementSyntax
            return Update(importsKeyword, Me.ImportsClauses)
        End Function

        ''' <summary>
        ''' A list of one or more import clauses. Each clause is either an alias, namespace
        ''' or XML namespace import.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property ImportsClauses As SeparatedSyntaxList(Of ImportsClauseSyntax)
            Get
                Dim listNode = GetRed(_importsClauses, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ImportsClauseSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ImportsClauses property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithImportsClauses(importsClauses as SeparatedSyntaxList(Of ImportsClauseSyntax)) As ImportsStatementSyntax
            return Update(Me.ImportsKeyword, importsClauses)
        End Function

        Public Shadows Function AddImportsClauses(ParamArray items As ImportsClauseSyntax()) As ImportsStatementSyntax
            Return Me.WithImportsClauses(Me.ImportsClauses.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._importsClauses
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_importsClauses, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitImportsStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitImportsStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="importsKeyword">
        ''' The value for the ImportsKeyword property.
        ''' </param>
        ''' <param name="importsClauses">
        ''' The value for the ImportsClauses property.
        ''' </param>
        Public Function Update(importsKeyword As SyntaxToken, importsClauses As SeparatedSyntaxList(Of ImportsClauseSyntax)) As ImportsStatementSyntax
            If importsKeyword <> Me.ImportsKeyword OrElse importsClauses <> Me.ImportsClauses Then
                Dim newNode = SyntaxFactory.ImportsStatement(importsKeyword, importsClauses)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The base class for the possible clauses of an Imports statement.
    ''' </summary>
    Public MustInherit Class ImportsClauseSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents the clause of an Imports statement that imports all members of a
    ''' type or namespace or aliases a type or namespace.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleImportsClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SimpleImportsClauseSyntax
        Inherits ImportsClauseSyntax

        Friend _alias as ImportAliasClauseSyntax
        Friend _name as NameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), [alias] As ImportAliasClauseSyntax, name As NameSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleImportsClauseSyntax(kind, errors, annotations, if([alias] IsNot Nothing, DirectCast([alias].Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImportAliasClauseSyntax), Nothing), DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' An optional alias for the namespace or type being imported.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property [Alias] As ImportAliasClauseSyntax
            Get
                Return GetRedAtZero(_alias)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the [Alias] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAlias([alias] as ImportAliasClauseSyntax) As SimpleImportsClauseSyntax
            return Update([alias], Me.Name)
        End Function

        ''' <summary>
        ''' The namespace or type being imported.
        ''' </summary>
        Public ReadOnly Property Name As NameSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as NameSyntax) As SimpleImportsClauseSyntax
            return Update(Me.Alias, name)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._alias
                Case 1
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.[Alias]
                Case 1
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSimpleImportsClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSimpleImportsClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="alias">
        ''' The value for the Alias property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        Public Function Update([alias] As ImportAliasClauseSyntax, name As NameSyntax) As SimpleImportsClauseSyntax
            If [alias] IsNot Me.[Alias] OrElse name IsNot Me.Name Then
                Dim newNode = SyntaxFactory.SimpleImportsClause([alias], name)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an alias identifier followed by an "=" token in an Imports clause.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ImportAliasClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ImportAliasClauseSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As InternalSyntax.IdentifierTokenSyntax, equalsToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImportAliasClauseSyntax(kind, errors, annotations, identifier, equalsToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The identifier being introduced.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImportAliasClauseSyntax)._identifier, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As ImportAliasClauseSyntax
            return Update(identifier, Me.EqualsToken)
        End Function

        ''' <summary>
        ''' The "=" token.
        ''' </summary>
        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImportAliasClauseSyntax)._equalsToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As ImportAliasClauseSyntax
            return Update(Me.Identifier, equalsToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitImportAliasClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitImportAliasClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        Public Function Update(identifier As SyntaxToken, equalsToken As SyntaxToken) As ImportAliasClauseSyntax
            If identifier <> Me.Identifier OrElse equalsToken <> Me.EqualsToken Then
                Dim newNode = SyntaxFactory.ImportAliasClause(identifier, equalsToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Defines a XML namespace for XML expressions.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlNamespaceImportsClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlNamespaceImportsClauseSyntax
        Inherits ImportsClauseSyntax

        Friend _xmlNamespace as XmlAttributeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanToken As InternalSyntax.PunctuationSyntax, xmlNamespace As XmlAttributeSyntax, greaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNamespaceImportsClauseSyntax(kind, errors, annotations, lessThanToken, DirectCast(xmlNamespace.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlAttributeSyntax), greaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNamespaceImportsClauseSyntax)._lessThanToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLessThanToken(lessThanToken as SyntaxToken) As XmlNamespaceImportsClauseSyntax
            return Update(lessThanToken, Me.XmlNamespace, Me.GreaterThanToken)
        End Function

        ''' <summary>
        ''' Identifies the XML namespace alias and URI.
        ''' </summary>
        Public ReadOnly Property XmlNamespace As XmlAttributeSyntax
            Get
                Return GetRed(_xmlNamespace, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the XmlNamespace property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithXmlNamespace(xmlNamespace as XmlAttributeSyntax) As XmlNamespaceImportsClauseSyntax
            return Update(Me.LessThanToken, xmlNamespace, Me.GreaterThanToken)
        End Function

        Public ReadOnly Property GreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNamespaceImportsClauseSyntax)._greaterThanToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GreaterThanToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithGreaterThanToken(greaterThanToken as SyntaxToken) As XmlNamespaceImportsClauseSyntax
            return Update(Me.LessThanToken, Me.XmlNamespace, greaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._xmlNamespace
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.XmlNamespace
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlNamespaceImportsClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlNamespaceImportsClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanToken">
        ''' The value for the LessThanToken property.
        ''' </param>
        ''' <param name="xmlNamespace">
        ''' The value for the XmlNamespace property.
        ''' </param>
        ''' <param name="greaterThanToken">
        ''' The value for the GreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanToken As SyntaxToken, xmlNamespace As XmlAttributeSyntax, greaterThanToken As SyntaxToken) As XmlNamespaceImportsClauseSyntax
            If lessThanToken <> Me.LessThanToken OrElse xmlNamespace IsNot Me.XmlNamespace OrElse greaterThanToken <> Me.GreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlNamespaceImportsClause(lessThanToken, xmlNamespace, greaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Namespace statement, its contents and the End Namespace statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NamespaceBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NamespaceBlockSyntax
        Inherits DeclarationStatementSyntax

        Friend _namespaceStatement as NamespaceStatementSyntax
        Friend _members as SyntaxNode
        Friend _endNamespaceStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), namespaceStatement As NamespaceStatementSyntax, members As SyntaxNode, endNamespaceStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamespaceBlockSyntax(kind, errors, annotations, DirectCast(namespaceStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamespaceStatementSyntax), if(members IsNot Nothing, members.Green, Nothing), DirectCast(endNamespaceStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The statement that begins the NamespaceBlock.
        ''' </summary>
        Public ReadOnly Property NamespaceStatement As NamespaceStatementSyntax
            Get
                Return GetRedAtZero(_namespaceStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NamespaceStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithNamespaceStatement(namespaceStatement as NamespaceStatementSyntax) As NamespaceBlockSyntax
            return Update(namespaceStatement, Me.Members, Me.EndNamespaceStatement)
        End Function

        ''' <summary>
        ''' The declarations contained in the namespace statement.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_members, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithMembers(members as SyntaxList(Of StatementSyntax)) As NamespaceBlockSyntax
            return Update(Me.NamespaceStatement, members, Me.EndNamespaceStatement)
        End Function

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As NamespaceBlockSyntax
            Return Me.WithMembers(Me.Members.AddRange(items))
        End Function

        ''' <summary>
        ''' The End Namespace statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndNamespaceStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endNamespaceStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndNamespaceStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndNamespaceStatement(endNamespaceStatement as EndBlockStatementSyntax) As NamespaceBlockSyntax
            return Update(Me.NamespaceStatement, Me.Members, endNamespaceStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._namespaceStatement
                Case 1
                    Return Me._members
                Case 2
                    Return Me._endNamespaceStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.NamespaceStatement
                Case 1
                    Return GetRed(_members, 1)
                Case 2
                    Return Me.EndNamespaceStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNamespaceBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNamespaceBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="namespaceStatement">
        ''' The value for the NamespaceStatement property.
        ''' </param>
        ''' <param name="members">
        ''' The value for the Members property.
        ''' </param>
        ''' <param name="endNamespaceStatement">
        ''' The value for the EndNamespaceStatement property.
        ''' </param>
        Public Function Update(namespaceStatement As NamespaceStatementSyntax, members As SyntaxList(of StatementSyntax), endNamespaceStatement As EndBlockStatementSyntax) As NamespaceBlockSyntax
            If namespaceStatement IsNot Me.NamespaceStatement OrElse members <> Me.Members OrElse endNamespaceStatement IsNot Me.EndNamespaceStatement Then
                Dim newNode = SyntaxFactory.NamespaceBlock(namespaceStatement, members, endNamespaceStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning statement of a namespace declaration. This node always
    ''' appears as the Begin of a BlockStatement with Kind=NamespaceBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NamespaceStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NamespaceStatementSyntax
        Inherits DeclarationStatementSyntax

        Friend _name as NameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), namespaceKeyword As InternalSyntax.KeywordSyntax, name As NameSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamespaceStatementSyntax(kind, errors, annotations, namespaceKeyword, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Namespace" keyword.
        ''' </summary>
        Public ReadOnly Property NamespaceKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamespaceStatementSyntax)._namespaceKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NamespaceKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithNamespaceKeyword(namespaceKeyword as SyntaxToken) As NamespaceStatementSyntax
            return Update(namespaceKeyword, Me.Name)
        End Function

        ''' <summary>
        ''' A (possibly dotted) name denoting the namespace being declared.
        ''' </summary>
        Public ReadOnly Property Name As NameSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as NameSyntax) As NamespaceStatementSyntax
            return Update(Me.NamespaceKeyword, name)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNamespaceStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNamespaceStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="namespaceKeyword">
        ''' The value for the NamespaceKeyword property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        Public Function Update(namespaceKeyword As SyntaxToken, name As NameSyntax) As NamespaceStatementSyntax
            If namespaceKeyword <> Me.NamespaceKeyword OrElse name IsNot Me.Name Then
                Dim newNode = SyntaxFactory.NamespaceStatement(namespaceKeyword, name)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a declaration of a Class, Interface, Structure, Module, its contents
    ''' and the End statement that ends it.
    ''' </summary>
    Public MustInherit Class TypeBlockSyntax
        Inherits DeclarationStatementSyntax

        Friend _inherits as SyntaxNode
        Friend _implements as SyntaxNode
        Friend _members as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' A list of the Inherits declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property [Inherits] As SyntaxList(Of InheritsStatementSyntax)
            Get
                Return Me.GetInheritsCore()
            End Get
        End Property

        Friend Overridable Function GetInheritsCore() As SyntaxList(Of InheritsStatementSyntax)
            Dim listNode = GetRedAtZero(_inherits)
            Return new SyntaxList(Of InheritsStatementSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Inherits] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithInherits([inherits] As SyntaxList(Of InheritsStatementSyntax)) As TypeBlockSyntax
            Return WithInheritsCore([inherits])
        End Function
        Friend MustOverride Function WithInheritsCore([inherits] As SyntaxList(Of InheritsStatementSyntax)) As TypeBlockSyntax

        Public Shadows Function AddInherits(ParamArray items As InheritsStatementSyntax()) As TypeBlockSyntax
            Return AddInheritsCore(items)
        End Function
        Friend MustOverride Function AddInheritsCore(ParamArray items As InheritsStatementSyntax()) As TypeBlockSyntax
        ''' <summary>
        ''' A list of the Implements declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property [Implements] As SyntaxList(Of ImplementsStatementSyntax)
            Get
                Return Me.GetImplementsCore()
            End Get
        End Property

        Friend Overridable Function GetImplementsCore() As SyntaxList(Of ImplementsStatementSyntax)
            Dim listNode = GetRed(_implements, 1)
            Return new SyntaxList(Of ImplementsStatementSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Implements] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithImplements([implements] As SyntaxList(Of ImplementsStatementSyntax)) As TypeBlockSyntax
            Return WithImplementsCore([implements])
        End Function
        Friend MustOverride Function WithImplementsCore([implements] As SyntaxList(Of ImplementsStatementSyntax)) As TypeBlockSyntax

        Public Shadows Function AddImplements(ParamArray items As ImplementsStatementSyntax()) As TypeBlockSyntax
            Return AddImplementsCore(items)
        End Function
        Friend MustOverride Function AddImplementsCore(ParamArray items As ImplementsStatementSyntax()) As TypeBlockSyntax
        ''' <summary>
        ''' The declarations contained in the type or module.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Return Me.GetMembersCore()
            End Get
        End Property

        Friend Overridable Function GetMembersCore() As SyntaxList(Of StatementSyntax)
            Dim listNode = GetRed(_members, 2)
            Return new SyntaxList(Of StatementSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithMembers(members As SyntaxList(Of StatementSyntax)) As TypeBlockSyntax
            Return WithMembersCore(members)
        End Function
        Friend MustOverride Function WithMembersCore(members As SyntaxList(Of StatementSyntax)) As TypeBlockSyntax

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As TypeBlockSyntax
            Return AddMembersCore(items)
        End Function
        Friend MustOverride Function AddMembersCore(ParamArray items As StatementSyntax()) As TypeBlockSyntax
    End Class

    ''' <summary>
    ''' Represents a declaration of Module, its contents and the End statement that
    ''' ends it.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ModuleBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ModuleBlockSyntax
        Inherits TypeBlockSyntax

        Friend _moduleStatement as ModuleStatementSyntax
        Friend _endModuleStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), moduleStatement As ModuleStatementSyntax, [inherits] As SyntaxNode, [implements] As SyntaxNode, members As SyntaxNode, endModuleStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModuleBlockSyntax(kind, errors, annotations, DirectCast(moduleStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModuleStatementSyntax), if([inherits] IsNot Nothing, [inherits].Green, Nothing), if([implements] IsNot Nothing, [implements].Green, Nothing), if(members IsNot Nothing, members.Green, Nothing), DirectCast(endModuleStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Module" statement that begins the block.
        ''' </summary>
        Public ReadOnly Property ModuleStatement As ModuleStatementSyntax
            Get
                Return GetRedAtZero(_moduleStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ModuleStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithModuleStatement(moduleStatement as ModuleStatementSyntax) As ModuleBlockSyntax
            return Update(moduleStatement, Me.Inherits, Me.Implements, Me.Members, Me.EndModuleStatement)
        End Function

        ''' <summary>
        ''' A list of the Inherits declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Inherits] As SyntaxList(Of InheritsStatementSyntax)
            Get
                Dim listNode = GetRed(_inherits, 1)
                Return new SyntaxList(Of InheritsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetInheritsCore() As SyntaxList(Of InheritsStatementSyntax)
            Return Me.[Inherits]
        End Function

        Friend Overrides Function WithInheritsCore([inherits] As SyntaxList(Of InheritsStatementSyntax)) As TypeBlockSyntax
            Return WithInherits([inherits])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Inherits] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInherits([inherits] as SyntaxList(Of InheritsStatementSyntax)) As ModuleBlockSyntax
            return Update(Me.ModuleStatement, [inherits], Me.Implements, Me.Members, Me.EndModuleStatement)
        End Function

        Public Shadows Function AddInherits(ParamArray items As InheritsStatementSyntax()) As ModuleBlockSyntax
            Return Me.WithInherits(Me.Inherits.AddRange(items))
        End Function

        Friend Overrides Function AddInheritsCore(ParamArray items As InheritsStatementSyntax()) As TypeBlockSyntax
            Return AddInherits(items)
        End Function

        ''' <summary>
        ''' A list of the Implements declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Implements] As SyntaxList(Of ImplementsStatementSyntax)
            Get
                Dim listNode = GetRed(_implements, 2)
                Return new SyntaxList(Of ImplementsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetImplementsCore() As SyntaxList(Of ImplementsStatementSyntax)
            Return Me.[Implements]
        End Function

        Friend Overrides Function WithImplementsCore([implements] As SyntaxList(Of ImplementsStatementSyntax)) As TypeBlockSyntax
            Return WithImplements([implements])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Implements] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithImplements([implements] as SyntaxList(Of ImplementsStatementSyntax)) As ModuleBlockSyntax
            return Update(Me.ModuleStatement, Me.Inherits, [implements], Me.Members, Me.EndModuleStatement)
        End Function

        Public Shadows Function AddImplements(ParamArray items As ImplementsStatementSyntax()) As ModuleBlockSyntax
            Return Me.WithImplements(Me.Implements.AddRange(items))
        End Function

        Friend Overrides Function AddImplementsCore(ParamArray items As ImplementsStatementSyntax()) As TypeBlockSyntax
            Return AddImplements(items)
        End Function

        ''' <summary>
        ''' The declarations contained in the type or module.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_members, 3)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetMembersCore() As SyntaxList(Of StatementSyntax)
            Return Me.Members
        End Function

        Friend Overrides Function WithMembersCore(members As SyntaxList(Of StatementSyntax)) As TypeBlockSyntax
            Return WithMembers(members)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithMembers(members as SyntaxList(Of StatementSyntax)) As ModuleBlockSyntax
            return Update(Me.ModuleStatement, Me.Inherits, Me.Implements, members, Me.EndModuleStatement)
        End Function

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As ModuleBlockSyntax
            Return Me.WithMembers(Me.Members.AddRange(items))
        End Function

        Friend Overrides Function AddMembersCore(ParamArray items As StatementSyntax()) As TypeBlockSyntax
            Return AddMembers(items)
        End Function

        ''' <summary>
        ''' The "End Module" statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndModuleStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endModuleStatement, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndModuleStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndModuleStatement(endModuleStatement as EndBlockStatementSyntax) As ModuleBlockSyntax
            return Update(Me.ModuleStatement, Me.Inherits, Me.Implements, Me.Members, endModuleStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._moduleStatement
                Case 1
                    Return Me._inherits
                Case 2
                    Return Me._implements
                Case 3
                    Return Me._members
                Case 4
                    Return Me._endModuleStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ModuleStatement
                Case 1
                    Return GetRed(_inherits, 1)
                Case 2
                    Return GetRed(_implements, 2)
                Case 3
                    Return GetRed(_members, 3)
                Case 4
                    Return Me.EndModuleStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitModuleBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitModuleBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="moduleStatement">
        ''' The value for the ModuleStatement property.
        ''' </param>
        ''' <param name="inherits">
        ''' The value for the Inherits property.
        ''' </param>
        ''' <param name="implements">
        ''' The value for the Implements property.
        ''' </param>
        ''' <param name="members">
        ''' The value for the Members property.
        ''' </param>
        ''' <param name="endModuleStatement">
        ''' The value for the EndModuleStatement property.
        ''' </param>
        Public Function Update(moduleStatement As ModuleStatementSyntax, [inherits] As SyntaxList(of InheritsStatementSyntax), [implements] As SyntaxList(of ImplementsStatementSyntax), members As SyntaxList(of StatementSyntax), endModuleStatement As EndBlockStatementSyntax) As ModuleBlockSyntax
            If moduleStatement IsNot Me.ModuleStatement OrElse [inherits] <> Me.[Inherits] OrElse [implements] <> Me.[Implements] OrElse members <> Me.Members OrElse endModuleStatement IsNot Me.EndModuleStatement Then
                Dim newNode = SyntaxFactory.ModuleBlock(moduleStatement, [inherits], [implements], members, endModuleStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a declaration of a Structure, its contents and the End statement
    ''' that ends it.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.StructureBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class StructureBlockSyntax
        Inherits TypeBlockSyntax

        Friend _structureStatement as StructureStatementSyntax
        Friend _endStructureStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), structureStatement As StructureStatementSyntax, [inherits] As SyntaxNode, [implements] As SyntaxNode, members As SyntaxNode, endStructureStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StructureBlockSyntax(kind, errors, annotations, DirectCast(structureStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StructureStatementSyntax), if([inherits] IsNot Nothing, [inherits].Green, Nothing), if([implements] IsNot Nothing, [implements].Green, Nothing), if(members IsNot Nothing, members.Green, Nothing), DirectCast(endStructureStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Structure" statement that begins the block.
        ''' </summary>
        Public ReadOnly Property StructureStatement As StructureStatementSyntax
            Get
                Return GetRedAtZero(_structureStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StructureStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithStructureStatement(structureStatement as StructureStatementSyntax) As StructureBlockSyntax
            return Update(structureStatement, Me.Inherits, Me.Implements, Me.Members, Me.EndStructureStatement)
        End Function

        ''' <summary>
        ''' A list of the Inherits declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Inherits] As SyntaxList(Of InheritsStatementSyntax)
            Get
                Dim listNode = GetRed(_inherits, 1)
                Return new SyntaxList(Of InheritsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetInheritsCore() As SyntaxList(Of InheritsStatementSyntax)
            Return Me.[Inherits]
        End Function

        Friend Overrides Function WithInheritsCore([inherits] As SyntaxList(Of InheritsStatementSyntax)) As TypeBlockSyntax
            Return WithInherits([inherits])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Inherits] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInherits([inherits] as SyntaxList(Of InheritsStatementSyntax)) As StructureBlockSyntax
            return Update(Me.StructureStatement, [inherits], Me.Implements, Me.Members, Me.EndStructureStatement)
        End Function

        Public Shadows Function AddInherits(ParamArray items As InheritsStatementSyntax()) As StructureBlockSyntax
            Return Me.WithInherits(Me.Inherits.AddRange(items))
        End Function

        Friend Overrides Function AddInheritsCore(ParamArray items As InheritsStatementSyntax()) As TypeBlockSyntax
            Return AddInherits(items)
        End Function

        ''' <summary>
        ''' A list of the Implements declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Implements] As SyntaxList(Of ImplementsStatementSyntax)
            Get
                Dim listNode = GetRed(_implements, 2)
                Return new SyntaxList(Of ImplementsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetImplementsCore() As SyntaxList(Of ImplementsStatementSyntax)
            Return Me.[Implements]
        End Function

        Friend Overrides Function WithImplementsCore([implements] As SyntaxList(Of ImplementsStatementSyntax)) As TypeBlockSyntax
            Return WithImplements([implements])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Implements] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithImplements([implements] as SyntaxList(Of ImplementsStatementSyntax)) As StructureBlockSyntax
            return Update(Me.StructureStatement, Me.Inherits, [implements], Me.Members, Me.EndStructureStatement)
        End Function

        Public Shadows Function AddImplements(ParamArray items As ImplementsStatementSyntax()) As StructureBlockSyntax
            Return Me.WithImplements(Me.Implements.AddRange(items))
        End Function

        Friend Overrides Function AddImplementsCore(ParamArray items As ImplementsStatementSyntax()) As TypeBlockSyntax
            Return AddImplements(items)
        End Function

        ''' <summary>
        ''' The declarations contained in the type or module.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_members, 3)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetMembersCore() As SyntaxList(Of StatementSyntax)
            Return Me.Members
        End Function

        Friend Overrides Function WithMembersCore(members As SyntaxList(Of StatementSyntax)) As TypeBlockSyntax
            Return WithMembers(members)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithMembers(members as SyntaxList(Of StatementSyntax)) As StructureBlockSyntax
            return Update(Me.StructureStatement, Me.Inherits, Me.Implements, members, Me.EndStructureStatement)
        End Function

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As StructureBlockSyntax
            Return Me.WithMembers(Me.Members.AddRange(items))
        End Function

        Friend Overrides Function AddMembersCore(ParamArray items As StatementSyntax()) As TypeBlockSyntax
            Return AddMembers(items)
        End Function

        ''' <summary>
        ''' The "End Structure" statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndStructureStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endStructureStatement, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndStructureStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndStructureStatement(endStructureStatement as EndBlockStatementSyntax) As StructureBlockSyntax
            return Update(Me.StructureStatement, Me.Inherits, Me.Implements, Me.Members, endStructureStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._structureStatement
                Case 1
                    Return Me._inherits
                Case 2
                    Return Me._implements
                Case 3
                    Return Me._members
                Case 4
                    Return Me._endStructureStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.StructureStatement
                Case 1
                    Return GetRed(_inherits, 1)
                Case 2
                    Return GetRed(_implements, 2)
                Case 3
                    Return GetRed(_members, 3)
                Case 4
                    Return Me.EndStructureStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitStructureBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitStructureBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="structureStatement">
        ''' The value for the StructureStatement property.
        ''' </param>
        ''' <param name="inherits">
        ''' The value for the Inherits property.
        ''' </param>
        ''' <param name="implements">
        ''' The value for the Implements property.
        ''' </param>
        ''' <param name="members">
        ''' The value for the Members property.
        ''' </param>
        ''' <param name="endStructureStatement">
        ''' The value for the EndStructureStatement property.
        ''' </param>
        Public Function Update(structureStatement As StructureStatementSyntax, [inherits] As SyntaxList(of InheritsStatementSyntax), [implements] As SyntaxList(of ImplementsStatementSyntax), members As SyntaxList(of StatementSyntax), endStructureStatement As EndBlockStatementSyntax) As StructureBlockSyntax
            If structureStatement IsNot Me.StructureStatement OrElse [inherits] <> Me.[Inherits] OrElse [implements] <> Me.[Implements] OrElse members <> Me.Members OrElse endStructureStatement IsNot Me.EndStructureStatement Then
                Dim newNode = SyntaxFactory.StructureBlock(structureStatement, [inherits], [implements], members, endStructureStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a declaration of a Interface, its contents and the End statement
    ''' that ends it.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InterfaceBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InterfaceBlockSyntax
        Inherits TypeBlockSyntax

        Friend _interfaceStatement as InterfaceStatementSyntax
        Friend _endInterfaceStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), interfaceStatement As InterfaceStatementSyntax, [inherits] As SyntaxNode, [implements] As SyntaxNode, members As SyntaxNode, endInterfaceStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterfaceBlockSyntax(kind, errors, annotations, DirectCast(interfaceStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterfaceStatementSyntax), if([inherits] IsNot Nothing, [inherits].Green, Nothing), if([implements] IsNot Nothing, [implements].Green, Nothing), if(members IsNot Nothing, members.Green, Nothing), DirectCast(endInterfaceStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Interface" statement that begins the block.
        ''' </summary>
        Public ReadOnly Property InterfaceStatement As InterfaceStatementSyntax
            Get
                Return GetRedAtZero(_interfaceStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the InterfaceStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithInterfaceStatement(interfaceStatement as InterfaceStatementSyntax) As InterfaceBlockSyntax
            return Update(interfaceStatement, Me.Inherits, Me.Implements, Me.Members, Me.EndInterfaceStatement)
        End Function

        ''' <summary>
        ''' A list of the Inherits declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Inherits] As SyntaxList(Of InheritsStatementSyntax)
            Get
                Dim listNode = GetRed(_inherits, 1)
                Return new SyntaxList(Of InheritsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetInheritsCore() As SyntaxList(Of InheritsStatementSyntax)
            Return Me.[Inherits]
        End Function

        Friend Overrides Function WithInheritsCore([inherits] As SyntaxList(Of InheritsStatementSyntax)) As TypeBlockSyntax
            Return WithInherits([inherits])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Inherits] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInherits([inherits] as SyntaxList(Of InheritsStatementSyntax)) As InterfaceBlockSyntax
            return Update(Me.InterfaceStatement, [inherits], Me.Implements, Me.Members, Me.EndInterfaceStatement)
        End Function

        Public Shadows Function AddInherits(ParamArray items As InheritsStatementSyntax()) As InterfaceBlockSyntax
            Return Me.WithInherits(Me.Inherits.AddRange(items))
        End Function

        Friend Overrides Function AddInheritsCore(ParamArray items As InheritsStatementSyntax()) As TypeBlockSyntax
            Return AddInherits(items)
        End Function

        ''' <summary>
        ''' A list of the Implements declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Implements] As SyntaxList(Of ImplementsStatementSyntax)
            Get
                Dim listNode = GetRed(_implements, 2)
                Return new SyntaxList(Of ImplementsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetImplementsCore() As SyntaxList(Of ImplementsStatementSyntax)
            Return Me.[Implements]
        End Function

        Friend Overrides Function WithImplementsCore([implements] As SyntaxList(Of ImplementsStatementSyntax)) As TypeBlockSyntax
            Return WithImplements([implements])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Implements] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithImplements([implements] as SyntaxList(Of ImplementsStatementSyntax)) As InterfaceBlockSyntax
            return Update(Me.InterfaceStatement, Me.Inherits, [implements], Me.Members, Me.EndInterfaceStatement)
        End Function

        Public Shadows Function AddImplements(ParamArray items As ImplementsStatementSyntax()) As InterfaceBlockSyntax
            Return Me.WithImplements(Me.Implements.AddRange(items))
        End Function

        Friend Overrides Function AddImplementsCore(ParamArray items As ImplementsStatementSyntax()) As TypeBlockSyntax
            Return AddImplements(items)
        End Function

        ''' <summary>
        ''' The declarations contained in the type or module.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_members, 3)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetMembersCore() As SyntaxList(Of StatementSyntax)
            Return Me.Members
        End Function

        Friend Overrides Function WithMembersCore(members As SyntaxList(Of StatementSyntax)) As TypeBlockSyntax
            Return WithMembers(members)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithMembers(members as SyntaxList(Of StatementSyntax)) As InterfaceBlockSyntax
            return Update(Me.InterfaceStatement, Me.Inherits, Me.Implements, members, Me.EndInterfaceStatement)
        End Function

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As InterfaceBlockSyntax
            Return Me.WithMembers(Me.Members.AddRange(items))
        End Function

        Friend Overrides Function AddMembersCore(ParamArray items As StatementSyntax()) As TypeBlockSyntax
            Return AddMembers(items)
        End Function

        ''' <summary>
        ''' The "End Interface" statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndInterfaceStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endInterfaceStatement, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndInterfaceStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndInterfaceStatement(endInterfaceStatement as EndBlockStatementSyntax) As InterfaceBlockSyntax
            return Update(Me.InterfaceStatement, Me.Inherits, Me.Implements, Me.Members, endInterfaceStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._interfaceStatement
                Case 1
                    Return Me._inherits
                Case 2
                    Return Me._implements
                Case 3
                    Return Me._members
                Case 4
                    Return Me._endInterfaceStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.InterfaceStatement
                Case 1
                    Return GetRed(_inherits, 1)
                Case 2
                    Return GetRed(_implements, 2)
                Case 3
                    Return GetRed(_members, 3)
                Case 4
                    Return Me.EndInterfaceStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInterfaceBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInterfaceBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="interfaceStatement">
        ''' The value for the InterfaceStatement property.
        ''' </param>
        ''' <param name="inherits">
        ''' The value for the Inherits property.
        ''' </param>
        ''' <param name="implements">
        ''' The value for the Implements property.
        ''' </param>
        ''' <param name="members">
        ''' The value for the Members property.
        ''' </param>
        ''' <param name="endInterfaceStatement">
        ''' The value for the EndInterfaceStatement property.
        ''' </param>
        Public Function Update(interfaceStatement As InterfaceStatementSyntax, [inherits] As SyntaxList(of InheritsStatementSyntax), [implements] As SyntaxList(of ImplementsStatementSyntax), members As SyntaxList(of StatementSyntax), endInterfaceStatement As EndBlockStatementSyntax) As InterfaceBlockSyntax
            If interfaceStatement IsNot Me.InterfaceStatement OrElse [inherits] <> Me.[Inherits] OrElse [implements] <> Me.[Implements] OrElse members <> Me.Members OrElse endInterfaceStatement IsNot Me.EndInterfaceStatement Then
                Dim newNode = SyntaxFactory.InterfaceBlock(interfaceStatement, [inherits], [implements], members, endInterfaceStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a declaration of a Class its contents and the End statement that
    ''' ends it.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ClassBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ClassBlockSyntax
        Inherits TypeBlockSyntax

        Friend _classStatement as ClassStatementSyntax
        Friend _endClassStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), classStatement As ClassStatementSyntax, [inherits] As SyntaxNode, [implements] As SyntaxNode, members As SyntaxNode, endClassStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ClassBlockSyntax(kind, errors, annotations, DirectCast(classStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ClassStatementSyntax), if([inherits] IsNot Nothing, [inherits].Green, Nothing), if([implements] IsNot Nothing, [implements].Green, Nothing), if(members IsNot Nothing, members.Green, Nothing), DirectCast(endClassStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Class" statement that begins the block.
        ''' </summary>
        Public ReadOnly Property ClassStatement As ClassStatementSyntax
            Get
                Return GetRedAtZero(_classStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ClassStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithClassStatement(classStatement as ClassStatementSyntax) As ClassBlockSyntax
            return Update(classStatement, Me.Inherits, Me.Implements, Me.Members, Me.EndClassStatement)
        End Function

        ''' <summary>
        ''' A list of the Inherits declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Inherits] As SyntaxList(Of InheritsStatementSyntax)
            Get
                Dim listNode = GetRed(_inherits, 1)
                Return new SyntaxList(Of InheritsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetInheritsCore() As SyntaxList(Of InheritsStatementSyntax)
            Return Me.[Inherits]
        End Function

        Friend Overrides Function WithInheritsCore([inherits] As SyntaxList(Of InheritsStatementSyntax)) As TypeBlockSyntax
            Return WithInherits([inherits])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Inherits] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInherits([inherits] as SyntaxList(Of InheritsStatementSyntax)) As ClassBlockSyntax
            return Update(Me.ClassStatement, [inherits], Me.Implements, Me.Members, Me.EndClassStatement)
        End Function

        Public Shadows Function AddInherits(ParamArray items As InheritsStatementSyntax()) As ClassBlockSyntax
            Return Me.WithInherits(Me.Inherits.AddRange(items))
        End Function

        Friend Overrides Function AddInheritsCore(ParamArray items As InheritsStatementSyntax()) As TypeBlockSyntax
            Return AddInherits(items)
        End Function

        ''' <summary>
        ''' A list of the Implements declarations for the type.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property [Implements] As SyntaxList(Of ImplementsStatementSyntax)
            Get
                Dim listNode = GetRed(_implements, 2)
                Return new SyntaxList(Of ImplementsStatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetImplementsCore() As SyntaxList(Of ImplementsStatementSyntax)
            Return Me.[Implements]
        End Function

        Friend Overrides Function WithImplementsCore([implements] As SyntaxList(Of ImplementsStatementSyntax)) As TypeBlockSyntax
            Return WithImplements([implements])
        End Function

        ''' <summary>
        ''' Returns a copy of this with the [Implements] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithImplements([implements] as SyntaxList(Of ImplementsStatementSyntax)) As ClassBlockSyntax
            return Update(Me.ClassStatement, Me.Inherits, [implements], Me.Members, Me.EndClassStatement)
        End Function

        Public Shadows Function AddImplements(ParamArray items As ImplementsStatementSyntax()) As ClassBlockSyntax
            Return Me.WithImplements(Me.Implements.AddRange(items))
        End Function

        Friend Overrides Function AddImplementsCore(ParamArray items As ImplementsStatementSyntax()) As TypeBlockSyntax
            Return AddImplements(items)
        End Function

        ''' <summary>
        ''' The declarations contained in the type or module.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_members, 3)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetMembersCore() As SyntaxList(Of StatementSyntax)
            Return Me.Members
        End Function

        Friend Overrides Function WithMembersCore(members As SyntaxList(Of StatementSyntax)) As TypeBlockSyntax
            Return WithMembers(members)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithMembers(members as SyntaxList(Of StatementSyntax)) As ClassBlockSyntax
            return Update(Me.ClassStatement, Me.Inherits, Me.Implements, members, Me.EndClassStatement)
        End Function

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As ClassBlockSyntax
            Return Me.WithMembers(Me.Members.AddRange(items))
        End Function

        Friend Overrides Function AddMembersCore(ParamArray items As StatementSyntax()) As TypeBlockSyntax
            Return AddMembers(items)
        End Function

        ''' <summary>
        ''' The "End Class" statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndClassStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endClassStatement, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndClassStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndClassStatement(endClassStatement as EndBlockStatementSyntax) As ClassBlockSyntax
            return Update(Me.ClassStatement, Me.Inherits, Me.Implements, Me.Members, endClassStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._classStatement
                Case 1
                    Return Me._inherits
                Case 2
                    Return Me._implements
                Case 3
                    Return Me._members
                Case 4
                    Return Me._endClassStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ClassStatement
                Case 1
                    Return GetRed(_inherits, 1)
                Case 2
                    Return GetRed(_implements, 2)
                Case 3
                    Return GetRed(_members, 3)
                Case 4
                    Return Me.EndClassStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitClassBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitClassBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="classStatement">
        ''' The value for the ClassStatement property.
        ''' </param>
        ''' <param name="inherits">
        ''' The value for the Inherits property.
        ''' </param>
        ''' <param name="implements">
        ''' The value for the Implements property.
        ''' </param>
        ''' <param name="members">
        ''' The value for the Members property.
        ''' </param>
        ''' <param name="endClassStatement">
        ''' The value for the EndClassStatement property.
        ''' </param>
        Public Function Update(classStatement As ClassStatementSyntax, [inherits] As SyntaxList(of InheritsStatementSyntax), [implements] As SyntaxList(of ImplementsStatementSyntax), members As SyntaxList(of StatementSyntax), endClassStatement As EndBlockStatementSyntax) As ClassBlockSyntax
            If classStatement IsNot Me.ClassStatement OrElse [inherits] <> Me.[Inherits] OrElse [implements] <> Me.[Implements] OrElse members <> Me.Members OrElse endClassStatement IsNot Me.EndClassStatement Then
                Dim newNode = SyntaxFactory.ClassBlock(classStatement, [inherits], [implements], members, endClassStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a declaration of an Enum, its contents and the End Enum statement
    ''' that ends it.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EnumBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EnumBlockSyntax
        Inherits DeclarationStatementSyntax

        Friend _enumStatement as EnumStatementSyntax
        Friend _members as SyntaxNode
        Friend _endEnumStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), enumStatement As EnumStatementSyntax, members As SyntaxNode, endEnumStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumBlockSyntax(kind, errors, annotations, DirectCast(enumStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumStatementSyntax), if(members IsNot Nothing, members.Green, Nothing), DirectCast(endEnumStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The statement that begins the type or module.
        ''' </summary>
        Public ReadOnly Property EnumStatement As EnumStatementSyntax
            Get
                Return GetRedAtZero(_enumStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EnumStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEnumStatement(enumStatement as EnumStatementSyntax) As EnumBlockSyntax
            return Update(enumStatement, Me.Members, Me.EndEnumStatement)
        End Function

        ''' <summary>
        ''' The declarations contained in the enumeration.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Members As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_members, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Members property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithMembers(members as SyntaxList(Of StatementSyntax)) As EnumBlockSyntax
            return Update(Me.EnumStatement, members, Me.EndEnumStatement)
        End Function

        Public Shadows Function AddMembers(ParamArray items As StatementSyntax()) As EnumBlockSyntax
            Return Me.WithMembers(Me.Members.AddRange(items))
        End Function

        ''' <summary>
        ''' The End XXX statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndEnumStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endEnumStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndEnumStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndEnumStatement(endEnumStatement as EndBlockStatementSyntax) As EnumBlockSyntax
            return Update(Me.EnumStatement, Me.Members, endEnumStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._enumStatement
                Case 1
                    Return Me._members
                Case 2
                    Return Me._endEnumStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.EnumStatement
                Case 1
                    Return GetRed(_members, 1)
                Case 2
                    Return Me.EndEnumStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEnumBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEnumBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="enumStatement">
        ''' The value for the EnumStatement property.
        ''' </param>
        ''' <param name="members">
        ''' The value for the Members property.
        ''' </param>
        ''' <param name="endEnumStatement">
        ''' The value for the EndEnumStatement property.
        ''' </param>
        Public Function Update(enumStatement As EnumStatementSyntax, members As SyntaxList(of StatementSyntax), endEnumStatement As EndBlockStatementSyntax) As EnumBlockSyntax
            If enumStatement IsNot Me.EnumStatement OrElse members <> Me.Members OrElse endEnumStatement IsNot Me.EndEnumStatement Then
                Dim newNode = SyntaxFactory.EnumBlock(enumStatement, members, endEnumStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an Inherits or Implements statement in a Class, Structure or
    ''' Interface.
    ''' </summary>
    Public MustInherit Class InheritsOrImplementsStatementSyntax
        Inherits DeclarationStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents an Inherits statement in a Class, Structure or Interface.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InheritsStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InheritsStatementSyntax
        Inherits InheritsOrImplementsStatementSyntax

        Friend _types as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), inheritsKeyword As InternalSyntax.KeywordSyntax, types As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InheritsStatementSyntax(kind, errors, annotations, inheritsKeyword, if(types IsNot Nothing, types.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Inherits" keyword.
        ''' </summary>
        Public ReadOnly Property InheritsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InheritsStatementSyntax)._inheritsKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the InheritsKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithInheritsKeyword(inheritsKeyword as SyntaxToken) As InheritsStatementSyntax
            return Update(inheritsKeyword, Me.Types)
        End Function

        ''' <summary>
        ''' A list of the types being inherited.
        ''' </summary>
        Public ReadOnly Property Types As SeparatedSyntaxList(Of TypeSyntax)
            Get
                Dim listNode = GetRed(_types, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of TypeSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Types property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithTypes(types as SeparatedSyntaxList(Of TypeSyntax)) As InheritsStatementSyntax
            return Update(Me.InheritsKeyword, types)
        End Function

        Public Shadows Function AddTypes(ParamArray items As TypeSyntax()) As InheritsStatementSyntax
            Return Me.WithTypes(Me.Types.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._types
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_types, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInheritsStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInheritsStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="inheritsKeyword">
        ''' The value for the InheritsKeyword property.
        ''' </param>
        ''' <param name="types">
        ''' The value for the Types property.
        ''' </param>
        Public Function Update(inheritsKeyword As SyntaxToken, types As SeparatedSyntaxList(Of TypeSyntax)) As InheritsStatementSyntax
            If inheritsKeyword <> Me.InheritsKeyword OrElse types <> Me.Types Then
                Dim newNode = SyntaxFactory.InheritsStatement(inheritsKeyword, types)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an Implements statement in a Class or Structure.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ImplementsStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ImplementsStatementSyntax
        Inherits InheritsOrImplementsStatementSyntax

        Friend _types as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), implementsKeyword As InternalSyntax.KeywordSyntax, types As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImplementsStatementSyntax(kind, errors, annotations, implementsKeyword, if(types IsNot Nothing, types.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Implements" keyword.
        ''' </summary>
        Public ReadOnly Property ImplementsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImplementsStatementSyntax)._implementsKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ImplementsKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithImplementsKeyword(implementsKeyword as SyntaxToken) As ImplementsStatementSyntax
            return Update(implementsKeyword, Me.Types)
        End Function

        ''' <summary>
        ''' A list of the types being implemented.
        ''' </summary>
        Public ReadOnly Property Types As SeparatedSyntaxList(Of TypeSyntax)
            Get
                Dim listNode = GetRed(_types, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of TypeSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Types property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithTypes(types as SeparatedSyntaxList(Of TypeSyntax)) As ImplementsStatementSyntax
            return Update(Me.ImplementsKeyword, types)
        End Function

        Public Shadows Function AddTypes(ParamArray items As TypeSyntax()) As ImplementsStatementSyntax
            Return Me.WithTypes(Me.Types.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._types
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_types, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitImplementsStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitImplementsStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="implementsKeyword">
        ''' The value for the ImplementsKeyword property.
        ''' </param>
        ''' <param name="types">
        ''' The value for the Types property.
        ''' </param>
        Public Function Update(implementsKeyword As SyntaxToken, types As SeparatedSyntaxList(Of TypeSyntax)) As ImplementsStatementSyntax
            If implementsKeyword <> Me.ImplementsKeyword OrElse types <> Me.Types Then
                Dim newNode = SyntaxFactory.ImplementsStatement(implementsKeyword, types)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Abstract class for the beginning statement of a Module, Class, Interface or
    ''' Structure declaration. This node always appears as the Begin of a TypeBlock
    ''' with Kind=ModuleDeclarationBlock, ClassDeclarationBlock,
    ''' InterfaceDeclarationBlock or StructureDeclarationBlock.
    ''' </summary>
    Public MustInherit Class TypeStatementSyntax
        Inherits DeclarationStatementSyntax

        Friend _attributeLists as SyntaxNode
        Friend _typeParameterList as TypeParameterListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Return Me.GetAttributeListsCore()
            End Get
        End Property

        Friend Overridable Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Dim listNode = GetRedAtZero(_attributeLists)
            Return new SyntaxList(Of AttributeListSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithAttributeLists(attributeLists As SyntaxList(Of AttributeListSyntax)) As TypeStatementSyntax
            Return WithAttributeListsCore(attributeLists)
        End Function
        Friend MustOverride Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As TypeStatementSyntax

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As TypeStatementSyntax
            Return AddAttributeListsCore(items)
        End Function
        Friend MustOverride Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As TypeStatementSyntax
        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Return Me.GetModifiersCore()
            End Get
        End Property

        Friend Overridable Function GetModifiersCore() As SyntaxTokenList
            Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeStatementSyntax)._modifiers
            If slot IsNot Nothing
                return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End If
            Return Nothing
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithModifiers(modifiers As SyntaxTokenList) As TypeStatementSyntax
            Return WithModifiersCore(modifiers)
        End Function
        Friend MustOverride Function WithModifiersCore(modifiers As SyntaxTokenList) As TypeStatementSyntax

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As TypeStatementSyntax
            Return AddModifiersCore(items)
        End Function
        Friend MustOverride Function AddModifiersCore(ParamArray items As SyntaxToken()) As TypeStatementSyntax
        ''' <summary>
        ''' The name of the type being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                Return Me.GetIdentifierCore()
            End Get
        End Property

        Friend Overridable Function GetIdentifierCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeStatementSyntax)._identifier, Me.GetChildPosition(2), Me.GetChildIndex(2))
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithIdentifier(identifier As SyntaxToken) As TypeStatementSyntax
            Return WithIdentifierCore(identifier)
        End Function
        Friend MustOverride Function WithIdentifierCore(identifier As SyntaxToken) As TypeStatementSyntax

        ''' <summary>
        ''' If present, a type parameter list with generic parameters for this type. If no
        ''' generic parameters were present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property TypeParameterList As TypeParameterListSyntax
            Get
                Return Me.GetTypeParameterListCore()
            End Get
        End Property

        Friend Overridable Function GetTypeParameterListCore() As TypeParameterListSyntax
            Return GetRed(_typeParameterList, 3)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithTypeParameterList(typeParameterList As TypeParameterListSyntax) As TypeStatementSyntax
            Return WithTypeParameterListCore(typeParameterList)
        End Function
        Friend MustOverride Function WithTypeParameterListCore(typeParameterList As TypeParameterListSyntax) As TypeStatementSyntax

        Public Shadows Function AddTypeParameterListParameters(ParamArray items As TypeParameterSyntax()) As TypeStatementSyntax
            Return AddTypeParameterListParametersCore(items)
        End Function
        Friend MustOverride Function AddTypeParameterListParametersCore(ParamArray items As TypeParameterSyntax()) As TypeStatementSyntax

    End Class

    ''' <summary>
    ''' Represents the beginning statement of a Module declaration. This node always
    ''' appears as the Begin of a TypeBlock with Kind=ModuleDeclarationBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ModuleStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ModuleStatementSyntax
        Inherits TypeStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, moduleKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, typeParameterList As TypeParameterListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModuleStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, moduleKeyword, identifier, if(typeParameterList IsNot Nothing, DirectCast(typeParameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As TypeStatementSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As ModuleStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.ModuleKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As ModuleStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As TypeStatementSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModuleStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As TypeStatementSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As ModuleStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.ModuleKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As ModuleStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As TypeStatementSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Module" keyword.
        ''' </summary>
        Public ReadOnly Property ModuleKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModuleStatementSyntax)._moduleKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ModuleKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModuleKeyword(moduleKeyword as SyntaxToken) As ModuleStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, moduleKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' The name of the type being declared.
        ''' </summary>
        Public Shadows ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModuleStatementSyntax)._identifier, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetIdentifierCore() As SyntaxToken
            Return Me.Identifier
        End Function

        Friend Overrides Function WithIdentifierCore(identifier As SyntaxToken) As TypeStatementSyntax
            Return WithIdentifier(identifier)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As ModuleStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.ModuleKeyword, identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' If present, a type parameter list with generic parameters for this type. If no
        ''' generic parameters were present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property TypeParameterList As TypeParameterListSyntax
            Get
                Return GetRed(_typeParameterList, 4)
            End Get
        End Property

        Friend Overrides Function GetTypeParameterListCore() As TypeParameterListSyntax
            Return Me.TypeParameterList
        End Function

        Friend Overrides Function WithTypeParameterListCore(typeParameterList As TypeParameterListSyntax) As TypeStatementSyntax
            Return WithTypeParameterList(typeParameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithTypeParameterList(typeParameterList as TypeParameterListSyntax) As ModuleStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.ModuleKeyword, Me.Identifier, typeParameterList)
        End Function

        Public Shadows Function AddTypeParameterListParameters(ParamArray items As TypeParameterSyntax()) As ModuleStatementSyntax
            Dim _child = If(Me.TypeParameterList IsNot Nothing, Me.TypeParameterList, SyntaxFactory.TypeParameterList())
            Return Me.WithTypeParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddTypeParameterListParametersCore(ParamArray items As TypeParameterSyntax()) As TypeStatementSyntax
            Return AddTypeParameterListParameters(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._typeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.TypeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitModuleStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitModuleStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="moduleKeyword">
        ''' The value for the ModuleKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeParameterList">
        ''' The value for the TypeParameterList property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, moduleKeyword As SyntaxToken, identifier As SyntaxToken, typeParameterList As TypeParameterListSyntax) As ModuleStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse moduleKeyword <> Me.ModuleKeyword OrElse identifier <> Me.Identifier OrElse typeParameterList IsNot Me.TypeParameterList Then
                Dim newNode = SyntaxFactory.ModuleStatement(attributeLists, modifiers, moduleKeyword, identifier, typeParameterList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning statement of a Structure declaration. This node always
    ''' appears as the Begin of a TypeBlock with Kind=StructureDeclarationBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.StructureStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class StructureStatementSyntax
        Inherits TypeStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, structureKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, typeParameterList As TypeParameterListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StructureStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, structureKeyword, identifier, if(typeParameterList IsNot Nothing, DirectCast(typeParameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As TypeStatementSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As StructureStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.StructureKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As StructureStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As TypeStatementSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StructureStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As TypeStatementSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As StructureStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.StructureKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As StructureStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As TypeStatementSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Structure" keyword.
        ''' </summary>
        Public ReadOnly Property StructureKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StructureStatementSyntax)._structureKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StructureKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithStructureKeyword(structureKeyword as SyntaxToken) As StructureStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, structureKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' The name of the type being declared.
        ''' </summary>
        Public Shadows ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StructureStatementSyntax)._identifier, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetIdentifierCore() As SyntaxToken
            Return Me.Identifier
        End Function

        Friend Overrides Function WithIdentifierCore(identifier As SyntaxToken) As TypeStatementSyntax
            Return WithIdentifier(identifier)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As StructureStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.StructureKeyword, identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' If present, a type parameter list with generic parameters for this type. If no
        ''' generic parameters were present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property TypeParameterList As TypeParameterListSyntax
            Get
                Return GetRed(_typeParameterList, 4)
            End Get
        End Property

        Friend Overrides Function GetTypeParameterListCore() As TypeParameterListSyntax
            Return Me.TypeParameterList
        End Function

        Friend Overrides Function WithTypeParameterListCore(typeParameterList As TypeParameterListSyntax) As TypeStatementSyntax
            Return WithTypeParameterList(typeParameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithTypeParameterList(typeParameterList as TypeParameterListSyntax) As StructureStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.StructureKeyword, Me.Identifier, typeParameterList)
        End Function

        Public Shadows Function AddTypeParameterListParameters(ParamArray items As TypeParameterSyntax()) As StructureStatementSyntax
            Dim _child = If(Me.TypeParameterList IsNot Nothing, Me.TypeParameterList, SyntaxFactory.TypeParameterList())
            Return Me.WithTypeParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddTypeParameterListParametersCore(ParamArray items As TypeParameterSyntax()) As TypeStatementSyntax
            Return AddTypeParameterListParameters(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._typeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.TypeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitStructureStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitStructureStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="structureKeyword">
        ''' The value for the StructureKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeParameterList">
        ''' The value for the TypeParameterList property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, structureKeyword As SyntaxToken, identifier As SyntaxToken, typeParameterList As TypeParameterListSyntax) As StructureStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse structureKeyword <> Me.StructureKeyword OrElse identifier <> Me.Identifier OrElse typeParameterList IsNot Me.TypeParameterList Then
                Dim newNode = SyntaxFactory.StructureStatement(attributeLists, modifiers, structureKeyword, identifier, typeParameterList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning statement of a Interface declaration. This node always
    ''' appears as the Begin of a TypeBlock with Kind=InterfaceDeclarationBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InterfaceStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InterfaceStatementSyntax
        Inherits TypeStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, interfaceKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, typeParameterList As TypeParameterListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterfaceStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, interfaceKeyword, identifier, if(typeParameterList IsNot Nothing, DirectCast(typeParameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As TypeStatementSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As InterfaceStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.InterfaceKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As InterfaceStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As TypeStatementSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterfaceStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As TypeStatementSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As InterfaceStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.InterfaceKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As InterfaceStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As TypeStatementSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Interface" keyword.
        ''' </summary>
        Public ReadOnly Property InterfaceKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterfaceStatementSyntax)._interfaceKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the InterfaceKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithInterfaceKeyword(interfaceKeyword as SyntaxToken) As InterfaceStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, interfaceKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' The name of the type being declared.
        ''' </summary>
        Public Shadows ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterfaceStatementSyntax)._identifier, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetIdentifierCore() As SyntaxToken
            Return Me.Identifier
        End Function

        Friend Overrides Function WithIdentifierCore(identifier As SyntaxToken) As TypeStatementSyntax
            Return WithIdentifier(identifier)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As InterfaceStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.InterfaceKeyword, identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' If present, a type parameter list with generic parameters for this type. If no
        ''' generic parameters were present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property TypeParameterList As TypeParameterListSyntax
            Get
                Return GetRed(_typeParameterList, 4)
            End Get
        End Property

        Friend Overrides Function GetTypeParameterListCore() As TypeParameterListSyntax
            Return Me.TypeParameterList
        End Function

        Friend Overrides Function WithTypeParameterListCore(typeParameterList As TypeParameterListSyntax) As TypeStatementSyntax
            Return WithTypeParameterList(typeParameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithTypeParameterList(typeParameterList as TypeParameterListSyntax) As InterfaceStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.InterfaceKeyword, Me.Identifier, typeParameterList)
        End Function

        Public Shadows Function AddTypeParameterListParameters(ParamArray items As TypeParameterSyntax()) As InterfaceStatementSyntax
            Dim _child = If(Me.TypeParameterList IsNot Nothing, Me.TypeParameterList, SyntaxFactory.TypeParameterList())
            Return Me.WithTypeParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddTypeParameterListParametersCore(ParamArray items As TypeParameterSyntax()) As TypeStatementSyntax
            Return AddTypeParameterListParameters(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._typeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.TypeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInterfaceStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInterfaceStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="interfaceKeyword">
        ''' The value for the InterfaceKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeParameterList">
        ''' The value for the TypeParameterList property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, interfaceKeyword As SyntaxToken, identifier As SyntaxToken, typeParameterList As TypeParameterListSyntax) As InterfaceStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse interfaceKeyword <> Me.InterfaceKeyword OrElse identifier <> Me.Identifier OrElse typeParameterList IsNot Me.TypeParameterList Then
                Dim newNode = SyntaxFactory.InterfaceStatement(attributeLists, modifiers, interfaceKeyword, identifier, typeParameterList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning statement of a Class declaration. This node always
    ''' appears as the Begin of a TypeBlock with Kind=ClassDeclarationBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ClassStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ClassStatementSyntax
        Inherits TypeStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, classKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, typeParameterList As TypeParameterListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ClassStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, classKeyword, identifier, if(typeParameterList IsNot Nothing, DirectCast(typeParameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As TypeStatementSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As ClassStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.ClassKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As ClassStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As TypeStatementSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ClassStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As TypeStatementSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As ClassStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.ClassKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As ClassStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As TypeStatementSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Class" keyword.
        ''' </summary>
        Public ReadOnly Property ClassKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ClassStatementSyntax)._classKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ClassKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithClassKeyword(classKeyword as SyntaxToken) As ClassStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, classKeyword, Me.Identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' The name of the type being declared.
        ''' </summary>
        Public Shadows ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ClassStatementSyntax)._identifier, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetIdentifierCore() As SyntaxToken
            Return Me.Identifier
        End Function

        Friend Overrides Function WithIdentifierCore(identifier As SyntaxToken) As TypeStatementSyntax
            Return WithIdentifier(identifier)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As ClassStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.ClassKeyword, identifier, Me.TypeParameterList)
        End Function

        ''' <summary>
        ''' If present, a type parameter list with generic parameters for this type. If no
        ''' generic parameters were present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property TypeParameterList As TypeParameterListSyntax
            Get
                Return GetRed(_typeParameterList, 4)
            End Get
        End Property

        Friend Overrides Function GetTypeParameterListCore() As TypeParameterListSyntax
            Return Me.TypeParameterList
        End Function

        Friend Overrides Function WithTypeParameterListCore(typeParameterList As TypeParameterListSyntax) As TypeStatementSyntax
            Return WithTypeParameterList(typeParameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithTypeParameterList(typeParameterList as TypeParameterListSyntax) As ClassStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.ClassKeyword, Me.Identifier, typeParameterList)
        End Function

        Public Shadows Function AddTypeParameterListParameters(ParamArray items As TypeParameterSyntax()) As ClassStatementSyntax
            Dim _child = If(Me.TypeParameterList IsNot Nothing, Me.TypeParameterList, SyntaxFactory.TypeParameterList())
            Return Me.WithTypeParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddTypeParameterListParametersCore(ParamArray items As TypeParameterSyntax()) As TypeStatementSyntax
            Return AddTypeParameterListParameters(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._typeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.TypeParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitClassStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitClassStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="classKeyword">
        ''' The value for the ClassKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeParameterList">
        ''' The value for the TypeParameterList property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, classKeyword As SyntaxToken, identifier As SyntaxToken, typeParameterList As TypeParameterListSyntax) As ClassStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse classKeyword <> Me.ClassKeyword OrElse identifier <> Me.Identifier OrElse typeParameterList IsNot Me.TypeParameterList Then
                Dim newNode = SyntaxFactory.ClassStatement(attributeLists, modifiers, classKeyword, identifier, typeParameterList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning statement of an Enum declaration. This node always
    ''' appears as the Begin of an EnumBlock with Kind=EnumDeclarationBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EnumStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EnumStatementSyntax
        Inherits DeclarationStatementSyntax

        Friend _attributeLists as SyntaxNode
        Friend _underlyingType as AsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, enumKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, underlyingType As AsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, enumKeyword, identifier, if(underlyingType IsNot Nothing, DirectCast(underlyingType.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As EnumStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.EnumKeyword, Me.Identifier, Me.UnderlyingType)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As EnumStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As EnumStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.EnumKeyword, Me.Identifier, Me.UnderlyingType)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As EnumStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        ''' <summary>
        ''' The "Enum" keyword.
        ''' </summary>
        Public ReadOnly Property EnumKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumStatementSyntax)._enumKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EnumKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEnumKeyword(enumKeyword as SyntaxToken) As EnumStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, enumKeyword, Me.Identifier, Me.UnderlyingType)
        End Function

        ''' <summary>
        ''' The name of the enum being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumStatementSyntax)._identifier, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As EnumStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.EnumKeyword, identifier, Me.UnderlyingType)
        End Function

        ''' <summary>
        ''' Optional "As XXX" clause describing the underlying type of the enumeration. If
        ''' no As clause was specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property UnderlyingType As AsClauseSyntax
            Get
                Return GetRed(_underlyingType, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the UnderlyingType property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithUnderlyingType(underlyingType as AsClauseSyntax) As EnumStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.EnumKeyword, Me.Identifier, underlyingType)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._underlyingType
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.UnderlyingType
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEnumStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEnumStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="enumKeyword">
        ''' The value for the EnumKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="underlyingType">
        ''' The value for the UnderlyingType property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, enumKeyword As SyntaxToken, identifier As SyntaxToken, underlyingType As AsClauseSyntax) As EnumStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse enumKeyword <> Me.EnumKeyword OrElse identifier <> Me.Identifier OrElse underlyingType IsNot Me.UnderlyingType Then
                Dim newNode = SyntaxFactory.EnumStatement(attributeLists, modifiers, enumKeyword, identifier, underlyingType)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the type parameter list in a declaration.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypeParameterList"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypeParameterListSyntax
        Inherits VisualBasicSyntaxNode

        Friend _parameters as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, ofKeyword As InternalSyntax.KeywordSyntax, parameters As SyntaxNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax(kind, errors, annotations, openParenToken, ofKeyword, if(parameters IsNot Nothing, parameters.Green, Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As TypeParameterListSyntax
            return Update(openParenToken, Me.OfKeyword, Me.Parameters, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "Of" keyword.
        ''' </summary>
        Public ReadOnly Property OfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax)._ofKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOfKeyword(ofKeyword as SyntaxToken) As TypeParameterListSyntax
            return Update(Me.OpenParenToken, ofKeyword, Me.Parameters, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' A list of the type parameters. There must be at least one type parameter in the
        ''' list.
        ''' </summary>
        Public ReadOnly Property Parameters As SeparatedSyntaxList(Of TypeParameterSyntax)
            Get
                Dim listNode = GetRed(_parameters, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of TypeParameterSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Parameters property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameters(parameters as SeparatedSyntaxList(Of TypeParameterSyntax)) As TypeParameterListSyntax
            return Update(Me.OpenParenToken, Me.OfKeyword, parameters, Me.CloseParenToken)
        End Function

        Public Shadows Function AddParameters(ParamArray items As TypeParameterSyntax()) As TypeParameterListSyntax
            Return Me.WithParameters(Me.Parameters.AddRange(items))
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax)._closeParenToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As TypeParameterListSyntax
            return Update(Me.OpenParenToken, Me.OfKeyword, Me.Parameters, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._parameters
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return GetRed(_parameters, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypeParameterList(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypeParameterList(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="ofKeyword">
        ''' The value for the OfKeyword property.
        ''' </param>
        ''' <param name="parameters">
        ''' The value for the Parameters property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, ofKeyword As SyntaxToken, parameters As SeparatedSyntaxList(Of TypeParameterSyntax), closeParenToken As SyntaxToken) As TypeParameterListSyntax
            If openParenToken <> Me.OpenParenToken OrElse ofKeyword <> Me.OfKeyword OrElse parameters <> Me.Parameters OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.TypeParameterList(openParenToken, ofKeyword, parameters, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a type parameter on a generic type declaration.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypeParameter"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypeParameterSyntax
        Inherits VisualBasicSyntaxNode

        Friend _typeParameterConstraintClause as TypeParameterConstraintClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), varianceKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, typeParameterConstraintClause As TypeParameterConstraintClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterSyntax(kind, errors, annotations, varianceKeyword, identifier, if(typeParameterConstraintClause IsNot Nothing, DirectCast(typeParameterConstraintClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterConstraintClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' Represents the "In" or "Out" variance keyword on a type parameter, if present.
        ''' If no variance modifier was present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property VarianceKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterSyntax)._varianceKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the VarianceKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithVarianceKeyword(varianceKeyword as SyntaxToken) As TypeParameterSyntax
            return Update(varianceKeyword, Me.Identifier, Me.TypeParameterConstraintClause)
        End Function

        ''' <summary>
        ''' The name of the type parameter
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterSyntax)._identifier, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As TypeParameterSyntax
            return Update(Me.VarianceKeyword, identifier, Me.TypeParameterConstraintClause)
        End Function

        ''' <summary>
        ''' The "As" keyword, if any type constraints were supplied. If no type constraints
        ''' were supplied, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property TypeParameterConstraintClause As TypeParameterConstraintClauseSyntax
            Get
                Return GetRed(_typeParameterConstraintClause, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterConstraintClause property changed
        ''' to the specified value. Returns this instance if the specified value is the
        ''' same as the current value.
        ''' </summary>
        Public Shadows Function WithTypeParameterConstraintClause(typeParameterConstraintClause as TypeParameterConstraintClauseSyntax) As TypeParameterSyntax
            return Update(Me.VarianceKeyword, Me.Identifier, typeParameterConstraintClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._typeParameterConstraintClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.TypeParameterConstraintClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypeParameter(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypeParameter(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="varianceKeyword">
        ''' The value for the VarianceKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeParameterConstraintClause">
        ''' The value for the TypeParameterConstraintClause property.
        ''' </param>
        Public Function Update(varianceKeyword As SyntaxToken, identifier As SyntaxToken, typeParameterConstraintClause As TypeParameterConstraintClauseSyntax) As TypeParameterSyntax
            If varianceKeyword <> Me.VarianceKeyword OrElse identifier <> Me.Identifier OrElse typeParameterConstraintClause IsNot Me.TypeParameterConstraintClause Then
                Dim newNode = SyntaxFactory.TypeParameter(varianceKeyword, identifier, typeParameterConstraintClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' An abstract node class that is the parent of classes that describe type
    ''' parameter constraint clauses.
    ''' </summary>
    Public MustInherit Class TypeParameterConstraintClauseSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' One of the type parameter constraints clauses. This represents a constraint
    ''' clause in the form of "As Constraint".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypeParameterSingleConstraintClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypeParameterSingleConstraintClauseSyntax
        Inherits TypeParameterConstraintClauseSyntax

        Friend _constraint as ConstraintSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), asKeyword As InternalSyntax.KeywordSyntax, constraint As ConstraintSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterSingleConstraintClauseSyntax(kind, errors, annotations, asKeyword, DirectCast(constraint.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConstraintSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "As" keyword, if any type constraints were supplied. If no type constraints
        ''' were supplied, Nothing is returned.
        ''' </summary>
        Public ReadOnly Property AsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterSingleConstraintClauseSyntax)._asKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsKeyword(asKeyword as SyntaxToken) As TypeParameterSingleConstraintClauseSyntax
            return Update(asKeyword, Me.Constraint)
        End Function

        ''' <summary>
        ''' A list of the supplied constraints. If no constraints were supplied, Nothing is
        ''' returned.
        ''' </summary>
        Public ReadOnly Property Constraint As ConstraintSyntax
            Get
                Return GetRed(_constraint, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Constraint property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithConstraint(constraint as ConstraintSyntax) As TypeParameterSingleConstraintClauseSyntax
            return Update(Me.AsKeyword, constraint)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._constraint
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Constraint
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypeParameterSingleConstraintClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypeParameterSingleConstraintClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="asKeyword">
        ''' The value for the AsKeyword property.
        ''' </param>
        ''' <param name="constraint">
        ''' The value for the Constraint property.
        ''' </param>
        Public Function Update(asKeyword As SyntaxToken, constraint As ConstraintSyntax) As TypeParameterSingleConstraintClauseSyntax
            If asKeyword <> Me.AsKeyword OrElse constraint IsNot Me.Constraint Then
                Dim newNode = SyntaxFactory.TypeParameterSingleConstraintClause(asKeyword, constraint)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' One of the type parameter constraints clauses. This represents a constraint
    ''' clause in the form of "As { Constraints }".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypeParameterMultipleConstraintClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypeParameterMultipleConstraintClauseSyntax
        Inherits TypeParameterConstraintClauseSyntax

        Friend _constraints as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), asKeyword As InternalSyntax.KeywordSyntax, openBraceToken As InternalSyntax.PunctuationSyntax, constraints As SyntaxNode, closeBraceToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterMultipleConstraintClauseSyntax(kind, errors, annotations, asKeyword, openBraceToken, if(constraints IsNot Nothing, constraints.Green, Nothing), closeBraceToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "As" keyword.
        ''' </summary>
        Public ReadOnly Property AsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterMultipleConstraintClauseSyntax)._asKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsKeyword(asKeyword as SyntaxToken) As TypeParameterMultipleConstraintClauseSyntax
            return Update(asKeyword, Me.OpenBraceToken, Me.Constraints, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' The "{" token.
        ''' </summary>
        Public ReadOnly Property OpenBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterMultipleConstraintClauseSyntax)._openBraceToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenBraceToken(openBraceToken as SyntaxToken) As TypeParameterMultipleConstraintClauseSyntax
            return Update(Me.AsKeyword, openBraceToken, Me.Constraints, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' A list of the supplied constraints. If no constraints were supplied, an empty
        ''' list is returned.
        ''' </summary>
        Public ReadOnly Property Constraints As SeparatedSyntaxList(Of ConstraintSyntax)
            Get
                Dim listNode = GetRed(_constraints, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ConstraintSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Constraints property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithConstraints(constraints as SeparatedSyntaxList(Of ConstraintSyntax)) As TypeParameterMultipleConstraintClauseSyntax
            return Update(Me.AsKeyword, Me.OpenBraceToken, constraints, Me.CloseBraceToken)
        End Function

        Public Shadows Function AddConstraints(ParamArray items As ConstraintSyntax()) As TypeParameterMultipleConstraintClauseSyntax
            Return Me.WithConstraints(Me.Constraints.AddRange(items))
        End Function

