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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Diagnostics;
using ILLink.RoslynAnalyzer.DataFlow;
using ILLink.Shared.TrimAnalysis;
using Microsoft.CodeAnalysis;
namespace ILLink.RoslynAnalyzer.TrimAnalysis
{
internal readonly record struct TrimAnalysisReflectionAccessPattern
{
public IMethodSymbol ReferencedMethod { get; init; }
public IOperation Operation { get; init; }
public ISymbol OwningSymbol { get; init; }
public FeatureContext FeatureContext { get; init; }
public TrimAnalysisReflectionAccessPattern(
IMethodSymbol referencedMethod,
IOperation operation,
ISymbol owningSymbol,
FeatureContext feature)
{
ReferencedMethod = referencedMethod;
Operation = operation;
OwningSymbol = owningSymbol;
FeatureContext = feature.DeepCopy();
}
public TrimAnalysisReflectionAccessPattern Merge(
FeatureContextLattice featureContextLattice,
TrimAnalysisReflectionAccessPattern other)
{
Debug.Assert(SymbolEqualityComparer.Default.Equals(ReferencedMethod, other.ReferencedMethod));
Debug.Assert(Operation == other.Operation);
Debug.Assert(SymbolEqualityComparer.Default.Equals(OwningSymbol, other.OwningSymbol));
return new TrimAnalysisReflectionAccessPattern(
ReferencedMethod,
Operation,
OwningSymbol,
featureContextLattice.Meet(FeatureContext, other.FeatureContext));
}
public void ReportDiagnostics(DataFlowAnalyzerContext context, Action<Diagnostic> reportDiagnostic)
{
var location = Operation.Syntax.GetLocation();
var reflectionAccessAnalyzer = new ReflectionAccessAnalyzer(reportDiagnostic, typeHierarchyType: null);
if (context.EnableTrimAnalyzer &&
!OwningSymbol.IsInRequiresUnreferencedCodeAttributeScope(out _) &&
!FeatureContext.IsEnabled(RequiresUnreferencedCodeAnalyzer.FullyQualifiedRequiresUnreferencedCodeAttribute))
{
reflectionAccessAnalyzer.GetDiagnosticsForReflectionAccessToDAMOnMethod(location, ReferencedMethod);
}
DiagnosticContext diagnosticContext = new(location, reportDiagnostic);
foreach (var requiresAnalyzer in context.EnabledRequiresAnalyzers)
requiresAnalyzer.CheckAndCreateRequiresDiagnostic(Operation, ReferencedMethod, OwningSymbol, context, FeatureContext, diagnosticContext);
}
}
}
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