public override List <Change> PerformChanges(RefactoringOptions options, object prop) { List <Change> result = new List <Change> (); ExtractMethodParameters param = (ExtractMethodParameters)prop; TextEditorData data = options.GetTextEditorData(); INRefactoryASTProvider provider = options.GetASTProvider(); IResolver resolver = options.GetResolver(); ICSharpCode.NRefactory.Ast.INode node = Analyze(options, param, false); if (param.VariablesToGenerate.Count > 0) { TextReplaceChange varGen = new TextReplaceChange(); varGen.Description = GettextCatalog.GetString("Generate some temporary variables"); varGen.FileName = options.Document.FileName; LineSegment line = data.Document.GetLine(Math.Max(0, data.Document.OffsetToLineNumber(data.SelectionRange.Offset) - 1)); varGen.Offset = line.Offset + line.EditableLength; varGen.InsertedText = Environment.NewLine + options.GetWhitespaces(line.Offset); foreach (VariableDescriptor var in param.VariablesToGenerate) { TypeReference tr = options.ShortenTypeName(var.ReturnType).ConvertToTypeReference(); varGen.InsertedText += provider.OutputNode(options.Dom, new LocalVariableDeclaration(new VariableDeclaration(var.Name, null, tr))).Trim(); } result.Add(varGen); } InvocationExpression invocation = new InvocationExpression(new IdentifierExpression(param.Name)); foreach (VariableDescriptor var in param.Parameters) { if (!param.OneChangedVariable && param.ChangedVariables.Contains(var.Name)) { FieldDirection fieldDirection = FieldDirection.Ref; VariableDescriptor outsideVar = null; if (param.VariablesOutside.TryGetValue(var.Name, out outsideVar) && (var.GetsAssigned || param.VariablesToGenerate.Where(v => v.Name == var.Name).Any())) { if (!outsideVar.GetsAssigned) { fieldDirection = FieldDirection.Out; } } invocation.Arguments.Add(new DirectionExpression(fieldDirection, new IdentifierExpression(var.Name))); } else { invocation.Arguments.Add(new IdentifierExpression(var.Name)); } } // string mimeType = DesktopService.GetMimeTypeForUri (options.Document.FileName); TypeReference returnType = new TypeReference("System.Void", true); ICSharpCode.NRefactory.Ast.INode outputNode; if (param.OneChangedVariable) { string name = param.ChangedVariables.First(); returnType = options.ShortenTypeName(param.Variables.Find(v => v.Name == name).ReturnType).ConvertToTypeReference(); if (param.OutsideVariableList.Any(v => v.Name == name && !v.IsDefined)) { LocalVariableDeclaration varDecl = new LocalVariableDeclaration(returnType); varDecl.Variables.Add(new VariableDeclaration(name, invocation)); outputNode = varDecl; } else { outputNode = new ExpressionStatement(new AssignmentExpression(new IdentifierExpression(name), ICSharpCode.NRefactory.Ast.AssignmentOperatorType.Assign, invocation)); } } else { outputNode = node is BlockStatement ? (ICSharpCode.NRefactory.Ast.INode) new ExpressionStatement(invocation) : invocation; } TextReplaceChange replacement = new TextReplaceChange(); replacement.Description = string.Format(GettextCatalog.GetString("Substitute selected statement(s) with call to {0}"), param.Name); replacement.FileName = options.Document.FileName; replacement.Offset = options.Document.TextEditor.SelectionStartPosition; replacement.RemovedChars = options.Document.TextEditor.SelectionEndPosition - options.Document.TextEditor.SelectionStartPosition; replacement.MoveCaretToReplace = true; LineSegment line1 = data.Document.GetLineByOffset(options.Document.TextEditor.SelectionEndPosition); if (options.Document.TextEditor.SelectionEndPosition == line1.Offset) { if (line1.Offset > 0) { LineSegment line2 = data.Document.GetLineByOffset(line1.Offset - 1); replacement.RemovedChars -= line2.DelimiterLength; } } replacement.InsertedText = options.GetWhitespaces(options.Document.TextEditor.SelectionStartPosition) + provider.OutputNode(options.Dom, outputNode).Trim(); result.Add(replacement); TextReplaceChange insertNewMethod = new TextReplaceChange(); insertNewMethod.FileName = options.Document.FileName; insertNewMethod.Description = string.Format(GettextCatalog.GetString("Create new method {0} from selected statement(s)"), param.Name); insertNewMethod.RemovedChars = param.InsertionPoint.LineBefore == NewLineInsertion.Eol ? 