        ''' <summary>
        ''' The "}" token.
        ''' </summary>
        Public ReadOnly Property CloseBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterMultipleConstraintClauseSyntax)._closeBraceToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseBraceToken(closeBraceToken as SyntaxToken) As TypeParameterMultipleConstraintClauseSyntax
            return Update(Me.AsKeyword, Me.OpenBraceToken, Me.Constraints, closeBraceToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._constraints
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return GetRed(_constraints, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypeParameterMultipleConstraintClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypeParameterMultipleConstraintClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="asKeyword">
        ''' The value for the AsKeyword property.
        ''' </param>
        ''' <param name="openBraceToken">
        ''' The value for the OpenBraceToken property.
        ''' </param>
        ''' <param name="constraints">
        ''' The value for the Constraints property.
        ''' </param>
        ''' <param name="closeBraceToken">
        ''' The value for the CloseBraceToken property.
        ''' </param>
        Public Function Update(asKeyword As SyntaxToken, openBraceToken As SyntaxToken, constraints As SeparatedSyntaxList(Of ConstraintSyntax), closeBraceToken As SyntaxToken) As TypeParameterMultipleConstraintClauseSyntax
            If asKeyword <> Me.AsKeyword OrElse openBraceToken <> Me.OpenBraceToken OrElse constraints <> Me.Constraints OrElse closeBraceToken <> Me.CloseBraceToken Then
                Dim newNode = SyntaxFactory.TypeParameterMultipleConstraintClause(asKeyword, openBraceToken, constraints, closeBraceToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' An abstract node class that is the parent of classes that describe type
    ''' parameter constraints.
    ''' </summary>
    Public MustInherit Class ConstraintSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' One of the special type parameter constraints: New, Class or Structure. Which
    ''' kind of special constraint it is can be obtained from the Kind property and is
    ''' one of: NewConstraint, ReferenceConstraint or ValueConstraint.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NewConstraint"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ClassConstraint"/></description></item>
    ''' <item><description><see cref="SyntaxKind.StructureConstraint"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SpecialConstraintSyntax
        Inherits ConstraintSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), constraintKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SpecialConstraintSyntax(kind, errors, annotations, constraintKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "New", "Class" or "Structure" keyword that denotes the kind of special
        ''' constraint.
        ''' </summary>
        Public ReadOnly Property ConstraintKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SpecialConstraintSyntax)._constraintKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ConstraintKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithConstraintKeyword(constraintKeyword as SyntaxToken) As SpecialConstraintSyntax
            return Update(Me.Kind, constraintKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSpecialConstraint(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSpecialConstraint(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="constraintKeyword">
        ''' The value for the ConstraintKeyword property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, constraintKeyword As SyntaxToken) As SpecialConstraintSyntax
            If kind <> Me.Kind OrElse constraintKeyword <> Me.ConstraintKeyword Then
                Dim newNode = SyntaxFactory.SpecialConstraint(kind, constraintKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a type parameter constraint that is a type.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypeConstraint"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypeConstraintSyntax
        Inherits ConstraintSyntax

        Friend _type as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), type As TypeSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeConstraintSyntax(kind, errors, annotations, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The type describing the constraint.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRedAtZero(_type)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As TypeConstraintSyntax
            return Update(type)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me._type
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me.Type
            Else
                Return Nothing
            End If
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypeConstraint(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypeConstraint(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        Public Function Update(type As TypeSyntax) As TypeConstraintSyntax
            If type IsNot Me.Type Then
                Dim newNode = SyntaxFactory.TypeConstraint(type)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a name and value in an EnumDeclarationBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EnumMemberDeclaration"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EnumMemberDeclarationSyntax
        Inherits DeclarationStatementSyntax

        Friend _attributeLists as SyntaxNode
        Friend _initializer as EqualsValueSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, identifier As InternalSyntax.IdentifierTokenSyntax, initializer As EqualsValueSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumMemberDeclarationSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), identifier, if(initializer IsNot Nothing, DirectCast(initializer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EqualsValueSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As EnumMemberDeclarationSyntax
            return Update(attributeLists, Me.Identifier, Me.Initializer)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As EnumMemberDeclarationSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnumMemberDeclarationSyntax)._identifier, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As EnumMemberDeclarationSyntax
            return Update(Me.AttributeLists, identifier, Me.Initializer)
        End Function

        ''' <summary>
        ''' An optional value for the enum member.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Initializer As EqualsValueSyntax
            Get
                Return GetRed(_initializer, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializer property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializer(initializer as EqualsValueSyntax) As EnumMemberDeclarationSyntax
            return Update(Me.AttributeLists, Me.Identifier, initializer)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 2
                    Return Me._initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 2
                    Return Me.Initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEnumMemberDeclaration(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEnumMemberDeclaration(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="initializer">
        ''' The value for the Initializer property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), identifier As SyntaxToken, initializer As EqualsValueSyntax) As EnumMemberDeclarationSyntax
            If attributeLists <> Me.AttributeLists OrElse identifier <> Me.Identifier OrElse initializer IsNot Me.Initializer Then
                Dim newNode = SyntaxFactory.EnumMemberDeclaration(attributeLists, identifier, initializer)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a block member declaration: A declaration that has a beginning
    ''' declaration, a body of executable statements and an end statement. Examples
    ''' include methods, constructors, operators, property accessors and custom event
    ''' accessors.
    ''' </summary>
    Public MustInherit Class MethodBlockBaseSyntax
        Inherits DeclarationStatementSyntax

        Friend _statements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The statements contained in the block statement. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Return Me.GetStatementsCore()
            End Get
        End Property

        Friend Overridable Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Dim listNode = GetRedAtZero(_statements)
            Return new SyntaxList(Of StatementSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithStatements(statements As SyntaxList(Of StatementSyntax)) As MethodBlockBaseSyntax
            Return WithStatementsCore(statements)
        End Function
        Friend MustOverride Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As MethodBlockBaseSyntax

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As MethodBlockBaseSyntax
            Return AddStatementsCore(items)
        End Function
        Friend MustOverride Function AddStatementsCore(ParamArray items As StatementSyntax()) As MethodBlockBaseSyntax
    End Class

    ''' <summary>
    ''' Represents a Function or Sub block declaration: A declaration that has a
    ''' beginning declaration, a body of executable statements and an end statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SubBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.FunctionBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MethodBlockSyntax
        Inherits MethodBlockBaseSyntax

        Friend _subOrFunctionStatement as MethodStatementSyntax
        Friend _endSubOrFunctionStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), subOrFunctionStatement As MethodStatementSyntax, statements As SyntaxNode, endSubOrFunctionStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MethodBlockSyntax(kind, errors, annotations, DirectCast(subOrFunctionStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MethodStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endSubOrFunctionStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Sub" or "Function" statement that begins the block.
        ''' </summary>
        Public ReadOnly Property SubOrFunctionStatement As MethodStatementSyntax
            Get
                Return GetRedAtZero(_subOrFunctionStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubOrFunctionStatement(subOrFunctionStatement as MethodStatementSyntax) As MethodBlockSyntax
            return Update(Me.Kind, subOrFunctionStatement, Me.Statements, Me.EndSubOrFunctionStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the block statement. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Return Me.Statements
        End Function

        Friend Overrides Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As MethodBlockBaseSyntax
            Return WithStatements(statements)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As MethodBlockSyntax
            return Update(Me.Kind, Me.SubOrFunctionStatement, statements, Me.EndSubOrFunctionStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As MethodBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function AddStatementsCore(ParamArray items As StatementSyntax()) As MethodBlockBaseSyntax
            Return AddStatements(items)
        End Function

        ''' <summary>
        ''' The "End Sub" or "End Function" statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndSubOrFunctionStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endSubOrFunctionStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndSubOrFunctionStatement property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithEndSubOrFunctionStatement(endSubOrFunctionStatement as EndBlockStatementSyntax) As MethodBlockSyntax
            return Update(Me.Kind, Me.SubOrFunctionStatement, Me.Statements, endSubOrFunctionStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._subOrFunctionStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endSubOrFunctionStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.SubOrFunctionStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndSubOrFunctionStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMethodBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMethodBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="subOrFunctionStatement">
        ''' The value for the SubOrFunctionStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endSubOrFunctionStatement">
        ''' The value for the EndSubOrFunctionStatement property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, subOrFunctionStatement As MethodStatementSyntax, statements As SyntaxList(of StatementSyntax), endSubOrFunctionStatement As EndBlockStatementSyntax) As MethodBlockSyntax
            If kind <> Me.Kind OrElse subOrFunctionStatement IsNot Me.SubOrFunctionStatement OrElse statements <> Me.Statements OrElse endSubOrFunctionStatement IsNot Me.EndSubOrFunctionStatement Then
                Dim newNode = SyntaxFactory.MethodBlock(kind, subOrFunctionStatement, statements, endSubOrFunctionStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a constructor block declaration: A declaration that has a beginning
    ''' declaration, a body of executable statements and an end statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ConstructorBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ConstructorBlockSyntax
        Inherits MethodBlockBaseSyntax

        Friend _subNewStatement as SubNewStatementSyntax
        Friend _endSubStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), subNewStatement As SubNewStatementSyntax, statements As SyntaxNode, endSubStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConstructorBlockSyntax(kind, errors, annotations, DirectCast(subNewStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SubNewStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endSubStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Sub New" statement that begins the block.
        ''' </summary>
        Public ReadOnly Property SubNewStatement As SubNewStatementSyntax
            Get
                Return GetRedAtZero(_subNewStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SubNewStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubNewStatement(subNewStatement as SubNewStatementSyntax) As ConstructorBlockSyntax
            return Update(subNewStatement, Me.Statements, Me.EndSubStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the block statement. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Return Me.Statements
        End Function

        Friend Overrides Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As MethodBlockBaseSyntax
            Return WithStatements(statements)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As ConstructorBlockSyntax
            return Update(Me.SubNewStatement, statements, Me.EndSubStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As ConstructorBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function AddStatementsCore(ParamArray items As StatementSyntax()) As MethodBlockBaseSyntax
            Return AddStatements(items)
        End Function

        ''' <summary>
        ''' The "End Sub" statement that ends the block declaration.
        ''' </summary>
        Public ReadOnly Property EndSubStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endSubStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndSubStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndSubStatement(endSubStatement as EndBlockStatementSyntax) As ConstructorBlockSyntax
            return Update(Me.SubNewStatement, Me.Statements, endSubStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._subNewStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endSubStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.SubNewStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndSubStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitConstructorBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitConstructorBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="subNewStatement">
        ''' The value for the SubNewStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endSubStatement">
        ''' The value for the EndSubStatement property.
        ''' </param>
        Public Function Update(subNewStatement As SubNewStatementSyntax, statements As SyntaxList(of StatementSyntax), endSubStatement As EndBlockStatementSyntax) As ConstructorBlockSyntax
            If subNewStatement IsNot Me.SubNewStatement OrElse statements <> Me.Statements OrElse endSubStatement IsNot Me.EndSubStatement Then
                Dim newNode = SyntaxFactory.ConstructorBlock(subNewStatement, statements, endSubStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an Operator block member declaration: A declaration that has a
    ''' beginning declaration, a body of executable statements and an end statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.OperatorBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OperatorBlockSyntax
        Inherits MethodBlockBaseSyntax

        Friend _operatorStatement as OperatorStatementSyntax
        Friend _endOperatorStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), operatorStatement As OperatorStatementSyntax, statements As SyntaxNode, endOperatorStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OperatorBlockSyntax(kind, errors, annotations, DirectCast(operatorStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OperatorStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endOperatorStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Operator" statement that begins the block.
        ''' </summary>
        Public ReadOnly Property OperatorStatement As OperatorStatementSyntax
            Get
                Return GetRedAtZero(_operatorStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOperatorStatement(operatorStatement as OperatorStatementSyntax) As OperatorBlockSyntax
            return Update(operatorStatement, Me.Statements, Me.EndOperatorStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the block statement. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Return Me.Statements
        End Function

        Friend Overrides Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As MethodBlockBaseSyntax
            Return WithStatements(statements)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As OperatorBlockSyntax
            return Update(Me.OperatorStatement, statements, Me.EndOperatorStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As OperatorBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function AddStatementsCore(ParamArray items As StatementSyntax()) As MethodBlockBaseSyntax
            Return AddStatements(items)
        End Function

        ''' <summary>
        ''' The "End Operator" statement that ends the block declaration.
        ''' </summary>
        Public ReadOnly Property EndOperatorStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endOperatorStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndOperatorStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndOperatorStatement(endOperatorStatement as EndBlockStatementSyntax) As OperatorBlockSyntax
            return Update(Me.OperatorStatement, Me.Statements, endOperatorStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._operatorStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endOperatorStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.OperatorStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndOperatorStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOperatorBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOperatorBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="operatorStatement">
        ''' The value for the OperatorStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endOperatorStatement">
        ''' The value for the EndOperatorStatement property.
        ''' </param>
        Public Function Update(operatorStatement As OperatorStatementSyntax, statements As SyntaxList(of StatementSyntax), endOperatorStatement As EndBlockStatementSyntax) As OperatorBlockSyntax
            If operatorStatement IsNot Me.OperatorStatement OrElse statements <> Me.Statements OrElse endOperatorStatement IsNot Me.EndOperatorStatement Then
                Dim newNode = SyntaxFactory.OperatorBlock(operatorStatement, statements, endOperatorStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an accessor block member declaration: A declaration that has a
    ''' beginning declaration, a body of executable statements and an end statement.
    ''' Examples include property accessors and custom event accessors.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GetAccessorBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.SetAccessorBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.AddHandlerAccessorBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.RemoveHandlerAccessorBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.RaiseEventAccessorBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AccessorBlockSyntax
        Inherits MethodBlockBaseSyntax

        Friend _accessorStatement as AccessorStatementSyntax
        Friend _endAccessorStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), accessorStatement As AccessorStatementSyntax, statements As SyntaxNode, endAccessorStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AccessorBlockSyntax(kind, errors, annotations, DirectCast(accessorStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AccessorStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endAccessorStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Get", "Set", "AddHandler", "RemoveHandler", or "RaiseEvent" statement that
        ''' begins the accessor block.
        ''' </summary>
        Public ReadOnly Property AccessorStatement As AccessorStatementSyntax
            Get
                Return GetRedAtZero(_accessorStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AccessorStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAccessorStatement(accessorStatement as AccessorStatementSyntax) As AccessorBlockSyntax
            return Update(Me.Kind, accessorStatement, Me.Statements, Me.EndAccessorStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the block statement. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Return Me.Statements
        End Function

        Friend Overrides Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As MethodBlockBaseSyntax
            Return WithStatements(statements)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As AccessorBlockSyntax
            return Update(Me.Kind, Me.AccessorStatement, statements, Me.EndAccessorStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As AccessorBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function AddStatementsCore(ParamArray items As StatementSyntax()) As MethodBlockBaseSyntax
            Return AddStatements(items)
        End Function

        ''' <summary>
        ''' The "End Get", "End Set", "End AddHandler", "End RemoveHandler", or "End
        ''' RaiseEvent" statement that ends the accessor block.
        ''' </summary>
        Public ReadOnly Property EndAccessorStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endAccessorStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndAccessorStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndAccessorStatement(endAccessorStatement as EndBlockStatementSyntax) As AccessorBlockSyntax
            return Update(Me.Kind, Me.AccessorStatement, Me.Statements, endAccessorStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._accessorStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endAccessorStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.AccessorStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndAccessorStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAccessorBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAccessorBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="accessorStatement">
        ''' The value for the AccessorStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endAccessorStatement">
        ''' The value for the EndAccessorStatement property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, accessorStatement As AccessorStatementSyntax, statements As SyntaxList(of StatementSyntax), endAccessorStatement As EndBlockStatementSyntax) As AccessorBlockSyntax
            If kind <> Me.Kind OrElse accessorStatement IsNot Me.AccessorStatement OrElse statements <> Me.Statements OrElse endAccessorStatement IsNot Me.EndAccessorStatement Then
                Dim newNode = SyntaxFactory.AccessorBlock(kind, accessorStatement, statements, endAccessorStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a block property declaration: A declaration that has a beginning
    ''' declaration, some get or set accessor blocks and an end statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.PropertyBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class PropertyBlockSyntax
        Inherits DeclarationStatementSyntax

        Friend _propertyStatement as PropertyStatementSyntax
        Friend _accessors as SyntaxNode
        Friend _endPropertyStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), propertyStatement As PropertyStatementSyntax, accessors As SyntaxNode, endPropertyStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PropertyBlockSyntax(kind, errors, annotations, DirectCast(propertyStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PropertyStatementSyntax), if(accessors IsNot Nothing, accessors.Green, Nothing), DirectCast(endPropertyStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The property declaration that begins the block.
        ''' </summary>
        Public ReadOnly Property PropertyStatement As PropertyStatementSyntax
            Get
                Return GetRedAtZero(_propertyStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the PropertyStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithPropertyStatement(propertyStatement as PropertyStatementSyntax) As PropertyBlockSyntax
            return Update(propertyStatement, Me.Accessors, Me.EndPropertyStatement)
        End Function

        ''' <summary>
        ''' The accessor blocks contained in the property, between the Property and the End
        ''' Property statements.
        ''' </summary>
        Public ReadOnly Property Accessors As SyntaxList(Of AccessorBlockSyntax)
            Get
                Dim listNode = GetRed(_accessors, 1)
                Return new SyntaxList(Of AccessorBlockSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Accessors property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAccessors(accessors as SyntaxList(Of AccessorBlockSyntax)) As PropertyBlockSyntax
            return Update(Me.PropertyStatement, accessors, Me.EndPropertyStatement)
        End Function

        Public Shadows Function AddAccessors(ParamArray items As AccessorBlockSyntax()) As PropertyBlockSyntax
            Return Me.WithAccessors(Me.Accessors.AddRange(items))
        End Function

        ''' <summary>
        ''' The End Property statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndPropertyStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endPropertyStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndPropertyStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndPropertyStatement(endPropertyStatement as EndBlockStatementSyntax) As PropertyBlockSyntax
            return Update(Me.PropertyStatement, Me.Accessors, endPropertyStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._propertyStatement
                Case 1
                    Return Me._accessors
                Case 2
                    Return Me._endPropertyStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.PropertyStatement
                Case 1
                    Return GetRed(_accessors, 1)
                Case 2
                    Return Me.EndPropertyStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitPropertyBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitPropertyBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="propertyStatement">
        ''' The value for the PropertyStatement property.
        ''' </param>
        ''' <param name="accessors">
        ''' The value for the Accessors property.
        ''' </param>
        ''' <param name="endPropertyStatement">
        ''' The value for the EndPropertyStatement property.
        ''' </param>
        Public Function Update(propertyStatement As PropertyStatementSyntax, accessors As SyntaxList(of AccessorBlockSyntax), endPropertyStatement As EndBlockStatementSyntax) As PropertyBlockSyntax
            If propertyStatement IsNot Me.PropertyStatement OrElse accessors <> Me.Accessors OrElse endPropertyStatement IsNot Me.EndPropertyStatement Then
                Dim newNode = SyntaxFactory.PropertyBlock(propertyStatement, accessors, endPropertyStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a custom event declaration: A declaration that has a beginning event
    ''' declaration, some accessor blocks and an end statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EventBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EventBlockSyntax
        Inherits DeclarationStatementSyntax

        Friend _eventStatement as EventStatementSyntax
        Friend _accessors as SyntaxNode
        Friend _endEventStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), eventStatement As EventStatementSyntax, accessors As SyntaxNode, endEventStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventBlockSyntax(kind, errors, annotations, DirectCast(eventStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventStatementSyntax), if(accessors IsNot Nothing, accessors.Green, Nothing), DirectCast(endEventStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The event declaration that begins the block.
        ''' </summary>
        Public ReadOnly Property EventStatement As EventStatementSyntax
            Get
                Return GetRedAtZero(_eventStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EventStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEventStatement(eventStatement as EventStatementSyntax) As EventBlockSyntax
            return Update(eventStatement, Me.Accessors, Me.EndEventStatement)
        End Function

        ''' <summary>
        ''' The accessor blocks contained in the custom event declaration, between the
        ''' Event statement and the End Event statement.
        ''' </summary>
        Public ReadOnly Property Accessors As SyntaxList(Of AccessorBlockSyntax)
            Get
                Dim listNode = GetRed(_accessors, 1)
                Return new SyntaxList(Of AccessorBlockSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Accessors property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAccessors(accessors as SyntaxList(Of AccessorBlockSyntax)) As EventBlockSyntax
            return Update(Me.EventStatement, accessors, Me.EndEventStatement)
        End Function

        Public Shadows Function AddAccessors(ParamArray items As AccessorBlockSyntax()) As EventBlockSyntax
            Return Me.WithAccessors(Me.Accessors.AddRange(items))
        End Function

        ''' <summary>
        ''' The End Event statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndEventStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endEventStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndEventStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndEventStatement(endEventStatement as EndBlockStatementSyntax) As EventBlockSyntax
            return Update(Me.EventStatement, Me.Accessors, endEventStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._eventStatement
                Case 1
                    Return Me._accessors
                Case 2
                    Return Me._endEventStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.EventStatement
                Case 1
                    Return GetRed(_accessors, 1)
                Case 2
                    Return Me.EndEventStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEventBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEventBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="eventStatement">
        ''' The value for the EventStatement property.
        ''' </param>
        ''' <param name="accessors">
        ''' The value for the Accessors property.
        ''' </param>
        ''' <param name="endEventStatement">
        ''' The value for the EndEventStatement property.
        ''' </param>
        Public Function Update(eventStatement As EventStatementSyntax, accessors As SyntaxList(of AccessorBlockSyntax), endEventStatement As EndBlockStatementSyntax) As EventBlockSyntax
            If eventStatement IsNot Me.EventStatement OrElse accessors <> Me.Accessors OrElse endEventStatement IsNot Me.EndEventStatement Then
                Dim newNode = SyntaxFactory.EventBlock(eventStatement, accessors, endEventStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' An abstract node class that is the parent for declarations that are
    ''' "method-like"; i.e., that have a parameter list and return type. This includes
    ''' methods, constructors, properties, events, operators, declares, delegates,
    ''' property accessors and custom event accessors.
    ''' </summary>
    Public MustInherit Class MethodBaseSyntax
        Inherits DeclarationStatementSyntax

        Friend _attributeLists as SyntaxNode
        Friend _parameterList as ParameterListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Return Me.GetAttributeListsCore()
            End Get
        End Property

        Friend Overridable Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Dim listNode = GetRedAtZero(_attributeLists)
            Return new SyntaxList(Of AttributeListSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithAttributeLists(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeListsCore(attributeLists)
        End Function
        Friend MustOverride Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeListsCore(items)
        End Function
        Friend MustOverride Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Return Me.GetModifiersCore()
            End Get
        End Property

        Friend Overridable Function GetModifiersCore() As SyntaxTokenList
            Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MethodBaseSyntax)._modifiers
            If slot IsNot Nothing
                return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End If
            Return Nothing
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithModifiers(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiersCore(modifiers)
        End Function
        Friend MustOverride Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiersCore(items)
        End Function
        Friend MustOverride Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return Me.GetParameterListCore()
            End Get
        End Property

        Friend Overridable Function GetParameterListCore() As ParameterListSyntax
            Return GetRed(_parameterList, 2)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithParameterList(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterListCore(parameterList)
        End Function
        Friend MustOverride Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParametersCore(items)
        End Function
        Friend MustOverride Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax

    End Class

    ''' <summary>
    ''' Represents the parameter list in a method declaration.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ParameterList"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ParameterListSyntax
        Inherits VisualBasicSyntaxNode

        Friend _parameters as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, parameters As SyntaxNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax(kind, errors, annotations, openParenToken, if(parameters IsNot Nothing, parameters.Green, Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token that introduces the parameter list. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As ParameterListSyntax
            return Update(openParenToken, Me.Parameters, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The list of parameters. If no parameter list was present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Parameters As SeparatedSyntaxList(Of ParameterSyntax)
            Get
                Dim listNode = GetRed(_parameters, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ParameterSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Parameters property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameters(parameters as SeparatedSyntaxList(Of ParameterSyntax)) As ParameterListSyntax
            return Update(Me.OpenParenToken, parameters, Me.CloseParenToken)
        End Function

        Public Shadows Function AddParameters(ParamArray items As ParameterSyntax()) As ParameterListSyntax
            Return Me.WithParameters(Me.Parameters.AddRange(items))
        End Function

        ''' <summary>
        ''' The ")" token that concludes the parameter list. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax)._closeParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As ParameterListSyntax
            return Update(Me.OpenParenToken, Me.Parameters, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._parameters
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_parameters, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitParameterList(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitParameterList(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="parameters">
        ''' The value for the Parameters property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, parameters As SeparatedSyntaxList(Of ParameterSyntax), closeParenToken As SyntaxToken) As ParameterListSyntax
            If openParenToken <> Me.OpenParenToken OrElse parameters <> Me.Parameters OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.ParameterList(openParenToken, parameters, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The statement that declares a Sub or Function. If this method has a body, this
    ''' statement will be the Begin of a BlockStatement with
    ''' Kind=MethodDeclarationBlock, and the body of the method will be the Body of
    ''' that BlockStatement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SubStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.FunctionStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MethodStatementSyntax
        Inherits MethodBaseSyntax

        Friend _typeParameterList as TypeParameterListSyntax
        Friend _asClause as SimpleAsClauseSyntax
        Friend _handlesClause as HandlesClauseSyntax
        Friend _implementsClause as ImplementsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, subOrFunctionKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, typeParameterList As TypeParameterListSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax, handlesClause As HandlesClauseSyntax, implementsClause As ImplementsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MethodStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, subOrFunctionKeyword, identifier, if(typeParameterList IsNot Nothing, DirectCast(typeParameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax), Nothing), if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing), if(handlesClause IsNot Nothing, DirectCast(handlesClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.HandlesClauseSyntax), Nothing), if(implementsClause IsNot Nothing, DirectCast(implementsClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImplementsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As MethodStatementSyntax
            return Update(Me.Kind, attributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause, Me.HandlesClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As MethodStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MethodStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, modifiers, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause, Me.HandlesClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As MethodStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Sub" or "Function" keyword that introduces this method declaration.
        ''' </summary>
        Public ReadOnly Property SubOrFunctionKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MethodStatementSyntax)._subOrFunctionKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubOrFunctionKeyword(subOrFunctionKeyword as SyntaxToken) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, subOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause, Me.HandlesClause, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' The name of the method being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MethodStatementSyntax)._identifier, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause, Me.HandlesClause, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' If present, a type parameter list with generic type parameters for this method.
        ''' If no generic type parameters were present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property TypeParameterList As TypeParameterListSyntax
            Get
                Return GetRed(_typeParameterList, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithTypeParameterList(typeParameterList as TypeParameterListSyntax) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.Identifier, typeParameterList, Me.ParameterList, Me.AsClause, Me.HandlesClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddTypeParameterListParameters(ParamArray items As TypeParameterSyntax()) As MethodStatementSyntax
            Dim _child = If(Me.TypeParameterList IsNot Nothing, Me.TypeParameterList, SyntaxFactory.TypeParameterList())
            Return Me.WithTypeParameterList(_child.AddParameters(items))
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 5)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, parameterList, Me.AsClause, Me.HandlesClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As MethodStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type. If no As clause was present,
        ''' Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 6)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, asClause, Me.HandlesClause, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' If present, a Handles clause indicated the events that this method handles.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property HandlesClause As HandlesClauseSyntax
            Get
                Return GetRed(_handlesClause, 7)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the HandlesClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHandlesClause(handlesClause as HandlesClauseSyntax) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause, handlesClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddHandlesClauseEvents(ParamArray items As HandlesClauseItemSyntax()) As MethodStatementSyntax
            Dim _child = If(Me.HandlesClause IsNot Nothing, Me.HandlesClause, SyntaxFactory.HandlesClause())
            Return Me.WithHandlesClause(_child.AddEvents(items))
        End Function

        ''' <summary>
        ''' If present, an Implements clause indicated the interface methods that this
        ''' method implements.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ImplementsClause As ImplementsClauseSyntax
            Get
                Return GetRed(_implementsClause, 8)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ImplementsClause property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithImplementsClause(implementsClause as ImplementsClauseSyntax) As MethodStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause, Me.HandlesClause, implementsClause)
        End Function

        Public Shadows Function AddImplementsClauseInterfaceMembers(ParamArray items As QualifiedNameSyntax()) As MethodStatementSyntax
            Dim _child = If(Me.ImplementsClause IsNot Nothing, Me.ImplementsClause, SyntaxFactory.ImplementsClause())
            Return Me.WithImplementsClause(_child.AddInterfaceMembers(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._typeParameterList
                Case 5
                    Return Me._parameterList
                Case 6
                    Return Me._asClause
                Case 7
                    Return Me._handlesClause
                Case 8
                    Return Me._implementsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.TypeParameterList
                Case 5
                    Return Me.ParameterList
                Case 6
                    Return Me.AsClause
                Case 7
                    Return Me.HandlesClause
                Case 8
                    Return Me.ImplementsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMethodStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMethodStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="subOrFunctionKeyword">
        ''' The value for the SubOrFunctionKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeParameterList">
        ''' The value for the TypeParameterList property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="handlesClause">
        ''' The value for the HandlesClause property.
        ''' </param>
        ''' <param name="implementsClause">
        ''' The value for the ImplementsClause property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, subOrFunctionKeyword As SyntaxToken, identifier As SyntaxToken, typeParameterList As TypeParameterListSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax, handlesClause As HandlesClauseSyntax, implementsClause As ImplementsClauseSyntax) As MethodStatementSyntax
            If kind <> Me.Kind OrElse attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse subOrFunctionKeyword <> Me.SubOrFunctionKeyword OrElse identifier <> Me.Identifier OrElse typeParameterList IsNot Me.TypeParameterList OrElse parameterList IsNot Me.ParameterList OrElse asClause IsNot Me.AsClause OrElse handlesClause IsNot Me.HandlesClause OrElse implementsClause IsNot Me.ImplementsClause Then
                Dim newNode = SyntaxFactory.MethodStatement(kind, attributeLists, modifiers, subOrFunctionKeyword, identifier, typeParameterList, parameterList, asClause, handlesClause, implementsClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A statement that declares a constructor. This statement will be the Begin of a
    ''' BlockStatement with Kind=MethodDeclarationBlock, and the body of the method
    ''' will be the Body of that BlockStatement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SubNewStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SubNewStatementSyntax
        Inherits MethodBaseSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, subKeyword As InternalSyntax.KeywordSyntax, newKeyword As InternalSyntax.KeywordSyntax, parameterList As ParameterListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SubNewStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, subKeyword, newKeyword, if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As SubNewStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.SubKeyword, Me.NewKeyword, Me.ParameterList)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As SubNewStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SubNewStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As SubNewStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.SubKeyword, Me.NewKeyword, Me.ParameterList)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As SubNewStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Sub" keyword.
        ''' </summary>
        Public ReadOnly Property SubKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SubNewStatementSyntax)._subKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SubKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithSubKeyword(subKeyword as SyntaxToken) As SubNewStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, subKeyword, Me.NewKeyword, Me.ParameterList)
        End Function

        ''' <summary>
        ''' The "New" keyword in the constructor declaration.
        ''' </summary>
        Public ReadOnly Property NewKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SubNewStatementSyntax)._newKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NewKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNewKeyword(newKeyword as SyntaxToken) As SubNewStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.SubKeyword, newKeyword, Me.ParameterList)
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 4)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As SubNewStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.SubKeyword, Me.NewKeyword, parameterList)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As SubNewStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._parameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.ParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSubNewStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSubNewStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="subKeyword">
        ''' The value for the SubKeyword property.
        ''' </param>
        ''' <param name="newKeyword">
        ''' The value for the NewKeyword property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, subKeyword As SyntaxToken, newKeyword As SyntaxToken, parameterList As ParameterListSyntax) As SubNewStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse subKeyword <> Me.SubKeyword OrElse newKeyword <> Me.NewKeyword OrElse parameterList IsNot Me.ParameterList Then
                Dim newNode = SyntaxFactory.SubNewStatement(attributeLists, modifiers, subKeyword, newKeyword, parameterList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A Declare statement that declares an external DLL method.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.DeclareSubStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DeclareFunctionStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DeclareStatementSyntax
        Inherits MethodBaseSyntax

        Friend _libraryName as LiteralExpressionSyntax
        Friend _aliasName as LiteralExpressionSyntax
        Friend _asClause as SimpleAsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, declareKeyword As InternalSyntax.KeywordSyntax, charsetKeyword As InternalSyntax.KeywordSyntax, subOrFunctionKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, libKeyword As InternalSyntax.KeywordSyntax, libraryName As LiteralExpressionSyntax, aliasKeyword As InternalSyntax.KeywordSyntax, aliasName As LiteralExpressionSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, declareKeyword, charsetKeyword, subOrFunctionKeyword, identifier, libKeyword, DirectCast(libraryName.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LiteralExpressionSyntax), aliasKeyword, if(aliasName IsNot Nothing, DirectCast(aliasName.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LiteralExpressionSyntax), Nothing), if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As DeclareStatementSyntax
            return Update(Me.Kind, attributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As DeclareStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As DeclareStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Declare" keyword.
        ''' </summary>
        Public ReadOnly Property DeclareKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax)._declareKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DeclareKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithDeclareKeyword(declareKeyword as SyntaxToken) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, declareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' If present, the keyword that defines the string translation semantics of the
        ''' external method.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property CharsetKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax)._charsetKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(3), Me.GetChildIndex(3))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CharsetKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCharsetKeyword(charsetKeyword as SyntaxToken) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, charsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The "Sub" or "Function" keyword.
        ''' </summary>
        Public ReadOnly Property SubOrFunctionKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax)._subOrFunctionKeyword, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubOrFunctionKeyword(subOrFunctionKeyword as SyntaxToken) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, subOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The name of the method being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax)._identifier, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The "Lib" keyword.
        ''' </summary>
        Public ReadOnly Property LibKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax)._libKeyword, Me.GetChildPosition(6), Me.GetChildIndex(6))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LibKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLibKeyword(libKeyword as SyntaxToken) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, libKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The string literal with the library name.
        ''' </summary>
        Public ReadOnly Property LibraryName As LiteralExpressionSyntax
            Get
                Return GetRed(_libraryName, 7)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LibraryName property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLibraryName(libraryName as LiteralExpressionSyntax) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, libraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' If present, the "Alias" keyword. If not present, returns Nothing.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AliasKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DeclareStatementSyntax)._aliasKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(8), Me.GetChildIndex(8))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AliasKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAliasKeyword(aliasKeyword as SyntaxToken) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, aliasKeyword, Me.AliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The string literal with the alias. If not present, returns Nothing.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AliasName As LiteralExpressionSyntax
            Get
                Return GetRed(_aliasName, 9)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AliasName property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAliasName(aliasName as LiteralExpressionSyntax) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, aliasName, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 10)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, parameterList, Me.AsClause)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As DeclareStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type. If no As clause was present,
        ''' Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 11)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As DeclareStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DeclareKeyword, Me.CharsetKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.LibKeyword, Me.LibraryName, Me.AliasKeyword, Me.AliasName, Me.ParameterList, asClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 7
                    Return Me._libraryName
                Case 9
                    Return Me._aliasName
                Case 10
                    Return Me._parameterList
                Case 11
                    Return Me._asClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 7
                    Return Me.LibraryName
                Case 9
                    Return Me.AliasName
                Case 10
                    Return Me.ParameterList
                Case 11
                    Return Me.AsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDeclareStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDeclareStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="declareKeyword">
        ''' The value for the DeclareKeyword property.
        ''' </param>
        ''' <param name="charsetKeyword">
        ''' The value for the CharsetKeyword property.
        ''' </param>
        ''' <param name="subOrFunctionKeyword">
        ''' The value for the SubOrFunctionKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="libKeyword">
        ''' The value for the LibKeyword property.
        ''' </param>
        ''' <param name="libraryName">
        ''' The value for the LibraryName property.
        ''' </param>
        ''' <param name="aliasKeyword">
        ''' The value for the AliasKeyword property.
        ''' </param>
        ''' <param name="aliasName">
        ''' The value for the AliasName property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, declareKeyword As SyntaxToken, charsetKeyword As SyntaxToken, subOrFunctionKeyword As SyntaxToken, identifier As SyntaxToken, libKeyword As SyntaxToken, libraryName As LiteralExpressionSyntax, aliasKeyword As SyntaxToken, aliasName As LiteralExpressionSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax) As DeclareStatementSyntax
            If kind <> Me.Kind OrElse attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse declareKeyword <> Me.DeclareKeyword OrElse charsetKeyword <> Me.CharsetKeyword OrElse subOrFunctionKeyword <> Me.SubOrFunctionKeyword OrElse identifier <> Me.Identifier OrElse libKeyword <> Me.LibKeyword OrElse libraryName IsNot Me.LibraryName OrElse aliasKeyword <> Me.AliasKeyword OrElse aliasName IsNot Me.AliasName OrElse parameterList IsNot Me.ParameterList OrElse asClause IsNot Me.AsClause Then
                Dim newNode = SyntaxFactory.DeclareStatement(kind, attributeLists, modifiers, declareKeyword, charsetKeyword, subOrFunctionKeyword, identifier, libKeyword, libraryName, aliasKeyword, aliasName, parameterList, asClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A statement that declares a delegate type.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.DelegateSubStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DelegateFunctionStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DelegateStatementSyntax
        Inherits MethodBaseSyntax

        Friend _typeParameterList as TypeParameterListSyntax
        Friend _asClause as SimpleAsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, delegateKeyword As InternalSyntax.KeywordSyntax, subOrFunctionKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, typeParameterList As TypeParameterListSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DelegateStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, delegateKeyword, subOrFunctionKeyword, identifier, if(typeParameterList IsNot Nothing, DirectCast(typeParameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeParameterListSyntax), Nothing), if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As DelegateStatementSyntax
            return Update(Me.Kind, attributeLists, Me.Modifiers, Me.DelegateKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As DelegateStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DelegateStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As DelegateStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, modifiers, Me.DelegateKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As DelegateStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Delegate" keyword.
        ''' </summary>
        Public ReadOnly Property DelegateKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DelegateStatementSyntax)._delegateKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DelegateKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithDelegateKeyword(delegateKeyword as SyntaxToken) As DelegateStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, delegateKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The "Sub" or "Function" keyword.
        ''' </summary>
        Public ReadOnly Property SubOrFunctionKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DelegateStatementSyntax)._subOrFunctionKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubOrFunctionKeyword(subOrFunctionKeyword as SyntaxToken) As DelegateStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DelegateKeyword, subOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The name of the delegate being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DelegateStatementSyntax)._identifier, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As DelegateStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DelegateKeyword, Me.SubOrFunctionKeyword, identifier, Me.TypeParameterList, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' If present, a type parameter list with generic type parameters for this
        ''' delegate. If no generic type parameters were present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property TypeParameterList As TypeParameterListSyntax
            Get
                Return GetRed(_typeParameterList, 5)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TypeParameterList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithTypeParameterList(typeParameterList as TypeParameterListSyntax) As DelegateStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DelegateKeyword, Me.SubOrFunctionKeyword, Me.Identifier, typeParameterList, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddTypeParameterListParameters(ParamArray items As TypeParameterSyntax()) As DelegateStatementSyntax
            Dim _child = If(Me.TypeParameterList IsNot Nothing, Me.TypeParameterList, SyntaxFactory.TypeParameterList())
            Return Me.WithTypeParameterList(_child.AddParameters(items))
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 6)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As DelegateStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DelegateKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, parameterList, Me.AsClause)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As DelegateStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type. If no As clause was present,
        ''' Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 7)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As DelegateStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.DelegateKeyword, Me.SubOrFunctionKeyword, Me.Identifier, Me.TypeParameterList, Me.ParameterList, asClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 5
                    Return Me._typeParameterList
                Case 6
                    Return Me._parameterList
                Case 7
                    Return Me._asClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 5
                    Return Me.TypeParameterList
                Case 6
                    Return Me.ParameterList
                Case 7
                    Return Me.AsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDelegateStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDelegateStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="delegateKeyword">
        ''' The value for the DelegateKeyword property.
        ''' </param>
        ''' <param name="subOrFunctionKeyword">
        ''' The value for the SubOrFunctionKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeParameterList">
        ''' The value for the TypeParameterList property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, delegateKeyword As SyntaxToken, subOrFunctionKeyword As SyntaxToken, identifier As SyntaxToken, typeParameterList As TypeParameterListSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax) As DelegateStatementSyntax
            If kind <> Me.Kind OrElse attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse delegateKeyword <> Me.DelegateKeyword OrElse subOrFunctionKeyword <> Me.SubOrFunctionKeyword OrElse identifier <> Me.Identifier OrElse typeParameterList IsNot Me.TypeParameterList OrElse parameterList IsNot Me.ParameterList OrElse asClause IsNot Me.AsClause Then
                Dim newNode = SyntaxFactory.DelegateStatement(kind, attributeLists, modifiers, delegateKeyword, subOrFunctionKeyword, identifier, typeParameterList, parameterList, asClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A statement that declares an event. If the event being declared is a custom
    ''' event, this statement will be the Begin of a PropertyOrEventBlock, and the
    ''' accessors will be part of the Accessors of that node.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EventStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EventStatementSyntax
        Inherits MethodBaseSyntax

        Friend _asClause as SimpleAsClauseSyntax
        Friend _implementsClause as ImplementsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, customKeyword As InternalSyntax.KeywordSyntax, eventKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax, implementsClause As ImplementsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, customKeyword, eventKeyword, identifier, if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing), if(implementsClause IsNot Nothing, DirectCast(implementsClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImplementsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As EventStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.CustomKeyword, Me.EventKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As EventStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As EventStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.CustomKeyword, Me.EventKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As EventStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The optional Custom keyword for custom event declarations.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property CustomKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventStatementSyntax)._customKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(2), Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CustomKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCustomKeyword(customKeyword as SyntaxToken) As EventStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, customKeyword, Me.EventKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' The "Event" keyword that introduces this event declaration.
        ''' </summary>
        Public ReadOnly Property EventKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventStatementSyntax)._eventKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EventKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEventKeyword(eventKeyword as SyntaxToken) As EventStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.CustomKeyword, eventKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' The name of the event being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventStatementSyntax)._identifier, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As EventStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.CustomKeyword, Me.EventKeyword, identifier, Me.ParameterList, Me.AsClause, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 5)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As EventStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.CustomKeyword, Me.EventKeyword, Me.Identifier, parameterList, Me.AsClause, Me.ImplementsClause)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As EventStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type. If no As clause was present,
        ''' Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 6)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As EventStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.CustomKeyword, Me.EventKeyword, Me.Identifier, Me.ParameterList, asClause, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' If present, an Implements clause indicates the interface methods that this
        ''' method implements.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ImplementsClause As ImplementsClauseSyntax
            Get
                Return GetRed(_implementsClause, 7)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ImplementsClause property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithImplementsClause(implementsClause as ImplementsClauseSyntax) As EventStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.CustomKeyword, Me.EventKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, implementsClause)
        End Function

        Public Shadows Function AddImplementsClauseInterfaceMembers(ParamArray items As QualifiedNameSyntax()) As EventStatementSyntax
            Dim _child = If(Me.ImplementsClause IsNot Nothing, Me.ImplementsClause, SyntaxFactory.ImplementsClause())
            Return Me.WithImplementsClause(_child.AddInterfaceMembers(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 5
                    Return Me._parameterList
                Case 6
                    Return Me._asClause
                Case 7
                    Return Me._implementsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 5
                    Return Me.ParameterList
                Case 6
                    Return Me.AsClause
                Case 7
                    Return Me.ImplementsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEventStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEventStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="customKeyword">
        ''' The value for the CustomKeyword property.
        ''' </param>
        ''' <param name="eventKeyword">
        ''' The value for the EventKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="implementsClause">
        ''' The value for the ImplementsClause property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, customKeyword As SyntaxToken, eventKeyword As SyntaxToken, identifier As SyntaxToken, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax, implementsClause As ImplementsClauseSyntax) As EventStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse customKeyword <> Me.CustomKeyword OrElse eventKeyword <> Me.EventKeyword OrElse identifier <> Me.Identifier OrElse parameterList IsNot Me.ParameterList OrElse asClause IsNot Me.AsClause OrElse implementsClause IsNot Me.ImplementsClause Then
                Dim newNode = SyntaxFactory.EventStatement(attributeLists, modifiers, customKeyword, eventKeyword, identifier, parameterList, asClause, implementsClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A statement that declares an operator. If this operator has a body, this
    ''' statement will be the Begin of a BlockStatement with
    ''' Kind=MethodDeclarationBlock, and the body of the method will be the Body of
    ''' that BlockStatement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.OperatorStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OperatorStatementSyntax
        Inherits MethodBaseSyntax

        Friend _asClause as SimpleAsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, operatorKeyword As InternalSyntax.KeywordSyntax, operatorToken As InternalSyntax.SyntaxToken, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OperatorStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, operatorKeyword, operatorToken, if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As OperatorStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.OperatorKeyword, Me.OperatorToken, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As OperatorStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OperatorStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As OperatorStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.OperatorKeyword, Me.OperatorToken, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As OperatorStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Operator" keyword that introduces this operator declaration.
        ''' </summary>
        Public ReadOnly Property OperatorKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OperatorStatementSyntax)._operatorKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOperatorKeyword(operatorKeyword as SyntaxToken) As OperatorStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, operatorKeyword, Me.OperatorToken, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The operator being defined.
        ''' </summary>
        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OperatorStatementSyntax)._operatorToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As OperatorStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.OperatorKeyword, operatorToken, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 4)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As OperatorStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.OperatorKeyword, Me.OperatorToken, parameterList, Me.AsClause)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As OperatorStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type. If no As clause was present,
        ''' Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 5)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As OperatorStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.OperatorKeyword, Me.OperatorToken, Me.ParameterList, asClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._parameterList
                Case 5
                    Return Me._asClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.ParameterList
                Case 5
                    Return Me.AsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOperatorStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOperatorStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="operatorKeyword">
        ''' The value for the OperatorKeyword property.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, operatorKeyword As SyntaxToken, operatorToken As SyntaxToken, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax) As OperatorStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse operatorKeyword <> Me.OperatorKeyword OrElse operatorToken <> Me.OperatorToken OrElse parameterList IsNot Me.ParameterList OrElse asClause IsNot Me.AsClause Then
                Dim newNode = SyntaxFactory.OperatorStatement(attributeLists, modifiers, operatorKeyword, operatorToken, parameterList, asClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Statement that declares a property. If this property has accessors declared,
    ''' this statement will be the Begin of a BlockNode, and the accessors will be the
    ''' Body of that node. Auto properties are property declarations without a
    ''' PropertyBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.PropertyStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class PropertyStatementSyntax
        Inherits MethodBaseSyntax

        Friend _asClause as AsClauseSyntax
        Friend _initializer as EqualsValueSyntax
        Friend _implementsClause as ImplementsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, propertyKeyword As InternalSyntax.KeywordSyntax, identifier As InternalSyntax.IdentifierTokenSyntax, parameterList As ParameterListSyntax, asClause As AsClauseSyntax, initializer As EqualsValueSyntax, implementsClause As ImplementsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PropertyStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, propertyKeyword, identifier, if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AsClauseSyntax), Nothing), if(initializer IsNot Nothing, DirectCast(initializer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EqualsValueSyntax), Nothing), if(implementsClause IsNot Nothing, DirectCast(implementsClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImplementsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As PropertyStatementSyntax
            return Update(attributeLists, Me.Modifiers, Me.PropertyKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.Initializer, Me.ImplementsClause)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As PropertyStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PropertyStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As PropertyStatementSyntax
            return Update(Me.AttributeLists, modifiers, Me.PropertyKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.Initializer, Me.ImplementsClause)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As PropertyStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Property" keyword that introduces this property declaration.
        ''' </summary>
        Public ReadOnly Property PropertyKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PropertyStatementSyntax)._propertyKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the PropertyKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithPropertyKeyword(propertyKeyword as SyntaxToken) As PropertyStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, propertyKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.Initializer, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' The name of the property being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PropertyStatementSyntax)._identifier, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As PropertyStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.PropertyKeyword, identifier, Me.ParameterList, Me.AsClause, Me.Initializer, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 4)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As PropertyStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.PropertyKeyword, Me.Identifier, parameterList, Me.AsClause, Me.Initializer, Me.ImplementsClause)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As PropertyStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type. If no As clause was present,
        ''' Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As AsClauseSyntax
            Get
                Return GetRed(_asClause, 5)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as AsClauseSyntax) As PropertyStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.PropertyKeyword, Me.Identifier, Me.ParameterList, asClause, Me.Initializer, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' If present, an "= initial-value" clause describing the initial value of the
        ''' property.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Initializer As EqualsValueSyntax
            Get
                Return GetRed(_initializer, 6)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializer property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializer(initializer as EqualsValueSyntax) As PropertyStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.PropertyKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, initializer, Me.ImplementsClause)
        End Function

        ''' <summary>
        ''' If present, an Implements clause indicated the interface methods that this
        ''' method implements.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ImplementsClause As ImplementsClauseSyntax
            Get
                Return GetRed(_implementsClause, 7)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ImplementsClause property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithImplementsClause(implementsClause as ImplementsClauseSyntax) As PropertyStatementSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.PropertyKeyword, Me.Identifier, Me.ParameterList, Me.AsClause, Me.Initializer, implementsClause)
        End Function

        Public Shadows Function AddImplementsClauseInterfaceMembers(ParamArray items As QualifiedNameSyntax()) As PropertyStatementSyntax
            Dim _child = If(Me.ImplementsClause IsNot Nothing, Me.ImplementsClause, SyntaxFactory.ImplementsClause())
            Return Me.WithImplementsClause(_child.AddInterfaceMembers(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 4
                    Return Me._parameterList
                Case 5
                    Return Me._asClause
                Case 6
                    Return Me._initializer
                Case 7
                    Return Me._implementsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 4
                    Return Me.ParameterList
                Case 5
                    Return Me.AsClause
                Case 6
                    Return Me.Initializer
                Case 7
                    Return Me.ImplementsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitPropertyStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitPropertyStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="propertyKeyword">
        ''' The value for the PropertyKeyword property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="initializer">
        ''' The value for the Initializer property.
        ''' </param>
        ''' <param name="implementsClause">
        ''' The value for the ImplementsClause property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, propertyKeyword As SyntaxToken, identifier As SyntaxToken, parameterList As ParameterListSyntax, asClause As AsClauseSyntax, initializer As EqualsValueSyntax, implementsClause As ImplementsClauseSyntax) As PropertyStatementSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse propertyKeyword <> Me.PropertyKeyword OrElse identifier <> Me.Identifier OrElse parameterList IsNot Me.ParameterList OrElse asClause IsNot Me.AsClause OrElse initializer IsNot Me.Initializer OrElse implementsClause IsNot Me.ImplementsClause Then
                Dim newNode = SyntaxFactory.PropertyStatement(attributeLists, modifiers, propertyKeyword, identifier, parameterList, asClause, initializer, implementsClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Get or Set accessor on a property declaration or an AddHandler,
    ''' RemoveHandler or RaiseEvent accessor on a custom event declaration. The Kind of
    ''' the node determines what kind of accessor this is. This statement is always the
    ''' Begin of a BlockNode, and the body of the accessor is the Body of that node.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GetAccessorStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.SetAccessorStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.AddHandlerAccessorStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.RemoveHandlerAccessorStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.RaiseEventAccessorStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AccessorStatementSyntax
        Inherits MethodBaseSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, accessorKeyword As InternalSyntax.KeywordSyntax, parameterList As ParameterListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AccessorStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, accessorKeyword, if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As AccessorStatementSyntax
            return Update(Me.Kind, attributeLists, Me.Modifiers, Me.AccessorKeyword, Me.ParameterList)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As AccessorStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AccessorStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As AccessorStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, modifiers, Me.AccessorKeyword, Me.ParameterList)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As AccessorStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Get", "Set", "AddHandler", "RemoveHandler", or "RaiseEvent" keyword that
        ''' introduces this accessor declaration.
        ''' </summary>
        Public ReadOnly Property AccessorKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AccessorStatementSyntax)._accessorKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AccessorKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAccessorKeyword(accessorKeyword as SyntaxToken) As AccessorStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, accessorKeyword, Me.ParameterList)
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 3)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As AccessorStatementSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.AccessorKeyword, parameterList)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As AccessorStatementSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 3
                    Return Me._parameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 3
                    Return Me.ParameterList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAccessorStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAccessorStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="accessorKeyword">
        ''' The value for the AccessorKeyword property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, accessorKeyword As SyntaxToken, parameterList As ParameterListSyntax) As AccessorStatementSyntax
            If kind <> Me.Kind OrElse attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse accessorKeyword <> Me.AccessorKeyword OrElse parameterList IsNot Me.ParameterList Then
                Dim newNode = SyntaxFactory.AccessorStatement(kind, attributeLists, modifiers, accessorKeyword, parameterList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Implements ..." clause on a type member, which describes which
    ''' interface members this member implements.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ImplementsClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ImplementsClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _interfaceMembers as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), implementsKeyword As InternalSyntax.KeywordSyntax, interfaceMembers As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImplementsClauseSyntax(kind, errors, annotations, implementsKeyword, if(interfaceMembers IsNot Nothing, interfaceMembers.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Implements" keyword.
        ''' </summary>
        Public ReadOnly Property ImplementsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ImplementsClauseSyntax)._implementsKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ImplementsKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithImplementsKeyword(implementsKeyword as SyntaxToken) As ImplementsClauseSyntax
            return Update(implementsKeyword, Me.InterfaceMembers)
        End Function

        ''' <summary>
        ''' The list of interface members being implemented.
        ''' </summary>
        Public ReadOnly Property InterfaceMembers As SeparatedSyntaxList(Of QualifiedNameSyntax)
            Get
                Dim listNode = GetRed(_interfaceMembers, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of QualifiedNameSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the InterfaceMembers property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithInterfaceMembers(interfaceMembers as SeparatedSyntaxList(Of QualifiedNameSyntax)) As ImplementsClauseSyntax
            return Update(Me.ImplementsKeyword, interfaceMembers)
        End Function

        Public Shadows Function AddInterfaceMembers(ParamArray items As QualifiedNameSyntax()) As ImplementsClauseSyntax
            Return Me.WithInterfaceMembers(Me.InterfaceMembers.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._interfaceMembers
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_interfaceMembers, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitImplementsClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitImplementsClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="implementsKeyword">
        ''' The value for the ImplementsKeyword property.
        ''' </param>
        ''' <param name="interfaceMembers">
        ''' The value for the InterfaceMembers property.
        ''' </param>
        Public Function Update(implementsKeyword As SyntaxToken, interfaceMembers As SeparatedSyntaxList(Of QualifiedNameSyntax)) As ImplementsClauseSyntax
            If implementsKeyword <> Me.ImplementsKeyword OrElse interfaceMembers <> Me.InterfaceMembers Then
                Dim newNode = SyntaxFactory.ImplementsClause(implementsKeyword, interfaceMembers)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Handles ..." clause on a method declaration that describes
    ''' which events this method handles.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.HandlesClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class HandlesClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _events as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), handlesKeyword As InternalSyntax.KeywordSyntax, events As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.HandlesClauseSyntax(kind, errors, annotations, handlesKeyword, if(events IsNot Nothing, events.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Handles" keyword.
        ''' </summary>
        Public ReadOnly Property HandlesKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.HandlesClauseSyntax)._handlesKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the HandlesKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithHandlesKeyword(handlesKeyword as SyntaxToken) As HandlesClauseSyntax
            return Update(handlesKeyword, Me.Events)
        End Function

        ''' <summary>
        ''' The list of event members being handled.
        ''' </summary>
        Public ReadOnly Property Events As SeparatedSyntaxList(Of HandlesClauseItemSyntax)
            Get
                Dim listNode = GetRed(_events, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of HandlesClauseItemSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Events property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function [WithEvents](events as SeparatedSyntaxList(Of HandlesClauseItemSyntax)) As HandlesClauseSyntax
            return Update(Me.HandlesKeyword, events)
        End Function

        Public Shadows Function AddEvents(ParamArray items As HandlesClauseItemSyntax()) As HandlesClauseSyntax
            Return Me.WithEvents(Me.Events.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._events
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_events, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitHandlesClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitHandlesClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="handlesKeyword">
        ''' The value for the HandlesKeyword property.
        ''' </param>
        ''' <param name="events">
        ''' The value for the Events property.
        ''' </param>
        Public Function Update(handlesKeyword As SyntaxToken, events As SeparatedSyntaxList(Of HandlesClauseItemSyntax)) As HandlesClauseSyntax
            If handlesKeyword <> Me.HandlesKeyword OrElse events <> Me.Events Then
                Dim newNode = SyntaxFactory.HandlesClause(handlesKeyword, events)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents container of an event in a Handles clause item.
    ''' </summary>
    Public MustInherit Class EventContainerSyntax
        Inherits ExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents event container specified through special keywords "Me", "MyBase" or
    ''' "MyClass"..
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.KeywordEventContainer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class KeywordEventContainerSyntax
        Inherits EventContainerSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.KeywordEventContainerSyntax(kind, errors, annotations, keyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The container of the event. This can be one of the special keywords: "Me",
        ''' "MyBase" or "MyClass".
        ''' </summary>
        Public ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.KeywordEventContainerSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As KeywordEventContainerSyntax
            return Update(keyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitKeywordEventContainer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitKeywordEventContainer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken) As KeywordEventContainerSyntax
            If keyword <> Me.Keyword Then
                Dim newNode = SyntaxFactory.KeywordEventContainer(keyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents event container that refers to a WithEvents member.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WithEventsEventContainer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WithEventsEventContainerSyntax
        Inherits EventContainerSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As InternalSyntax.IdentifierTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithEventsEventContainerSyntax(kind, errors, annotations, identifier), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The container of the event. It is a simple identifier that refers to a
        ''' WithEvents member of the containing type.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithEventsEventContainerSyntax)._identifier, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As WithEventsEventContainerSyntax
            return Update(identifier)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWithEventsEventContainer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWithEventsEventContainer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        Public Function Update(identifier As SyntaxToken) As WithEventsEventContainerSyntax
            If identifier <> Me.Identifier Then
                Dim newNode = SyntaxFactory.WithEventsEventContainer(identifier)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents event container that refers to a WithEvents member's property.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WithEventsPropertyEventContainer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WithEventsPropertyEventContainerSyntax
        Inherits EventContainerSyntax

        Friend _withEventsContainer as WithEventsEventContainerSyntax
        Friend _property as IdentifierNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), withEventsContainer As WithEventsEventContainerSyntax, dotToken As InternalSyntax.PunctuationSyntax, [property] As IdentifierNameSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithEventsPropertyEventContainerSyntax(kind, errors, annotations, DirectCast(withEventsContainer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithEventsEventContainerSyntax), dotToken, DirectCast([property].Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The container of the event.
        ''' </summary>
        Public ReadOnly Property WithEventsContainer As WithEventsEventContainerSyntax
            Get
                Return GetRedAtZero(_withEventsContainer)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WithEventsContainer property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithWithEventsContainer(withEventsContainer as WithEventsEventContainerSyntax) As WithEventsPropertyEventContainerSyntax
            return Update(withEventsContainer, Me.DotToken, Me.Property)
        End Function

        ''' <summary>
        ''' The "." token.
        ''' </summary>
        Public ReadOnly Property DotToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithEventsPropertyEventContainerSyntax)._dotToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DotToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDotToken(dotToken as SyntaxToken) As WithEventsPropertyEventContainerSyntax
            return Update(Me.WithEventsContainer, dotToken, Me.Property)
        End Function

        ''' <summary>
        ''' The provider of the event. It is a property of a WithEvents member of the
        ''' containing type.
        ''' </summary>
        Public ReadOnly Property [Property] As IdentifierNameSyntax
            Get
                Return GetRed(_property, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the [Property] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithProperty([property] as IdentifierNameSyntax) As WithEventsPropertyEventContainerSyntax
            return Update(Me.WithEventsContainer, Me.DotToken, [property])
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._withEventsContainer
                Case 2
                    Return Me._property
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.WithEventsContainer
                Case 2
                    Return Me.[Property]
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWithEventsPropertyEventContainer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWithEventsPropertyEventContainer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="withEventsContainer">
        ''' The value for the WithEventsContainer property.
        ''' </param>
        ''' <param name="dotToken">
        ''' The value for the DotToken property.
        ''' </param>
        ''' <param name="property">
        ''' The value for the Property property.
        ''' </param>
        Public Function Update(withEventsContainer As WithEventsEventContainerSyntax, dotToken As SyntaxToken, [property] As IdentifierNameSyntax) As WithEventsPropertyEventContainerSyntax
            If withEventsContainer IsNot Me.WithEventsContainer OrElse dotToken <> Me.DotToken OrElse [property] IsNot Me.[Property] Then
                Dim newNode = SyntaxFactory.WithEventsPropertyEventContainer(withEventsContainer, dotToken, [property])
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single handled event in a "Handles ..." clause.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.HandlesClauseItem"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class HandlesClauseItemSyntax
        Inherits VisualBasicSyntaxNode

        Friend _eventContainer as EventContainerSyntax
        Friend _eventMember as IdentifierNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), eventContainer As EventContainerSyntax, dotToken As InternalSyntax.PunctuationSyntax, eventMember As IdentifierNameSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.HandlesClauseItemSyntax(kind, errors, annotations, DirectCast(eventContainer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EventContainerSyntax), dotToken, DirectCast(eventMember.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The container of the event. This can either be a simple identifier (identifying
        ''' a members of the containing type) or one of the special keywords "Me", "MyBase"
        ''' or "MyClass".
        ''' </summary>
        Public ReadOnly Property EventContainer As EventContainerSyntax
            Get
                Return GetRedAtZero(_eventContainer)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EventContainer property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEventContainer(eventContainer as EventContainerSyntax) As HandlesClauseItemSyntax
            return Update(eventContainer, Me.DotToken, Me.EventMember)
        End Function

        ''' <summary>
        ''' The "." token.
        ''' </summary>
        Public ReadOnly Property DotToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.HandlesClauseItemSyntax)._dotToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DotToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDotToken(dotToken as SyntaxToken) As HandlesClauseItemSyntax
            return Update(Me.EventContainer, dotToken, Me.EventMember)
        End Function

        ''' <summary>
        ''' The event being handled. This must be a simple identifier.
        ''' </summary>
        Public ReadOnly Property EventMember As IdentifierNameSyntax
            Get
                Return GetRed(_eventMember, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EventMember property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEventMember(eventMember as IdentifierNameSyntax) As HandlesClauseItemSyntax
            return Update(Me.EventContainer, Me.DotToken, eventMember)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._eventContainer
                Case 2
                    Return Me._eventMember
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.EventContainer
                Case 2
                    Return Me.EventMember
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitHandlesClauseItem(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitHandlesClauseItem(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="eventContainer">
        ''' The value for the EventContainer property.
        ''' </param>
        ''' <param name="dotToken">
        ''' The value for the DotToken property.
        ''' </param>
        ''' <param name="eventMember">
        ''' The value for the EventMember property.
        ''' </param>
        Public Function Update(eventContainer As EventContainerSyntax, dotToken As SyntaxToken, eventMember As IdentifierNameSyntax) As HandlesClauseItemSyntax
            If eventContainer IsNot Me.EventContainer OrElse dotToken <> Me.DotToken OrElse eventMember IsNot Me.EventMember Then
                Dim newNode = SyntaxFactory.HandlesClauseItem(eventContainer, dotToken, eventMember)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning of a declaration. However, not enough syntax is
    ''' detected to classify this as a field, method, property or event. This is node
    ''' always represents a syntax error.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.IncompleteMember"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class IncompleteMemberSyntax
        Inherits DeclarationStatementSyntax

        Friend _attributeLists as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, missingIdentifier As InternalSyntax.IdentifierTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IncompleteMemberSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, missingIdentifier), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As IncompleteMemberSyntax
            return Update(attributeLists, Me.Modifiers, Me.MissingIdentifier)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As IncompleteMemberSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IncompleteMemberSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As IncompleteMemberSyntax
            return Update(Me.AttributeLists, modifiers, Me.MissingIdentifier)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As IncompleteMemberSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        ''' <summary>
        ''' The missing identifier token for this incomplete member. Should only be used to
        ''' have a location for error reporting.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property MissingIdentifier As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IncompleteMemberSyntax)._missingIdentifier
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(2), Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the MissingIdentifier property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithMissingIdentifier(missingIdentifier as SyntaxToken) As IncompleteMemberSyntax
            return Update(Me.AttributeLists, Me.Modifiers, missingIdentifier)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitIncompleteMember(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitIncompleteMember(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="missingIdentifier">
        ''' The value for the MissingIdentifier property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, missingIdentifier As SyntaxToken) As IncompleteMemberSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse missingIdentifier <> Me.MissingIdentifier Then
                Dim newNode = SyntaxFactory.IncompleteMember(attributeLists, modifiers, missingIdentifier)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the declaration of one or more variables or constants, either as
    ''' local variables or as class/structure members. In the case of a constant, it is
    ''' represented by having "Const" in the Modifiers (although technically "Const" is
    ''' not a modifier, it is represented as one in the parse trees.)
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.FieldDeclaration"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class FieldDeclarationSyntax
        Inherits DeclarationStatementSyntax

        Friend _attributeLists as SyntaxNode
        Friend _declarators as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, declarators As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FieldDeclarationSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, if(declarators IsNot Nothing, declarators.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As FieldDeclarationSyntax
            return Update(attributeLists, Me.Modifiers, Me.Declarators)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As FieldDeclarationSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FieldDeclarationSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As FieldDeclarationSyntax
            return Update(Me.AttributeLists, modifiers, Me.Declarators)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As FieldDeclarationSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        ''' <summary>
        ''' The list of variable declarator. Each declarator specifies one or more variable
        ''' names along with a type and/or initializer.
        ''' </summary>
        Public ReadOnly Property Declarators As SeparatedSyntaxList(Of VariableDeclaratorSyntax)
            Get
                Dim listNode = GetRed(_declarators, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of VariableDeclaratorSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Declarators property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDeclarators(declarators as SeparatedSyntaxList(Of VariableDeclaratorSyntax)) As FieldDeclarationSyntax
            return Update(Me.AttributeLists, Me.Modifiers, declarators)
        End Function

        Public Shadows Function AddDeclarators(ParamArray items As VariableDeclaratorSyntax()) As FieldDeclarationSyntax
            Return Me.WithDeclarators(Me.Declarators.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 2
                    Return Me._declarators
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 2
                    Return GetRed(_declarators, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitFieldDeclaration(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitFieldDeclaration(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="declarators">
        ''' The value for the Declarators property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, declarators As SeparatedSyntaxList(Of VariableDeclaratorSyntax)) As FieldDeclarationSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse declarators <> Me.Declarators Then
                Dim newNode = SyntaxFactory.FieldDeclaration(attributeLists, modifiers, declarators)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the part of a variable or constant declaration statement that
    ''' associated one or more variable names with a type.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.VariableDeclarator"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class VariableDeclaratorSyntax
        Inherits VisualBasicSyntaxNode

        Friend _names as SyntaxNode
        Friend _asClause as AsClauseSyntax
        Friend _initializer as EqualsValueSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), names As SyntaxNode, asClause As AsClauseSyntax, initializer As EqualsValueSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VariableDeclaratorSyntax(kind, errors, annotations, if(names IsNot Nothing, names.Green, Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AsClauseSyntax), Nothing), if(initializer IsNot Nothing, DirectCast(initializer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EqualsValueSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The names of the variables being declared. Each name might have a "?" or "()"
        ''' modifier(s) attached.
        ''' </summary>
        Public ReadOnly Property Names As SeparatedSyntaxList(Of ModifiedIdentifierSyntax)
            Get
                Dim listNode = GetRedAtZero(_names)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ModifiedIdentifierSyntax)(listNode, 0)
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Names property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithNames(names as SeparatedSyntaxList(Of ModifiedIdentifierSyntax)) As VariableDeclaratorSyntax
            return Update(names, Me.AsClause, Me.Initializer)
        End Function

        Public Shadows Function AddNames(ParamArray items As ModifiedIdentifierSyntax()) As VariableDeclaratorSyntax
            Return Me.WithNames(Me.Names.AddRange(items))
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type, and possibly includes "New",
        ''' "With" or "From". If no As clause was present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As AsClauseSyntax
            Get
                Return GetRed(_asClause, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as AsClauseSyntax) As VariableDeclaratorSyntax
            return Update(Me.Names, asClause, Me.Initializer)
        End Function

        ''' <summary>
        ''' If present, an "= initial-value" clause describing the initial value of the
        ''' variable or the value of the constant.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Initializer As EqualsValueSyntax
            Get
                Return GetRed(_initializer, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializer property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializer(initializer as EqualsValueSyntax) As VariableDeclaratorSyntax
            return Update(Me.Names, Me.AsClause, initializer)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._names
                Case 1
                    Return Me._asClause
                Case 2
                    Return Me._initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_names)
                Case 1
                    Return Me.AsClause
                Case 2
                    Return Me.Initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitVariableDeclarator(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitVariableDeclarator(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="names">
        ''' The value for the Names property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="initializer">
        ''' The value for the Initializer property.
        ''' </param>
        Public Function Update(names As SeparatedSyntaxList(Of ModifiedIdentifierSyntax), asClause As AsClauseSyntax, initializer As EqualsValueSyntax) As VariableDeclaratorSyntax
            If names <> Me.Names OrElse asClause IsNot Me.AsClause OrElse initializer IsNot Me.Initializer Then
                Dim newNode = SyntaxFactory.VariableDeclarator(names, asClause, initializer)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Abstract node class that represents the different kinds of "As {type-name}"
    ''' clauses in a declaration: simple "As" clauses and "As New" clauses. The type
    ''' has optional attributes associated with it, although attributes are not
    ''' permitted in all possible places where this node occurs.
    ''' </summary>
    Public MustInherit Class AsClauseSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The "As" keyword.
        ''' </summary>
        Public ReadOnly Property AsKeyword As SyntaxToken
            Get
                Return Me.GetAsKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetAsKeywordCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AsClauseSyntax)._asKeyword, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AsKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithAsKeyword(asKeyword As SyntaxToken) As AsClauseSyntax
            Return WithAsKeywordCore(asKeyword)
        End Function
        Friend MustOverride Function WithAsKeywordCore(asKeyword As SyntaxToken) As AsClauseSyntax

    End Class

    ''' <summary>
    ''' Represents an "As {type-name}" clause that does not have an initializer or
    ''' "New". The type has optional attributes associated with it, although attributes
    ''' are not permitted in all possible places where this node occurs.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleAsClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SimpleAsClauseSyntax
        Inherits AsClauseSyntax

        Friend _attributeLists as SyntaxNode
        Friend _type as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), asKeyword As InternalSyntax.KeywordSyntax, attributeLists As SyntaxNode, type As TypeSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax(kind, errors, annotations, asKeyword, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "As" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property AsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax)._asKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetAsKeywordCore() As SyntaxToken
            Return Me.AsKeyword
        End Function

        Friend Overrides Function WithAsKeywordCore(asKeyword As SyntaxToken) As AsClauseSyntax
            Return WithAsKeyword(asKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AsKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsKeyword(asKeyword as SyntaxToken) As SimpleAsClauseSyntax
            return Update(asKeyword, Me.AttributeLists, Me.Type)
        End Function

        ''' <summary>
        ''' A list of all attribute lists on the type. If no attributes were specified, an
        ''' empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRed(_attributeLists, 1)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As SimpleAsClauseSyntax
            return Update(Me.AsKeyword, attributeLists, Me.Type)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As SimpleAsClauseSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        ''' <summary>
        ''' The type-name part of the As clause.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As SimpleAsClauseSyntax
            return Update(Me.AsKeyword, Me.AttributeLists, type)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._attributeLists
                Case 2
                    Return Me._type
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_attributeLists, 1)
                Case 2
                    Return Me.Type
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSimpleAsClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSimpleAsClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="asKeyword">
        ''' The value for the AsKeyword property.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        Public Function Update(asKeyword As SyntaxToken, attributeLists As SyntaxList(of AttributeListSyntax), type As TypeSyntax) As SimpleAsClauseSyntax
            If asKeyword <> Me.AsKeyword OrElse attributeLists <> Me.AttributeLists OrElse type IsNot Me.Type Then
                Dim newNode = SyntaxFactory.SimpleAsClause(asKeyword, attributeLists, type)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an "As New {type-name} [arguments] [initializers]" clause in a
    ''' declaration. The type has optional attributes associated with it, although
    ''' attributes are not permitted in many places where this node occurs (they are
    ''' permitted, for example, on automatically implemented properties.)
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AsNewClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AsNewClauseSyntax
        Inherits AsClauseSyntax

