static string CreateVariableName(MonoDevelop.Projects.Dom.IReturnType returnType, MonoDevelop.Refactoring.ExtractMethod.VariableLookupVisitor visitor)
{
string[] possibleNames = GetPossibleName(returnType);
foreach (string name in possibleNames)
{
if (!VariableExists(visitor, name))
{
return(name);
}
}
foreach (string name in possibleNames)
{
for (int i = 1; i < 99; i++)
{
if (!VariableExists(visitor, name + i.ToString()))
{
return(name + i.ToString());
}
}
}
return("a" + returnType.Name);
}
public override List<Change> PerformChanges (RefactoringOptions options, object prop)
{
varCount = 0;
selectionStart = selectionEnd = -1;
List<Change> result = new List<Change> ();
IResolver resolver = options.GetResolver ();
INRefactoryASTProvider provider = options.GetASTProvider ();
if (resolver == null || provider == null)
return result;
TextEditorData data = options.GetTextEditorData ();
if (data == null)
return result;
ResolveResult resolveResult;
LineSegment lineSegment;
ICSharpCode.NRefactory.Ast.CompilationUnit unit = provider.ParseFile (data.Document.Text);
MonoDevelop.Refactoring.ExtractMethod.VariableLookupVisitor visitor = new MonoDevelop.Refactoring.ExtractMethod.VariableLookupVisitor (resolver, new DomLocation (data.Caret.Line, data.Caret.Column));
if (options.ResolveResult == null) {
LoggingService.LogError ("resolve result == null:" + options.ResolveResult);
return result;
}
IMember callingMember = options.ResolveResult.CallingMember;
if (callingMember != null)
visitor.MemberLocation = new Location (callingMember.Location.Column, callingMember.Location.Line);
unit.AcceptVisitor (visitor, null);
if (data.IsSomethingSelected) {
ExpressionResult expressionResult = new ExpressionResult (data.SelectedText.Trim ());
if (expressionResult.Expression.Contains (" ") || expressionResult.Expression.Contains ("\t"))
expressionResult.Expression = "(" + expressionResult.Expression + ")";
resolveResult = resolver.Resolve (expressionResult, new DomLocation (data.Caret.Line, data.Caret.Column));
if (resolveResult == null)
return result;
IReturnType resolvedType = resolveResult.ResolvedType;
if (resolvedType == null || string.IsNullOrEmpty (resolvedType.Name))
resolvedType = DomReturnType.Object;
varName = CreateVariableName (resolvedType, visitor);
TypeReference returnType;
if (resolveResult.ResolvedType == null || string.IsNullOrEmpty (resolveResult.ResolvedType.Name)) {
returnType = new TypeReference ("var");
returnType.IsKeyword = true;
} else {
returnType = options.ShortenTypeName (resolveResult.ResolvedType).ConvertToTypeReference ();
}
options.ParseMember (resolveResult.CallingMember);
TextReplaceChange insert = new TextReplaceChange ();
insert.FileName = options.Document.FileName;
insert.Description = GettextCatalog.GetString ("Insert variable declaration");
LocalVariableDeclaration varDecl = new LocalVariableDeclaration (returnType);
varDecl.Variables.Add (new VariableDeclaration (varName, provider.ParseExpression (data.SelectedText)));
GetContainingEmbeddedStatementVisitor blockVisitor = new GetContainingEmbeddedStatementVisitor ();
blockVisitor.LookupLocation = new Location (data.Caret.Column, data.Caret.Line );
unit.AcceptVisitor (blockVisitor, null);
StatementWithEmbeddedStatement containing = blockVisitor.ContainingStatement as StatementWithEmbeddedStatement;
if (containing != null && !(containing.EmbeddedStatement is BlockStatement)) {
insert.Offset = data.Document.LocationToOffset (containing.StartLocation.Line, containing.StartLocation.Column);
lineSegment = data.Document.GetLineByOffset (insert.Offset);
insert.RemovedChars = data.Document.LocationToOffset (containing.EndLocation.Line, containing.EndLocation.Column) - insert.Offset;
BlockStatement insertedBlock = new BlockStatement ();
insertedBlock.AddChild (varDecl);
insertedBlock.AddChild (containing.EmbeddedStatement);
containing.EmbeddedStatement = insertedBlock;
insert.InsertedText = provider.OutputNode (options.Dom, containing, options.GetWhitespaces (lineSegment.Offset)).TrimStart ();
int offset, length;
if (SearchSubExpression (insert.InsertedText, data.SelectedText, 0, out offset, out length))
