private void Visit(MemberAccessExpressionSyntax invocation)
{
if (invocation.Expression is IdentifierNameSyntax identifierName)
{
string callerTypeName;
SemanticModel semanticModel;
MethodDeclarationSyntax methodHost = invocation.GetParent <MethodDeclarationSyntax>();
ConstructorDeclarationSyntax constructorHost = invocation.GetParent <ConstructorDeclarationSyntax>();
if (methodHost != null)
{
callerTypeName = methodHost.GetParent <ClassDeclarationSyntax>().Identifier.ValueText;
semanticModel = compilation.GetSemanticModel(methodHost.SyntaxTree, true);
}
else if (constructorHost != null)
{
callerTypeName = constructorHost.GetParent <ClassDeclarationSyntax>().Identifier.ValueText;
semanticModel = compilation.GetSemanticModel(constructorHost.SyntaxTree, true);
}
else
{
base.Visit(invocation);
return;
}
string targetTypeName;
string targetName;
string returnTypeName;
if (ModelExtensions.GetTypeInfo(semanticModel, identifierName).Type == null)
{
// same type as caller
targetTypeName = callerTypeName;
targetName = identifierName.Identifier.ValueText;
returnTypeName = ModelExtensions.GetTypeInfo(semanticModel, invocation).Type?.ToString().Split('.').Last() ?? "void";
}
else if (ModelExtensions.GetTypeInfo(semanticModel, identifierName).Type is INamedTypeSymbol targetType)
{
targetTypeName = targetType.ToString();
targetName = invocation.TryGetInferredMemberName();
returnTypeName = ModelExtensions.GetTypeInfo(semanticModel, invocation).Type?.ToString().Split('.').Last() ?? "void";
}
else
{
base.Visit(invocation);
return;
}
string command = $"{Indent}{callerTypeName} -> {targetTypeName}: {targetName}";
AddCommand(command);
base.Visit(invocation);
command = $"{Indent}{targetTypeName} --> {callerTypeName}: {returnTypeName}";
AddCommand(command);
}
}