/// <summary>
/// Reparses the code of the current scope and returns the object (either IExpression or ITypeDeclaration derivative)
/// that is beneath the caret location.
///
/// Used for code completion/symbol resolution.
/// Mind the extra options that might be passed via the Options parameter.
/// </summary>
/// <param name="ctxt">Can be null</param>
public static ISyntaxRegion GetScopedCodeObject(IEditorData editor,
ResolverContextStack ctxt = null,
AstReparseOptions Options = 0)
{
if (ctxt == null)
{
ctxt = ResolverContextStack.Create(editor);
}
var code = editor.ModuleCode;
int start = 0;
var startLocation = CodeLocation.Empty;
bool IsExpression = false;
if (ctxt.CurrentContext.ScopedStatement is IExpressionContainingStatement)
{
var exprs = ((IExpressionContainingStatement)ctxt.CurrentContext.ScopedStatement).SubExpressions;
IExpression targetExpr = null;
if (exprs != null)
{
foreach (var ex in exprs)
{
if ((targetExpr = ExpressionHelper.SearchExpressionDeeply(ex, editor.CaretLocation, true))
!= ex)
{
break;
}
}
}
if (targetExpr != null && editor.CaretLocation >= targetExpr.Location && editor.CaretLocation <= targetExpr.EndLocation)
{
startLocation = targetExpr.Location;
start = DocumentHelper.LocationToOffset(editor.ModuleCode, startLocation);
IsExpression = true;
}
}
if (!IsExpression)
{
// First check if caret is inside a comment/string etc.
int lastStart = -1;
int lastEnd = -1;
var caretContext = CaretContextAnalyzer.GetTokenContext(code, editor.CaretOffset, out lastStart, out lastEnd);
// Return if comment etc. found
if (caretContext != TokenContext.None)
{
return(null);
}
start = CaretContextAnalyzer.SearchExpressionStart(code, editor.CaretOffset - 1,
(lastEnd > 0 && lastEnd < editor.CaretOffset) ? lastEnd : 0);
startLocation = DocumentHelper.OffsetToLocation(editor.ModuleCode, start);
}
if (start < 0 || editor.CaretOffset <= start)
{
return(null);
}
var expressionCode = code.Substring(start, Options.HasFlag(AstReparseOptions.AlsoParseBeyondCaret) ? code.Length - start : editor.CaretOffset - start);
var parser = DParser.Create(new StringReader(expressionCode));
parser.Lexer.SetInitialLocation(startLocation);
parser.Step();
if (!IsExpression && Options.HasFlag(AstReparseOptions.OnlyAssumeIdentifierList) && parser.Lexer.LookAhead.Kind == DTokens.Identifier)
{
return(parser.IdentifierList());
}
else if (IsExpression || parser.IsAssignExpression())
{
if (Options.HasFlag(AstReparseOptions.ReturnRawParsedExpression))
{
return(parser.AssignExpression());
}
else
{
return(ExpressionHelper.SearchExpressionDeeply(parser.AssignExpression(), editor.CaretLocation, Options.HasFlag(AstReparseOptions.WatchForParamExpressions)));
}
}
else
{
return(parser.Type());
}
}
public override bool KeyPress(Gdk.Key key, char keyChar, Gdk.ModifierType modifier)
{
bool skipFormatting = StateTracker.Engine.IsInsideCommentOrString ||
StateTracker.Engine.IsInsidePreprocessorDirective;
cursorPositionBeforeKeyPress = textEditorData.Caret.Offset;
if (keyChar == ';' && !(textEditorData.CurrentMode is TextLinkEditMode))
{
DoInsertTemplate();
}
if (key == Gdk.Key.Tab)
{
stateTracker.UpdateEngine();
if (stateTracker.Engine.IsInsideStringLiteral && !textEditorData.IsSomethingSelected)
{
var tokenCtxt = CaretContextAnalyzer.GetTokenContext(textEditorData.Document.Text, textEditorData.Caret.Offset);
if (tokenCtxt == TokenContext.String || tokenCtxt == TokenContext.VerbatimString)
{
textEditorData.InsertAtCaret("\\t");
return(false);
}
}
}
if (key == Gdk.Key.Tab && DefaultSourceEditorOptions.Instance.TabIsReindent && !CompletionWindowManager.IsVisible && !(textEditorData.CurrentMode is TextLinkEditMode) && !DoInsertTemplate() && !textEditorData.IsSomethingSelected)
{
int cursor = textEditorData.Caret.Offset;
