public override void Initialize(AnalysisContext context)
{
context.EnableConcurrentExecution();
context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze);
context.RegisterCompilationStartAction(compilationStartAnalysisContext =>
{
INamedTypeSymbol?requiredAttributeType = null;
if (RequiresAttributeOnMethod && (requiredAttributeType = GetRequiredAttributeType(compilationStartAnalysisContext.Compilation)) == null)
{
return;
}
var disallowedCatchTypes = GetDisallowedCatchTypes(compilationStartAnalysisContext.Compilation);
compilationStartAnalysisContext.RegisterOperationBlockAction(operationBlockAnalysisContext =>
{
if (operationBlockAnalysisContext.OwningSymbol.Kind != SymbolKind.Method)
{
return;
}
var method = (IMethodSymbol)operationBlockAnalysisContext.OwningSymbol;
if (RequiresAttributeOnMethod && !method.HasAttribute(requiredAttributeType))
{
return;
}
if (_allowExcludedSymbolNames &&
operationBlockAnalysisContext.Options.IsConfiguredToSkipAnalysis(SupportedDiagnostics[0], method, operationBlockAnalysisContext.Compilation))
{
return;
}
foreach (var operation in operationBlockAnalysisContext.OperationBlocks)
{
var walker = new DisallowGeneralCatchUnlessRethrowWalker(IsDisallowedCatchType, _shouldCheckLambdas);
walker.Visit(operation);
foreach (var catchClause in walker.CatchClausesForDisallowedTypesWithoutRethrow)
{
operationBlockAnalysisContext.ReportDiagnostic(CreateDiagnostic(method, catchClause.Syntax.GetFirstToken()));
}
}
bool IsDisallowedCatchType(INamedTypeSymbol type) =>
disallowedCatchTypes.Contains(type) ||
IsConfiguredDisallowedExceptionType(type, method, compilationStartAnalysisContext.Compilation,
compilationStartAnalysisContext.Options, compilationStartAnalysisContext.CancellationToken);
});
});
}
public override void Initialize(AnalysisContext analysisContext)
{
analysisContext.EnableConcurrentExecution();
analysisContext.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze);
analysisContext.RegisterCompilationStartAction(compilationStartAnalysisContext =>
{
INamedTypeSymbol requiredAttributeType = null;
if (RequiresAttributeOnMethod && (requiredAttributeType = GetRequiredAttributeType(compilationStartAnalysisContext.Compilation)) == null)
{
return;
}
var disallowedCatchTypes = GetDisallowedCatchTypes(compilationStartAnalysisContext.Compilation);
compilationStartAnalysisContext.RegisterOperationBlockAction(operationBlockAnalysisContext =>
{
if (operationBlockAnalysisContext.OwningSymbol.Kind != SymbolKind.Method)
{
return;
}
var method = (IMethodSymbol)operationBlockAnalysisContext.OwningSymbol;
if (RequiresAttributeOnMethod && !MethodHasAttribute(method, requiredAttributeType))
{
return;
}
foreach (var operation in operationBlockAnalysisContext.OperationBlocks)
{
var walker = new DisallowGeneralCatchUnlessRethrowWalker(disallowedCatchTypes, _shouldCheckLambdas);
walker.Visit(operation);
foreach (var catchClause in walker.CatchClausesForDisallowedTypesWithoutRethrow)
{
operationBlockAnalysisContext.ReportDiagnostic(CreateDiagnostic(method, catchClause.Syntax));
}
}
});
});
}
