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src/System.Management.Automation/engine/interpreter/NumericConvertInstruction.cs
285 строк
12 KB
Ilya
Cleanup: use the built-in type alias (#10882)
06 ноя 2019, 06:47
Не верифицирован
06 ноя 2019, 06:47
d58a82a
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/* **************************************************************************** * * Copyright (c) Microsoft Corporation. * * This source code is subject to terms and conditions of the Apache License, Version 2.0. A * copy of the license can be found in the License.html file at the root of this distribution. If * you cannot locate the Apache License, Version 2.0, please send an email to * dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound * by the terms of the Apache License, Version 2.0. * * You must not remove this notice, or any other, from this software. * * * ***************************************************************************/ namespace System.Management.Automation.Interpreter { internal abstract class NumericConvertInstruction : Instruction { internal readonly TypeCode _from, _to; protected NumericConvertInstruction(TypeCode from, TypeCode to) { _from = from; _to = to; } public override int ConsumedStack { get { return 1; } } public override int ProducedStack { get { return 1; } } public override string ToString() { return InstructionName + "(" + _from + "->" + _to + ")"; } [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1034:NestedTypesShouldNotBeVisible")] internal sealed class Unchecked : NumericConvertInstruction { public override string InstructionName { get { return "UncheckedConvert"; } } public Unchecked(TypeCode from, TypeCode to) : base(from, to) { } public override int Run(InterpretedFrame frame) { frame.Push(Convert(frame.Pop())); return +1; } private object Convert(object obj) { switch (_from) { case TypeCode.Byte: return ConvertInt32((byte)obj); case TypeCode.SByte: return ConvertInt32((sbyte)obj); case TypeCode.Int16: return ConvertInt32((Int16)obj); case TypeCode.Char: return ConvertInt32((char)obj); case TypeCode.Int32: return ConvertInt32((Int32)obj); case TypeCode.Int64: return ConvertInt64((Int64)obj); case TypeCode.UInt16: return ConvertInt32((UInt16)obj); case TypeCode.UInt32: return ConvertInt64((UInt32)obj); case TypeCode.UInt64: return ConvertUInt64((UInt64)obj); case TypeCode.Single: return ConvertDouble((Single)obj); case TypeCode.Double: return ConvertDouble((double)obj); default: throw Assert.Unreachable; } } private object ConvertInt32(int obj) { unchecked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } private object ConvertInt64(Int64 obj) { unchecked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } private object ConvertUInt64(UInt64 obj) { unchecked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } private object ConvertDouble(double obj) { unchecked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } } [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1034:NestedTypesShouldNotBeVisible")] internal sealed class Checked : NumericConvertInstruction { public override string InstructionName { get { return "CheckedConvert"; } } public Checked(TypeCode from, TypeCode to) : base(from, to) { } public override int Run(InterpretedFrame frame) { frame.Push(Convert(frame.Pop())); return +1; } private object Convert(object obj) { switch (_from) { case TypeCode.Byte: return ConvertInt32((byte)obj); case TypeCode.SByte: return ConvertInt32((sbyte)obj); case TypeCode.Int16: return ConvertInt32((Int16)obj); case TypeCode.Char: return ConvertInt32((char)obj); case TypeCode.Int32: return ConvertInt32((Int32)obj); case TypeCode.Int64: return ConvertInt64((Int64)obj); case TypeCode.UInt16: return ConvertInt32((UInt16)obj); case TypeCode.UInt32: return ConvertInt64((UInt32)obj); case TypeCode.UInt64: return ConvertUInt64((UInt64)obj); case TypeCode.Single: return ConvertDouble((Single)obj); case TypeCode.Double: return ConvertDouble((double)obj); default: throw Assert.Unreachable; } } private object ConvertInt32(int obj) { checked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } private object ConvertInt64(Int64 obj) { checked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } private object ConvertUInt64(UInt64 obj) { checked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } private object ConvertDouble(double obj) { checked { switch (_to) { case TypeCode.Byte: return (byte)obj; case TypeCode.SByte: return (sbyte)obj; case TypeCode.Int16: return (Int16)obj; case TypeCode.Char: return (char)obj; case TypeCode.Int32: return (Int32)obj; case TypeCode.Int64: return (Int64)obj; case TypeCode.UInt16: return (UInt16)obj; case TypeCode.UInt32: return (UInt32)obj; case TypeCode.UInt64: return (UInt64)obj; case TypeCode.Single: return (Single)obj; case TypeCode.Double: return (double)obj; default: throw Assert.Unreachable; } } } } } }