if (stateTracker.Engine.IsInsideVerbatimString && cursor > 0 && cursor < textEditorData.Document.TextLength && textEditorData.GetCharAt(cursor - 1) == '"')
{
stateTracker.UpdateEngine(cursor + 1);
}
if (stateTracker.Engine.IsInsideVerbatimString)
{
// insert normal tab inside r" ... "
if (textEditorData.IsSomethingSelected)
{
textEditorData.SelectedText = "\t";
}
else
{
textEditorData.Insert(cursor, "\t");
}
textEditorData.Document.CommitLineUpdate(textEditorData.Caret.Line);
}
else if (cursor >= 1)
{
if (textEditorData.Caret.Column > 1)
{
int delta = cursor - this.cursorPositionBeforeKeyPress;
if (delta < 2 && delta > 0)
{
textEditorData.Remove(cursor - delta, delta);
textEditorData.Caret.Offset = cursor - delta;
textEditorData.Document.CommitLineUpdate(textEditorData.Caret.Line);
}
}
stateTracker.UpdateEngine();
DoReSmartIndent();
}
return(false);
}
//do the smart indent
if (textEditorData.Options.IndentStyle == IndentStyle.Smart || textEditorData.Options.IndentStyle == IndentStyle.Virtual)
{
bool retval;
//capture some of the current state
int oldBufLen = textEditorData.Length;
int oldLine = textEditorData.Caret.Line + 1;
bool hadSelection = textEditorData.IsSomethingSelected;
bool reIndent = false;
//pass through to the base class, which actually inserts the character
//and calls HandleCodeCompletion etc to handles completion
using (var undo = textEditorData.OpenUndoGroup()) {
DoPreInsertionSmartIndent(key);
}
bool automaticReindent;
using (var undo = textEditorData.OpenUndoGroup()) {
retval = base.KeyPress(key, keyChar, modifier);
//handle inserted characters
if (textEditorData.Caret.Offset <= 0 || textEditorData.IsSomethingSelected)
{
return(retval);
}
lastCharInserted = TranslateKeyCharForIndenter(key, keyChar, textEditorData.GetCharAt(textEditorData.Caret.Offset - 1));
if (lastCharInserted == '\0')
{
return(retval);
}
stateTracker.UpdateEngine();
if (key == Gdk.Key.Return && modifier == Gdk.ModifierType.ControlMask)
{
FixLineStart(textEditorData.Caret.Line + 1);
}
else
{
if (!(oldLine == textEditorData.Caret.Line + 1 && lastCharInserted == '\n') && (oldBufLen != textEditorData.Length || lastCharInserted != '\0'))
{
DoPostInsertionSmartIndent(lastCharInserted, hadSelection, out reIndent);
}
}
//reindent the line after the insertion, if needed
//N.B. if the engine says we need to reindent, make sure that it's because a char was
//inserted rather than just updating the stack due to moving around
stateTracker.UpdateEngine();
automaticReindent = (stateTracker.Engine.NeedsReindent && lastCharInserted != '\0');
if (key == Gdk.Key.Return && (reIndent || automaticReindent))
{
DoReSmartIndent();
}
}
if (key != Gdk.Key.Return && (reIndent || automaticReindent))
{
using (var undo = textEditorData.OpenUndoGroup()) {
DoReSmartIndent();
}
}
if (!skipFormatting && keyChar == '}')
{
using (var undo = textEditorData.OpenUndoGroup()) {
RunFormatter(new DocumentLocation(textEditorData.Caret.Location.Line, textEditorData.Caret.Location.Column));
}
}
stateTracker.UpdateEngine();
lastCharInserted = '\0';
return(retval);
}
if (textEditorData.Options.IndentStyle == IndentStyle.Auto && DefaultSourceEditorOptions.Instance.TabIsReindent && key == Gdk.Key.Tab)
{
bool retval = base.KeyPress(key, keyChar, modifier);
DoReSmartIndent();
return(retval);
}
//pass through to the base class, which actually inserts the character
//and calls HandleCodeCompletion etc to handles completion
var result = base.KeyPress(key, keyChar, modifier);
if (!skipFormatting && keyChar == '}')
{
RunFormatter(new DocumentLocation(textEditorData.Caret.Location.Line, textEditorData.Caret.Location.Column));
}
return(result);
}
/// <summary>
/// Reparses the code of the current scope and returns the object (either IExpression or ITypeDeclaration derivative)
/// that is beneath the caret location.
