// Can be removed if https://github.com/dotnet/roslyn/issues/67 gets resolved
// Modeled after Sandcastle implementation: http://tunnelvisionlabs.github.io/SHFB/docs-master/XMLCommentsGuide/html/86453FFB-B978-4A2A-9EB5-70E118CA8073.htm
private void ProcessInheritDoc(XElement root, ISymbol currentSymbol, List <XElement> inheritDocElements, HashSet <string> inheritedSymbolCommentIds)
{
if (inheritDocElements.Count > 0)
{
// Gather the documents (first in the list takes precedence)
List <ISymbol> inheritedSymbols = new List <ISymbol>();
foreach (XElement inheritDocElement in inheritDocElements)
{
// Remove from the parent
inheritDocElement.Remove();
// Locate the appropriate symbol
string inheritDocElementCref = inheritDocElement.Attribute("cref")?.Value;
if (inheritDocElementCref == null && inheritedSymbolCommentIds.Add(currentSymbol.GetDocumentationCommentId()))
{
INamedTypeSymbol currentTypeSymbol = currentSymbol as INamedTypeSymbol;
IMethodSymbol currentMethodSymbol = currentSymbol as IMethodSymbol;
IPropertySymbol currentPropertySymbol = currentSymbol as IPropertySymbol;
IEventSymbol currentEventSymbol = currentSymbol as IEventSymbol;
if (currentTypeSymbol != null)
{
// Types and interfaces, inherit from all base types
List <INamedTypeSymbol> baseTypeSymbols = AnalyzeSymbolVisitor.GetBaseTypes(currentTypeSymbol)
.Where(x => inheritedSymbolCommentIds.Add(x.GetDocumentationCommentId()))
.ToList();
if (baseTypeSymbols.Count > 0)
{
inheritedSymbols.AddRange(baseTypeSymbols);
}
// Then inherit from all interfaces
List <INamedTypeSymbol> interfaceSymbols = currentTypeSymbol.AllInterfaces
.Where(x => inheritedSymbolCommentIds.Add(x.GetDocumentationCommentId()))
.ToList();
if (interfaceSymbols.Count > 0)
{
inheritedSymbols.AddRange(interfaceSymbols);
}
}
else if (currentMethodSymbol != null && currentMethodSymbol.Name == currentMethodSymbol.ContainingType.Name)
{
// Constructor, check base type constructors for the same signature
string signature = currentMethodSymbol.GetFullName();
signature = signature.Substring(signature.IndexOf('('));
foreach (INamedTypeSymbol baseTypeSymbol in AnalyzeSymbolVisitor.GetBaseTypes(currentMethodSymbol.ContainingType))
{
foreach (IMethodSymbol constructorSymbol in baseTypeSymbol.Constructors.Where(x => !x.IsImplicitlyDeclared))
{
string constructorSignature = constructorSymbol.GetFullName();
constructorSignature = constructorSignature.Substring(constructorSignature.IndexOf('('));
if (signature == constructorSignature &&
inheritedSymbolCommentIds.Add(constructorSymbol.GetDocumentationCommentId()))
{
inheritedSymbols.Add(constructorSymbol);
}
}
}
}
else if (currentMethodSymbol != null)
{
PopulateInheritedMemberSymbols(currentMethodSymbol, x => x.OverriddenMethod, inheritedSymbolCommentIds, inheritedSymbols);
}
else if (currentPropertySymbol != null)
{
PopulateInheritedMemberSymbols(currentPropertySymbol, x => x.OverriddenProperty, inheritedSymbolCommentIds, inheritedSymbols);
}
else if (currentEventSymbol != null)
{
PopulateInheritedMemberSymbols(currentEventSymbol, x => x.OverriddenEvent, inheritedSymbolCommentIds, inheritedSymbols);
}
}
else if (inheritDocElementCref != null)
{
// Explicit cref
if (inheritedSymbolCommentIds.Add(inheritDocElementCref))
{
ISymbol inheritedSymbol = DocumentationCommentId.GetFirstSymbolForDeclarationId(inheritDocElementCref, _compilation);
if (inheritedSymbol != null)
{
inheritedSymbols.Add(inheritedSymbol);
}
}
}
}
// Add the inherited comments
foreach (ISymbol inheritedSymbol in inheritedSymbols)
{
string inheritedXml = inheritedSymbol.GetDocumentationCommentXml(expandIncludes: true);
if (!string.IsNullOrEmpty(inheritedXml))
{
XElement inheritedRoot = GetRootElement(inheritedXml);
if (inheritedRoot != null)
{
// Inherit elements other than <inheritdoc>
List <XElement> inheritedInheritDocElements = new List <XElement>();
foreach (XElement inheritedElement in inheritedRoot.Elements())
{
if (inheritedElement.Name == "inheritdoc")
{
inheritedInheritDocElements.Add(inheritedElement);
}
else
{
string inheritedElementCref = inheritedElement.Attribute("cref")?.Value;
string inheritedElementName = inheritedElement.Attribute("name")?.Value;
bool inherit = true;
foreach (XElement rootElement in root.Elements(inheritedElement.Name))
{
if (inheritedElementCref == null && inheritedElementName == null)
{
// Don't inherit if the name is the same and there's no distinguishing attributes
inherit = false;
break;
}
if (inheritedElementCref != null && inheritedElementCref == rootElement.Attribute("cref")?.Value)
{
// Don't inherit if the cref attribute is the same
inherit = false;
break;
}
if (inheritedElementName != null && inheritedElementName == rootElement.Attribute("name")?.Value)
{
// Don't inherit if the name attribute is the same
inherit = false;
break;
}
}
if (inherit)
{
root.Add(inheritedElement);
}
}
}
// Recursively inherit <inheritdoc>
if (inheritedInheritDocElements.Count > 0)
{
ProcessInheritDoc(root, inheritedSymbol, inheritedInheritDocElements, inheritedSymbolCommentIds);
}
}
}
}
}
}
public SymbolDocumentValues(IEnumerable <ISymbol> symbols, AnalyzeSymbolVisitor visitor)
{
_symbols = symbols ?? Array.Empty <ISymbol>();
_visitor = visitor;
}
public SymbolDocumentValue(ISymbol symbol, AnalyzeSymbolVisitor visitor)
{
_symbol = symbol;
_visitor = visitor;
}