bool ShowNewCompletion(ITextEditor editor)
{
CSharpExpressionFinder ef = CreateExpressionFinder(editor.Document.Text);
int cursor = editor.Caret.Offset;
string documentToCursor = editor.Document.GetText(0, cursor);
ExpressionResult expressionResult = ef.FindExpression(documentToCursor, cursor);
if (expressionResult.Context.IsObjectCreation)
{
var currentLine = editor.Document.GetLineForOffset(cursor);
string lineText = editor.Document.GetText(currentLine.Offset, cursor - currentLine.Offset);
// when the new follows an assignment, improve code-completion by detecting the
// type of the variable that is assigned to
if (lineText.Replace(" ", "").EndsWith("=new"))
{
int pos = lineText.LastIndexOf('=');
ExpressionContext context = FindExactContextForNewCompletion(editor, documentToCursor,
currentLine, pos);
if (context != null)
{
expressionResult.Context = context;
}
}
ShowCompletion(new NRefactoryCtrlSpaceCompletionItemProvider(LanguageProperties.CSharp, expressionResult.Context, ProjectContent), editor, ProjectContent);
return(true);
}
return(false);
}
bool ShowNewCompletion(SharpDevelopTextAreaControl editor)
{
CSharpExpressionFinder ef = CreateExpressionFinder(editor.FileName);
int cursor = editor.ActiveTextAreaControl.Caret.Offset;
string documentToCursor = editor.Document.GetText(0, cursor);
ExpressionResult expressionResult = ef.FindExpression(documentToCursor, cursor);
LoggingService.Debug("ShowNewCompletion: expression is " + expressionResult);
if (expressionResult.Context.IsObjectCreation)
{
LineSegment currentLine = editor.Document.GetLineSegmentForOffset(cursor);
string lineText = editor.Document.GetText(currentLine.Offset, cursor - currentLine.Offset);
// when the new follows an assignment, improve code-completion by detecting the
// type of the variable that is assigned to
if (lineText.Replace(" ", "").EndsWith("=new"))
{
int pos = lineText.LastIndexOf('=');
ExpressionContext context = FindExactContextForNewCompletion(editor, documentToCursor,
currentLine, pos);
if (context != null)
{
expressionResult.Context = context;
}
}
editor.ShowCompletionWindow(new CtrlSpaceCompletionDataProvider(expressionResult.Context), ' ');
return(true);
}
return(false);
}
ExpressionContext FindExactContextForNewCompletion(SharpDevelopTextAreaControl editor, string documentToCursor,
LineSegment currentLine, int pos)
{
CSharpExpressionFinder ef = CreateExpressionFinder(editor.FileName);
// find expression on left hand side of the assignment
ExpressionResult lhsExpr = ef.FindExpression(documentToCursor, currentLine.Offset + pos);
if (lhsExpr.Expression != null)
{
ResolveResult rr = ParserService.Resolve(lhsExpr, currentLine.LineNumber, pos, editor.FileName, editor.Text);
if (rr != null && rr.ResolvedType != null)
{
ExpressionContext context;
IClass c;
if (rr.ResolvedType.IsArrayReturnType)
{
// when creating an array, all classes deriving from the array's element type are allowed
IReturnType elementType = rr.ResolvedType.CastToArrayReturnType().ArrayElementType;
c = elementType != null?elementType.GetUnderlyingClass() : null;
context = ExpressionContext.TypeDerivingFrom(elementType, false);
}
else
{
// when creating a normal instance, all non-abstract classes deriving from the type
// are allowed
c = rr.ResolvedType.GetUnderlyingClass();
context = ExpressionContext.TypeDerivingFrom(rr.ResolvedType, true);
}
if (c != null && context.ShowEntry(c))
{
// Try to suggest an entry (List<int> a = new => suggest List<int>).