        Friend _newExpression as NewExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), asKeyword As InternalSyntax.KeywordSyntax, newExpression As NewExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AsNewClauseSyntax(kind, errors, annotations, asKeyword, DirectCast(newExpression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NewExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "As" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property AsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AsNewClauseSyntax)._asKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetAsKeywordCore() As SyntaxToken
            Return Me.AsKeyword
        End Function

        Friend Overrides Function WithAsKeywordCore(asKeyword As SyntaxToken) As AsClauseSyntax
            Return WithAsKeyword(asKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AsKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsKeyword(asKeyword as SyntaxToken) As AsNewClauseSyntax
            return Update(asKeyword, Me.NewExpression)
        End Function

        ''' <summary>
        ''' The New expression
        ''' </summary>
        Public ReadOnly Property NewExpression As NewExpressionSyntax
            Get
                Return GetRed(_newExpression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NewExpression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNewExpression(newExpression as NewExpressionSyntax) As AsNewClauseSyntax
            return Update(Me.AsKeyword, newExpression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._newExpression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.NewExpression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAsNewClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAsNewClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="asKeyword">
        ''' The value for the AsKeyword property.
        ''' </param>
        ''' <param name="newExpression">
        ''' The value for the NewExpression property.
        ''' </param>
        Public Function Update(asKeyword As SyntaxToken, newExpression As NewExpressionSyntax) As AsNewClauseSyntax
            If asKeyword <> Me.AsKeyword OrElse newExpression IsNot Me.NewExpression Then
                Dim newNode = SyntaxFactory.AsNewClause(asKeyword, newExpression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' An abstract node class that represents a "With" or "From" clause used to
    ''' initialize a new object.
    ''' </summary>
    Public MustInherit Class ObjectCreationInitializerSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents a "With {...} clause used to initialize a new object's members.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ObjectMemberInitializer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ObjectMemberInitializerSyntax
        Inherits ObjectCreationInitializerSyntax

        Friend _initializers as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), withKeyword As InternalSyntax.KeywordSyntax, openBraceToken As InternalSyntax.PunctuationSyntax, initializers As SyntaxNode, closeBraceToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectMemberInitializerSyntax(kind, errors, annotations, withKeyword, openBraceToken, if(initializers IsNot Nothing, initializers.Green, Nothing), closeBraceToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "With" keyword.
        ''' </summary>
        Public ReadOnly Property WithKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectMemberInitializerSyntax)._withKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WithKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWithKeyword(withKeyword as SyntaxToken) As ObjectMemberInitializerSyntax
            return Update(withKeyword, Me.OpenBraceToken, Me.Initializers, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' The "{" token.
        ''' </summary>
        Public ReadOnly Property OpenBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectMemberInitializerSyntax)._openBraceToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenBraceToken(openBraceToken as SyntaxToken) As ObjectMemberInitializerSyntax
            return Update(Me.WithKeyword, openBraceToken, Me.Initializers, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' The comma-separated list of field initializers.
        ''' </summary>
        Public ReadOnly Property Initializers As SeparatedSyntaxList(Of FieldInitializerSyntax)
            Get
                Dim listNode = GetRed(_initializers, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of FieldInitializerSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializers(initializers as SeparatedSyntaxList(Of FieldInitializerSyntax)) As ObjectMemberInitializerSyntax
            return Update(Me.WithKeyword, Me.OpenBraceToken, initializers, Me.CloseBraceToken)
        End Function

        Public Shadows Function AddInitializers(ParamArray items As FieldInitializerSyntax()) As ObjectMemberInitializerSyntax
            Return Me.WithInitializers(Me.Initializers.AddRange(items))
        End Function

        ''' <summary>
        ''' The "}" token.
        ''' </summary>
        Public ReadOnly Property CloseBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectMemberInitializerSyntax)._closeBraceToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseBraceToken(closeBraceToken as SyntaxToken) As ObjectMemberInitializerSyntax
            return Update(Me.WithKeyword, Me.OpenBraceToken, Me.Initializers, closeBraceToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._initializers
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return GetRed(_initializers, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitObjectMemberInitializer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitObjectMemberInitializer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="withKeyword">
        ''' The value for the WithKeyword property.
        ''' </param>
        ''' <param name="openBraceToken">
        ''' The value for the OpenBraceToken property.
        ''' </param>
        ''' <param name="initializers">
        ''' The value for the Initializers property.
        ''' </param>
        ''' <param name="closeBraceToken">
        ''' The value for the CloseBraceToken property.
        ''' </param>
        Public Function Update(withKeyword As SyntaxToken, openBraceToken As SyntaxToken, initializers As SeparatedSyntaxList(Of FieldInitializerSyntax), closeBraceToken As SyntaxToken) As ObjectMemberInitializerSyntax
            If withKeyword <> Me.WithKeyword OrElse openBraceToken <> Me.OpenBraceToken OrElse initializers <> Me.Initializers OrElse closeBraceToken <> Me.CloseBraceToken Then
                Dim newNode = SyntaxFactory.ObjectMemberInitializer(withKeyword, openBraceToken, initializers, closeBraceToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "From {...} clause used to initialize a new collection object's
    ''' elements.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ObjectCollectionInitializer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ObjectCollectionInitializerSyntax
        Inherits ObjectCreationInitializerSyntax

        Friend _initializer as CollectionInitializerSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), fromKeyword As InternalSyntax.KeywordSyntax, initializer As CollectionInitializerSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectCollectionInitializerSyntax(kind, errors, annotations, fromKeyword, DirectCast(initializer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CollectionInitializerSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "From" keyword.
        ''' </summary>
        Public ReadOnly Property FromKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectCollectionInitializerSyntax)._fromKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FromKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithFromKeyword(fromKeyword as SyntaxToken) As ObjectCollectionInitializerSyntax
            return Update(fromKeyword, Me.Initializer)
        End Function

        ''' <summary>
        ''' The initializer including the braces.
        ''' </summary>
        Public ReadOnly Property Initializer As CollectionInitializerSyntax
            Get
                Return GetRed(_initializer, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializer property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializer(initializer as CollectionInitializerSyntax) As ObjectCollectionInitializerSyntax
            return Update(Me.FromKeyword, initializer)
        End Function

        Public Shadows Function AddInitializerInitializers(ParamArray items As ExpressionSyntax()) As ObjectCollectionInitializerSyntax
            Dim _child = If(Me.Initializer IsNot Nothing, Me.Initializer, SyntaxFactory.CollectionInitializer())
            Return Me.WithInitializer(_child.AddInitializers(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitObjectCollectionInitializer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitObjectCollectionInitializer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="fromKeyword">
        ''' The value for the FromKeyword property.
        ''' </param>
        ''' <param name="initializer">
        ''' The value for the Initializer property.
        ''' </param>
        Public Function Update(fromKeyword As SyntaxToken, initializer As CollectionInitializerSyntax) As ObjectCollectionInitializerSyntax
            If fromKeyword <> Me.FromKeyword OrElse initializer IsNot Me.Initializer Then
                Dim newNode = SyntaxFactory.ObjectCollectionInitializer(fromKeyword, initializer)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Abstract class that represent a single field initializer used in a "With {...}"
    ''' field initializer list.
    ''' </summary>
    Public MustInherit Class FieldInitializerSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The optional "Key" keyword.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property KeyKeyword As SyntaxToken
            Get
                Return Me.GetKeyKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetKeyKeywordCore() As SyntaxToken
            Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FieldInitializerSyntax)._keyKeyword
            If slot IsNot Nothing
                return new SyntaxToken(Me, slot, Me.Position, 0)
            End If
            Return Nothing
        End Function

        ''' <summary>
        ''' Returns a copy of this with the KeyKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithKeyKeyword(keyKeyword As SyntaxToken) As FieldInitializerSyntax
            Return WithKeyKeywordCore(keyKeyword)
        End Function
        Friend MustOverride Function WithKeyKeywordCore(keyKeyword As SyntaxToken) As FieldInitializerSyntax

    End Class

    ''' <summary>
    ''' Represent a field initializer in a With {...} initializer where the field name
    ''' is inferred from the initializer expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InferredFieldInitializer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InferredFieldInitializerSyntax
        Inherits FieldInitializerSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InferredFieldInitializerSyntax(kind, errors, annotations, keyKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The optional "Key" keyword.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property KeyKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InferredFieldInitializerSyntax)._keyKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetKeyKeywordCore() As SyntaxToken
            Return Me.KeyKeyword
        End Function

        Friend Overrides Function WithKeyKeywordCore(keyKeyword As SyntaxToken) As FieldInitializerSyntax
            Return WithKeyKeyword(keyKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the KeyKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyKeyword(keyKeyword as SyntaxToken) As InferredFieldInitializerSyntax
            return Update(keyKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The value being assigned.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As InferredFieldInitializerSyntax
            return Update(Me.KeyKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInferredFieldInitializer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInferredFieldInitializer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyKeyword">
        ''' The value for the KeyKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(keyKeyword As SyntaxToken, expression As ExpressionSyntax) As InferredFieldInitializerSyntax
            If keyKeyword <> Me.KeyKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.InferredFieldInitializer(keyKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represent a named field initializer in a With {...} initializer, such as ".x =
    ''' expr".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NamedFieldInitializer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NamedFieldInitializerSyntax
        Inherits FieldInitializerSyntax

        Friend _name as IdentifierNameSyntax
        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyKeyword As InternalSyntax.KeywordSyntax, dotToken As InternalSyntax.PunctuationSyntax, name As IdentifierNameSyntax, equalsToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamedFieldInitializerSyntax(kind, errors, annotations, keyKeyword, dotToken, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax), equalsToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The optional "Key" keyword.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property KeyKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamedFieldInitializerSyntax)._keyKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetKeyKeywordCore() As SyntaxToken
            Return Me.KeyKeyword
        End Function

        Friend Overrides Function WithKeyKeywordCore(keyKeyword As SyntaxToken) As FieldInitializerSyntax
            Return WithKeyKeyword(keyKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the KeyKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyKeyword(keyKeyword as SyntaxToken) As NamedFieldInitializerSyntax
            return Update(keyKeyword, Me.DotToken, Me.Name, Me.EqualsToken, Me.Expression)
        End Function

        ''' <summary>
        ''' The "." token.
        ''' </summary>
        Public ReadOnly Property DotToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamedFieldInitializerSyntax)._dotToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DotToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDotToken(dotToken as SyntaxToken) As NamedFieldInitializerSyntax
            return Update(Me.KeyKeyword, dotToken, Me.Name, Me.EqualsToken, Me.Expression)
        End Function

        ''' <summary>
        ''' The name of the field being initialized.
        ''' </summary>
        Public ReadOnly Property Name As IdentifierNameSyntax
            Get
                Return GetRed(_name, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as IdentifierNameSyntax) As NamedFieldInitializerSyntax
            return Update(Me.KeyKeyword, Me.DotToken, name, Me.EqualsToken, Me.Expression)
        End Function

        ''' <summary>
        ''' The "=" token.
        ''' </summary>
        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamedFieldInitializerSyntax)._equalsToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As NamedFieldInitializerSyntax
            return Update(Me.KeyKeyword, Me.DotToken, Me.Name, equalsToken, Me.Expression)
        End Function

        ''' <summary>
        ''' The value being assigned to the field.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As NamedFieldInitializerSyntax
            return Update(Me.KeyKeyword, Me.DotToken, Me.Name, Me.EqualsToken, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._name
                Case 4
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Name
                Case 4
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNamedFieldInitializer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNamedFieldInitializer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyKeyword">
        ''' The value for the KeyKeyword property.
        ''' </param>
        ''' <param name="dotToken">
        ''' The value for the DotToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(keyKeyword As SyntaxToken, dotToken As SyntaxToken, name As IdentifierNameSyntax, equalsToken As SyntaxToken, expression As ExpressionSyntax) As NamedFieldInitializerSyntax
            If keyKeyword <> Me.KeyKeyword OrElse dotToken <> Me.DotToken OrElse name IsNot Me.Name OrElse equalsToken <> Me.EqualsToken OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.NamedFieldInitializer(keyKeyword, dotToken, name, equalsToken, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an "= initializer" clause in a declaration for a variable, parameter
    ''' or automatic property.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EqualsValue"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EqualsValueSyntax
        Inherits VisualBasicSyntaxNode

        Friend _value as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), equalsToken As InternalSyntax.PunctuationSyntax, value As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EqualsValueSyntax(kind, errors, annotations, equalsToken, DirectCast(value.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "=" token.
        ''' </summary>
        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EqualsValueSyntax)._equalsToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As EqualsValueSyntax
            return Update(equalsToken, Me.Value)
        End Function

        ''' <summary>
        ''' The expression used as the initial value.
        ''' </summary>
        Public ReadOnly Property Value As ExpressionSyntax
            Get
                Return GetRed(_value, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Value property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithValue(value as ExpressionSyntax) As EqualsValueSyntax
            return Update(Me.EqualsToken, value)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._value
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Value
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEqualsValue(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEqualsValue(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        ''' <param name="value">
        ''' The value for the Value property.
        ''' </param>
        Public Function Update(equalsToken As SyntaxToken, value As ExpressionSyntax) As EqualsValueSyntax
            If equalsToken <> Me.EqualsToken OrElse value IsNot Me.Value Then
                Dim newNode = SyntaxFactory.EqualsValue(equalsToken, value)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represent a parameter to a method, property, constructor, etc.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.Parameter"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ParameterSyntax
        Inherits VisualBasicSyntaxNode

        Friend _attributeLists as SyntaxNode
        Friend _identifier as ModifiedIdentifierSyntax
        Friend _asClause as SimpleAsClauseSyntax
        Friend _default as EqualsValueSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, identifier As ModifiedIdentifierSyntax, asClause As SimpleAsClauseSyntax, [default] As EqualsValueSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, DirectCast(identifier.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModifiedIdentifierSyntax), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing), if([default] IsNot Nothing, DirectCast([default].Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EqualsValueSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this parameter. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As ParameterSyntax
            return Update(attributeLists, Me.Modifiers, Me.Identifier, Me.AsClause, Me.Default)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As ParameterSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        ''' <summary>
        ''' A list of the modifier tokens "ByVal", "ByRef", "Optional" or "ParamArray" that
        ''' modify this parameter.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As ParameterSyntax
            return Update(Me.AttributeLists, modifiers, Me.Identifier, Me.AsClause, Me.Default)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As ParameterSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        ''' <summary>
        ''' The name of the parameter, including any "?" or "()" modifiers.
        ''' </summary>
        Public ReadOnly Property Identifier As ModifiedIdentifierSyntax
            Get
                Return GetRed(_identifier, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as ModifiedIdentifierSyntax) As ParameterSyntax
            return Update(Me.AttributeLists, Me.Modifiers, identifier, Me.AsClause, Me.Default)
        End Function

        ''' <summary>
        ''' If present, the "As type-name" clause describing the type of the parameter. If
        ''' no As clause is present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As ParameterSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.Identifier, asClause, Me.Default)
        End Function

        ''' <summary>
        ''' If present, an initializer with the default value of the parameter. If no
        ''' default value is present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property [Default] As EqualsValueSyntax
            Get
                Return GetRed(_default, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the [Default] property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDefault([default] as EqualsValueSyntax) As ParameterSyntax
            return Update(Me.AttributeLists, Me.Modifiers, Me.Identifier, Me.AsClause, [default])
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 2
                    Return Me._identifier
                Case 3
                    Return Me._asClause
                Case 4
                    Return Me._default
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 2
                    Return Me.Identifier
                Case 3
                    Return Me.AsClause
                Case 4
                    Return Me.[Default]
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitParameter(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitParameter(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="default">
        ''' The value for the Default property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, identifier As ModifiedIdentifierSyntax, asClause As SimpleAsClauseSyntax, [default] As EqualsValueSyntax) As ParameterSyntax
            If attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse identifier IsNot Me.Identifier OrElse asClause IsNot Me.AsClause OrElse [default] IsNot Me.[Default] Then
                Dim newNode = SyntaxFactory.Parameter(attributeLists, modifiers, identifier, asClause, [default])
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an identifier with optional "?" or "()" or "(,,,)" modifiers, as
    ''' used in parameter declarations and variable declarations.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ModifiedIdentifier"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ModifiedIdentifierSyntax
        Inherits VisualBasicSyntaxNode

        Friend _arrayBounds as ArgumentListSyntax
        Friend _arrayRankSpecifiers as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As InternalSyntax.IdentifierTokenSyntax, nullable As InternalSyntax.PunctuationSyntax, arrayBounds As ArgumentListSyntax, arrayRankSpecifiers As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModifiedIdentifierSyntax(kind, errors, annotations, identifier, nullable, if(arrayBounds IsNot Nothing, DirectCast(arrayBounds.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax), Nothing), if(arrayRankSpecifiers IsNot Nothing, arrayRankSpecifiers.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The identifier that names the item being declared.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModifiedIdentifierSyntax)._identifier, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As ModifiedIdentifierSyntax
            return Update(identifier, Me.Nullable, Me.ArrayBounds, Me.ArrayRankSpecifiers)
        End Function

        ''' <summary>
        ''' The "?" token that indicates a nullable type.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Nullable As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModifiedIdentifierSyntax)._nullable
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Nullable property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNullable(nullable as SyntaxToken) As ModifiedIdentifierSyntax
            return Update(Me.Identifier, nullable, Me.ArrayBounds, Me.ArrayRankSpecifiers)
        End Function

        ''' <summary>
        ''' The optional array bounds, such as "(4)" or "(0 to 5, 0 To 6)".
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ArrayBounds As ArgumentListSyntax
            Get
                Return GetRed(_arrayBounds, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArrayBounds property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArrayBounds(arrayBounds as ArgumentListSyntax) As ModifiedIdentifierSyntax
            return Update(Me.Identifier, Me.Nullable, arrayBounds, Me.ArrayRankSpecifiers)
        End Function

        Public Shadows Function AddArrayBoundsArguments(ParamArray items As ArgumentSyntax()) As ModifiedIdentifierSyntax
            Dim _child = If(Me.ArrayBounds IsNot Nothing, Me.ArrayBounds, SyntaxFactory.ArgumentList())
            Return Me.WithArrayBounds(_child.AddArguments(items))
        End Function

        ''' <summary>
        ''' A list of array modifiers for the type. If no array modifiers were present, an
        ''' empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property ArrayRankSpecifiers As SyntaxList(Of ArrayRankSpecifierSyntax)
            Get
                Dim listNode = GetRed(_arrayRankSpecifiers, 3)
                Return new SyntaxList(Of ArrayRankSpecifierSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArrayRankSpecifiers property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithArrayRankSpecifiers(arrayRankSpecifiers as SyntaxList(Of ArrayRankSpecifierSyntax)) As ModifiedIdentifierSyntax
            return Update(Me.Identifier, Me.Nullable, Me.ArrayBounds, arrayRankSpecifiers)
        End Function

        Public Shadows Function AddArrayRankSpecifiers(ParamArray items As ArrayRankSpecifierSyntax()) As ModifiedIdentifierSyntax
            Return Me.WithArrayRankSpecifiers(Me.ArrayRankSpecifiers.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._arrayBounds
                Case 3
                    Return Me._arrayRankSpecifiers
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.ArrayBounds
                Case 3
                    Return GetRed(_arrayRankSpecifiers, 3)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitModifiedIdentifier(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitModifiedIdentifier(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="nullable">
        ''' The value for the Nullable property.
        ''' </param>
        ''' <param name="arrayBounds">
        ''' The value for the ArrayBounds property.
        ''' </param>
        ''' <param name="arrayRankSpecifiers">
        ''' The value for the ArrayRankSpecifiers property.
        ''' </param>
        Public Function Update(identifier As SyntaxToken, nullable As SyntaxToken, arrayBounds As ArgumentListSyntax, arrayRankSpecifiers As SyntaxList(of ArrayRankSpecifierSyntax)) As ModifiedIdentifierSyntax
            If identifier <> Me.Identifier OrElse nullable <> Me.Nullable OrElse arrayBounds IsNot Me.ArrayBounds OrElse arrayRankSpecifiers <> Me.ArrayRankSpecifiers Then
                Dim newNode = SyntaxFactory.ModifiedIdentifier(identifier, nullable, arrayBounds, arrayRankSpecifiers)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a modifier that describes an array type, without bounds, such as
    ''' "()" or "(,)".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ArrayRankSpecifier"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ArrayRankSpecifierSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, commaTokens As GreenNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArrayRankSpecifierSyntax(kind, errors, annotations, openParenToken, commaTokens, closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArrayRankSpecifierSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As ArrayRankSpecifierSyntax
            return Update(openParenToken, Me.CommaTokens, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The comma tokens in the array type. There is one less comma than the rank.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property CommaTokens As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArrayRankSpecifierSyntax)._commaTokens
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CommaTokens property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaTokens(commaTokens as SyntaxTokenList) As ArrayRankSpecifierSyntax
            return Update(Me.OpenParenToken, commaTokens, Me.CloseParenToken)
        End Function

        Public Shadows Function AddCommaTokens(ParamArray items As SyntaxToken()) As ArrayRankSpecifierSyntax
            Return Me.WithCommaTokens(Me.CommaTokens.AddRange(items))
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArrayRankSpecifierSyntax)._closeParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As ArrayRankSpecifierSyntax
            return Update(Me.OpenParenToken, Me.CommaTokens, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitArrayRankSpecifier(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitArrayRankSpecifier(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="commaTokens">
        ''' The value for the CommaTokens property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, commaTokens As SyntaxTokenList, closeParenToken As SyntaxToken) As ArrayRankSpecifierSyntax
            If openParenToken <> Me.OpenParenToken OrElse commaTokens <> Me.CommaTokens OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.ArrayRankSpecifier(openParenToken, commaTokens, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a group of attributes within "&lt;" and "&gt;" brackets.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AttributeList"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AttributeListSyntax
        Inherits VisualBasicSyntaxNode

        Friend _attributes as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanToken As InternalSyntax.PunctuationSyntax, attributes As SyntaxNode, greaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeListSyntax(kind, errors, annotations, lessThanToken, if(attributes IsNot Nothing, attributes.Green, Nothing), greaterThanToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "&lt;" token.
        ''' </summary>
        Public ReadOnly Property LessThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeListSyntax)._lessThanToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLessThanToken(lessThanToken as SyntaxToken) As AttributeListSyntax
            return Update(lessThanToken, Me.Attributes, Me.GreaterThanToken)
        End Function

        ''' <summary>
        ''' A comma separated list of attribute declarations in this attribute list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Attributes As SeparatedSyntaxList(Of AttributeSyntax)
            Get
                Dim listNode = GetRed(_attributes, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of AttributeSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Attributes property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAttributes(attributes as SeparatedSyntaxList(Of AttributeSyntax)) As AttributeListSyntax
            return Update(Me.LessThanToken, attributes, Me.GreaterThanToken)
        End Function

        Public Shadows Function AddAttributes(ParamArray items As AttributeSyntax()) As AttributeListSyntax
            Return Me.WithAttributes(Me.Attributes.AddRange(items))
        End Function

        ''' <summary>
        ''' The "&gt;" token.
        ''' </summary>
        Public ReadOnly Property GreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeListSyntax)._greaterThanToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GreaterThanToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithGreaterThanToken(greaterThanToken as SyntaxToken) As AttributeListSyntax
            return Update(Me.LessThanToken, Me.Attributes, greaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._attributes
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_attributes, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAttributeList(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAttributeList(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanToken">
        ''' The value for the LessThanToken property.
        ''' </param>
        ''' <param name="attributes">
        ''' The value for the Attributes property.
        ''' </param>
        ''' <param name="greaterThanToken">
        ''' The value for the GreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanToken As SyntaxToken, attributes As SeparatedSyntaxList(Of AttributeSyntax), greaterThanToken As SyntaxToken) As AttributeListSyntax
            If lessThanToken <> Me.LessThanToken OrElse attributes <> Me.Attributes OrElse greaterThanToken <> Me.GreaterThanToken Then
                Dim newNode = SyntaxFactory.AttributeList(lessThanToken, attributes, greaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single attribute declaration within an attribute list.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.Attribute"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AttributeSyntax
        Inherits VisualBasicSyntaxNode

        Friend _target as AttributeTargetSyntax
        Friend _name as TypeSyntax
        Friend _argumentList as ArgumentListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), target As AttributeTargetSyntax, name As TypeSyntax, argumentList As ArgumentListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeSyntax(kind, errors, annotations, if(target IsNot Nothing, DirectCast(target.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeTargetSyntax), Nothing), DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), if(argumentList IsNot Nothing, DirectCast(argumentList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' Optional attribute target. Assembly|Module :
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Target As AttributeTargetSyntax
            Get
                Return GetRedAtZero(_target)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Target property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithTarget(target as AttributeTargetSyntax) As AttributeSyntax
            return Update(target, Me.Name, Me.ArgumentList)
        End Function

        ''' <summary>
        ''' The name of the attribute.
        ''' </summary>
        Public ReadOnly Property Name As TypeSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as TypeSyntax) As AttributeSyntax
            return Update(Me.Target, name, Me.ArgumentList)
        End Function

        ''' <summary>
        ''' The argument list, if present. If no argument list was supplied, Nothing is
        ''' returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ArgumentList As ArgumentListSyntax
            Get
                Return GetRed(_argumentList, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArgumentList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgumentList(argumentList as ArgumentListSyntax) As AttributeSyntax
            return Update(Me.Target, Me.Name, argumentList)
        End Function

        Public Shadows Function AddArgumentListArguments(ParamArray items As ArgumentSyntax()) As AttributeSyntax
            Dim _child = If(Me.ArgumentList IsNot Nothing, Me.ArgumentList, SyntaxFactory.ArgumentList())
            Return Me.WithArgumentList(_child.AddArguments(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._target
                Case 1
                    Return Me._name
                Case 2
                    Return Me._argumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Target
                Case 1
                    Return Me.Name
                Case 2
                    Return Me.ArgumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAttribute(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAttribute(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="target">
        ''' The value for the Target property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="argumentList">
        ''' The value for the ArgumentList property.
        ''' </param>
        Public Function Update(target As AttributeTargetSyntax, name As TypeSyntax, argumentList As ArgumentListSyntax) As AttributeSyntax
            If target IsNot Me.Target OrElse name IsNot Me.Name OrElse argumentList IsNot Me.ArgumentList Then
                Dim newNode = SyntaxFactory.Attribute(target, name, argumentList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single attribute declaration within an attribute list.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AttributeTarget"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AttributeTargetSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeModifier As InternalSyntax.KeywordSyntax, colonToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeTargetSyntax(kind, errors, annotations, attributeModifier, colonToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Assembly" or "Module" attribute modifier, is present. If no attribute
        ''' modifier is present, Nothing is returned.
        ''' </summary>
        Public ReadOnly Property AttributeModifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeTargetSyntax)._attributeModifier, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeModifier property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeModifier(attributeModifier as SyntaxToken) As AttributeTargetSyntax
            return Update(attributeModifier, Me.ColonToken)
        End Function

        ''' <summary>
        ''' The ":" token, if an attribute modifier is present. If no attribute modifier is
        ''' present, Nothing is returned.
        ''' </summary>
        Public ReadOnly Property ColonToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributeTargetSyntax)._colonToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ColonToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithColonToken(colonToken as SyntaxToken) As AttributeTargetSyntax
            return Update(Me.AttributeModifier, colonToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAttributeTarget(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAttributeTarget(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeModifier">
        ''' The value for the AttributeModifier property.
        ''' </param>
        ''' <param name="colonToken">
        ''' The value for the ColonToken property.
        ''' </param>
        Public Function Update(attributeModifier As SyntaxToken, colonToken As SyntaxToken) As AttributeTargetSyntax
            If attributeModifier <> Me.AttributeModifier OrElse colonToken <> Me.ColonToken Then
                Dim newNode = SyntaxFactory.AttributeTarget(attributeModifier, colonToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a file-level attribute, in which the attributes have no other
    ''' syntactic element they are attached to.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AttributesStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AttributesStatementSyntax
        Inherits DeclarationStatementSyntax

        Friend _attributeLists as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AttributesStatementSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The list of attribute lists.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As AttributesStatementSyntax
            return Update(attributeLists)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As AttributesStatementSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me._attributeLists
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return GetRedAtZero(_attributeLists)
            Else
                Return Nothing
            End If
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAttributesStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAttributesStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        Public Function Update(attributeLists As SyntaxList(of AttributeListSyntax)) As AttributesStatementSyntax
            If attributeLists <> Me.AttributeLists Then
                Dim newNode = SyntaxFactory.AttributesStatement(attributeLists)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represent an expression in a statement context. This may only be a invocation
    ''' or await expression in standard code but may be any expression in VB
    ''' Interactive code.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ExpressionStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ExpressionStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionStatementSyntax(kind, errors, annotations, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The expression.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRedAtZero(_expression)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As ExpressionStatementSyntax
            return Update(expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me._expression
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me.Expression
            Else
                Return Nothing
            End If
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitExpressionStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitExpressionStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(expression As ExpressionSyntax) As ExpressionStatementSyntax
            If expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.ExpressionStatement(expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represent a "? expression" "Print" statement in VB Interactive code.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.PrintStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class PrintStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), questionToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PrintStatementSyntax(kind, errors, annotations, questionToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' "?" token.
        ''' </summary>
        Public ReadOnly Property QuestionToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PrintStatementSyntax)._questionToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the QuestionToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithQuestionToken(questionToken as SyntaxToken) As PrintStatementSyntax
            return Update(questionToken, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression whose value is being output.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As PrintStatementSyntax
            return Update(Me.QuestionToken, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitPrintStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitPrintStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="questionToken">
        ''' The value for the QuestionToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(questionToken As SyntaxToken, expression As ExpressionSyntax) As PrintStatementSyntax
            If questionToken <> Me.QuestionToken OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.PrintStatement(questionToken, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a While...End While statement, including the While, body and End
    ''' While.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WhileBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WhileBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _whileStatement as WhileStatementSyntax
        Friend _statements as SyntaxNode
        Friend _endWhileStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), whileStatement As WhileStatementSyntax, statements As SyntaxNode, endWhileStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileBlockSyntax(kind, errors, annotations, DirectCast(whileStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endWhileStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The While statement that begins the block.
        ''' </summary>
        Public ReadOnly Property WhileStatement As WhileStatementSyntax
            Get
                Return GetRedAtZero(_whileStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhileStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithWhileStatement(whileStatement as WhileStatementSyntax) As WhileBlockSyntax
            return Update(whileStatement, Me.Statements, Me.EndWhileStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the While...End While. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As WhileBlockSyntax
            return Update(Me.WhileStatement, statements, Me.EndWhileStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As WhileBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' The End While statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndWhileStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endWhileStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndWhileStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndWhileStatement(endWhileStatement as EndBlockStatementSyntax) As WhileBlockSyntax
            return Update(Me.WhileStatement, Me.Statements, endWhileStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._whileStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endWhileStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.WhileStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndWhileStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWhileBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWhileBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="whileStatement">
        ''' The value for the WhileStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endWhileStatement">
        ''' The value for the EndWhileStatement property.
        ''' </param>
        Public Function Update(whileStatement As WhileStatementSyntax, statements As SyntaxList(of StatementSyntax), endWhileStatement As EndBlockStatementSyntax) As WhileBlockSyntax
            If whileStatement IsNot Me.WhileStatement OrElse statements <> Me.Statements OrElse endWhileStatement IsNot Me.EndWhileStatement Then
                Dim newNode = SyntaxFactory.WhileBlock(whileStatement, statements, endWhileStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an entire Using...End Using statement, including the Using, body and
    ''' End Using statements.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.UsingBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class UsingBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _usingStatement as UsingStatementSyntax
        Friend _statements as SyntaxNode
        Friend _endUsingStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), usingStatement As UsingStatementSyntax, statements As SyntaxNode, endUsingStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.UsingBlockSyntax(kind, errors, annotations, DirectCast(usingStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.UsingStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endUsingStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The UsingStatement that begins the Using...End Using block.
        ''' </summary>
        Public ReadOnly Property UsingStatement As UsingStatementSyntax
            Get
                Return GetRedAtZero(_usingStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the UsingStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithUsingStatement(usingStatement as UsingStatementSyntax) As UsingBlockSyntax
            return Update(usingStatement, Me.Statements, Me.EndUsingStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the Using...End Using block. This might be an empty
        ''' list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As UsingBlockSyntax
            return Update(Me.UsingStatement, statements, Me.EndUsingStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As UsingBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' The End Using statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndUsingStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endUsingStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndUsingStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndUsingStatement(endUsingStatement as EndBlockStatementSyntax) As UsingBlockSyntax
            return Update(Me.UsingStatement, Me.Statements, endUsingStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._usingStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endUsingStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.UsingStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndUsingStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitUsingBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitUsingBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="usingStatement">
        ''' The value for the UsingStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endUsingStatement">
        ''' The value for the EndUsingStatement property.
        ''' </param>
        Public Function Update(usingStatement As UsingStatementSyntax, statements As SyntaxList(of StatementSyntax), endUsingStatement As EndBlockStatementSyntax) As UsingBlockSyntax
            If usingStatement IsNot Me.UsingStatement OrElse statements <> Me.Statements OrElse endUsingStatement IsNot Me.EndUsingStatement Then
                Dim newNode = SyntaxFactory.UsingBlock(usingStatement, statements, endUsingStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a entire SyncLock...End SyncLock block, including the SyncLock
    ''' statement, the enclosed statements, and the End SyncLock statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SyncLockBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SyncLockBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _syncLockStatement as SyncLockStatementSyntax
        Friend _statements as SyntaxNode
        Friend _endSyncLockStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), syncLockStatement As SyncLockStatementSyntax, statements As SyntaxNode, endSyncLockStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SyncLockBlockSyntax(kind, errors, annotations, DirectCast(syncLockStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SyncLockStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endSyncLockStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The SyncLock statement that begins the block.
        ''' </summary>
        Public ReadOnly Property SyncLockStatement As SyncLockStatementSyntax
            Get
                Return GetRedAtZero(_syncLockStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SyncLockStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSyncLockStatement(syncLockStatement as SyncLockStatementSyntax) As SyncLockBlockSyntax
            return Update(syncLockStatement, Me.Statements, Me.EndSyncLockStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the SyncLock...End SyncLock statement. This might
        ''' be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As SyncLockBlockSyntax
            return Update(Me.SyncLockStatement, statements, Me.EndSyncLockStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As SyncLockBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' The End SyncLock statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndSyncLockStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endSyncLockStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndSyncLockStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndSyncLockStatement(endSyncLockStatement as EndBlockStatementSyntax) As SyncLockBlockSyntax
            return Update(Me.SyncLockStatement, Me.Statements, endSyncLockStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._syncLockStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endSyncLockStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.SyncLockStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndSyncLockStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSyncLockBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSyncLockBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="syncLockStatement">
        ''' The value for the SyncLockStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endSyncLockStatement">
        ''' The value for the EndSyncLockStatement property.
        ''' </param>
        Public Function Update(syncLockStatement As SyncLockStatementSyntax, statements As SyntaxList(of StatementSyntax), endSyncLockStatement As EndBlockStatementSyntax) As SyncLockBlockSyntax
            If syncLockStatement IsNot Me.SyncLockStatement OrElse statements <> Me.Statements OrElse endSyncLockStatement IsNot Me.EndSyncLockStatement Then
                Dim newNode = SyntaxFactory.SyncLockBlock(syncLockStatement, statements, endSyncLockStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a With...End With block, include the With statement, the body of the
    ''' block and the End With statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WithBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WithBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _withStatement as WithStatementSyntax
        Friend _statements as SyntaxNode
        Friend _endWithStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), withStatement As WithStatementSyntax, statements As SyntaxNode, endWithStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithBlockSyntax(kind, errors, annotations, DirectCast(withStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endWithStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The WithStatement that begins the With...End With block.
        ''' </summary>
        Public ReadOnly Property WithStatement As WithStatementSyntax
            Get
                Return GetRedAtZero(_withStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WithStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWithStatement(withStatement as WithStatementSyntax) As WithBlockSyntax
            return Update(withStatement, Me.Statements, Me.EndWithStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the With...End With block. This might be an empty
        ''' list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As WithBlockSyntax
            return Update(Me.WithStatement, statements, Me.EndWithStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As WithBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' The End With statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndWithStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endWithStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndWithStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndWithStatement(endWithStatement as EndBlockStatementSyntax) As WithBlockSyntax
            return Update(Me.WithStatement, Me.Statements, endWithStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._withStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endWithStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.WithStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndWithStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWithBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWithBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="withStatement">
        ''' The value for the WithStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endWithStatement">
        ''' The value for the EndWithStatement property.
        ''' </param>
        Public Function Update(withStatement As WithStatementSyntax, statements As SyntaxList(of StatementSyntax), endWithStatement As EndBlockStatementSyntax) As WithBlockSyntax
            If withStatement IsNot Me.WithStatement OrElse statements <> Me.Statements OrElse endWithStatement IsNot Me.EndWithStatement Then
                Dim newNode = SyntaxFactory.WithBlock(withStatement, statements, endWithStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the declaration of one or more local variables or constants.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.LocalDeclarationStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class LocalDeclarationStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _declarators as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), modifiers As GreenNode, declarators As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LocalDeclarationStatementSyntax(kind, errors, annotations, modifiers, if(declarators IsNot Nothing, declarators.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The modifier token (Static, Dim or Const) that introduces this local variable
        ''' declaration.
        ''' </summary>
        Public ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LocalDeclarationStatementSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As LocalDeclarationStatementSyntax
            return Update(modifiers, Me.Declarators)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As LocalDeclarationStatementSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        ''' <summary>
        ''' The list of variable declarator. Each declarator specifies one or more variable
        ''' names along with a type and/or initializer.
        ''' </summary>
        Public ReadOnly Property Declarators As SeparatedSyntaxList(Of VariableDeclaratorSyntax)
            Get
                Dim listNode = GetRed(_declarators, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of VariableDeclaratorSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Declarators property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDeclarators(declarators as SeparatedSyntaxList(Of VariableDeclaratorSyntax)) As LocalDeclarationStatementSyntax
            return Update(Me.Modifiers, declarators)
        End Function

        Public Shadows Function AddDeclarators(ParamArray items As VariableDeclaratorSyntax()) As LocalDeclarationStatementSyntax
            Return Me.WithDeclarators(Me.Declarators.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._declarators
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_declarators, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitLocalDeclarationStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitLocalDeclarationStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="declarators">
        ''' The value for the Declarators property.
        ''' </param>
        Public Function Update(modifiers As SyntaxTokenList, declarators As SeparatedSyntaxList(Of VariableDeclaratorSyntax)) As LocalDeclarationStatementSyntax
            If modifiers <> Me.Modifiers OrElse declarators <> Me.Declarators Then
                Dim newNode = SyntaxFactory.LocalDeclarationStatement(modifiers, declarators)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a label statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.LabelStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class LabelStatementSyntax
        Inherits ExecutableStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), labelToken As InternalSyntax.SyntaxToken, colonToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelStatementSyntax(kind, errors, annotations, labelToken, colonToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The name of the label. If the label is a line number, returns an IntegerLiteral
        ''' that is the line number, otherwise, returns an Identifier.
        ''' </summary>
        Public ReadOnly Property LabelToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelStatementSyntax)._labelToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LabelToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLabelToken(labelToken as SyntaxToken) As LabelStatementSyntax
            return Update(labelToken, Me.ColonToken)
        End Function

        ''' <summary>
        ''' The ":" token of the label statement.
        ''' </summary>
        Public ReadOnly Property ColonToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelStatementSyntax)._colonToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ColonToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithColonToken(colonToken as SyntaxToken) As LabelStatementSyntax
            return Update(Me.LabelToken, colonToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitLabelStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitLabelStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="labelToken">
        ''' The value for the LabelToken property.
        ''' </param>
        ''' <param name="colonToken">
        ''' The value for the ColonToken property.
        ''' </param>
        Public Function Update(labelToken As SyntaxToken, colonToken As SyntaxToken) As LabelStatementSyntax
            If labelToken <> Me.LabelToken OrElse colonToken <> Me.ColonToken Then
                Dim newNode = SyntaxFactory.LabelStatement(labelToken, colonToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "GoTo" statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GoToStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GoToStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _label as LabelSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), goToKeyword As InternalSyntax.KeywordSyntax, label As LabelSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GoToStatementSyntax(kind, errors, annotations, goToKeyword, DirectCast(label.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "GoTo" keyword.
        ''' </summary>
        Public ReadOnly Property GoToKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GoToStatementSyntax)._goToKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GoToKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithGoToKeyword(goToKeyword as SyntaxToken) As GoToStatementSyntax
            return Update(goToKeyword, Me.Label)
        End Function

        ''' <summary>
        ''' The name of the label. If the label is a line number, wraps an IntegerLiteral
        ''' that is the line number, otherwise, wraps an Identifier.
        ''' </summary>
        Public ReadOnly Property Label As LabelSyntax
            Get
                Return GetRed(_label, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Label property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLabel(label as LabelSyntax) As GoToStatementSyntax
            return Update(Me.GoToKeyword, label)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._label
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Label
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGoToStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGoToStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="goToKeyword">
        ''' The value for the GoToKeyword property.
        ''' </param>
        ''' <param name="label">
        ''' The value for the Label property.
        ''' </param>
        Public Function Update(goToKeyword As SyntaxToken, label As LabelSyntax) As GoToStatementSyntax
            If goToKeyword <> Me.GoToKeyword OrElse label IsNot Me.Label Then
                Dim newNode = SyntaxFactory.GoToStatement(goToKeyword, label)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A label for a GoTo, Resume, or On Error statement. An identifier, line number,
    ''' or next keyword.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.IdentifierLabel"/></description></item>
    ''' <item><description><see cref="SyntaxKind.NumericLabel"/></description></item>
    ''' <item><description><see cref="SyntaxKind.NextLabel"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class LabelSyntax
        Inherits ExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), labelToken As InternalSyntax.SyntaxToken)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelSyntax(kind, errors, annotations, labelToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The label name (identifier), line number (integer literal), or next keyword
        ''' token.
        ''' </summary>
        Public ReadOnly Property LabelToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelSyntax)._labelToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LabelToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLabelToken(labelToken as SyntaxToken) As LabelSyntax
            return Update(Me.Kind, labelToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitLabel(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitLabel(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="labelToken">
        ''' The value for the LabelToken property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, labelToken As SyntaxToken) As LabelSyntax
            If kind <> Me.Kind OrElse labelToken <> Me.LabelToken Then
                Dim newNode = SyntaxFactory.Label(kind, labelToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Stop" or "End" statement. The Kind can be used to determine which
    ''' kind of statement this is.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.StopStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EndStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class StopOrEndStatementSyntax
        Inherits ExecutableStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), stopOrEndKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StopOrEndStatementSyntax(kind, errors, annotations, stopOrEndKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Stop" or "End" keyword.
        ''' </summary>
        Public ReadOnly Property StopOrEndKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.StopOrEndStatementSyntax)._stopOrEndKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StopOrEndKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithStopOrEndKeyword(stopOrEndKeyword as SyntaxToken) As StopOrEndStatementSyntax
            return Update(Me.Kind, stopOrEndKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitStopOrEndStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitStopOrEndStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="stopOrEndKeyword">
        ''' The value for the StopOrEndKeyword property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, stopOrEndKeyword As SyntaxToken) As StopOrEndStatementSyntax
            If kind <> Me.Kind OrElse stopOrEndKeyword <> Me.StopOrEndKeyword Then
                Dim newNode = SyntaxFactory.StopOrEndStatement(kind, stopOrEndKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' An exit statement. The kind of block being exited can be found by examining the
    ''' Kind.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ExitDoStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitForStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitSubStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitFunctionStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitOperatorStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitPropertyStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitTryStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitSelectStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExitWhileStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ExitStatementSyntax
        Inherits ExecutableStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), exitKeyword As InternalSyntax.KeywordSyntax, blockKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExitStatementSyntax(kind, errors, annotations, exitKeyword, blockKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Exit" keyword.
        ''' </summary>
        Public ReadOnly Property ExitKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExitStatementSyntax)._exitKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ExitKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExitKeyword(exitKeyword as SyntaxToken) As ExitStatementSyntax
            return Update(Me.Kind, exitKeyword, Me.BlockKeyword)
        End Function

        ''' <summary>
        ''' The keyword describing the block to exit.
        ''' </summary>
        Public ReadOnly Property BlockKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExitStatementSyntax)._blockKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the BlockKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithBlockKeyword(blockKeyword as SyntaxToken) As ExitStatementSyntax
            return Update(Me.Kind, Me.ExitKeyword, blockKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitExitStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitExitStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="exitKeyword">
        ''' The value for the ExitKeyword property.
        ''' </param>
        ''' <param name="blockKeyword">
        ''' The value for the BlockKeyword property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, exitKeyword As SyntaxToken, blockKeyword As SyntaxToken) As ExitStatementSyntax
            If kind <> Me.Kind OrElse exitKeyword <> Me.ExitKeyword OrElse blockKeyword <> Me.BlockKeyword Then
                Dim newNode = SyntaxFactory.ExitStatement(kind, exitKeyword, blockKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Continue (block)" statement. THe kind of block referenced can be
    ''' determined by examining the Kind.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ContinueWhileStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ContinueDoStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ContinueForStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ContinueStatementSyntax
        Inherits ExecutableStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), continueKeyword As InternalSyntax.KeywordSyntax, blockKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ContinueStatementSyntax(kind, errors, annotations, continueKeyword, blockKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Continue" keyword.
        ''' </summary>
        Public ReadOnly Property ContinueKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ContinueStatementSyntax)._continueKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ContinueKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithContinueKeyword(continueKeyword as SyntaxToken) As ContinueStatementSyntax
            return Update(Me.Kind, continueKeyword, Me.BlockKeyword)
        End Function

        ''' <summary>
        ''' The "Do", "For" or "While" keyword that identifies the kind of loop being
        ''' continued.
        ''' </summary>
        Public ReadOnly Property BlockKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ContinueStatementSyntax)._blockKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the BlockKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithBlockKeyword(blockKeyword as SyntaxToken) As ContinueStatementSyntax
            return Update(Me.Kind, Me.ContinueKeyword, blockKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitContinueStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitContinueStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="continueKeyword">
        ''' The value for the ContinueKeyword property.
        ''' </param>
        ''' <param name="blockKeyword">
        ''' The value for the BlockKeyword property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, continueKeyword As SyntaxToken, blockKeyword As SyntaxToken) As ContinueStatementSyntax
            If kind <> Me.Kind OrElse continueKeyword <> Me.ContinueKeyword OrElse blockKeyword <> Me.BlockKeyword Then
                Dim newNode = SyntaxFactory.ContinueStatement(kind, continueKeyword, blockKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Return" statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ReturnStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ReturnStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), returnKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReturnStatementSyntax(kind, errors, annotations, returnKeyword, if(expression IsNot Nothing, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Return" keyword.
        ''' </summary>
        Public ReadOnly Property ReturnKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReturnStatementSyntax)._returnKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ReturnKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithReturnKeyword(returnKeyword as SyntaxToken) As ReturnStatementSyntax
            return Update(returnKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression being returned, if present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As ReturnStatementSyntax
            return Update(Me.ReturnKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitReturnStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitReturnStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="returnKeyword">
        ''' The value for the ReturnKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(returnKeyword As SyntaxToken, expression As ExpressionSyntax) As ReturnStatementSyntax
            If returnKeyword <> Me.ReturnKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.ReturnStatement(returnKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single-line "If ... Then ... Else ..." statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SingleLineIfStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SingleLineIfStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _condition as ExpressionSyntax
        Friend _statements as SyntaxNode
        Friend _elseClause as SingleLineElseClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), ifKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax, thenKeyword As InternalSyntax.KeywordSyntax, statements As SyntaxNode, elseClause As SingleLineElseClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SingleLineIfStatementSyntax(kind, errors, annotations, ifKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), thenKeyword, if(statements IsNot Nothing, statements.Green, Nothing), if(elseClause IsNot Nothing, DirectCast(elseClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SingleLineElseClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "If" keyword.
        ''' </summary>
        Public ReadOnly Property IfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SingleLineIfStatementSyntax)._ifKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIfKeyword(ifKeyword as SyntaxToken) As SingleLineIfStatementSyntax
            return Update(ifKeyword, Me.Condition, Me.ThenKeyword, Me.Statements, Me.ElseClause)
        End Function

        ''' <summary>
        ''' The condition expression to be evaluated.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As SingleLineIfStatementSyntax
            return Update(Me.IfKeyword, condition, Me.ThenKeyword, Me.Statements, Me.ElseClause)
        End Function

        ''' <summary>
        ''' The "Then" keyword.
        ''' </summary>
        Public ReadOnly Property ThenKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SingleLineIfStatementSyntax)._thenKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ThenKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithThenKeyword(thenKeyword as SyntaxToken) As SingleLineIfStatementSyntax
            return Update(Me.IfKeyword, Me.Condition, thenKeyword, Me.Statements, Me.ElseClause)
        End Function

        ''' <summary>
        ''' A list of statements to be executed if the condition expression evaluates as
        ''' true. Multiple statements must be separated by colons.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 3)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As SingleLineIfStatementSyntax
            return Update(Me.IfKeyword, Me.Condition, Me.ThenKeyword, statements, Me.ElseClause)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As SingleLineIfStatementSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' An "Else" clause to be executed if the condition expression evaluates as false.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ElseClause As SingleLineElseClauseSyntax
            Get
                Return GetRed(_elseClause, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseClause(elseClause as SingleLineElseClauseSyntax) As SingleLineIfStatementSyntax
            return Update(Me.IfKeyword, Me.Condition, Me.ThenKeyword, Me.Statements, elseClause)
        End Function

        Public Shadows Function AddElseClauseStatements(ParamArray items As StatementSyntax()) As SingleLineIfStatementSyntax
            Dim _child = If(Me.ElseClause IsNot Nothing, Me.ElseClause, SyntaxFactory.SingleLineElseClause())
            Return Me.WithElseClause(_child.AddStatements(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._condition
                Case 3
                    Return Me._statements
                Case 4
                    Return Me._elseClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Condition
                Case 3
                    Return GetRed(_statements, 3)
                Case 4
                    Return Me.ElseClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSingleLineIfStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSingleLineIfStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="ifKeyword">
        ''' The value for the IfKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        ''' <param name="thenKeyword">
        ''' The value for the ThenKeyword property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="elseClause">
        ''' The value for the ElseClause property.
        ''' </param>
        Public Function Update(ifKeyword As SyntaxToken, condition As ExpressionSyntax, thenKeyword As SyntaxToken, statements As SyntaxList(of StatementSyntax), elseClause As SingleLineElseClauseSyntax) As SingleLineIfStatementSyntax
            If ifKeyword <> Me.IfKeyword OrElse condition IsNot Me.Condition OrElse thenKeyword <> Me.ThenKeyword OrElse statements <> Me.Statements OrElse elseClause IsNot Me.ElseClause Then
                Dim newNode = SyntaxFactory.SingleLineIfStatement(ifKeyword, condition, thenKeyword, statements, elseClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Else ..." clause of a single-line "If" statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SingleLineElseClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SingleLineElseClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _statements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elseKeyword As InternalSyntax.KeywordSyntax, statements As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SingleLineElseClauseSyntax(kind, errors, annotations, elseKeyword, if(statements IsNot Nothing, statements.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Else" keyword.
        ''' </summary>
        Public ReadOnly Property ElseKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SingleLineElseClauseSyntax)._elseKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseKeyword(elseKeyword as SyntaxToken) As SingleLineElseClauseSyntax
            return Update(elseKeyword, Me.Statements)
        End Function

        ''' <summary>
        ''' A list of statements to be executed. Multiple statements must be separated by
        ''' colons.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As SingleLineElseClauseSyntax
            return Update(Me.ElseKeyword, statements)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As SingleLineElseClauseSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._statements
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_statements, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSingleLineElseClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSingleLineElseClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elseKeyword">
        ''' The value for the ElseKeyword property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        Public Function Update(elseKeyword As SyntaxToken, statements As SyntaxList(of StatementSyntax)) As SingleLineElseClauseSyntax
            If elseKeyword <> Me.ElseKeyword OrElse statements <> Me.Statements Then
                Dim newNode = SyntaxFactory.SingleLineElseClause(elseKeyword, statements)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a multi-line "If ... Then ... ElseIf ... Then ... Else ... End If"
    ''' block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.MultiLineIfBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MultiLineIfBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _ifStatement as IfStatementSyntax
        Friend _statements as SyntaxNode
        Friend _elseIfBlocks as SyntaxNode
        Friend _elseBlock as ElseBlockSyntax
        Friend _endIfStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), ifStatement As IfStatementSyntax, statements As SyntaxNode, elseIfBlocks As SyntaxNode, elseBlock As ElseBlockSyntax, endIfStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MultiLineIfBlockSyntax(kind, errors, annotations, DirectCast(ifStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), if(elseIfBlocks IsNot Nothing, elseIfBlocks.Green, Nothing), if(elseBlock IsNot Nothing, DirectCast(elseBlock.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseBlockSyntax), Nothing), DirectCast(endIfStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "If" statement that begins the "If" block.
        ''' </summary>
        Public ReadOnly Property IfStatement As IfStatementSyntax
            Get
                Return GetRedAtZero(_ifStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IfStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIfStatement(ifStatement as IfStatementSyntax) As MultiLineIfBlockSyntax
            return Update(ifStatement, Me.Statements, Me.ElseIfBlocks, Me.ElseBlock, Me.EndIfStatement)
        End Function

        ''' <summary>
        ''' A list of statements to be executed if the condition expression evaluates as
        ''' true.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As MultiLineIfBlockSyntax
            return Update(Me.IfStatement, statements, Me.ElseIfBlocks, Me.ElseBlock, Me.EndIfStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As MultiLineIfBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' A list of "ElseIf" blocks to be evaluated, in order, if the condition
        ''' expression of the "If" statement evaluates as false.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property ElseIfBlocks As SyntaxList(Of ElseIfBlockSyntax)
            Get
                Dim listNode = GetRed(_elseIfBlocks, 2)
                Return new SyntaxList(Of ElseIfBlockSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseIfBlocks property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseIfBlocks(elseIfBlocks as SyntaxList(Of ElseIfBlockSyntax)) As MultiLineIfBlockSyntax
            return Update(Me.IfStatement, Me.Statements, elseIfBlocks, Me.ElseBlock, Me.EndIfStatement)
        End Function

        Public Shadows Function AddElseIfBlocks(ParamArray items As ElseIfBlockSyntax()) As MultiLineIfBlockSyntax
            Return Me.WithElseIfBlocks(Me.ElseIfBlocks.AddRange(items))
        End Function

        ''' <summary>
        ''' An "Else" block to be executed if the condition expression of the "If"
        ''' statement and all "ElseIf" blocks evaluate as false.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ElseBlock As ElseBlockSyntax
            Get
                Return GetRed(_elseBlock, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseBlock property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseBlock(elseBlock as ElseBlockSyntax) As MultiLineIfBlockSyntax
            return Update(Me.IfStatement, Me.Statements, Me.ElseIfBlocks, elseBlock, Me.EndIfStatement)
        End Function

        Public Shadows Function AddElseBlockStatements(ParamArray items As StatementSyntax()) As MultiLineIfBlockSyntax
            Dim _child = If(Me.ElseBlock IsNot Nothing, Me.ElseBlock, SyntaxFactory.ElseBlock())
            Return Me.WithElseBlock(_child.AddStatements(items))
        End Function

        ''' <summary>
        ''' Then "End If" statement.
        ''' </summary>
        Public ReadOnly Property EndIfStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endIfStatement, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndIfStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndIfStatement(endIfStatement as EndBlockStatementSyntax) As MultiLineIfBlockSyntax
            return Update(Me.IfStatement, Me.Statements, Me.ElseIfBlocks, Me.ElseBlock, endIfStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._ifStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._elseIfBlocks
                Case 3
                    Return Me._elseBlock
                Case 4
                    Return Me._endIfStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.IfStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return GetRed(_elseIfBlocks, 2)
                Case 3
                    Return Me.ElseBlock
                Case 4
                    Return Me.EndIfStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMultiLineIfBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMultiLineIfBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="ifStatement">
        ''' The value for the IfStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="elseIfBlocks">
        ''' The value for the ElseIfBlocks property.
        ''' </param>
        ''' <param name="elseBlock">
        ''' The value for the ElseBlock property.
        ''' </param>
        ''' <param name="endIfStatement">
        ''' The value for the EndIfStatement property.
        ''' </param>
        Public Function Update(ifStatement As IfStatementSyntax, statements As SyntaxList(of StatementSyntax), elseIfBlocks As SyntaxList(of ElseIfBlockSyntax), elseBlock As ElseBlockSyntax, endIfStatement As EndBlockStatementSyntax) As MultiLineIfBlockSyntax
            If ifStatement IsNot Me.IfStatement OrElse statements <> Me.Statements OrElse elseIfBlocks <> Me.ElseIfBlocks OrElse elseBlock IsNot Me.ElseBlock OrElse endIfStatement IsNot Me.EndIfStatement Then
                Dim newNode = SyntaxFactory.MultiLineIfBlock(ifStatement, statements, elseIfBlocks, elseBlock, endIfStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "If ... Then" statement that begins a multi-line "If" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.IfStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class IfStatementSyntax
        Inherits StatementSyntax

        Friend _condition as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), ifKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax, thenKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfStatementSyntax(kind, errors, annotations, ifKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), thenKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "If" keyword.
        ''' </summary>
        Public ReadOnly Property IfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfStatementSyntax)._ifKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIfKeyword(ifKeyword as SyntaxToken) As IfStatementSyntax
            return Update(ifKeyword, Me.Condition, Me.ThenKeyword)
        End Function

        ''' <summary>
        ''' The condition expression to be evaluated.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As IfStatementSyntax
            return Update(Me.IfKeyword, condition, Me.ThenKeyword)
        End Function

        ''' <summary>
        ''' The "Then" keyword.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ThenKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfStatementSyntax)._thenKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(2), Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ThenKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithThenKeyword(thenKeyword as SyntaxToken) As IfStatementSyntax
            return Update(Me.IfKeyword, Me.Condition, thenKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitIfStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitIfStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="ifKeyword">
        ''' The value for the IfKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        ''' <param name="thenKeyword">
        ''' The value for the ThenKeyword property.
        ''' </param>
        Public Function Update(ifKeyword As SyntaxToken, condition As ExpressionSyntax, thenKeyword As SyntaxToken) As IfStatementSyntax
            If ifKeyword <> Me.IfKeyword OrElse condition IsNot Me.Condition OrElse thenKeyword <> Me.ThenKeyword Then
                Dim newNode = SyntaxFactory.IfStatement(ifKeyword, condition, thenKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an "ElseIf ... Then ..." block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ElseIfBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ElseIfBlockSyntax
        Inherits VisualBasicSyntaxNode

        Friend _elseIfStatement as ElseIfStatementSyntax
        Friend _statements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elseIfStatement As ElseIfStatementSyntax, statements As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseIfBlockSyntax(kind, errors, annotations, DirectCast(elseIfStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseIfStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "ElseIf ... Then" statement the begins the "ElseIf" block.
        ''' </summary>
        Public ReadOnly Property ElseIfStatement As ElseIfStatementSyntax
            Get
                Return GetRedAtZero(_elseIfStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseIfStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithElseIfStatement(elseIfStatement as ElseIfStatementSyntax) As ElseIfBlockSyntax
            return Update(elseIfStatement, Me.Statements)
        End Function

        ''' <summary>
        ''' A list of statements to be executed if the condition expression of the "ElseIf"
        ''' statement evaluates as true.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As ElseIfBlockSyntax
            return Update(Me.ElseIfStatement, statements)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As ElseIfBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._elseIfStatement
                Case 1
                    Return Me._statements
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ElseIfStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitElseIfBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitElseIfBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elseIfStatement">
        ''' The value for the ElseIfStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        Public Function Update(elseIfStatement As ElseIfStatementSyntax, statements As SyntaxList(of StatementSyntax)) As ElseIfBlockSyntax
            If elseIfStatement IsNot Me.ElseIfStatement OrElse statements <> Me.Statements Then
                Dim newNode = SyntaxFactory.ElseIfBlock(elseIfStatement, statements)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "ElseIf ... Then" statement that begins an "ElseIf" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ElseIfStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ElseIfStatementSyntax
        Inherits StatementSyntax

        Friend _condition as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elseIfKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax, thenKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseIfStatementSyntax(kind, errors, annotations, elseIfKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), thenKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "ElseIf" keyword.
        ''' </summary>
        Public ReadOnly Property ElseIfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseIfStatementSyntax)._elseIfKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseIfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseIfKeyword(elseIfKeyword as SyntaxToken) As ElseIfStatementSyntax
            return Update(elseIfKeyword, Me.Condition, Me.ThenKeyword)
        End Function

        ''' <summary>
        ''' The condition expression to be evaluated.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As ElseIfStatementSyntax
            return Update(Me.ElseIfKeyword, condition, Me.ThenKeyword)
        End Function

        ''' <summary>
        ''' The "Then" keyword.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ThenKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseIfStatementSyntax)._thenKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(2), Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ThenKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithThenKeyword(thenKeyword as SyntaxToken) As ElseIfStatementSyntax
            return Update(Me.ElseIfKeyword, Me.Condition, thenKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitElseIfStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitElseIfStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elseIfKeyword">
        ''' The value for the ElseIfKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        ''' <param name="thenKeyword">
        ''' The value for the ThenKeyword property.
        ''' </param>
        Public Function Update(elseIfKeyword As SyntaxToken, condition As ExpressionSyntax, thenKeyword As SyntaxToken) As ElseIfStatementSyntax
            If elseIfKeyword <> Me.ElseIfKeyword OrElse condition IsNot Me.Condition OrElse thenKeyword <> Me.ThenKeyword Then
                Dim newNode = SyntaxFactory.ElseIfStatement(elseIfKeyword, condition, thenKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an "Else ..." block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ElseBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ElseBlockSyntax
        Inherits VisualBasicSyntaxNode

        Friend _elseStatement as ElseStatementSyntax
        Friend _statements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elseStatement As ElseStatementSyntax, statements As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseBlockSyntax(kind, errors, annotations, DirectCast(elseStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Else" statement that begins the "Else" block.
        ''' </summary>
        Public ReadOnly Property ElseStatement As ElseStatementSyntax
            Get
                Return GetRedAtZero(_elseStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseStatement(elseStatement as ElseStatementSyntax) As ElseBlockSyntax
            return Update(elseStatement, Me.Statements)
        End Function

        ''' <summary>
        ''' A list of statements to be executed.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As ElseBlockSyntax
            return Update(Me.ElseStatement, statements)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As ElseBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._elseStatement
                Case 1
                    Return Me._statements
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ElseStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitElseBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitElseBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elseStatement">
        ''' The value for the ElseStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        Public Function Update(elseStatement As ElseStatementSyntax, statements As SyntaxList(of StatementSyntax)) As ElseBlockSyntax
            If elseStatement IsNot Me.ElseStatement OrElse statements <> Me.Statements Then
                Dim newNode = SyntaxFactory.ElseBlock(elseStatement, statements)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Else" statement that begins an "Else" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ElseStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ElseStatementSyntax
        Inherits StatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elseKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseStatementSyntax(kind, errors, annotations, elseKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Else" keyword.
        ''' </summary>
        Public ReadOnly Property ElseKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseStatementSyntax)._elseKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseKeyword(elseKeyword as SyntaxToken) As ElseStatementSyntax
            return Update(elseKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitElseStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitElseStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elseKeyword">
        ''' The value for the ElseKeyword property.
        ''' </param>
        Public Function Update(elseKeyword As SyntaxToken) As ElseStatementSyntax
            If elseKeyword <> Me.ElseKeyword Then
                Dim newNode = SyntaxFactory.ElseStatement(elseKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Try ... Catch ... Finally ... End Try" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TryBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TryBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _tryStatement as TryStatementSyntax
        Friend _statements as SyntaxNode
        Friend _catchBlocks as SyntaxNode
        Friend _finallyBlock as FinallyBlockSyntax
        Friend _endTryStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), tryStatement As TryStatementSyntax, statements As SyntaxNode, catchBlocks As SyntaxNode, finallyBlock As FinallyBlockSyntax, endTryStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryBlockSyntax(kind, errors, annotations, DirectCast(tryStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), if(catchBlocks IsNot Nothing, catchBlocks.Green, Nothing), if(finallyBlock IsNot Nothing, DirectCast(finallyBlock.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FinallyBlockSyntax), Nothing), DirectCast(endTryStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Try" statement that begins the "Try" block.
        ''' </summary>
        Public ReadOnly Property TryStatement As TryStatementSyntax
            Get
                Return GetRedAtZero(_tryStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TryStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTryStatement(tryStatement as TryStatementSyntax) As TryBlockSyntax
            return Update(tryStatement, Me.Statements, Me.CatchBlocks, Me.FinallyBlock, Me.EndTryStatement)
        End Function

        ''' <summary>
        ''' A list of statements to be executed.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As TryBlockSyntax
            return Update(Me.TryStatement, statements, Me.CatchBlocks, Me.FinallyBlock, Me.EndTryStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As TryBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' A list of "Catch" blocks which may be executed if an exception is thrown while
        ''' executing the statements in the "Try" block.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property CatchBlocks As SyntaxList(Of CatchBlockSyntax)
            Get
                Dim listNode = GetRed(_catchBlocks, 2)
                Return new SyntaxList(Of CatchBlockSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CatchBlocks property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCatchBlocks(catchBlocks as SyntaxList(Of CatchBlockSyntax)) As TryBlockSyntax
            return Update(Me.TryStatement, Me.Statements, catchBlocks, Me.FinallyBlock, Me.EndTryStatement)
        End Function

        Public Shadows Function AddCatchBlocks(ParamArray items As CatchBlockSyntax()) As TryBlockSyntax
            Return Me.WithCatchBlocks(Me.CatchBlocks.AddRange(items))
        End Function

        ''' <summary>
        ''' A "Finally" block to be executed before execution leaves the "Try" block.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property FinallyBlock As FinallyBlockSyntax
            Get
                Return GetRed(_finallyBlock, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FinallyBlock property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithFinallyBlock(finallyBlock as FinallyBlockSyntax) As TryBlockSyntax
            return Update(Me.TryStatement, Me.Statements, Me.CatchBlocks, finallyBlock, Me.EndTryStatement)
        End Function

        Public Shadows Function AddFinallyBlockStatements(ParamArray items As StatementSyntax()) As TryBlockSyntax
            Dim _child = If(Me.FinallyBlock IsNot Nothing, Me.FinallyBlock, SyntaxFactory.FinallyBlock())
            Return Me.WithFinallyBlock(_child.AddStatements(items))
        End Function

        ''' <summary>
        ''' The "End Try" statement.
        ''' </summary>
        Public ReadOnly Property EndTryStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endTryStatement, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndTryStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndTryStatement(endTryStatement as EndBlockStatementSyntax) As TryBlockSyntax
            return Update(Me.TryStatement, Me.Statements, Me.CatchBlocks, Me.FinallyBlock, endTryStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._tryStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._catchBlocks
                Case 3
                    Return Me._finallyBlock
                Case 4
                    Return Me._endTryStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.TryStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return GetRed(_catchBlocks, 2)
                Case 3
                    Return Me.FinallyBlock
                Case 4
                    Return Me.EndTryStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTryBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTryBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="tryStatement">
        ''' The value for the TryStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="catchBlocks">
        ''' The value for the CatchBlocks property.
        ''' </param>
        ''' <param name="finallyBlock">
        ''' The value for the FinallyBlock property.
        ''' </param>
        ''' <param name="endTryStatement">
        ''' The value for the EndTryStatement property.
        ''' </param>
        Public Function Update(tryStatement As TryStatementSyntax, statements As SyntaxList(of StatementSyntax), catchBlocks As SyntaxList(of CatchBlockSyntax), finallyBlock As FinallyBlockSyntax, endTryStatement As EndBlockStatementSyntax) As TryBlockSyntax
            If tryStatement IsNot Me.TryStatement OrElse statements <> Me.Statements OrElse catchBlocks <> Me.CatchBlocks OrElse finallyBlock IsNot Me.FinallyBlock OrElse endTryStatement IsNot Me.EndTryStatement Then
                Dim newNode = SyntaxFactory.TryBlock(tryStatement, statements, catchBlocks, finallyBlock, endTryStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Try" statement that begins a "Try" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TryStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TryStatementSyntax
        Inherits StatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), tryKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryStatementSyntax(kind, errors, annotations, tryKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Try" keyword.
        ''' </summary>
        Public ReadOnly Property TryKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryStatementSyntax)._tryKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TryKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTryKeyword(tryKeyword as SyntaxToken) As TryStatementSyntax
            return Update(tryKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTryStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTryStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="tryKeyword">
        ''' The value for the TryKeyword property.
        ''' </param>
        Public Function Update(tryKeyword As SyntaxToken) As TryStatementSyntax
            If tryKeyword <> Me.TryKeyword Then
                Dim newNode = SyntaxFactory.TryStatement(tryKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Catch ..." block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CatchBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CatchBlockSyntax
        Inherits VisualBasicSyntaxNode

        Friend _catchStatement as CatchStatementSyntax
        Friend _statements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), catchStatement As CatchStatementSyntax, statements As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CatchBlockSyntax(kind, errors, annotations, DirectCast(catchStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CatchStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Catch" statement that begins the "Catch" block.
        ''' </summary>
        Public ReadOnly Property CatchStatement As CatchStatementSyntax
            Get
                Return GetRedAtZero(_catchStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CatchStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCatchStatement(catchStatement as CatchStatementSyntax) As CatchBlockSyntax
            return Update(catchStatement, Me.Statements)
        End Function

        ''' <summary>
        ''' A list of statements to be executed if an exception is caught by the "Catch"
        ''' block.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As CatchBlockSyntax
            return Update(Me.CatchStatement, statements)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As CatchBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._catchStatement
                Case 1
                    Return Me._statements
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.CatchStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCatchBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCatchBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="catchStatement">
        ''' The value for the CatchStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        Public Function Update(catchStatement As CatchStatementSyntax, statements As SyntaxList(of StatementSyntax)) As CatchBlockSyntax
            If catchStatement IsNot Me.CatchStatement OrElse statements <> Me.Statements Then
                Dim newNode = SyntaxFactory.CatchBlock(catchStatement, statements)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Catch ... When ..." statement that begins a "Catch" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CatchStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CatchStatementSyntax
        Inherits StatementSyntax

