public function __construct(EventDispatcherInterface $dispatcher, ControllerResolverInterface $resolver, RequestStack $requestStack = null, ArgumentResolverInterface $argumentResolver = null)
    {
        $this->dispatcher = $dispatcher;
        $this->resolver = $resolver;
        $this->requestStack = $requestStack ?: new RequestStack();
        $this->argumentResolver = $argumentResolver;

        if (null === $this->argumentResolver) {
            @trigger_error(sprintf('As of 3.1 an %s is used to resolve arguments. In 4.0 the $argumentResolver becomes the %s if no other is provided instead of using the $resolver argument.', ArgumentResolverInterface::class, ArgumentResolver::class), E_USER_DEPRECATED);
            // fallback in case of deprecations
            $this->argumentResolver = $resolver;
        }
    }