string suggestedClassName = LanguageProperties.CSharp.CodeGenerator.GenerateCode(
CodeGenerator.ConvertType(
rr.ResolvedType,
new ClassFinder(ParserService.GetParseInformation(editor.FileName), editor.ActiveTextAreaControl.Caret.Line + 1, editor.ActiveTextAreaControl.Caret.Column + 1)
), "");
if (suggestedClassName != c.Name)
{
// create an IClass instance that includes the type arguments in its name
context.SuggestedItem = new RenamedClass(c, suggestedClassName);
}
else
{
context.SuggestedItem = c;
}
}
return(context);
}
}
return(null);
}
public ExpressionResult getExpressionFromCodeSnippet(TextArea textArea)
{
IExpressionFinder finder = new CSharpExpressionFinder(this.parseInformation);
var firstMethodOffset = calculateFirstMethodOffset();
var adjustedSnippeetText = getAdjustedSnippetText(textArea, firstMethodOffset);
var offset = firstMethodOffset + textArea.Caret.Offset;
var expression = finder.FindExpression(adjustedSnippeetText, offset);
return(expression);
}
private bool ShowNewCompletion(CodeEditorControl editor)
{
CSharpExpressionFinder ef = new CSharpExpressionFinder(editor.ActiveViewControl.FileName);
int cursor = editor.ActiveViewControl.Caret.Offset;
ExpressionContext context = ef.FindExpression(ScriptControl.Parser.ProjectParser.GetFileContents(editor.FileName).Substring(0, cursor) + " T.", cursor + 2).Context;
if (context.IsObjectCreation)
{
editor.ActiveViewControl.ShowCompletionWindow(new CtrlSpaceCompletionDataProvider(context), ' ');
return(true);
}
return(false);
}
bool ShowNewCompletion(SharpDevelopTextAreaControl editor)
{
CSharpExpressionFinder ef = new CSharpExpressionFinder(editor.FileName);
int cursor = editor.ActiveTextAreaControl.Caret.Offset;
ExpressionContext context = ef.FindExpression(editor.Document.GetText(0, cursor) + " T.", cursor + 2).Context;
if (context.IsObjectCreation)
{
editor.ShowCompletionWindow(new CtrlSpaceCompletionDataProvider(context), ' ');
return(true);
}
return(false);
}
public override CodeCompletionKeyPressResult HandleKeyPress(ITextEditor editor, char ch, IProjectContent projectContent)
{
CSharpExpressionFinder ef = CreateExpressionFinder(editor.Document.Text);
int cursor = editor.Caret.Offset;
CodeCompletionKeyPressResult?returnResult = null;
switch (ch)
{
case '[':
{
var line = editor.Document.GetLineForOffset(cursor);
/* TODO: AVALONEDIT Reimplement this
* if (TextUtilities.FindPrevWordStart(editor.ActiveTextAreaControl.Document, cursor) <= line.Offset) {
* // [ is first character on the line
* // -> Attribute completion
* editor.ShowCompletionWindow(new AttributesDataProvider(ParserService.CurrentProjectContent), ch);
* return true;
* }*/
}
break;
case ' ':
returnResult = CompleteSpace(editor, ef);
break;
case ',':
returnResult = CompleteComma(editor, ch, projectContent);
break;
case '=':
returnResult = CompleteAssigment(editor, ch, ef);
break;
case '.':
returnResult = ShowDotCompletion(editor);
break;
case '>':
{
if (IsInComment(editor))
{
returnResult = CodeCompletionKeyPressResult.None;
break;
}
returnResult = CompleteMore(editor, cursor, projectContent);
}
break;
}
if (returnResult.HasValue)
{
return(returnResult.Value);
}
if (char.IsLetter(ch) || ch == '_')
{
if (editor.SelectionLength > 0)
{
// allow code completion when overwriting an identifier
int endOffset = editor.SelectionStart + editor.SelectionLength;
// but block code completion when overwriting only part of an identifier
if (endOffset < editor.Document.TextLength && char.IsLetterOrDigit(editor.Document.GetCharAt(endOffset)))
{
return(CodeCompletionKeyPressResult.None);
}
editor.Document.Remove(editor.SelectionStart, editor.SelectionLength);
// Read caret position again after removal - this is required because the document might change in other
// locations, too (e.g. bound elements in snippets).
