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src/Compilers/CSharp/Portable/Syntax/SyntaxKindEqualityComparer.cs
33 строки
1 KB
Jared Parsons
generated move
28 сен 2020, 19:36
28 сен 2020, 19:36
1cca63b
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// Licensed to the .NET Foundation under one or more agreements. // The .NET Foundation licenses this file to you under the MIT license. // See the LICENSE file in the project root for more information. using System.Collections.Generic; namespace Microsoft.CodeAnalysis.CSharp { public static partial class SyntaxFacts { private sealed class SyntaxKindEqualityComparer : IEqualityComparer<SyntaxKind> { public bool Equals(SyntaxKind x, SyntaxKind y) { return x == y; } public int GetHashCode(SyntaxKind obj) { return (int)obj; } } /// <summary> /// A custom equality comparer for <see cref="SyntaxKind"/> /// </summary> /// <remarks> /// PERF: The framework specializes EqualityComparer for enums, but only if the underlying type is System.Int32 /// Since SyntaxKind's underlying type is System.UInt16, ObjectEqualityComparer will be chosen instead. /// </remarks> public static IEqualityComparer<SyntaxKind> EqualityComparer { get; } = new SyntaxKindEqualityComparer(); } }