private static IEnumerable GetChildren(ITypeElement typeElement, bool instanceVisible)
{
// Obtain language service for the type
PsiLanguageType language = PresentationUtil.GetPresentationLanguage(typeElement);
if (language.IsNullOrUnknown())
{
return(Enumerable.Empty <DeclaredElementEnvoy <ITypeMember> >());
}
LanguageService languageService = language.LanguageService();
if (languageService == null)
{
return(Enumerable.Empty <DeclaredElementEnvoy <ITypeMember> >());
}
// Get symbol table for the typeElement and filter it with OverriddenFilter
// This filter removes all but leaf members for override chains
ISymbolTable symbolTable = TypeFactory.CreateType(typeElement).GetSymbolTable(typeElement.Module);
symbolTable = symbolTable.Filter(OverriddenFilter.INSTANCE);
// Obtain ITypeElement for System.Object
// We don't want ToString(), GetHashCode(), GetType() and Equals() to pollute tree view
ITypeElement objectType = typeElement.Module.GetPredefinedType(typeElement.ResolveContext).Object.GetTypeElement();
var children = new List <DeclaredElementEnvoy <ITypeMember> >();
foreach (string name in symbolTable.Names())
{
foreach (ISymbolInfo info in symbolTable.GetSymbolInfos(name))
{
// Select all ITypeMembers from symbol table
var member = info.GetDeclaredElement() as ITypeMember;
if (member == null)
{
continue;
}
// Checks that member is visible in language. For example, get_Property() member is not visible in C#
if (!languageService.IsTypeMemberVisible(member))
{
continue;
}
// Do not show members of System.Object
// This doesn't hide respective overrides, though
if (Equals(member.GetContainingType(), objectType))
{
continue;
}
// Checks that member is not "synthetic". Synthetic members are generated by ReSharper to support
// generative languages, like ASP.NET
if (member.IsSynthetic())
{
continue;
}
// Checks if member should be displayed according to its accessibility
AccessibilityDomain.AccessibilityDomainType access = member.AccessibilityDomain.DomainType;
if (access == AccessibilityDomain.AccessibilityDomainType.PRIVATE)
{
continue;
}
// If we want only instance members, filter further
if (instanceVisible)
{
// Don't show nested types
if (member is ITypeElement)
{
continue;
}
// Don't show constructors
if (member is IConstructor)
{
continue;
}
// hide static, protected and "protected internal" members
if (member.IsStatic)
{
continue;
}
if (access == AccessibilityDomain.AccessibilityDomainType.PROTECTED)
{
continue;
}
if (access == AccessibilityDomain.AccessibilityDomainType.PROTECTED_AND_INTERNAL)
{
continue;
}
}
// It passed all filters! Create an envoy and add to collection
children.Add(new DeclaredElementEnvoy <ITypeMember>(member));
}
}
return(children);
}