        Friend _identifierName as IdentifierNameSyntax
        Friend _asClause as SimpleAsClauseSyntax
        Friend _whenClause as CatchFilterClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), catchKeyword As InternalSyntax.KeywordSyntax, identifierName As IdentifierNameSyntax, asClause As SimpleAsClauseSyntax, whenClause As CatchFilterClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CatchStatementSyntax(kind, errors, annotations, catchKeyword, if(identifierName IsNot Nothing, DirectCast(identifierName.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing), if(whenClause IsNot Nothing, DirectCast(whenClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CatchFilterClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Catch" keyword.
        ''' </summary>
        Public ReadOnly Property CatchKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CatchStatementSyntax)._catchKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CatchKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCatchKeyword(catchKeyword as SyntaxToken) As CatchStatementSyntax
            return Update(catchKeyword, Me.IdentifierName, Me.AsClause, Me.WhenClause)
        End Function

        ''' <summary>
        ''' An identifier declaring a new variable or naming an existing variable to store
        ''' the exception caught by the "Catch" statement.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property IdentifierName As IdentifierNameSyntax
            Get
                Return GetRed(_identifierName, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IdentifierName property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithIdentifierName(identifierName as IdentifierNameSyntax) As CatchStatementSyntax
            return Update(Me.CatchKeyword, identifierName, Me.AsClause, Me.WhenClause)
        End Function

        ''' <summary>
        ''' A simple "As" clause specifying the type of exception to catch.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As CatchStatementSyntax
            return Update(Me.CatchKeyword, Me.IdentifierName, asClause, Me.WhenClause)
        End Function

        ''' <summary>
        ''' A "When" clause to filter exceptions before catching.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property WhenClause As CatchFilterClauseSyntax
            Get
                Return GetRed(_whenClause, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhenClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhenClause(whenClause as CatchFilterClauseSyntax) As CatchStatementSyntax
            return Update(Me.CatchKeyword, Me.IdentifierName, Me.AsClause, whenClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._identifierName
                Case 2
                    Return Me._asClause
                Case 3
                    Return Me._whenClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.IdentifierName
                Case 2
                    Return Me.AsClause
                Case 3
                    Return Me.WhenClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCatchStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCatchStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="catchKeyword">
        ''' The value for the CatchKeyword property.
        ''' </param>
        ''' <param name="identifierName">
        ''' The value for the IdentifierName property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="whenClause">
        ''' The value for the WhenClause property.
        ''' </param>
        Public Function Update(catchKeyword As SyntaxToken, identifierName As IdentifierNameSyntax, asClause As SimpleAsClauseSyntax, whenClause As CatchFilterClauseSyntax) As CatchStatementSyntax
            If catchKeyword <> Me.CatchKeyword OrElse identifierName IsNot Me.IdentifierName OrElse asClause IsNot Me.AsClause OrElse whenClause IsNot Me.WhenClause Then
                Dim newNode = SyntaxFactory.CatchStatement(catchKeyword, identifierName, asClause, whenClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "When ..." clause of a "Catch" statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CatchFilterClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CatchFilterClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _filter as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), whenKeyword As InternalSyntax.KeywordSyntax, filter As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CatchFilterClauseSyntax(kind, errors, annotations, whenKeyword, DirectCast(filter.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "When" keyword.
        ''' </summary>
        Public ReadOnly Property WhenKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CatchFilterClauseSyntax)._whenKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhenKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhenKeyword(whenKeyword as SyntaxToken) As CatchFilterClauseSyntax
            return Update(whenKeyword, Me.Filter)
        End Function

        ''' <summary>
        ''' The filter expression to be evaluated.
        ''' </summary>
        Public ReadOnly Property Filter As ExpressionSyntax
            Get
                Return GetRed(_filter, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Filter property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithFilter(filter as ExpressionSyntax) As CatchFilterClauseSyntax
            return Update(Me.WhenKeyword, filter)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._filter
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Filter
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCatchFilterClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCatchFilterClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="whenKeyword">
        ''' The value for the WhenKeyword property.
        ''' </param>
        ''' <param name="filter">
        ''' The value for the Filter property.
        ''' </param>
        Public Function Update(whenKeyword As SyntaxToken, filter As ExpressionSyntax) As CatchFilterClauseSyntax
            If whenKeyword <> Me.WhenKeyword OrElse filter IsNot Me.Filter Then
                Dim newNode = SyntaxFactory.CatchFilterClause(whenKeyword, filter)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Finally ..." block of a "Try" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.FinallyBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class FinallyBlockSyntax
        Inherits VisualBasicSyntaxNode

        Friend _finallyStatement as FinallyStatementSyntax
        Friend _statements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), finallyStatement As FinallyStatementSyntax, statements As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FinallyBlockSyntax(kind, errors, annotations, DirectCast(finallyStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FinallyStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Finally" statement that begins the "Finally" block.
        ''' </summary>
        Public ReadOnly Property FinallyStatement As FinallyStatementSyntax
            Get
                Return GetRedAtZero(_finallyStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FinallyStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithFinallyStatement(finallyStatement as FinallyStatementSyntax) As FinallyBlockSyntax
            return Update(finallyStatement, Me.Statements)
        End Function

        ''' <summary>
        ''' A list of statements to be executed.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As FinallyBlockSyntax
            return Update(Me.FinallyStatement, statements)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As FinallyBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._finallyStatement
                Case 1
                    Return Me._statements
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.FinallyStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitFinallyBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitFinallyBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="finallyStatement">
        ''' The value for the FinallyStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        Public Function Update(finallyStatement As FinallyStatementSyntax, statements As SyntaxList(of StatementSyntax)) As FinallyBlockSyntax
            If finallyStatement IsNot Me.FinallyStatement OrElse statements <> Me.Statements Then
                Dim newNode = SyntaxFactory.FinallyBlock(finallyStatement, statements)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Finally" statement that begins a "Finally" block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.FinallyStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class FinallyStatementSyntax
        Inherits StatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), finallyKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FinallyStatementSyntax(kind, errors, annotations, finallyKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Finally" keyword.
        ''' </summary>
        Public ReadOnly Property FinallyKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FinallyStatementSyntax)._finallyKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FinallyKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithFinallyKeyword(finallyKeyword as SyntaxToken) As FinallyStatementSyntax
            return Update(finallyKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitFinallyStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitFinallyStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="finallyKeyword">
        ''' The value for the FinallyKeyword property.
        ''' </param>
        Public Function Update(finallyKeyword As SyntaxToken) As FinallyStatementSyntax
            If finallyKeyword <> Me.FinallyKeyword Then
                Dim newNode = SyntaxFactory.FinallyStatement(finallyKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Error" statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ErrorStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ErrorStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _errorNumber as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), errorKeyword As InternalSyntax.KeywordSyntax, errorNumber As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ErrorStatementSyntax(kind, errors, annotations, errorKeyword, DirectCast(errorNumber.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Error" keyword.
        ''' </summary>
        Public ReadOnly Property ErrorKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ErrorStatementSyntax)._errorKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ErrorKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithErrorKeyword(errorKeyword as SyntaxToken) As ErrorStatementSyntax
            return Update(errorKeyword, Me.ErrorNumber)
        End Function

        ''' <summary>
        ''' The expression that represents the error number.
        ''' </summary>
        Public ReadOnly Property ErrorNumber As ExpressionSyntax
            Get
                Return GetRed(_errorNumber, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ErrorNumber property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithErrorNumber(errorNumber as ExpressionSyntax) As ErrorStatementSyntax
            return Update(Me.ErrorKeyword, errorNumber)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._errorNumber
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.ErrorNumber
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitErrorStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitErrorStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="errorKeyword">
        ''' The value for the ErrorKeyword property.
        ''' </param>
        ''' <param name="errorNumber">
        ''' The value for the ErrorNumber property.
        ''' </param>
        Public Function Update(errorKeyword As SyntaxToken, errorNumber As ExpressionSyntax) As ErrorStatementSyntax
            If errorKeyword <> Me.ErrorKeyword OrElse errorNumber IsNot Me.ErrorNumber Then
                Dim newNode = SyntaxFactory.ErrorStatement(errorKeyword, errorNumber)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an OnError Goto statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.OnErrorGoToZeroStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.OnErrorGoToMinusOneStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.OnErrorGoToLabelStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OnErrorGoToStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _label as LabelSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), onKeyword As InternalSyntax.KeywordSyntax, errorKeyword As InternalSyntax.KeywordSyntax, goToKeyword As InternalSyntax.KeywordSyntax, minus As InternalSyntax.PunctuationSyntax, label As LabelSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorGoToStatementSyntax(kind, errors, annotations, onKeyword, errorKeyword, goToKeyword, minus, DirectCast(label.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "On" keyword
        ''' </summary>
        Public ReadOnly Property OnKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorGoToStatementSyntax)._onKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OnKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOnKeyword(onKeyword as SyntaxToken) As OnErrorGoToStatementSyntax
            return Update(Me.Kind, onKeyword, Me.ErrorKeyword, Me.GoToKeyword, Me.Minus, Me.Label)
        End Function

        ''' <summary>
        ''' The "Error" keyword.
        ''' </summary>
        Public ReadOnly Property ErrorKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorGoToStatementSyntax)._errorKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ErrorKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithErrorKeyword(errorKeyword as SyntaxToken) As OnErrorGoToStatementSyntax
            return Update(Me.Kind, Me.OnKeyword, errorKeyword, Me.GoToKeyword, Me.Minus, Me.Label)
        End Function

        ''' <summary>
        ''' The "GoTo" keyword
        ''' </summary>
        Public ReadOnly Property GoToKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorGoToStatementSyntax)._goToKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GoToKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithGoToKeyword(goToKeyword as SyntaxToken) As OnErrorGoToStatementSyntax
            return Update(Me.Kind, Me.OnKeyword, Me.ErrorKeyword, goToKeyword, Me.Minus, Me.Label)
        End Function

        ''' <summary>
        ''' An optional minus for On Error Goto -1
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Minus As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorGoToStatementSyntax)._minus
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(3), Me.GetChildIndex(3))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Minus property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithMinus(minus as SyntaxToken) As OnErrorGoToStatementSyntax
            return Update(Me.Kind, Me.OnKeyword, Me.ErrorKeyword, Me.GoToKeyword, minus, Me.Label)
        End Function

        ''' <summary>
        ''' The name of the label. If the label is a line number, 0 or -1, wraps an
        ''' IntegerLiteralToken that is the line number, otherwise, wraps an Identifier.
        ''' </summary>
        Public ReadOnly Property Label As LabelSyntax
            Get
                Return GetRed(_label, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Label property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLabel(label as LabelSyntax) As OnErrorGoToStatementSyntax
            return Update(Me.Kind, Me.OnKeyword, Me.ErrorKeyword, Me.GoToKeyword, Me.Minus, label)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 4
                    Return Me._label
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 4
                    Return Me.Label
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOnErrorGoToStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOnErrorGoToStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="onKeyword">
        ''' The value for the OnKeyword property.
        ''' </param>
        ''' <param name="errorKeyword">
        ''' The value for the ErrorKeyword property.
        ''' </param>
        ''' <param name="goToKeyword">
        ''' The value for the GoToKeyword property.
        ''' </param>
        ''' <param name="minus">
        ''' The value for the Minus property.
        ''' </param>
        ''' <param name="label">
        ''' The value for the Label property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, onKeyword As SyntaxToken, errorKeyword As SyntaxToken, goToKeyword As SyntaxToken, minus As SyntaxToken, label As LabelSyntax) As OnErrorGoToStatementSyntax
            If kind <> Me.Kind OrElse onKeyword <> Me.OnKeyword OrElse errorKeyword <> Me.ErrorKeyword OrElse goToKeyword <> Me.GoToKeyword OrElse minus <> Me.Minus OrElse label IsNot Me.Label Then
                Dim newNode = SyntaxFactory.OnErrorGoToStatement(kind, onKeyword, errorKeyword, goToKeyword, minus, label)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an OnError Resume Next statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.OnErrorResumeNextStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OnErrorResumeNextStatementSyntax
        Inherits ExecutableStatementSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), onKeyword As InternalSyntax.KeywordSyntax, errorKeyword As InternalSyntax.KeywordSyntax, resumeKeyword As InternalSyntax.KeywordSyntax, nextKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorResumeNextStatementSyntax(kind, errors, annotations, onKeyword, errorKeyword, resumeKeyword, nextKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "On" keyword
        ''' </summary>
        Public ReadOnly Property OnKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorResumeNextStatementSyntax)._onKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OnKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOnKeyword(onKeyword as SyntaxToken) As OnErrorResumeNextStatementSyntax
            return Update(onKeyword, Me.ErrorKeyword, Me.ResumeKeyword, Me.NextKeyword)
        End Function

        ''' <summary>
        ''' The "Error" keyword.
        ''' </summary>
        Public ReadOnly Property ErrorKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorResumeNextStatementSyntax)._errorKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ErrorKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithErrorKeyword(errorKeyword as SyntaxToken) As OnErrorResumeNextStatementSyntax
            return Update(Me.OnKeyword, errorKeyword, Me.ResumeKeyword, Me.NextKeyword)
        End Function

        ''' <summary>
        ''' The "Resume" keyword.
        ''' </summary>
        Public ReadOnly Property ResumeKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorResumeNextStatementSyntax)._resumeKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ResumeKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithResumeKeyword(resumeKeyword as SyntaxToken) As OnErrorResumeNextStatementSyntax
            return Update(Me.OnKeyword, Me.ErrorKeyword, resumeKeyword, Me.NextKeyword)
        End Function

        ''' <summary>
        ''' The "Next"
        ''' </summary>
        Public ReadOnly Property NextKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OnErrorResumeNextStatementSyntax)._nextKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NextKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNextKeyword(nextKeyword as SyntaxToken) As OnErrorResumeNextStatementSyntax
            return Update(Me.OnKeyword, Me.ErrorKeyword, Me.ResumeKeyword, nextKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOnErrorResumeNextStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOnErrorResumeNextStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="onKeyword">
        ''' The value for the OnKeyword property.
        ''' </param>
        ''' <param name="errorKeyword">
        ''' The value for the ErrorKeyword property.
        ''' </param>
        ''' <param name="resumeKeyword">
        ''' The value for the ResumeKeyword property.
        ''' </param>
        ''' <param name="nextKeyword">
        ''' The value for the NextKeyword property.
        ''' </param>
        Public Function Update(onKeyword As SyntaxToken, errorKeyword As SyntaxToken, resumeKeyword As SyntaxToken, nextKeyword As SyntaxToken) As OnErrorResumeNextStatementSyntax
            If onKeyword <> Me.OnKeyword OrElse errorKeyword <> Me.ErrorKeyword OrElse resumeKeyword <> Me.ResumeKeyword OrElse nextKeyword <> Me.NextKeyword Then
                Dim newNode = SyntaxFactory.OnErrorResumeNextStatement(onKeyword, errorKeyword, resumeKeyword, nextKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Resume" statement. The Kind property can be used to determine if
    ''' this is a "Resume", "Resume Next" or "Resume label" statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ResumeStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ResumeLabelStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ResumeNextStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ResumeStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _label as LabelSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), resumeKeyword As InternalSyntax.KeywordSyntax, label As LabelSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ResumeStatementSyntax(kind, errors, annotations, resumeKeyword, if(label IsNot Nothing, DirectCast(label.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LabelSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Resume" keyword.
        ''' </summary>
        Public ReadOnly Property ResumeKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ResumeStatementSyntax)._resumeKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ResumeKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithResumeKeyword(resumeKeyword as SyntaxToken) As ResumeStatementSyntax
            return Update(Me.Kind, resumeKeyword, Me.Label)
        End Function

        ''' <summary>
        ''' The label. The value of this depends on the Kind. If Kind=Resume, returns
        ''' Nothing. If Kind=ResumeNext, wraps the keyword "Next", If Kind=ResumeLabel,
        ''' wraps an Identifier or IntegerLiteralToken with the label or line number.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Label As LabelSyntax
            Get
                Return GetRed(_label, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Label property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLabel(label as LabelSyntax) As ResumeStatementSyntax
            return Update(Me.Kind, Me.ResumeKeyword, label)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._label
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Label
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitResumeStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitResumeStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="resumeKeyword">
        ''' The value for the ResumeKeyword property.
        ''' </param>
        ''' <param name="label">
        ''' The value for the Label property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, resumeKeyword As SyntaxToken, label As LabelSyntax) As ResumeStatementSyntax
            If kind <> Me.Kind OrElse resumeKeyword <> Me.ResumeKeyword OrElse label IsNot Me.Label Then
                Dim newNode = SyntaxFactory.ResumeStatement(kind, resumeKeyword, label)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Select Case block, including the Select Case that begins it, the
    ''' contains Case blocks and the End Select.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SelectBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SelectBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _selectStatement as SelectStatementSyntax
        Friend _caseBlocks as SyntaxNode
        Friend _endSelectStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), selectStatement As SelectStatementSyntax, caseBlocks As SyntaxNode, endSelectStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SelectBlockSyntax(kind, errors, annotations, DirectCast(selectStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SelectStatementSyntax), if(caseBlocks IsNot Nothing, caseBlocks.Green, Nothing), DirectCast(endSelectStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The Select Case statement that begins the block.
        ''' </summary>
        Public ReadOnly Property SelectStatement As SelectStatementSyntax
            Get
                Return GetRedAtZero(_selectStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SelectStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSelectStatement(selectStatement as SelectStatementSyntax) As SelectBlockSyntax
            return Update(selectStatement, Me.CaseBlocks, Me.EndSelectStatement)
        End Function

        ''' <summary>
        ''' A list of the contained Case blocks.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property CaseBlocks As SyntaxList(Of CaseBlockSyntax)
            Get
                Dim listNode = GetRed(_caseBlocks, 1)
                Return new SyntaxList(Of CaseBlockSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CaseBlocks property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCaseBlocks(caseBlocks as SyntaxList(Of CaseBlockSyntax)) As SelectBlockSyntax
            return Update(Me.SelectStatement, caseBlocks, Me.EndSelectStatement)
        End Function

        Public Shadows Function AddCaseBlocks(ParamArray items As CaseBlockSyntax()) As SelectBlockSyntax
            Return Me.WithCaseBlocks(Me.CaseBlocks.AddRange(items))
        End Function

        ''' <summary>
        ''' The End Select statement that ends the block.
        ''' </summary>
        Public ReadOnly Property EndSelectStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endSelectStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndSelectStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEndSelectStatement(endSelectStatement as EndBlockStatementSyntax) As SelectBlockSyntax
            return Update(Me.SelectStatement, Me.CaseBlocks, endSelectStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._selectStatement
                Case 1
                    Return Me._caseBlocks
                Case 2
                    Return Me._endSelectStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.SelectStatement
                Case 1
                    Return GetRed(_caseBlocks, 1)
                Case 2
                    Return Me.EndSelectStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSelectBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSelectBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="selectStatement">
        ''' The value for the SelectStatement property.
        ''' </param>
        ''' <param name="caseBlocks">
        ''' The value for the CaseBlocks property.
        ''' </param>
        ''' <param name="endSelectStatement">
        ''' The value for the EndSelectStatement property.
        ''' </param>
        Public Function Update(selectStatement As SelectStatementSyntax, caseBlocks As SyntaxList(of CaseBlockSyntax), endSelectStatement As EndBlockStatementSyntax) As SelectBlockSyntax
            If selectStatement IsNot Me.SelectStatement OrElse caseBlocks <> Me.CaseBlocks OrElse endSelectStatement IsNot Me.EndSelectStatement Then
                Dim newNode = SyntaxFactory.SelectBlock(selectStatement, caseBlocks, endSelectStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Select Case statement. This statement always occurs as the Begin
    ''' of a SelectBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SelectStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SelectStatementSyntax
        Inherits StatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), selectKeyword As InternalSyntax.KeywordSyntax, caseKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SelectStatementSyntax(kind, errors, annotations, selectKeyword, caseKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Select" keyword.
        ''' </summary>
        Public ReadOnly Property SelectKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SelectStatementSyntax)._selectKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SelectKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithSelectKeyword(selectKeyword as SyntaxToken) As SelectStatementSyntax
            return Update(selectKeyword, Me.CaseKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The "Case" keyword, if present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property CaseKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SelectStatementSyntax)._caseKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CaseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCaseKeyword(caseKeyword as SyntaxToken) As SelectStatementSyntax
            return Update(Me.SelectKeyword, caseKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The value that branching is based on.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As SelectStatementSyntax
            return Update(Me.SelectKeyword, Me.CaseKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSelectStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSelectStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="selectKeyword">
        ''' The value for the SelectKeyword property.
        ''' </param>
        ''' <param name="caseKeyword">
        ''' The value for the CaseKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(selectKeyword As SyntaxToken, caseKeyword As SyntaxToken, expression As ExpressionSyntax) As SelectStatementSyntax
            If selectKeyword <> Me.SelectKeyword OrElse caseKeyword <> Me.CaseKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.SelectStatement(selectKeyword, caseKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a case statement and its subsequent block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CaseBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.CaseElseBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CaseBlockSyntax
        Inherits VisualBasicSyntaxNode

        Friend _caseStatement as CaseStatementSyntax
        Friend _statements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), caseStatement As CaseStatementSyntax, statements As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CaseBlockSyntax(kind, errors, annotations, DirectCast(caseStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CaseStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The statement that begins the case block.
        ''' </summary>
        Public ReadOnly Property CaseStatement As CaseStatementSyntax
            Get
                Return GetRedAtZero(_caseStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CaseStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCaseStatement(caseStatement as CaseStatementSyntax) As CaseBlockSyntax
            return Update(Me.Kind, caseStatement, Me.Statements)
        End Function

        Public Shadows Function AddCaseStatementCases(ParamArray items As CaseClauseSyntax()) As CaseBlockSyntax
            Dim _child = If(Me.CaseStatement IsNot Nothing, Me.CaseStatement, SyntaxFactory.CaseStatement())
            Return Me.WithCaseStatement(_child.AddCases(items))
        End Function

        ''' <summary>
        ''' The statements contained in the case block. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As CaseBlockSyntax
            return Update(Me.Kind, Me.CaseStatement, statements)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As CaseBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._caseStatement
                Case 1
                    Return Me._statements
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.CaseStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCaseBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCaseBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="caseStatement">
        ''' The value for the CaseStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, caseStatement As CaseStatementSyntax, statements As SyntaxList(of StatementSyntax)) As CaseBlockSyntax
            If kind <> Me.Kind OrElse caseStatement IsNot Me.CaseStatement OrElse statements <> Me.Statements Then
                Dim newNode = SyntaxFactory.CaseBlock(kind, caseStatement, statements)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Case or Case Else statement. This statement is always the Begin of
    ''' a CaseBlock. If this is a Case Else statement, the Kind=CaseElse, otherwise the
    ''' Kind=Case.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CaseStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.CaseElseStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CaseStatementSyntax
        Inherits StatementSyntax

        Friend _cases as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), caseKeyword As InternalSyntax.KeywordSyntax, cases As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CaseStatementSyntax(kind, errors, annotations, caseKeyword, if(cases IsNot Nothing, cases.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Case" keyword
        ''' </summary>
        Public ReadOnly Property CaseKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CaseStatementSyntax)._caseKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CaseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCaseKeyword(caseKeyword as SyntaxToken) As CaseStatementSyntax
            return Update(Me.Kind, caseKeyword, Me.Cases)
        End Function

        ''' <summary>
        ''' A list of clauses associated with this Case. If Kind=CaseElse, then this list
        ''' has exactly one child, which is a ElseCaseClause.
        ''' </summary>
        Public ReadOnly Property Cases As SeparatedSyntaxList(Of CaseClauseSyntax)
            Get
                Dim listNode = GetRed(_cases, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of CaseClauseSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Cases property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithCases(cases as SeparatedSyntaxList(Of CaseClauseSyntax)) As CaseStatementSyntax
            return Update(Me.Kind, Me.CaseKeyword, cases)
        End Function

        Public Shadows Function AddCases(ParamArray items As CaseClauseSyntax()) As CaseStatementSyntax
            Return Me.WithCases(Me.Cases.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._cases
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_cases, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCaseStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCaseStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="caseKeyword">
        ''' The value for the CaseKeyword property.
        ''' </param>
        ''' <param name="cases">
        ''' The value for the Cases property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, caseKeyword As SyntaxToken, cases As SeparatedSyntaxList(Of CaseClauseSyntax)) As CaseStatementSyntax
            If kind <> Me.Kind OrElse caseKeyword <> Me.CaseKeyword OrElse cases <> Me.Cases Then
                Dim newNode = SyntaxFactory.CaseStatement(kind, caseKeyword, cases)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single clause in a case statement. An abstract node that is the
    ''' parent of different kinds of Case clauses.
    ''' </summary>
    Public MustInherit Class CaseClauseSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' The "Else" part in a Case Else statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ElseCaseClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ElseCaseClauseSyntax
        Inherits CaseClauseSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elseKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseCaseClauseSyntax(kind, errors, annotations, elseKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Else" keyword.
        ''' </summary>
        Public ReadOnly Property ElseKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseCaseClauseSyntax)._elseKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseKeyword(elseKeyword as SyntaxToken) As ElseCaseClauseSyntax
            return Update(elseKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitElseCaseClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitElseCaseClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elseKeyword">
        ''' The value for the ElseKeyword property.
        ''' </param>
        Public Function Update(elseKeyword As SyntaxToken) As ElseCaseClauseSyntax
            If elseKeyword <> Me.ElseKeyword Then
                Dim newNode = SyntaxFactory.ElseCaseClause(elseKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single value in a Case.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleCaseClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SimpleCaseClauseSyntax
        Inherits CaseClauseSyntax

        Friend _value as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), value As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleCaseClauseSyntax(kind, errors, annotations, DirectCast(value.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The expression that denotes the value being tested against.
        ''' </summary>
        Public ReadOnly Property Value As ExpressionSyntax
            Get
                Return GetRedAtZero(_value)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Value property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithValue(value as ExpressionSyntax) As SimpleCaseClauseSyntax
            return Update(value)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me._value
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me.Value
            Else
                Return Nothing
            End If
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSimpleCaseClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSimpleCaseClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="value">
        ''' The value for the Value property.
        ''' </param>
        Public Function Update(value As ExpressionSyntax) As SimpleCaseClauseSyntax
            If value IsNot Me.Value Then
                Dim newNode = SyntaxFactory.SimpleCaseClause(value)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a range "expression To expression" in a Case.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.RangeCaseClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class RangeCaseClauseSyntax
        Inherits CaseClauseSyntax

        Friend _lowerBound as ExpressionSyntax
        Friend _upperBound as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lowerBound As ExpressionSyntax, toKeyword As InternalSyntax.KeywordSyntax, upperBound As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RangeCaseClauseSyntax(kind, errors, annotations, DirectCast(lowerBound.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), toKeyword, DirectCast(upperBound.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The lower bound of the range.
        ''' </summary>
        Public ReadOnly Property LowerBound As ExpressionSyntax
            Get
                Return GetRedAtZero(_lowerBound)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LowerBound property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLowerBound(lowerBound as ExpressionSyntax) As RangeCaseClauseSyntax
            return Update(lowerBound, Me.ToKeyword, Me.UpperBound)
        End Function

        ''' <summary>
        ''' The "To" keyword
        ''' </summary>
        Public ReadOnly Property ToKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RangeCaseClauseSyntax)._toKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ToKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithToKeyword(toKeyword as SyntaxToken) As RangeCaseClauseSyntax
            return Update(Me.LowerBound, toKeyword, Me.UpperBound)
        End Function

        ''' <summary>
        ''' The upper bound of the range.
        ''' </summary>
        Public ReadOnly Property UpperBound As ExpressionSyntax
            Get
                Return GetRed(_upperBound, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the UpperBound property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithUpperBound(upperBound as ExpressionSyntax) As RangeCaseClauseSyntax
            return Update(Me.LowerBound, Me.ToKeyword, upperBound)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._lowerBound
                Case 2
                    Return Me._upperBound
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.LowerBound
                Case 2
                    Return Me.UpperBound
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitRangeCaseClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitRangeCaseClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lowerBound">
        ''' The value for the LowerBound property.
        ''' </param>
        ''' <param name="toKeyword">
        ''' The value for the ToKeyword property.
        ''' </param>
        ''' <param name="upperBound">
        ''' The value for the UpperBound property.
        ''' </param>
        Public Function Update(lowerBound As ExpressionSyntax, toKeyword As SyntaxToken, upperBound As ExpressionSyntax) As RangeCaseClauseSyntax
            If lowerBound IsNot Me.LowerBound OrElse toKeyword <> Me.ToKeyword OrElse upperBound IsNot Me.UpperBound Then
                Dim newNode = SyntaxFactory.RangeCaseClause(lowerBound, toKeyword, upperBound)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a relation clause in a Case statement, such as "Is &gt; expression".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CaseEqualsClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.CaseNotEqualsClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.CaseLessThanClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.CaseLessThanOrEqualClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.CaseGreaterThanOrEqualClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.CaseGreaterThanClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class RelationalCaseClauseSyntax
        Inherits CaseClauseSyntax

        Friend _value as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), isKeyword As InternalSyntax.KeywordSyntax, operatorToken As InternalSyntax.PunctuationSyntax, value As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RelationalCaseClauseSyntax(kind, errors, annotations, isKeyword, operatorToken, DirectCast(value.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Is" keyword, if present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property IsKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RelationalCaseClauseSyntax)._isKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IsKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIsKeyword(isKeyword as SyntaxToken) As RelationalCaseClauseSyntax
            return Update(Me.Kind, isKeyword, Me.OperatorToken, Me.Value)
        End Function

        ''' <summary>
        ''' The operator in the relational clause. One of "=", "&lt;", "&gt;", "&lt;=" or
        ''' "&gt;=".
        ''' </summary>
        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RelationalCaseClauseSyntax)._operatorToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As RelationalCaseClauseSyntax
            return Update(Me.Kind, Me.IsKeyword, operatorToken, Me.Value)
        End Function

        ''' <summary>
        ''' The expression that denotes the value being tested against.
        ''' </summary>
        Public ReadOnly Property Value As ExpressionSyntax
            Get
                Return GetRed(_value, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Value property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithValue(value as ExpressionSyntax) As RelationalCaseClauseSyntax
            return Update(Me.Kind, Me.IsKeyword, Me.OperatorToken, value)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._value
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Value
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitRelationalCaseClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitRelationalCaseClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="isKeyword">
        ''' The value for the IsKeyword property.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        ''' <param name="value">
        ''' The value for the Value property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, isKeyword As SyntaxToken, operatorToken As SyntaxToken, value As ExpressionSyntax) As RelationalCaseClauseSyntax
            If kind <> Me.Kind OrElse isKeyword <> Me.IsKeyword OrElse operatorToken <> Me.OperatorToken OrElse value IsNot Me.Value Then
                Dim newNode = SyntaxFactory.RelationalCaseClause(kind, isKeyword, operatorToken, value)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "SyncLock" statement. This statement always occurs as the Begin
    ''' of a SyncLockBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SyncLockStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SyncLockStatementSyntax
        Inherits StatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), syncLockKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SyncLockStatementSyntax(kind, errors, annotations, syncLockKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "SyncLock" keyword.
        ''' </summary>
        Public ReadOnly Property SyncLockKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SyncLockStatementSyntax)._syncLockKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SyncLockKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSyncLockKeyword(syncLockKeyword as SyntaxToken) As SyncLockStatementSyntax
            return Update(syncLockKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression being synchronized on.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As SyncLockStatementSyntax
            return Update(Me.SyncLockKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSyncLockStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSyncLockStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="syncLockKeyword">
        ''' The value for the SyncLockKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(syncLockKeyword As SyntaxToken, expression As ExpressionSyntax) As SyncLockStatementSyntax
            If syncLockKeyword <> Me.SyncLockKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.SyncLockStatement(syncLockKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Do-Loop block. The Kind property can be used to determine if this
    ''' is a Do While, Do Until, Do Loop While, Do Loop Until, or infinite Do Loop.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleDoLoopBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DoWhileLoopBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DoUntilLoopBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DoLoopWhileBlock"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DoLoopUntilBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DoLoopBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _doStatement as DoStatementSyntax
        Friend _statements as SyntaxNode
        Friend _loopStatement as LoopStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), doStatement As DoStatementSyntax, statements As SyntaxNode, loopStatement As LoopStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DoLoopBlockSyntax(kind, errors, annotations, DirectCast(doStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DoStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(loopStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LoopStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The Do statement that begins the block.
        ''' </summary>
        Public ReadOnly Property DoStatement As DoStatementSyntax
            Get
                Return GetRedAtZero(_doStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DoStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDoStatement(doStatement as DoStatementSyntax) As DoLoopBlockSyntax
            return Update(Me.Kind, doStatement, Me.Statements, Me.LoopStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the block statement. This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As DoLoopBlockSyntax
            return Update(Me.Kind, Me.DoStatement, statements, Me.LoopStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As DoLoopBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' The Loop statement that ends the block.
        ''' </summary>
        Public ReadOnly Property LoopStatement As LoopStatementSyntax
            Get
                Return GetRed(_loopStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LoopStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLoopStatement(loopStatement as LoopStatementSyntax) As DoLoopBlockSyntax
            return Update(Me.Kind, Me.DoStatement, Me.Statements, loopStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._doStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._loopStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.DoStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.LoopStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDoLoopBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDoLoopBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="doStatement">
        ''' The value for the DoStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="loopStatement">
        ''' The value for the LoopStatement property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, doStatement As DoStatementSyntax, statements As SyntaxList(of StatementSyntax), loopStatement As LoopStatementSyntax) As DoLoopBlockSyntax
            If kind <> Me.Kind OrElse doStatement IsNot Me.DoStatement OrElse statements <> Me.Statements OrElse loopStatement IsNot Me.LoopStatement Then
                Dim newNode = SyntaxFactory.DoLoopBlock(kind, doStatement, statements, loopStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The Do statement that begins a Do-Loop block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleDoStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DoWhileStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DoUntilStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DoStatementSyntax
        Inherits StatementSyntax

        Friend _whileOrUntilClause as WhileOrUntilClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), doKeyword As InternalSyntax.KeywordSyntax, whileOrUntilClause As WhileOrUntilClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DoStatementSyntax(kind, errors, annotations, doKeyword, if(whileOrUntilClause IsNot Nothing, DirectCast(whileOrUntilClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileOrUntilClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Do" keyword.
        ''' </summary>
        Public ReadOnly Property DoKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DoStatementSyntax)._doKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DoKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDoKeyword(doKeyword as SyntaxToken) As DoStatementSyntax
            return Update(Me.Kind, doKeyword, Me.WhileOrUntilClause)
        End Function

        ''' <summary>
        ''' The "While expression" or "Until expression" clause of the Do statement, if
        ''' present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property WhileOrUntilClause As WhileOrUntilClauseSyntax
            Get
                Return GetRed(_whileOrUntilClause, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhileOrUntilClause property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithWhileOrUntilClause(whileOrUntilClause as WhileOrUntilClauseSyntax) As DoStatementSyntax
            return Update(Me.Kind, Me.DoKeyword, whileOrUntilClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._whileOrUntilClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.WhileOrUntilClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDoStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDoStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="doKeyword">
        ''' The value for the DoKeyword property.
        ''' </param>
        ''' <param name="whileOrUntilClause">
        ''' The value for the WhileOrUntilClause property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, doKeyword As SyntaxToken, whileOrUntilClause As WhileOrUntilClauseSyntax) As DoStatementSyntax
            If kind <> Me.Kind OrElse doKeyword <> Me.DoKeyword OrElse whileOrUntilClause IsNot Me.WhileOrUntilClause Then
                Dim newNode = SyntaxFactory.DoStatement(kind, doKeyword, whileOrUntilClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The Loop statement that begins a Do-Loop block.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleLoopStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.LoopWhileStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.LoopUntilStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class LoopStatementSyntax
        Inherits StatementSyntax

        Friend _whileOrUntilClause as WhileOrUntilClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), loopKeyword As InternalSyntax.KeywordSyntax, whileOrUntilClause As WhileOrUntilClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LoopStatementSyntax(kind, errors, annotations, loopKeyword, if(whileOrUntilClause IsNot Nothing, DirectCast(whileOrUntilClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileOrUntilClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Loop" keyword.
        ''' </summary>
        Public ReadOnly Property LoopKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LoopStatementSyntax)._loopKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LoopKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLoopKeyword(loopKeyword as SyntaxToken) As LoopStatementSyntax
            return Update(Me.Kind, loopKeyword, Me.WhileOrUntilClause)
        End Function

        ''' <summary>
        ''' The "While expression" or "Until expression" clause of the Loop statement, if
        ''' present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property WhileOrUntilClause As WhileOrUntilClauseSyntax
            Get
                Return GetRed(_whileOrUntilClause, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhileOrUntilClause property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithWhileOrUntilClause(whileOrUntilClause as WhileOrUntilClauseSyntax) As LoopStatementSyntax
            return Update(Me.Kind, Me.LoopKeyword, whileOrUntilClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._whileOrUntilClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.WhileOrUntilClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitLoopStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitLoopStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="loopKeyword">
        ''' The value for the LoopKeyword property.
        ''' </param>
        ''' <param name="whileOrUntilClause">
        ''' The value for the WhileOrUntilClause property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, loopKeyword As SyntaxToken, whileOrUntilClause As WhileOrUntilClauseSyntax) As LoopStatementSyntax
            If kind <> Me.Kind OrElse loopKeyword <> Me.LoopKeyword OrElse whileOrUntilClause IsNot Me.WhileOrUntilClause Then
                Dim newNode = SyntaxFactory.LoopStatement(kind, loopKeyword, whileOrUntilClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "While expression" or "Until expression" in a Do or Loop
    ''' statement. The Kind of the clause can be "WhileClause" or "UntilClause" to
    ''' indicate which kind of clause.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WhileClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.UntilClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WhileOrUntilClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _condition as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), whileOrUntilKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileOrUntilClauseSyntax(kind, errors, annotations, whileOrUntilKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "While" or "Until" keyword.
        ''' </summary>
        Public ReadOnly Property WhileOrUntilKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileOrUntilClauseSyntax)._whileOrUntilKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhileOrUntilKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithWhileOrUntilKeyword(whileOrUntilKeyword as SyntaxToken) As WhileOrUntilClauseSyntax
            return Update(Me.Kind, whileOrUntilKeyword, Me.Condition)
        End Function

        ''' <summary>
        ''' The boolean expression after the While or Until.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As WhileOrUntilClauseSyntax
            return Update(Me.Kind, Me.WhileOrUntilKeyword, condition)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWhileOrUntilClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWhileOrUntilClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="whileOrUntilKeyword">
        ''' The value for the WhileOrUntilKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, whileOrUntilKeyword As SyntaxToken, condition As ExpressionSyntax) As WhileOrUntilClauseSyntax
            If kind <> Me.Kind OrElse whileOrUntilKeyword <> Me.WhileOrUntilKeyword OrElse condition IsNot Me.Condition Then
                Dim newNode = SyntaxFactory.WhileOrUntilClause(kind, whileOrUntilKeyword, condition)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The While statement that begins a While...End While block. This statement
    ''' always occurs as the Begin of a WhileBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WhileStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WhileStatementSyntax
        Inherits StatementSyntax

        Friend _condition as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), whileKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileStatementSyntax(kind, errors, annotations, whileKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "While" keyword.
        ''' </summary>
        Public ReadOnly Property WhileKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhileStatementSyntax)._whileKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhileKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhileKeyword(whileKeyword as SyntaxToken) As WhileStatementSyntax
            return Update(whileKeyword, Me.Condition)
        End Function

        ''' <summary>
        ''' The boolean expression that controls the While loop.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As WhileStatementSyntax
            return Update(Me.WhileKeyword, condition)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWhileStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWhileStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="whileKeyword">
        ''' The value for the WhileKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        Public Function Update(whileKeyword As SyntaxToken, condition As ExpressionSyntax) As WhileStatementSyntax
            If whileKeyword <> Me.WhileKeyword OrElse condition IsNot Me.Condition Then
                Dim newNode = SyntaxFactory.WhileStatement(whileKeyword, condition)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a For or For Each block.
    ''' </summary>
    Public MustInherit Class ForOrForEachBlockSyntax
        Inherits ExecutableStatementSyntax

        Friend _statements as SyntaxNode
        Friend _nextStatement as NextStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The statements contained in the For or For Each loop. This might be an empty
        ''' list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Return Me.GetStatementsCore()
            End Get
        End Property

        Friend Overridable Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Dim listNode = GetRedAtZero(_statements)
            Return new SyntaxList(Of StatementSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithStatements(statements As SyntaxList(Of StatementSyntax)) As ForOrForEachBlockSyntax
            Return WithStatementsCore(statements)
        End Function
        Friend MustOverride Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As ForOrForEachBlockSyntax

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As ForOrForEachBlockSyntax
            Return AddStatementsCore(items)
        End Function
        Friend MustOverride Function AddStatementsCore(ParamArray items As StatementSyntax()) As ForOrForEachBlockSyntax
        ''' <summary>
        ''' The Next statement that ends the block. If two For or For Each statements are
        ''' ended by a single Next statement, the inner For will not have a Next statement.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property NextStatement As NextStatementSyntax
            Get
                Return Me.GetNextStatementCore()
            End Get
        End Property

        Friend Overridable Function GetNextStatementCore() As NextStatementSyntax
            Return GetRed(_nextStatement, 1)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the NextStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithNextStatement(nextStatement As NextStatementSyntax) As ForOrForEachBlockSyntax
            Return WithNextStatementCore(nextStatement)
        End Function
        Friend MustOverride Function WithNextStatementCore(nextStatement As NextStatementSyntax) As ForOrForEachBlockSyntax

        Public Shadows Function AddNextStatementControlVariables(ParamArray items As ExpressionSyntax()) As ForOrForEachBlockSyntax
            Return AddNextStatementControlVariablesCore(items)
        End Function
        Friend MustOverride Function AddNextStatementControlVariablesCore(ParamArray items As ExpressionSyntax()) As ForOrForEachBlockSyntax

    End Class

    ''' <summary>
    ''' Represents a For block, including the introducing statement, the body and the
    ''' "Next" (which can be omitted if a containing For has a Next with multiple
    ''' variables).
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ForBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ForBlockSyntax
        Inherits ForOrForEachBlockSyntax

        Friend _forStatement as ForStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), forStatement As ForStatementSyntax, statements As SyntaxNode, nextStatement As NextStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForBlockSyntax(kind, errors, annotations, DirectCast(forStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), if(nextStatement IsNot Nothing, DirectCast(nextStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NextStatementSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The For statement that begins the block.
        ''' </summary>
        Public ReadOnly Property ForStatement As ForStatementSyntax
            Get
                Return GetRedAtZero(_forStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ForStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithForStatement(forStatement as ForStatementSyntax) As ForBlockSyntax
            return Update(forStatement, Me.Statements, Me.NextStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the For or For Each loop. This might be an empty
        ''' list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Return Me.Statements
        End Function

        Friend Overrides Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As ForOrForEachBlockSyntax
            Return WithStatements(statements)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As ForBlockSyntax
            return Update(Me.ForStatement, statements, Me.NextStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As ForBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function AddStatementsCore(ParamArray items As StatementSyntax()) As ForOrForEachBlockSyntax
            Return AddStatements(items)
        End Function

        ''' <summary>
        ''' The Next statement that ends the block. If two For or For Each statements are
        ''' ended by a single Next statement, the inner For will not have a Next statement.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property NextStatement As NextStatementSyntax
            Get
                Return GetRed(_nextStatement, 2)
            End Get
        End Property

        Friend Overrides Function GetNextStatementCore() As NextStatementSyntax
            Return Me.NextStatement
        End Function

        Friend Overrides Function WithNextStatementCore(nextStatement As NextStatementSyntax) As ForOrForEachBlockSyntax
            Return WithNextStatement(nextStatement)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the NextStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNextStatement(nextStatement as NextStatementSyntax) As ForBlockSyntax
            return Update(Me.ForStatement, Me.Statements, nextStatement)
        End Function

        Public Shadows Function AddNextStatementControlVariables(ParamArray items As ExpressionSyntax()) As ForBlockSyntax
            Dim _child = If(Me.NextStatement IsNot Nothing, Me.NextStatement, SyntaxFactory.NextStatement())
            Return Me.WithNextStatement(_child.AddControlVariables(items))
        End Function

        Friend Overrides Function AddNextStatementControlVariablesCore(ParamArray items As ExpressionSyntax()) As ForOrForEachBlockSyntax
            Return AddNextStatementControlVariables(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._forStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._nextStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ForStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.NextStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitForBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitForBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="forStatement">
        ''' The value for the ForStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="nextStatement">
        ''' The value for the NextStatement property.
        ''' </param>
        Public Function Update(forStatement As ForStatementSyntax, statements As SyntaxList(of StatementSyntax), nextStatement As NextStatementSyntax) As ForBlockSyntax
            If forStatement IsNot Me.ForStatement OrElse statements <> Me.Statements OrElse nextStatement IsNot Me.NextStatement Then
                Dim newNode = SyntaxFactory.ForBlock(forStatement, statements, nextStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a For Each block, including the introducing statement, the body and
    ''' the "Next" (which can be omitted if a containing For has a Next with multiple
    ''' variables).
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ForEachBlock"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ForEachBlockSyntax
        Inherits ForOrForEachBlockSyntax

        Friend _forEachStatement as ForEachStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), forEachStatement As ForEachStatementSyntax, statements As SyntaxNode, nextStatement As NextStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForEachBlockSyntax(kind, errors, annotations, DirectCast(forEachStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForEachStatementSyntax), if(statements IsNot Nothing, statements.Green, Nothing), if(nextStatement IsNot Nothing, DirectCast(nextStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NextStatementSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The For Each statement that begins the block.
        ''' </summary>
        Public ReadOnly Property ForEachStatement As ForEachStatementSyntax
            Get
                Return GetRedAtZero(_forEachStatement)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ForEachStatement property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithForEachStatement(forEachStatement as ForEachStatementSyntax) As ForEachBlockSyntax
            return Update(forEachStatement, Me.Statements, Me.NextStatement)
        End Function

        ''' <summary>
        ''' The statements contained in the For or For Each loop. This might be an empty
        ''' list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetStatementsCore() As SyntaxList(Of StatementSyntax)
            Return Me.Statements
        End Function

        Friend Overrides Function WithStatementsCore(statements As SyntaxList(Of StatementSyntax)) As ForOrForEachBlockSyntax
            Return WithStatements(statements)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As ForEachBlockSyntax
            return Update(Me.ForEachStatement, statements, Me.NextStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As ForEachBlockSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        Friend Overrides Function AddStatementsCore(ParamArray items As StatementSyntax()) As ForOrForEachBlockSyntax
            Return AddStatements(items)
        End Function

        ''' <summary>
        ''' The Next statement that ends the block. If two For or For Each statements are
        ''' ended by a single Next statement, the inner For will not have a Next statement.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property NextStatement As NextStatementSyntax
            Get
                Return GetRed(_nextStatement, 2)
            End Get
        End Property

        Friend Overrides Function GetNextStatementCore() As NextStatementSyntax
            Return Me.NextStatement
        End Function

        Friend Overrides Function WithNextStatementCore(nextStatement As NextStatementSyntax) As ForOrForEachBlockSyntax
            Return WithNextStatement(nextStatement)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the NextStatement property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNextStatement(nextStatement as NextStatementSyntax) As ForEachBlockSyntax
            return Update(Me.ForEachStatement, Me.Statements, nextStatement)
        End Function

        Public Shadows Function AddNextStatementControlVariables(ParamArray items As ExpressionSyntax()) As ForEachBlockSyntax
            Dim _child = If(Me.NextStatement IsNot Nothing, Me.NextStatement, SyntaxFactory.NextStatement())
            Return Me.WithNextStatement(_child.AddControlVariables(items))
        End Function

        Friend Overrides Function AddNextStatementControlVariablesCore(ParamArray items As ExpressionSyntax()) As ForOrForEachBlockSyntax
            Return AddNextStatementControlVariables(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._forEachStatement
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._nextStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ForEachStatement
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.NextStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitForEachBlock(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitForEachBlock(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="forEachStatement">
        ''' The value for the ForEachStatement property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="nextStatement">
        ''' The value for the NextStatement property.
        ''' </param>
        Public Function Update(forEachStatement As ForEachStatementSyntax, statements As SyntaxList(of StatementSyntax), nextStatement As NextStatementSyntax) As ForEachBlockSyntax
            If forEachStatement IsNot Me.ForEachStatement OrElse statements <> Me.Statements OrElse nextStatement IsNot Me.NextStatement Then
                Dim newNode = SyntaxFactory.ForEachBlock(forEachStatement, statements, nextStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a For or For Each statement.
    ''' </summary>
    Public MustInherit Class ForOrForEachStatementSyntax
        Inherits StatementSyntax

        Friend _controlVariable as VisualBasicSyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The "For" keyword.
        ''' </summary>
        Public ReadOnly Property ForKeyword As SyntaxToken
            Get
                Return Me.GetForKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetForKeywordCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForOrForEachStatementSyntax)._forKeyword, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ForKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithForKeyword(forKeyword As SyntaxToken) As ForOrForEachStatementSyntax
            Return WithForKeywordCore(forKeyword)
        End Function
        Friend MustOverride Function WithForKeywordCore(forKeyword As SyntaxToken) As ForOrForEachStatementSyntax

        ''' <summary>
        ''' If the For or For Each statement is of a form that does not declare a new loop
        ''' control variable, this is the expression that denotes the loop control
        ''' variable. If this loop is of a form that does declare a new control variable,
        ''' this is a VariableDeclarator that has the variable being declared.
        ''' </summary>
        Public ReadOnly Property ControlVariable As VisualBasicSyntaxNode
            Get
                Return Me.GetControlVariableCore()
            End Get
        End Property

        Friend Overridable Function GetControlVariableCore() As VisualBasicSyntaxNode
            Return GetRed(_controlVariable, 1)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ControlVariable property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithControlVariable(controlVariable As VisualBasicSyntaxNode) As ForOrForEachStatementSyntax
            Return WithControlVariableCore(controlVariable)
        End Function
        Friend MustOverride Function WithControlVariableCore(controlVariable As VisualBasicSyntaxNode) As ForOrForEachStatementSyntax

    End Class

    ''' <summary>
    ''' The For statement that begins a For-Next block. This statement always occurs as
    ''' the Begin of a ForBlock. Most of the time, the End of that ForBlock is the
    ''' corresponding Next statement. However, multiple nested For statements are ended
    ''' by a single Next statement with multiple variables, then the inner For
    ''' statements will have End set to Nothing, and the Next statement is the End of
    ''' the outermost For statement that is being ended.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ForStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ForStatementSyntax
        Inherits ForOrForEachStatementSyntax

        Friend _fromValue as ExpressionSyntax
        Friend _toValue as ExpressionSyntax
        Friend _stepClause as ForStepClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), forKeyword As InternalSyntax.KeywordSyntax, controlVariable As VisualBasicSyntaxNode, equalsToken As InternalSyntax.PunctuationSyntax, fromValue As ExpressionSyntax, toKeyword As InternalSyntax.KeywordSyntax, toValue As ExpressionSyntax, stepClause As ForStepClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStatementSyntax(kind, errors, annotations, forKeyword, DirectCast(controlVariable.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VisualBasicSyntaxNode), equalsToken, DirectCast(fromValue.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), toKeyword, DirectCast(toValue.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), if(stepClause IsNot Nothing, DirectCast(stepClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStepClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "For" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property ForKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStatementSyntax)._forKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetForKeywordCore() As SyntaxToken
            Return Me.ForKeyword
        End Function

        Friend Overrides Function WithForKeywordCore(forKeyword As SyntaxToken) As ForOrForEachStatementSyntax
            Return WithForKeyword(forKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ForKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithForKeyword(forKeyword as SyntaxToken) As ForStatementSyntax
            return Update(forKeyword, Me.ControlVariable, Me.EqualsToken, Me.FromValue, Me.ToKeyword, Me.ToValue, Me.StepClause)
        End Function

        ''' <summary>
        ''' If the For or For Each statement is of a form that does not declare a new loop
        ''' control variable, this is the expression that denotes the loop control
        ''' variable. If this loop is of a form that does declare a new control variable,
        ''' this is a VariableDeclarator that has the variable being declared.
        ''' </summary>
        Public Shadows ReadOnly Property ControlVariable As VisualBasicSyntaxNode
            Get
                Return GetRed(_controlVariable, 1)
            End Get
        End Property

        Friend Overrides Function GetControlVariableCore() As VisualBasicSyntaxNode
            Return Me.ControlVariable
        End Function

        Friend Overrides Function WithControlVariableCore(controlVariable As VisualBasicSyntaxNode) As ForOrForEachStatementSyntax
            Return WithControlVariable(controlVariable)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ControlVariable property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithControlVariable(controlVariable as VisualBasicSyntaxNode) As ForStatementSyntax
            return Update(Me.ForKeyword, controlVariable, Me.EqualsToken, Me.FromValue, Me.ToKeyword, Me.ToValue, Me.StepClause)
        End Function

        ''' <summary>
        ''' The "=" token.
        ''' </summary>
        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStatementSyntax)._equalsToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As ForStatementSyntax
            return Update(Me.ForKeyword, Me.ControlVariable, equalsToken, Me.FromValue, Me.ToKeyword, Me.ToValue, Me.StepClause)
        End Function

        ''' <summary>
        ''' The expression denoting the initial value of the iteration.
        ''' </summary>
        Public ReadOnly Property FromValue As ExpressionSyntax
            Get
                Return GetRed(_fromValue, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FromValue property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithFromValue(fromValue as ExpressionSyntax) As ForStatementSyntax
            return Update(Me.ForKeyword, Me.ControlVariable, Me.EqualsToken, fromValue, Me.ToKeyword, Me.ToValue, Me.StepClause)
        End Function

        ''' <summary>
        ''' The "To" keyword.
        ''' </summary>
        Public ReadOnly Property ToKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStatementSyntax)._toKeyword, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ToKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithToKeyword(toKeyword as SyntaxToken) As ForStatementSyntax
            return Update(Me.ForKeyword, Me.ControlVariable, Me.EqualsToken, Me.FromValue, toKeyword, Me.ToValue, Me.StepClause)
        End Function

        ''' <summary>
        ''' The expression denoting the final value of the iteration.
        ''' </summary>
        Public ReadOnly Property ToValue As ExpressionSyntax
            Get
                Return GetRed(_toValue, 5)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ToValue property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithToValue(toValue as ExpressionSyntax) As ForStatementSyntax
            return Update(Me.ForKeyword, Me.ControlVariable, Me.EqualsToken, Me.FromValue, Me.ToKeyword, toValue, Me.StepClause)
        End Function

        ''' <summary>
        ''' The optional Step clause.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property StepClause As ForStepClauseSyntax
            Get
                Return GetRed(_stepClause, 6)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StepClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStepClause(stepClause as ForStepClauseSyntax) As ForStatementSyntax
            return Update(Me.ForKeyword, Me.ControlVariable, Me.EqualsToken, Me.FromValue, Me.ToKeyword, Me.ToValue, stepClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._controlVariable
                Case 3
                    Return Me._fromValue
                Case 5
                    Return Me._toValue
                Case 6
                    Return Me._stepClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.ControlVariable
                Case 3
                    Return Me.FromValue
                Case 5
                    Return Me.ToValue
                Case 6
                    Return Me.StepClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitForStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitForStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="forKeyword">
        ''' The value for the ForKeyword property.
        ''' </param>
        ''' <param name="controlVariable">
        ''' The value for the ControlVariable property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        ''' <param name="fromValue">
        ''' The value for the FromValue property.
        ''' </param>
        ''' <param name="toKeyword">
        ''' The value for the ToKeyword property.
        ''' </param>
        ''' <param name="toValue">
        ''' The value for the ToValue property.
        ''' </param>
        ''' <param name="stepClause">
        ''' The value for the StepClause property.
        ''' </param>
        Public Function Update(forKeyword As SyntaxToken, controlVariable As VisualBasicSyntaxNode, equalsToken As SyntaxToken, fromValue As ExpressionSyntax, toKeyword As SyntaxToken, toValue As ExpressionSyntax, stepClause As ForStepClauseSyntax) As ForStatementSyntax
            If forKeyword <> Me.ForKeyword OrElse controlVariable IsNot Me.ControlVariable OrElse equalsToken <> Me.EqualsToken OrElse fromValue IsNot Me.FromValue OrElse toKeyword <> Me.ToKeyword OrElse toValue IsNot Me.ToValue OrElse stepClause IsNot Me.StepClause Then
                Dim newNode = SyntaxFactory.ForStatement(forKeyword, controlVariable, equalsToken, fromValue, toKeyword, toValue, stepClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The Step clause in a For Statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ForStepClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ForStepClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _stepValue as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), stepKeyword As InternalSyntax.KeywordSyntax, stepValue As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStepClauseSyntax(kind, errors, annotations, stepKeyword, DirectCast(stepValue.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Step" keyword.
        ''' </summary>
        Public ReadOnly Property StepKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForStepClauseSyntax)._stepKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StepKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStepKeyword(stepKeyword as SyntaxToken) As ForStepClauseSyntax
            return Update(stepKeyword, Me.StepValue)
        End Function

        ''' <summary>
        ''' The expression denoting the step increment.
        ''' </summary>
        Public ReadOnly Property StepValue As ExpressionSyntax
            Get
                Return GetRed(_stepValue, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StepValue property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStepValue(stepValue as ExpressionSyntax) As ForStepClauseSyntax
            return Update(Me.StepKeyword, stepValue)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._stepValue
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.StepValue
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitForStepClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitForStepClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="stepKeyword">
        ''' The value for the StepKeyword property.
        ''' </param>
        ''' <param name="stepValue">
        ''' The value for the StepValue property.
        ''' </param>
        Public Function Update(stepKeyword As SyntaxToken, stepValue As ExpressionSyntax) As ForStepClauseSyntax
            If stepKeyword <> Me.StepKeyword OrElse stepValue IsNot Me.StepValue Then
                Dim newNode = SyntaxFactory.ForStepClause(stepKeyword, stepValue)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The For Each statement that begins a For Each-Next block. This statement always
    ''' occurs as the Begin of a ForBlock, and the body of the For Each-Next is the
    ''' Body of that ForBlock. Most of the time, the End of that ForBlock is the
    ''' corresponding Next statement. However, multiple nested For statements are ended
    ''' by a single Next statement with multiple variables, then the inner For
    ''' statements will have End set to Nothing, and the Next statement is the End of
    ''' the outermost For statement that is being ended.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ForEachStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ForEachStatementSyntax
        Inherits ForOrForEachStatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), forKeyword As InternalSyntax.KeywordSyntax, eachKeyword As InternalSyntax.KeywordSyntax, controlVariable As VisualBasicSyntaxNode, inKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForEachStatementSyntax(kind, errors, annotations, forKeyword, eachKeyword, DirectCast(controlVariable.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VisualBasicSyntaxNode), inKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "For" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property ForKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForEachStatementSyntax)._forKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetForKeywordCore() As SyntaxToken
            Return Me.ForKeyword
        End Function

        Friend Overrides Function WithForKeywordCore(forKeyword As SyntaxToken) As ForOrForEachStatementSyntax
            Return WithForKeyword(forKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ForKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithForKeyword(forKeyword as SyntaxToken) As ForEachStatementSyntax
            return Update(forKeyword, Me.EachKeyword, Me.ControlVariable, Me.InKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The "Each" keyword.
        ''' </summary>
        Public ReadOnly Property EachKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForEachStatementSyntax)._eachKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EachKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEachKeyword(eachKeyword as SyntaxToken) As ForEachStatementSyntax
            return Update(Me.ForKeyword, eachKeyword, Me.ControlVariable, Me.InKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' If the For or For Each statement is of a form that does not declare a new loop
        ''' control variable, this is the expression that denotes the loop control
        ''' variable. If this loop is of a form that does declare a new control variable,
        ''' this is a VariableDeclarator that has the variable being declared.
        ''' </summary>
        Public Shadows ReadOnly Property ControlVariable As VisualBasicSyntaxNode
            Get
                Return GetRed(_controlVariable, 2)
            End Get
        End Property

        Friend Overrides Function GetControlVariableCore() As VisualBasicSyntaxNode
            Return Me.ControlVariable
        End Function

        Friend Overrides Function WithControlVariableCore(controlVariable As VisualBasicSyntaxNode) As ForOrForEachStatementSyntax
            Return WithControlVariable(controlVariable)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ControlVariable property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithControlVariable(controlVariable as VisualBasicSyntaxNode) As ForEachStatementSyntax
            return Update(Me.ForKeyword, Me.EachKeyword, controlVariable, Me.InKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The "In" keyword.
        ''' </summary>
        Public ReadOnly Property InKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ForEachStatementSyntax)._inKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the InKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInKeyword(inKeyword as SyntaxToken) As ForEachStatementSyntax
            return Update(Me.ForKeyword, Me.EachKeyword, Me.ControlVariable, inKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression denoting the collection to iterate over.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As ForEachStatementSyntax
            return Update(Me.ForKeyword, Me.EachKeyword, Me.ControlVariable, Me.InKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._controlVariable
                Case 4
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.ControlVariable
                Case 4
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitForEachStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitForEachStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="forKeyword">
        ''' The value for the ForKeyword property.
        ''' </param>
        ''' <param name="eachKeyword">
        ''' The value for the EachKeyword property.
        ''' </param>
        ''' <param name="controlVariable">
        ''' The value for the ControlVariable property.
        ''' </param>
        ''' <param name="inKeyword">
        ''' The value for the InKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(forKeyword As SyntaxToken, eachKeyword As SyntaxToken, controlVariable As VisualBasicSyntaxNode, inKeyword As SyntaxToken, expression As ExpressionSyntax) As ForEachStatementSyntax
            If forKeyword <> Me.ForKeyword OrElse eachKeyword <> Me.EachKeyword OrElse controlVariable IsNot Me.ControlVariable OrElse inKeyword <> Me.InKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.ForEachStatement(forKeyword, eachKeyword, controlVariable, inKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The Next statement that ends a For-Next or For Each-Next block. This statement
    ''' always occurs as the End of a ForBlock (with Kind=ForBlock or ForEachBlock),
    ''' and the body of the For-Next is the Body of that ForBlock. The Begin of that
    ''' ForBlock has the corresponding For or For Each statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NextStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NextStatementSyntax
        Inherits StatementSyntax

        Friend _controlVariables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), nextKeyword As InternalSyntax.KeywordSyntax, controlVariables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NextStatementSyntax(kind, errors, annotations, nextKeyword, if(controlVariables IsNot Nothing, controlVariables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Next" keyword.
        ''' </summary>
        Public ReadOnly Property NextKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NextStatementSyntax)._nextKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NextKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNextKeyword(nextKeyword as SyntaxToken) As NextStatementSyntax
            return Update(nextKeyword, Me.ControlVariables)
        End Function

        ''' <summary>
        ''' The variables in the Next statement, if present
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property ControlVariables As SeparatedSyntaxList(Of ExpressionSyntax)
            Get
                Dim listNode = GetRed(_controlVariables, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ExpressionSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ControlVariables property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithControlVariables(controlVariables as SeparatedSyntaxList(Of ExpressionSyntax)) As NextStatementSyntax
            return Update(Me.NextKeyword, controlVariables)
        End Function

        Public Shadows Function AddControlVariables(ParamArray items As ExpressionSyntax()) As NextStatementSyntax
            Return Me.WithControlVariables(Me.ControlVariables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._controlVariables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_controlVariables, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNextStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNextStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="nextKeyword">
        ''' The value for the NextKeyword property.
        ''' </param>
        ''' <param name="controlVariables">
        ''' The value for the ControlVariables property.
        ''' </param>
        Public Function Update(nextKeyword As SyntaxToken, controlVariables As SeparatedSyntaxList(Of ExpressionSyntax)) As NextStatementSyntax
            If nextKeyword <> Me.NextKeyword OrElse controlVariables <> Me.ControlVariables Then
                Dim newNode = SyntaxFactory.NextStatement(nextKeyword, controlVariables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' The Using statement that begins a Using block. This statement always occurs as
    ''' the Begin of a UsingBlock, and the body of the Using is the Body of that
    ''' UsingBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.UsingStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class UsingStatementSyntax
        Inherits StatementSyntax

        Friend _expression as ExpressionSyntax
        Friend _variables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), usingKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax, variables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.UsingStatementSyntax(kind, errors, annotations, usingKeyword, if(expression IsNot Nothing, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing), if(variables IsNot Nothing, variables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Using" keyword.
        ''' </summary>
        Public ReadOnly Property UsingKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.UsingStatementSyntax)._usingKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the UsingKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithUsingKeyword(usingKeyword as SyntaxToken) As UsingStatementSyntax
            return Update(usingKeyword, Me.Expression, Me.Variables)
        End Function

        ''' <summary>
        ''' If the Using statement is of a form that does not declare a new variable, this
        ''' is the expression used in the using. Otherwise, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As UsingStatementSyntax
            return Update(Me.UsingKeyword, expression, Me.Variables)
        End Function

        ''' <summary>
        ''' If the Using statement is of a form that declares one or more new variables,
        ''' this is the list of variable declarations. Otherwise, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Variables As SeparatedSyntaxList(Of VariableDeclaratorSyntax)
            Get
                Dim listNode = GetRed(_variables, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of VariableDeclaratorSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Variables property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithVariables(variables as SeparatedSyntaxList(Of VariableDeclaratorSyntax)) As UsingStatementSyntax
            return Update(Me.UsingKeyword, Me.Expression, variables)
        End Function

        Public Shadows Function AddVariables(ParamArray items As VariableDeclaratorSyntax()) As UsingStatementSyntax
            Return Me.WithVariables(Me.Variables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case 2
                    Return Me._variables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case 2
                    Return GetRed(_variables, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitUsingStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitUsingStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="usingKeyword">
        ''' The value for the UsingKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="variables">
        ''' The value for the Variables property.
        ''' </param>
        Public Function Update(usingKeyword As SyntaxToken, expression As ExpressionSyntax, variables As SeparatedSyntaxList(Of VariableDeclaratorSyntax)) As UsingStatementSyntax
            If usingKeyword <> Me.UsingKeyword OrElse expression IsNot Me.Expression OrElse variables <> Me.Variables Then
                Dim newNode = SyntaxFactory.UsingStatement(usingKeyword, expression, variables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Throw statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ThrowStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ThrowStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), throwKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ThrowStatementSyntax(kind, errors, annotations, throwKeyword, if(expression IsNot Nothing, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Throw" keyword
        ''' </summary>
        Public ReadOnly Property ThrowKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ThrowStatementSyntax)._throwKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ThrowKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithThrowKeyword(throwKeyword as SyntaxToken) As ThrowStatementSyntax
            return Update(throwKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression denoting the value being thrown.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As ThrowStatementSyntax
            return Update(Me.ThrowKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitThrowStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitThrowStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="throwKeyword">
        ''' The value for the ThrowKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(throwKeyword As SyntaxToken, expression As ExpressionSyntax) As ThrowStatementSyntax
            If throwKeyword <> Me.ThrowKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.ThrowStatement(throwKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a simple, compound, or Mid assignment statement. Which one can be
    ''' determined by checking the Kind.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.MidAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.AddAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.SubtractAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.MultiplyAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DivideAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.IntegerDivideAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExponentiateAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.LeftShiftAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.RightShiftAssignmentStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ConcatenateAssignmentStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AssignmentStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _left as ExpressionSyntax
        Friend _right as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), left As ExpressionSyntax, operatorToken As InternalSyntax.PunctuationSyntax, right As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AssignmentStatementSyntax(kind, errors, annotations, DirectCast(left.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), operatorToken, DirectCast(right.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The target (left hand side) of the assignment.
        ''' </summary>
        Public ReadOnly Property Left As ExpressionSyntax
            Get
                Return GetRedAtZero(_left)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Left property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLeft(left as ExpressionSyntax) As AssignmentStatementSyntax
            return Update(Me.Kind, left, Me.OperatorToken, Me.Right)
        End Function

        ''' <summary>
        ''' The operator used in the assignment statement. One of "=", "+=", "-=", "*=",
        ''' "/=", "\=", "^=", "&amp;=", "&lt;&lt;=" or "&gt;&gt;=".
        ''' </summary>
        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AssignmentStatementSyntax)._operatorToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As AssignmentStatementSyntax
            return Update(Me.Kind, Me.Left, operatorToken, Me.Right)
        End Function

        ''' <summary>
        ''' The source (right hand side) of the assignment.
        ''' </summary>
        Public ReadOnly Property Right As ExpressionSyntax
            Get
                Return GetRed(_right, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Right property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithRight(right as ExpressionSyntax) As AssignmentStatementSyntax
            return Update(Me.Kind, Me.Left, Me.OperatorToken, right)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._left
                Case 2
                    Return Me._right
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Left
                Case 2
                    Return Me.Right
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAssignmentStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAssignmentStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="left">
        ''' The value for the Left property.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        ''' <param name="right">
        ''' The value for the Right property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, left As ExpressionSyntax, operatorToken As SyntaxToken, right As ExpressionSyntax) As AssignmentStatementSyntax
            If kind <> Me.Kind OrElse left IsNot Me.Left OrElse operatorToken <> Me.OperatorToken OrElse right IsNot Me.Right Then
                Dim newNode = SyntaxFactory.AssignmentStatement(kind, left, operatorToken, right)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a left-hand side of a MidAssignment statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.MidExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MidExpressionSyntax
        Inherits ExpressionSyntax

        Friend _argumentList as ArgumentListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), mid As InternalSyntax.IdentifierTokenSyntax, argumentList As ArgumentListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MidExpressionSyntax(kind, errors, annotations, mid, DirectCast(argumentList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Mid" possibly followed by a type character.
        ''' </summary>
        Public ReadOnly Property Mid As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MidExpressionSyntax)._mid, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Mid property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithMid(mid as SyntaxToken) As MidExpressionSyntax
            return Update(mid, Me.ArgumentList)
        End Function

        ''' <summary>
        ''' The argument list.
        ''' </summary>
        Public ReadOnly Property ArgumentList As ArgumentListSyntax
            Get
                Return GetRed(_argumentList, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArgumentList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgumentList(argumentList as ArgumentListSyntax) As MidExpressionSyntax
            return Update(Me.Mid, argumentList)
        End Function