0 : param.InsertionPoint.Location.Column; insertNewMethod.Offset = data.Document.LocationToOffset(param.InsertionPoint.Location) - insertNewMethod.RemovedChars; ExtractMethodAstTransformer transformer = new ExtractMethodAstTransformer(param.VariablesToGenerate); node.AcceptVisitor(transformer, null); if (!param.OneChangedVariable && node is Expression) { ResolveResult resolveResult = resolver.Resolve(new ExpressionResult("(" + provider.OutputNode(options.Dom, node) + ")"), new DomLocation(options.Document.TextEditor.CursorLine, options.Document.TextEditor.CursorColumn)); if (resolveResult.ResolvedType != null) { returnType = options.ShortenTypeName(resolveResult.ResolvedType).ConvertToTypeReference(); } } MethodDeclaration methodDecl = new MethodDeclaration(); methodDecl.Name = param.Name; methodDecl.Modifier = param.Modifiers; methodDecl.TypeReference = returnType; if (!param.ReferencesMember) { methodDecl.Modifier |= ICSharpCode.NRefactory.Ast.Modifiers.Static; } if (node is BlockStatement) { methodDecl.Body = new BlockStatement(); methodDecl.Body.AddChild(new EmptyStatement()); if (param.OneChangedVariable) { methodDecl.Body.AddChild(new ReturnStatement(new IdentifierExpression(param.ChangedVariables.First()))); } } else if (node is Expression) { methodDecl.Body = new BlockStatement(); methodDecl.Body.AddChild(new ReturnStatement(node as Expression)); } foreach (VariableDescriptor var in param.VariablesToDefine) { BlockStatement block = methodDecl.Body; LocalVariableDeclaration varDecl = new LocalVariableDeclaration(options.ShortenTypeName(var.ReturnType).ConvertToTypeReference()); varDecl.Variables.Add(new VariableDeclaration(var.Name)); block.Children.Insert(0, varDecl); } foreach (VariableDescriptor var in param.Parameters) { TypeReference typeReference = options.ShortenTypeName(var.ReturnType).ConvertToTypeReference(); ParameterDeclarationExpression pde = new ParameterDeclarationExpression(typeReference, var.Name); if (!param.OneChangedVariable) { if (param.ChangedVariables.Contains(var.Name)) { pde.ParamModifier = ICSharpCode.NRefactory.Ast.ParameterModifiers.Ref; } if (param.VariablesToGenerate.Where(v => v.Name == var.Name).Any()) { pde.ParamModifier = ICSharpCode.NRefactory.Ast.ParameterModifiers.Out; } VariableDescriptor outsideVar = null; if (var.GetsAssigned && param.VariablesOutside.TryGetValue(var.Name, out outsideVar)) { if (!outsideVar.GetsAssigned) { pde.ParamModifier = ICSharpCode.NRefactory.Ast.ParameterModifiers.Out; } } } methodDecl.Parameters.Add(pde); } string indent = options.GetIndent(param.DeclaringMember); StringBuilder methodText = new StringBuilder(); switch (param.InsertionPoint.LineBefore) { case NewLineInsertion.Eol: methodText.AppendLine(); break; case NewLineInsertion.BlankLine: methodText.Append(indent); methodText.AppendLine(); break; } if (param.GenerateComment) { methodText.Append(indent); methodText.AppendLine("/// <summary>"); methodText.Append(indent); methodText.AppendLine("/// TODO: write a comment."); methodText.Append(indent); methodText.AppendLine("/// </summary>"); Ambience ambience = AmbienceService.GetAmbienceForFile(options.Document.FileName); foreach (ParameterDeclarationExpression pde in methodDecl.Parameters) { methodText.Append(indent); methodText.Append("/// <param name=\""); methodText.Append(pde.ParameterName); methodText.Append("\"> A "); methodText.Append(ambience.GetString(pde.TypeReference.ConvertToReturnType(), OutputFlags.IncludeGenerics | OutputFlags.UseFullName)); methodText.Append(" </param>"); methodText.AppendLine(); } if (methodDecl.TypeReference.Type != "System.Void") { methodText.Append(indent); methodText.AppendLine("/// <returns>"); methodText.Append(indent); methodText.Append("/// A "); methodText.AppendLine(ambience.GetString(methodDecl.TypeReference.ConvertToReturnType(), OutputFlags.IncludeGenerics | OutputFlags.UseFullName)); methodText.Append(indent); methodText.AppendLine("/// </returns>"); } } methodText.Append(indent); if (node is BlockStatement) { string text = provider.OutputNode(options.Dom, methodDecl, indent).Trim(); int emptyStatementMarker = text.LastIndexOf(';'); if (param.OneChangedVariable) { emptyStatementMarker = text.LastIndexOf(';', emptyStatementMarker - 1); } StringBuilder sb = new StringBuilder(); sb.Append(text.Substring(0, emptyStatementMarker)); sb.Append(AddIndent(param.Text, indent + "\t")); sb.Append(text.Substring(emptyStatementMarker + 1)); methodText.Append(sb.ToString()); } else { methodText.Append(provider.OutputNode(options.Dom, methodDecl, options.GetIndent(param.DeclaringMember)).Trim()); } switch (param.InsertionPoint.LineAfter) { case NewLineInsertion.Eol: methodText.AppendLine(); break; case NewLineInsertion.BlankLine: methodText.AppendLine(); methodText.AppendLine(); methodText.Append(indent); break; } insertNewMethod.InsertedText = methodText.ToString(); result.Add(insertNewMethod); return(result); }
public ExtractMethodDialog(RefactoringOptions options, ExtractMethodRefactoring extractMethod, ExtractMethodRefactoring.ExtractMethodParameters properties) { this.Build(); this.options = options; this.properties = properties; this.extractMethod = extractMethod; store = new ListStore(typeof(string), typeof(string)); treeviewParameters.Model = store; treeviewParameters.AppendColumn("Type", new CellRendererText(), "text", 0); treeviewParameters.AppendColumn("Name", new CellRendererText(), "text", 1); FillStore(); buttonPreview.Sensitive = buttonOk.Sensitive = false; entry.Changed += delegate { buttonPreview.Sensitive = buttonOk.Sensitive = ValidateName(); }; ValidateName(); buttonOk.Clicked += OnOKClicked; buttonCancel.Clicked += OnCancelClicked; buttonPreview.Clicked += OnPreviewClicked; buttonUp.Clicked += delegate { List <int> indices = new List <int> (); foreach (TreePath path in treeviewParameters.Selection.GetSelectedRows()) { int index = Int32.Parse(path.ToString()); if (index > 0) { VariableDescriptor tmp = properties.Parameters [index - 1]; properties.Parameters [index - 1] = properties.Parameters [index]; properties.Parameters [index] = tmp; indices.Add(index - 1); } } FillStore(); treeviewParameters.Selection.SelectPath(new TreePath(indices.ToArray())); }; buttonDown.Clicked += delegate { List <int> indices = new List <int> (); foreach (TreePath path in treeviewParameters.Selection.GetSelectedRows()) { int index = Int32.Parse(path.ToString()); if (index + 1 < properties.Parameters.Count) { VariableDescriptor tmp = properties.Parameters [index + 1]; properties.Parameters [index + 1] = properties.Parameters [index]; properties.Parameters [index] = tmp; indices.Add(index + 1); } } FillStore(); treeviewParameters.Selection.SelectPath(new TreePath(indices.ToArray())); }; ListStore modifiers = new ListStore(typeof(string)); modifiers.AppendValues(""); modifiers.AppendValues("public"); modifiers.AppendValues("private"); modifiers.AppendValues("protected"); modifiers.AppendValues("internal"); comboboxModifiers.Model = modifiers; comboboxModifiers.Active = PropertyService.Get <int> ("MonoDevelop.Refactoring.ExtractMethod.ExtractMethodDialog.DefaultModifier"); entry.Activated += delegate { if (buttonOk.Sensitive) { buttonOk.Click(); } }; }