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//
// MonoDocDocumentationProvider.cs
//
// Author:
// Mike Krüger <mkrueger@xamarin.com>
//
// Copyright (c) 2012 Xamarin Inc. (http://xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Xml;
using ICSharpCode.NRefactory.TypeSystem;
using ICSharpCode.NRefactory.TypeSystem.Implementation;
using MonoDevelop.Core;
using ICSharpCode.NRefactory.Documentation;
using System.Text;
namespace MonoDevelop.Ide.TypeSystem
{
[Serializable]
public class MonoDocDocumentationProvider : IDocumentationProvider
{
[NonSerialized]
bool hadError;
public MonoDocDocumentationProvider ()
{
}
#region IDocumentationProvider implementation
[NonSerialized]
readonly Dictionary<string, DocumentationComment> commentCache = new Dictionary<string, DocumentationComment> ();
public DocumentationComment GetDocumentation (IEntity entity)
{
if (entity == null)
throw new System.ArgumentNullException ("entity");
// If we had an exception while getting the help xml the monodoc help provider
// shouldn't try it again. A corrupt .zip file could cause long tooltip delays otherwise.
if (hadError)
return null;
var idString = entity.GetIdString ();
DocumentationComment result;
if (commentCache.TryGetValue (idString, out result))
return result;
XmlDocument doc = null;
try {
var helpTree = MonoDevelop.Projects.HelpService.HelpTree;
if (helpTree == null)
return null;
if (entity.SymbolKind == SymbolKind.TypeDefinition) {
doc = helpTree.GetHelpXml (idString);
} else {
var parentId = entity.DeclaringTypeDefinition.GetIdString ();
doc = helpTree.GetHelpXml (parentId);
if (doc == null)
return null;
XmlNode node = SelectNode (doc, entity);
if (node != null)
return commentCache [idString] = new DocumentationComment (node.OuterXml, new SimpleTypeResolveContext (entity));
return null;
// var node = doc.SelectSingleNode ("/Type/Members/Member")
// return new DocumentationComment (doc.OuterXml, new SimpleTypeResolveContext (entity));
}
} catch (Exception e) {
hadError = true;
LoggingService.LogError ("Error while reading monodoc file.", e);
}
if (doc == null) {
commentCache [idString] = null;
return null;
}
return commentCache [idString] = new DocumentationComment (doc.OuterXml, new SimpleTypeResolveContext (entity));
}
public XmlNode SelectNode (XmlDocument doc, IEntity entity)
{
switch (entity.SymbolKind) {
case SymbolKind.None:
case SymbolKind.TypeDefinition:
case SymbolKind.Field:
case SymbolKind.Property:
case SymbolKind.Indexer:
case SymbolKind.Event:
return doc.SelectSingleNode ("/Type/Members/Member[@MemberName='" + entity.Name + "']");
case SymbolKind.Method:
case SymbolKind.Operator:
case SymbolKind.Destructor:
return SelectOverload (doc.SelectNodes ("/Type/Members/Member[@MemberName='" + entity.Name + "']"), (IParameterizedMember)entity);
case SymbolKind.Constructor:
return SelectOverload (doc.SelectNodes ("/Type/Members/Member[@MemberName='.ctor']"), (IParameterizedMember)entity);
default:
throw new ArgumentOutOfRangeException ();
}
}
public XmlNode SelectOverload (XmlNodeList nodes, IParameterizedMember entity)
{
XmlNode node = null;
if (nodes.Count == 1) {
node = nodes [0];
} else {
var p = entity.Parameters;
foreach (XmlNode curNode in nodes) {
var paramList = curNode.SelectNodes ("Parameters/*");
if (p.Count == 0 && paramList.Count == 0)
return curNode;
if (p.Count != paramList.Count)
continue;
bool matched = true;
for (int i = 0; i < p.Count; i++) {
var idString = GetTypeString (p [i].Type);
if (idString != paramList [i].Attributes ["Type"].Value) {
matched = false;
break;
}
}
if (matched) {
return curNode;
}
}
}
if (node != null) {
System.Xml.XmlNode result = node.SelectSingleNode ("Docs");
return result;
}
return null;
}
static string GetTypeString (IType t)
{
if (t.Kind == TypeKind.Unknown)
return t.Name;
if (t.Kind == TypeKind.TypeParameter)
return t.FullName;
var typeWithElementType = t as TypeWithElementType;
if (typeWithElementType != null) {
var sb = new StringBuilder ();
if (typeWithElementType is PointerType) {
sb.Append ("*");
}
sb.Append (GetTypeString (typeWithElementType.ElementType));
if (typeWithElementType is ArrayType) {
sb.Append ("[");
sb.Append (new string (',', ((ArrayType)t).Dimensions - 1));
sb.Append ("]");
}
return sb.ToString ();
}
ITypeDefinition typeDef = t.GetDefinition ();
if (typeDef == null)
return "";
var result = new StringBuilder ();
result.Append (typeDef.Namespace + ".");
if (typeDef.DeclaringTypeDefinition != null) {
string typeString = GetTypeString (typeDef.DeclaringTypeDefinition);
result.Append (typeString);
result.Append (".");
}
result.Append (typeDef.Name);
if (typeDef.TypeParameterCount > 0) {
result.Append ("<");
for (int i = 0; i < typeDef.TypeParameterCount; i++) {
if (i > 0)
result.Append (",");
if (t.TypeArguments.Count > 0) {
result.Append (GetTypeString (t.TypeArguments [i]));
} else {
result.Append (typeDef.TypeParameters [i].FullName);
}
}
result.Append (">");
}
return result.ToString ();
}
#endregion
}
}
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