Doctrine Mongodb Expression

/!\ Mongodb Expression doesn't support not or xor

These not supported operator was not allowed to use and the parser will throw UnsupportedTokenTypeException

use Doctrine\Common\EventManager;
use Doctrine\MongoDB\Connection;
use Doctrine\MongoDB\Database;
use Symftony\Xpression\QueryStringParser;
use Symftony\Xpression\Bridge\Doctrine\MongoDb\ExprBuilder;
use Symftony\Xpression\Parser;

QueryStringParser::correctServerQueryString();

$parser = new Parser(new ExprBuilder());
$expression = $parser->parse($_GET['query']);

$connection = new Connection('mongo://localhost/');
$database = new Database($connection, $connection->myDatabase, new EventManager());
$collection = $database->selectCollection('myCollection');

$results = $collection
    ->createQueryBuilder()
    ->setQueryArray($expression->getQuery())
    ->getQuery()
    ->execute();