///
/// Used for code completion/symbol resolution.
/// Mind the extra options that might be passed via the Options parameter.
/// </summary>
/// <param name="ctxt">Can be null</param>
public static ISyntaxRegion GetScopedCodeObject(IEditorData editor,
AstReparseOptions Options = AstReparseOptions.AlsoParseBeyondCaret,
ResolutionContext ctxt = null)
{
if (ctxt == null)
{
ctxt = ResolutionContext.Create(editor);
}
var code = editor.ModuleCode;
int start = 0;
var startLocation = CodeLocation.Empty;
bool IsExpression = false;
if (ctxt.CurrentContext.ScopedStatement is IExpressionContainingStatement)
{
var exprs = ((IExpressionContainingStatement)ctxt.CurrentContext.ScopedStatement).SubExpressions;
IExpression targetExpr = null;
if (exprs != null)
{
foreach (var ex in exprs)
{
if ((targetExpr = ExpressionHelper.SearchExpressionDeeply(ex, editor.CaretLocation))
!= ex)
{
break;
}
}
}
if (targetExpr != null && editor.CaretLocation >= targetExpr.Location && editor.CaretLocation <= targetExpr.EndLocation)
{
startLocation = targetExpr.Location;
start = DocumentHelper.GetOffsetByRelativeLocation(editor.ModuleCode, editor.CaretLocation, editor.CaretOffset, startLocation);
IsExpression = true;
}
}
if (!IsExpression)
{
// First check if caret is inside a comment/string etc.
int lastStart = 0;
int lastEnd = 0;
if ((Options & AstReparseOptions.DontCheckForCommentsOrStringSurrounding) == 0)
{
var caretContext = CaretContextAnalyzer.GetTokenContext(code, editor.CaretOffset, out lastStart, out lastEnd);
// Return if comment etc. found
if (caretContext != TokenContext.None)
{
return(null);
}
}
// Could be somewhere in an ITypeDeclaration..