if (SearchSubExpression (insert.InsertedText, data.SelectedText, offset + 1, out offset, out length)) {
insert.InsertedText = insert.InsertedText.Substring (0, offset) + varName + insert.InsertedText.Substring (offset + length);
insertOffset = insert.Offset + offset;
}
} else if (blockVisitor.ContainingStatement is IfElseStatement) {
IfElseStatement ifElse = blockVisitor.ContainingStatement as IfElseStatement;
insert.Offset = data.Document.LocationToOffset (blockVisitor.ContainingStatement.StartLocation.Line, blockVisitor.ContainingStatement.StartLocation.Column);
lineSegment = data.Document.GetLineByOffset (insert.Offset);
insert.RemovedChars = data.Document.LocationToOffset (blockVisitor.ContainingStatement.EndLocation.Line, blockVisitor.ContainingStatement.EndLocation.Column) - insert.Offset;
BlockStatement insertedBlock = new BlockStatement ();
insertedBlock.AddChild (varDecl);
if (blockVisitor.ContainsLocation (ifElse.TrueStatement[0])) {
insertedBlock.AddChild (ifElse.TrueStatement[0]);
ifElse.TrueStatement[0] = insertedBlock;
} else {
insertedBlock.AddChild (ifElse.FalseStatement[0]);
ifElse.FalseStatement[0] = insertedBlock;
}
insert.InsertedText = provider.OutputNode (options.Dom, blockVisitor.ContainingStatement, options.GetWhitespaces (lineSegment.Offset));
int offset, length;
if (SearchSubExpression (insert.InsertedText, provider.OutputNode (options.Dom, insertedBlock), 0, out offset, out length))
if (SearchSubExpression (insert.InsertedText, data.SelectedText, offset + 1, out offset, out length))
if (SearchSubExpression (insert.InsertedText, data.SelectedText, offset + 1, out offset, out length)) {
insert.InsertedText = insert.InsertedText.Substring (0, offset) + varName + insert.InsertedText.Substring (offset + length);
insertOffset = insert.Offset + offset;
}
} else {
lineSegment = data.Document.GetLine (data.Caret.Line);
insert.Offset = lineSegment.Offset;
insert.InsertedText = options.GetWhitespaces (lineSegment.Offset) + provider.OutputNode (options.Dom, varDecl) + Environment.NewLine;
insertOffset = insert.Offset + options.GetWhitespaces (lineSegment.Offset).Length + provider.OutputNode (options.Dom, varDecl.TypeReference).Length + " ".Length;
TextReplaceChange replace = new TextReplaceChange ();
replace.FileName = options.Document.FileName;
replace.Offset = data.SelectionRange.Offset;
replace.RemovedChars = data.SelectionRange.Length;
replace.InsertedText = varName;
result.Add (replace);
replaceOffset = replace.Offset;
if (insert.Offset < replaceOffset)
replaceOffset += insert.InsertedText.Length - insert.RemovedChars;
varCount++;
}
result.Add (insert);
varCount++;
selectionStart = insert.Offset;
return result;
}
lineSegment = data.Document.GetLine (data.Caret.Line);
string line = data.Document.GetTextAt (lineSegment);
Expression expression = provider.ParseExpression (line);
if (expression == null)
return result;
resolveResult = resolver.Resolve (new ExpressionResult (line), new DomLocation (options.Document.Editor.Caret.Line, options.Document.Editor.Caret.Column));
if (resolveResult.ResolvedType != null && !string.IsNullOrEmpty (resolveResult.ResolvedType.FullName)) {
TextReplaceChange insert = new TextReplaceChange ();
insert.FileName = options.Document.FileName;
insert.Description = GettextCatalog.GetString ("Insert variable declaration");
insert.Offset = lineSegment.Offset + options.GetWhitespaces (lineSegment.Offset).Length;
varName = CreateVariableName (resolveResult.ResolvedType, visitor);
LocalVariableDeclaration varDecl = new LocalVariableDeclaration (options.ShortenTypeName (resolveResult.ResolvedType).ConvertToTypeReference ());
varDecl.Variables.Add (new VariableDeclaration (varName, expression));
insert.RemovedChars = expression.EndLocation.Column - 1;
insert.InsertedText = provider.OutputNode (options.Dom, varDecl);
insertOffset = insert.Offset + provider.OutputNode (options.Dom, varDecl.TypeReference).Length + " ".Length;
result.Add (insert);
varCount++;
int idx = 0;
while (idx < insert.InsertedText.Length - varName.Length) {
