Symfony\Component\Translation\Translator::addLoader PHP Метод

    public function addLoader($format, LoaderInterface $loader)
    {
        $this->loaders[$format] = $loader;
    }

 public function register(Container $app)
 {
     $app['translator'] = function ($app) {
         if (!isset($app['locale'])) {
             throw new \LogicException('You must define \'locale\' parameter or register the LocaleServiceProvider to use the TranslationServiceProvider');
         }
         $translator = new Translator($app['locale'], $app['translator.message_selector'], $app['translator.cache_dir'], $app['debug']);
         $translator->setFallbackLocales($app['locale_fallbacks']);
         $translator->addLoader('array', new ArrayLoader());
         $translator->addLoader('xliff', new XliffFileLoader());
         // Register default resources
         foreach ($app['translator.resources'] as $resource) {
             $translator->addResource($resource[0], $resource[1], $resource[2], $resource[3]);
         }
         foreach ($app['translator.domains'] as $domain => $data) {
             foreach ($data as $locale => $messages) {
                 $translator->addResource('array', $messages, $locale, $domain);
             }
         }
         return $translator;
     };
     $app['translator.listener'] = function ($app) {
         return new TranslatorListener($app['translator'], $app['request_stack']);
     };
     $app['translator.message_selector'] = function () {
         return new MessageSelector();
     };
     $app['translator.resources'] = $app->protect(function ($app) {
         return [];
     });
     $app['translator.domains'] = [];
     $app['locale_fallbacks'] = ['en'];
     $app['translator.cache_dir'] = null;
 }