if (editor.CaretOffset < 0 || editor.CaretOffset >= code.Length)
{
return(null);
}
if (Lexer.IsIdentifierPart(code[editor.CaretOffset]))
{
start = editor.CaretOffset;
}
else if (editor.CaretOffset > 0 && Lexer.IsIdentifierPart(code[editor.CaretOffset - 1]))
{
start = editor.CaretOffset - 1;
}
start = CaretContextAnalyzer.SearchExpressionStart(code, start,
(lastEnd > 0 && lastEnd < editor.CaretOffset) ? lastEnd : 0);
startLocation = DocumentHelper.OffsetToLocation(editor.ModuleCode, start);
}
if (start < 0 || editor.CaretOffset < start)
{
return(null);
}
var sv = new StringView(code, start, Options.HasFlag(AstReparseOptions.AlsoParseBeyondCaret) ? code.Length - start : editor.CaretOffset - start);
var parser = DParser.Create(sv);
parser.Lexer.SetInitialLocation(startLocation);
parser.Step();
ITypeDeclaration td;
if (!IsExpression && Options.HasFlag(AstReparseOptions.OnlyAssumeIdentifierList) && parser.Lexer.LookAhead.Kind == DTokens.Identifier)
{
td = parser.IdentifierList();
}
else if (IsExpression || parser.IsAssignExpression())
{
if (Options.HasFlag(AstReparseOptions.ReturnRawParsedExpression))
{
return(parser.AssignExpression());
}
else
{
return(ExpressionHelper.SearchExpressionDeeply(parser.AssignExpression(), editor.CaretLocation));
}
}
else
{
td = parser.Type();
}
if (Options.HasFlag(AstReparseOptions.ReturnRawParsedExpression))
{
return(td);
}
while (td != null && td.InnerDeclaration != null && editor.CaretLocation <= td.InnerDeclaration.EndLocation)
{
td = td.InnerDeclaration;
}
return(td);
}
public override bool KeyPress(Key key, char keyChar, ModifierType modifier)
{
var ed = Document.Editor;
var dPolicy = Document.HasProject ? Document.Project.Policies.Get <DFormattingPolicy> ("text/x-d") :
PolicyService.GetDefaultPolicy <DFormattingPolicy> ("text/x-d");
if (key == Key.Return)
{
ed.DeleteSelectedText(true);
int lastBegin;
int lastEnd;
var caretCtxt = CaretContextAnalyzer.GetTokenContext(ed.Text, ed.Caret.Offset, out lastBegin, out lastEnd);
if (lastBegin >= 0 &&
(caretCtxt == TokenContext.BlockComment ||
caretCtxt == TokenContext.NestedComment))
{
var charsToInsert = " " +
(caretCtxt == TokenContext.BlockComment ?
'*' :
'+') + " ";
var commentBeginIndent = ed.GetLineIndent(ed.GetLineByOffset(lastBegin));
ed.InsertAtCaret(
Document.Editor.EolMarker +
commentBeginIndent +
(dPolicy.InsertStarAtCommentNewLine ? charsToInsert : ""));
return(false);
}
}
if (Document.Editor.Options.IndentStyle == IndentStyle.Smart || Document.Editor.Options.IndentStyle == IndentStyle.Virtual)
{
int newIndentation = 0;
if (key == Key.Return)
{
ed.InsertAtCaret(Document.Editor.EolMarker);
var tr = ed.Document.CreateReader();
var cb = DCodeFormatter.NativeFormatterInstance.CalculateIndentation(tr, ed.Caret.Line);
tr.Close();
newIndentation = cb == null ? 0 : cb.GetLineIndentation(ed.Caret.Line);
ed.InsertAtCaret(CalculateIndentationString(newIndentation));
return(false);
}
else if (keyChar == '{' || keyChar == '}' || keyChar == ':')
{
ed.DeleteSelectedText(true);
ed.InsertAtCaret(keyChar.ToString());
// Ensure that we aren't in a non-code area right now - automatically trying to format comments is awful
int lastBegin;
int lastEnd;
var caretCtxt = CaretContextAnalyzer.GetTokenContext(ed.Text, ed.Caret.Offset, out lastBegin, out lastEnd);
if (lastBegin >= 0 && caretCtxt != TokenContext.None)
{
return(false);
}
var origInd = ed.GetLineIndent(ed.Caret.Line);
int originalIndentation = origInd.Length;
var tr = ed.Document.CreateReader();
var cb = DCodeFormatter.NativeFormatterInstance.CalculateIndentation(tr, ed.Caret.Line);
tr.Close();
newIndentation = cb == null ? 0 : cb.GetLineIndentation(ed.Caret.Line);
var newInd = CalculateIndentationString(newIndentation);
if (origInd != newInd)
{
ed.Replace(
Document.Editor.GetLine(ed.Caret.Line).Offset,
originalIndentation,
newInd);
}
return(false);
}
}
return(base.KeyPress(key, keyChar, modifier));
}