cursor = editor.Caret.Offset;
}
var prevChar = GetPreviousChar(editor, cursor);
var afterUnderscore = prevChar == '_';
if (afterUnderscore)
{
cursor--;
prevChar = GetPreviousChar(editor, cursor);
}
if (!char.IsLetterOrDigit(prevChar) && prevChar != '.' && !IsInComment(editor))
{
var result = ef.FindExpression(editor.Document.Text, cursor);
if (result.Context != ExpressionContext.IdentifierExpected)
{
var ctrlSpaceProvider = new NRefactoryCtrlSpaceCompletionItemProvider(
LanguageProperties.CSharp, result.Context, ProjectContent)
{
ShowTemplates = true,
AllowCompleteExistingExpression = afterUnderscore
};
ShowCompletion(ctrlSpaceProvider, editor, projectContent);
return(CodeCompletionKeyPressResult.CompletedIncludeKeyInCompletion);
}
}
}
return(base.HandleKeyPress(editor, ch, projectContent));
}
public override bool HandleKeyPress(SharpDevelopTextAreaControl editor, char ch)
{
CSharpExpressionFinder ef = CreateExpressionFinder(editor.FileName);
int cursor = editor.ActiveTextAreaControl.Caret.Offset;
ExpressionContext context = null;
if (ch == '(')
{
if (context != null)
{
if (IsInComment(editor))
{
return(false);
}
editor.ShowCompletionWindow(new CtrlSpaceCompletionDataProvider(context), ch);
return(true);
}
else if (EnableMethodInsight && CodeCompletionOptions.InsightEnabled)
{
editor.ShowInsightWindow(new MethodInsightDataProvider());
return(true);
}
return(false);
}
else if (ch == '[')
{
LineSegment line = editor.Document.GetLineSegmentForOffset(cursor);
if (TextUtilities.FindPrevWordStart(editor.Document, cursor) <= line.Offset)
{
// [ is first character on the line
// -> Attribute completion
editor.ShowCompletionWindow(new AttributesDataProvider(ParserService.CurrentProjectContent), ch);
return(true);
}
}
else if (ch == ',' && CodeCompletionOptions.InsightRefreshOnComma && CodeCompletionOptions.InsightEnabled)
{
if (InsightRefreshOnComma(editor, ch))
{
return(true);
}
}
else if (ch == '=')
{
LineSegment curLine = editor.Document.GetLineSegmentForOffset(cursor);
string documentText = editor.Text;
int position = editor.ActiveTextAreaControl.Caret.Offset - 2;
if (position > 0 && (documentText[position + 1] == '+'))
{
ExpressionResult result = ef.FindFullExpression(documentText, position);
if (result.Expression != null)
{
ResolveResult resolveResult = ParserService.Resolve(result, editor.ActiveTextAreaControl.Caret.Line + 1, editor.ActiveTextAreaControl.Caret.Column + 1, editor.FileName, documentText);
if (resolveResult != null && resolveResult.ResolvedType != null)
{
IClass underlyingClass = resolveResult.ResolvedType.GetUnderlyingClass();
if (underlyingClass != null && underlyingClass.IsTypeInInheritanceTree(ParserService.CurrentProjectContent.GetClass("System.MulticastDelegate", 0)))
{
EventHandlerCompletitionDataProvider eventHandlerProvider = new EventHandlerCompletitionDataProvider(result.Expression, resolveResult);
eventHandlerProvider.InsertSpace = true;
editor.ShowCompletionWindow(eventHandlerProvider, ch);
}
}
}
}
else if (position > 0)
{
ExpressionResult result = ef.FindFullExpression(documentText, position);
if (result.Expression != null)
{
ResolveResult resolveResult = ParserService.Resolve(result, editor.ActiveTextAreaControl.Caret.Line + 1, editor.ActiveTextAreaControl.Caret.Column + 1, editor.FileName, documentText);
if (resolveResult != null && resolveResult.ResolvedType != null)
{
if (ProvideContextCompletion(editor, resolveResult.ResolvedType, ch))
{
return(true);
}
}
}
}
}
else if (ch == '.')