if (insert.InsertedText.Substring (idx, varName.Length) == varName && (idx == 0 || insert.InsertedText[idx - 1] == ' ') && (idx == insert.InsertedText.Length - varName.Length - 1 || insert.InsertedText[idx + varName.Length] == ' ')) {
selectionStart = insert.Offset + idx;
selectionEnd = selectionStart + varName.Length;
break;
}
idx++;
}
}
return result;
}
public override List <Change> PerformChanges(RefactoringOptions options, object prop)
{
varCount = 0;
selectionStart = selectionEnd = -1;
List <Change> result = new List <Change> ();
IResolver resolver = options.GetResolver();
INRefactoryASTProvider provider = options.GetASTProvider();
if (resolver == null || provider == null)
{
return(result);
}
TextEditorData data = options.GetTextEditorData();
if (data == null)
{
return(result);
}
ResolveResult resolveResult;
LineSegment lineSegment;
ICSharpCode.NRefactory.Ast.CompilationUnit unit = provider.ParseFile(data.Document.Text);
MonoDevelop.Refactoring.ExtractMethod.VariableLookupVisitor visitor = new MonoDevelop.Refactoring.ExtractMethod.VariableLookupVisitor(resolver, new DomLocation(data.Caret.Line, data.Caret.Column));
if (options.ResolveResult == null)
{
LoggingService.LogError("resolve result == null:" + options.ResolveResult);
return(result);
}
IMember callingMember = options.ResolveResult.CallingMember;
if (callingMember != null)
{
visitor.MemberLocation = new Location(callingMember.Location.Column, callingMember.Location.Line);
}
unit.AcceptVisitor(visitor, null);
if (data.IsSomethingSelected)
{
ExpressionResult expressionResult = new ExpressionResult(data.SelectedText.Trim());
if (expressionResult.Expression.Contains(" ") || expressionResult.Expression.Contains("\t"))
{
expressionResult.Expression = "(" + expressionResult.Expression + ")";
}
resolveResult = resolver.Resolve(expressionResult, new DomLocation(data.Caret.Line, data.Caret.Column));
if (resolveResult == null)
{
return(result);
}
IReturnType resolvedType = resolveResult.ResolvedType;
if (resolvedType == null || string.IsNullOrEmpty(resolvedType.Name))
{
resolvedType = DomReturnType.Object;
}
varName = CreateVariableName(resolvedType, visitor);
TypeReference returnType;
if (resolveResult.ResolvedType == null || string.IsNullOrEmpty(resolveResult.ResolvedType.Name))
{
returnType = new TypeReference("var");
returnType.IsKeyword = true;
}
else
{
returnType = options.ShortenTypeName(resolveResult.ResolvedType).ConvertToTypeReference();
}
options.ParseMember(resolveResult.CallingMember);
TextReplaceChange insert = new TextReplaceChange();
insert.FileName = options.Document.FileName;
insert.Description = GettextCatalog.GetString("Insert variable declaration");
LocalVariableDeclaration varDecl = new LocalVariableDeclaration(returnType);
varDecl.Variables.Add(new VariableDeclaration(varName, provider.ParseExpression(data.SelectedText)));
GetContainingEmbeddedStatementVisitor blockVisitor = new GetContainingEmbeddedStatementVisitor();
blockVisitor.LookupLocation = new Location(data.Caret.Column + 1, data.Caret.Line + 1);
unit.AcceptVisitor(blockVisitor, null);
StatementWithEmbeddedStatement containing = blockVisitor.ContainingStatement as StatementWithEmbeddedStatement;
if (containing != null && !(containing.EmbeddedStatement is BlockStatement))
{
insert.Offset = data.Document.LocationToOffset(containing.StartLocation.Line - 1, containing.StartLocation.Column - 1);
lineSegment = data.Document.GetLineByOffset(insert.Offset);
insert.RemovedChars = data.Document.LocationToOffset(containing.EndLocation.Line - 1, containing.EndLocation.Column - 1) - insert.Offset;
BlockStatement insertedBlock = new BlockStatement();
insertedBlock.AddChild(varDecl);
insertedBlock.AddChild(containing.EmbeddedStatement);
containing.EmbeddedStatement = insertedBlock;
insert.InsertedText = provider.OutputNode(options.Dom, containing, options.GetWhitespaces(lineSegment.Offset)).TrimStart();
int offset, length;
if (SearchSubExpression(insert.InsertedText, data.SelectedText, 0, out offset, out length))
{
if (SearchSubExpression(insert.InsertedText, data.SelectedText, offset + 1, out offset, out length))
{
insert.InsertedText = insert.InsertedText.Substring(0, offset) + varName + insert.InsertedText.Substring(offset + length);
insertOffset = insert.Offset + offset;
