private ImmutableArray<EnvDTE.CodeElement> EnumerateOverloads()
{
var symbol = (IMethodSymbol)ParentElement.LookupSymbol();
// Only methods and constructors can be overloaded. However, all functions
// can successfully return a collection of overloaded functions; if not
// really overloaded, the collection contains just the original function.
if (symbol.MethodKind != MethodKind.Ordinary &&
symbol.MethodKind != MethodKind.Constructor)
{
return ImmutableArray.Create((EnvDTE.CodeElement)Parent);
}
var overloadsBuilder = ImmutableArray.CreateBuilder<EnvDTE.CodeElement>();
foreach (var method in symbol.ContainingType.GetMembers(symbol.Name))
{
if (method.Kind != SymbolKind.Method)
{
continue;
}
var location = method.Locations.FirstOrDefault(l => l.IsInSource);
if (location != null)
{
var tree = location.SourceTree;
var document = this.Workspace.CurrentSolution.GetDocument(tree);
var fileCodeModelObject = this.Workspace.GetFileCodeModel(document.Id);
var fileCodeModel = ComAggregate.GetManagedObject<FileCodeModel>(fileCodeModelObject);
var element = fileCodeModel.CodeElementFromPosition(location.SourceSpan.Start, EnvDTE.vsCMElement.vsCMElementFunction);
if (element != null)
{
overloadsBuilder.Add(element);
}
}
}
return overloadsBuilder.ToImmutable();
}
