ExpressionResult GetExpressionAt(ITextEditor editor, int caretLine, int caretColumn)
{
ExpressionResult expr = ParserService.FindFullExpression(caretLine, caretColumn, editor.Document, editor.FileName);
// if no expression, look one character back (works better with method calls, e.g. Foo()(*caret*))
if (string.IsNullOrWhiteSpace(expr.Expression) && caretColumn > 1)
{
expr = ParserService.FindFullExpression(caretLine, caretColumn - 1, editor.Document, editor.FileName);
}
return(expr);
}