private static void AnalyzeObjectCreationExpressionStatement(SyntaxNodeAnalysisContext context)
{
if (!(context.Node is ObjectCreationExpressionSyntax node))
{
return; //something went wrong
}
var symbolInfo = context.SemanticModel.GetSymbolInfo(node);
var t = (symbolInfo.Symbol as IMethodSymbol)?.ReceiverType as INamedTypeSymbol;
var ctx = CustomAnalysisContext.WithOriginalNode(context, DisposableSource.ObjectCreation, t, Detector, Configuration);
if (!ctx.CouldDetectType())
{
}
else if (!ctx.IsDisposableOrImplementsDisposable())
{
return;
}
else if (node.IsParentADisposeCallIgnoringParenthesis())
{
return; //(new MemoryStream()).Dispose()
}
else if (Detector.IsIgnoredTypeOrImplementsIgnoredInterface(ctx.Type))
{
}
else if (node.IsReturnedInProperty())
{
AnalyzeNodeInReturnStatementOfProperty(ctx);
}
else if (node.IsPartOfReturnStatementInBlock())
{
} // return new MemoryStream() or return Task.FromResult(new MemoryStream())
else if (node.IsPartOfYieldReturnStatementInBlock())
{
} //yield return new MemoryStream()
else if (node.IsArrowExpressionClauseOfMethod())
{
} // void Create()=>CreateMemoryStream()
else if (node.IsReturnValueInLambdaExpression())
{
}
else if (node.IsReturnedLaterWithinMethod())
{
}
else if (node.IsReturnedLaterWithinParenthesizedLambdaExpression())
{
}
else if (node.IsPartOfMethodCall())
{
AnalyzePartOfMethodCall(ctx);
}
else if (node.IsMaybePartOfMethodChainUsingTrackingExtensionMethod())
{
var methodInvocation = node.Parent.Parent as InvocationExpressionSyntax;
if (Detector.IsTrackingMethodCall(methodInvocation, context.SemanticModel))
{
return;
}
}
else if (node.IsArgumentInObjectCreation())
{
AnalyzeNodeInArgumentList(ctx);
}
else if (node.IsPartIfArrayInitializerThatIsPartOfObjectCreation())
{
var objectCreation = node.Parent.Parent.Parent.Parent.Parent as ObjectCreationExpressionSyntax;
CheckIfObjectCreationTracksNode(ctx, objectCreation);
}
else if (node.IsDescendantOfUsingHeader())
{
} //this have to be checked after IsArgumentInObjectCreation
else if (node.IsDescendantOfVariableDeclarator())
{
AnalyzeNodeWithinVariableDeclarator(ctx);
}
else if (node.IsPartOfAssignmentExpression())
{
AnalyzeNodeInAssignmentExpression(ctx);
}
else if (node.IsPartOfPropertyExpressionBody())
{
AnalyzeNodeInAutoPropertyOrPropertyExpressionBody(ctx);
}
else if (node.IsPartOfAutoProperty())
{
AnalyzeNodeInAutoPropertyOrPropertyExpressionBody(ctx);
}
else
{
ctx.ReportNotDisposedAnonymousObject(); //new MemoryStream();
}
}
private void ObjectCreationAction(SyntaxNodeAnalysisContext context)
{
var node = context.Node as ObjectCreationExpressionSyntax;
if (node == null)
{
return; //something went wrong
}
var symbolInfo = context.SemanticModel.GetSymbolInfo(node);
var type = (symbolInfo.Symbol as IMethodSymbol)?.ReceiverType as INamedTypeSymbol;
if (type == null)
{
}
else if (!type.IsDisposeableOrImplementsDisposable())
{
return;
}
else if (node.IsParentADisposeCallIgnoringParenthesis())
{
return; //(new MemoryStream()).Dispose()
}
else if (Detector.IsIgnoredTypeOrImplementsIgnoredInterface(type))
{
}
else if (node.IsReturnedInProperty())
{
AnalyseNodeInReturnStatementOfProperty(context, node, DisposableSource.ObjectCreation);
}
else if (node.IsPartOfReturnStatementInBlock())
{
} // return new MemoryStream() or return Task.FromResult(new MemoryStream())
else if (node.IsArrowExpressionClauseOfMethod())
{
} // void Create()=>CreateMemoryStream()
else if (node.IsReturnValueInLambdaExpression())
{
}
else if (node.IsReturnedLaterWithinMethod())
{
}
else if (node.IsReturnedLaterWithinParenthesizedLambdaExpression())
{
}
else if (!type.IsDisposeableOrImplementsDisposable())
{
}
else if (node.IsPartOfMethodCall())
{
var methodInvocation = node.Parent.Parent.Parent as InvocationExpressionSyntax;
if (Detector.IsTrackingMethodCall(methodInvocation, context.SemanticModel))
{
return;
}
var rule = GetRule(DiagnosticId, CurrentSeverity);
context.ReportNotDisposedAnonymousObject(rule, DisposableSource.ObjectCreation);
}
else if (node.IsMaybePartOfMethodChainUsingTrackingExtensionMethod())
{
var methodInvokation = node.Parent.Parent as InvocationExpressionSyntax;
if (Detector.IsTrackingMethodCall(methodInvokation, context.SemanticModel))
{
return;
}
}
else if (node.IsArgumentInObjectCreation())
{
AnalyseNodeInArgumentList(context, node, DisposableSource.ObjectCreation);
}
else if (node.IsPartIfArrayInitializerThatIsPartOfObjectCreation())
{
var objectCreation = node.Parent.Parent.Parent.Parent.Parent as ObjectCreationExpressionSyntax;
CheckIfObjectCreationTracksNode(context, objectCreation, DisposableSource.ObjectCreation);
}
else if (node.IsDescendantOfUsingHeader())
{
} //this have to be checked after IsArgumentInObjectCreation
else if (node.IsDescendantOfVariableDeclarator())
{
AnalyseNodeWithinVariableDeclarator(context, node, DisposableSource.ObjectCreation);
}
else if (node.IsPartOfAssignmentExpression())
{
AnalyseNodeInAssignmentExpression(context, node, DisposableSource.ObjectCreation);
}
else if (node.IsPartOfPropertyExpressionBody())
{
AnalyseNodeInAutoPropertyOrPropertyExpressionBody(context, node, DisposableSource.ObjectCreation);
}
else if (node.IsPartOfAutoProperty())
{
AnalyseNodeInAutoPropertyOrPropertyExpressionBody(context, node, DisposableSource.ObjectCreation);
}
else
{
//new MemoryStream();
var rule = GetRule(DiagnosticId, CurrentSeverity);
context.ReportNotDisposedAnonymousObject(rule, DisposableSource.ObjectCreation);
}
}
