ICSharpCode.NRefactory.CSharp.Completion.CSharpCompletionEngine.AddDelegateHandlers C# (CSharp) Method

		string AddDelegateHandlers(CompletionDataWrapper completionList, IType delegateType, bool addSemicolon = true, bool addDefault = true)
		{
			IMethod delegateMethod = delegateType.GetDelegateInvokeMethod();
			var thisLineIndent = GetLineIndent(location.Line);
			string delegateEndString = EolMarker + thisLineIndent + "}" + (addSemicolon ? ";" : "");
			//bool containsDelegateData = completionList.Result.Any(d => d.DisplayText.StartsWith("delegate("));
			if (addDefault) {
				var oldDelegate = completionList.Result.FirstOrDefault(cd => cd.DisplayText == "delegate");
				if (oldDelegate != null)
					completionList.Result.Remove(oldDelegate);
				completionList.AddCustom(
					"delegate",
					"Creates anonymous delegate.",
					"delegate {" + EolMarker + thisLineIndent + IndentString + "|" + delegateEndString
					);
			}
			var sb = new StringBuilder("(");
			var sbWithoutTypes = new StringBuilder("(");
			var state = GetState();
			var builder = new TypeSystemAstBuilder(state);
			
			for (int k = 0; k < delegateMethod.Parameters.Count; k++) {
				if (k > 0) {
					sb.Append(", ");
					sbWithoutTypes.Append(", ");
				}
				var convertedParameter = builder.ConvertParameter (delegateMethod.Parameters [k]);
				if (convertedParameter.ParameterModifier == ParameterModifier.Params)
					convertedParameter.ParameterModifier = ParameterModifier.None;
				sb.Append(convertedParameter.GetText (FormattingPolicy));
				sbWithoutTypes.Append(delegateMethod.Parameters [k].Name);
			}
			
			sb.Append(")");
			sbWithoutTypes.Append(")");
			completionList.AddCustom(
				"delegate" + sb,
				"Creates anonymous delegate.",
				"delegate" + sb + " {" + EolMarker + thisLineIndent + IndentString + "|" + delegateEndString
				);

			if (!completionList.Result.Any(data => data.DisplayText == sb.ToString())) {
				completionList.AddCustom(
					sb.ToString(),
					"Creates typed lambda expression.",
					sb + " => |" + (addSemicolon ? ";" : "")
					);
			}

			if (!delegateMethod.Parameters.Any (p => p.IsOut || p.IsRef) && !completionList.Result.Any(data => data.DisplayText == sbWithoutTypes.ToString())) {
				completionList.AddCustom(
					sbWithoutTypes.ToString(),
					"Creates lambda expression.",
					sbWithoutTypes + " => |" + (addSemicolon ? ";" : "")
					);
			}
			/* TODO:Make factory method out of it.
			// It's  needed to temporarly disable inserting auto matching bracket because the anonymous delegates are selectable with '('
			// otherwise we would end up with () => )
			if (!containsDelegateData) {
				var savedValue = MonoDevelop.SourceEditor.DefaultSourceEditorOptions.Instance.AutoInsertMatchingBracket;
				MonoDevelop.SourceEditor.DefaultSourceEditorOptions.Instance.AutoInsertMatchingBracket = false;
				completionList.Result.CompletionListClosed += delegate {
					MonoDevelop.SourceEditor.DefaultSourceEditorOptions.Instance.AutoInsertMatchingBracket = savedValue;
				};
			}*/
			return sb.ToString();
		}