        Public Shadows Function AddArgumentListArguments(ParamArray items As ArgumentSyntax()) As MidExpressionSyntax
            Dim _child = If(Me.ArgumentList IsNot Nothing, Me.ArgumentList, SyntaxFactory.ArgumentList())
            Return Me.WithArgumentList(_child.AddArguments(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._argumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.ArgumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMidExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMidExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="mid">
        ''' The value for the Mid property.
        ''' </param>
        ''' <param name="argumentList">
        ''' The value for the ArgumentList property.
        ''' </param>
        Public Function Update(mid As SyntaxToken, argumentList As ArgumentListSyntax) As MidExpressionSyntax
            If mid <> Me.Mid OrElse argumentList IsNot Me.ArgumentList Then
                Dim newNode = SyntaxFactory.MidExpression(mid, argumentList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represent a call statement (also known as a invocation statement).
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CallStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CallStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _invocation as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), callKeyword As InternalSyntax.KeywordSyntax, invocation As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CallStatementSyntax(kind, errors, annotations, callKeyword, DirectCast(invocation.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Call" keyword.
        ''' </summary>
        Public ReadOnly Property CallKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CallStatementSyntax)._callKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CallKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCallKeyword(callKeyword as SyntaxToken) As CallStatementSyntax
            return Update(callKeyword, Me.Invocation)
        End Function

        ''' <summary>
        ''' The expression denoting the call. This could be an Invocation or a MemberAccess
        ''' (in the case where no parentheses were supplied.)
        ''' </summary>
        Public ReadOnly Property Invocation As ExpressionSyntax
            Get
                Return GetRed(_invocation, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Invocation property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInvocation(invocation as ExpressionSyntax) As CallStatementSyntax
            return Update(Me.CallKeyword, invocation)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._invocation
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Invocation
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCallStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCallStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="callKeyword">
        ''' The value for the CallKeyword property.
        ''' </param>
        ''' <param name="invocation">
        ''' The value for the Invocation property.
        ''' </param>
        Public Function Update(callKeyword As SyntaxToken, invocation As ExpressionSyntax) As CallStatementSyntax
            If callKeyword <> Me.CallKeyword OrElse invocation IsNot Me.Invocation Then
                Dim newNode = SyntaxFactory.CallStatement(callKeyword, invocation)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an AddHandler or RemoveHandler statement. The Kind property
    ''' determines which one.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AddHandlerStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.RemoveHandlerStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AddRemoveHandlerStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _eventExpression as ExpressionSyntax
        Friend _delegateExpression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), addHandlerOrRemoveHandlerKeyword As InternalSyntax.KeywordSyntax, eventExpression As ExpressionSyntax, commaToken As InternalSyntax.PunctuationSyntax, delegateExpression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AddRemoveHandlerStatementSyntax(kind, errors, annotations, addHandlerOrRemoveHandlerKeyword, DirectCast(eventExpression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), commaToken, DirectCast(delegateExpression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "AddHandler" or "RemoveHandler" keyword.
        ''' </summary>
        Public ReadOnly Property AddHandlerOrRemoveHandlerKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AddRemoveHandlerStatementSyntax)._addHandlerOrRemoveHandlerKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AddHandlerOrRemoveHandlerKeyword property
        ''' changed to the specified value. Returns this instance if the specified value is
        ''' the same as the current value.
        ''' </summary>
        Public Shadows Function WithAddHandlerOrRemoveHandlerKeyword(addHandlerOrRemoveHandlerKeyword as SyntaxToken) As AddRemoveHandlerStatementSyntax
            return Update(Me.Kind, addHandlerOrRemoveHandlerKeyword, Me.EventExpression, Me.CommaToken, Me.DelegateExpression)
        End Function

        ''' <summary>
        ''' The event being accessed.
        ''' </summary>
        Public ReadOnly Property EventExpression As ExpressionSyntax
            Get
                Return GetRed(_eventExpression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EventExpression property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithEventExpression(eventExpression as ExpressionSyntax) As AddRemoveHandlerStatementSyntax
            return Update(Me.Kind, Me.AddHandlerOrRemoveHandlerKeyword, eventExpression, Me.CommaToken, Me.DelegateExpression)
        End Function

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public ReadOnly Property CommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AddRemoveHandlerStatementSyntax)._commaToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaToken(commaToken as SyntaxToken) As AddRemoveHandlerStatementSyntax
            return Update(Me.Kind, Me.AddHandlerOrRemoveHandlerKeyword, Me.EventExpression, commaToken, Me.DelegateExpression)
        End Function

        ''' <summary>
        ''' The delegate being added or removed.
        ''' </summary>
        Public ReadOnly Property DelegateExpression As ExpressionSyntax
            Get
                Return GetRed(_delegateExpression, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DelegateExpression property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithDelegateExpression(delegateExpression as ExpressionSyntax) As AddRemoveHandlerStatementSyntax
            return Update(Me.Kind, Me.AddHandlerOrRemoveHandlerKeyword, Me.EventExpression, Me.CommaToken, delegateExpression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._eventExpression
                Case 3
                    Return Me._delegateExpression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.EventExpression
                Case 3
                    Return Me.DelegateExpression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAddRemoveHandlerStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAddRemoveHandlerStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="addHandlerOrRemoveHandlerKeyword">
        ''' The value for the AddHandlerOrRemoveHandlerKeyword property.
        ''' </param>
        ''' <param name="eventExpression">
        ''' The value for the EventExpression property.
        ''' </param>
        ''' <param name="commaToken">
        ''' The value for the CommaToken property.
        ''' </param>
        ''' <param name="delegateExpression">
        ''' The value for the DelegateExpression property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, addHandlerOrRemoveHandlerKeyword As SyntaxToken, eventExpression As ExpressionSyntax, commaToken As SyntaxToken, delegateExpression As ExpressionSyntax) As AddRemoveHandlerStatementSyntax
            If kind <> Me.Kind OrElse addHandlerOrRemoveHandlerKeyword <> Me.AddHandlerOrRemoveHandlerKeyword OrElse eventExpression IsNot Me.EventExpression OrElse commaToken <> Me.CommaToken OrElse delegateExpression IsNot Me.DelegateExpression Then
                Dim newNode = SyntaxFactory.AddRemoveHandlerStatement(kind, addHandlerOrRemoveHandlerKeyword, eventExpression, commaToken, delegateExpression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represent a RaiseEvent statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.RaiseEventStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class RaiseEventStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _name as IdentifierNameSyntax
        Friend _argumentList as ArgumentListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), raiseEventKeyword As InternalSyntax.KeywordSyntax, name As IdentifierNameSyntax, argumentList As ArgumentListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RaiseEventStatementSyntax(kind, errors, annotations, raiseEventKeyword, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax), if(argumentList IsNot Nothing, DirectCast(argumentList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "RaiseEvent" keyword
        ''' </summary>
        Public ReadOnly Property RaiseEventKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RaiseEventStatementSyntax)._raiseEventKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the RaiseEventKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithRaiseEventKeyword(raiseEventKeyword as SyntaxToken) As RaiseEventStatementSyntax
            return Update(raiseEventKeyword, Me.Name, Me.ArgumentList)
        End Function

        ''' <summary>
        ''' The name of the event being raised.
        ''' </summary>
        Public ReadOnly Property Name As IdentifierNameSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as IdentifierNameSyntax) As RaiseEventStatementSyntax
            return Update(Me.RaiseEventKeyword, name, Me.ArgumentList)
        End Function

        ''' <summary>
        ''' The argument list, if present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ArgumentList As ArgumentListSyntax
            Get
                Return GetRed(_argumentList, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArgumentList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgumentList(argumentList as ArgumentListSyntax) As RaiseEventStatementSyntax
            return Update(Me.RaiseEventKeyword, Me.Name, argumentList)
        End Function

        Public Shadows Function AddArgumentListArguments(ParamArray items As ArgumentSyntax()) As RaiseEventStatementSyntax
            Dim _child = If(Me.ArgumentList IsNot Nothing, Me.ArgumentList, SyntaxFactory.ArgumentList())
            Return Me.WithArgumentList(_child.AddArguments(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._name
                Case 2
                    Return Me._argumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Name
                Case 2
                    Return Me.ArgumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitRaiseEventStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitRaiseEventStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="raiseEventKeyword">
        ''' The value for the RaiseEventKeyword property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="argumentList">
        ''' The value for the ArgumentList property.
        ''' </param>
        Public Function Update(raiseEventKeyword As SyntaxToken, name As IdentifierNameSyntax, argumentList As ArgumentListSyntax) As RaiseEventStatementSyntax
            If raiseEventKeyword <> Me.RaiseEventKeyword OrElse name IsNot Me.Name OrElse argumentList IsNot Me.ArgumentList Then
                Dim newNode = SyntaxFactory.RaiseEventStatement(raiseEventKeyword, name, argumentList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "With" statement. This statement always occurs as the
    ''' BeginStatement of a WithBlock, and the body of the With is the Body of that
    ''' WithBlock.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WithStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WithStatementSyntax
        Inherits StatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), withKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithStatementSyntax(kind, errors, annotations, withKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "With" keyword.
        ''' </summary>
        Public ReadOnly Property WithKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WithStatementSyntax)._withKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WithKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWithKeyword(withKeyword as SyntaxToken) As WithStatementSyntax
            return Update(withKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression that is the operand of the With statement.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As WithStatementSyntax
            return Update(Me.WithKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWithStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWithStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="withKeyword">
        ''' The value for the WithKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(withKeyword As SyntaxToken, expression As ExpressionSyntax) As WithStatementSyntax
            If withKeyword <> Me.WithKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.WithStatement(withKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a ReDim statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ReDimStatement"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ReDimPreserveStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ReDimStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _clauses as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), reDimKeyword As InternalSyntax.KeywordSyntax, preserveKeyword As InternalSyntax.KeywordSyntax, clauses As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReDimStatementSyntax(kind, errors, annotations, reDimKeyword, preserveKeyword, if(clauses IsNot Nothing, clauses.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "ReDim" keyword.
        ''' </summary>
        Public ReadOnly Property ReDimKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReDimStatementSyntax)._reDimKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ReDimKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithReDimKeyword(reDimKeyword as SyntaxToken) As ReDimStatementSyntax
            return Update(Me.Kind, reDimKeyword, Me.PreserveKeyword, Me.Clauses)
        End Function

        ''' <summary>
        ''' Returns Nothing if Kind=ReDim, returns the "Preserve" keyword if
        ''' Kind=RedimPreserve.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property PreserveKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReDimStatementSyntax)._preserveKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the PreserveKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithPreserveKeyword(preserveKeyword as SyntaxToken) As ReDimStatementSyntax
            return Update(Me.Kind, Me.ReDimKeyword, preserveKeyword, Me.Clauses)
        End Function

        ''' <summary>
        ''' The list of ReDim clauses.
        ''' </summary>
        Public ReadOnly Property Clauses As SeparatedSyntaxList(Of RedimClauseSyntax)
            Get
                Dim listNode = GetRed(_clauses, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of RedimClauseSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Clauses property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithClauses(clauses as SeparatedSyntaxList(Of RedimClauseSyntax)) As ReDimStatementSyntax
            return Update(Me.Kind, Me.ReDimKeyword, Me.PreserveKeyword, clauses)
        End Function

        Public Shadows Function AddClauses(ParamArray items As RedimClauseSyntax()) As ReDimStatementSyntax
            Return Me.WithClauses(Me.Clauses.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._clauses
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return GetRed(_clauses, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitReDimStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitReDimStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="reDimKeyword">
        ''' The value for the ReDimKeyword property.
        ''' </param>
        ''' <param name="preserveKeyword">
        ''' The value for the PreserveKeyword property.
        ''' </param>
        ''' <param name="clauses">
        ''' The value for the Clauses property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, reDimKeyword As SyntaxToken, preserveKeyword As SyntaxToken, clauses As SeparatedSyntaxList(Of RedimClauseSyntax)) As ReDimStatementSyntax
            If kind <> Me.Kind OrElse reDimKeyword <> Me.ReDimKeyword OrElse preserveKeyword <> Me.PreserveKeyword OrElse clauses <> Me.Clauses Then
                Dim newNode = SyntaxFactory.ReDimStatement(kind, reDimKeyword, preserveKeyword, clauses)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a ReDim statement clause.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.RedimClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class RedimClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _expression as ExpressionSyntax
        Friend _arrayBounds as ArgumentListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), expression As ExpressionSyntax, arrayBounds As ArgumentListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RedimClauseSyntax(kind, errors, annotations, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), DirectCast(arrayBounds.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The target of the ReDim statement.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRedAtZero(_expression)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As RedimClauseSyntax
            return Update(expression, Me.ArrayBounds)
        End Function

        ''' <summary>
        ''' The ArraySizeInitializationModifier.
        ''' </summary>
        Public ReadOnly Property ArrayBounds As ArgumentListSyntax
            Get
                Return GetRed(_arrayBounds, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArrayBounds property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArrayBounds(arrayBounds as ArgumentListSyntax) As RedimClauseSyntax
            return Update(Me.Expression, arrayBounds)
        End Function

        Public Shadows Function AddArrayBoundsArguments(ParamArray items As ArgumentSyntax()) As RedimClauseSyntax
            Dim _child = If(Me.ArrayBounds IsNot Nothing, Me.ArrayBounds, SyntaxFactory.ArgumentList())
            Return Me.WithArrayBounds(_child.AddArguments(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._expression
                Case 1
                    Return Me._arrayBounds
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Expression
                Case 1
                    Return Me.ArrayBounds
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitRedimClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitRedimClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="arrayBounds">
        ''' The value for the ArrayBounds property.
        ''' </param>
        Public Function Update(expression As ExpressionSyntax, arrayBounds As ArgumentListSyntax) As RedimClauseSyntax
            If expression IsNot Me.Expression OrElse arrayBounds IsNot Me.ArrayBounds Then
                Dim newNode = SyntaxFactory.RedimClause(expression, arrayBounds)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an "Erase" statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EraseStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EraseStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _expressions as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), eraseKeyword As InternalSyntax.KeywordSyntax, expressions As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EraseStatementSyntax(kind, errors, annotations, eraseKeyword, if(expressions IsNot Nothing, expressions.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Erase" keyword.
        ''' </summary>
        Public ReadOnly Property EraseKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EraseStatementSyntax)._eraseKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EraseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEraseKeyword(eraseKeyword as SyntaxToken) As EraseStatementSyntax
            return Update(eraseKeyword, Me.Expressions)
        End Function

        ''' <summary>
        ''' A list of expressions denoting the arrays to erase.
        ''' </summary>
        Public ReadOnly Property Expressions As SeparatedSyntaxList(Of ExpressionSyntax)
            Get
                Dim listNode = GetRed(_expressions, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ExpressionSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expressions property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpressions(expressions as SeparatedSyntaxList(Of ExpressionSyntax)) As EraseStatementSyntax
            return Update(Me.EraseKeyword, expressions)
        End Function

        Public Shadows Function AddExpressions(ParamArray items As ExpressionSyntax()) As EraseStatementSyntax
            Return Me.WithExpressions(Me.Expressions.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expressions
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_expressions, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEraseStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEraseStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="eraseKeyword">
        ''' The value for the EraseKeyword property.
        ''' </param>
        ''' <param name="expressions">
        ''' The value for the Expressions property.
        ''' </param>
        Public Function Update(eraseKeyword As SyntaxToken, expressions As SeparatedSyntaxList(Of ExpressionSyntax)) As EraseStatementSyntax
            If eraseKeyword <> Me.EraseKeyword OrElse expressions <> Me.Expressions Then
                Dim newNode = SyntaxFactory.EraseStatement(eraseKeyword, expressions)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' An abstract base class for all node classes that define expressions.
    ''' </summary>
    Public MustInherit Class ExpressionSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents a literal. The kind of literal is determined by the Kind property:
    ''' IntegerLiteral, CharacterLiteral, BooleanLiteral, DecimalLiteral,
    ''' FloatingLiteral, DateLiteral or StringLiteral. The value of the literal can be
    ''' determined by casting the associated Token to the correct type and getting the
    ''' value from the token.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CharacterLiteralExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.TrueLiteralExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.FalseLiteralExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.NumericLiteralExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DateLiteralExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.StringLiteralExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.NothingLiteralExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class LiteralExpressionSyntax
        Inherits ExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), token As InternalSyntax.SyntaxToken)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LiteralExpressionSyntax(kind, errors, annotations, token), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The token that represents the literal. The Kind property determines what type
        ''' this property returns: Kind=IntegerLiteral ==&gt; Returns IntegerLiteralToken.
        ''' Kind=CharacterLiteral ==&gt; Returns CharacterLiteralToken. Kind=DecimalLiteral
        ''' ==&gt; Returns DecimalLiteralToken Kind=FloatingLiteral ==&gt; Returns
        ''' FloatingLiteralToken Kind=DateLiteral ==&gt; Returns DateLiteralToken
        ''' Kind=StringLiteral ==&gt; Returns StringLiteralToken Kind=BooleanLiteral ==&gt;
        ''' Returns Keyword (with it's kind being TrueKeyword or FalseKeyword)
        ''' Kind=NothingLiteral ==&gt; Returns Keyword (with it's kind being
        ''' NothingKeyword)
        ''' </summary>
        Public ReadOnly Property Token As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LiteralExpressionSyntax)._token, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Token property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithToken(token as SyntaxToken) As LiteralExpressionSyntax
            return Update(Me.Kind, token)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitLiteralExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitLiteralExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="token">
        ''' The value for the Token property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, token As SyntaxToken) As LiteralExpressionSyntax
            If kind <> Me.Kind OrElse token <> Me.Token Then
                Dim newNode = SyntaxFactory.LiteralExpression(kind, token)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a parenthesized expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ParenthesizedExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ParenthesizedExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParenthesizedExpressionSyntax(kind, errors, annotations, openParenToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParenthesizedExpressionSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As ParenthesizedExpressionSyntax
            return Update(openParenToken, Me.Expression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The expression inside the parentheses.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As ParenthesizedExpressionSyntax
            return Update(Me.OpenParenToken, expression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParenthesizedExpressionSyntax)._closeParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As ParenthesizedExpressionSyntax
            return Update(Me.OpenParenToken, Me.Expression, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitParenthesizedExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitParenthesizedExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, expression As ExpressionSyntax, closeParenToken As SyntaxToken) As ParenthesizedExpressionSyntax
            If openParenToken <> Me.OpenParenToken OrElse expression IsNot Me.Expression OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.ParenthesizedExpression(openParenToken, expression, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a tuple literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TupleExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TupleExpressionSyntax
        Inherits ExpressionSyntax

        Friend _arguments as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, arguments As SyntaxNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TupleExpressionSyntax(kind, errors, annotations, openParenToken, if(arguments IsNot Nothing, arguments.Green, Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TupleExpressionSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As TupleExpressionSyntax
            return Update(openParenToken, Me.Arguments, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The list of tuple arguments.
        ''' </summary>
        Public ReadOnly Property Arguments As SeparatedSyntaxList(Of SimpleArgumentSyntax)
            Get
                Dim listNode = GetRed(_arguments, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of SimpleArgumentSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Arguments property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArguments(arguments as SeparatedSyntaxList(Of SimpleArgumentSyntax)) As TupleExpressionSyntax
            return Update(Me.OpenParenToken, arguments, Me.CloseParenToken)
        End Function

        Public Shadows Function AddArguments(ParamArray items As SimpleArgumentSyntax()) As TupleExpressionSyntax
            Return Me.WithArguments(Me.Arguments.AddRange(items))
        End Function

        ''' <summary>
        ''' The ")" token
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TupleExpressionSyntax)._closeParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As TupleExpressionSyntax
            return Update(Me.OpenParenToken, Me.Arguments, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._arguments
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_arguments, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTupleExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTupleExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="arguments">
        ''' The value for the Arguments property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, arguments As SeparatedSyntaxList(Of SimpleArgumentSyntax), closeParenToken As SyntaxToken) As TupleExpressionSyntax
            If openParenToken <> Me.OpenParenToken OrElse arguments <> Me.Arguments OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.TupleExpression(openParenToken, arguments, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a tuple type expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TupleType"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TupleTypeSyntax
        Inherits TypeSyntax

        Friend _elements as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, elements As SyntaxNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TupleTypeSyntax(kind, errors, annotations, openParenToken, if(elements IsNot Nothing, elements.Green, Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TupleTypeSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As TupleTypeSyntax
            return Update(openParenToken, Me.Elements, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The list of tuple elements.
        ''' </summary>
        Public ReadOnly Property Elements As SeparatedSyntaxList(Of TupleElementSyntax)
            Get
                Dim listNode = GetRed(_elements, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of TupleElementSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Elements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElements(elements as SeparatedSyntaxList(Of TupleElementSyntax)) As TupleTypeSyntax
            return Update(Me.OpenParenToken, elements, Me.CloseParenToken)
        End Function

        Public Shadows Function AddElements(ParamArray items As TupleElementSyntax()) As TupleTypeSyntax
            Return Me.WithElements(Me.Elements.AddRange(items))
        End Function

        ''' <summary>
        ''' The ")" token
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TupleTypeSyntax)._closeParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As TupleTypeSyntax
            return Update(Me.OpenParenToken, Me.Elements, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._elements
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_elements, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTupleType(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTupleType(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="elements">
        ''' The value for the Elements property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, elements As SeparatedSyntaxList(Of TupleElementSyntax), closeParenToken As SyntaxToken) As TupleTypeSyntax
            If openParenToken <> Me.OpenParenToken OrElse elements <> Me.Elements OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.TupleType(openParenToken, elements, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single declaration of a tuple element.
    ''' </summary>
    Public MustInherit Class TupleElementSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents a single declaration of a tuple element supplying only the type.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypedTupleElement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypedTupleElementSyntax
        Inherits TupleElementSyntax

        Friend _type as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), type As TypeSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypedTupleElementSyntax(kind, errors, annotations, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The type-name part of the tuple element syntax.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRedAtZero(_type)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As TypedTupleElementSyntax
            return Update(type)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me._type
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me.Type
            Else
                Return Nothing
            End If
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypedTupleElement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypedTupleElement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        Public Function Update(type As TypeSyntax) As TypedTupleElementSyntax
            If type IsNot Me.Type Then
                Dim newNode = SyntaxFactory.TypedTupleElement(type)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a single declaration of a tuple element supplying element name and
    ''' optionally a type.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NamedTupleElement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NamedTupleElementSyntax
        Inherits TupleElementSyntax

        Friend _asClause as SimpleAsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As InternalSyntax.IdentifierTokenSyntax, asClause As SimpleAsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamedTupleElementSyntax(kind, errors, annotations, identifier, if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The name of the element.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NamedTupleElementSyntax)._identifier, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As NamedTupleElementSyntax
            return Update(identifier, Me.AsClause)
        End Function

        ''' <summary>
        ''' A simple "As" clause specifying the type of the tuple element.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As NamedTupleElementSyntax
            return Update(Me.Identifier, asClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._asClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.AsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNamedTupleElement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNamedTupleElement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        Public Function Update(identifier As SyntaxToken, asClause As SimpleAsClauseSyntax) As NamedTupleElementSyntax
            If identifier <> Me.Identifier OrElse asClause IsNot Me.AsClause Then
                Dim newNode = SyntaxFactory.NamedTupleElement(identifier, asClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Identifies one of the special instances "Me", "MyClass" or "MyBase". The Kind
    ''' property identifies which.
    ''' </summary>
    Public MustInherit Class InstanceExpressionSyntax
        Inherits ExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The "Me", "MyClass" or "MyBase" keyword.
        ''' </summary>
        Public ReadOnly Property Keyword As SyntaxToken
            Get
                Return Me.GetKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetKeywordCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InstanceExpressionSyntax)._keyword, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithKeyword(keyword As SyntaxToken) As InstanceExpressionSyntax
            Return WithKeywordCore(keyword)
        End Function
        Friend MustOverride Function WithKeywordCore(keyword As SyntaxToken) As InstanceExpressionSyntax

    End Class

    ''' <summary>
    ''' Identifies the special instance "Me"
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.MeExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MeExpressionSyntax
        Inherits InstanceExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MeExpressionSyntax(kind, errors, annotations, keyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Me", "MyClass" or "MyBase" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MeExpressionSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetKeywordCore() As SyntaxToken
            Return Me.Keyword
        End Function

        Friend Overrides Function WithKeywordCore(keyword As SyntaxToken) As InstanceExpressionSyntax
            Return WithKeyword(keyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As MeExpressionSyntax
            return Update(keyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMeExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMeExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken) As MeExpressionSyntax
            If keyword <> Me.Keyword Then
                Dim newNode = SyntaxFactory.MeExpression(keyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Identifies the special instance "MyBase"
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.MyBaseExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MyBaseExpressionSyntax
        Inherits InstanceExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MyBaseExpressionSyntax(kind, errors, annotations, keyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Me", "MyClass" or "MyBase" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MyBaseExpressionSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetKeywordCore() As SyntaxToken
            Return Me.Keyword
        End Function

        Friend Overrides Function WithKeywordCore(keyword As SyntaxToken) As InstanceExpressionSyntax
            Return WithKeyword(keyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As MyBaseExpressionSyntax
            return Update(keyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMyBaseExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMyBaseExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken) As MyBaseExpressionSyntax
            If keyword <> Me.Keyword Then
                Dim newNode = SyntaxFactory.MyBaseExpression(keyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Identifies the special instance "MyClass"
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.MyClassExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MyClassExpressionSyntax
        Inherits InstanceExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MyClassExpressionSyntax(kind, errors, annotations, keyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Me", "MyClass" or "MyBase" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MyClassExpressionSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetKeywordCore() As SyntaxToken
            Return Me.Keyword
        End Function

        Friend Overrides Function WithKeywordCore(keyword As SyntaxToken) As InstanceExpressionSyntax
            Return WithKeyword(keyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As MyClassExpressionSyntax
            return Update(keyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMyClassExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMyClassExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken) As MyClassExpressionSyntax
            If keyword <> Me.Keyword Then
                Dim newNode = SyntaxFactory.MyClassExpression(keyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a GetType expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GetTypeExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GetTypeExpressionSyntax
        Inherits ExpressionSyntax

        Friend _type as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), getTypeKeyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, type As TypeSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetTypeExpressionSyntax(kind, errors, annotations, getTypeKeyword, openParenToken, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "GetType" keyword.
        ''' </summary>
        Public ReadOnly Property GetTypeKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetTypeExpressionSyntax)._getTypeKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GetTypeKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithGetTypeKeyword(getTypeKeyword as SyntaxToken) As GetTypeExpressionSyntax
            return Update(getTypeKeyword, Me.OpenParenToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetTypeExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As GetTypeExpressionSyntax
            return Update(Me.GetTypeKeyword, openParenToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The type to get the Type object for. This can be an open generic type.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As GetTypeExpressionSyntax
            return Update(Me.GetTypeKeyword, Me.OpenParenToken, type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetTypeExpressionSyntax)._closeParenToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As GetTypeExpressionSyntax
            return Update(Me.GetTypeKeyword, Me.OpenParenToken, Me.Type, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._type
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Type
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGetTypeExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGetTypeExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="getTypeKeyword">
        ''' The value for the GetTypeKeyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(getTypeKeyword As SyntaxToken, openParenToken As SyntaxToken, type As TypeSyntax, closeParenToken As SyntaxToken) As GetTypeExpressionSyntax
            If getTypeKeyword <> Me.GetTypeKeyword OrElse openParenToken <> Me.OpenParenToken OrElse type IsNot Me.Type OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.GetTypeExpression(getTypeKeyword, openParenToken, type, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a TypeOf...Is or IsNot expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypeOfIsExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.TypeOfIsNotExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypeOfExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax
        Friend _type as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), typeOfKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax, operatorToken As InternalSyntax.KeywordSyntax, type As TypeSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeOfExpressionSyntax(kind, errors, annotations, typeOfKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), operatorToken, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "TypeOf" keyword.
        ''' </summary>
        Public ReadOnly Property TypeOfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeOfExpressionSyntax)._typeOfKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TypeOfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTypeOfKeyword(typeOfKeyword as SyntaxToken) As TypeOfExpressionSyntax
            return Update(Me.Kind, typeOfKeyword, Me.Expression, Me.OperatorToken, Me.Type)
        End Function

        ''' <summary>
        ''' The expression being tested.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As TypeOfExpressionSyntax
            return Update(Me.Kind, Me.TypeOfKeyword, expression, Me.OperatorToken, Me.Type)
        End Function

        ''' <summary>
        ''' The "Is" or "IsNot" keyword.
        ''' </summary>
        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeOfExpressionSyntax)._operatorToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As TypeOfExpressionSyntax
            return Update(Me.Kind, Me.TypeOfKeyword, Me.Expression, operatorToken, Me.Type)
        End Function

        ''' <summary>
        ''' The name of the type being tested against.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As TypeOfExpressionSyntax
            return Update(Me.Kind, Me.TypeOfKeyword, Me.Expression, Me.OperatorToken, type)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case 3
                    Return Me._type
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case 3
                    Return Me.Type
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypeOfExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypeOfExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="typeOfKeyword">
        ''' The value for the TypeOfKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, typeOfKeyword As SyntaxToken, expression As ExpressionSyntax, operatorToken As SyntaxToken, type As TypeSyntax) As TypeOfExpressionSyntax
            If kind <> Me.Kind OrElse typeOfKeyword <> Me.TypeOfKeyword OrElse expression IsNot Me.Expression OrElse operatorToken <> Me.OperatorToken OrElse type IsNot Me.Type Then
                Dim newNode = SyntaxFactory.TypeOfExpression(kind, typeOfKeyword, expression, operatorToken, type)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a GetXmlNamespace expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GetXmlNamespaceExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GetXmlNamespaceExpressionSyntax
        Inherits ExpressionSyntax

        Friend _name as XmlPrefixNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), getXmlNamespaceKeyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, name As XmlPrefixNameSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetXmlNamespaceExpressionSyntax(kind, errors, annotations, getXmlNamespaceKeyword, openParenToken, if(name IsNot Nothing, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlPrefixNameSyntax), Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "GetXmlNamespace" keyword.
        ''' </summary>
        Public ReadOnly Property GetXmlNamespaceKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetXmlNamespaceExpressionSyntax)._getXmlNamespaceKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GetXmlNamespaceKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithGetXmlNamespaceKeyword(getXmlNamespaceKeyword as SyntaxToken) As GetXmlNamespaceExpressionSyntax
            return Update(getXmlNamespaceKeyword, Me.OpenParenToken, Me.Name, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetXmlNamespaceExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As GetXmlNamespaceExpressionSyntax
            return Update(Me.GetXmlNamespaceKeyword, openParenToken, Me.Name, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The Xml namespace name being referenced.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Name As XmlPrefixNameSyntax
            Get
                Return GetRed(_name, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlPrefixNameSyntax) As GetXmlNamespaceExpressionSyntax
            return Update(Me.GetXmlNamespaceKeyword, Me.OpenParenToken, name, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GetXmlNamespaceExpressionSyntax)._closeParenToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As GetXmlNamespaceExpressionSyntax
            return Update(Me.GetXmlNamespaceKeyword, Me.OpenParenToken, Me.Name, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGetXmlNamespaceExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGetXmlNamespaceExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="getXmlNamespaceKeyword">
        ''' The value for the GetXmlNamespaceKeyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(getXmlNamespaceKeyword As SyntaxToken, openParenToken As SyntaxToken, name As XmlPrefixNameSyntax, closeParenToken As SyntaxToken) As GetXmlNamespaceExpressionSyntax
            If getXmlNamespaceKeyword <> Me.GetXmlNamespaceKeyword OrElse openParenToken <> Me.OpenParenToken OrElse name IsNot Me.Name OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.GetXmlNamespaceExpression(getXmlNamespaceKeyword, openParenToken, name, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents member access (.name) or dictionary access (!name). The Kind
    ''' property determines which kind of access.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleMemberAccessExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DictionaryAccessExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MemberAccessExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax
        Friend _name as SimpleNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), expression As ExpressionSyntax, operatorToken As InternalSyntax.PunctuationSyntax, name As SimpleNameSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MemberAccessExpressionSyntax(kind, errors, annotations, if(expression IsNot Nothing, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing), operatorToken, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleNameSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The expression on the left-hand-side of the "." or "!" token.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRedAtZero(_expression)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As MemberAccessExpressionSyntax
            return Update(Me.Kind, expression, Me.OperatorToken, Me.Name)
        End Function

        ''' <summary>
        ''' The "." or "!" token.
        ''' </summary>
        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MemberAccessExpressionSyntax)._operatorToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As MemberAccessExpressionSyntax
            return Update(Me.Kind, Me.Expression, operatorToken, Me.Name)
        End Function

        ''' <summary>
        ''' The identifier after the "." or "!" token.
        ''' </summary>
        Public ReadOnly Property Name As SimpleNameSyntax
            Get
                Return GetRed(_name, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as SimpleNameSyntax) As MemberAccessExpressionSyntax
            return Update(Me.Kind, Me.Expression, Me.OperatorToken, name)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._expression
                Case 2
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Expression
                Case 2
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMemberAccessExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMemberAccessExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, expression As ExpressionSyntax, operatorToken As SyntaxToken, name As SimpleNameSyntax) As MemberAccessExpressionSyntax
            If kind <> Me.Kind OrElse expression IsNot Me.Expression OrElse operatorToken <> Me.OperatorToken OrElse name IsNot Me.Name Then
                Dim newNode = SyntaxFactory.MemberAccessExpression(kind, expression, operatorToken, name)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML member element access (node.&lt;Element&gt;), attribute
    ''' access (node.@Attribute) or descendants access (node...&lt;Descendant&gt;). The
    ''' Kind property determines which kind of access.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlElementAccessExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.XmlDescendantAccessExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.XmlAttributeAccessExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlMemberAccessExpressionSyntax
        Inherits ExpressionSyntax

        Friend _base as ExpressionSyntax
        Friend _name as XmlNodeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), base As ExpressionSyntax, token1 As InternalSyntax.PunctuationSyntax, token2 As InternalSyntax.PunctuationSyntax, token3 As InternalSyntax.PunctuationSyntax, name As XmlNodeSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlMemberAccessExpressionSyntax(kind, errors, annotations, if(base IsNot Nothing, DirectCast(base.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing), token1, token2, token3, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNodeSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The expression on the left-hand-side of the ".", ".@" or "..." .
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Base As ExpressionSyntax
            Get
                Return GetRedAtZero(_base)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Base property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithBase(base as ExpressionSyntax) As XmlMemberAccessExpressionSyntax
            return Update(Me.Kind, base, Me.Token1, Me.Token2, Me.Token3, Me.Name)
        End Function

        ''' <summary>
        ''' The initial dot "." part of the separator.
        ''' </summary>
        Public ReadOnly Property Token1 As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlMemberAccessExpressionSyntax)._token1, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Token1 property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithToken1(token1 as SyntaxToken) As XmlMemberAccessExpressionSyntax
            return Update(Me.Kind, Me.Base, token1, Me.Token2, Me.Token3, Me.Name)
        End Function

        ''' <summary>
        ''' The "@" part of .@ or the second "." of "...".
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Token2 As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlMemberAccessExpressionSyntax)._token2
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(2), Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Token2 property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithToken2(token2 as SyntaxToken) As XmlMemberAccessExpressionSyntax
            return Update(Me.Kind, Me.Base, Me.Token1, token2, Me.Token3, Me.Name)
        End Function

        ''' <summary>
        ''' The third "." in a "..." separator.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Token3 As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlMemberAccessExpressionSyntax)._token3
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(3), Me.GetChildIndex(3))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Token3 property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithToken3(token3 as SyntaxToken) As XmlMemberAccessExpressionSyntax
            return Update(Me.Kind, Me.Base, Me.Token1, Me.Token2, token3, Me.Name)
        End Function

        ''' <summary>
        ''' The identifier after the ".", ".@" or "..."
        ''' </summary>
        Public ReadOnly Property Name As XmlNodeSyntax
            Get
                Return GetRed(_name, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNodeSyntax) As XmlMemberAccessExpressionSyntax
            return Update(Me.Kind, Me.Base, Me.Token1, Me.Token2, Me.Token3, name)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._base
                Case 4
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Base
                Case 4
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlMemberAccessExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlMemberAccessExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="base">
        ''' The value for the Base property.
        ''' </param>
        ''' <param name="token1">
        ''' The value for the Token1 property.
        ''' </param>
        ''' <param name="token2">
        ''' The value for the Token2 property.
        ''' </param>
        ''' <param name="token3">
        ''' The value for the Token3 property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, base As ExpressionSyntax, token1 As SyntaxToken, token2 As SyntaxToken, token3 As SyntaxToken, name As XmlNodeSyntax) As XmlMemberAccessExpressionSyntax
            If kind <> Me.Kind OrElse base IsNot Me.Base OrElse token1 <> Me.Token1 OrElse token2 <> Me.Token2 OrElse token3 <> Me.Token3 OrElse name IsNot Me.Name Then
                Dim newNode = SyntaxFactory.XmlMemberAccessExpression(kind, base, token1, token2, token3, name)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an invocation expression consisting of an invocation target and an
    ''' optional argument list or an array, parameterized property or object default
    ''' property index.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InvocationExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InvocationExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax
        Friend _argumentList as ArgumentListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), expression As ExpressionSyntax, argumentList As ArgumentListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InvocationExpressionSyntax(kind, errors, annotations, if(expression IsNot Nothing, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing), if(argumentList IsNot Nothing, DirectCast(argumentList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The target of the call or index expression.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRedAtZero(_expression)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As InvocationExpressionSyntax
            return Update(expression, Me.ArgumentList)
        End Function

        ''' <summary>
        ''' The argument list.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ArgumentList As ArgumentListSyntax
            Get
                Return GetRed(_argumentList, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArgumentList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgumentList(argumentList as ArgumentListSyntax) As InvocationExpressionSyntax
            return Update(Me.Expression, argumentList)
        End Function

        Public Shadows Function AddArgumentListArguments(ParamArray items As ArgumentSyntax()) As InvocationExpressionSyntax
            Dim _child = If(Me.ArgumentList IsNot Nothing, Me.ArgumentList, SyntaxFactory.ArgumentList())
            Return Me.WithArgumentList(_child.AddArguments(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._expression
                Case 1
                    Return Me._argumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Expression
                Case 1
                    Return Me.ArgumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInvocationExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInvocationExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="argumentList">
        ''' The value for the ArgumentList property.
        ''' </param>
        Public Function Update(expression As ExpressionSyntax, argumentList As ArgumentListSyntax) As InvocationExpressionSyntax
            If expression IsNot Me.Expression OrElse argumentList IsNot Me.ArgumentList Then
                Dim newNode = SyntaxFactory.InvocationExpression(expression, argumentList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Base class for object, array and anonymous object creation expressions
    ''' </summary>
    Partial Public MustInherit Class NewExpressionSyntax
        Inherits ExpressionSyntax

        Friend _attributeLists as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The "New" keyword.
        ''' </summary>
        Public ReadOnly Property NewKeyword As SyntaxToken
            Get
                Return Me.GetNewKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetNewKeywordCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NewExpressionSyntax)._newKeyword, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the NewKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithNewKeyword(newKeyword As SyntaxToken) As NewExpressionSyntax
            Return WithNewKeywordCore(newKeyword)
        End Function
        Friend MustOverride Function WithNewKeywordCore(newKeyword As SyntaxToken) As NewExpressionSyntax

        ''' <summary>
        ''' A list of all attribute lists on the type. If no attributes were specified, an
        ''' empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Return Me.GetAttributeListsCore()
            End Get
        End Property

        Friend Overridable Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Dim listNode = GetRed(_attributeLists, 1)
            Return new SyntaxList(Of AttributeListSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithAttributeLists(attributeLists As SyntaxList(Of AttributeListSyntax)) As NewExpressionSyntax
            Return WithAttributeListsCore(attributeLists)
        End Function
        Friend MustOverride Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As NewExpressionSyntax

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As NewExpressionSyntax
            Return AddAttributeListsCore(items)
        End Function
        Friend MustOverride Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As NewExpressionSyntax
    End Class

    ''' <summary>
    ''' Represents a New expression that creates a new non-array object, possibly with
    ''' a "With" or "From" clause.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ObjectCreationExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ObjectCreationExpressionSyntax
        Inherits NewExpressionSyntax

        Friend _type as TypeSyntax
        Friend _argumentList as ArgumentListSyntax
        Friend _initializer as ObjectCreationInitializerSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), newKeyword As InternalSyntax.KeywordSyntax, attributeLists As SyntaxNode, type As TypeSyntax, argumentList As ArgumentListSyntax, initializer As ObjectCreationInitializerSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectCreationExpressionSyntax(kind, errors, annotations, newKeyword, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), if(argumentList IsNot Nothing, DirectCast(argumentList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax), Nothing), if(initializer IsNot Nothing, DirectCast(initializer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectCreationInitializerSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "New" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property NewKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectCreationExpressionSyntax)._newKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetNewKeywordCore() As SyntaxToken
            Return Me.NewKeyword
        End Function

        Friend Overrides Function WithNewKeywordCore(newKeyword As SyntaxToken) As NewExpressionSyntax
            Return WithNewKeyword(newKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the NewKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNewKeyword(newKeyword as SyntaxToken) As ObjectCreationExpressionSyntax
            return Update(newKeyword, Me.AttributeLists, Me.Type, Me.ArgumentList, Me.Initializer)
        End Function

        ''' <summary>
        ''' A list of all attribute lists on the type. If no attributes were specified, an
        ''' empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRed(_attributeLists, 1)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As NewExpressionSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As ObjectCreationExpressionSyntax
            return Update(Me.NewKeyword, attributeLists, Me.Type, Me.ArgumentList, Me.Initializer)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As ObjectCreationExpressionSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As NewExpressionSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' The type of the object being initialized.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As ObjectCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, type, Me.ArgumentList, Me.Initializer)
        End Function

        ''' <summary>
        ''' The argument list, if present. If no argument list was supplied, Nothing is
        ''' returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ArgumentList As ArgumentListSyntax
            Get
                Return GetRed(_argumentList, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArgumentList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgumentList(argumentList as ArgumentListSyntax) As ObjectCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, Me.Type, argumentList, Me.Initializer)
        End Function

        Public Shadows Function AddArgumentListArguments(ParamArray items As ArgumentSyntax()) As ObjectCreationExpressionSyntax
            Dim _child = If(Me.ArgumentList IsNot Nothing, Me.ArgumentList, SyntaxFactory.ArgumentList())
            Return Me.WithArgumentList(_child.AddArguments(items))
        End Function

        ''' <summary>
        ''' An optional From or With clause to initialize the new object.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Initializer As ObjectCreationInitializerSyntax
            Get
                Return GetRed(_initializer, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializer property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializer(initializer as ObjectCreationInitializerSyntax) As ObjectCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, Me.Type, Me.ArgumentList, initializer)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._attributeLists
                Case 2
                    Return Me._type
                Case 3
                    Return Me._argumentList
                Case 4
                    Return Me._initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_attributeLists, 1)
                Case 2
                    Return Me.Type
                Case 3
                    Return Me.ArgumentList
                Case 4
                    Return Me.Initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitObjectCreationExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitObjectCreationExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="newKeyword">
        ''' The value for the NewKeyword property.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        ''' <param name="argumentList">
        ''' The value for the ArgumentList property.
        ''' </param>
        ''' <param name="initializer">
        ''' The value for the Initializer property.
        ''' </param>
        Public Function Update(newKeyword As SyntaxToken, attributeLists As SyntaxList(of AttributeListSyntax), type As TypeSyntax, argumentList As ArgumentListSyntax, initializer As ObjectCreationInitializerSyntax) As ObjectCreationExpressionSyntax
            If newKeyword <> Me.NewKeyword OrElse attributeLists <> Me.AttributeLists OrElse type IsNot Me.Type OrElse argumentList IsNot Me.ArgumentList OrElse initializer IsNot Me.Initializer Then
                Dim newNode = SyntaxFactory.ObjectCreationExpression(newKeyword, attributeLists, type, argumentList, initializer)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a New expression that create an object of anonymous type.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AnonymousObjectCreationExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AnonymousObjectCreationExpressionSyntax
        Inherits NewExpressionSyntax

        Friend _initializer as ObjectMemberInitializerSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), newKeyword As InternalSyntax.KeywordSyntax, attributeLists As SyntaxNode, initializer As ObjectMemberInitializerSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AnonymousObjectCreationExpressionSyntax(kind, errors, annotations, newKeyword, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), DirectCast(initializer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ObjectMemberInitializerSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "New" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property NewKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AnonymousObjectCreationExpressionSyntax)._newKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetNewKeywordCore() As SyntaxToken
            Return Me.NewKeyword
        End Function

        Friend Overrides Function WithNewKeywordCore(newKeyword As SyntaxToken) As NewExpressionSyntax
            Return WithNewKeyword(newKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the NewKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNewKeyword(newKeyword as SyntaxToken) As AnonymousObjectCreationExpressionSyntax
            return Update(newKeyword, Me.AttributeLists, Me.Initializer)
        End Function

        ''' <summary>
        ''' A list of all attribute lists on the type. If no attributes were specified, an
        ''' empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRed(_attributeLists, 1)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As NewExpressionSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As AnonymousObjectCreationExpressionSyntax
            return Update(Me.NewKeyword, attributeLists, Me.Initializer)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As AnonymousObjectCreationExpressionSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As NewExpressionSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' The With clause to initialize the new object.
        ''' </summary>
        Public ReadOnly Property Initializer As ObjectMemberInitializerSyntax
            Get
                Return GetRed(_initializer, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializer property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializer(initializer as ObjectMemberInitializerSyntax) As AnonymousObjectCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, initializer)
        End Function

        Public Shadows Function AddInitializerInitializers(ParamArray items As FieldInitializerSyntax()) As AnonymousObjectCreationExpressionSyntax
            Dim _child = If(Me.Initializer IsNot Nothing, Me.Initializer, SyntaxFactory.ObjectMemberInitializer())
            Return Me.WithInitializer(_child.AddInitializers(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._attributeLists
                Case 2
                    Return Me._initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_attributeLists, 1)
                Case 2
                    Return Me.Initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAnonymousObjectCreationExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAnonymousObjectCreationExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="newKeyword">
        ''' The value for the NewKeyword property.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="initializer">
        ''' The value for the Initializer property.
        ''' </param>
        Public Function Update(newKeyword As SyntaxToken, attributeLists As SyntaxList(of AttributeListSyntax), initializer As ObjectMemberInitializerSyntax) As AnonymousObjectCreationExpressionSyntax
            If newKeyword <> Me.NewKeyword OrElse attributeLists <> Me.AttributeLists OrElse initializer IsNot Me.Initializer Then
                Dim newNode = SyntaxFactory.AnonymousObjectCreationExpression(newKeyword, attributeLists, initializer)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an expression that creates a new array.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ArrayCreationExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ArrayCreationExpressionSyntax
        Inherits NewExpressionSyntax

        Friend _type as TypeSyntax
        Friend _arrayBounds as ArgumentListSyntax
        Friend _rankSpecifiers as SyntaxNode
        Friend _initializer as CollectionInitializerSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), newKeyword As InternalSyntax.KeywordSyntax, attributeLists As SyntaxNode, type As TypeSyntax, arrayBounds As ArgumentListSyntax, rankSpecifiers As SyntaxNode, initializer As CollectionInitializerSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArrayCreationExpressionSyntax(kind, errors, annotations, newKeyword, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), if(arrayBounds IsNot Nothing, DirectCast(arrayBounds.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax), Nothing), if(rankSpecifiers IsNot Nothing, rankSpecifiers.Green, Nothing), DirectCast(initializer.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CollectionInitializerSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "New" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property NewKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArrayCreationExpressionSyntax)._newKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetNewKeywordCore() As SyntaxToken
            Return Me.NewKeyword
        End Function

        Friend Overrides Function WithNewKeywordCore(newKeyword As SyntaxToken) As NewExpressionSyntax
            Return WithNewKeyword(newKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the NewKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNewKeyword(newKeyword as SyntaxToken) As ArrayCreationExpressionSyntax
            return Update(newKeyword, Me.AttributeLists, Me.Type, Me.ArrayBounds, Me.RankSpecifiers, Me.Initializer)
        End Function

        ''' <summary>
        ''' A list of all attribute lists on the type. If no attributes were specified, an
        ''' empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRed(_attributeLists, 1)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As NewExpressionSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As ArrayCreationExpressionSyntax
            return Update(Me.NewKeyword, attributeLists, Me.Type, Me.ArrayBounds, Me.RankSpecifiers, Me.Initializer)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As ArrayCreationExpressionSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As NewExpressionSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' The element type of the array being created.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As ArrayCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, type, Me.ArrayBounds, Me.RankSpecifiers, Me.Initializer)
        End Function

        ''' <summary>
        ''' The optional array bounds, such as "(4)" or "(0 to 5, 0 To 6)".
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ArrayBounds As ArgumentListSyntax
            Get
                Return GetRed(_arrayBounds, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArrayBounds property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArrayBounds(arrayBounds as ArgumentListSyntax) As ArrayCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, Me.Type, arrayBounds, Me.RankSpecifiers, Me.Initializer)
        End Function

        Public Shadows Function AddArrayBoundsArguments(ParamArray items As ArgumentSyntax()) As ArrayCreationExpressionSyntax
            Dim _child = If(Me.ArrayBounds IsNot Nothing, Me.ArrayBounds, SyntaxFactory.ArgumentList())
            Return Me.WithArrayBounds(_child.AddArguments(items))
        End Function

        ''' <summary>
        ''' A list of array modifiers such as "()" or "(,)". If no array modifiers were
        ''' present, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property RankSpecifiers As SyntaxList(Of ArrayRankSpecifierSyntax)
            Get
                Dim listNode = GetRed(_rankSpecifiers, 4)
                Return new SyntaxList(Of ArrayRankSpecifierSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the RankSpecifiers property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithRankSpecifiers(rankSpecifiers as SyntaxList(Of ArrayRankSpecifierSyntax)) As ArrayCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, Me.Type, Me.ArrayBounds, rankSpecifiers, Me.Initializer)
        End Function

        Public Shadows Function AddRankSpecifiers(ParamArray items As ArrayRankSpecifierSyntax()) As ArrayCreationExpressionSyntax
            Return Me.WithRankSpecifiers(Me.RankSpecifiers.AddRange(items))
        End Function

        ''' <summary>
        ''' The initializer including the braces.
        ''' </summary>
        Public ReadOnly Property Initializer As CollectionInitializerSyntax
            Get
                Return GetRed(_initializer, 5)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializer property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializer(initializer as CollectionInitializerSyntax) As ArrayCreationExpressionSyntax
            return Update(Me.NewKeyword, Me.AttributeLists, Me.Type, Me.ArrayBounds, Me.RankSpecifiers, initializer)
        End Function

        Public Shadows Function AddInitializerInitializers(ParamArray items As ExpressionSyntax()) As ArrayCreationExpressionSyntax
            Dim _child = If(Me.Initializer IsNot Nothing, Me.Initializer, SyntaxFactory.CollectionInitializer())
            Return Me.WithInitializer(_child.AddInitializers(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._attributeLists
                Case 2
                    Return Me._type
                Case 3
                    Return Me._arrayBounds
                Case 4
                    Return Me._rankSpecifiers
                Case 5
                    Return Me._initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_attributeLists, 1)
                Case 2
                    Return Me.Type
                Case 3
                    Return Me.ArrayBounds
                Case 4
                    Return GetRed(_rankSpecifiers, 4)
                Case 5
                    Return Me.Initializer
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitArrayCreationExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitArrayCreationExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="newKeyword">
        ''' The value for the NewKeyword property.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        ''' <param name="arrayBounds">
        ''' The value for the ArrayBounds property.
        ''' </param>
        ''' <param name="rankSpecifiers">
        ''' The value for the RankSpecifiers property.
        ''' </param>
        ''' <param name="initializer">
        ''' The value for the Initializer property.
        ''' </param>
        Public Function Update(newKeyword As SyntaxToken, attributeLists As SyntaxList(of AttributeListSyntax), type As TypeSyntax, arrayBounds As ArgumentListSyntax, rankSpecifiers As SyntaxList(of ArrayRankSpecifierSyntax), initializer As CollectionInitializerSyntax) As ArrayCreationExpressionSyntax
            If newKeyword <> Me.NewKeyword OrElse attributeLists <> Me.AttributeLists OrElse type IsNot Me.Type OrElse arrayBounds IsNot Me.ArrayBounds OrElse rankSpecifiers <> Me.RankSpecifiers OrElse initializer IsNot Me.Initializer Then
                Dim newNode = SyntaxFactory.ArrayCreationExpression(newKeyword, attributeLists, type, arrayBounds, rankSpecifiers, initializer)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an expression that creates a new array without naming the element
    ''' type.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CollectionInitializer"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CollectionInitializerSyntax
        Inherits ExpressionSyntax

        Friend _initializers as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openBraceToken As InternalSyntax.PunctuationSyntax, initializers As SyntaxNode, closeBraceToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CollectionInitializerSyntax(kind, errors, annotations, openBraceToken, if(initializers IsNot Nothing, initializers.Green, Nothing), closeBraceToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "{" token.
        ''' </summary>
        Public ReadOnly Property OpenBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CollectionInitializerSyntax)._openBraceToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenBraceToken(openBraceToken as SyntaxToken) As CollectionInitializerSyntax
            return Update(openBraceToken, Me.Initializers, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' The list of initializers between the braces.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Initializers As SeparatedSyntaxList(Of ExpressionSyntax)
            Get
                Dim listNode = GetRed(_initializers, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ExpressionSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Initializers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInitializers(initializers as SeparatedSyntaxList(Of ExpressionSyntax)) As CollectionInitializerSyntax
            return Update(Me.OpenBraceToken, initializers, Me.CloseBraceToken)
        End Function

        Public Shadows Function AddInitializers(ParamArray items As ExpressionSyntax()) As CollectionInitializerSyntax
            Return Me.WithInitializers(Me.Initializers.AddRange(items))
        End Function

        ''' <summary>
        ''' The "}" token.
        ''' </summary>
        Public ReadOnly Property CloseBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CollectionInitializerSyntax)._closeBraceToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseBraceToken(closeBraceToken as SyntaxToken) As CollectionInitializerSyntax
            return Update(Me.OpenBraceToken, Me.Initializers, closeBraceToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._initializers
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_initializers, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCollectionInitializer(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCollectionInitializer(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openBraceToken">
        ''' The value for the OpenBraceToken property.
        ''' </param>
        ''' <param name="initializers">
        ''' The value for the Initializers property.
        ''' </param>
        ''' <param name="closeBraceToken">
        ''' The value for the CloseBraceToken property.
        ''' </param>
        Public Function Update(openBraceToken As SyntaxToken, initializers As SeparatedSyntaxList(Of ExpressionSyntax), closeBraceToken As SyntaxToken) As CollectionInitializerSyntax
            If openBraceToken <> Me.OpenBraceToken OrElse initializers <> Me.Initializers OrElse closeBraceToken <> Me.CloseBraceToken Then
                Dim newNode = SyntaxFactory.CollectionInitializer(openBraceToken, initializers, closeBraceToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a CType, DirectCast or TryCast conversion expression. The Kind
    ''' property determines which kind of cast it is.
    ''' </summary>
    Public MustInherit Class CastExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax
        Friend _type as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The "CType", "DirectCast" or "TryCast" keyword.
        ''' </summary>
        Public ReadOnly Property Keyword As SyntaxToken
            Get
                Return Me.GetKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetKeywordCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CastExpressionSyntax)._keyword, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithKeyword(keyword As SyntaxToken) As CastExpressionSyntax
            Return WithKeywordCore(keyword)
        End Function
        Friend MustOverride Function WithKeywordCore(keyword As SyntaxToken) As CastExpressionSyntax

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                Return Me.GetOpenParenTokenCore()
            End Get
        End Property

        Friend Overridable Function GetOpenParenTokenCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CastExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
        End Function

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithOpenParenToken(openParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithOpenParenTokenCore(openParenToken)
        End Function
        Friend MustOverride Function WithOpenParenTokenCore(openParenToken As SyntaxToken) As CastExpressionSyntax

        ''' <summary>
        ''' The expression being cast.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return Me.GetExpressionCore()
            End Get
        End Property

        Friend Overridable Function GetExpressionCore() As ExpressionSyntax
            Return GetRed(_expression, 2)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithExpression(expression As ExpressionSyntax) As CastExpressionSyntax
            Return WithExpressionCore(expression)
        End Function
        Friend MustOverride Function WithExpressionCore(expression As ExpressionSyntax) As CastExpressionSyntax

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public ReadOnly Property CommaToken As SyntaxToken
            Get
                Return Me.GetCommaTokenCore()
            End Get
        End Property

        Friend Overridable Function GetCommaTokenCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CastExpressionSyntax)._commaToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithCommaToken(commaToken As SyntaxToken) As CastExpressionSyntax
            Return WithCommaTokenCore(commaToken)
        End Function
        Friend MustOverride Function WithCommaTokenCore(commaToken As SyntaxToken) As CastExpressionSyntax

        ''' <summary>
        ''' The type the expression is being cast to.
        ''' </summary>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return Me.GetTypeCore()
            End Get
        End Property

        Friend Overridable Function GetTypeCore() As TypeSyntax
            Return GetRed(_type, 4)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Function WithType(type As TypeSyntax) As CastExpressionSyntax
            Return WithTypeCore(type)
        End Function
        Friend MustOverride Function WithTypeCore(type As TypeSyntax) As CastExpressionSyntax

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                Return Me.GetCloseParenTokenCore()
            End Get
        End Property

        Friend Overridable Function GetCloseParenTokenCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CastExpressionSyntax)._closeParenToken, Me.GetChildPosition(5), Me.GetChildIndex(5))
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithCloseParenToken(closeParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithCloseParenTokenCore(closeParenToken)
        End Function
        Friend MustOverride Function WithCloseParenTokenCore(closeParenToken As SyntaxToken) As CastExpressionSyntax

    End Class

    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CTypeExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CTypeExpressionSyntax
        Inherits CastExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax, commaToken As InternalSyntax.PunctuationSyntax, type As TypeSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CTypeExpressionSyntax(kind, errors, annotations, keyword, openParenToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), commaToken, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "CType", "DirectCast" or "TryCast" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CTypeExpressionSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetKeywordCore() As SyntaxToken
            Return Me.Keyword
        End Function

        Friend Overrides Function WithKeywordCore(keyword As SyntaxToken) As CastExpressionSyntax
            Return WithKeyword(keyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As CTypeExpressionSyntax
            return Update(keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public Shadows ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CTypeExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        Friend Overrides Function GetOpenParenTokenCore() As SyntaxToken
            Return Me.OpenParenToken
        End Function

        Friend Overrides Function WithOpenParenTokenCore(openParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithOpenParenToken(openParenToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As CTypeExpressionSyntax
            return Update(Me.Keyword, openParenToken, Me.Expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The expression being cast.
        ''' </summary>
        Public Shadows ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 2)
            End Get
        End Property

        Friend Overrides Function GetExpressionCore() As ExpressionSyntax
            Return Me.Expression
        End Function

        Friend Overrides Function WithExpressionCore(expression As ExpressionSyntax) As CastExpressionSyntax
            Return WithExpression(expression)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As CTypeExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public Shadows ReadOnly Property CommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CTypeExpressionSyntax)._commaToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetCommaTokenCore() As SyntaxToken
            Return Me.CommaToken
        End Function

        Friend Overrides Function WithCommaTokenCore(commaToken As SyntaxToken) As CastExpressionSyntax
            Return WithCommaToken(commaToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaToken(commaToken as SyntaxToken) As CTypeExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, commaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The type the expression is being cast to.
        ''' </summary>
        Public Shadows ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 4)
            End Get
        End Property

        Friend Overrides Function GetTypeCore() As TypeSyntax
            Return Me.Type
        End Function

        Friend Overrides Function WithTypeCore(type As TypeSyntax) As CastExpressionSyntax
            Return WithType(type)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As CTypeExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public Shadows ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CTypeExpressionSyntax)._closeParenToken, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        Friend Overrides Function GetCloseParenTokenCore() As SyntaxToken
            Return Me.CloseParenToken
        End Function

        Friend Overrides Function WithCloseParenTokenCore(closeParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithCloseParenToken(closeParenToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As CTypeExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, Me.Type, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._expression
                Case 4
                    Return Me._type
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Expression
                Case 4
                    Return Me.Type
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCTypeExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCTypeExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="commaToken">
        ''' The value for the CommaToken property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken, openParenToken As SyntaxToken, expression As ExpressionSyntax, commaToken As SyntaxToken, type As TypeSyntax, closeParenToken As SyntaxToken) As CTypeExpressionSyntax
            If keyword <> Me.Keyword OrElse openParenToken <> Me.OpenParenToken OrElse expression IsNot Me.Expression OrElse commaToken <> Me.CommaToken OrElse type IsNot Me.Type OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.CTypeExpression(keyword, openParenToken, expression, commaToken, type, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.DirectCastExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DirectCastExpressionSyntax
        Inherits CastExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax, commaToken As InternalSyntax.PunctuationSyntax, type As TypeSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DirectCastExpressionSyntax(kind, errors, annotations, keyword, openParenToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), commaToken, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "CType", "DirectCast" or "TryCast" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DirectCastExpressionSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetKeywordCore() As SyntaxToken
            Return Me.Keyword
        End Function

        Friend Overrides Function WithKeywordCore(keyword As SyntaxToken) As CastExpressionSyntax
            Return WithKeyword(keyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As DirectCastExpressionSyntax
            return Update(keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public Shadows ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DirectCastExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        Friend Overrides Function GetOpenParenTokenCore() As SyntaxToken
            Return Me.OpenParenToken
        End Function

        Friend Overrides Function WithOpenParenTokenCore(openParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithOpenParenToken(openParenToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As DirectCastExpressionSyntax
            return Update(Me.Keyword, openParenToken, Me.Expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The expression being cast.
        ''' </summary>
        Public Shadows ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 2)
            End Get
        End Property

        Friend Overrides Function GetExpressionCore() As ExpressionSyntax
            Return Me.Expression
        End Function

        Friend Overrides Function WithExpressionCore(expression As ExpressionSyntax) As CastExpressionSyntax
            Return WithExpression(expression)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As DirectCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public Shadows ReadOnly Property CommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DirectCastExpressionSyntax)._commaToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetCommaTokenCore() As SyntaxToken
            Return Me.CommaToken
        End Function

        Friend Overrides Function WithCommaTokenCore(commaToken As SyntaxToken) As CastExpressionSyntax
            Return WithCommaToken(commaToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaToken(commaToken as SyntaxToken) As DirectCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, commaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The type the expression is being cast to.
        ''' </summary>
        Public Shadows ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 4)
            End Get
        End Property

        Friend Overrides Function GetTypeCore() As TypeSyntax
            Return Me.Type
        End Function

        Friend Overrides Function WithTypeCore(type As TypeSyntax) As CastExpressionSyntax
            Return WithType(type)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As DirectCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public Shadows ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DirectCastExpressionSyntax)._closeParenToken, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        Friend Overrides Function GetCloseParenTokenCore() As SyntaxToken
            Return Me.CloseParenToken
        End Function

        Friend Overrides Function WithCloseParenTokenCore(closeParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithCloseParenToken(closeParenToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As DirectCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, Me.Type, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._expression
                Case 4
                    Return Me._type
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Expression
                Case 4
                    Return Me.Type
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDirectCastExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDirectCastExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="commaToken">
        ''' The value for the CommaToken property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken, openParenToken As SyntaxToken, expression As ExpressionSyntax, commaToken As SyntaxToken, type As TypeSyntax, closeParenToken As SyntaxToken) As DirectCastExpressionSyntax
            If keyword <> Me.Keyword OrElse openParenToken <> Me.OpenParenToken OrElse expression IsNot Me.Expression OrElse commaToken <> Me.CommaToken OrElse type IsNot Me.Type OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.DirectCastExpression(keyword, openParenToken, expression, commaToken, type, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TryCastExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TryCastExpressionSyntax
        Inherits CastExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax, commaToken As InternalSyntax.PunctuationSyntax, type As TypeSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryCastExpressionSyntax(kind, errors, annotations, keyword, openParenToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), commaToken, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "CType", "DirectCast" or "TryCast" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryCastExpressionSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetKeywordCore() As SyntaxToken
            Return Me.Keyword
        End Function

        Friend Overrides Function WithKeywordCore(keyword As SyntaxToken) As CastExpressionSyntax
            Return WithKeyword(keyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As TryCastExpressionSyntax
            return Update(keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public Shadows ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryCastExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        Friend Overrides Function GetOpenParenTokenCore() As SyntaxToken
            Return Me.OpenParenToken
        End Function

        Friend Overrides Function WithOpenParenTokenCore(openParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithOpenParenToken(openParenToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As TryCastExpressionSyntax
            return Update(Me.Keyword, openParenToken, Me.Expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The expression being cast.
        ''' </summary>
        Public Shadows ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 2)
            End Get
        End Property

        Friend Overrides Function GetExpressionCore() As ExpressionSyntax
            Return Me.Expression
        End Function

        Friend Overrides Function WithExpressionCore(expression As ExpressionSyntax) As CastExpressionSyntax
            Return WithExpression(expression)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As TryCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, expression, Me.CommaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public Shadows ReadOnly Property CommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryCastExpressionSyntax)._commaToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetCommaTokenCore() As SyntaxToken
            Return Me.CommaToken
        End Function

        Friend Overrides Function WithCommaTokenCore(commaToken As SyntaxToken) As CastExpressionSyntax
            Return WithCommaToken(commaToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaToken(commaToken as SyntaxToken) As TryCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, commaToken, Me.Type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The type the expression is being cast to.
        ''' </summary>
        Public Shadows ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 4)
            End Get
        End Property

        Friend Overrides Function GetTypeCore() As TypeSyntax
            Return Me.Type
        End Function

        Friend Overrides Function WithTypeCore(type As TypeSyntax) As CastExpressionSyntax
            Return WithType(type)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As TryCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, type, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public Shadows ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TryCastExpressionSyntax)._closeParenToken, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        Friend Overrides Function GetCloseParenTokenCore() As SyntaxToken
            Return Me.CloseParenToken
        End Function

        Friend Overrides Function WithCloseParenTokenCore(closeParenToken As SyntaxToken) As CastExpressionSyntax
            Return WithCloseParenToken(closeParenToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As TryCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, Me.CommaToken, Me.Type, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._expression
                Case 4
                    Return Me._type
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Expression
                Case 4
                    Return Me.Type
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTryCastExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTryCastExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="commaToken">
        ''' The value for the CommaToken property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken, openParenToken As SyntaxToken, expression As ExpressionSyntax, commaToken As SyntaxToken, type As TypeSyntax, closeParenToken As SyntaxToken) As TryCastExpressionSyntax
            If keyword <> Me.Keyword OrElse openParenToken <> Me.OpenParenToken OrElse expression IsNot Me.Expression OrElse commaToken <> Me.CommaToken OrElse type IsNot Me.Type OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.TryCastExpression(keyword, openParenToken, expression, commaToken, type, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a cast to a pre-defined type using a pre-defined cast expression,
    ''' such as CInt or CLng.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.PredefinedCastExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class PredefinedCastExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PredefinedCastExpressionSyntax(kind, errors, annotations, keyword, openParenToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The keyword that was used in the cast operation.
        ''' </summary>
        Public ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PredefinedCastExpressionSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As PredefinedCastExpressionSyntax
            return Update(keyword, Me.OpenParenToken, Me.Expression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PredefinedCastExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As PredefinedCastExpressionSyntax
            return Update(Me.Keyword, openParenToken, Me.Expression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The expression being cast.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As PredefinedCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, expression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PredefinedCastExpressionSyntax)._closeParenToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As PredefinedCastExpressionSyntax
            return Update(Me.Keyword, Me.OpenParenToken, Me.Expression, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitPredefinedCastExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitPredefinedCastExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken, openParenToken As SyntaxToken, expression As ExpressionSyntax, closeParenToken As SyntaxToken) As PredefinedCastExpressionSyntax
            If keyword <> Me.Keyword OrElse openParenToken <> Me.OpenParenToken OrElse expression IsNot Me.Expression OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.PredefinedCastExpression(keyword, openParenToken, expression, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a binary operator. The Kind property classifies the operators into
    ''' similar kind of operators (arithmetic, relational, logical or string); the
    ''' exact operation being performed is determined by the Operator property.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AddExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.SubtractExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.MultiplyExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DivideExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.IntegerDivideExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExponentiateExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.LeftShiftExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.RightShiftExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ConcatenateExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ModuloExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.EqualsExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.NotEqualsExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.LessThanExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.LessThanOrEqualExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.GreaterThanOrEqualExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.GreaterThanExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.IsExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.IsNotExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.LikeExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.OrExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ExclusiveOrExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.AndExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.OrElseExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.AndAlsoExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class BinaryExpressionSyntax
        Inherits ExpressionSyntax

        Friend _left as ExpressionSyntax
        Friend _right as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), left As ExpressionSyntax, operatorToken As InternalSyntax.SyntaxToken, right As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BinaryExpressionSyntax(kind, errors, annotations, DirectCast(left.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), operatorToken, DirectCast(right.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The left operand.
        ''' </summary>
        Public ReadOnly Property Left As ExpressionSyntax
            Get
                Return GetRedAtZero(_left)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Left property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLeft(left as ExpressionSyntax) As BinaryExpressionSyntax
            return Update(Me.Kind, left, Me.OperatorToken, Me.Right)
        End Function

        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BinaryExpressionSyntax)._operatorToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As BinaryExpressionSyntax
            return Update(Me.Kind, Me.Left, operatorToken, Me.Right)
        End Function

        ''' <summary>
        ''' The right operand.
        ''' </summary>
        Public ReadOnly Property Right As ExpressionSyntax
            Get
                Return GetRed(_right, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Right property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithRight(right as ExpressionSyntax) As BinaryExpressionSyntax
            return Update(Me.Kind, Me.Left, Me.OperatorToken, right)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._left
                Case 2
                    Return Me._right
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Left
                Case 2
                    Return Me.Right
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitBinaryExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitBinaryExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="left">
        ''' The value for the Left property.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        ''' <param name="right">
        ''' The value for the Right property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, left As ExpressionSyntax, operatorToken As SyntaxToken, right As ExpressionSyntax) As BinaryExpressionSyntax
            If kind <> Me.Kind OrElse left IsNot Me.Left OrElse operatorToken <> Me.OperatorToken OrElse right IsNot Me.Right Then
                Dim newNode = SyntaxFactory.BinaryExpression(kind, left, operatorToken, right)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Describes a unary operator: Plus, Negate, Not or AddressOf.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.UnaryPlusExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.UnaryMinusExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.NotExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.AddressOfExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class UnaryExpressionSyntax
        Inherits ExpressionSyntax

        Friend _operand as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), operatorToken As InternalSyntax.SyntaxToken, operand As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.UnaryExpressionSyntax(kind, errors, annotations, operatorToken, DirectCast(operand.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The token that is the operator.
        ''' </summary>
        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.UnaryExpressionSyntax)._operatorToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As UnaryExpressionSyntax
            return Update(Me.Kind, operatorToken, Me.Operand)
        End Function

