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src/Compilers/CSharp/Portable/BoundTree/BoundIsPatternExpression.cs
34 строки
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AlekseyTs
Pattern matching: Implement value set for a union of types
07 дек 2025, 00:51
07 дек 2025, 00:51
3b33619
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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.Diagnostics; namespace Microsoft.CodeAnalysis.CSharp { internal partial class BoundIsPatternExpression { public BoundDecisionDag GetDecisionDagForLowering(CSharpCompilation compilation) { BoundDecisionDag decisionDag = this.ReachabilityDecisionDag; if (!decisionDag.SuitableForLowering) { bool negated = this.Pattern.IsNegated(out var innerPattern); Debug.Assert(negated == this.IsNegated); decisionDag = DecisionDagBuilder.CreateDecisionDagForIsPattern( compilation, this.Syntax, this.Expression, innerPattern, HasUnionMatching, this.WhenTrueLabel, this.WhenFalseLabel, BindingDiagnosticBag.Discarded, forLowering: true); Debug.Assert(decisionDag.SuitableForLowering); } return decisionDag; } } }