public static void GotoDefinition(IVsTextView vsTextView)
{
int line, column;
string text;
TextSpan[] span = new TextSpan[1];
Parser parser = new Parser(LuaGrammar.Instance);
Scanner scanner = parser.Scanner;
vsTextView.GetCaretPos(out line, out column);
vsTextView.GetSelectedText(out text);
vsTextView.GetWordExtent(line, column, (uint)WORDEXTFLAGS.WORDEXT_CURRENT, span);
vsTextView.SetSelection(span[0].iStartLine, span[0].iStartIndex, span[0].iEndLine, span[0].iEndIndex);
string word;
vsTextView.GetTextStream(span[0].iStartLine, span[0].iStartIndex, span[0].iEndLine, span[0].iEndIndex, out word);
TextSpan?res = _model.GetDeclarationLocation(word, span[0]);
if (res != null)
{
vsTextView.SetCaretPos(res.Value.iStartLine, res.Value.iStartIndex);
}
}