        ''' <summary>
        ''' The expression being operated on.
        ''' </summary>
        Public ReadOnly Property Operand As ExpressionSyntax
            Get
                Return GetRed(_operand, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Operand property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperand(operand as ExpressionSyntax) As UnaryExpressionSyntax
            return Update(Me.Kind, Me.OperatorToken, operand)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._operand
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Operand
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitUnaryExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitUnaryExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        ''' <param name="operand">
        ''' The value for the Operand property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, operatorToken As SyntaxToken, operand As ExpressionSyntax) As UnaryExpressionSyntax
            If kind <> Me.Kind OrElse operatorToken <> Me.OperatorToken OrElse operand IsNot Me.Operand Then
                Dim newNode = SyntaxFactory.UnaryExpression(kind, operatorToken, operand)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a conditional expression, If(condition, true-expr, false-expr) or
    ''' If(expr, nothing-expr).
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.BinaryConditionalExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class BinaryConditionalExpressionSyntax
        Inherits ExpressionSyntax

        Friend _firstExpression as ExpressionSyntax
        Friend _secondExpression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), ifKeyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, firstExpression As ExpressionSyntax, commaToken As InternalSyntax.PunctuationSyntax, secondExpression As ExpressionSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BinaryConditionalExpressionSyntax(kind, errors, annotations, ifKeyword, openParenToken, DirectCast(firstExpression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), commaToken, DirectCast(secondExpression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "If" keyword
        ''' </summary>
        Public ReadOnly Property IfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BinaryConditionalExpressionSyntax)._ifKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIfKeyword(ifKeyword as SyntaxToken) As BinaryConditionalExpressionSyntax
            return Update(ifKeyword, Me.OpenParenToken, Me.FirstExpression, Me.CommaToken, Me.SecondExpression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BinaryConditionalExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As BinaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, openParenToken, Me.FirstExpression, Me.CommaToken, Me.SecondExpression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The first expression inside the parentheses.
        ''' </summary>
        Public ReadOnly Property FirstExpression As ExpressionSyntax
            Get
                Return GetRed(_firstExpression, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FirstExpression property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithFirstExpression(firstExpression as ExpressionSyntax) As BinaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, firstExpression, Me.CommaToken, Me.SecondExpression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public ReadOnly Property CommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BinaryConditionalExpressionSyntax)._commaToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaToken(commaToken as SyntaxToken) As BinaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.FirstExpression, commaToken, Me.SecondExpression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The second expression inside the parentheses.
        ''' </summary>
        Public ReadOnly Property SecondExpression As ExpressionSyntax
            Get
                Return GetRed(_secondExpression, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SecondExpression property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSecondExpression(secondExpression as ExpressionSyntax) As BinaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.FirstExpression, Me.CommaToken, secondExpression, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BinaryConditionalExpressionSyntax)._closeParenToken, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As BinaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.FirstExpression, Me.CommaToken, Me.SecondExpression, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._firstExpression
                Case 4
                    Return Me._secondExpression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.FirstExpression
                Case 4
                    Return Me.SecondExpression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitBinaryConditionalExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitBinaryConditionalExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="ifKeyword">
        ''' The value for the IfKeyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="firstExpression">
        ''' The value for the FirstExpression property.
        ''' </param>
        ''' <param name="commaToken">
        ''' The value for the CommaToken property.
        ''' </param>
        ''' <param name="secondExpression">
        ''' The value for the SecondExpression property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(ifKeyword As SyntaxToken, openParenToken As SyntaxToken, firstExpression As ExpressionSyntax, commaToken As SyntaxToken, secondExpression As ExpressionSyntax, closeParenToken As SyntaxToken) As BinaryConditionalExpressionSyntax
            If ifKeyword <> Me.IfKeyword OrElse openParenToken <> Me.OpenParenToken OrElse firstExpression IsNot Me.FirstExpression OrElse commaToken <> Me.CommaToken OrElse secondExpression IsNot Me.SecondExpression OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.BinaryConditionalExpression(ifKeyword, openParenToken, firstExpression, commaToken, secondExpression, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a conditional expression, If(condition, true-expr, false-expr) or
    ''' If(expr, nothing-expr).
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TernaryConditionalExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TernaryConditionalExpressionSyntax
        Inherits ExpressionSyntax

        Friend _condition as ExpressionSyntax
        Friend _whenTrue as ExpressionSyntax
        Friend _whenFalse as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), ifKeyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, condition As ExpressionSyntax, firstCommaToken As InternalSyntax.PunctuationSyntax, whenTrue As ExpressionSyntax, secondCommaToken As InternalSyntax.PunctuationSyntax, whenFalse As ExpressionSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TernaryConditionalExpressionSyntax(kind, errors, annotations, ifKeyword, openParenToken, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), firstCommaToken, DirectCast(whenTrue.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), secondCommaToken, DirectCast(whenFalse.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "If" keyword
        ''' </summary>
        Public ReadOnly Property IfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TernaryConditionalExpressionSyntax)._ifKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIfKeyword(ifKeyword as SyntaxToken) As TernaryConditionalExpressionSyntax
            return Update(ifKeyword, Me.OpenParenToken, Me.Condition, Me.FirstCommaToken, Me.WhenTrue, Me.SecondCommaToken, Me.WhenFalse, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TernaryConditionalExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As TernaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, openParenToken, Me.Condition, Me.FirstCommaToken, Me.WhenTrue, Me.SecondCommaToken, Me.WhenFalse, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The first expression inside the parentheses.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As TernaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, condition, Me.FirstCommaToken, Me.WhenTrue, Me.SecondCommaToken, Me.WhenFalse, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public ReadOnly Property FirstCommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TernaryConditionalExpressionSyntax)._firstCommaToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FirstCommaToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithFirstCommaToken(firstCommaToken as SyntaxToken) As TernaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.Condition, firstCommaToken, Me.WhenTrue, Me.SecondCommaToken, Me.WhenFalse, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The second expression inside the parentheses.
        ''' </summary>
        Public ReadOnly Property WhenTrue As ExpressionSyntax
            Get
                Return GetRed(_whenTrue, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhenTrue property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhenTrue(whenTrue as ExpressionSyntax) As TernaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.Condition, Me.FirstCommaToken, whenTrue, Me.SecondCommaToken, Me.WhenFalse, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "," token.
        ''' </summary>
        Public ReadOnly Property SecondCommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TernaryConditionalExpressionSyntax)._secondCommaToken, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SecondCommaToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSecondCommaToken(secondCommaToken as SyntaxToken) As TernaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.Condition, Me.FirstCommaToken, Me.WhenTrue, secondCommaToken, Me.WhenFalse, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The second expression inside the parentheses.
        ''' </summary>
        Public ReadOnly Property WhenFalse As ExpressionSyntax
            Get
                Return GetRed(_whenFalse, 6)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhenFalse property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhenFalse(whenFalse as ExpressionSyntax) As TernaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.Condition, Me.FirstCommaToken, Me.WhenTrue, Me.SecondCommaToken, whenFalse, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TernaryConditionalExpressionSyntax)._closeParenToken, Me.GetChildPosition(7), Me.GetChildIndex(7))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As TernaryConditionalExpressionSyntax
            return Update(Me.IfKeyword, Me.OpenParenToken, Me.Condition, Me.FirstCommaToken, Me.WhenTrue, Me.SecondCommaToken, Me.WhenFalse, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._condition
                Case 4
                    Return Me._whenTrue
                Case 6
                    Return Me._whenFalse
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Condition
                Case 4
                    Return Me.WhenTrue
                Case 6
                    Return Me.WhenFalse
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTernaryConditionalExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTernaryConditionalExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="ifKeyword">
        ''' The value for the IfKeyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        ''' <param name="firstCommaToken">
        ''' The value for the FirstCommaToken property.
        ''' </param>
        ''' <param name="whenTrue">
        ''' The value for the WhenTrue property.
        ''' </param>
        ''' <param name="secondCommaToken">
        ''' The value for the SecondCommaToken property.
        ''' </param>
        ''' <param name="whenFalse">
        ''' The value for the WhenFalse property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(ifKeyword As SyntaxToken, openParenToken As SyntaxToken, condition As ExpressionSyntax, firstCommaToken As SyntaxToken, whenTrue As ExpressionSyntax, secondCommaToken As SyntaxToken, whenFalse As ExpressionSyntax, closeParenToken As SyntaxToken) As TernaryConditionalExpressionSyntax
            If ifKeyword <> Me.IfKeyword OrElse openParenToken <> Me.OpenParenToken OrElse condition IsNot Me.Condition OrElse firstCommaToken <> Me.FirstCommaToken OrElse whenTrue IsNot Me.WhenTrue OrElse secondCommaToken <> Me.SecondCommaToken OrElse whenFalse IsNot Me.WhenFalse OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.TernaryConditionalExpression(ifKeyword, openParenToken, condition, firstCommaToken, whenTrue, secondCommaToken, whenFalse, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a lambda expression, either single line or multi-line.
    ''' </summary>
    Public MustInherit Class LambdaExpressionSyntax
        Inherits ExpressionSyntax

        Friend _subOrFunctionHeader as LambdaHeaderSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The header part of the lambda that includes the "Sub" or "Function" keyword,
        ''' the argument list and return type.
        ''' </summary>
        Public ReadOnly Property SubOrFunctionHeader As LambdaHeaderSyntax
            Get
                Return Me.GetSubOrFunctionHeaderCore()
            End Get
        End Property

        Friend Overridable Function GetSubOrFunctionHeaderCore() As LambdaHeaderSyntax
            Return GetRedAtZero(_subOrFunctionHeader)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionHeader property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithSubOrFunctionHeader(subOrFunctionHeader As LambdaHeaderSyntax) As LambdaExpressionSyntax
            Return WithSubOrFunctionHeaderCore(subOrFunctionHeader)
        End Function
        Friend MustOverride Function WithSubOrFunctionHeaderCore(subOrFunctionHeader As LambdaHeaderSyntax) As LambdaExpressionSyntax

    End Class

    ''' <summary>
    ''' Represents a single line lambda expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SingleLineFunctionLambdaExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.SingleLineSubLambdaExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SingleLineLambdaExpressionSyntax
        Inherits LambdaExpressionSyntax

        Friend _body as VisualBasicSyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), subOrFunctionHeader As LambdaHeaderSyntax, body As VisualBasicSyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SingleLineLambdaExpressionSyntax(kind, errors, annotations, DirectCast(subOrFunctionHeader.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LambdaHeaderSyntax), DirectCast(body.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VisualBasicSyntaxNode)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The header part of the lambda that includes the "Sub" or "Function" keyword,
        ''' the argument list and return type.
        ''' </summary>
        Public Shadows ReadOnly Property SubOrFunctionHeader As LambdaHeaderSyntax
            Get
                Return GetRedAtZero(_subOrFunctionHeader)
            End Get
        End Property

        Friend Overrides Function GetSubOrFunctionHeaderCore() As LambdaHeaderSyntax
            Return Me.SubOrFunctionHeader
        End Function

        Friend Overrides Function WithSubOrFunctionHeaderCore(subOrFunctionHeader As LambdaHeaderSyntax) As LambdaExpressionSyntax
            Return WithSubOrFunctionHeader(subOrFunctionHeader)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionHeader property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubOrFunctionHeader(subOrFunctionHeader as LambdaHeaderSyntax) As SingleLineLambdaExpressionSyntax
            return Update(Me.Kind, subOrFunctionHeader, Me.Body)
        End Function

        ''' <summary>
        ''' The body of the lambda. Depending on the kind of lambda, this is either a
        ''' Statement (single-line Sub lambda) or Expression (single-line Function).
        ''' </summary>
        Public ReadOnly Property Body As VisualBasicSyntaxNode
            Get
                Return GetRed(_body, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Body property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithBody(body as VisualBasicSyntaxNode) As SingleLineLambdaExpressionSyntax
            return Update(Me.Kind, Me.SubOrFunctionHeader, body)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._subOrFunctionHeader
                Case 1
                    Return Me._body
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.SubOrFunctionHeader
                Case 1
                    Return Me.Body
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSingleLineLambdaExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSingleLineLambdaExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="subOrFunctionHeader">
        ''' The value for the SubOrFunctionHeader property.
        ''' </param>
        ''' <param name="body">
        ''' The value for the Body property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, subOrFunctionHeader As LambdaHeaderSyntax, body As VisualBasicSyntaxNode) As SingleLineLambdaExpressionSyntax
            If kind <> Me.Kind OrElse subOrFunctionHeader IsNot Me.SubOrFunctionHeader OrElse body IsNot Me.Body Then
                Dim newNode = SyntaxFactory.SingleLineLambdaExpression(kind, subOrFunctionHeader, body)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a multi-line lambda expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.MultiLineFunctionLambdaExpression"/></description></item>
    ''' <item><description><see cref="SyntaxKind.MultiLineSubLambdaExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class MultiLineLambdaExpressionSyntax
        Inherits LambdaExpressionSyntax

        Friend _statements as SyntaxNode
        Friend _endSubOrFunctionStatement as EndBlockStatementSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), subOrFunctionHeader As LambdaHeaderSyntax, statements As SyntaxNode, endSubOrFunctionStatement As EndBlockStatementSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.MultiLineLambdaExpressionSyntax(kind, errors, annotations, DirectCast(subOrFunctionHeader.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LambdaHeaderSyntax), if(statements IsNot Nothing, statements.Green, Nothing), DirectCast(endSubOrFunctionStatement.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndBlockStatementSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The header part of the lambda that includes the "Sub" or "Function" keyword,
        ''' the argument list and return type.
        ''' </summary>
        Public Shadows ReadOnly Property SubOrFunctionHeader As LambdaHeaderSyntax
            Get
                Return GetRedAtZero(_subOrFunctionHeader)
            End Get
        End Property

        Friend Overrides Function GetSubOrFunctionHeaderCore() As LambdaHeaderSyntax
            Return Me.SubOrFunctionHeader
        End Function

        Friend Overrides Function WithSubOrFunctionHeaderCore(subOrFunctionHeader As LambdaHeaderSyntax) As LambdaExpressionSyntax
            Return WithSubOrFunctionHeader(subOrFunctionHeader)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionHeader property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubOrFunctionHeader(subOrFunctionHeader as LambdaHeaderSyntax) As MultiLineLambdaExpressionSyntax
            return Update(Me.Kind, subOrFunctionHeader, Me.Statements, Me.EndSubOrFunctionStatement)
        End Function

        ''' <summary>
        ''' The body of the lambda. Depending on the kind of lambda, this is either a
        ''' StatementBody (multi-line lambda), Statement (single-line Sub lambda) or
        ''' Expression (single-line Function). This might be an empty list.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Statements As SyntaxList(Of StatementSyntax)
            Get
                Dim listNode = GetRed(_statements, 1)
                Return new SyntaxList(Of StatementSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Statements property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStatements(statements as SyntaxList(Of StatementSyntax)) As MultiLineLambdaExpressionSyntax
            return Update(Me.Kind, Me.SubOrFunctionHeader, statements, Me.EndSubOrFunctionStatement)
        End Function

        Public Shadows Function AddStatements(ParamArray items As StatementSyntax()) As MultiLineLambdaExpressionSyntax
            Return Me.WithStatements(Me.Statements.AddRange(items))
        End Function

        ''' <summary>
        ''' Returns the "End Sub" or "End Function" statement if this is a multi-line
        ''' lambda.
        ''' </summary>
        Public ReadOnly Property EndSubOrFunctionStatement As EndBlockStatementSyntax
            Get
                Return GetRed(_endSubOrFunctionStatement, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndSubOrFunctionStatement property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithEndSubOrFunctionStatement(endSubOrFunctionStatement as EndBlockStatementSyntax) As MultiLineLambdaExpressionSyntax
            return Update(Me.Kind, Me.SubOrFunctionHeader, Me.Statements, endSubOrFunctionStatement)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._subOrFunctionHeader
                Case 1
                    Return Me._statements
                Case 2
                    Return Me._endSubOrFunctionStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.SubOrFunctionHeader
                Case 1
                    Return GetRed(_statements, 1)
                Case 2
                    Return Me.EndSubOrFunctionStatement
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitMultiLineLambdaExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitMultiLineLambdaExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="subOrFunctionHeader">
        ''' The value for the SubOrFunctionHeader property.
        ''' </param>
        ''' <param name="statements">
        ''' The value for the Statements property.
        ''' </param>
        ''' <param name="endSubOrFunctionStatement">
        ''' The value for the EndSubOrFunctionStatement property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, subOrFunctionHeader As LambdaHeaderSyntax, statements As SyntaxList(of StatementSyntax), endSubOrFunctionStatement As EndBlockStatementSyntax) As MultiLineLambdaExpressionSyntax
            If kind <> Me.Kind OrElse subOrFunctionHeader IsNot Me.SubOrFunctionHeader OrElse statements <> Me.Statements OrElse endSubOrFunctionStatement IsNot Me.EndSubOrFunctionStatement Then
                Dim newNode = SyntaxFactory.MultiLineLambdaExpression(kind, subOrFunctionHeader, statements, endSubOrFunctionStatement)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the header part of a lambda expression
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SubLambdaHeader"/></description></item>
    ''' <item><description><see cref="SyntaxKind.FunctionLambdaHeader"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class LambdaHeaderSyntax
        Inherits MethodBaseSyntax

        Friend _asClause as SimpleAsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), attributeLists As SyntaxNode, modifiers As GreenNode, subOrFunctionKeyword As InternalSyntax.KeywordSyntax, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LambdaHeaderSyntax(kind, errors, annotations, if(attributeLists IsNot Nothing, attributeLists.Green, Nothing), modifiers, subOrFunctionKeyword, if(parameterList IsNot Nothing, DirectCast(parameterList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ParameterListSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all attribute lists on this declaration. If no attributes were
        ''' specified, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AttributeLists As SyntaxList(Of AttributeListSyntax)
            Get
                Dim listNode = GetRedAtZero(_attributeLists)
                Return new SyntaxList(Of AttributeListSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAttributeListsCore() As SyntaxList(Of AttributeListSyntax)
            Return Me.AttributeLists
        End Function

        Friend Overrides Function WithAttributeListsCore(attributeLists As SyntaxList(Of AttributeListSyntax)) As MethodBaseSyntax
            Return WithAttributeLists(attributeLists)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AttributeLists property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAttributeLists(attributeLists as SyntaxList(Of AttributeListSyntax)) As LambdaHeaderSyntax
            return Update(Me.Kind, attributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddAttributeLists(ParamArray items As AttributeListSyntax()) As LambdaHeaderSyntax
            Return Me.WithAttributeLists(Me.AttributeLists.AddRange(items))
        End Function

        Friend Overrides Function AddAttributeListsCore(ParamArray items As AttributeListSyntax()) As MethodBaseSyntax
            Return AddAttributeLists(items)
        End Function

        ''' <summary>
        ''' A list of all the modifier tokens that were present on this declaration. If no
        ''' modifiers were specified, an empty list is returned. A bitfield version of all
        ''' the modifiers ORed together, which is in many cases easier to use, can be
        ''' obtained with the Modifiers property.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property Modifiers As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LambdaHeaderSyntax)._modifiers
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function GetModifiersCore() As SyntaxTokenList
            Return Me.Modifiers
        End Function

        Friend Overrides Function WithModifiersCore(modifiers As SyntaxTokenList) As MethodBaseSyntax
            Return WithModifiers(modifiers)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Modifiers property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifiers(modifiers as SyntaxTokenList) As LambdaHeaderSyntax
            return Update(Me.Kind, Me.AttributeLists, modifiers, Me.SubOrFunctionKeyword, Me.ParameterList, Me.AsClause)
        End Function

        Public Shadows Function AddModifiers(ParamArray items As SyntaxToken()) As LambdaHeaderSyntax
            Return Me.WithModifiers(Me.Modifiers.AddRange(items))
        End Function

        Friend Overrides Function AddModifiersCore(ParamArray items As SyntaxToken()) As MethodBaseSyntax
            Return AddModifiers(items)
        End Function

        ''' <summary>
        ''' The "Sub" or "Function" keyword that introduces this lambda expression.
        ''' </summary>
        Public ReadOnly Property SubOrFunctionKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LambdaHeaderSyntax)._subOrFunctionKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SubOrFunctionKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSubOrFunctionKeyword(subOrFunctionKeyword as SyntaxToken) As LambdaHeaderSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, subOrFunctionKeyword, Me.ParameterList, Me.AsClause)
        End Function

        ''' <summary>
        ''' The method's parameter list including the parentheses. If no parameter list was
        ''' present, Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property ParameterList As ParameterListSyntax
            Get
                Return GetRed(_parameterList, 3)
            End Get
        End Property

        Friend Overrides Function GetParameterListCore() As ParameterListSyntax
            Return Me.ParameterList
        End Function

        Friend Overrides Function WithParameterListCore(parameterList As ParameterListSyntax) As MethodBaseSyntax
            Return WithParameterList(parameterList)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the ParameterList property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithParameterList(parameterList as ParameterListSyntax) As LambdaHeaderSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, parameterList, Me.AsClause)
        End Function

        Public Shadows Function AddParameterListParameters(ParamArray items As ParameterSyntax()) As LambdaHeaderSyntax
            Dim _child = If(Me.ParameterList IsNot Nothing, Me.ParameterList, SyntaxFactory.ParameterList())
            Return Me.WithParameterList(_child.AddParameters(items))
        End Function

        Friend Overrides Function AddParameterListParametersCore(ParamArray items As ParameterSyntax()) As MethodBaseSyntax
            Return AddParameterListParameters(items)
        End Function

        ''' <summary>
        ''' The "As" clause that describes the return type. If no As clause was present,
        ''' Nothing is returned.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As LambdaHeaderSyntax
            return Update(Me.Kind, Me.AttributeLists, Me.Modifiers, Me.SubOrFunctionKeyword, Me.ParameterList, asClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._attributeLists
                Case 3
                    Return Me._parameterList
                Case 4
                    Return Me._asClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return GetRedAtZero(_attributeLists)
                Case 3
                    Return Me.ParameterList
                Case 4
                    Return Me.AsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitLambdaHeader(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitLambdaHeader(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="attributeLists">
        ''' The value for the AttributeLists property.
        ''' </param>
        ''' <param name="modifiers">
        ''' The value for the Modifiers property.
        ''' </param>
        ''' <param name="subOrFunctionKeyword">
        ''' The value for the SubOrFunctionKeyword property.
        ''' </param>
        ''' <param name="parameterList">
        ''' The value for the ParameterList property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, attributeLists As SyntaxList(of AttributeListSyntax), modifiers As SyntaxTokenList, subOrFunctionKeyword As SyntaxToken, parameterList As ParameterListSyntax, asClause As SimpleAsClauseSyntax) As LambdaHeaderSyntax
            If kind <> Me.Kind OrElse attributeLists <> Me.AttributeLists OrElse modifiers <> Me.Modifiers OrElse subOrFunctionKeyword <> Me.SubOrFunctionKeyword OrElse parameterList IsNot Me.ParameterList OrElse asClause IsNot Me.AsClause Then
                Dim newNode = SyntaxFactory.LambdaHeader(kind, attributeLists, modifiers, subOrFunctionKeyword, parameterList, asClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a parenthesized argument list.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ArgumentList"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ArgumentListSyntax
        Inherits VisualBasicSyntaxNode

        Friend _arguments as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, arguments As SyntaxNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax(kind, errors, annotations, openParenToken, if(arguments IsNot Nothing, arguments.Green, Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As ArgumentListSyntax
            return Update(openParenToken, Me.Arguments, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The list of arguments. This may be empty. Omitted argument are represented by
        ''' an OmittedArgumentSyntax node.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Arguments As SeparatedSyntaxList(Of ArgumentSyntax)
            Get
                Dim listNode = GetRed(_arguments, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ArgumentSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Arguments property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArguments(arguments as SeparatedSyntaxList(Of ArgumentSyntax)) As ArgumentListSyntax
            return Update(Me.OpenParenToken, arguments, Me.CloseParenToken)
        End Function

        Public Shadows Function AddArguments(ParamArray items As ArgumentSyntax()) As ArgumentListSyntax
            Return Me.WithArguments(Me.Arguments.AddRange(items))
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArgumentListSyntax)._closeParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As ArgumentListSyntax
            return Update(Me.OpenParenToken, Me.Arguments, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._arguments
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_arguments, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitArgumentList(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitArgumentList(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="arguments">
        ''' The value for the Arguments property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, arguments As SeparatedSyntaxList(Of ArgumentSyntax), closeParenToken As SyntaxToken) As ArgumentListSyntax
            If openParenToken <> Me.OpenParenToken OrElse arguments <> Me.Arguments OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.ArgumentList(openParenToken, arguments, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Base class for the possible kinds of arguments that can appear in an argument
    ''' list.
    ''' </summary>
    Public MustInherit Class ArgumentSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents an omitted argument in an argument list. An omitted argument is not
    ''' considered a syntax error but a valid case when no argument is required.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.OmittedArgument"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OmittedArgumentSyntax
        Inherits ArgumentSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), empty As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OmittedArgumentSyntax(kind, errors, annotations, empty), Nothing, 0)
        End Sub

        ''' <summary>
        ''' An empty token because all non terminals must have a token.
        ''' </summary>
        Public ReadOnly Property Empty As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OmittedArgumentSyntax)._empty, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Empty property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithEmpty(empty as SyntaxToken) As OmittedArgumentSyntax
            return Update(empty)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOmittedArgument(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOmittedArgument(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="empty">
        ''' The value for the Empty property.
        ''' </param>
        Public Function Update(empty As SyntaxToken) As OmittedArgumentSyntax
            If empty <> Me.Empty Then
                Dim newNode = SyntaxFactory.OmittedArgument(empty)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an argument that is just an optional argument name and an
    ''' expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleArgument"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SimpleArgumentSyntax
        Inherits ArgumentSyntax

        Friend _nameColonEquals as NameColonEqualsSyntax
        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), nameColonEquals As NameColonEqualsSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleArgumentSyntax(kind, errors, annotations, if(nameColonEquals IsNot Nothing, DirectCast(nameColonEquals.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameColonEqualsSyntax), Nothing), DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The optional name and ":=" prefix of a named argument.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property NameColonEquals As NameColonEqualsSyntax
            Get
                Return GetRedAtZero(_nameColonEquals)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NameColonEquals property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithNameColonEquals(nameColonEquals as NameColonEqualsSyntax) As SimpleArgumentSyntax
            return Update(nameColonEquals, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression that is the argument.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As SimpleArgumentSyntax
            return Update(Me.NameColonEquals, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._nameColonEquals
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.NameColonEquals
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSimpleArgument(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSimpleArgument(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="nameColonEquals">
        ''' The value for the NameColonEquals property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(nameColonEquals As NameColonEqualsSyntax, expression As ExpressionSyntax) As SimpleArgumentSyntax
            If nameColonEquals IsNot Me.NameColonEquals OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.SimpleArgument(nameColonEquals, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an identifier name followed by a ":=" token in a named argument.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NameColonEquals"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NameColonEqualsSyntax
        Inherits VisualBasicSyntaxNode

        Friend _name as IdentifierNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As IdentifierNameSyntax, colonEqualsToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameColonEqualsSyntax(kind, errors, annotations, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax), colonEqualsToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The name used to identify the named argument.
        ''' </summary>
        Public ReadOnly Property Name As IdentifierNameSyntax
            Get
                Return GetRedAtZero(_name)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as IdentifierNameSyntax) As NameColonEqualsSyntax
            return Update(name, Me.ColonEqualsToken)
        End Function

        ''' <summary>
        ''' The ":=" token.
        ''' </summary>
        Public ReadOnly Property ColonEqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameColonEqualsSyntax)._colonEqualsToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ColonEqualsToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithColonEqualsToken(colonEqualsToken as SyntaxToken) As NameColonEqualsSyntax
            return Update(Me.Name, colonEqualsToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNameColonEquals(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNameColonEquals(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="colonEqualsToken">
        ''' The value for the ColonEqualsToken property.
        ''' </param>
        Public Function Update(name As IdentifierNameSyntax, colonEqualsToken As SyntaxToken) As NameColonEqualsSyntax
            If name IsNot Me.Name OrElse colonEqualsToken <> Me.ColonEqualsToken Then
                Dim newNode = SyntaxFactory.NameColonEquals(name, colonEqualsToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a range argument, such as "0 to 5", used in array bounds. The
    ''' "Value" property represents the upper bound of the range.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.RangeArgument"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class RangeArgumentSyntax
        Inherits ArgumentSyntax

        Friend _lowerBound as ExpressionSyntax
        Friend _upperBound as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lowerBound As ExpressionSyntax, toKeyword As InternalSyntax.KeywordSyntax, upperBound As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RangeArgumentSyntax(kind, errors, annotations, DirectCast(lowerBound.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), toKeyword, DirectCast(upperBound.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The lower bound of the range. This is typically the integer constant zero.
        ''' </summary>
        Public ReadOnly Property LowerBound As ExpressionSyntax
            Get
                Return GetRedAtZero(_lowerBound)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LowerBound property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLowerBound(lowerBound as ExpressionSyntax) As RangeArgumentSyntax
            return Update(lowerBound, Me.ToKeyword, Me.UpperBound)
        End Function

        ''' <summary>
        ''' The "To" keyword.
        ''' </summary>
        Public ReadOnly Property ToKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RangeArgumentSyntax)._toKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ToKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithToKeyword(toKeyword as SyntaxToken) As RangeArgumentSyntax
            return Update(Me.LowerBound, toKeyword, Me.UpperBound)
        End Function

        ''' <summary>
        ''' The upper bound of the range.
        ''' </summary>
        Public ReadOnly Property UpperBound As ExpressionSyntax
            Get
                Return GetRed(_upperBound, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the UpperBound property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithUpperBound(upperBound as ExpressionSyntax) As RangeArgumentSyntax
            return Update(Me.LowerBound, Me.ToKeyword, upperBound)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._lowerBound
                Case 2
                    Return Me._upperBound
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.LowerBound
                Case 2
                    Return Me.UpperBound
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitRangeArgument(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitRangeArgument(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lowerBound">
        ''' The value for the LowerBound property.
        ''' </param>
        ''' <param name="toKeyword">
        ''' The value for the ToKeyword property.
        ''' </param>
        ''' <param name="upperBound">
        ''' The value for the UpperBound property.
        ''' </param>
        Public Function Update(lowerBound As ExpressionSyntax, toKeyword As SyntaxToken, upperBound As ExpressionSyntax) As RangeArgumentSyntax
            If lowerBound IsNot Me.LowerBound OrElse toKeyword <> Me.ToKeyword OrElse upperBound IsNot Me.UpperBound Then
                Dim newNode = SyntaxFactory.RangeArgument(lowerBound, toKeyword, upperBound)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' This class represents a query expression. A query expression is composed of one
    ''' or more query operators in a row. The first query operator must be a From or
    ''' Aggregate.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.QueryExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class QueryExpressionSyntax
        Inherits ExpressionSyntax

        Friend _clauses as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), clauses As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.QueryExpressionSyntax(kind, errors, annotations, if(clauses IsNot Nothing, clauses.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all the query operators in this query expression. This list always
        ''' contains at least one operator.
        ''' </summary>
        Public ReadOnly Property Clauses As SyntaxList(Of QueryClauseSyntax)
            Get
                Dim listNode = GetRedAtZero(_clauses)
                Return new SyntaxList(Of QueryClauseSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Clauses property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithClauses(clauses as SyntaxList(Of QueryClauseSyntax)) As QueryExpressionSyntax
            return Update(clauses)
        End Function

        Public Shadows Function AddClauses(ParamArray items As QueryClauseSyntax()) As QueryExpressionSyntax
            Return Me.WithClauses(Me.Clauses.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me._clauses
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return GetRedAtZero(_clauses)
            Else
                Return Nothing
            End If
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitQueryExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitQueryExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="clauses">
        ''' The value for the Clauses property.
        ''' </param>
        Public Function Update(clauses As SyntaxList(of QueryClauseSyntax)) As QueryExpressionSyntax
            If clauses <> Me.Clauses Then
                Dim newNode = SyntaxFactory.QueryExpression(clauses)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' This is a base class for all query operators.
    ''' </summary>
    Public MustInherit Class QueryClauseSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Describes a single variable of the form "x [As Type] In expression" for use in
    ''' query expressions.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CollectionRangeVariable"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CollectionRangeVariableSyntax
        Inherits VisualBasicSyntaxNode

        Friend _identifier as ModifiedIdentifierSyntax
        Friend _asClause as SimpleAsClauseSyntax
        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As ModifiedIdentifierSyntax, asClause As SimpleAsClauseSyntax, inKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CollectionRangeVariableSyntax(kind, errors, annotations, DirectCast(identifier.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModifiedIdentifierSyntax), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing), inKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The name of the range variable being defined.
        ''' </summary>
        Public ReadOnly Property Identifier As ModifiedIdentifierSyntax
            Get
                Return GetRedAtZero(_identifier)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as ModifiedIdentifierSyntax) As CollectionRangeVariableSyntax
            return Update(identifier, Me.AsClause, Me.InKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' Describes the type of the variable being defined.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As CollectionRangeVariableSyntax
            return Update(Me.Identifier, asClause, Me.InKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The "In" keyword.
        ''' </summary>
        Public ReadOnly Property InKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CollectionRangeVariableSyntax)._inKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the InKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithInKeyword(inKeyword as SyntaxToken) As CollectionRangeVariableSyntax
            return Update(Me.Identifier, Me.AsClause, inKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression that serves as the source of items for the range variable.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As CollectionRangeVariableSyntax
            return Update(Me.Identifier, Me.AsClause, Me.InKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._identifier
                Case 1
                    Return Me._asClause
                Case 3
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Identifier
                Case 1
                    Return Me.AsClause
                Case 3
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCollectionRangeVariable(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCollectionRangeVariable(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="inKeyword">
        ''' The value for the InKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(identifier As ModifiedIdentifierSyntax, asClause As SimpleAsClauseSyntax, inKeyword As SyntaxToken, expression As ExpressionSyntax) As CollectionRangeVariableSyntax
            If identifier IsNot Me.Identifier OrElse asClause IsNot Me.AsClause OrElse inKeyword <> Me.InKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.CollectionRangeVariable(identifier, asClause, inKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Describes a single variable of the form "[x [As Type] =] expression" for use in
    ''' query expressions.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ExpressionRangeVariable"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ExpressionRangeVariableSyntax
        Inherits VisualBasicSyntaxNode

        Friend _nameEquals as VariableNameEqualsSyntax
        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), nameEquals As VariableNameEqualsSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionRangeVariableSyntax(kind, errors, annotations, if(nameEquals IsNot Nothing, DirectCast(nameEquals.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VariableNameEqualsSyntax), Nothing), DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The optional name and type of the expression range variable. If omitted, the
        ''' name of the expression range variable is inferred from the expression.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property NameEquals As VariableNameEqualsSyntax
            Get
                Return GetRedAtZero(_nameEquals)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NameEquals property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNameEquals(nameEquals as VariableNameEqualsSyntax) As ExpressionRangeVariableSyntax
            return Update(nameEquals, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression used to initialize the expression variable.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As ExpressionRangeVariableSyntax
            return Update(Me.NameEquals, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._nameEquals
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.NameEquals
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitExpressionRangeVariable(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitExpressionRangeVariable(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="nameEquals">
        ''' The value for the NameEquals property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(nameEquals As VariableNameEqualsSyntax, expression As ExpressionSyntax) As ExpressionRangeVariableSyntax
            If nameEquals IsNot Me.NameEquals OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.ExpressionRangeVariable(nameEquals, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Describes a single variable of the form "[x [As Type] =] aggregation-function"
    ''' for use in the Into clause of Aggregate or Group By or Group Join query
    ''' operators.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AggregationRangeVariable"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AggregationRangeVariableSyntax
        Inherits VisualBasicSyntaxNode

        Friend _nameEquals as VariableNameEqualsSyntax
        Friend _aggregation as AggregationSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), nameEquals As VariableNameEqualsSyntax, aggregation As AggregationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AggregationRangeVariableSyntax(kind, errors, annotations, if(nameEquals IsNot Nothing, DirectCast(nameEquals.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VariableNameEqualsSyntax), Nothing), DirectCast(aggregation.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AggregationSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The optional name and type of the expression range variable. If omitted, the
        ''' name of the expression range variable is inferred from the aggregation
        ''' expression.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property NameEquals As VariableNameEqualsSyntax
            Get
                Return GetRedAtZero(_nameEquals)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NameEquals property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNameEquals(nameEquals as VariableNameEqualsSyntax) As AggregationRangeVariableSyntax
            return Update(nameEquals, Me.Aggregation)
        End Function

        ''' <summary>
        ''' The name of the aggregation function. The "Group" aggregation function is
        ''' represented by the identifier "Group".
        ''' </summary>
        Public ReadOnly Property Aggregation As AggregationSyntax
            Get
                Return GetRed(_aggregation, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Aggregation property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAggregation(aggregation as AggregationSyntax) As AggregationRangeVariableSyntax
            return Update(Me.NameEquals, aggregation)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._nameEquals
                Case 1
                    Return Me._aggregation
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.NameEquals
                Case 1
                    Return Me.Aggregation
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAggregationRangeVariable(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAggregationRangeVariable(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="nameEquals">
        ''' The value for the NameEquals property.
        ''' </param>
        ''' <param name="aggregation">
        ''' The value for the Aggregation property.
        ''' </param>
        Public Function Update(nameEquals As VariableNameEqualsSyntax, aggregation As AggregationSyntax) As AggregationRangeVariableSyntax
            If nameEquals IsNot Me.NameEquals OrElse aggregation IsNot Me.Aggregation Then
                Dim newNode = SyntaxFactory.AggregationRangeVariable(nameEquals, aggregation)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the name and optional type of an expression range variable.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.VariableNameEquals"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class VariableNameEqualsSyntax
        Inherits VisualBasicSyntaxNode

        Friend _identifier as ModifiedIdentifierSyntax
        Friend _asClause as SimpleAsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As ModifiedIdentifierSyntax, asClause As SimpleAsClauseSyntax, equalsToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VariableNameEqualsSyntax(kind, errors, annotations, DirectCast(identifier.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ModifiedIdentifierSyntax), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing), equalsToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The name of the variable being defined.
        ''' </summary>
        Public ReadOnly Property Identifier As ModifiedIdentifierSyntax
            Get
                Return GetRedAtZero(_identifier)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as ModifiedIdentifierSyntax) As VariableNameEqualsSyntax
            return Update(identifier, Me.AsClause, Me.EqualsToken)
        End Function

        ''' <summary>
        ''' Describes the type of the variable being defined.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As VariableNameEqualsSyntax
            return Update(Me.Identifier, asClause, Me.EqualsToken)
        End Function

        ''' <summary>
        ''' The "=" token.
        ''' </summary>
        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VariableNameEqualsSyntax)._equalsToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As VariableNameEqualsSyntax
            return Update(Me.Identifier, Me.AsClause, equalsToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._identifier
                Case 1
                    Return Me._asClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Identifier
                Case 1
                    Return Me.AsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitVariableNameEquals(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitVariableNameEquals(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        Public Function Update(identifier As ModifiedIdentifierSyntax, asClause As SimpleAsClauseSyntax, equalsToken As SyntaxToken) As VariableNameEqualsSyntax
            If identifier IsNot Me.Identifier OrElse asClause IsNot Me.AsClause OrElse equalsToken <> Me.EqualsToken Then
                Dim newNode = SyntaxFactory.VariableNameEquals(identifier, asClause, equalsToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents aggregation in aggregation range variable declaration of a Group By,
    ''' Group Join or Aggregate query operator.
    ''' </summary>
    Public MustInherit Class AggregationSyntax
        Inherits ExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents an invocation of an Aggregation function in the aggregation range
    ''' variable declaration of a Group By, Group Join or Aggregate query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.FunctionAggregation"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class FunctionAggregationSyntax
        Inherits AggregationSyntax

        Friend _argument as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), functionName As InternalSyntax.IdentifierTokenSyntax, openParenToken As InternalSyntax.PunctuationSyntax, argument As ExpressionSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FunctionAggregationSyntax(kind, errors, annotations, functionName, openParenToken, if(argument IsNot Nothing, DirectCast(argument.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The name of the aggregation function.
        ''' </summary>
        Public ReadOnly Property FunctionName As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FunctionAggregationSyntax)._functionName, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FunctionName property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithFunctionName(functionName as SyntaxToken) As FunctionAggregationSyntax
            return Update(functionName, Me.OpenParenToken, Me.Argument, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token if present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FunctionAggregationSyntax)._openParenToken
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As FunctionAggregationSyntax
            return Update(Me.FunctionName, openParenToken, Me.Argument, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The argument to the aggregation function.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Argument As ExpressionSyntax
            Get
                Return GetRed(_argument, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Argument property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgument(argument as ExpressionSyntax) As FunctionAggregationSyntax
            return Update(Me.FunctionName, Me.OpenParenToken, argument, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token, if present.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FunctionAggregationSyntax)._closeParenToken
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(3), Me.GetChildIndex(3))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As FunctionAggregationSyntax
            return Update(Me.FunctionName, Me.OpenParenToken, Me.Argument, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._argument
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Argument
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitFunctionAggregation(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitFunctionAggregation(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="functionName">
        ''' The value for the FunctionName property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="argument">
        ''' The value for the Argument property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(functionName As SyntaxToken, openParenToken As SyntaxToken, argument As ExpressionSyntax, closeParenToken As SyntaxToken) As FunctionAggregationSyntax
            If functionName <> Me.FunctionName OrElse openParenToken <> Me.OpenParenToken OrElse argument IsNot Me.Argument OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.FunctionAggregation(functionName, openParenToken, argument, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the use of "Group" as the aggregation function in the in the
    ''' aggregation range variable declaration of a Group By or Group Join query
    ''' operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GroupAggregation"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GroupAggregationSyntax
        Inherits AggregationSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), groupKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupAggregationSyntax(kind, errors, annotations, groupKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Group" keyword.
        ''' </summary>
        Public ReadOnly Property GroupKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupAggregationSyntax)._groupKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GroupKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithGroupKeyword(groupKeyword as SyntaxToken) As GroupAggregationSyntax
            return Update(groupKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGroupAggregation(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGroupAggregation(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="groupKeyword">
        ''' The value for the GroupKeyword property.
        ''' </param>
        Public Function Update(groupKeyword As SyntaxToken) As GroupAggregationSyntax
            If groupKeyword <> Me.GroupKeyword Then
                Dim newNode = SyntaxFactory.GroupAggregation(groupKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "From" query operator. If this is the beginning of a query, the
    ''' Source will be Nothing. Otherwise, the Source will be the part of the query to
    ''' the left of the From.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.FromClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class FromClauseSyntax
        Inherits QueryClauseSyntax

        Friend _variables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), fromKeyword As InternalSyntax.KeywordSyntax, variables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FromClauseSyntax(kind, errors, annotations, fromKeyword, if(variables IsNot Nothing, variables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "From" keyword.
        ''' </summary>
        Public ReadOnly Property FromKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.FromClauseSyntax)._fromKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FromKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithFromKeyword(fromKeyword as SyntaxToken) As FromClauseSyntax
            return Update(fromKeyword, Me.Variables)
        End Function

        ''' <summary>
        ''' The list of collection variables declared by this From operator.
        ''' </summary>
        Public ReadOnly Property Variables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_variables, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of CollectionRangeVariableSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Variables property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithVariables(variables as SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As FromClauseSyntax
            return Update(Me.FromKeyword, variables)
        End Function

        Public Shadows Function AddVariables(ParamArray items As CollectionRangeVariableSyntax()) As FromClauseSyntax
            Return Me.WithVariables(Me.Variables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._variables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_variables, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitFromClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitFromClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="fromKeyword">
        ''' The value for the FromKeyword property.
        ''' </param>
        ''' <param name="variables">
        ''' The value for the Variables property.
        ''' </param>
        Public Function Update(fromKeyword As SyntaxToken, variables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As FromClauseSyntax
            If fromKeyword <> Me.FromKeyword OrElse variables <> Me.Variables Then
                Dim newNode = SyntaxFactory.FromClause(fromKeyword, variables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Let" query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.LetClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class LetClauseSyntax
        Inherits QueryClauseSyntax

        Friend _variables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), letKeyword As InternalSyntax.KeywordSyntax, variables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LetClauseSyntax(kind, errors, annotations, letKeyword, if(variables IsNot Nothing, variables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Let" keyword.
        ''' </summary>
        Public ReadOnly Property LetKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.LetClauseSyntax)._letKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LetKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLetKeyword(letKeyword as SyntaxToken) As LetClauseSyntax
            return Update(letKeyword, Me.Variables)
        End Function

        ''' <summary>
        ''' The list of expression range variable being defined by the Let operator.
        ''' </summary>
        Public ReadOnly Property Variables As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_variables, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Variables property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithVariables(variables as SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)) As LetClauseSyntax
            return Update(Me.LetKeyword, variables)
        End Function

        Public Shadows Function AddVariables(ParamArray items As ExpressionRangeVariableSyntax()) As LetClauseSyntax
            Return Me.WithVariables(Me.Variables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._variables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_variables, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitLetClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitLetClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="letKeyword">
        ''' The value for the LetKeyword property.
        ''' </param>
        ''' <param name="variables">
        ''' The value for the Variables property.
        ''' </param>
        Public Function Update(letKeyword As SyntaxToken, variables As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)) As LetClauseSyntax
            If letKeyword <> Me.LetKeyword OrElse variables <> Me.Variables Then
                Dim newNode = SyntaxFactory.LetClause(letKeyword, variables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an Aggregate query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AggregateClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AggregateClauseSyntax
        Inherits QueryClauseSyntax

        Friend _variables as SyntaxNode
        Friend _additionalQueryOperators as SyntaxNode
        Friend _aggregationVariables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), aggregateKeyword As InternalSyntax.KeywordSyntax, variables As SyntaxNode, additionalQueryOperators As SyntaxNode, intoKeyword As InternalSyntax.KeywordSyntax, aggregationVariables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AggregateClauseSyntax(kind, errors, annotations, aggregateKeyword, if(variables IsNot Nothing, variables.Green, Nothing), if(additionalQueryOperators IsNot Nothing, additionalQueryOperators.Green, Nothing), intoKeyword, if(aggregationVariables IsNot Nothing, aggregationVariables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Aggregate" keyword.
        ''' </summary>
        Public ReadOnly Property AggregateKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AggregateClauseSyntax)._aggregateKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AggregateKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAggregateKeyword(aggregateKeyword as SyntaxToken) As AggregateClauseSyntax
            return Update(aggregateKeyword, Me.Variables, Me.AdditionalQueryOperators, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The list of collection range variables declared by this Aggregate operator.
        ''' </summary>
        Public ReadOnly Property Variables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_variables, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of CollectionRangeVariableSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Variables property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithVariables(variables as SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As AggregateClauseSyntax
            return Update(Me.AggregateKeyword, variables, Me.AdditionalQueryOperators, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        Public Shadows Function AddVariables(ParamArray items As CollectionRangeVariableSyntax()) As AggregateClauseSyntax
            Return Me.WithVariables(Me.Variables.AddRange(items))
        End Function

        ''' <summary>
        ''' A list of additional query operators. It may be empty.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AdditionalQueryOperators As SyntaxList(Of QueryClauseSyntax)
            Get
                Dim listNode = GetRed(_additionalQueryOperators, 2)
                Return new SyntaxList(Of QueryClauseSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AdditionalQueryOperators property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithAdditionalQueryOperators(additionalQueryOperators as SyntaxList(Of QueryClauseSyntax)) As AggregateClauseSyntax
            return Update(Me.AggregateKeyword, Me.Variables, additionalQueryOperators, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        Public Shadows Function AddAdditionalQueryOperators(ParamArray items As QueryClauseSyntax()) As AggregateClauseSyntax
            Return Me.WithAdditionalQueryOperators(Me.AdditionalQueryOperators.AddRange(items))
        End Function

        ''' <summary>
        ''' The "Into" keyword.
        ''' </summary>
        Public ReadOnly Property IntoKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AggregateClauseSyntax)._intoKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IntoKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIntoKeyword(intoKeyword as SyntaxToken) As AggregateClauseSyntax
            return Update(Me.AggregateKeyword, Me.Variables, Me.AdditionalQueryOperators, intoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The list of new variables being defined by the aggregation.
        ''' </summary>
        Public ReadOnly Property AggregationVariables As SeparatedSyntaxList(Of AggregationRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_aggregationVariables, 4)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of AggregationRangeVariableSyntax)(listNode, Me.GetChildIndex(4))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AggregationVariables property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAggregationVariables(aggregationVariables as SeparatedSyntaxList(Of AggregationRangeVariableSyntax)) As AggregateClauseSyntax
            return Update(Me.AggregateKeyword, Me.Variables, Me.AdditionalQueryOperators, Me.IntoKeyword, aggregationVariables)
        End Function

        Public Shadows Function AddAggregationVariables(ParamArray items As AggregationRangeVariableSyntax()) As AggregateClauseSyntax
            Return Me.WithAggregationVariables(Me.AggregationVariables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._variables
                Case 2
                    Return Me._additionalQueryOperators
                Case 4
                    Return Me._aggregationVariables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_variables, 1)
                Case 2
                    Return GetRed(_additionalQueryOperators, 2)
                Case 4
                    Return GetRed(_aggregationVariables, 4)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAggregateClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAggregateClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="aggregateKeyword">
        ''' The value for the AggregateKeyword property.
        ''' </param>
        ''' <param name="variables">
        ''' The value for the Variables property.
        ''' </param>
        ''' <param name="additionalQueryOperators">
        ''' The value for the AdditionalQueryOperators property.
        ''' </param>
        ''' <param name="intoKeyword">
        ''' The value for the IntoKeyword property.
        ''' </param>
        ''' <param name="aggregationVariables">
        ''' The value for the AggregationVariables property.
        ''' </param>
        Public Function Update(aggregateKeyword As SyntaxToken, variables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax), additionalQueryOperators As SyntaxList(of QueryClauseSyntax), intoKeyword As SyntaxToken, aggregationVariables As SeparatedSyntaxList(Of AggregationRangeVariableSyntax)) As AggregateClauseSyntax
            If aggregateKeyword <> Me.AggregateKeyword OrElse variables <> Me.Variables OrElse additionalQueryOperators <> Me.AdditionalQueryOperators OrElse intoKeyword <> Me.IntoKeyword OrElse aggregationVariables <> Me.AggregationVariables Then
                Dim newNode = SyntaxFactory.AggregateClause(aggregateKeyword, variables, additionalQueryOperators, intoKeyword, aggregationVariables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Distinct" query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.DistinctClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DistinctClauseSyntax
        Inherits QueryClauseSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), distinctKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DistinctClauseSyntax(kind, errors, annotations, distinctKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Distinct" keyword.
        ''' </summary>
        Public ReadOnly Property DistinctKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DistinctClauseSyntax)._distinctKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DistinctKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithDistinctKeyword(distinctKeyword as SyntaxToken) As DistinctClauseSyntax
            return Update(distinctKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDistinctClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDistinctClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="distinctKeyword">
        ''' The value for the DistinctKeyword property.
        ''' </param>
        Public Function Update(distinctKeyword As SyntaxToken) As DistinctClauseSyntax
            If distinctKeyword <> Me.DistinctKeyword Then
                Dim newNode = SyntaxFactory.DistinctClause(distinctKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Where" query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.WhereClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class WhereClauseSyntax
        Inherits QueryClauseSyntax

        Friend _condition as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), whereKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhereClauseSyntax(kind, errors, annotations, whereKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Where" keyword.
        ''' </summary>
        Public ReadOnly Property WhereKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.WhereClauseSyntax)._whereKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhereKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhereKeyword(whereKeyword as SyntaxToken) As WhereClauseSyntax
            return Update(whereKeyword, Me.Condition)
        End Function

        ''' <summary>
        ''' The boolean expression used for filtering.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As WhereClauseSyntax
            return Update(Me.WhereKeyword, condition)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitWhereClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitWhereClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="whereKeyword">
        ''' The value for the WhereKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        Public Function Update(whereKeyword As SyntaxToken, condition As ExpressionSyntax) As WhereClauseSyntax
            If whereKeyword <> Me.WhereKeyword OrElse condition IsNot Me.Condition Then
                Dim newNode = SyntaxFactory.WhereClause(whereKeyword, condition)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Skip While" or "Take While" query operator. The Kind property
    ''' tells which.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SkipWhileClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.TakeWhileClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class PartitionWhileClauseSyntax
        Inherits QueryClauseSyntax

        Friend _condition as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), skipOrTakeKeyword As InternalSyntax.KeywordSyntax, whileKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PartitionWhileClauseSyntax(kind, errors, annotations, skipOrTakeKeyword, whileKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Skip" or "Take" keyword.
        ''' </summary>
        Public ReadOnly Property SkipOrTakeKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PartitionWhileClauseSyntax)._skipOrTakeKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SkipOrTakeKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSkipOrTakeKeyword(skipOrTakeKeyword as SyntaxToken) As PartitionWhileClauseSyntax
            return Update(Me.Kind, skipOrTakeKeyword, Me.WhileKeyword, Me.Condition)
        End Function

        ''' <summary>
        ''' The "While" keyword.
        ''' </summary>
        Public ReadOnly Property WhileKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PartitionWhileClauseSyntax)._whileKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhileKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhileKeyword(whileKeyword as SyntaxToken) As PartitionWhileClauseSyntax
            return Update(Me.Kind, Me.SkipOrTakeKeyword, whileKeyword, Me.Condition)
        End Function

        ''' <summary>
        ''' The boolean expression used for partitioning.
        ''' </summary>
        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As PartitionWhileClauseSyntax
            return Update(Me.Kind, Me.SkipOrTakeKeyword, Me.WhileKeyword, condition)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitPartitionWhileClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitPartitionWhileClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="skipOrTakeKeyword">
        ''' The value for the SkipOrTakeKeyword property.
        ''' </param>
        ''' <param name="whileKeyword">
        ''' The value for the WhileKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, skipOrTakeKeyword As SyntaxToken, whileKeyword As SyntaxToken, condition As ExpressionSyntax) As PartitionWhileClauseSyntax
            If kind <> Me.Kind OrElse skipOrTakeKeyword <> Me.SkipOrTakeKeyword OrElse whileKeyword <> Me.WhileKeyword OrElse condition IsNot Me.Condition Then
                Dim newNode = SyntaxFactory.PartitionWhileClause(kind, skipOrTakeKeyword, whileKeyword, condition)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a "Skip" or "Take" query operator. The Kind property tells which.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SkipClause"/></description></item>
    ''' <item><description><see cref="SyntaxKind.TakeClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class PartitionClauseSyntax
        Inherits QueryClauseSyntax

        Friend _count as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), skipOrTakeKeyword As InternalSyntax.KeywordSyntax, count As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PartitionClauseSyntax(kind, errors, annotations, skipOrTakeKeyword, DirectCast(count.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Skip" or "Take" keyword.
        ''' </summary>
        Public ReadOnly Property SkipOrTakeKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PartitionClauseSyntax)._skipOrTakeKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SkipOrTakeKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSkipOrTakeKeyword(skipOrTakeKeyword as SyntaxToken) As PartitionClauseSyntax
            return Update(Me.Kind, skipOrTakeKeyword, Me.Count)
        End Function

        ''' <summary>
        ''' Represents the expression with the number of items to take or skip.
        ''' </summary>
        Public ReadOnly Property Count As ExpressionSyntax
            Get
                Return GetRed(_count, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Count property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithCount(count as ExpressionSyntax) As PartitionClauseSyntax
            return Update(Me.Kind, Me.SkipOrTakeKeyword, count)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._count
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Count
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitPartitionClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitPartitionClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="skipOrTakeKeyword">
        ''' The value for the SkipOrTakeKeyword property.
        ''' </param>
        ''' <param name="count">
        ''' The value for the Count property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, skipOrTakeKeyword As SyntaxToken, count As ExpressionSyntax) As PartitionClauseSyntax
            If kind <> Me.Kind OrElse skipOrTakeKeyword <> Me.SkipOrTakeKeyword OrElse count IsNot Me.Count Then
                Dim newNode = SyntaxFactory.PartitionClause(kind, skipOrTakeKeyword, count)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Group By" query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GroupByClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GroupByClauseSyntax
        Inherits QueryClauseSyntax

        Friend _items as SyntaxNode
        Friend _keys as SyntaxNode
        Friend _aggregationVariables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), groupKeyword As InternalSyntax.KeywordSyntax, items As SyntaxNode, byKeyword As InternalSyntax.KeywordSyntax, keys As SyntaxNode, intoKeyword As InternalSyntax.KeywordSyntax, aggregationVariables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupByClauseSyntax(kind, errors, annotations, groupKeyword, if(items IsNot Nothing, items.Green, Nothing), byKeyword, if(keys IsNot Nothing, keys.Green, Nothing), intoKeyword, if(aggregationVariables IsNot Nothing, aggregationVariables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Group" keyword.
        ''' </summary>
        Public ReadOnly Property GroupKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupByClauseSyntax)._groupKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GroupKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithGroupKeyword(groupKeyword as SyntaxToken) As GroupByClauseSyntax
            return Update(groupKeyword, Me.Items, Me.ByKeyword, Me.Keys, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The optional list of variables being grouped; the contents of the Group clause.
        ''' If none were specified, an empty list is returned.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Items As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_items, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Items property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithItems(items as SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)) As GroupByClauseSyntax
            return Update(Me.GroupKeyword, items, Me.ByKeyword, Me.Keys, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        Public Shadows Function AddItems(ParamArray items As ExpressionRangeVariableSyntax()) As GroupByClauseSyntax
            Return Me.WithItems(Me.Items.AddRange(items))
        End Function

        ''' <summary>
        ''' The "By" keyword.
        ''' </summary>
        Public ReadOnly Property ByKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupByClauseSyntax)._byKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ByKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithByKeyword(byKeyword as SyntaxToken) As GroupByClauseSyntax
            return Update(Me.GroupKeyword, Me.Items, byKeyword, Me.Keys, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The key values being used for grouping.
        ''' </summary>
        Public ReadOnly Property Keys As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_keys, 3)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)(listNode, Me.GetChildIndex(3))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Keys property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithKeys(keys as SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)) As GroupByClauseSyntax
            return Update(Me.GroupKeyword, Me.Items, Me.ByKeyword, keys, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        Public Shadows Function AddKeys(ParamArray items As ExpressionRangeVariableSyntax()) As GroupByClauseSyntax
            Return Me.WithKeys(Me.Keys.AddRange(items))
        End Function

        Public ReadOnly Property IntoKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupByClauseSyntax)._intoKeyword, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IntoKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIntoKeyword(intoKeyword as SyntaxToken) As GroupByClauseSyntax
            return Update(Me.GroupKeyword, Me.Items, Me.ByKeyword, Me.Keys, intoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The list of new variables that calculate aggregations.
        ''' </summary>
        Public ReadOnly Property AggregationVariables As SeparatedSyntaxList(Of AggregationRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_aggregationVariables, 5)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of AggregationRangeVariableSyntax)(listNode, Me.GetChildIndex(5))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AggregationVariables property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAggregationVariables(aggregationVariables as SeparatedSyntaxList(Of AggregationRangeVariableSyntax)) As GroupByClauseSyntax
            return Update(Me.GroupKeyword, Me.Items, Me.ByKeyword, Me.Keys, Me.IntoKeyword, aggregationVariables)
        End Function

        Public Shadows Function AddAggregationVariables(ParamArray items As AggregationRangeVariableSyntax()) As GroupByClauseSyntax
            Return Me.WithAggregationVariables(Me.AggregationVariables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._items
                Case 3
                    Return Me._keys
                Case 5
                    Return Me._aggregationVariables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_items, 1)
                Case 3
                    Return GetRed(_keys, 3)
                Case 5
                    Return GetRed(_aggregationVariables, 5)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGroupByClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGroupByClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="groupKeyword">
        ''' The value for the GroupKeyword property.
        ''' </param>
        ''' <param name="items">
        ''' The value for the Items property.
        ''' </param>
        ''' <param name="byKeyword">
        ''' The value for the ByKeyword property.
        ''' </param>
        ''' <param name="keys">
        ''' The value for the Keys property.
        ''' </param>
        ''' <param name="intoKeyword">
        ''' The value for the IntoKeyword property.
        ''' </param>
        ''' <param name="aggregationVariables">
        ''' The value for the AggregationVariables property.
        ''' </param>
        Public Function Update(groupKeyword As SyntaxToken, items As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax), byKeyword As SyntaxToken, keys As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax), intoKeyword As SyntaxToken, aggregationVariables As SeparatedSyntaxList(Of AggregationRangeVariableSyntax)) As GroupByClauseSyntax
            If groupKeyword <> Me.GroupKeyword OrElse items <> Me.Items OrElse byKeyword <> Me.ByKeyword OrElse keys <> Me.Keys OrElse intoKeyword <> Me.IntoKeyword OrElse aggregationVariables <> Me.AggregationVariables Then
                Dim newNode = SyntaxFactory.GroupByClause(groupKeyword, items, byKeyword, keys, intoKeyword, aggregationVariables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Join or a Group Join query operator.
    ''' </summary>
    Public MustInherit Class JoinClauseSyntax
        Inherits QueryClauseSyntax

        Friend _joinedVariables as SyntaxNode
        Friend _additionalJoins as SyntaxNode
        Friend _joinConditions as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The "Join" keyword.
        ''' </summary>
        Public ReadOnly Property JoinKeyword As SyntaxToken
            Get
                Return Me.GetJoinKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetJoinKeywordCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.JoinClauseSyntax)._joinKeyword, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the JoinKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithJoinKeyword(joinKeyword As SyntaxToken) As JoinClauseSyntax
            Return WithJoinKeywordCore(joinKeyword)
        End Function
        Friend MustOverride Function WithJoinKeywordCore(joinKeyword As SyntaxToken) As JoinClauseSyntax

        ''' <summary>
        ''' Defines the collection range variables being joined to.
        ''' </summary>
        Public Overridable ReadOnly Property JoinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_joinedVariables, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of CollectionRangeVariableSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the JoinedVariables property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithJoinedVariables(joinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As JoinClauseSyntax
            Return WithJoinedVariablesCore(joinedVariables)
        End Function
        Friend MustOverride Function WithJoinedVariablesCore(joinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As JoinClauseSyntax

        Public Shadows Function AddJoinedVariables(ParamArray items As CollectionRangeVariableSyntax()) As JoinClauseSyntax
            Return AddJoinedVariablesCore(items)
        End Function
        Friend MustOverride Function AddJoinedVariablesCore(ParamArray items As CollectionRangeVariableSyntax()) As JoinClauseSyntax
        ''' <summary>
        ''' An additional Join or Group Join query operator.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property AdditionalJoins As SyntaxList(Of JoinClauseSyntax)
            Get
                Return Me.GetAdditionalJoinsCore()
            End Get
        End Property

        Friend Overridable Function GetAdditionalJoinsCore() As SyntaxList(Of JoinClauseSyntax)
            Dim listNode = GetRed(_additionalJoins, 2)
            Return new SyntaxList(Of JoinClauseSyntax)(listNode)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AdditionalJoins property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithAdditionalJoins(additionalJoins As SyntaxList(Of JoinClauseSyntax)) As JoinClauseSyntax
            Return WithAdditionalJoinsCore(additionalJoins)
        End Function
        Friend MustOverride Function WithAdditionalJoinsCore(additionalJoins As SyntaxList(Of JoinClauseSyntax)) As JoinClauseSyntax

        Public Shadows Function AddAdditionalJoins(ParamArray items As JoinClauseSyntax()) As JoinClauseSyntax
            Return AddAdditionalJoinsCore(items)
        End Function
        Friend MustOverride Function AddAdditionalJoinsCore(ParamArray items As JoinClauseSyntax()) As JoinClauseSyntax
        ''' <summary>
        ''' The "On" keyword.
        ''' </summary>
        Public ReadOnly Property OnKeyword As SyntaxToken
            Get
                Return Me.GetOnKeywordCore()
            End Get
        End Property

        Friend Overridable Function GetOnKeywordCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.JoinClauseSyntax)._onKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
        End Function

        ''' <summary>
        ''' Returns a copy of this with the OnKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithOnKeyword(onKeyword As SyntaxToken) As JoinClauseSyntax
            Return WithOnKeywordCore(onKeyword)
        End Function
        Friend MustOverride Function WithOnKeywordCore(onKeyword As SyntaxToken) As JoinClauseSyntax

        ''' <summary>
        ''' The conditions indicating what expressions to compare during the join. Each
        ''' condition is a JoinCondition, and the separators are "And" keywords.
        ''' </summary>
        Public Overridable ReadOnly Property JoinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)
            Get
                Dim listNode = GetRed(_joinConditions, 4)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of JoinConditionSyntax)(listNode, Me.GetChildIndex(4))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the JoinConditions property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Function WithJoinConditions(joinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)) As JoinClauseSyntax
            Return WithJoinConditionsCore(joinConditions)
        End Function
        Friend MustOverride Function WithJoinConditionsCore(joinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)) As JoinClauseSyntax

        Public Shadows Function AddJoinConditions(ParamArray items As JoinConditionSyntax()) As JoinClauseSyntax
            Return AddJoinConditionsCore(items)
        End Function
        Friend MustOverride Function AddJoinConditionsCore(ParamArray items As JoinConditionSyntax()) As JoinClauseSyntax
    End Class

    ''' <summary>
    ''' Represents the "expression Equals expression" condition in a Join.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.JoinCondition"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class JoinConditionSyntax
        Inherits VisualBasicSyntaxNode

        Friend _left as ExpressionSyntax
        Friend _right as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), left As ExpressionSyntax, equalsKeyword As InternalSyntax.KeywordSyntax, right As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.JoinConditionSyntax(kind, errors, annotations, DirectCast(left.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), equalsKeyword, DirectCast(right.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The left expression in the Join condition.
        ''' </summary>
        Public ReadOnly Property Left As ExpressionSyntax
            Get
                Return GetRedAtZero(_left)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Left property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLeft(left as ExpressionSyntax) As JoinConditionSyntax
            return Update(left, Me.EqualsKeyword, Me.Right)
        End Function

        ''' <summary>
        ''' The "Equals" keyword.
        ''' </summary>
        Public ReadOnly Property EqualsKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.JoinConditionSyntax)._equalsKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsKeyword(equalsKeyword as SyntaxToken) As JoinConditionSyntax
            return Update(Me.Left, equalsKeyword, Me.Right)
        End Function

        ''' <summary>
        ''' The right expression in the Join condition.
        ''' </summary>
        Public ReadOnly Property Right As ExpressionSyntax
            Get
                Return GetRed(_right, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Right property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithRight(right as ExpressionSyntax) As JoinConditionSyntax
            return Update(Me.Left, Me.EqualsKeyword, right)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._left
                Case 2
                    Return Me._right
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Left
                Case 2
                    Return Me.Right
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitJoinCondition(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitJoinCondition(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="left">
        ''' The value for the Left property.
        ''' </param>
        ''' <param name="equalsKeyword">
        ''' The value for the EqualsKeyword property.
        ''' </param>
        ''' <param name="right">
        ''' The value for the Right property.
        ''' </param>
        Public Function Update(left As ExpressionSyntax, equalsKeyword As SyntaxToken, right As ExpressionSyntax) As JoinConditionSyntax
            If left IsNot Me.Left OrElse equalsKeyword <> Me.EqualsKeyword OrElse right IsNot Me.Right Then
                Dim newNode = SyntaxFactory.JoinCondition(left, equalsKeyword, right)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a Join query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SimpleJoinClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SimpleJoinClauseSyntax
        Inherits JoinClauseSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), joinKeyword As InternalSyntax.KeywordSyntax, joinedVariables As SyntaxNode, additionalJoins As SyntaxNode, onKeyword As InternalSyntax.KeywordSyntax, joinConditions As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleJoinClauseSyntax(kind, errors, annotations, joinKeyword, if(joinedVariables IsNot Nothing, joinedVariables.Green, Nothing), if(additionalJoins IsNot Nothing, additionalJoins.Green, Nothing), onKeyword, if(joinConditions IsNot Nothing, joinConditions.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Join" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property JoinKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleJoinClauseSyntax)._joinKeyword, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetJoinKeywordCore() As SyntaxToken
            Return Me.JoinKeyword
        End Function

        Friend Overrides Function WithJoinKeywordCore(joinKeyword As SyntaxToken) As JoinClauseSyntax
            Return WithJoinKeyword(joinKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the JoinKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithJoinKeyword(joinKeyword as SyntaxToken) As SimpleJoinClauseSyntax
            return Update(joinKeyword, Me.JoinedVariables, Me.AdditionalJoins, Me.OnKeyword, Me.JoinConditions)
        End Function

        ''' <summary>
        ''' Defines the collection range variables being joined to.
        ''' </summary>
        Public Overrides ReadOnly Property JoinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_joinedVariables, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of CollectionRangeVariableSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function WithJoinedVariablesCore(joinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As JoinClauseSyntax
            Return WithJoinedVariables(joinedVariables)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the JoinedVariables property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithJoinedVariables(joinedVariables as SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As SimpleJoinClauseSyntax
            return Update(Me.JoinKeyword, joinedVariables, Me.AdditionalJoins, Me.OnKeyword, Me.JoinConditions)
        End Function

        Public Shadows Function AddJoinedVariables(ParamArray items As CollectionRangeVariableSyntax()) As SimpleJoinClauseSyntax
            Return Me.WithJoinedVariables(Me.JoinedVariables.AddRange(items))
        End Function

        Friend Overrides Function AddJoinedVariablesCore(ParamArray items As CollectionRangeVariableSyntax()) As JoinClauseSyntax
            Return AddJoinedVariables(items)
        End Function

        ''' <summary>
        ''' An additional Join or Group Join query operator.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AdditionalJoins As SyntaxList(Of JoinClauseSyntax)
            Get
                Dim listNode = GetRed(_additionalJoins, 2)
                Return new SyntaxList(Of JoinClauseSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAdditionalJoinsCore() As SyntaxList(Of JoinClauseSyntax)
            Return Me.AdditionalJoins
        End Function

        Friend Overrides Function WithAdditionalJoinsCore(additionalJoins As SyntaxList(Of JoinClauseSyntax)) As JoinClauseSyntax
            Return WithAdditionalJoins(additionalJoins)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AdditionalJoins property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAdditionalJoins(additionalJoins as SyntaxList(Of JoinClauseSyntax)) As SimpleJoinClauseSyntax
            return Update(Me.JoinKeyword, Me.JoinedVariables, additionalJoins, Me.OnKeyword, Me.JoinConditions)
        End Function

        Public Shadows Function AddAdditionalJoins(ParamArray items As JoinClauseSyntax()) As SimpleJoinClauseSyntax
            Return Me.WithAdditionalJoins(Me.AdditionalJoins.AddRange(items))
        End Function

        Friend Overrides Function AddAdditionalJoinsCore(ParamArray items As JoinClauseSyntax()) As JoinClauseSyntax
            Return AddAdditionalJoins(items)
        End Function

