Symfony\Bridge\Twig\Extension\FormExtension::__construct PHP Méthode

    public function __construct($renderer = null)
    {
        if ($renderer instanceof TwigRendererInterface) {
            @trigger_error(sprintf('Passing a Twig Form Renderer to the "%s" constructor is deprecated since version 3.2 and won\'t be possible in 4.0. Pass the Twig_Environment to the TwigRendererEngine constructor instead.', static::class), E_USER_DEPRECATED);
        } elseif (null !== $renderer && !(is_array($renderer) && isset($renderer[0], $renderer[1]) && $renderer[0] instanceof ContainerInterface)) {
            throw new \InvalidArgumentException(sprintf('Passing any arguments the constructor of %s is reserved for internal use.', __CLASS__));
        }
        $this->renderer = $renderer;
    }