static bool TryDeclarationTypeInference(ITextEditor editor, IDocumentLine curLine)
{
string lineText = editor.Document.GetText(curLine.Offset, curLine.Length);
ILexer lexer = ParserFactory.CreateLexer(SupportedLanguage.VBNet, new System.IO.StringReader(lineText));
if (lexer.NextToken().Kind != Tokens.Dim)
{
return(false);
}
if (lexer.NextToken().Kind != Tokens.Identifier)
{
return(false);
}
if (lexer.NextToken().Kind != Tokens.As)
{
return(false);
}
Token t1 = lexer.NextToken();
if (t1.Kind != Tokens.QuestionMark)
{
return(false);
}
Token t2 = lexer.NextToken();
if (t2.Kind != Tokens.Assign)
{
return(false);
}
string expr = lineText.Substring(t2.Location.Column);
LoggingService.Debug("DeclarationTypeInference: >" + expr + "<");
ResolveResult rr = ParserService.Resolve(new ExpressionResult(expr),
editor.Caret.Line,
t2.Location.Column, editor.FileName,
editor.Document.Text);
if (rr != null && rr.ResolvedType != null)
{
ClassFinder context = new ClassFinder(ParserService.GetParseInformation(editor.FileName), editor.Caret.Line, t1.Location.Column);
VBNetAmbience ambience = new VBNetAmbience();
if (CodeGenerator.CanUseShortTypeName(rr.ResolvedType, context))
{
ambience.ConversionFlags = ConversionFlags.None;
}
else
{
ambience.ConversionFlags = ConversionFlags.UseFullyQualifiedTypeNames;
}
string typeName = ambience.Convert(rr.ResolvedType);
using (editor.Document.OpenUndoGroup()) {
int offset = curLine.Offset + t1.Location.Column - 1;
editor.Document.Remove(offset, 1);
editor.Document.Insert(offset, typeName);
}
editor.Caret.Column += typeName.Length - 1;
return(true);
}
return(false);
}
public void FixtureSetUp()
{
valueCollection = SharedProjectContentRegistryForTests.Instance.Mscorlib.GetClass("System.Collections.Generic.Dictionary.ValueCollection", 2);
Assert.AreEqual(2, valueCollection.TypeParameters.Count);
Assert.AreEqual(2, valueCollection.DeclaringType.TypeParameters.Count);
fullMemberNameAmbience = new VBNetAmbience();
fullMemberNameAmbience.ConversionFlags = ConversionFlags.StandardConversionFlags | ConversionFlags.UseFullyQualifiedMemberNames;
}
