public function semanticalError($message = '', $token = null)
{
if ($token === null) {
$token = $this->_lexer->lookahead;
}
// Minimum exposed chars ahead of token
$distance = 12;
// Find a position of a final word to display in error string
$dql = $this->_query->getDql();
$length = strlen($dql);
$pos = $token['position'] + $distance;
$pos = strpos($dql, ' ', ($length > $pos) ? $pos : $length);
$length = ($pos !== false) ? $pos - $token['position'] : $distance;
// Building informative message
$message = 'line 0, col ' . (
(isset($token['position']) && $token['position'] > 0) ? $token['position'] : '-1'
) . " near '" . substr($dql, $token['position'], $length) . "': Error: " . $message;
throw \Doctrine\ORM\Query\QueryException::semanticalError($message);
}