        ''' <summary>
        ''' The "On" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property OnKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleJoinClauseSyntax)._onKeyword, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        Friend Overrides Function GetOnKeywordCore() As SyntaxToken
            Return Me.OnKeyword
        End Function

        Friend Overrides Function WithOnKeywordCore(onKeyword As SyntaxToken) As JoinClauseSyntax
            Return WithOnKeyword(onKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the OnKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOnKeyword(onKeyword as SyntaxToken) As SimpleJoinClauseSyntax
            return Update(Me.JoinKeyword, Me.JoinedVariables, Me.AdditionalJoins, onKeyword, Me.JoinConditions)
        End Function

        ''' <summary>
        ''' The conditions indicating what expressions to compare during the join. Each
        ''' condition is a JoinCondition, and the separators are "And" keywords.
        ''' </summary>
        Public Overrides ReadOnly Property JoinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)
            Get
                Dim listNode = GetRed(_joinConditions, 4)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of JoinConditionSyntax)(listNode, Me.GetChildIndex(4))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function WithJoinConditionsCore(joinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)) As JoinClauseSyntax
            Return WithJoinConditions(joinConditions)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the JoinConditions property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithJoinConditions(joinConditions as SeparatedSyntaxList(Of JoinConditionSyntax)) As SimpleJoinClauseSyntax
            return Update(Me.JoinKeyword, Me.JoinedVariables, Me.AdditionalJoins, Me.OnKeyword, joinConditions)
        End Function

        Public Shadows Function AddJoinConditions(ParamArray items As JoinConditionSyntax()) As SimpleJoinClauseSyntax
            Return Me.WithJoinConditions(Me.JoinConditions.AddRange(items))
        End Function

        Friend Overrides Function AddJoinConditionsCore(ParamArray items As JoinConditionSyntax()) As JoinClauseSyntax
            Return AddJoinConditions(items)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._joinedVariables
                Case 2
                    Return Me._additionalJoins
                Case 4
                    Return Me._joinConditions
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_joinedVariables, 1)
                Case 2
                    Return GetRed(_additionalJoins, 2)
                Case 4
                    Return GetRed(_joinConditions, 4)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSimpleJoinClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSimpleJoinClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="joinKeyword">
        ''' The value for the JoinKeyword property.
        ''' </param>
        ''' <param name="joinedVariables">
        ''' The value for the JoinedVariables property.
        ''' </param>
        ''' <param name="additionalJoins">
        ''' The value for the AdditionalJoins property.
        ''' </param>
        ''' <param name="onKeyword">
        ''' The value for the OnKeyword property.
        ''' </param>
        ''' <param name="joinConditions">
        ''' The value for the JoinConditions property.
        ''' </param>
        Public Function Update(joinKeyword As SyntaxToken, joinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax), additionalJoins As SyntaxList(of JoinClauseSyntax), onKeyword As SyntaxToken, joinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)) As SimpleJoinClauseSyntax
            If joinKeyword <> Me.JoinKeyword OrElse joinedVariables <> Me.JoinedVariables OrElse additionalJoins <> Me.AdditionalJoins OrElse onKeyword <> Me.OnKeyword OrElse joinConditions <> Me.JoinConditions Then
                Dim newNode = SyntaxFactory.SimpleJoinClause(joinKeyword, joinedVariables, additionalJoins, onKeyword, joinConditions)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Group Join" query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GroupJoinClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GroupJoinClauseSyntax
        Inherits JoinClauseSyntax

        Friend _aggregationVariables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), groupKeyword As InternalSyntax.KeywordSyntax, joinKeyword As InternalSyntax.KeywordSyntax, joinedVariables As SyntaxNode, additionalJoins As SyntaxNode, onKeyword As InternalSyntax.KeywordSyntax, joinConditions As SyntaxNode, intoKeyword As InternalSyntax.KeywordSyntax, aggregationVariables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupJoinClauseSyntax(kind, errors, annotations, groupKeyword, joinKeyword, if(joinedVariables IsNot Nothing, joinedVariables.Green, Nothing), if(additionalJoins IsNot Nothing, additionalJoins.Green, Nothing), onKeyword, if(joinConditions IsNot Nothing, joinConditions.Green, Nothing), intoKeyword, if(aggregationVariables IsNot Nothing, aggregationVariables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Group" keyword.
        ''' </summary>
        Public ReadOnly Property GroupKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupJoinClauseSyntax)._groupKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GroupKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithGroupKeyword(groupKeyword as SyntaxToken) As GroupJoinClauseSyntax
            return Update(groupKeyword, Me.JoinKeyword, Me.JoinedVariables, Me.AdditionalJoins, Me.OnKeyword, Me.JoinConditions, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The "Join" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property JoinKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupJoinClauseSyntax)._joinKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        Friend Overrides Function GetJoinKeywordCore() As SyntaxToken
            Return Me.JoinKeyword
        End Function

        Friend Overrides Function WithJoinKeywordCore(joinKeyword As SyntaxToken) As JoinClauseSyntax
            Return WithJoinKeyword(joinKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the JoinKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithJoinKeyword(joinKeyword as SyntaxToken) As GroupJoinClauseSyntax
            return Update(Me.GroupKeyword, joinKeyword, Me.JoinedVariables, Me.AdditionalJoins, Me.OnKeyword, Me.JoinConditions, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' Defines the collection range variables being joined to.
        ''' </summary>
        Public Overrides ReadOnly Property JoinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_joinedVariables, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of CollectionRangeVariableSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function WithJoinedVariablesCore(joinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As JoinClauseSyntax
            Return WithJoinedVariables(joinedVariables)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the JoinedVariables property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithJoinedVariables(joinedVariables as SeparatedSyntaxList(Of CollectionRangeVariableSyntax)) As GroupJoinClauseSyntax
            return Update(Me.GroupKeyword, Me.JoinKeyword, joinedVariables, Me.AdditionalJoins, Me.OnKeyword, Me.JoinConditions, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        Public Shadows Function AddJoinedVariables(ParamArray items As CollectionRangeVariableSyntax()) As GroupJoinClauseSyntax
            Return Me.WithJoinedVariables(Me.JoinedVariables.AddRange(items))
        End Function

        Friend Overrides Function AddJoinedVariablesCore(ParamArray items As CollectionRangeVariableSyntax()) As JoinClauseSyntax
            Return AddJoinedVariables(items)
        End Function

        ''' <summary>
        ''' An additional Join or Group Join query operator.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public Shadows ReadOnly Property AdditionalJoins As SyntaxList(Of JoinClauseSyntax)
            Get
                Dim listNode = GetRed(_additionalJoins, 3)
                Return new SyntaxList(Of JoinClauseSyntax)(listNode)
            End Get
        End Property

        Friend Overrides Function GetAdditionalJoinsCore() As SyntaxList(Of JoinClauseSyntax)
            Return Me.AdditionalJoins
        End Function

        Friend Overrides Function WithAdditionalJoinsCore(additionalJoins As SyntaxList(Of JoinClauseSyntax)) As JoinClauseSyntax
            Return WithAdditionalJoins(additionalJoins)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the AdditionalJoins property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAdditionalJoins(additionalJoins as SyntaxList(Of JoinClauseSyntax)) As GroupJoinClauseSyntax
            return Update(Me.GroupKeyword, Me.JoinKeyword, Me.JoinedVariables, additionalJoins, Me.OnKeyword, Me.JoinConditions, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        Public Shadows Function AddAdditionalJoins(ParamArray items As JoinClauseSyntax()) As GroupJoinClauseSyntax
            Return Me.WithAdditionalJoins(Me.AdditionalJoins.AddRange(items))
        End Function

        Friend Overrides Function AddAdditionalJoinsCore(ParamArray items As JoinClauseSyntax()) As JoinClauseSyntax
            Return AddAdditionalJoins(items)
        End Function

        ''' <summary>
        ''' The "On" keyword.
        ''' </summary>
        Public Shadows ReadOnly Property OnKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupJoinClauseSyntax)._onKeyword, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        Friend Overrides Function GetOnKeywordCore() As SyntaxToken
            Return Me.OnKeyword
        End Function

        Friend Overrides Function WithOnKeywordCore(onKeyword As SyntaxToken) As JoinClauseSyntax
            Return WithOnKeyword(onKeyword)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the OnKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOnKeyword(onKeyword as SyntaxToken) As GroupJoinClauseSyntax
            return Update(Me.GroupKeyword, Me.JoinKeyword, Me.JoinedVariables, Me.AdditionalJoins, onKeyword, Me.JoinConditions, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The conditions indicating what expressions to compare during the join. Each
        ''' condition is a JoinCondition, and the separators are "And" keywords.
        ''' </summary>
        Public Overrides ReadOnly Property JoinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)
            Get
                Dim listNode = GetRed(_joinConditions, 5)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of JoinConditionSyntax)(listNode, Me.GetChildIndex(5))
                End If
                Return Nothing
            End Get
        End Property

        Friend Overrides Function WithJoinConditionsCore(joinConditions As SeparatedSyntaxList(Of JoinConditionSyntax)) As JoinClauseSyntax
            Return WithJoinConditions(joinConditions)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the JoinConditions property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithJoinConditions(joinConditions as SeparatedSyntaxList(Of JoinConditionSyntax)) As GroupJoinClauseSyntax
            return Update(Me.GroupKeyword, Me.JoinKeyword, Me.JoinedVariables, Me.AdditionalJoins, Me.OnKeyword, joinConditions, Me.IntoKeyword, Me.AggregationVariables)
        End Function

        Public Shadows Function AddJoinConditions(ParamArray items As JoinConditionSyntax()) As GroupJoinClauseSyntax
            Return Me.WithJoinConditions(Me.JoinConditions.AddRange(items))
        End Function

        Friend Overrides Function AddJoinConditionsCore(ParamArray items As JoinConditionSyntax()) As JoinClauseSyntax
            Return AddJoinConditions(items)
        End Function

        ''' <summary>
        ''' The "Into" keyword.
        ''' </summary>
        Public ReadOnly Property IntoKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GroupJoinClauseSyntax)._intoKeyword, Me.GetChildPosition(6), Me.GetChildIndex(6))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IntoKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIntoKeyword(intoKeyword as SyntaxToken) As GroupJoinClauseSyntax
            return Update(Me.GroupKeyword, Me.JoinKeyword, Me.JoinedVariables, Me.AdditionalJoins, Me.OnKeyword, Me.JoinConditions, intoKeyword, Me.AggregationVariables)
        End Function

        ''' <summary>
        ''' The list of new variables that calculate aggregations.
        ''' </summary>
        Public ReadOnly Property AggregationVariables As SeparatedSyntaxList(Of AggregationRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_aggregationVariables, 7)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of AggregationRangeVariableSyntax)(listNode, Me.GetChildIndex(7))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AggregationVariables property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAggregationVariables(aggregationVariables as SeparatedSyntaxList(Of AggregationRangeVariableSyntax)) As GroupJoinClauseSyntax
            return Update(Me.GroupKeyword, Me.JoinKeyword, Me.JoinedVariables, Me.AdditionalJoins, Me.OnKeyword, Me.JoinConditions, Me.IntoKeyword, aggregationVariables)
        End Function

        Public Shadows Function AddAggregationVariables(ParamArray items As AggregationRangeVariableSyntax()) As GroupJoinClauseSyntax
            Return Me.WithAggregationVariables(Me.AggregationVariables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._joinedVariables
                Case 3
                    Return Me._additionalJoins
                Case 5
                    Return Me._joinConditions
                Case 7
                    Return Me._aggregationVariables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return GetRed(_joinedVariables, 2)
                Case 3
                    Return GetRed(_additionalJoins, 3)
                Case 5
                    Return GetRed(_joinConditions, 5)
                Case 7
                    Return GetRed(_aggregationVariables, 7)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGroupJoinClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGroupJoinClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="groupKeyword">
        ''' The value for the GroupKeyword property.
        ''' </param>
        ''' <param name="joinKeyword">
        ''' The value for the JoinKeyword property.
        ''' </param>
        ''' <param name="joinedVariables">
        ''' The value for the JoinedVariables property.
        ''' </param>
        ''' <param name="additionalJoins">
        ''' The value for the AdditionalJoins property.
        ''' </param>
        ''' <param name="onKeyword">
        ''' The value for the OnKeyword property.
        ''' </param>
        ''' <param name="joinConditions">
        ''' The value for the JoinConditions property.
        ''' </param>
        ''' <param name="intoKeyword">
        ''' The value for the IntoKeyword property.
        ''' </param>
        ''' <param name="aggregationVariables">
        ''' The value for the AggregationVariables property.
        ''' </param>
        Public Function Update(groupKeyword As SyntaxToken, joinKeyword As SyntaxToken, joinedVariables As SeparatedSyntaxList(Of CollectionRangeVariableSyntax), additionalJoins As SyntaxList(of JoinClauseSyntax), onKeyword As SyntaxToken, joinConditions As SeparatedSyntaxList(Of JoinConditionSyntax), intoKeyword As SyntaxToken, aggregationVariables As SeparatedSyntaxList(Of AggregationRangeVariableSyntax)) As GroupJoinClauseSyntax
            If groupKeyword <> Me.GroupKeyword OrElse joinKeyword <> Me.JoinKeyword OrElse joinedVariables <> Me.JoinedVariables OrElse additionalJoins <> Me.AdditionalJoins OrElse onKeyword <> Me.OnKeyword OrElse joinConditions <> Me.JoinConditions OrElse intoKeyword <> Me.IntoKeyword OrElse aggregationVariables <> Me.AggregationVariables Then
                Dim newNode = SyntaxFactory.GroupJoinClause(groupKeyword, joinKeyword, joinedVariables, additionalJoins, onKeyword, joinConditions, intoKeyword, aggregationVariables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Order By" query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.OrderByClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OrderByClauseSyntax
        Inherits QueryClauseSyntax

        Friend _orderings as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), orderKeyword As InternalSyntax.KeywordSyntax, byKeyword As InternalSyntax.KeywordSyntax, orderings As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OrderByClauseSyntax(kind, errors, annotations, orderKeyword, byKeyword, if(orderings IsNot Nothing, orderings.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Order" keyword
        ''' </summary>
        Public ReadOnly Property OrderKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OrderByClauseSyntax)._orderKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OrderKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOrderKeyword(orderKeyword as SyntaxToken) As OrderByClauseSyntax
            return Update(orderKeyword, Me.ByKeyword, Me.Orderings)
        End Function

        ''' <summary>
        ''' The "By" keyword.
        ''' </summary>
        Public ReadOnly Property ByKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OrderByClauseSyntax)._byKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ByKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithByKeyword(byKeyword as SyntaxToken) As OrderByClauseSyntax
            return Update(Me.OrderKeyword, byKeyword, Me.Orderings)
        End Function

        ''' <summary>
        ''' The list of OrderExpression's to sort by.
        ''' </summary>
        Public ReadOnly Property Orderings As SeparatedSyntaxList(Of OrderingSyntax)
            Get
                Dim listNode = GetRed(_orderings, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of OrderingSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Orderings property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOrderings(orderings as SeparatedSyntaxList(Of OrderingSyntax)) As OrderByClauseSyntax
            return Update(Me.OrderKeyword, Me.ByKeyword, orderings)
        End Function

        Public Shadows Function AddOrderings(ParamArray items As OrderingSyntax()) As OrderByClauseSyntax
            Return Me.WithOrderings(Me.Orderings.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._orderings
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return GetRed(_orderings, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOrderByClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOrderByClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="orderKeyword">
        ''' The value for the OrderKeyword property.
        ''' </param>
        ''' <param name="byKeyword">
        ''' The value for the ByKeyword property.
        ''' </param>
        ''' <param name="orderings">
        ''' The value for the Orderings property.
        ''' </param>
        Public Function Update(orderKeyword As SyntaxToken, byKeyword As SyntaxToken, orderings As SeparatedSyntaxList(Of OrderingSyntax)) As OrderByClauseSyntax
            If orderKeyword <> Me.OrderKeyword OrElse byKeyword <> Me.ByKeyword OrElse orderings <> Me.Orderings Then
                Dim newNode = SyntaxFactory.OrderByClause(orderKeyword, byKeyword, orderings)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' An expression to order by, plus an optional ordering. The Kind indicates
    ''' whether to order in ascending or descending order.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AscendingOrdering"/></description></item>
    ''' <item><description><see cref="SyntaxKind.DescendingOrdering"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class OrderingSyntax
        Inherits VisualBasicSyntaxNode

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), expression As ExpressionSyntax, ascendingOrDescendingKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OrderingSyntax(kind, errors, annotations, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), ascendingOrDescendingKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The expression to sort by.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRedAtZero(_expression)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As OrderingSyntax
            return Update(Me.Kind, expression, Me.AscendingOrDescendingKeyword)
        End Function

        ''' <summary>
        ''' The "Ascending" or "Descending" keyword, if present. To determine whether to
        ''' sort in ascending or descending order, checking the Kind property is easier.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AscendingOrDescendingKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.OrderingSyntax)._ascendingOrDescendingKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AscendingOrDescendingKeyword property changed
        ''' to the specified value. Returns this instance if the specified value is the
        ''' same as the current value.
        ''' </summary>
        Public Shadows Function WithAscendingOrDescendingKeyword(ascendingOrDescendingKeyword as SyntaxToken) As OrderingSyntax
            return Update(Me.Kind, Me.Expression, ascendingOrDescendingKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitOrdering(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitOrdering(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="ascendingOrDescendingKeyword">
        ''' The value for the AscendingOrDescendingKeyword property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, expression As ExpressionSyntax, ascendingOrDescendingKeyword As SyntaxToken) As OrderingSyntax
            If kind <> Me.Kind OrElse expression IsNot Me.Expression OrElse ascendingOrDescendingKeyword <> Me.AscendingOrDescendingKeyword Then
                Dim newNode = SyntaxFactory.Ordering(kind, expression, ascendingOrDescendingKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the "Select" query operator.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SelectClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SelectClauseSyntax
        Inherits QueryClauseSyntax

        Friend _variables as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), selectKeyword As InternalSyntax.KeywordSyntax, variables As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SelectClauseSyntax(kind, errors, annotations, selectKeyword, if(variables IsNot Nothing, variables.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Select" keyword.
        ''' </summary>
        Public ReadOnly Property SelectKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SelectClauseSyntax)._selectKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SelectKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithSelectKeyword(selectKeyword as SyntaxToken) As SelectClauseSyntax
            return Update(selectKeyword, Me.Variables)
        End Function

        ''' <summary>
        ''' The list of expression range variables being defined by the Select query
        ''' operator.
        ''' </summary>
        Public ReadOnly Property Variables As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)
            Get
                Dim listNode = GetRed(_variables, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Variables property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithVariables(variables as SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)) As SelectClauseSyntax
            return Update(Me.SelectKeyword, variables)
        End Function

        Public Shadows Function AddVariables(ParamArray items As ExpressionRangeVariableSyntax()) As SelectClauseSyntax
            Return Me.WithVariables(Me.Variables.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._variables
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_variables, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSelectClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSelectClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="selectKeyword">
        ''' The value for the SelectKeyword property.
        ''' </param>
        ''' <param name="variables">
        ''' The value for the Variables property.
        ''' </param>
        Public Function Update(selectKeyword As SyntaxToken, variables As SeparatedSyntaxList(Of ExpressionRangeVariableSyntax)) As SelectClauseSyntax
            If selectKeyword <> Me.SelectKeyword OrElse variables <> Me.Variables Then
                Dim newNode = SyntaxFactory.SelectClause(selectKeyword, variables)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' This is the base class for all XML expression syntax nodes (XmlDocument and
    ''' XmlElement).
    ''' </summary>
    Public MustInherit Class XmlNodeSyntax
        Inherits ExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents an XML Document literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlDocument"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlDocumentSyntax
        Inherits XmlNodeSyntax

        Friend _declaration as XmlDeclarationSyntax
        Friend _precedingMisc as SyntaxNode
        Friend _root as XmlNodeSyntax
        Friend _followingMisc as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), declaration As XmlDeclarationSyntax, precedingMisc As SyntaxNode, root As XmlNodeSyntax, followingMisc As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDocumentSyntax(kind, errors, annotations, DirectCast(declaration.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationSyntax), if(precedingMisc IsNot Nothing, precedingMisc.Green, Nothing), DirectCast(root.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNodeSyntax), if(followingMisc IsNot Nothing, followingMisc.Green, Nothing)), Nothing, 0)
        End Sub

        Public ReadOnly Property Declaration As XmlDeclarationSyntax
            Get
                Return GetRedAtZero(_declaration)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Declaration property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDeclaration(declaration as XmlDeclarationSyntax) As XmlDocumentSyntax
            return Update(declaration, Me.PrecedingMisc, Me.Root, Me.FollowingMisc)
        End Function

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property PrecedingMisc As SyntaxList(Of XmlNodeSyntax)
            Get
                Dim listNode = GetRed(_precedingMisc, 1)
                Return new SyntaxList(Of XmlNodeSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the PrecedingMisc property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithPrecedingMisc(precedingMisc as SyntaxList(Of XmlNodeSyntax)) As XmlDocumentSyntax
            return Update(Me.Declaration, precedingMisc, Me.Root, Me.FollowingMisc)
        End Function

        Public Shadows Function AddPrecedingMisc(ParamArray items As XmlNodeSyntax()) As XmlDocumentSyntax
            Return Me.WithPrecedingMisc(Me.PrecedingMisc.AddRange(items))
        End Function

        Public ReadOnly Property Root As XmlNodeSyntax
            Get
                Return GetRed(_root, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Root property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithRoot(root as XmlNodeSyntax) As XmlDocumentSyntax
            return Update(Me.Declaration, Me.PrecedingMisc, root, Me.FollowingMisc)
        End Function

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property FollowingMisc As SyntaxList(Of XmlNodeSyntax)
            Get
                Dim listNode = GetRed(_followingMisc, 3)
                Return new SyntaxList(Of XmlNodeSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FollowingMisc property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithFollowingMisc(followingMisc as SyntaxList(Of XmlNodeSyntax)) As XmlDocumentSyntax
            return Update(Me.Declaration, Me.PrecedingMisc, Me.Root, followingMisc)
        End Function

        Public Shadows Function AddFollowingMisc(ParamArray items As XmlNodeSyntax()) As XmlDocumentSyntax
            Return Me.WithFollowingMisc(Me.FollowingMisc.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._declaration
                Case 1
                    Return Me._precedingMisc
                Case 2
                    Return Me._root
                Case 3
                    Return Me._followingMisc
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Declaration
                Case 1
                    Return GetRed(_precedingMisc, 1)
                Case 2
                    Return Me.Root
                Case 3
                    Return GetRed(_followingMisc, 3)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlDocument(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlDocument(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="declaration">
        ''' The value for the Declaration property.
        ''' </param>
        ''' <param name="precedingMisc">
        ''' The value for the PrecedingMisc property.
        ''' </param>
        ''' <param name="root">
        ''' The value for the Root property.
        ''' </param>
        ''' <param name="followingMisc">
        ''' The value for the FollowingMisc property.
        ''' </param>
        Public Function Update(declaration As XmlDeclarationSyntax, precedingMisc As SyntaxList(of XmlNodeSyntax), root As XmlNodeSyntax, followingMisc As SyntaxList(of XmlNodeSyntax)) As XmlDocumentSyntax
            If declaration IsNot Me.Declaration OrElse precedingMisc <> Me.PrecedingMisc OrElse root IsNot Me.Root OrElse followingMisc <> Me.FollowingMisc Then
                Dim newNode = SyntaxFactory.XmlDocument(declaration, precedingMisc, root, followingMisc)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the XML declaration prologue in an XML literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlDeclaration"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlDeclarationSyntax
        Inherits VisualBasicSyntaxNode

        Friend _version as XmlDeclarationOptionSyntax
        Friend _encoding as XmlDeclarationOptionSyntax
        Friend _standalone as XmlDeclarationOptionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanQuestionToken As InternalSyntax.PunctuationSyntax, xmlKeyword As InternalSyntax.KeywordSyntax, version As XmlDeclarationOptionSyntax, encoding As XmlDeclarationOptionSyntax, standalone As XmlDeclarationOptionSyntax, questionGreaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationSyntax(kind, errors, annotations, lessThanQuestionToken, xmlKeyword, DirectCast(version.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationOptionSyntax), if(encoding IsNot Nothing, DirectCast(encoding.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationOptionSyntax), Nothing), if(standalone IsNot Nothing, DirectCast(standalone.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationOptionSyntax), Nothing), questionGreaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanQuestionToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationSyntax)._lessThanQuestionToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanQuestionToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithLessThanQuestionToken(lessThanQuestionToken as SyntaxToken) As XmlDeclarationSyntax
            return Update(lessThanQuestionToken, Me.XmlKeyword, Me.Version, Me.Encoding, Me.Standalone, Me.QuestionGreaterThanToken)
        End Function

        Public ReadOnly Property XmlKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationSyntax)._xmlKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the XmlKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithXmlKeyword(xmlKeyword as SyntaxToken) As XmlDeclarationSyntax
            return Update(Me.LessThanQuestionToken, xmlKeyword, Me.Version, Me.Encoding, Me.Standalone, Me.QuestionGreaterThanToken)
        End Function

        Public ReadOnly Property Version As XmlDeclarationOptionSyntax
            Get
                Return GetRed(_version, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Version property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithVersion(version as XmlDeclarationOptionSyntax) As XmlDeclarationSyntax
            return Update(Me.LessThanQuestionToken, Me.XmlKeyword, version, Me.Encoding, Me.Standalone, Me.QuestionGreaterThanToken)
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Encoding As XmlDeclarationOptionSyntax
            Get
                Return GetRed(_encoding, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Encoding property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEncoding(encoding as XmlDeclarationOptionSyntax) As XmlDeclarationSyntax
            return Update(Me.LessThanQuestionToken, Me.XmlKeyword, Me.Version, encoding, Me.Standalone, Me.QuestionGreaterThanToken)
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Standalone As XmlDeclarationOptionSyntax
            Get
                Return GetRed(_standalone, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Standalone property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStandalone(standalone as XmlDeclarationOptionSyntax) As XmlDeclarationSyntax
            return Update(Me.LessThanQuestionToken, Me.XmlKeyword, Me.Version, Me.Encoding, standalone, Me.QuestionGreaterThanToken)
        End Function

        Public ReadOnly Property QuestionGreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationSyntax)._questionGreaterThanToken, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the QuestionGreaterThanToken property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithQuestionGreaterThanToken(questionGreaterThanToken as SyntaxToken) As XmlDeclarationSyntax
            return Update(Me.LessThanQuestionToken, Me.XmlKeyword, Me.Version, Me.Encoding, Me.Standalone, questionGreaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._version
                Case 3
                    Return Me._encoding
                Case 4
                    Return Me._standalone
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Version
                Case 3
                    Return Me.Encoding
                Case 4
                    Return Me.Standalone
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlDeclaration(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlDeclaration(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanQuestionToken">
        ''' The value for the LessThanQuestionToken property.
        ''' </param>
        ''' <param name="xmlKeyword">
        ''' The value for the XmlKeyword property.
        ''' </param>
        ''' <param name="version">
        ''' The value for the Version property.
        ''' </param>
        ''' <param name="encoding">
        ''' The value for the Encoding property.
        ''' </param>
        ''' <param name="standalone">
        ''' The value for the Standalone property.
        ''' </param>
        ''' <param name="questionGreaterThanToken">
        ''' The value for the QuestionGreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanQuestionToken As SyntaxToken, xmlKeyword As SyntaxToken, version As XmlDeclarationOptionSyntax, encoding As XmlDeclarationOptionSyntax, standalone As XmlDeclarationOptionSyntax, questionGreaterThanToken As SyntaxToken) As XmlDeclarationSyntax
            If lessThanQuestionToken <> Me.LessThanQuestionToken OrElse xmlKeyword <> Me.XmlKeyword OrElse version IsNot Me.Version OrElse encoding IsNot Me.Encoding OrElse standalone IsNot Me.Standalone OrElse questionGreaterThanToken <> Me.QuestionGreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlDeclaration(lessThanQuestionToken, xmlKeyword, version, encoding, standalone, questionGreaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML document prologue option - version, encoding, standalone or
    ''' whitespace in an XML literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlDeclarationOption"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlDeclarationOptionSyntax
        Inherits VisualBasicSyntaxNode

        Friend _value as XmlStringSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As InternalSyntax.XmlNameTokenSyntax, equals As InternalSyntax.PunctuationSyntax, value As XmlStringSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationOptionSyntax(kind, errors, annotations, name, equals, DirectCast(value.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlStringSyntax)), Nothing, 0)
        End Sub

        Public ReadOnly Property Name As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationOptionSyntax)._name, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as SyntaxToken) As XmlDeclarationOptionSyntax
            return Update(name, Me.Equals, Me.Value)
        End Function

        Public Shadows ReadOnly Property Equals As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlDeclarationOptionSyntax)._equals, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Equals property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithEquals(equals as SyntaxToken) As XmlDeclarationOptionSyntax
            return Update(Me.Name, equals, Me.Value)
        End Function

        Public ReadOnly Property Value As XmlStringSyntax
            Get
                Return GetRed(_value, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Value property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithValue(value as XmlStringSyntax) As XmlDeclarationOptionSyntax
            return Update(Me.Name, Me.Equals, value)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._value
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Value
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlDeclarationOption(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlDeclarationOption(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="equals">
        ''' The value for the Equals property.
        ''' </param>
        ''' <param name="value">
        ''' The value for the Value property.
        ''' </param>
        Public Function Update(name As SyntaxToken, equals As SyntaxToken, value As XmlStringSyntax) As XmlDeclarationOptionSyntax
            If name <> Me.Name OrElse equals <> Me.Equals OrElse value IsNot Me.Value Then
                Dim newNode = SyntaxFactory.XmlDeclarationOption(name, equals, value)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML element with content in an XML literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlElement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlElementSyntax
        Inherits XmlNodeSyntax

        Friend _startTag as XmlElementStartTagSyntax
        Friend _content as SyntaxNode
        Friend _endTag as XmlElementEndTagSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), startTag As XmlElementStartTagSyntax, content As SyntaxNode, endTag As XmlElementEndTagSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementSyntax(kind, errors, annotations, DirectCast(startTag.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementStartTagSyntax), if(content IsNot Nothing, content.Green, Nothing), DirectCast(endTag.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementEndTagSyntax)), Nothing, 0)
        End Sub

        Public ReadOnly Property StartTag As XmlElementStartTagSyntax
            Get
                Return GetRedAtZero(_startTag)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StartTag property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithStartTag(startTag as XmlElementStartTagSyntax) As XmlElementSyntax
            return Update(startTag, Me.Content, Me.EndTag)
        End Function

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Content As SyntaxList(Of XmlNodeSyntax)
            Get
                Dim listNode = GetRed(_content, 1)
                Return new SyntaxList(Of XmlNodeSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Content property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithContent(content as SyntaxList(Of XmlNodeSyntax)) As XmlElementSyntax
            return Update(Me.StartTag, content, Me.EndTag)
        End Function

        Public Shadows Function AddContent(ParamArray items As XmlNodeSyntax()) As XmlElementSyntax
            Return Me.WithContent(Me.Content.AddRange(items))
        End Function

        Public ReadOnly Property EndTag As XmlElementEndTagSyntax
            Get
                Return GetRed(_endTag, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndTag property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithEndTag(endTag as XmlElementEndTagSyntax) As XmlElementSyntax
            return Update(Me.StartTag, Me.Content, endTag)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._startTag
                Case 1
                    Return Me._content
                Case 2
                    Return Me._endTag
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.StartTag
                Case 1
                    Return GetRed(_content, 1)
                Case 2
                    Return Me.EndTag
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlElement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlElement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="startTag">
        ''' The value for the StartTag property.
        ''' </param>
        ''' <param name="content">
        ''' The value for the Content property.
        ''' </param>
        ''' <param name="endTag">
        ''' The value for the EndTag property.
        ''' </param>
        Public Function Update(startTag As XmlElementStartTagSyntax, content As SyntaxList(of XmlNodeSyntax), endTag As XmlElementEndTagSyntax) As XmlElementSyntax
            If startTag IsNot Me.StartTag OrElse content <> Me.Content OrElse endTag IsNot Me.EndTag Then
                Dim newNode = SyntaxFactory.XmlElement(startTag, content, endTag)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents Xml text.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlText"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlTextSyntax
        Inherits XmlNodeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), textTokens As GreenNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlTextSyntax(kind, errors, annotations, textTokens), Nothing, 0)
        End Sub

        ''' <summary>
        ''' A list of all the text tokens in the Xml text. This list always contains at
        ''' least one token.
        ''' </summary>
        Public ReadOnly Property TextTokens As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlTextSyntax)._textTokens
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TextTokens property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTextTokens(textTokens as SyntaxTokenList) As XmlTextSyntax
            return Update(textTokens)
        End Function

        Public Shadows Function AddTextTokens(ParamArray items As SyntaxToken()) As XmlTextSyntax
            Return Me.WithTextTokens(Me.TextTokens.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlText(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlText(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="textTokens">
        ''' The value for the TextTokens property.
        ''' </param>
        Public Function Update(textTokens As SyntaxTokenList) As XmlTextSyntax
            If textTokens <> Me.TextTokens Then
                Dim newNode = SyntaxFactory.XmlText(textTokens)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the start tag of an XML element of the form &lt;element&gt;.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlElementStartTag"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlElementStartTagSyntax
        Inherits XmlNodeSyntax

        Friend _name as XmlNodeSyntax
        Friend _attributes as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanToken As InternalSyntax.PunctuationSyntax, name As XmlNodeSyntax, attributes As SyntaxNode, greaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementStartTagSyntax(kind, errors, annotations, lessThanToken, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNodeSyntax), if(attributes IsNot Nothing, attributes.Green, Nothing), greaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementStartTagSyntax)._lessThanToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLessThanToken(lessThanToken as SyntaxToken) As XmlElementStartTagSyntax
            return Update(lessThanToken, Me.Name, Me.Attributes, Me.GreaterThanToken)
        End Function

        Public ReadOnly Property Name As XmlNodeSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNodeSyntax) As XmlElementStartTagSyntax
            return Update(Me.LessThanToken, name, Me.Attributes, Me.GreaterThanToken)
        End Function

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Attributes As SyntaxList(Of XmlNodeSyntax)
            Get
                Dim listNode = GetRed(_attributes, 2)
                Return new SyntaxList(Of XmlNodeSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Attributes property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAttributes(attributes as SyntaxList(Of XmlNodeSyntax)) As XmlElementStartTagSyntax
            return Update(Me.LessThanToken, Me.Name, attributes, Me.GreaterThanToken)
        End Function

        Public Shadows Function AddAttributes(ParamArray items As XmlNodeSyntax()) As XmlElementStartTagSyntax
            Return Me.WithAttributes(Me.Attributes.AddRange(items))
        End Function

        Public ReadOnly Property GreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementStartTagSyntax)._greaterThanToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GreaterThanToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithGreaterThanToken(greaterThanToken as SyntaxToken) As XmlElementStartTagSyntax
            return Update(Me.LessThanToken, Me.Name, Me.Attributes, greaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._name
                Case 2
                    Return Me._attributes
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Name
                Case 2
                    Return GetRed(_attributes, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlElementStartTag(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlElementStartTag(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanToken">
        ''' The value for the LessThanToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="attributes">
        ''' The value for the Attributes property.
        ''' </param>
        ''' <param name="greaterThanToken">
        ''' The value for the GreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanToken As SyntaxToken, name As XmlNodeSyntax, attributes As SyntaxList(of XmlNodeSyntax), greaterThanToken As SyntaxToken) As XmlElementStartTagSyntax
            If lessThanToken <> Me.LessThanToken OrElse name IsNot Me.Name OrElse attributes <> Me.Attributes OrElse greaterThanToken <> Me.GreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlElementStartTag(lessThanToken, name, attributes, greaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the end tag of an XML element of the form &lt;/element&gt;.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlElementEndTag"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlElementEndTagSyntax
        Inherits XmlNodeSyntax

        Friend _name as XmlNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanSlashToken As InternalSyntax.PunctuationSyntax, name As XmlNameSyntax, greaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementEndTagSyntax(kind, errors, annotations, lessThanSlashToken, if(name IsNot Nothing, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameSyntax), Nothing), greaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanSlashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementEndTagSyntax)._lessThanSlashToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanSlashToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithLessThanSlashToken(lessThanSlashToken as SyntaxToken) As XmlElementEndTagSyntax
            return Update(lessThanSlashToken, Me.Name, Me.GreaterThanToken)
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Name As XmlNameSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNameSyntax) As XmlElementEndTagSyntax
            return Update(Me.LessThanSlashToken, name, Me.GreaterThanToken)
        End Function

        Public ReadOnly Property GreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlElementEndTagSyntax)._greaterThanToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GreaterThanToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithGreaterThanToken(greaterThanToken as SyntaxToken) As XmlElementEndTagSyntax
            return Update(Me.LessThanSlashToken, Me.Name, greaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlElementEndTag(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlElementEndTag(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanSlashToken">
        ''' The value for the LessThanSlashToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="greaterThanToken">
        ''' The value for the GreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanSlashToken As SyntaxToken, name As XmlNameSyntax, greaterThanToken As SyntaxToken) As XmlElementEndTagSyntax
            If lessThanSlashToken <> Me.LessThanSlashToken OrElse name IsNot Me.Name OrElse greaterThanToken <> Me.GreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlElementEndTag(lessThanSlashToken, name, greaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an empty XML element of the form &lt;element /&gt;
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlEmptyElement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlEmptyElementSyntax
        Inherits XmlNodeSyntax

        Friend _name as XmlNodeSyntax
        Friend _attributes as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanToken As InternalSyntax.PunctuationSyntax, name As XmlNodeSyntax, attributes As SyntaxNode, slashGreaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlEmptyElementSyntax(kind, errors, annotations, lessThanToken, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNodeSyntax), if(attributes IsNot Nothing, attributes.Green, Nothing), slashGreaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlEmptyElementSyntax)._lessThanToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLessThanToken(lessThanToken as SyntaxToken) As XmlEmptyElementSyntax
            return Update(lessThanToken, Me.Name, Me.Attributes, Me.SlashGreaterThanToken)
        End Function

        Public ReadOnly Property Name As XmlNodeSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNodeSyntax) As XmlEmptyElementSyntax
            return Update(Me.LessThanToken, name, Me.Attributes, Me.SlashGreaterThanToken)
        End Function

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Attributes As SyntaxList(Of XmlNodeSyntax)
            Get
                Dim listNode = GetRed(_attributes, 2)
                Return new SyntaxList(Of XmlNodeSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Attributes property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAttributes(attributes as SyntaxList(Of XmlNodeSyntax)) As XmlEmptyElementSyntax
            return Update(Me.LessThanToken, Me.Name, attributes, Me.SlashGreaterThanToken)
        End Function

        Public Shadows Function AddAttributes(ParamArray items As XmlNodeSyntax()) As XmlEmptyElementSyntax
            Return Me.WithAttributes(Me.Attributes.AddRange(items))
        End Function

        Public ReadOnly Property SlashGreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlEmptyElementSyntax)._slashGreaterThanToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SlashGreaterThanToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSlashGreaterThanToken(slashGreaterThanToken as SyntaxToken) As XmlEmptyElementSyntax
            return Update(Me.LessThanToken, Me.Name, Me.Attributes, slashGreaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._name
                Case 2
                    Return Me._attributes
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Name
                Case 2
                    Return GetRed(_attributes, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlEmptyElement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlEmptyElement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanToken">
        ''' The value for the LessThanToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="attributes">
        ''' The value for the Attributes property.
        ''' </param>
        ''' <param name="slashGreaterThanToken">
        ''' The value for the SlashGreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanToken As SyntaxToken, name As XmlNodeSyntax, attributes As SyntaxList(of XmlNodeSyntax), slashGreaterThanToken As SyntaxToken) As XmlEmptyElementSyntax
            If lessThanToken <> Me.LessThanToken OrElse name IsNot Me.Name OrElse attributes <> Me.Attributes OrElse slashGreaterThanToken <> Me.SlashGreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlEmptyElement(lessThanToken, name, attributes, slashGreaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML attribute in an XML literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlAttribute"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlAttributeSyntax
        Inherits BaseXmlAttributeSyntax

        Friend _name as XmlNodeSyntax
        Friend _value as XmlNodeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As XmlNodeSyntax, equalsToken As InternalSyntax.PunctuationSyntax, value As XmlNodeSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlAttributeSyntax(kind, errors, annotations, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNodeSyntax), equalsToken, DirectCast(value.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNodeSyntax)), Nothing, 0)
        End Sub

        Public ReadOnly Property Name As XmlNodeSyntax
            Get
                Return GetRedAtZero(_name)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNodeSyntax) As XmlAttributeSyntax
            return Update(name, Me.EqualsToken, Me.Value)
        End Function

        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlAttributeSyntax)._equalsToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As XmlAttributeSyntax
            return Update(Me.Name, equalsToken, Me.Value)
        End Function

        Public ReadOnly Property Value As XmlNodeSyntax
            Get
                Return GetRed(_value, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Value property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithValue(value as XmlNodeSyntax) As XmlAttributeSyntax
            return Update(Me.Name, Me.EqualsToken, value)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._name
                Case 2
                    Return Me._value
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Name
                Case 2
                    Return Me.Value
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlAttribute(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlAttribute(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        ''' <param name="value">
        ''' The value for the Value property.
        ''' </param>
        Public Function Update(name As XmlNodeSyntax, equalsToken As SyntaxToken, value As XmlNodeSyntax) As XmlAttributeSyntax
            If name IsNot Me.Name OrElse equalsToken <> Me.EqualsToken OrElse value IsNot Me.Value Then
                Dim newNode = SyntaxFactory.XmlAttribute(name, equalsToken, value)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML attribute in an XML literal expression.
    ''' </summary>
    Public MustInherit Class BaseXmlAttributeSyntax
        Inherits XmlNodeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents a string of XML characters embedded as the content of an XML
    ''' element.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlString"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlStringSyntax
        Inherits XmlNodeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), startQuoteToken As InternalSyntax.PunctuationSyntax, textTokens As GreenNode, endQuoteToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlStringSyntax(kind, errors, annotations, startQuoteToken, textTokens, endQuoteToken), Nothing, 0)
        End Sub

        Public ReadOnly Property StartQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlStringSyntax)._startQuoteToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StartQuoteToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithStartQuoteToken(startQuoteToken as SyntaxToken) As XmlStringSyntax
            return Update(startQuoteToken, Me.TextTokens, Me.EndQuoteToken)
        End Function

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property TextTokens As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlStringSyntax)._textTokens
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TextTokens property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTextTokens(textTokens as SyntaxTokenList) As XmlStringSyntax
            return Update(Me.StartQuoteToken, textTokens, Me.EndQuoteToken)
        End Function

        Public Shadows Function AddTextTokens(ParamArray items As SyntaxToken()) As XmlStringSyntax
            Return Me.WithTextTokens(Me.TextTokens.AddRange(items))
        End Function

        Public ReadOnly Property EndQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlStringSyntax)._endQuoteToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndQuoteToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndQuoteToken(endQuoteToken as SyntaxToken) As XmlStringSyntax
            return Update(Me.StartQuoteToken, Me.TextTokens, endQuoteToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlString(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlString(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="startQuoteToken">
        ''' The value for the StartQuoteToken property.
        ''' </param>
        ''' <param name="textTokens">
        ''' The value for the TextTokens property.
        ''' </param>
        ''' <param name="endQuoteToken">
        ''' The value for the EndQuoteToken property.
        ''' </param>
        Public Function Update(startQuoteToken As SyntaxToken, textTokens As SyntaxTokenList, endQuoteToken As SyntaxToken) As XmlStringSyntax
            If startQuoteToken <> Me.StartQuoteToken OrElse textTokens <> Me.TextTokens OrElse endQuoteToken <> Me.EndQuoteToken Then
                Dim newNode = SyntaxFactory.XmlString(startQuoteToken, textTokens, endQuoteToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML name of the form 'name' appearing in GetXmlNamespace().
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlPrefixName"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlPrefixNameSyntax
        Inherits XmlNodeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As InternalSyntax.XmlNameTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlPrefixNameSyntax(kind, errors, annotations, name), Nothing, 0)
        End Sub

        Public ReadOnly Property Name As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlPrefixNameSyntax)._name, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as SyntaxToken) As XmlPrefixNameSyntax
            return Update(name)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlPrefixName(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlPrefixName(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        Public Function Update(name As SyntaxToken) As XmlPrefixNameSyntax
            If name <> Me.Name Then
                Dim newNode = SyntaxFactory.XmlPrefixName(name)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML name of the form 'name' or 'namespace:name' appearing in
    ''' source as part of an XML literal or member access expression or an XML
    ''' namespace import clause.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlName"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlNameSyntax
        Inherits XmlNodeSyntax

        Friend _prefix as XmlPrefixSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), prefix As XmlPrefixSyntax, localName As InternalSyntax.XmlNameTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameSyntax(kind, errors, annotations, if(prefix IsNot Nothing, DirectCast(prefix.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlPrefixSyntax), Nothing), localName), Nothing, 0)
        End Sub

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Prefix As XmlPrefixSyntax
            Get
                Return GetRedAtZero(_prefix)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Prefix property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithPrefix(prefix as XmlPrefixSyntax) As XmlNameSyntax
            return Update(prefix, Me.LocalName)
        End Function

        Public ReadOnly Property LocalName As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameSyntax)._localName, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LocalName property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLocalName(localName as SyntaxToken) As XmlNameSyntax
            return Update(Me.Prefix, localName)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._prefix
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Prefix
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlName(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlName(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="prefix">
        ''' The value for the Prefix property.
        ''' </param>
        ''' <param name="localName">
        ''' The value for the LocalName property.
        ''' </param>
        Public Function Update(prefix As XmlPrefixSyntax, localName As SyntaxToken) As XmlNameSyntax
            If prefix IsNot Me.Prefix OrElse localName <> Me.LocalName Then
                Dim newNode = SyntaxFactory.XmlName(prefix, localName)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML name of the form &lt;xml-name&gt; appearing in source as part
    ''' of an XML literal or member access expression or an XML namespace import
    ''' clause.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlBracketedName"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlBracketedNameSyntax
        Inherits XmlNodeSyntax

        Friend _name as XmlNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanToken As InternalSyntax.PunctuationSyntax, name As XmlNameSyntax, greaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlBracketedNameSyntax(kind, errors, annotations, lessThanToken, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameSyntax), greaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlBracketedNameSyntax)._lessThanToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLessThanToken(lessThanToken as SyntaxToken) As XmlBracketedNameSyntax
            return Update(lessThanToken, Me.Name, Me.GreaterThanToken)
        End Function

        Public ReadOnly Property Name As XmlNameSyntax
            Get
                Return GetRed(_name, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNameSyntax) As XmlBracketedNameSyntax
            return Update(Me.LessThanToken, name, Me.GreaterThanToken)
        End Function

        Public ReadOnly Property GreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlBracketedNameSyntax)._greaterThanToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GreaterThanToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithGreaterThanToken(greaterThanToken as SyntaxToken) As XmlBracketedNameSyntax
            return Update(Me.LessThanToken, Me.Name, greaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._name
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Name
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlBracketedName(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlBracketedName(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanToken">
        ''' The value for the LessThanToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="greaterThanToken">
        ''' The value for the GreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanToken As SyntaxToken, name As XmlNameSyntax, greaterThanToken As SyntaxToken) As XmlBracketedNameSyntax
            If lessThanToken <> Me.LessThanToken OrElse name IsNot Me.Name OrElse greaterThanToken <> Me.GreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlBracketedName(lessThanToken, name, greaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML namespace prefix of the form 'prefix:' as in xml:ns="".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlPrefix"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlPrefixSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As InternalSyntax.XmlNameTokenSyntax, colonToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlPrefixSyntax(kind, errors, annotations, name, colonToken), Nothing, 0)
        End Sub

        Public ReadOnly Property Name As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlPrefixSyntax)._name, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as SyntaxToken) As XmlPrefixSyntax
            return Update(name, Me.ColonToken)
        End Function

        Public ReadOnly Property ColonToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlPrefixSyntax)._colonToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ColonToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithColonToken(colonToken as SyntaxToken) As XmlPrefixSyntax
            return Update(Me.Name, colonToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlPrefix(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlPrefix(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="colonToken">
        ''' The value for the ColonToken property.
        ''' </param>
        Public Function Update(name As SyntaxToken, colonToken As SyntaxToken) As XmlPrefixSyntax
            If name <> Me.Name OrElse colonToken <> Me.ColonToken Then
                Dim newNode = SyntaxFactory.XmlPrefix(name, colonToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML comment of the form &lt;!-- Comment --&gt; appearing in an
    ''' XML literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlComment"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlCommentSyntax
        Inherits XmlNodeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanExclamationMinusMinusToken As InternalSyntax.PunctuationSyntax, textTokens As GreenNode, minusMinusGreaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCommentSyntax(kind, errors, annotations, lessThanExclamationMinusMinusToken, textTokens, minusMinusGreaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanExclamationMinusMinusToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCommentSyntax)._lessThanExclamationMinusMinusToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanExclamationMinusMinusToken property
        ''' changed to the specified value. Returns this instance if the specified value is
        ''' the same as the current value.
        ''' </summary>
        Public Shadows Function WithLessThanExclamationMinusMinusToken(lessThanExclamationMinusMinusToken as SyntaxToken) As XmlCommentSyntax
            return Update(lessThanExclamationMinusMinusToken, Me.TextTokens, Me.MinusMinusGreaterThanToken)
        End Function

        Public ReadOnly Property TextTokens As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCommentSyntax)._textTokens
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TextTokens property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTextTokens(textTokens as SyntaxTokenList) As XmlCommentSyntax
            return Update(Me.LessThanExclamationMinusMinusToken, textTokens, Me.MinusMinusGreaterThanToken)
        End Function

        Public Shadows Function AddTextTokens(ParamArray items As SyntaxToken()) As XmlCommentSyntax
            Return Me.WithTextTokens(Me.TextTokens.AddRange(items))
        End Function

        Public ReadOnly Property MinusMinusGreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCommentSyntax)._minusMinusGreaterThanToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the MinusMinusGreaterThanToken property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithMinusMinusGreaterThanToken(minusMinusGreaterThanToken as SyntaxToken) As XmlCommentSyntax
            return Update(Me.LessThanExclamationMinusMinusToken, Me.TextTokens, minusMinusGreaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlComment(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlComment(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanExclamationMinusMinusToken">
        ''' The value for the LessThanExclamationMinusMinusToken property.
        ''' </param>
        ''' <param name="textTokens">
        ''' The value for the TextTokens property.
        ''' </param>
        ''' <param name="minusMinusGreaterThanToken">
        ''' The value for the MinusMinusGreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanExclamationMinusMinusToken As SyntaxToken, textTokens As SyntaxTokenList, minusMinusGreaterThanToken As SyntaxToken) As XmlCommentSyntax
            If lessThanExclamationMinusMinusToken <> Me.LessThanExclamationMinusMinusToken OrElse textTokens <> Me.TextTokens OrElse minusMinusGreaterThanToken <> Me.MinusMinusGreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlComment(lessThanExclamationMinusMinusToken, textTokens, minusMinusGreaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML processing instruction of the form '&lt;? XMLProcessingTarget
    ''' XMLProcessingValue ?&gt;'.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlProcessingInstruction"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlProcessingInstructionSyntax
        Inherits XmlNodeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanQuestionToken As InternalSyntax.PunctuationSyntax, name As InternalSyntax.XmlNameTokenSyntax, textTokens As GreenNode, questionGreaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlProcessingInstructionSyntax(kind, errors, annotations, lessThanQuestionToken, name, textTokens, questionGreaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanQuestionToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlProcessingInstructionSyntax)._lessThanQuestionToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanQuestionToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithLessThanQuestionToken(lessThanQuestionToken as SyntaxToken) As XmlProcessingInstructionSyntax
            return Update(lessThanQuestionToken, Me.Name, Me.TextTokens, Me.QuestionGreaterThanToken)
        End Function

        Public ReadOnly Property Name As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlProcessingInstructionSyntax)._name, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as SyntaxToken) As XmlProcessingInstructionSyntax
            return Update(Me.LessThanQuestionToken, name, Me.TextTokens, Me.QuestionGreaterThanToken)
        End Function

        Public ReadOnly Property TextTokens As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlProcessingInstructionSyntax)._textTokens
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(2), Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TextTokens property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTextTokens(textTokens as SyntaxTokenList) As XmlProcessingInstructionSyntax
            return Update(Me.LessThanQuestionToken, Me.Name, textTokens, Me.QuestionGreaterThanToken)
        End Function

        Public Shadows Function AddTextTokens(ParamArray items As SyntaxToken()) As XmlProcessingInstructionSyntax
            Return Me.WithTextTokens(Me.TextTokens.AddRange(items))
        End Function

        Public ReadOnly Property QuestionGreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlProcessingInstructionSyntax)._questionGreaterThanToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the QuestionGreaterThanToken property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithQuestionGreaterThanToken(questionGreaterThanToken as SyntaxToken) As XmlProcessingInstructionSyntax
            return Update(Me.LessThanQuestionToken, Me.Name, Me.TextTokens, questionGreaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlProcessingInstruction(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlProcessingInstruction(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanQuestionToken">
        ''' The value for the LessThanQuestionToken property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="textTokens">
        ''' The value for the TextTokens property.
        ''' </param>
        ''' <param name="questionGreaterThanToken">
        ''' The value for the QuestionGreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanQuestionToken As SyntaxToken, name As SyntaxToken, textTokens As SyntaxTokenList, questionGreaterThanToken As SyntaxToken) As XmlProcessingInstructionSyntax
            If lessThanQuestionToken <> Me.LessThanQuestionToken OrElse name <> Me.Name OrElse textTokens <> Me.TextTokens OrElse questionGreaterThanToken <> Me.QuestionGreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlProcessingInstruction(lessThanQuestionToken, name, textTokens, questionGreaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an XML CDATA section in an XML literal expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlCDataSection"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlCDataSectionSyntax
        Inherits XmlNodeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), beginCDataToken As InternalSyntax.PunctuationSyntax, textTokens As GreenNode, endCDataToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCDataSectionSyntax(kind, errors, annotations, beginCDataToken, textTokens, endCDataToken), Nothing, 0)
        End Sub

        Public ReadOnly Property BeginCDataToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCDataSectionSyntax)._beginCDataToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the BeginCDataToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithBeginCDataToken(beginCDataToken as SyntaxToken) As XmlCDataSectionSyntax
            return Update(beginCDataToken, Me.TextTokens, Me.EndCDataToken)
        End Function

        Public ReadOnly Property TextTokens As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCDataSectionSyntax)._textTokens
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TextTokens property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTextTokens(textTokens as SyntaxTokenList) As XmlCDataSectionSyntax
            return Update(Me.BeginCDataToken, textTokens, Me.EndCDataToken)
        End Function

        Public Shadows Function AddTextTokens(ParamArray items As SyntaxToken()) As XmlCDataSectionSyntax
            Return Me.WithTextTokens(Me.TextTokens.AddRange(items))
        End Function

        Public ReadOnly Property EndCDataToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCDataSectionSyntax)._endCDataToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndCDataToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndCDataToken(endCDataToken as SyntaxToken) As XmlCDataSectionSyntax
            return Update(Me.BeginCDataToken, Me.TextTokens, endCDataToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlCDataSection(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlCDataSection(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="beginCDataToken">
        ''' The value for the BeginCDataToken property.
        ''' </param>
        ''' <param name="textTokens">
        ''' The value for the TextTokens property.
        ''' </param>
        ''' <param name="endCDataToken">
        ''' The value for the EndCDataToken property.
        ''' </param>
        Public Function Update(beginCDataToken As SyntaxToken, textTokens As SyntaxTokenList, endCDataToken As SyntaxToken) As XmlCDataSectionSyntax
            If beginCDataToken <> Me.BeginCDataToken OrElse textTokens <> Me.TextTokens OrElse endCDataToken <> Me.EndCDataToken Then
                Dim newNode = SyntaxFactory.XmlCDataSection(beginCDataToken, textTokens, endCDataToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an embedded expression in an XML literal e.g. '&lt;name&gt;&lt;%=
    ''' obj.Name =%&gt;&lt;/name&gt;'.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlEmbeddedExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlEmbeddedExpressionSyntax
        Inherits XmlNodeSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), lessThanPercentEqualsToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax, percentGreaterThanToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlEmbeddedExpressionSyntax(kind, errors, annotations, lessThanPercentEqualsToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), percentGreaterThanToken), Nothing, 0)
        End Sub

        Public ReadOnly Property LessThanPercentEqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlEmbeddedExpressionSyntax)._lessThanPercentEqualsToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LessThanPercentEqualsToken property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithLessThanPercentEqualsToken(lessThanPercentEqualsToken as SyntaxToken) As XmlEmbeddedExpressionSyntax
            return Update(lessThanPercentEqualsToken, Me.Expression, Me.PercentGreaterThanToken)
        End Function

        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As XmlEmbeddedExpressionSyntax
            return Update(Me.LessThanPercentEqualsToken, expression, Me.PercentGreaterThanToken)
        End Function

        Public ReadOnly Property PercentGreaterThanToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlEmbeddedExpressionSyntax)._percentGreaterThanToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the PercentGreaterThanToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithPercentGreaterThanToken(percentGreaterThanToken as SyntaxToken) As XmlEmbeddedExpressionSyntax
            return Update(Me.LessThanPercentEqualsToken, Me.Expression, percentGreaterThanToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlEmbeddedExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlEmbeddedExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="lessThanPercentEqualsToken">
        ''' The value for the LessThanPercentEqualsToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="percentGreaterThanToken">
        ''' The value for the PercentGreaterThanToken property.
        ''' </param>
        Public Function Update(lessThanPercentEqualsToken As SyntaxToken, expression As ExpressionSyntax, percentGreaterThanToken As SyntaxToken) As XmlEmbeddedExpressionSyntax
            If lessThanPercentEqualsToken <> Me.LessThanPercentEqualsToken OrElse expression IsNot Me.Expression OrElse percentGreaterThanToken <> Me.PercentGreaterThanToken Then
                Dim newNode = SyntaxFactory.XmlEmbeddedExpression(lessThanPercentEqualsToken, expression, percentGreaterThanToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Abstract node class that represents the textual description of a type, possibly
    ''' include generic type arguments, qualified names, array specifiers, nullable
    ''' specifier and the like.
    ''' </summary>
    Public MustInherit Class TypeSyntax
        Inherits ExpressionSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents an array type, such as "A() or "A(,)", without bounds specified for
    ''' the array.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ArrayType"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ArrayTypeSyntax
        Inherits TypeSyntax

        Friend _elementType as TypeSyntax
        Friend _rankSpecifiers as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elementType As TypeSyntax, rankSpecifiers As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ArrayTypeSyntax(kind, errors, annotations, DirectCast(elementType.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), if(rankSpecifiers IsNot Nothing, rankSpecifiers.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The type of the elements of the array.
        ''' </summary>
        Public ReadOnly Property ElementType As TypeSyntax
            Get
                Return GetRedAtZero(_elementType)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElementType property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElementType(elementType as TypeSyntax) As ArrayTypeSyntax
            return Update(elementType, Me.RankSpecifiers)
        End Function

        ''' <summary>
        ''' Represents the list of "()" or "(,,)" modifiers on the array type.
        ''' </summary>
        Public ReadOnly Property RankSpecifiers As SyntaxList(Of ArrayRankSpecifierSyntax)
            Get
                Dim listNode = GetRed(_rankSpecifiers, 1)
                Return new SyntaxList(Of ArrayRankSpecifierSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the RankSpecifiers property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithRankSpecifiers(rankSpecifiers as SyntaxList(Of ArrayRankSpecifierSyntax)) As ArrayTypeSyntax
            return Update(Me.ElementType, rankSpecifiers)
        End Function

        Public Shadows Function AddRankSpecifiers(ParamArray items As ArrayRankSpecifierSyntax()) As ArrayTypeSyntax
            Return Me.WithRankSpecifiers(Me.RankSpecifiers.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._elementType
                Case 1
                    Return Me._rankSpecifiers
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ElementType
                Case 1
                    Return GetRed(_rankSpecifiers, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitArrayType(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitArrayType(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elementType">
        ''' The value for the ElementType property.
        ''' </param>
        ''' <param name="rankSpecifiers">
        ''' The value for the RankSpecifiers property.
        ''' </param>
        Public Function Update(elementType As TypeSyntax, rankSpecifiers As SyntaxList(of ArrayRankSpecifierSyntax)) As ArrayTypeSyntax
            If elementType IsNot Me.ElementType OrElse rankSpecifiers <> Me.RankSpecifiers Then
                Dim newNode = SyntaxFactory.ArrayType(elementType, rankSpecifiers)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A type name that represents a nullable type, such as "Integer?".
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NullableType"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NullableTypeSyntax
        Inherits TypeSyntax

        Friend _elementType as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), elementType As TypeSyntax, questionMarkToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NullableTypeSyntax(kind, errors, annotations, DirectCast(elementType.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), questionMarkToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The kind of type that is this type is a nullable of. Cannot be an array type or
        ''' a nullable type.
        ''' </summary>
        Public ReadOnly Property ElementType As TypeSyntax
            Get
                Return GetRedAtZero(_elementType)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElementType property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElementType(elementType as TypeSyntax) As NullableTypeSyntax
            return Update(elementType, Me.QuestionMarkToken)
        End Function

        ''' <summary>
        ''' The "?" token.
        ''' </summary>
        Public ReadOnly Property QuestionMarkToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NullableTypeSyntax)._questionMarkToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the QuestionMarkToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithQuestionMarkToken(questionMarkToken as SyntaxToken) As NullableTypeSyntax
            return Update(Me.ElementType, questionMarkToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._elementType
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.ElementType
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNullableType(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNullableType(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="elementType">
        ''' The value for the ElementType property.
        ''' </param>
        ''' <param name="questionMarkToken">
        ''' The value for the QuestionMarkToken property.
        ''' </param>
        Public Function Update(elementType As TypeSyntax, questionMarkToken As SyntaxToken) As NullableTypeSyntax
            If elementType IsNot Me.ElementType OrElse questionMarkToken <> Me.QuestionMarkToken Then
                Dim newNode = SyntaxFactory.NullableType(elementType, questionMarkToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an occurrence of a Visual Basic built-in type such as Integer or
    ''' String in source code.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.PredefinedType"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class PredefinedTypeSyntax
        Inherits TypeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), keyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PredefinedTypeSyntax(kind, errors, annotations, keyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The keyword that was used to describe the built-in type.
        ''' </summary>
        Public ReadOnly Property Keyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.PredefinedTypeSyntax)._keyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Keyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithKeyword(keyword as SyntaxToken) As PredefinedTypeSyntax
            return Update(keyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitPredefinedType(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitPredefinedType(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="keyword">
        ''' The value for the Keyword property.
        ''' </param>
        Public Function Update(keyword As SyntaxToken) As PredefinedTypeSyntax
            If keyword <> Me.Keyword Then
                Dim newNode = SyntaxFactory.PredefinedType(keyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Abstract node class that represents a name, possibly include generic arguments
    ''' and qualified names.
    ''' </summary>
    Public MustInherit Class NameSyntax
        Inherits TypeSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Abstract node class that represents a name, possibly include generic arguments.
    ''' </summary>
    Public MustInherit Class SimpleNameSyntax
        Inherits NameSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The identifier in the name.
        ''' </summary>
        Public ReadOnly Property Identifier As SyntaxToken
            Get
                Return Me.GetIdentifierCore()
            End Get
        End Property

        Friend Overridable Function GetIdentifierCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleNameSyntax)._identifier, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithIdentifier(identifier As SyntaxToken) As SimpleNameSyntax
            Return WithIdentifierCore(identifier)
        End Function
        Friend MustOverride Function WithIdentifierCore(identifier As SyntaxToken) As SimpleNameSyntax

    End Class

    ''' <summary>
    ''' Represents a type name consisting of a single identifier (which might include
    ''' brackets or a type character).
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.IdentifierName"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class IdentifierNameSyntax
        Inherits SimpleNameSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As InternalSyntax.IdentifierTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax(kind, errors, annotations, identifier), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The identifier in the name.
        ''' </summary>
        Public Shadows ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax)._identifier, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetIdentifierCore() As SyntaxToken
            Return Me.Identifier
        End Function

        Friend Overrides Function WithIdentifierCore(identifier As SyntaxToken) As SimpleNameSyntax
            Return WithIdentifier(identifier)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As IdentifierNameSyntax
            return Update(identifier)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitIdentifierName(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitIdentifierName(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        Public Function Update(identifier As SyntaxToken) As IdentifierNameSyntax
            If identifier <> Me.Identifier Then
                Dim newNode = SyntaxFactory.IdentifierName(identifier)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a simple type name with one or more generic arguments, such as "X(Of
    ''' Y, Z).
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GenericName"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GenericNameSyntax
        Inherits SimpleNameSyntax

        Friend _typeArgumentList as TypeArgumentListSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), identifier As InternalSyntax.IdentifierTokenSyntax, typeArgumentList As TypeArgumentListSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GenericNameSyntax(kind, errors, annotations, identifier, DirectCast(typeArgumentList.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeArgumentListSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The identifier in the name.
        ''' </summary>
        Public Shadows ReadOnly Property Identifier As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GenericNameSyntax)._identifier, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetIdentifierCore() As SyntaxToken
            Return Me.Identifier
        End Function

        Friend Overrides Function WithIdentifierCore(identifier As SyntaxToken) As SimpleNameSyntax
            Return WithIdentifier(identifier)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the Identifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIdentifier(identifier as SyntaxToken) As GenericNameSyntax
            return Update(identifier, Me.TypeArgumentList)
        End Function

        ''' <summary>
        ''' The generic argument list.
        ''' </summary>
        Public ReadOnly Property TypeArgumentList As TypeArgumentListSyntax
            Get
                Return GetRed(_typeArgumentList, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TypeArgumentList property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithTypeArgumentList(typeArgumentList as TypeArgumentListSyntax) As GenericNameSyntax
            return Update(Me.Identifier, typeArgumentList)
        End Function

        Public Shadows Function AddTypeArgumentListArguments(ParamArray items As TypeSyntax()) As GenericNameSyntax
            Dim _child = If(Me.TypeArgumentList IsNot Nothing, Me.TypeArgumentList, SyntaxFactory.TypeArgumentList())
            Return Me.WithTypeArgumentList(_child.AddArguments(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._typeArgumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.TypeArgumentList
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGenericName(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGenericName(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="identifier">
        ''' The value for the Identifier property.
        ''' </param>
        ''' <param name="typeArgumentList">
        ''' The value for the TypeArgumentList property.
        ''' </param>
        Public Function Update(identifier As SyntaxToken, typeArgumentList As TypeArgumentListSyntax) As GenericNameSyntax
            If identifier <> Me.Identifier OrElse typeArgumentList IsNot Me.TypeArgumentList Then
                Dim newNode = SyntaxFactory.GenericName(identifier, typeArgumentList)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a qualified type name, for example X.Y or X(Of Z).Y.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.QualifiedName"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class QualifiedNameSyntax
        Inherits NameSyntax

        Friend _left as NameSyntax
        Friend _right as SimpleNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), left As NameSyntax, dotToken As InternalSyntax.PunctuationSyntax, right As SimpleNameSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.QualifiedNameSyntax(kind, errors, annotations, DirectCast(left.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameSyntax), dotToken, DirectCast(right.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleNameSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The part of the name that appears to the left of the dot. This can itself be
        ''' any name.
        ''' </summary>
        Public ReadOnly Property Left As NameSyntax
            Get
                Return GetRedAtZero(_left)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Left property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLeft(left as NameSyntax) As QualifiedNameSyntax
            return Update(left, Me.DotToken, Me.Right)
        End Function

        ''' <summary>
        ''' The "." token that separates the names.
        ''' </summary>
        Public ReadOnly Property DotToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.QualifiedNameSyntax)._dotToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DotToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDotToken(dotToken as SyntaxToken) As QualifiedNameSyntax
            return Update(Me.Left, dotToken, Me.Right)
        End Function

        ''' <summary>
        ''' The part of the name that appears to the right of the dot. This must be a
        ''' simple identifier.
        ''' </summary>
        Public ReadOnly Property Right As SimpleNameSyntax
            Get
                Return GetRed(_right, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Right property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithRight(right as SimpleNameSyntax) As QualifiedNameSyntax
            return Update(Me.Left, Me.DotToken, right)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._left
                Case 2
                    Return Me._right
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Left
                Case 2
                    Return Me.Right
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitQualifiedName(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitQualifiedName(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="left">
        ''' The value for the Left property.
        ''' </param>
        ''' <param name="dotToken">
        ''' The value for the DotToken property.
        ''' </param>
        ''' <param name="right">
        ''' The value for the Right property.
        ''' </param>
        Public Function Update(left As NameSyntax, dotToken As SyntaxToken, right As SimpleNameSyntax) As QualifiedNameSyntax
            If left IsNot Me.Left OrElse dotToken <> Me.DotToken OrElse right IsNot Me.Right Then
                Dim newNode = SyntaxFactory.QualifiedName(left, dotToken, right)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a name in the global namespace.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.GlobalName"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class GlobalNameSyntax
        Inherits NameSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), globalKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GlobalNameSyntax(kind, errors, annotations, globalKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Global" keyword.
        ''' </summary>
        Public ReadOnly Property GlobalKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.GlobalNameSyntax)._globalKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the GlobalKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithGlobalKeyword(globalKeyword as SyntaxToken) As GlobalNameSyntax
            return Update(globalKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitGlobalName(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitGlobalName(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="globalKeyword">
        ''' The value for the GlobalKeyword property.
        ''' </param>
        Public Function Update(globalKeyword As SyntaxToken) As GlobalNameSyntax
            If globalKeyword <> Me.GlobalKeyword Then
                Dim newNode = SyntaxFactory.GlobalName(globalKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a parenthesized list of generic type arguments.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.TypeArgumentList"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class TypeArgumentListSyntax
        Inherits VisualBasicSyntaxNode

        Friend _arguments as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, ofKeyword As InternalSyntax.KeywordSyntax, arguments As SyntaxNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeArgumentListSyntax(kind, errors, annotations, openParenToken, ofKeyword, if(arguments IsNot Nothing, arguments.Green, Nothing), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeArgumentListSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As TypeArgumentListSyntax
            return Update(openParenToken, Me.OfKeyword, Me.Arguments, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "Of" keyword.
        ''' </summary>
        Public ReadOnly Property OfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeArgumentListSyntax)._ofKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOfKeyword(ofKeyword as SyntaxToken) As TypeArgumentListSyntax
            return Update(Me.OpenParenToken, ofKeyword, Me.Arguments, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' A list of all the type arguments.
        ''' </summary>
        Public ReadOnly Property Arguments As SeparatedSyntaxList(Of TypeSyntax)
            Get
                Dim listNode = GetRed(_arguments, 2)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of TypeSyntax)(listNode, Me.GetChildIndex(2))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Arguments property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArguments(arguments as SeparatedSyntaxList(Of TypeSyntax)) As TypeArgumentListSyntax
            return Update(Me.OpenParenToken, Me.OfKeyword, arguments, Me.CloseParenToken)
        End Function