{
editor.ShowCompletionWindow(new CSharpCodeCompletionDataProvider(), ch);
return(true);
}
else if (ch == '>')
{
if (IsInComment(editor))
{
return(false);
}
char prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
if (prevChar == '-')
{
editor.ShowCompletionWindow(new PointerArrowCompletionDataProvider(), ch);
return(true);
}
}
if (char.IsLetter(ch) && CodeCompletionOptions.CompleteWhenTyping)
{
if (editor.ActiveTextAreaControl.SelectionManager.HasSomethingSelected)
{
// allow code completion when overwriting an identifier
cursor = editor.ActiveTextAreaControl.SelectionManager.SelectionCollection[0].Offset;
int endOffset = editor.ActiveTextAreaControl.SelectionManager.SelectionCollection[0].EndOffset;
// but block code completion when overwriting only part of an identifier
if (endOffset < editor.Document.TextLength && char.IsLetterOrDigit(editor.Document.GetCharAt(endOffset)))
{
return(false);
}
editor.ActiveTextAreaControl.SelectionManager.RemoveSelectedText();
editor.ActiveTextAreaControl.Caret.Position = editor.Document.OffsetToPosition(cursor);
}
char prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
bool afterUnderscore = prevChar == '_';
if (afterUnderscore)
{
cursor--;
prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
}
if (!char.IsLetterOrDigit(prevChar) && prevChar != '.' && !IsInComment(editor))
{
ExpressionResult result = ef.FindExpression(editor.Text, cursor);
LoggingService.Debug("CC: Beginning to type a word, result=" + result);
if (result.Context != ExpressionContext.IdentifierExpected)
{
editor.ShowCompletionWindow(new CtrlSpaceCompletionDataProvider(result.Context)
{
ShowTemplates = true,
AllowCompleteExistingExpression = afterUnderscore
}, '\0');
}
}
}
return(base.HandleKeyPress(editor, ch));
}
void FindExpr(string program, string location, string expectedExpression, ExpressionContext expectedContext)
{
int pos = program.IndexOf(location);
if (pos < 0)
{
Assert.Fail("location not found in program");
}
ExpressionResult er = ef.FindExpression(program, pos);
Assert.AreEqual(expectedExpression, er.Expression);
Assert.AreEqual(expectedContext, er.Context);
Assert.AreEqual(expectedExpression, ExtractRegion(program, er.Region));
}
public override CodeCompletionKeyPressResult HandleKeyPress(ITextEditor editor, char ch)
{
CSharpExpressionFinder ef = CreateExpressionFinder(editor.FileName);
int cursor = editor.Caret.Offset;
if (ch == '[')
{
var line = editor.Document.GetLineForOffset(cursor);
/* TODO: AVALONEDIT Reimplement this
* if (TextUtilities.FindPrevWordStart(editor.ActiveTextAreaControl.Document, cursor) <= line.Offset) {
* // [ is first character on the line
* // -> Attribute completion
* editor.ShowCompletionWindow(new AttributesDataProvider(ParserService.CurrentProjectContent), ch);
* return true;
* }*/
}
else if (ch == ',' && CodeCompletionOptions.InsightRefreshOnComma && CodeCompletionOptions.InsightEnabled)
{
IInsightWindow insightWindow;
if (insightHandler.InsightRefreshOnComma(editor, ch, out insightWindow))
{
return(CodeCompletionKeyPressResult.Completed);
}
}
else if (ch == '=')
{
var curLine = editor.Document.GetLineForOffset(cursor);
string documentText = editor.Document.Text;
int position = editor.Caret.Offset - 2;
if (position > 0 && (documentText[position + 1] == '+'))
{
ExpressionResult result = ef.FindFullExpression(documentText, position);
if (result.Expression != null)
