public function makeTwigTokenParsers($parsers = [])
    {
        if (!is_array($parsers)) {
            $parsers = [];
        }

        $extraParsers = $this->listTokenParsers();
        foreach ($extraParsers as $obj) {
            if (!$obj instanceof Twig_TokenParser) {
                continue;
            }

            $parsers[] = $obj;
        }

        return $parsers;
    }