bool DoCaseCompletion(SharpDevelopTextAreaControl editor)
{
ICSharpCode.TextEditor.Caret caret = editor.ActiveTextAreaControl.Caret;
NRefactoryResolver r = new NRefactoryResolver(LanguageProperties.CSharp);
if (r.Initialize(ParserService.GetParseInformation(editor.FileName), caret.Line + 1, caret.Column + 1))
{
AST.INode currentMember = r.ParseCurrentMember(editor.Text);
if (currentMember != null)
{
CaseCompletionSwitchFinder ccsf = new CaseCompletionSwitchFinder(caret.Line + 1, caret.Column + 1);
currentMember.AcceptVisitor(ccsf, null);
if (ccsf.bestStatement != null)
{
r.RunLookupTableVisitor(currentMember);
ResolveResult rr = r.ResolveInternal(ccsf.bestStatement.SwitchExpression, ExpressionContext.Default);
if (rr != null && rr.ResolvedType != null)
{
return(ProvideContextCompletion(editor, rr.ResolvedType, ' '));
}
}
}
}
return(false);
}
public override List <Change> PerformChanges(RefactoringOptions options, object properties)
{
ICSharpCode.NRefactory.Ast.INode memberNode = GetMemberBodyNode(options);
List <Change> changes = new List <Change> ();
if (memberNode == null)
{
return(null);
}
try {
// Console.WriteLine ("AcceptVisitor");
// Console.WriteLine ("Start: " + memberNode.StartLocation.ToString () + " - End: " + memberNode.EndLocation.ToString ());
memberNode.AcceptVisitor(new IntegrateTemporaryVariableVisitor(), new IntegrateTemporaryVariableVisitorOptions(changes, options));
// Console.WriteLine ("AcceptVisitor done");
} catch (IntegrateTemporaryVariableException e) {
// Console.WriteLine ("Exception catched");
MessageService.ShowError("Could not perform integration : ", e.Message);
return(new List <Change>());
}
// Console.WriteLine ("Changes calculated");
return(changes);
}
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);
}
ICSharpCode.NRefactory.Ast.INode Analyze(RefactoringOptions options, ExtractMethodParameters param, bool fillParameter)
{
IResolver resolver = options.GetResolver();
INRefactoryASTProvider provider = options.GetASTProvider();
if (resolver == null || provider == null)
{
return(null);
}
string text = options.Document.TextEditor.GetText(options.Document.TextEditor.SelectionStartPosition, options.Document.TextEditor.SelectionEndPosition);
TextEditorData data = options.GetTextEditorData();
var cu = provider.ParseFile(data.Document.GetTextAt(0, data.SelectionRange.Offset) + "MethodCall ();" + data.Document.GetTextAt(data.SelectionRange.EndOffset, data.Document.Length - data.SelectionRange.EndOffset));
if (cu == null || provider.LastErrors.Count > 0)
{
cu = provider.ParseFile(data.Document.GetTextAt(0, data.SelectionRange.Offset) + "MethodCall ()" + data.Document.GetTextAt(data.SelectionRange.EndOffset, data.Document.Length - data.SelectionRange.EndOffset));
}
if (cu == null || provider.LastErrors.Count > 0)
{
return(null);
}
param.Text = RemoveIndent(text, GetIndent(text)).TrimEnd('\n', '\r');
ICSharpCode.NRefactory.Ast.INode result = provider.ParseText(text);
if (cu == null || provider.LastErrors.Count > 0)
{
return(null);
}
VariableLookupVisitor visitor = new VariableLookupVisitor(resolver, param.Location);
visitor.MemberLocation = new Location(param.DeclaringMember.Location.Column, param.DeclaringMember.Location.Line);
if (fillParameter)
{
if (result != null)
{
result.AcceptVisitor(visitor, null);
}
if (result is Expression)
{
ResolveResult resolveResult = resolver.Resolve(new ExpressionResult(text), param.Location);
if (resolveResult != null)
{
param.ExpressionType = resolveResult.ResolvedType;
