bool DoCaseCompletion(ITextEditor editor)
{
ITextEditorCaret caret = editor.Caret;
var r = new NRefactoryResolver(LanguageProperties.CSharp);
if (r.Initialize(ParserService.GetParseInformation(editor.Document.Text, ProjectContent), caret.Line, caret.Column))
{
NRefactory.Ast.INode currentMember = r.ParseCurrentMember(editor.Document.Text);
if (currentMember != null)
{
var ccsf = new CaseCompletionSwitchFinder(caret.Line, caret.Column);
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);
}
ResolveResult ResolveAtCaret(ParserUpdateStepEventArgs e)
{
if (disableDefinitionView)
{
return(null);
}
IWorkbenchWindow window = WorkbenchSingleton.Workbench.ActiveWorkbenchWindow;
if (window == null)
{
return(null);
}
ITextEditorProvider provider = window.ActiveViewContent as ITextEditorProvider;
if (provider == null)
{
return(null);
}
ITextEditor editor = provider.TextEditor;
// e might be null when this is a manually triggered update
// don't resolve when an unrelated file was changed
if (e != null && editor.FileName != e.FileName)
{
return(null);
}
IExpressionFinder expressionFinder = ParserService.GetExpressionFinder(editor.FileName);
if (expressionFinder == null)
{
return(null);
}
ITextEditorCaret caret = editor.Caret;
string content = (e == null) ? editor.Document.Text : e.Content.Text;
if (caret.Offset > content.Length)
{
LoggingService.Debug("caret.Offset = " + caret.Offset + ", content.Length=" + content.Length);
return(null);
}
try {
ExpressionResult expr = expressionFinder.FindFullExpression(content, caret.Offset);
if (expr.Expression == null)
{
return(null);
}
return(ParserService.Resolve(expr, caret.Line, caret.Column, editor.FileName, content));
} catch (Exception ex) {
disableDefinitionView = true;
ctl.Visibility = Visibility.Collapsed;
MessageService.ShowException(ex, "Error resolving at " + caret.Line + "/" + caret.Column
+ ". DefinitionViewPad is disabled until you restart SharpDevelop.");
return(null);
}
}