}
}
}
else if (blockVisitor.ContainingStatement is IfElseStatement)
{
IfElseStatement ifElse = blockVisitor.ContainingStatement as IfElseStatement;
insert.Offset = data.Document.LocationToOffset(blockVisitor.ContainingStatement.StartLocation.Line - 1, blockVisitor.ContainingStatement.StartLocation.Column - 1);
lineSegment = data.Document.GetLineByOffset(insert.Offset);
insert.RemovedChars = data.Document.LocationToOffset(blockVisitor.ContainingStatement.EndLocation.Line - 1, blockVisitor.ContainingStatement.EndLocation.Column - 1) - insert.Offset;
BlockStatement insertedBlock = new BlockStatement();
insertedBlock.AddChild(varDecl);
if (blockVisitor.ContainsLocation(ifElse.TrueStatement[0]))
{
insertedBlock.AddChild(ifElse.TrueStatement[0]);
ifElse.TrueStatement[0] = insertedBlock;
}
else
{
insertedBlock.AddChild(ifElse.FalseStatement[0]);
ifElse.FalseStatement[0] = insertedBlock;
}
insert.InsertedText = provider.OutputNode(options.Dom, blockVisitor.ContainingStatement, options.GetWhitespaces(lineSegment.Offset));
int offset, length;
if (SearchSubExpression(insert.InsertedText, provider.OutputNode(options.Dom, insertedBlock), 0, out offset, out length))
{
if (SearchSubExpression(insert.InsertedText, data.SelectedText, offset + 1, out offset, out length))
{
if (SearchSubExpression(insert.InsertedText, data.SelectedText, offset + 1, out offset, out length))
{
insert.InsertedText = insert.InsertedText.Substring(0, offset) + varName + insert.InsertedText.Substring(offset + length);
insertOffset = insert.Offset + offset;
}
}
}
}
else
{
lineSegment = data.Document.GetLine(data.Caret.Line);
insert.Offset = lineSegment.Offset;
insert.InsertedText = options.GetWhitespaces(lineSegment.Offset) + provider.OutputNode(options.Dom, varDecl) + Environment.NewLine;
insertOffset = insert.Offset + options.GetWhitespaces(lineSegment.Offset).Length + provider.OutputNode(options.Dom, varDecl.TypeReference).Length + " ".Length;
TextReplaceChange replace = new TextReplaceChange();
replace.FileName = options.Document.FileName;
replace.Offset = data.SelectionRange.Offset;
replace.RemovedChars = data.SelectionRange.Length;
replace.InsertedText = varName;
result.Add(replace);
replaceOffset = replace.Offset;
if (insert.Offset < replaceOffset)
{
replaceOffset += insert.InsertedText.Length - insert.RemovedChars;
}
varCount++;
}
result.Add(insert);
varCount++;
selectionStart = insert.Offset;
return(result);
}
lineSegment = data.Document.GetLine(data.Caret.Line);
string line = data.Document.GetTextAt(lineSegment);
Expression expression = provider.ParseExpression(line);
if (expression == null)
{
return(result);
}
resolveResult = resolver.Resolve(new ExpressionResult(line), new DomLocation(options.Document.TextEditor.CursorLine, options.Document.TextEditor.CursorColumn));
if (resolveResult.ResolvedType != null && !string.IsNullOrEmpty(resolveResult.ResolvedType.FullName))
{
TextReplaceChange insert = new TextReplaceChange();
insert.FileName = options.Document.FileName;
insert.Description = GettextCatalog.GetString("Insert variable declaration");
insert.Offset = lineSegment.Offset + options.GetWhitespaces(lineSegment.Offset).Length;
varName = CreateVariableName(resolveResult.ResolvedType, visitor);
LocalVariableDeclaration varDecl = new LocalVariableDeclaration(options.ShortenTypeName(resolveResult.ResolvedType).ConvertToTypeReference());
varDecl.Variables.Add(new VariableDeclaration(varName, expression));
insert.RemovedChars = expression.EndLocation.Column - 1;
insert.InsertedText = provider.OutputNode(options.Dom, varDecl);
insertOffset = insert.Offset + provider.OutputNode(options.Dom, varDecl.TypeReference).Length + " ".Length;
result.Add(insert);
varCount++;
int idx = 0;
while (idx < insert.InsertedText.Length - varName.Length)
{
if (insert.InsertedText.Substring(idx, varName.Length) == varName && (idx == 0 || insert.InsertedText[idx - 1] == ' ') && (idx == insert.InsertedText.Length - varName.Length - 1 || insert.InsertedText[idx + varName.Length] == ' '))
{
selectionStart = insert.Offset + idx;
selectionEnd = selectionStart + varName.Length;
break;
}
idx++;
}
}
return(result);
}