}
}
var startLocation = data.Document.OffsetToLocation(data.SelectionRange.Offset);
var endLocation = data.Document.OffsetToLocation(data.SelectionRange.EndOffset);
// Console.WriteLine ("startLocation={0}, endLocation={1}", startLocation, endLocation);
foreach (VariableDescriptor varDescr in visitor.VariableList.Where(v => !v.IsDefined && v.InitialValueUsed))
{
if (startLocation <= varDescr.Location && varDescr.Location < endLocation)
{
continue;
}
// Console.WriteLine (varDescr.Location);
// Console.WriteLine (startLocation <= varDescr.Location);
// Console.WriteLine (varDescr.Location < endLocation);
param.Parameters.Add(varDescr);
}
param.Variables = new List <VariableDescriptor> (visitor.Variables.Values);
foreach (VariableDescriptor varDescr in visitor.VariableList.Where(v => !v.IsDefined && param.Variables.Contains(v)))
{
if (param.Parameters.Contains(varDescr))
{
continue;
}
if (startLocation <= varDescr.Location && varDescr.Location < endLocation)
{
continue;
}
param.Parameters.Add(varDescr);
}
param.ReferencesMember = visitor.ReferencesMember;
param.ChangedVariables = new HashSet <string> (visitor.Variables.Values.Where(v => v.GetsChanged).Select(v => v.Name));
// analyze the variables outside of the selected text
IMember member = param.DeclaringMember;
int startOffset = data.Document.LocationToOffset(member.BodyRegion.Start.Line, member.BodyRegion.Start.Column);
int endOffset = data.Document.LocationToOffset(member.BodyRegion.End.Line, member.BodyRegion.End.Column);
if (data.SelectionRange.Offset < startOffset || endOffset < data.SelectionRange.EndOffset)
{
return(null);
}
text = data.Document.GetTextBetween(startOffset, data.SelectionRange.Offset) + data.Document.GetTextBetween(data.SelectionRange.EndOffset, endOffset);
ICSharpCode.NRefactory.Ast.INode parsedNode = provider.ParseText(text);
visitor = new VariableLookupVisitor(resolver, param.Location);
visitor.CutRegion = new DomRegion(data.MainSelection.MinLine, data.MainSelection.MaxLine);
visitor.MemberLocation = new Location(param.DeclaringMember.Location.Column, param.DeclaringMember.Location.Line);
if (parsedNode != null)
{
parsedNode.AcceptVisitor(visitor, null);
}
param.VariablesOutside = new Dictionary <string, VariableDescriptor> ();
foreach (var pair in visitor.Variables)
{
if (startLocation < pair.Value.Location || endLocation >= pair.Value.Location)
{
param.VariablesOutside.Add(pair.Key, pair.Value);
}
}
param.OutsideVariableList = new List <VariableDescriptor> ();
foreach (var v in visitor.VariableList)
{
if (startLocation < v.Location || endLocation >= v.Location)
{
param.OutsideVariableList.Add(v);
}
}
param.ChangedVariablesUsedOutside = new List <VariableDescriptor> (param.Variables.Where(v => v.GetsChanged && param.VariablesOutside.ContainsKey(v.Name)));
param.OneChangedVariable = result is BlockStatement;
if (param.OneChangedVariable)
{
param.OneChangedVariable = param.ChangedVariablesUsedOutside.Count == 1;
}
param.VariablesToGenerate = new List <VariableDescriptor> (param.ChangedVariablesUsedOutside.Where(v => v.IsDefined));
foreach (VariableDescriptor var in param.VariablesToGenerate)
{
param.Parameters.Add(var);
}
if (param.OneChangedVariable)
{
param.VariablesToDefine = new List <VariableDescriptor> (param.Parameters.Where(var => !var.InitialValueUsed));
param.VariablesToDefine.ForEach(var => param.Parameters.Remove(var));
}
else
{
param.VariablesToDefine = new List <VariableDescriptor> ();
}
}
return(result);
}
