- fixed crash in ExtractedMethod, when extracting code with params parameters

- always close undo group, even if extraction causes exception

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@4005 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/SharpRefactoring/Src/CSharpMethodExtractor.cs

@@ -88,6 +88,8 @@ namespace SharpRefactoring
 			{
 				FindReferenceVisitor frv = new FindReferenceVisitor(CSharpNameComparer, pde.ParameterName, newMethod.Body.StartLocation, newMethod.Body.EndLocation);
 				
+				pde.ParamModifier &= ~(ParameterModifiers.Params);
+				
 				newMethod.AcceptVisitor(frv, null);
 				
 				if (frv.Identifiers.Count > 0) {

src/AddIns/Misc/SharpRefactoring/Src/ExtractMethodCommand.cs

@@ -40,11 +40,14 @@ namespace SharpRefactoring
 						
 						if (form.ShowDialog() == DialogResult.OK) {
 							extractor.ExtractedMethod.Name = form.Text;
-							textEditor.Document.UndoStack.StartUndoGroup();
-							extractor.InsertAfterCurrentMethod();
-							extractor.InsertCall();
-							textEditor.Document.FormattingStrategy.IndentLines(textEditor.ActiveTextAreaControl.TextArea, 0, textEditor.Document.TotalNumberOfLines - 1);
-							textEditor.Document.UndoStack.EndUndoGroup();
+							try {
+								textEditor.Document.UndoStack.StartUndoGroup();
+								extractor.InsertAfterCurrentMethod();
+								extractor.InsertCall();
+								textEditor.Document.FormattingStrategy.IndentLines(textEditor.ActiveTextAreaControl.TextArea, 0, textEditor.Document.TotalNumberOfLines - 1);
+							} finally {
+								textEditor.Document.UndoStack.EndUndoGroup();
+							}
 							textEditor.ActiveTextAreaControl.SelectionManager.ClearSelection();
 						}
 					}

src/AddIns/Misc/SharpRefactoring/Src/MethodExtractorBase.cs

@@ -188,7 +188,7 @@ namespace SharpRefactoring
 			foreach (ParameterDeclarationExpression pde in parameters)
 			{
 				expressions.Add(new DirectionExpression(
-					(FieldDirection)Enum.Parse(typeof(FieldDirection),pde.ParamModifier.ToString()),
+					(FieldDirection)Enum.Parse(typeof(FieldDirection), pde.ParamModifier.ToString()),
 					new IdentifierExpression(pde.ParameterName)));
 			}