        Public Shadows Function AddArguments(ParamArray items As TypeSyntax()) As TypeArgumentListSyntax
            Return Me.WithArguments(Me.Arguments.AddRange(items))
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeArgumentListSyntax)._closeParenToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As TypeArgumentListSyntax
            return Update(Me.OpenParenToken, Me.OfKeyword, Me.Arguments, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._arguments
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return GetRed(_arguments, 2)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitTypeArgumentList(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitTypeArgumentList(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="ofKeyword">
        ''' The value for the OfKeyword property.
        ''' </param>
        ''' <param name="arguments">
        ''' The value for the Arguments property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, ofKeyword As SyntaxToken, arguments As SeparatedSyntaxList(Of TypeSyntax), closeParenToken As SyntaxToken) As TypeArgumentListSyntax
            If openParenToken <> Me.OpenParenToken OrElse ofKeyword <> Me.OfKeyword OrElse arguments <> Me.Arguments OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.TypeArgumentList(openParenToken, ofKeyword, arguments, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Syntax node class that represents a value of 'cref' attribute inside
    ''' documentation comment trivia.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CrefReference"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CrefReferenceSyntax
        Inherits VisualBasicSyntaxNode

        Friend _name as TypeSyntax
        Friend _signature as CrefSignatureSyntax
        Friend _asClause as SimpleAsClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As TypeSyntax, signature As CrefSignatureSyntax, asClause As SimpleAsClauseSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefReferenceSyntax(kind, errors, annotations, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), if(signature IsNot Nothing, DirectCast(signature.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefSignatureSyntax), Nothing), if(asClause IsNot Nothing, DirectCast(asClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SimpleAsClauseSyntax), Nothing)), Nothing, 0)
        End Sub

        Public ReadOnly Property Name As TypeSyntax
            Get
                Return GetRedAtZero(_name)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as TypeSyntax) As CrefReferenceSyntax
            return Update(name, Me.Signature, Me.AsClause)
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Signature As CrefSignatureSyntax
            Get
                Return GetRed(_signature, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Signature property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithSignature(signature as CrefSignatureSyntax) As CrefReferenceSyntax
            return Update(Me.Name, signature, Me.AsClause)
        End Function

        Public Shadows Function AddSignatureArgumentTypes(ParamArray items As CrefSignaturePartSyntax()) As CrefReferenceSyntax
            Dim _child = If(Me.Signature IsNot Nothing, Me.Signature, SyntaxFactory.CrefSignature())
            Return Me.WithSignature(_child.AddArgumentTypes(items))
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AsClause As SimpleAsClauseSyntax
            Get
                Return GetRed(_asClause, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AsClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAsClause(asClause as SimpleAsClauseSyntax) As CrefReferenceSyntax
            return Update(Me.Name, Me.Signature, asClause)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._name
                Case 1
                    Return Me._signature
                Case 2
                    Return Me._asClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Name
                Case 1
                    Return Me.Signature
                Case 2
                    Return Me.AsClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCrefReference(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCrefReference(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="signature">
        ''' The value for the Signature property.
        ''' </param>
        ''' <param name="asClause">
        ''' The value for the AsClause property.
        ''' </param>
        Public Function Update(name As TypeSyntax, signature As CrefSignatureSyntax, asClause As SimpleAsClauseSyntax) As CrefReferenceSyntax
            If name IsNot Me.Name OrElse signature IsNot Me.Signature OrElse asClause IsNot Me.AsClause Then
                Dim newNode = SyntaxFactory.CrefReference(name, signature, asClause)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a parenthesized list of argument types for a signature inside
    ''' CrefReferenceSyntax syntax.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CrefSignature"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CrefSignatureSyntax
        Inherits VisualBasicSyntaxNode

        Friend _argumentTypes as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openParenToken As InternalSyntax.PunctuationSyntax, argumentTypes As SyntaxNode, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefSignatureSyntax(kind, errors, annotations, openParenToken, if(argumentTypes IsNot Nothing, argumentTypes.Green, Nothing), closeParenToken), Nothing, 0)
        End Sub

        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefSignatureSyntax)._openParenToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As CrefSignatureSyntax
            return Update(openParenToken, Me.ArgumentTypes, Me.CloseParenToken)
        End Function

        Public ReadOnly Property ArgumentTypes As SeparatedSyntaxList(Of CrefSignaturePartSyntax)
            Get
                Dim listNode = GetRed(_argumentTypes, 1)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of CrefSignaturePartSyntax)(listNode, Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ArgumentTypes property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgumentTypes(argumentTypes as SeparatedSyntaxList(Of CrefSignaturePartSyntax)) As CrefSignatureSyntax
            return Update(Me.OpenParenToken, argumentTypes, Me.CloseParenToken)
        End Function

        Public Shadows Function AddArgumentTypes(ParamArray items As CrefSignaturePartSyntax()) As CrefSignatureSyntax
            Return Me.WithArgumentTypes(Me.ArgumentTypes.AddRange(items))
        End Function

        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefSignatureSyntax)._closeParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As CrefSignatureSyntax
            return Update(Me.OpenParenToken, Me.ArgumentTypes, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._argumentTypes
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_argumentTypes, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCrefSignature(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCrefSignature(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="argumentTypes">
        ''' The value for the ArgumentTypes property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(openParenToken As SyntaxToken, argumentTypes As SeparatedSyntaxList(Of CrefSignaturePartSyntax), closeParenToken As SyntaxToken) As CrefSignatureSyntax
            If openParenToken <> Me.OpenParenToken OrElse argumentTypes <> Me.ArgumentTypes OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.CrefSignature(openParenToken, argumentTypes, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CrefSignaturePart"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CrefSignaturePartSyntax
        Inherits VisualBasicSyntaxNode

        Friend _type as TypeSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), modifier As InternalSyntax.KeywordSyntax, type As TypeSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefSignaturePartSyntax(kind, errors, annotations, modifier, if(type IsNot Nothing, DirectCast(type.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.TypeSyntax), Nothing)), Nothing, 0)
        End Sub

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Modifier As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefSignaturePartSyntax)._modifier
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Modifier property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithModifier(modifier as SyntaxToken) As CrefSignaturePartSyntax
            return Update(modifier, Me.Type)
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Type As TypeSyntax
            Get
                Return GetRed(_type, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Type property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithType(type as TypeSyntax) As CrefSignaturePartSyntax
            return Update(Me.Modifier, type)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._type
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Type
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCrefSignaturePart(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCrefSignaturePart(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="modifier">
        ''' The value for the Modifier property.
        ''' </param>
        ''' <param name="type">
        ''' The value for the Type property.
        ''' </param>
        Public Function Update(modifier As SyntaxToken, type As TypeSyntax) As CrefSignaturePartSyntax
            If modifier <> Me.Modifier OrElse type IsNot Me.Type Then
                Dim newNode = SyntaxFactory.CrefSignaturePart(modifier, type)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.CrefOperatorReference"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class CrefOperatorReferenceSyntax
        Inherits NameSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), operatorKeyword As InternalSyntax.KeywordSyntax, operatorToken As InternalSyntax.SyntaxToken)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefOperatorReferenceSyntax(kind, errors, annotations, operatorKeyword, operatorToken), Nothing, 0)
        End Sub

        Public ReadOnly Property OperatorKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefOperatorReferenceSyntax)._operatorKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOperatorKeyword(operatorKeyword as SyntaxToken) As CrefOperatorReferenceSyntax
            return Update(operatorKeyword, Me.OperatorToken)
        End Function

        Public ReadOnly Property OperatorToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefOperatorReferenceSyntax)._operatorToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OperatorToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithOperatorToken(operatorToken as SyntaxToken) As CrefOperatorReferenceSyntax
            return Update(Me.OperatorKeyword, operatorToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitCrefOperatorReference(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitCrefOperatorReference(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="operatorKeyword">
        ''' The value for the OperatorKeyword property.
        ''' </param>
        ''' <param name="operatorToken">
        ''' The value for the OperatorToken property.
        ''' </param>
        Public Function Update(operatorKeyword As SyntaxToken, operatorToken As SyntaxToken) As CrefOperatorReferenceSyntax
            If operatorKeyword <> Me.OperatorKeyword OrElse operatorToken <> Me.OperatorToken Then
                Dim newNode = SyntaxFactory.CrefOperatorReference(operatorKeyword, operatorToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.QualifiedCrefOperatorReference"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class QualifiedCrefOperatorReferenceSyntax
        Inherits NameSyntax

        Friend _left as NameSyntax
        Friend _right as CrefOperatorReferenceSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), left As NameSyntax, dotToken As InternalSyntax.PunctuationSyntax, right As CrefOperatorReferenceSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.QualifiedCrefOperatorReferenceSyntax(kind, errors, annotations, DirectCast(left.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameSyntax), dotToken, DirectCast(right.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefOperatorReferenceSyntax)), Nothing, 0)
        End Sub

        Public ReadOnly Property Left As NameSyntax
            Get
                Return GetRedAtZero(_left)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Left property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithLeft(left as NameSyntax) As QualifiedCrefOperatorReferenceSyntax
            return Update(left, Me.DotToken, Me.Right)
        End Function

        Public ReadOnly Property DotToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.QualifiedCrefOperatorReferenceSyntax)._dotToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DotToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithDotToken(dotToken as SyntaxToken) As QualifiedCrefOperatorReferenceSyntax
            return Update(Me.Left, dotToken, Me.Right)
        End Function

        Public ReadOnly Property Right As CrefOperatorReferenceSyntax
            Get
                Return GetRed(_right, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Right property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithRight(right as CrefOperatorReferenceSyntax) As QualifiedCrefOperatorReferenceSyntax
            return Update(Me.Left, Me.DotToken, right)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._left
                Case 2
                    Return Me._right
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Left
                Case 2
                    Return Me.Right
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitQualifiedCrefOperatorReference(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitQualifiedCrefOperatorReference(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="left">
        ''' The value for the Left property.
        ''' </param>
        ''' <param name="dotToken">
        ''' The value for the DotToken property.
        ''' </param>
        ''' <param name="right">
        ''' The value for the Right property.
        ''' </param>
        Public Function Update(left As NameSyntax, dotToken As SyntaxToken, right As CrefOperatorReferenceSyntax) As QualifiedCrefOperatorReferenceSyntax
            If left IsNot Me.Left OrElse dotToken <> Me.DotToken OrElse right IsNot Me.Right Then
                Dim newNode = SyntaxFactory.QualifiedCrefOperatorReference(left, dotToken, right)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represent a Yield statement.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.YieldStatement"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class YieldStatementSyntax
        Inherits ExecutableStatementSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), yieldKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.YieldStatementSyntax(kind, errors, annotations, yieldKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Yield" keyword.
        ''' </summary>
        Public ReadOnly Property YieldKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.YieldStatementSyntax)._yieldKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the YieldKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithYieldKeyword(yieldKeyword as SyntaxToken) As YieldStatementSyntax
            return Update(yieldKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression whose value is being yielded.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As YieldStatementSyntax
            return Update(Me.YieldKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitYieldStatement(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitYieldStatement(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="yieldKeyword">
        ''' The value for the YieldKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(yieldKeyword As SyntaxToken, expression As ExpressionSyntax) As YieldStatementSyntax
            If yieldKeyword <> Me.YieldKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.YieldStatement(yieldKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an Await expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.AwaitExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class AwaitExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), awaitKeyword As InternalSyntax.KeywordSyntax, expression As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AwaitExpressionSyntax(kind, errors, annotations, awaitKeyword, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "Await" keyword.
        ''' </summary>
        Public ReadOnly Property AwaitKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.AwaitExpressionSyntax)._awaitKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AwaitKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithAwaitKeyword(awaitKeyword as SyntaxToken) As AwaitExpressionSyntax
            return Update(awaitKeyword, Me.Expression)
        End Function

        ''' <summary>
        ''' The expression being awaited.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As AwaitExpressionSyntax
            return Update(Me.AwaitKeyword, expression)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitAwaitExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitAwaitExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="awaitKeyword">
        ''' The value for the AwaitKeyword property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        Public Function Update(awaitKeyword As SyntaxToken, expression As ExpressionSyntax) As AwaitExpressionSyntax
            If awaitKeyword <> Me.AwaitKeyword OrElse expression IsNot Me.Expression Then
                Dim newNode = SyntaxFactory.AwaitExpression(awaitKeyword, expression)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Abstract class that represent structured trivia.
    ''' </summary>
    Public MustInherit Class StructuredTriviaSyntax
        Inherits VisualBasicSyntaxNode


    End Class

    ''' <summary>
    ''' Represents tokens that were skipped by the parser as part of error recovery,
    ''' and thus are not part of any syntactic structure.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.SkippedTokensTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class SkippedTokensTriviaSyntax
        Inherits StructuredTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), tokens As GreenNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SkippedTokensTriviaSyntax(kind, errors, annotations, tokens), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The list of tokens that were skipped by the parser.
        ''' </summary>
        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Tokens As SyntaxTokenList
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.SkippedTokensTriviaSyntax)._tokens
                If slot IsNot Nothing
                    return new SyntaxTokenList(Me, slot, Me.Position, 0)
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Tokens property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithTokens(tokens as SyntaxTokenList) As SkippedTokensTriviaSyntax
            return Update(tokens)
        End Function

        Public Shadows Function AddTokens(ParamArray items As SyntaxToken()) As SkippedTokensTriviaSyntax
            Return Me.WithTokens(Me.Tokens.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitSkippedTokensTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitSkippedTokensTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="tokens">
        ''' The value for the Tokens property.
        ''' </param>
        Public Function Update(tokens As SyntaxTokenList) As SkippedTokensTriviaSyntax
            If tokens <> Me.Tokens Then
                Dim newNode = SyntaxFactory.SkippedTokensTrivia(tokens)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a documentation comment e.g. ''' &lt;Summary&gt; appearing in
    ''' source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.DocumentationCommentTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DocumentationCommentTriviaSyntax
        Inherits StructuredTriviaSyntax

        Friend _content as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), content As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DocumentationCommentTriviaSyntax(kind, errors, annotations, if(content IsNot Nothing, content.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <remarks>
        ''' If nothing is present, an empty list is returned.
        ''' </remarks>
        Public ReadOnly Property Content As SyntaxList(Of XmlNodeSyntax)
            Get
                Dim listNode = GetRedAtZero(_content)
                Return new SyntaxList(Of XmlNodeSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Content property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithContent(content as SyntaxList(Of XmlNodeSyntax)) As DocumentationCommentTriviaSyntax
            return Update(content)
        End Function

        Public Shadows Function AddContent(ParamArray items As XmlNodeSyntax()) As DocumentationCommentTriviaSyntax
            Return Me.WithContent(Me.Content.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Me._content
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return GetRedAtZero(_content)
            Else
                Return Nothing
            End If
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDocumentationCommentTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDocumentationCommentTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="content">
        ''' The value for the Content property.
        ''' </param>
        Public Function Update(content As SyntaxList(of XmlNodeSyntax)) As DocumentationCommentTriviaSyntax
            If content <> Me.Content Then
                Dim newNode = SyntaxFactory.DocumentationCommentTrivia(content)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A symbol referenced by a cref attribute (e.g. in a &lt;see&gt; or
    ''' &lt;seealso&gt; documentation comment tag). For example, the M in &lt;see
    ''' cref="M" /&gt;.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlCrefAttribute"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlCrefAttributeSyntax
        Inherits BaseXmlAttributeSyntax

        Friend _name as XmlNameSyntax
        Friend _reference as CrefReferenceSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As XmlNameSyntax, equalsToken As InternalSyntax.PunctuationSyntax, startQuoteToken As InternalSyntax.PunctuationSyntax, reference As CrefReferenceSyntax, endQuoteToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCrefAttributeSyntax(kind, errors, annotations, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameSyntax), equalsToken, startQuoteToken, DirectCast(reference.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.CrefReferenceSyntax), endQuoteToken), Nothing, 0)
        End Sub

        Public ReadOnly Property Name As XmlNameSyntax
            Get
                Return GetRedAtZero(_name)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNameSyntax) As XmlCrefAttributeSyntax
            return Update(name, Me.EqualsToken, Me.StartQuoteToken, Me.Reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCrefAttributeSyntax)._equalsToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As XmlCrefAttributeSyntax
            return Update(Me.Name, equalsToken, Me.StartQuoteToken, Me.Reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property StartQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCrefAttributeSyntax)._startQuoteToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StartQuoteToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithStartQuoteToken(startQuoteToken as SyntaxToken) As XmlCrefAttributeSyntax
            return Update(Me.Name, Me.EqualsToken, startQuoteToken, Me.Reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property Reference As CrefReferenceSyntax
            Get
                Return GetRed(_reference, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Reference property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithReference(reference as CrefReferenceSyntax) As XmlCrefAttributeSyntax
            return Update(Me.Name, Me.EqualsToken, Me.StartQuoteToken, reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property EndQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlCrefAttributeSyntax)._endQuoteToken, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndQuoteToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndQuoteToken(endQuoteToken as SyntaxToken) As XmlCrefAttributeSyntax
            return Update(Me.Name, Me.EqualsToken, Me.StartQuoteToken, Me.Reference, endQuoteToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._name
                Case 3
                    Return Me._reference
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Name
                Case 3
                    Return Me.Reference
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlCrefAttribute(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlCrefAttribute(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        ''' <param name="startQuoteToken">
        ''' The value for the StartQuoteToken property.
        ''' </param>
        ''' <param name="reference">
        ''' The value for the Reference property.
        ''' </param>
        ''' <param name="endQuoteToken">
        ''' The value for the EndQuoteToken property.
        ''' </param>
        Public Function Update(name As XmlNameSyntax, equalsToken As SyntaxToken, startQuoteToken As SyntaxToken, reference As CrefReferenceSyntax, endQuoteToken As SyntaxToken) As XmlCrefAttributeSyntax
            If name IsNot Me.Name OrElse equalsToken <> Me.EqualsToken OrElse startQuoteToken <> Me.StartQuoteToken OrElse reference IsNot Me.Reference OrElse endQuoteToken <> Me.EndQuoteToken Then
                Dim newNode = SyntaxFactory.XmlCrefAttribute(name, equalsToken, startQuoteToken, reference, endQuoteToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' A param or type param symbol referenced by a name attribute (e.g. in a
    ''' &lt;param&gt; or &lt;typeparam&gt; documentation comment tag). For example, the
    ''' M in &lt;param name="M" /&gt;.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.XmlNameAttribute"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class XmlNameAttributeSyntax
        Inherits BaseXmlAttributeSyntax

        Friend _name as XmlNameSyntax
        Friend _reference as IdentifierNameSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), name As XmlNameSyntax, equalsToken As InternalSyntax.PunctuationSyntax, startQuoteToken As InternalSyntax.PunctuationSyntax, reference As IdentifierNameSyntax, endQuoteToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameAttributeSyntax(kind, errors, annotations, DirectCast(name.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameSyntax), equalsToken, startQuoteToken, DirectCast(reference.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IdentifierNameSyntax), endQuoteToken), Nothing, 0)
        End Sub

        Public ReadOnly Property Name As XmlNameSyntax
            Get
                Return GetRedAtZero(_name)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as XmlNameSyntax) As XmlNameAttributeSyntax
            return Update(name, Me.EqualsToken, Me.StartQuoteToken, Me.Reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameAttributeSyntax)._equalsToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As XmlNameAttributeSyntax
            return Update(Me.Name, equalsToken, Me.StartQuoteToken, Me.Reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property StartQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameAttributeSyntax)._startQuoteToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the StartQuoteToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithStartQuoteToken(startQuoteToken as SyntaxToken) As XmlNameAttributeSyntax
            return Update(Me.Name, Me.EqualsToken, startQuoteToken, Me.Reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property Reference As IdentifierNameSyntax
            Get
                Return GetRed(_reference, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Reference property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithReference(reference as IdentifierNameSyntax) As XmlNameAttributeSyntax
            return Update(Me.Name, Me.EqualsToken, Me.StartQuoteToken, reference, Me.EndQuoteToken)
        End Function

        Public ReadOnly Property EndQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.XmlNameAttributeSyntax)._endQuoteToken, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndQuoteToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndQuoteToken(endQuoteToken as SyntaxToken) As XmlNameAttributeSyntax
            return Update(Me.Name, Me.EqualsToken, Me.StartQuoteToken, Me.Reference, endQuoteToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._name
                Case 3
                    Return Me._reference
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Name
                Case 3
                    Return Me.Reference
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitXmlNameAttribute(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitXmlNameAttribute(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        ''' <param name="startQuoteToken">
        ''' The value for the StartQuoteToken property.
        ''' </param>
        ''' <param name="reference">
        ''' The value for the Reference property.
        ''' </param>
        ''' <param name="endQuoteToken">
        ''' The value for the EndQuoteToken property.
        ''' </param>
        Public Function Update(name As XmlNameSyntax, equalsToken As SyntaxToken, startQuoteToken As SyntaxToken, reference As IdentifierNameSyntax, endQuoteToken As SyntaxToken) As XmlNameAttributeSyntax
            If name IsNot Me.Name OrElse equalsToken <> Me.EqualsToken OrElse startQuoteToken <> Me.StartQuoteToken OrElse reference IsNot Me.Reference OrElse endQuoteToken <> Me.EndQuoteToken Then
                Dim newNode = SyntaxFactory.XmlNameAttribute(name, equalsToken, startQuoteToken, reference, endQuoteToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' ExpressionSyntax node representing the object conditionally accessed.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ConditionalAccessExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ConditionalAccessExpressionSyntax
        Inherits ExpressionSyntax

        Friend _expression as ExpressionSyntax
        Friend _whenNotNull as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), expression As ExpressionSyntax, questionMarkToken As InternalSyntax.PunctuationSyntax, whenNotNull As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConditionalAccessExpressionSyntax(kind, errors, annotations, if(expression IsNot Nothing, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), Nothing), questionMarkToken, DirectCast(whenNotNull.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The expression on the left-hand-side of the "?".
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRedAtZero(_expression)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As ConditionalAccessExpressionSyntax
            return Update(expression, Me.QuestionMarkToken, Me.WhenNotNull)
        End Function

        ''' <summary>
        ''' "?" token.
        ''' </summary>
        Public ReadOnly Property QuestionMarkToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConditionalAccessExpressionSyntax)._questionMarkToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the QuestionMarkToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithQuestionMarkToken(questionMarkToken as SyntaxToken) As ConditionalAccessExpressionSyntax
            return Update(Me.Expression, questionMarkToken, Me.WhenNotNull)
        End Function

        ''' <summary>
        ''' ExpressionSyntax node representing the access expression to be executed when
        ''' the object is not null."
        ''' </summary>
        Public ReadOnly Property WhenNotNull As ExpressionSyntax
            Get
                Return GetRed(_whenNotNull, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WhenNotNull property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithWhenNotNull(whenNotNull as ExpressionSyntax) As ConditionalAccessExpressionSyntax
            return Update(Me.Expression, Me.QuestionMarkToken, whenNotNull)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me._expression
                Case 2
                    Return Me._whenNotNull
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 0
                    Return Me.Expression
                Case 2
                    Return Me.WhenNotNull
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitConditionalAccessExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitConditionalAccessExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="questionMarkToken">
        ''' The value for the QuestionMarkToken property.
        ''' </param>
        ''' <param name="whenNotNull">
        ''' The value for the WhenNotNull property.
        ''' </param>
        Public Function Update(expression As ExpressionSyntax, questionMarkToken As SyntaxToken, whenNotNull As ExpressionSyntax) As ConditionalAccessExpressionSyntax
            If expression IsNot Me.Expression OrElse questionMarkToken <> Me.QuestionMarkToken OrElse whenNotNull IsNot Me.WhenNotNull Then
                Dim newNode = SyntaxFactory.ConditionalAccessExpression(expression, questionMarkToken, whenNotNull)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a NameOf expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.NameOfExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class NameOfExpressionSyntax
        Inherits ExpressionSyntax

        Friend _argument as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), nameOfKeyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, argument As ExpressionSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameOfExpressionSyntax(kind, errors, annotations, nameOfKeyword, openParenToken, DirectCast(argument.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "NameOf" keyword.
        ''' </summary>
        Public ReadOnly Property NameOfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameOfExpressionSyntax)._nameOfKeyword, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the NameOfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithNameOfKeyword(nameOfKeyword as SyntaxToken) As NameOfExpressionSyntax
            return Update(nameOfKeyword, Me.OpenParenToken, Me.Argument, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The "(" token.
        ''' </summary>
        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameOfExpressionSyntax)._openParenToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As NameOfExpressionSyntax
            return Update(Me.NameOfKeyword, openParenToken, Me.Argument, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The argument.
        ''' </summary>
        Public ReadOnly Property Argument As ExpressionSyntax
            Get
                Return GetRed(_argument, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Argument property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithArgument(argument as ExpressionSyntax) As NameOfExpressionSyntax
            return Update(Me.NameOfKeyword, Me.OpenParenToken, argument, Me.CloseParenToken)
        End Function

        ''' <summary>
        ''' The ")" token.
        ''' </summary>
        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.NameOfExpressionSyntax)._closeParenToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As NameOfExpressionSyntax
            return Update(Me.NameOfKeyword, Me.OpenParenToken, Me.Argument, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me._argument
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 2
                    Return Me.Argument
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitNameOfExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitNameOfExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="nameOfKeyword">
        ''' The value for the NameOfKeyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="argument">
        ''' The value for the Argument property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(nameOfKeyword As SyntaxToken, openParenToken As SyntaxToken, argument As ExpressionSyntax, closeParenToken As SyntaxToken) As NameOfExpressionSyntax
            If nameOfKeyword <> Me.NameOfKeyword OrElse openParenToken <> Me.OpenParenToken OrElse argument IsNot Me.Argument OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.NameOfExpression(nameOfKeyword, openParenToken, argument, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an interpolated string expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InterpolatedStringExpression"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InterpolatedStringExpressionSyntax
        Inherits ExpressionSyntax

        Friend _contents as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), dollarSignDoubleQuoteToken As InternalSyntax.PunctuationSyntax, contents As SyntaxNode, doubleQuoteToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolatedStringExpressionSyntax(kind, errors, annotations, dollarSignDoubleQuoteToken, if(contents IsNot Nothing, contents.Green, Nothing), doubleQuoteToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The opening '$"', '$“', or '$”' token.
        ''' </summary>
        Public ReadOnly Property DollarSignDoubleQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolatedStringExpressionSyntax)._dollarSignDoubleQuoteToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DollarSignDoubleQuoteToken property changed to
        ''' the specified value. Returns this instance if the specified value is the same
        ''' as the current value.
        ''' </summary>
        Public Shadows Function WithDollarSignDoubleQuoteToken(dollarSignDoubleQuoteToken as SyntaxToken) As InterpolatedStringExpressionSyntax
            return Update(dollarSignDoubleQuoteToken, Me.Contents, Me.DoubleQuoteToken)
        End Function

        ''' <summary>
        ''' The contents of the interpolated string.
        ''' </summary>
        Public ReadOnly Property Contents As SyntaxList(Of InterpolatedStringContentSyntax)
            Get
                Dim listNode = GetRed(_contents, 1)
                Return new SyntaxList(Of InterpolatedStringContentSyntax)(listNode)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Contents property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithContents(contents as SyntaxList(Of InterpolatedStringContentSyntax)) As InterpolatedStringExpressionSyntax
            return Update(Me.DollarSignDoubleQuoteToken, contents, Me.DoubleQuoteToken)
        End Function

        Public Shadows Function AddContents(ParamArray items As InterpolatedStringContentSyntax()) As InterpolatedStringExpressionSyntax
            Return Me.WithContents(Me.Contents.AddRange(items))
        End Function

        ''' <summary>
        ''' The closing '"', '”', or '“' token.
        ''' </summary>
        Public ReadOnly Property DoubleQuoteToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolatedStringExpressionSyntax)._doubleQuoteToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DoubleQuoteToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithDoubleQuoteToken(doubleQuoteToken as SyntaxToken) As InterpolatedStringExpressionSyntax
            return Update(Me.DollarSignDoubleQuoteToken, Me.Contents, doubleQuoteToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._contents
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return GetRed(_contents, 1)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInterpolatedStringExpression(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInterpolatedStringExpression(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="dollarSignDoubleQuoteToken">
        ''' The value for the DollarSignDoubleQuoteToken property.
        ''' </param>
        ''' <param name="contents">
        ''' The value for the Contents property.
        ''' </param>
        ''' <param name="doubleQuoteToken">
        ''' The value for the DoubleQuoteToken property.
        ''' </param>
        Public Function Update(dollarSignDoubleQuoteToken As SyntaxToken, contents As SyntaxList(of InterpolatedStringContentSyntax), doubleQuoteToken As SyntaxToken) As InterpolatedStringExpressionSyntax
            If dollarSignDoubleQuoteToken <> Me.DollarSignDoubleQuoteToken OrElse contents <> Me.Contents OrElse doubleQuoteToken <> Me.DoubleQuoteToken Then
                Dim newNode = SyntaxFactory.InterpolatedStringExpression(dollarSignDoubleQuoteToken, contents, doubleQuoteToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents either text content or an interpolation.
    ''' </summary>
    Public MustInherit Class InterpolatedStringContentSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

    End Class

    ''' <summary>
    ''' Represents literal text content in an interpolated string.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InterpolatedStringText"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InterpolatedStringTextSyntax
        Inherits InterpolatedStringContentSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), textToken As InternalSyntax.InterpolatedStringTextTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolatedStringTextSyntax(kind, errors, annotations, textToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The text token.
        ''' </summary>
        Public ReadOnly Property TextToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolatedStringTextSyntax)._textToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the TextToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithTextToken(textToken as SyntaxToken) As InterpolatedStringTextSyntax
            return Update(textToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInterpolatedStringText(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInterpolatedStringText(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="textToken">
        ''' The value for the TextToken property.
        ''' </param>
        Public Function Update(textToken As SyntaxToken) As InterpolatedStringTextSyntax
            If textToken <> Me.TextToken Then
                Dim newNode = SyntaxFactory.InterpolatedStringText(textToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an interpolation of an expression in an interpolated string
    ''' expression e.g. '{expression[,alignment][:formatString]}'.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.Interpolation"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InterpolationSyntax
        Inherits InterpolatedStringContentSyntax

        Friend _expression as ExpressionSyntax
        Friend _alignmentClause as InterpolationAlignmentClauseSyntax
        Friend _formatClause as InterpolationFormatClauseSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), openBraceToken As InternalSyntax.PunctuationSyntax, expression As ExpressionSyntax, alignmentClause As InterpolationAlignmentClauseSyntax, formatClause As InterpolationFormatClauseSyntax, closeBraceToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationSyntax(kind, errors, annotations, openBraceToken, DirectCast(expression.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), if(alignmentClause IsNot Nothing, DirectCast(alignmentClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationAlignmentClauseSyntax), Nothing), if(formatClause IsNot Nothing, DirectCast(formatClause.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationFormatClauseSyntax), Nothing), closeBraceToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The opening curly brace '{' token.
        ''' </summary>
        Public ReadOnly Property OpenBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationSyntax)._openBraceToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenBraceToken(openBraceToken as SyntaxToken) As InterpolationSyntax
            return Update(openBraceToken, Me.Expression, Me.AlignmentClause, Me.FormatClause, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' The expression whose formatted value should be embedded in the resultant
        ''' string.
        ''' </summary>
        Public ReadOnly Property Expression As ExpressionSyntax
            Get
                Return GetRed(_expression, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Expression property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithExpression(expression as ExpressionSyntax) As InterpolationSyntax
            return Update(Me.OpenBraceToken, expression, Me.AlignmentClause, Me.FormatClause, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' Optional. The alignment clause ',alignment' of the embedded expression.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property AlignmentClause As InterpolationAlignmentClauseSyntax
            Get
                Return GetRed(_alignmentClause, 2)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the AlignmentClause property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithAlignmentClause(alignmentClause as InterpolationAlignmentClauseSyntax) As InterpolationSyntax
            return Update(Me.OpenBraceToken, Me.Expression, alignmentClause, Me.FormatClause, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' Optional. The format string clause ':formatString' of the embedded expression.
        ''' </summary>
        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property FormatClause As InterpolationFormatClauseSyntax
            Get
                Return GetRed(_formatClause, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FormatClause property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithFormatClause(formatClause as InterpolationFormatClauseSyntax) As InterpolationSyntax
            return Update(Me.OpenBraceToken, Me.Expression, Me.AlignmentClause, formatClause, Me.CloseBraceToken)
        End Function

        ''' <summary>
        ''' The closing curly brace '}' token of the embedded expression.
        ''' </summary>
        Public ReadOnly Property CloseBraceToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationSyntax)._closeBraceToken, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseBraceToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseBraceToken(closeBraceToken as SyntaxToken) As InterpolationSyntax
            return Update(Me.OpenBraceToken, Me.Expression, Me.AlignmentClause, Me.FormatClause, closeBraceToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._expression
                Case 2
                    Return Me._alignmentClause
                Case 3
                    Return Me._formatClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Expression
                Case 2
                    Return Me.AlignmentClause
                Case 3
                    Return Me.FormatClause
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInterpolation(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInterpolation(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="openBraceToken">
        ''' The value for the OpenBraceToken property.
        ''' </param>
        ''' <param name="expression">
        ''' The value for the Expression property.
        ''' </param>
        ''' <param name="alignmentClause">
        ''' The value for the AlignmentClause property.
        ''' </param>
        ''' <param name="formatClause">
        ''' The value for the FormatClause property.
        ''' </param>
        ''' <param name="closeBraceToken">
        ''' The value for the CloseBraceToken property.
        ''' </param>
        Public Function Update(openBraceToken As SyntaxToken, expression As ExpressionSyntax, alignmentClause As InterpolationAlignmentClauseSyntax, formatClause As InterpolationFormatClauseSyntax, closeBraceToken As SyntaxToken) As InterpolationSyntax
            If openBraceToken <> Me.OpenBraceToken OrElse expression IsNot Me.Expression OrElse alignmentClause IsNot Me.AlignmentClause OrElse formatClause IsNot Me.FormatClause OrElse closeBraceToken <> Me.CloseBraceToken Then
                Dim newNode = SyntaxFactory.Interpolation(openBraceToken, expression, alignmentClause, formatClause, closeBraceToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an alignment clause ',alignment' of an interpolated string embedded
    ''' expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InterpolationAlignmentClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InterpolationAlignmentClauseSyntax
        Inherits VisualBasicSyntaxNode

        Friend _value as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), commaToken As InternalSyntax.PunctuationSyntax, value As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationAlignmentClauseSyntax(kind, errors, annotations, commaToken, DirectCast(value.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The comma ',' token.
        ''' </summary>
        Public ReadOnly Property CommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationAlignmentClauseSyntax)._commaToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaToken(commaToken as SyntaxToken) As InterpolationAlignmentClauseSyntax
            return Update(commaToken, Me.Value)
        End Function

        ''' <summary>
        ''' An expression representing the alignment of the interpolated expression.
        ''' </summary>
        Public ReadOnly Property Value As ExpressionSyntax
            Get
                Return GetRed(_value, 1)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Value property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithValue(value as ExpressionSyntax) As InterpolationAlignmentClauseSyntax
            return Update(Me.CommaToken, value)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me._value
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 1
                    Return Me.Value
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInterpolationAlignmentClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInterpolationAlignmentClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="commaToken">
        ''' The value for the CommaToken property.
        ''' </param>
        ''' <param name="value">
        ''' The value for the Value property.
        ''' </param>
        Public Function Update(commaToken As SyntaxToken, value As ExpressionSyntax) As InterpolationAlignmentClauseSyntax
            If commaToken <> Me.CommaToken OrElse value IsNot Me.Value Then
                Dim newNode = SyntaxFactory.InterpolationAlignmentClause(commaToken, value)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a format string clause ':formatString' of an interpolated string
    ''' embedded expression.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.InterpolationFormatClause"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class InterpolationFormatClauseSyntax
        Inherits VisualBasicSyntaxNode


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), colonToken As InternalSyntax.PunctuationSyntax, formatStringToken As InternalSyntax.InterpolatedStringTextTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationFormatClauseSyntax(kind, errors, annotations, colonToken, formatStringToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The ':' token.
        ''' </summary>
        Public ReadOnly Property ColonToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationFormatClauseSyntax)._colonToken, Me.Position, 0)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ColonToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithColonToken(colonToken as SyntaxToken) As InterpolationFormatClauseSyntax
            return Update(colonToken, Me.FormatStringToken)
        End Function

        ''' <summary>
        ''' The format string.
        ''' </summary>
        Public ReadOnly Property FormatStringToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.InterpolationFormatClauseSyntax)._formatStringToken, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FormatStringToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithFormatStringToken(formatStringToken as SyntaxToken) As InterpolationFormatClauseSyntax
            return Update(Me.ColonToken, formatStringToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitInterpolationFormatClause(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitInterpolationFormatClause(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="colonToken">
        ''' The value for the ColonToken property.
        ''' </param>
        ''' <param name="formatStringToken">
        ''' The value for the FormatStringToken property.
        ''' </param>
        Public Function Update(colonToken As SyntaxToken, formatStringToken As SyntaxToken) As InterpolationFormatClauseSyntax
            If colonToken <> Me.ColonToken OrElse formatStringToken <> Me.FormatStringToken Then
                Dim newNode = SyntaxFactory.InterpolationFormatClause(colonToken, formatStringToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents a pre-processing directive (such as #If, #Const or #Region)
    ''' appearing in source.
    ''' </summary>
    Public MustInherit Class DirectiveTriviaSyntax
        Inherits StructuredTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public ReadOnly Property HashToken As SyntaxToken
            Get
                Return Me.GetHashTokenCore()
            End Get
        End Property

        Friend Overridable Function GetHashTokenCore() As SyntaxToken
            return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DirectiveTriviaSyntax)._hashToken, Me.Position, 0)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Function WithHashToken(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashTokenCore(hashToken)
        End Function
        Friend MustOverride Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax

    End Class

    ''' <summary>
    ''' Represents a #Const pre-processing constant declaration appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ConstDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ConstDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax

        Friend _value as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, constKeyword As InternalSyntax.KeywordSyntax, name As InternalSyntax.IdentifierTokenSyntax, equalsToken As InternalSyntax.PunctuationSyntax, value As ExpressionSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConstDirectiveTriviaSyntax(kind, errors, annotations, hashToken, constKeyword, name, equalsToken, DirectCast(value.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConstDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As ConstDirectiveTriviaSyntax
            return Update(hashToken, Me.ConstKeyword, Me.Name, Me.EqualsToken, Me.Value)
        End Function

        ''' <summary>
        ''' The "Const" keyword.
        ''' </summary>
        Public ReadOnly Property ConstKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConstDirectiveTriviaSyntax)._constKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ConstKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithConstKeyword(constKeyword as SyntaxToken) As ConstDirectiveTriviaSyntax
            return Update(Me.HashToken, constKeyword, Me.Name, Me.EqualsToken, Me.Value)
        End Function

        ''' <summary>
        ''' The name of the pre-processing constant being defined.
        ''' </summary>
        Public ReadOnly Property Name As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConstDirectiveTriviaSyntax)._name, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as SyntaxToken) As ConstDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ConstKeyword, name, Me.EqualsToken, Me.Value)
        End Function

        ''' <summary>
        ''' The "=" token.
        ''' </summary>
        Public ReadOnly Property EqualsToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ConstDirectiveTriviaSyntax)._equalsToken, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EqualsToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEqualsToken(equalsToken as SyntaxToken) As ConstDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ConstKeyword, Me.Name, equalsToken, Me.Value)
        End Function

        ''' <summary>
        ''' An expression representing the value of the pre-processing constant being
        ''' defined.
        ''' </summary>
        Public ReadOnly Property Value As ExpressionSyntax
            Get
                Return GetRed(_value, 4)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Value property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithValue(value as ExpressionSyntax) As ConstDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ConstKeyword, Me.Name, Me.EqualsToken, value)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 4
                    Return Me._value
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 4
                    Return Me.Value
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitConstDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitConstDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="constKeyword">
        ''' The value for the ConstKeyword property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        ''' <param name="equalsToken">
        ''' The value for the EqualsToken property.
        ''' </param>
        ''' <param name="value">
        ''' The value for the Value property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, constKeyword As SyntaxToken, name As SyntaxToken, equalsToken As SyntaxToken, value As ExpressionSyntax) As ConstDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse constKeyword <> Me.ConstKeyword OrElse name <> Me.Name OrElse equalsToken <> Me.EqualsToken OrElse value IsNot Me.Value Then
                Dim newNode = SyntaxFactory.ConstDirectiveTrivia(hashToken, constKeyword, name, equalsToken, value)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning of an #If pre-processing directive appearing in
    ''' source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.IfDirectiveTrivia"/></description></item>
    ''' <item><description><see cref="SyntaxKind.ElseIfDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class IfDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax

        Friend _condition as ExpressionSyntax

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, elseKeyword As InternalSyntax.KeywordSyntax, ifOrElseIfKeyword As InternalSyntax.KeywordSyntax, condition As ExpressionSyntax, thenKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfDirectiveTriviaSyntax(kind, errors, annotations, hashToken, elseKeyword, ifOrElseIfKeyword, DirectCast(condition.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExpressionSyntax), thenKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As IfDirectiveTriviaSyntax
            return Update(Me.Kind, hashToken, Me.ElseKeyword, Me.IfOrElseIfKeyword, Me.Condition, Me.ThenKeyword)
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ElseKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfDirectiveTriviaSyntax)._elseKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(1), Me.GetChildIndex(1))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseKeyword(elseKeyword as SyntaxToken) As IfDirectiveTriviaSyntax
            return Update(Me.Kind, Me.HashToken, elseKeyword, Me.IfOrElseIfKeyword, Me.Condition, Me.ThenKeyword)
        End Function

        Public ReadOnly Property IfOrElseIfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfDirectiveTriviaSyntax)._ifOrElseIfKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IfOrElseIfKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithIfOrElseIfKeyword(ifOrElseIfKeyword as SyntaxToken) As IfDirectiveTriviaSyntax
            return Update(Me.Kind, Me.HashToken, Me.ElseKeyword, ifOrElseIfKeyword, Me.Condition, Me.ThenKeyword)
        End Function

        Public ReadOnly Property Condition As ExpressionSyntax
            Get
                Return GetRed(_condition, 3)
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Condition property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCondition(condition as ExpressionSyntax) As IfDirectiveTriviaSyntax
            return Update(Me.Kind, Me.HashToken, Me.ElseKeyword, Me.IfOrElseIfKeyword, condition, Me.ThenKeyword)
        End Function

        ''' <remarks>
        ''' This child is optional. If it is not present, then Nothing is returned.
        ''' </remarks>
        Public ReadOnly Property ThenKeyword As SyntaxToken
            Get
                Dim slot = DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.IfDirectiveTriviaSyntax)._thenKeyword
                If slot IsNot Nothing
                    return new SyntaxToken(Me, slot, Me.GetChildPosition(4), Me.GetChildIndex(4))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ThenKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithThenKeyword(thenKeyword as SyntaxToken) As IfDirectiveTriviaSyntax
            return Update(Me.Kind, Me.HashToken, Me.ElseKeyword, Me.IfOrElseIfKeyword, Me.Condition, thenKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 3
                    Return Me._condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 3
                    Return Me.Condition
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitIfDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitIfDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="kind">
        ''' The new kind.
        ''' </param>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="elseKeyword">
        ''' The value for the ElseKeyword property.
        ''' </param>
        ''' <param name="ifOrElseIfKeyword">
        ''' The value for the IfOrElseIfKeyword property.
        ''' </param>
        ''' <param name="condition">
        ''' The value for the Condition property.
        ''' </param>
        ''' <param name="thenKeyword">
        ''' The value for the ThenKeyword property.
        ''' </param>
        Public Function Update(kind As SyntaxKind, hashToken As SyntaxToken, elseKeyword As SyntaxToken, ifOrElseIfKeyword As SyntaxToken, condition As ExpressionSyntax, thenKeyword As SyntaxToken) As IfDirectiveTriviaSyntax
            If kind <> Me.Kind OrElse hashToken <> Me.HashToken OrElse elseKeyword <> Me.ElseKeyword OrElse ifOrElseIfKeyword <> Me.IfOrElseIfKeyword OrElse condition IsNot Me.Condition OrElse thenKeyword <> Me.ThenKeyword Then
                Dim newNode = SyntaxFactory.IfDirectiveTrivia(kind, hashToken, elseKeyword, ifOrElseIfKeyword, condition, thenKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an #Else pre-processing directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ElseDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ElseDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, elseKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseDirectiveTriviaSyntax(kind, errors, annotations, hashToken, elseKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As ElseDirectiveTriviaSyntax
            return Update(hashToken, Me.ElseKeyword)
        End Function

        Public ReadOnly Property ElseKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ElseDirectiveTriviaSyntax)._elseKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ElseKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithElseKeyword(elseKeyword as SyntaxToken) As ElseDirectiveTriviaSyntax
            return Update(Me.HashToken, elseKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitElseDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitElseDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="elseKeyword">
        ''' The value for the ElseKeyword property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, elseKeyword As SyntaxToken) As ElseDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse elseKeyword <> Me.ElseKeyword Then
                Dim newNode = SyntaxFactory.ElseDirectiveTrivia(hashToken, elseKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an #End If pre-processing directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EndIfDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EndIfDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, endKeyword As InternalSyntax.KeywordSyntax, ifKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndIfDirectiveTriviaSyntax(kind, errors, annotations, hashToken, endKeyword, ifKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndIfDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As EndIfDirectiveTriviaSyntax
            return Update(hashToken, Me.EndKeyword, Me.IfKeyword)
        End Function

        Public ReadOnly Property EndKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndIfDirectiveTriviaSyntax)._endKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndKeyword(endKeyword as SyntaxToken) As EndIfDirectiveTriviaSyntax
            return Update(Me.HashToken, endKeyword, Me.IfKeyword)
        End Function

        Public ReadOnly Property IfKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndIfDirectiveTriviaSyntax)._ifKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the IfKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithIfKeyword(ifKeyword as SyntaxToken) As EndIfDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.EndKeyword, ifKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEndIfDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEndIfDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="endKeyword">
        ''' The value for the EndKeyword property.
        ''' </param>
        ''' <param name="ifKeyword">
        ''' The value for the IfKeyword property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, endKeyword As SyntaxToken, ifKeyword As SyntaxToken) As EndIfDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse endKeyword <> Me.EndKeyword OrElse ifKeyword <> Me.IfKeyword Then
                Dim newNode = SyntaxFactory.EndIfDirectiveTrivia(hashToken, endKeyword, ifKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning of a #Region directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.RegionDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class RegionDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, regionKeyword As InternalSyntax.KeywordSyntax, name As InternalSyntax.StringLiteralTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RegionDirectiveTriviaSyntax(kind, errors, annotations, hashToken, regionKeyword, name), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RegionDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As RegionDirectiveTriviaSyntax
            return Update(hashToken, Me.RegionKeyword, Me.Name)
        End Function

        ''' <summary>
        ''' The "Region" keyword.
        ''' </summary>
        Public ReadOnly Property RegionKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RegionDirectiveTriviaSyntax)._regionKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the RegionKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithRegionKeyword(regionKeyword as SyntaxToken) As RegionDirectiveTriviaSyntax
            return Update(Me.HashToken, regionKeyword, Me.Name)
        End Function

        ''' <summary>
        ''' The label of the code region being defined.
        ''' </summary>
        Public ReadOnly Property Name As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.RegionDirectiveTriviaSyntax)._name, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Name property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithName(name as SyntaxToken) As RegionDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.RegionKeyword, name)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitRegionDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitRegionDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="regionKeyword">
        ''' The value for the RegionKeyword property.
        ''' </param>
        ''' <param name="name">
        ''' The value for the Name property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, regionKeyword As SyntaxToken, name As SyntaxToken) As RegionDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse regionKeyword <> Me.RegionKeyword OrElse name <> Me.Name Then
                Dim newNode = SyntaxFactory.RegionDirectiveTrivia(hashToken, regionKeyword, name)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an #End Region directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EndRegionDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EndRegionDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, endKeyword As InternalSyntax.KeywordSyntax, regionKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndRegionDirectiveTriviaSyntax(kind, errors, annotations, hashToken, endKeyword, regionKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndRegionDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As EndRegionDirectiveTriviaSyntax
            return Update(hashToken, Me.EndKeyword, Me.RegionKeyword)
        End Function

        ''' <summary>
        ''' The "End" keyword.
        ''' </summary>
        Public ReadOnly Property EndKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndRegionDirectiveTriviaSyntax)._endKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndKeyword(endKeyword as SyntaxToken) As EndRegionDirectiveTriviaSyntax
            return Update(Me.HashToken, endKeyword, Me.RegionKeyword)
        End Function

        ''' <summary>
        ''' The "Region" keyword.
        ''' </summary>
        Public ReadOnly Property RegionKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndRegionDirectiveTriviaSyntax)._regionKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the RegionKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithRegionKeyword(regionKeyword as SyntaxToken) As EndRegionDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.EndKeyword, regionKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEndRegionDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEndRegionDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="endKeyword">
        ''' The value for the EndKeyword property.
        ''' </param>
        ''' <param name="regionKeyword">
        ''' The value for the RegionKeyword property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, endKeyword As SyntaxToken, regionKeyword As SyntaxToken) As EndRegionDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse endKeyword <> Me.EndKeyword OrElse regionKeyword <> Me.RegionKeyword Then
                Dim newNode = SyntaxFactory.EndRegionDirectiveTrivia(hashToken, endKeyword, regionKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents the beginning of a #ExternalSource pre-processing directive
    ''' appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ExternalSourceDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ExternalSourceDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, externalSourceKeyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, externalSource As InternalSyntax.StringLiteralTokenSyntax, commaToken As InternalSyntax.PunctuationSyntax, lineStart As InternalSyntax.IntegerLiteralTokenSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax(kind, errors, annotations, hashToken, externalSourceKeyword, openParenToken, externalSource, commaToken, lineStart, closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            return Update(hashToken, Me.ExternalSourceKeyword, Me.OpenParenToken, Me.ExternalSource, Me.CommaToken, Me.LineStart, Me.CloseParenToken)
        End Function

        Public ReadOnly Property ExternalSourceKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)._externalSourceKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ExternalSourceKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithExternalSourceKeyword(externalSourceKeyword as SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, externalSourceKeyword, Me.OpenParenToken, Me.ExternalSource, Me.CommaToken, Me.LineStart, Me.CloseParenToken)
        End Function

        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)._openParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalSourceKeyword, openParenToken, Me.ExternalSource, Me.CommaToken, Me.LineStart, Me.CloseParenToken)
        End Function

        Public ReadOnly Property ExternalSource As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)._externalSource, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ExternalSource property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithExternalSource(externalSource as SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalSourceKeyword, Me.OpenParenToken, externalSource, Me.CommaToken, Me.LineStart, Me.CloseParenToken)
        End Function

        Public ReadOnly Property CommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)._commaToken, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CommaToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithCommaToken(commaToken as SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalSourceKeyword, Me.OpenParenToken, Me.ExternalSource, commaToken, Me.LineStart, Me.CloseParenToken)
        End Function

        Public ReadOnly Property LineStart As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)._lineStart, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the LineStart property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithLineStart(lineStart as SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalSourceKeyword, Me.OpenParenToken, Me.ExternalSource, Me.CommaToken, lineStart, Me.CloseParenToken)
        End Function

        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)._closeParenToken, Me.GetChildPosition(6), Me.GetChildIndex(6))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalSourceKeyword, Me.OpenParenToken, Me.ExternalSource, Me.CommaToken, Me.LineStart, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitExternalSourceDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitExternalSourceDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="externalSourceKeyword">
        ''' The value for the ExternalSourceKeyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="externalSource">
        ''' The value for the ExternalSource property.
        ''' </param>
        ''' <param name="commaToken">
        ''' The value for the CommaToken property.
        ''' </param>
        ''' <param name="lineStart">
        ''' The value for the LineStart property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, externalSourceKeyword As SyntaxToken, openParenToken As SyntaxToken, externalSource As SyntaxToken, commaToken As SyntaxToken, lineStart As SyntaxToken, closeParenToken As SyntaxToken) As ExternalSourceDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse externalSourceKeyword <> Me.ExternalSourceKeyword OrElse openParenToken <> Me.OpenParenToken OrElse externalSource <> Me.ExternalSource OrElse commaToken <> Me.CommaToken OrElse lineStart <> Me.LineStart OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.ExternalSourceDirectiveTrivia(hashToken, externalSourceKeyword, openParenToken, externalSource, commaToken, lineStart, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an #End ExternalSource pre-processing directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EndExternalSourceDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EndExternalSourceDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, endKeyword As InternalSyntax.KeywordSyntax, externalSourceKeyword As InternalSyntax.KeywordSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndExternalSourceDirectiveTriviaSyntax(kind, errors, annotations, hashToken, endKeyword, externalSourceKeyword), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndExternalSourceDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As EndExternalSourceDirectiveTriviaSyntax
            return Update(hashToken, Me.EndKeyword, Me.ExternalSourceKeyword)
        End Function

        Public ReadOnly Property EndKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndExternalSourceDirectiveTriviaSyntax)._endKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EndKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEndKeyword(endKeyword as SyntaxToken) As EndExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, endKeyword, Me.ExternalSourceKeyword)
        End Function

        Public ReadOnly Property ExternalSourceKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EndExternalSourceDirectiveTriviaSyntax)._externalSourceKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ExternalSourceKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithExternalSourceKeyword(externalSourceKeyword as SyntaxToken) As EndExternalSourceDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.EndKeyword, externalSourceKeyword)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEndExternalSourceDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEndExternalSourceDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="endKeyword">
        ''' The value for the EndKeyword property.
        ''' </param>
        ''' <param name="externalSourceKeyword">
        ''' The value for the ExternalSourceKeyword property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, endKeyword As SyntaxToken, externalSourceKeyword As SyntaxToken) As EndExternalSourceDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse endKeyword <> Me.EndKeyword OrElse externalSourceKeyword <> Me.ExternalSourceKeyword Then
                Dim newNode = SyntaxFactory.EndExternalSourceDirectiveTrivia(hashToken, endKeyword, externalSourceKeyword)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an #ExternalChecksum pre-processing directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ExternalChecksumDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ExternalChecksumDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, externalChecksumKeyword As InternalSyntax.KeywordSyntax, openParenToken As InternalSyntax.PunctuationSyntax, externalSource As InternalSyntax.StringLiteralTokenSyntax, firstCommaToken As InternalSyntax.PunctuationSyntax, guid As InternalSyntax.StringLiteralTokenSyntax, secondCommaToken As InternalSyntax.PunctuationSyntax, checksum As InternalSyntax.StringLiteralTokenSyntax, closeParenToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax(kind, errors, annotations, hashToken, externalChecksumKeyword, openParenToken, externalSource, firstCommaToken, guid, secondCommaToken, checksum, closeParenToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(hashToken, Me.ExternalChecksumKeyword, Me.OpenParenToken, Me.ExternalSource, Me.FirstCommaToken, Me.Guid, Me.SecondCommaToken, Me.Checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property ExternalChecksumKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._externalChecksumKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ExternalChecksumKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithExternalChecksumKeyword(externalChecksumKeyword as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, externalChecksumKeyword, Me.OpenParenToken, Me.ExternalSource, Me.FirstCommaToken, Me.Guid, Me.SecondCommaToken, Me.Checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property OpenParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._openParenToken, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the OpenParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithOpenParenToken(openParenToken as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalChecksumKeyword, openParenToken, Me.ExternalSource, Me.FirstCommaToken, Me.Guid, Me.SecondCommaToken, Me.Checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property ExternalSource As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._externalSource, Me.GetChildPosition(3), Me.GetChildIndex(3))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ExternalSource property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithExternalSource(externalSource as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalChecksumKeyword, Me.OpenParenToken, externalSource, Me.FirstCommaToken, Me.Guid, Me.SecondCommaToken, Me.Checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property FirstCommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._firstCommaToken, Me.GetChildPosition(4), Me.GetChildIndex(4))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the FirstCommaToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithFirstCommaToken(firstCommaToken as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalChecksumKeyword, Me.OpenParenToken, Me.ExternalSource, firstCommaToken, Me.Guid, Me.SecondCommaToken, Me.Checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property Guid As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._guid, Me.GetChildPosition(5), Me.GetChildIndex(5))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Guid property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithGuid(guid as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalChecksumKeyword, Me.OpenParenToken, Me.ExternalSource, Me.FirstCommaToken, guid, Me.SecondCommaToken, Me.Checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property SecondCommaToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._secondCommaToken, Me.GetChildPosition(6), Me.GetChildIndex(6))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the SecondCommaToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithSecondCommaToken(secondCommaToken as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalChecksumKeyword, Me.OpenParenToken, Me.ExternalSource, Me.FirstCommaToken, Me.Guid, secondCommaToken, Me.Checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property Checksum As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._checksum, Me.GetChildPosition(7), Me.GetChildIndex(7))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the Checksum property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithChecksum(checksum as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalChecksumKeyword, Me.OpenParenToken, Me.ExternalSource, Me.FirstCommaToken, Me.Guid, Me.SecondCommaToken, checksum, Me.CloseParenToken)
        End Function

        Public ReadOnly Property CloseParenToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalChecksumDirectiveTriviaSyntax)._closeParenToken, Me.GetChildPosition(8), Me.GetChildIndex(8))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the CloseParenToken property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithCloseParenToken(closeParenToken as SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ExternalChecksumKeyword, Me.OpenParenToken, Me.ExternalSource, Me.FirstCommaToken, Me.Guid, Me.SecondCommaToken, Me.Checksum, closeParenToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitExternalChecksumDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitExternalChecksumDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="externalChecksumKeyword">
        ''' The value for the ExternalChecksumKeyword property.
        ''' </param>
        ''' <param name="openParenToken">
        ''' The value for the OpenParenToken property.
        ''' </param>
        ''' <param name="externalSource">
        ''' The value for the ExternalSource property.
        ''' </param>
        ''' <param name="firstCommaToken">
        ''' The value for the FirstCommaToken property.
        ''' </param>
        ''' <param name="guid">
        ''' The value for the Guid property.
        ''' </param>
        ''' <param name="secondCommaToken">
        ''' The value for the SecondCommaToken property.
        ''' </param>
        ''' <param name="checksum">
        ''' The value for the Checksum property.
        ''' </param>
        ''' <param name="closeParenToken">
        ''' The value for the CloseParenToken property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, externalChecksumKeyword As SyntaxToken, openParenToken As SyntaxToken, externalSource As SyntaxToken, firstCommaToken As SyntaxToken, guid As SyntaxToken, secondCommaToken As SyntaxToken, checksum As SyntaxToken, closeParenToken As SyntaxToken) As ExternalChecksumDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse externalChecksumKeyword <> Me.ExternalChecksumKeyword OrElse openParenToken <> Me.OpenParenToken OrElse externalSource <> Me.ExternalSource OrElse firstCommaToken <> Me.FirstCommaToken OrElse guid <> Me.Guid OrElse secondCommaToken <> Me.SecondCommaToken OrElse checksum <> Me.Checksum OrElse closeParenToken <> Me.CloseParenToken Then
                Dim newNode = SyntaxFactory.ExternalChecksumDirectiveTrivia(hashToken, externalChecksumKeyword, openParenToken, externalSource, firstCommaToken, guid, secondCommaToken, checksum, closeParenToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents #Enable Warning pre-processing directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.EnableWarningDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class EnableWarningDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax

        Friend _errorCodes as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, enableKeyword As InternalSyntax.KeywordSyntax, warningKeyword As InternalSyntax.KeywordSyntax, errorCodes As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnableWarningDirectiveTriviaSyntax(kind, errors, annotations, hashToken, enableKeyword, warningKeyword, if(errorCodes IsNot Nothing, errorCodes.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnableWarningDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As EnableWarningDirectiveTriviaSyntax
            return Update(hashToken, Me.EnableKeyword, Me.WarningKeyword, Me.ErrorCodes)
        End Function

        Public ReadOnly Property EnableKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnableWarningDirectiveTriviaSyntax)._enableKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the EnableKeyword property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithEnableKeyword(enableKeyword as SyntaxToken) As EnableWarningDirectiveTriviaSyntax
            return Update(Me.HashToken, enableKeyword, Me.WarningKeyword, Me.ErrorCodes)
        End Function

        Public ReadOnly Property WarningKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.EnableWarningDirectiveTriviaSyntax)._warningKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WarningKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithWarningKeyword(warningKeyword as SyntaxToken) As EnableWarningDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.EnableKeyword, warningKeyword, Me.ErrorCodes)
        End Function

        Public ReadOnly Property ErrorCodes As SeparatedSyntaxList(Of IdentifierNameSyntax)
            Get
                Dim listNode = GetRed(_errorCodes, 3)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of IdentifierNameSyntax)(listNode, Me.GetChildIndex(3))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ErrorCodes property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithErrorCodes(errorCodes as SeparatedSyntaxList(Of IdentifierNameSyntax)) As EnableWarningDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.EnableKeyword, Me.WarningKeyword, errorCodes)
        End Function

        Public Shadows Function AddErrorCodes(ParamArray items As IdentifierNameSyntax()) As EnableWarningDirectiveTriviaSyntax
            Return Me.WithErrorCodes(Me.ErrorCodes.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 3
                    Return Me._errorCodes
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 3
                    Return GetRed(_errorCodes, 3)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitEnableWarningDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitEnableWarningDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="enableKeyword">
        ''' The value for the EnableKeyword property.
        ''' </param>
        ''' <param name="warningKeyword">
        ''' The value for the WarningKeyword property.
        ''' </param>
        ''' <param name="errorCodes">
        ''' The value for the ErrorCodes property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, enableKeyword As SyntaxToken, warningKeyword As SyntaxToken, errorCodes As SeparatedSyntaxList(Of IdentifierNameSyntax)) As EnableWarningDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse enableKeyword <> Me.EnableKeyword OrElse warningKeyword <> Me.WarningKeyword OrElse errorCodes <> Me.ErrorCodes Then
                Dim newNode = SyntaxFactory.EnableWarningDirectiveTrivia(hashToken, enableKeyword, warningKeyword, errorCodes)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents #Disable Warning pre-processing directive appearing in source.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.DisableWarningDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class DisableWarningDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax

        Friend _errorCodes as SyntaxNode

        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, disableKeyword As InternalSyntax.KeywordSyntax, warningKeyword As InternalSyntax.KeywordSyntax, errorCodes As SyntaxNode)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DisableWarningDirectiveTriviaSyntax(kind, errors, annotations, hashToken, disableKeyword, warningKeyword, if(errorCodes IsNot Nothing, errorCodes.Green, Nothing)), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DisableWarningDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As DisableWarningDirectiveTriviaSyntax
            return Update(hashToken, Me.DisableKeyword, Me.WarningKeyword, Me.ErrorCodes)
        End Function

        Public ReadOnly Property DisableKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DisableWarningDirectiveTriviaSyntax)._disableKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the DisableKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithDisableKeyword(disableKeyword as SyntaxToken) As DisableWarningDirectiveTriviaSyntax
            return Update(Me.HashToken, disableKeyword, Me.WarningKeyword, Me.ErrorCodes)
        End Function

        Public ReadOnly Property WarningKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.DisableWarningDirectiveTriviaSyntax)._warningKeyword, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the WarningKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithWarningKeyword(warningKeyword as SyntaxToken) As DisableWarningDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.DisableKeyword, warningKeyword, Me.ErrorCodes)
        End Function

        Public ReadOnly Property ErrorCodes As SeparatedSyntaxList(Of IdentifierNameSyntax)
            Get
                Dim listNode = GetRed(_errorCodes, 3)
                If listNode IsNot Nothing
                    Return new SeparatedSyntaxList(Of IdentifierNameSyntax)(listNode, Me.GetChildIndex(3))
                End If
                Return Nothing
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ErrorCodes property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithErrorCodes(errorCodes as SeparatedSyntaxList(Of IdentifierNameSyntax)) As DisableWarningDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.DisableKeyword, Me.WarningKeyword, errorCodes)
        End Function

        Public Shadows Function AddErrorCodes(ParamArray items As IdentifierNameSyntax()) As DisableWarningDirectiveTriviaSyntax
            Return Me.WithErrorCodes(Me.ErrorCodes.AddRange(items))
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case 3
                    Return Me._errorCodes
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case 3
                    Return GetRed(_errorCodes, 3)
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitDisableWarningDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitDisableWarningDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="disableKeyword">
        ''' The value for the DisableKeyword property.
        ''' </param>
        ''' <param name="warningKeyword">
        ''' The value for the WarningKeyword property.
        ''' </param>
        ''' <param name="errorCodes">
        ''' The value for the ErrorCodes property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, disableKeyword As SyntaxToken, warningKeyword As SyntaxToken, errorCodes As SeparatedSyntaxList(Of IdentifierNameSyntax)) As DisableWarningDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse disableKeyword <> Me.DisableKeyword OrElse warningKeyword <> Me.WarningKeyword OrElse errorCodes <> Me.ErrorCodes Then
                Dim newNode = SyntaxFactory.DisableWarningDirectiveTrivia(hashToken, disableKeyword, warningKeyword, errorCodes)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an #r directive appearing in scripts.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.ReferenceDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class ReferenceDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax, referenceKeyword As InternalSyntax.KeywordSyntax, file As InternalSyntax.StringLiteralTokenSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReferenceDirectiveTriviaSyntax(kind, errors, annotations, hashToken, referenceKeyword, file), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReferenceDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As ReferenceDirectiveTriviaSyntax
            return Update(hashToken, Me.ReferenceKeyword, Me.File)
        End Function

        Public ReadOnly Property ReferenceKeyword As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReferenceDirectiveTriviaSyntax)._referenceKeyword, Me.GetChildPosition(1), Me.GetChildIndex(1))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the ReferenceKeyword property changed to the
        ''' specified value. Returns this instance if the specified value is the same as
        ''' the current value.
        ''' </summary>
        Public Shadows Function WithReferenceKeyword(referenceKeyword as SyntaxToken) As ReferenceDirectiveTriviaSyntax
            return Update(Me.HashToken, referenceKeyword, Me.File)
        End Function

        Public ReadOnly Property File As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ReferenceDirectiveTriviaSyntax)._file, Me.GetChildPosition(2), Me.GetChildIndex(2))
            End Get
        End Property

        ''' <summary>
        ''' Returns a copy of this with the File property changed to the specified value.
        ''' Returns this instance if the specified value is the same as the current value.
        ''' </summary>
        Public Shadows Function WithFile(file as SyntaxToken) As ReferenceDirectiveTriviaSyntax
            return Update(Me.HashToken, Me.ReferenceKeyword, file)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Select case i
                Case Else
                    Return Nothing
            End Select
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitReferenceDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitReferenceDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        ''' <param name="referenceKeyword">
        ''' The value for the ReferenceKeyword property.
        ''' </param>
        ''' <param name="file">
        ''' The value for the File property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken, referenceKeyword As SyntaxToken, file As SyntaxToken) As ReferenceDirectiveTriviaSyntax
            If hashToken <> Me.HashToken OrElse referenceKeyword <> Me.ReferenceKeyword OrElse file <> Me.File Then
                Dim newNode = SyntaxFactory.ReferenceDirectiveTrivia(hashToken, referenceKeyword, file)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

    ''' <summary>
    ''' Represents an unrecognized pre-processing directive. This occurs when the
    ''' parser encounters a hash '#' token at the beginning of a physical line but does
    ''' recognize the text that follows as a valid Visual Basic pre-processing
    ''' directive.
    ''' </summary>
    ''' <remarks>
    ''' <para>This node is associated with the following syntax kinds:</para>
    ''' <list type="bullet">
    ''' <item><description><see cref="SyntaxKind.BadDirectiveTrivia"/></description></item>
    ''' </list>
    ''' </remarks>
    Public NotInheritable Class BadDirectiveTriviaSyntax
        Inherits DirectiveTriviaSyntax


        Friend Sub New(ByVal green As GreenNode, ByVal parent as SyntaxNode, ByVal startLocation As Integer)
            MyBase.New(green, parent, startLocation)
            Debug.Assert(green IsNot Nothing)
            Debug.Assert(startLocation >= 0)
        End Sub

        Friend Sub New(ByVal kind As SyntaxKind, ByVal errors as DiagnosticInfo(), ByVal annotations as SyntaxAnnotation(), hashToken As InternalSyntax.PunctuationSyntax)
            Me.New(New Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BadDirectiveTriviaSyntax(kind, errors, annotations, hashToken), Nothing, 0)
        End Sub

        ''' <summary>
        ''' The "#" token in a preprocessor directive.
        ''' </summary>
        Public Shadows ReadOnly Property HashToken As SyntaxToken
            Get
                return new SyntaxToken(Me, DirectCast(Me.Green, Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.BadDirectiveTriviaSyntax)._hashToken, Me.Position, 0)
            End Get
        End Property

        Friend Overrides Function GetHashTokenCore() As SyntaxToken
            Return Me.HashToken
        End Function

        Friend Overrides Function WithHashTokenCore(hashToken As SyntaxToken) As DirectiveTriviaSyntax
            Return WithHashToken(hashToken)
        End Function

        ''' <summary>
        ''' Returns a copy of this with the HashToken property changed to the specified
        ''' value. Returns this instance if the specified value is the same as the current
        ''' value.
        ''' </summary>
        Public Shadows Function WithHashToken(hashToken as SyntaxToken) As BadDirectiveTriviaSyntax
            return Update(hashToken)
        End Function

        Friend Overrides Function GetCachedSlot(i as Integer) as SyntaxNode
            If i = 0 Then
                Return Nothing
            Else
                Return Nothing
            End If
        End Function

        Friend Overrides Function GetNodeSlot(i as Integer) as SyntaxNode
            Return Nothing
        End Function

        Public Overrides Function Accept(Of TResult)(ByVal visitor As VisualBasicSyntaxVisitor(Of TResult)) As TResult
            Return visitor.VisitBadDirectiveTrivia(Me)
        End Function

        Public Overrides Sub Accept(ByVal visitor As VisualBasicSyntaxVisitor)
            visitor.VisitBadDirectiveTrivia(Me)
        End Sub


        ''' <summary>
        ''' Returns a copy of this with the specified changes. Returns this instance if
        ''' there are no actual changes.
        ''' </summary>
        ''' <param name="hashToken">
        ''' The value for the HashToken property.
        ''' </param>
        Public Function Update(hashToken As SyntaxToken) As BadDirectiveTriviaSyntax
            If hashToken <> Me.HashToken Then
                Dim newNode = SyntaxFactory.BadDirectiveTrivia(hashToken)
                Dim annotations = Me.GetAnnotations()
                If annotations IsNot Nothing AndAlso annotations.Length > 0
                    return newNode.WithAnnotations(annotations)
                End If
                Return newNode
            End If
            Return Me
        End Function

    End Class

End Namespace