{
ResolveResult resolveResult = ParserService.Resolve(result, editor.Caret.Line, editor.Caret.Column, editor.FileName, documentText);
if (resolveResult != null && resolveResult.ResolvedType != null)
{
IClass underlyingClass = resolveResult.ResolvedType.GetUnderlyingClass();
if (underlyingClass != null && underlyingClass.IsTypeInInheritanceTree(ParserService.CurrentProjectContent.GetClass("System.MulticastDelegate", 0)))
{
EventHandlerCompletionItemProvider eventHandlerProvider = new EventHandlerCompletionItemProvider(result.Expression, resolveResult);
eventHandlerProvider.ShowCompletion(editor);
return(CodeCompletionKeyPressResult.Completed);
}
}
}
}
else if (position > 0)
{
ExpressionResult result = ef.FindFullExpression(documentText, position);
if (result.Expression != null)
{
ResolveResult resolveResult = ParserService.Resolve(result, editor.Caret.Line, editor.Caret.Column, editor.FileName, documentText);
if (resolveResult != null && resolveResult.ResolvedType != null)
{
if (ProvideContextCompletion(editor, resolveResult.ResolvedType, ch))
{
return(CodeCompletionKeyPressResult.Completed);
}
}
}
}
}
else if (ch == '.')
{
new CSharpCodeCompletionDataProvider().ShowCompletion(editor);
return(CodeCompletionKeyPressResult.Completed);
}
else if (ch == '>')
{
if (IsInComment(editor))
{
return(CodeCompletionKeyPressResult.None);
}
char prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
if (prevChar == '-')
{
new PointerArrowCompletionDataProvider().ShowCompletion(editor);
return(CodeCompletionKeyPressResult.Completed);
}
}
if (char.IsLetter(ch) && CodeCompletionOptions.CompleteWhenTyping)
{
if (editor.SelectionLength > 0)
{
// allow code completion when overwriting an identifier
int endOffset = editor.SelectionStart + editor.SelectionLength;
// but block code completion when overwriting only part of an identifier
if (endOffset < editor.Document.TextLength && char.IsLetterOrDigit(editor.Document.GetCharAt(endOffset)))
{
return(CodeCompletionKeyPressResult.None);
}
editor.Document.Remove(editor.SelectionStart, editor.SelectionLength);
// Read caret position again after removal - this is required because the document might change in other
// locations, too (e.g. bound elements in snippets).
cursor = editor.Caret.Offset;
}
char prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
bool afterUnderscore = prevChar == '_';
if (afterUnderscore)
{
cursor--;
prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
}
if (!char.IsLetterOrDigit(prevChar) && prevChar != '.' && !IsInComment(editor))
{
ExpressionResult result = ef.FindExpression(editor.Document.Text, cursor);
LoggingService.Debug("CC: Beginning to type a word, result=" + result);
if (result.Context != ExpressionContext.IdentifierExpected)
{
var ctrlSpaceProvider = new NRefactoryCtrlSpaceCompletionItemProvider(LanguageProperties.CSharp, result.Context);
ctrlSpaceProvider.ShowTemplates = true;
ctrlSpaceProvider.AllowCompleteExistingExpression = afterUnderscore;
ctrlSpaceProvider.ShowCompletion(editor);
return(CodeCompletionKeyPressResult.CompletedIncludeKeyInCompletion);
}
}
}
return(base.HandleKeyPress(editor, ch));
}
public ExpressionResult getExpressionFromTextArea(TextArea textArea)
{
IExpressionFinder finder = new CSharpExpressionFinder(this.parseInformation);
return(finder.FindExpression(textArea.Document.TextContent, textArea.Caret.Offset));
}
