private (SyntaxNode member, string memberName, string signature) GetMemberContainer(Cache doc, SyntaxNode node)
{
var method = GetContainer <MethodDeclarationSyntax>(node);
if (method != null)
{
return(method, GetSymbol(doc, method)?.Name, GetSignature(doc, method));
}
var constructor = GetContainer <ConstructorDeclarationSyntax>(node);
if (constructor != null)
{
return(constructor, ".ctor", GetSignature(doc, constructor));
}
var property = GetContainer <PropertyDeclarationSyntax>(node);
if (property != null)
{
var accessor = GetContainer <AccessorDeclarationSyntax>(node);
if (accessor != null)
{
var propertySymbol = GetSymbol(doc, accessor);
return(property, propertySymbol.Name, GetSignature(doc, accessor));
}
var arrowExpression = GetContainer <ArrowExpressionClauseSyntax>(node);
if (arrowExpression != null)
{
var propertySymbol = GetSymbol(doc, property) as IPropertySymbol;
return(property, propertySymbol.GetMethod.Name, GetSignature(doc, property));
}
}
var indexer = GetContainer <IndexerDeclarationSyntax>(node);
if (indexer != null)
{
var indexerSymbol = GetSymbol(doc, indexer) as IPropertySymbol;
return(indexer, indexerSymbol.Name.Replace("this[]", "get_Item"), GetSignature(doc, indexer));
}
var operatorContainer = GetContainer <OperatorDeclarationSyntax>(node);
if (operatorContainer != null)
{
var operatorSymbol = GetSymbol(doc, operatorContainer);
return(operatorContainer, operatorSymbol.Name, SignatureResolver.BuildSignature((IMethodSymbol)operatorSymbol));
}
return(null, null, null);
}
private string GetSignature(Cache doc, SyntaxNode node)
{
var symbol = GetSymbol(doc, node);
if (symbol == null)
{
return(null);
}
if (symbol.Kind == SymbolKind.Method)
{
return(SignatureResolver.BuildSignature((IMethodSymbol)symbol));
}
if (symbol.Kind == SymbolKind.Property)
{
return(SignatureResolver.BuildSignature((IPropertySymbol)symbol));
}
return(null);
}
private MethodCall ResolveMethod(Cache doc, SyntaxNode node, ISymbol symbol)
{
string methodName = symbol.Name;
string typeName = symbol.ContainingType.GetFullTypename();
var methodSymbol = (IMethodSymbol)symbol;
string signature = SignatureResolver.BuildSignature(methodSymbol);
MethodCall result = GetMethodCall(doc, node, methodName, typeName, signature);
if (result != null)
{
return(result);
}
if (!symbol.IsOverride || methodSymbol.OverriddenMethod == null)
{
return(null);
}
return(ResolveMethod(doc, node, methodSymbol.OverriddenMethod));
}
public MethodCall GetMethodCall(Cache doc, TextSpan textSpan)
{
if (AnalyzerModel.CallGraph == null)
{
return(null);
}
var node = GetExpression(doc.SyntaxRoot.FindNode(textSpan));
if (node is ConstructorDeclarationSyntax || node is MethodDeclarationSyntax || node is PropertyDeclarationSyntax)
{
return(null);
}
var symbol = GetSymbol(doc, node);
if (symbol == null)
{
return(null);
}
if (symbol.Kind == SymbolKind.Local && node.Parent is ElementAccessExpressionSyntax)
{
symbol = GetSymbol(doc, node.Parent);
if (symbol == null)
{
return(null);
}
}
if (symbol.Kind == SymbolKind.Method)
{
return(ResolveMethod(doc, node, symbol));
}
if (symbol.Kind == SymbolKind.Property)
{
string methodName = GetPropertyAccessorMethod(node, symbol);
string typeName = symbol.ContainingType.GetFullTypename();
return(GetMethodCall(doc, node, methodName, typeName));
}
if (symbol.Kind == SymbolKind.NamedType)
{
var objectCreationExpression = node.FirstAncestorOrSelf <ObjectCreationExpressionSyntax>();
if (objectCreationExpression == null)
{
return(null);
}
var originalDefinition = symbol.OriginalDefinition;
symbol = doc.SemanticModel.GetSymbolInfo(objectCreationExpression).Symbol;
if (originalDefinition != symbol.ContainingType.OriginalDefinition)
{
return(null);
}
string methodName = ".ctor";
string typeName = symbol.ContainingType.GetFullTypename();
string signature = SignatureResolver.BuildSignature((IMethodSymbol)symbol);
return(GetMethodCall(doc, node, methodName, typeName));
}
return(null);
}