protected override void AnalyzeNode(SyntaxNodeAnalysisContext context)
{
AnalyzerCanContinueMethodResult result = GetContinuationResult(context);
if (!result.CanContinue)
{
return;
}
INamedTypeSymbol taskType = context.Compilation.GetTypeByMetadataName(_taskType);
INamedTypeSymbol voidType = context.Compilation.GetSpecialType(SpecialType.System_Void);
if (!Equals(result.ReturnTypeSymbol, voidType) &&
result.ReturnTypeSymbol != null &&
(result.MethodSymbol.IsAsync ||
Equals(result.ReturnTypeSymbol, taskType) ||
string.Equals(_genericTaskType, result.ReturnTypeSymbol.ConstructedFrom.ToString())))
{
INamedTypeSymbol cancellationToken = context.Compilation.GetTypeByMetadataName(_cancellationTokenType);
IParameterSymbol cancellationTokenParameter = result.MethodSymbol.Parameters.FirstOrDefault(d => d.Type == cancellationToken);
if (cancellationTokenParameter == null)
{
ReportDiagnosticResult(context, context.Node);
}
}
}
protected override void AnalyzeNode(SyntaxNodeAnalysisContext context)
{
AnalyzerCanContinueMethodResult result = GetContinuationResult(context);
if (!result.CanContinue)
{
return;
}
INamedTypeSymbol voidType = context.Compilation.GetSpecialType(SpecialType.System_Void);
if (result.MethodSymbol.IsAsync &&
Equals(result.MethodSymbol?.ReturnType, voidType))
{
if (!(context.ContainingSymbol is IMethodSymbol currentMethodSymbol))
{
return;
}
INamedTypeSymbol cancellationToken = context.Compilation.GetTypeByMetadataName(_cancellationTokenType);
IParameterSymbol currentMethodCancellationToken = currentMethodSymbol.Parameters.FirstOrDefault(d => d.Type == cancellationToken);
IParameterSymbol cancellationTokenParameter = result.MethodSymbol.Parameters.FirstOrDefault(d => d.Type == cancellationToken);
if (cancellationTokenParameter == null && currentMethodCancellationToken != null)
{
ReportDiagnosticResult(context, context.Node);
}
}
}
protected override void AnalyzeNode(SyntaxNodeAnalysisContext context)
{
AnalyzerCanContinueMethodResult result = GetContinuationResult(context);
if (!result.CanContinue)
{
return;
}
INamedTypeSymbol voidType = context.Compilation.GetSpecialType(SpecialType.System_Void);
if (result.MethodSymbol.IsAsync &&
Equals(result.MethodSymbol?.ReturnType, voidType) &&
!result.MethodSymbol.Name.EndsWith(_asyncSuffix))
{
ReportDiagnosticResult(context, context.Node);
}
}
protected override void AnalyzeSymbol(SymbolAnalysisContext context)
{
AnalyzerCanContinueMethodResult result = GetContinuationResult(context);
if (!result.CanContinue)
{
return;
}
INamedTypeSymbol taskType = context.Compilation.GetTypeByMetadataName(_taskType);
INamedTypeSymbol voidType = context.Compilation.GetSpecialType(SpecialType.System_Void);
if (!Equals(result.ReturnTypeSymbol, voidType) &&
result.ReturnTypeSymbol != null &&
(result.MethodSymbol.IsAsync ||
Equals(result.ReturnTypeSymbol, taskType) ||
string.Equals(_genericTaskType, result.ReturnTypeSymbol.ConstructedFrom.ToString())) &&
!result.MethodSymbol.Name.EndsWith(_asyncSuffix))
{
ReportDiagnosticResult(context, context.Symbol);
}
}
protected override void AnalyzeSymbol(SymbolAnalysisContext context)
{
AnalyzerCanContinueMethodResult result = GetContinuationResult(context);
if (!result.CanContinue)
{
return;
}
List <IParameterSymbol> parameters = result.MethodSymbol.Parameters.ToList();
if (parameters.Count <= 1)
{
return;
}
INamedTypeSymbol cancellationToken = context.Compilation.GetTypeByMetadataName(_cancellationTokenType);
IParameterSymbol cancellationTokenParameter = parameters.SingleOrDefault(parameterSymbol => Equals(parameterSymbol.Type, cancellationToken));
if (cancellationTokenParameter == null)
{
return;
}
int index = parameters.IndexOf(cancellationTokenParameter);
if (index == -1)
{
return;
}
if (index != parameters.Count - 1)
{
ReportDiagnosticResult(context, cancellationTokenParameter);
}
}
