/**
  * Register a template namespace.
  *
  * @param  string $namespace
  * @param  string $location
  *
  * @return void
  */
 public function addNamespace($namespace, $location)
 {
     $loader = $this->twig->getLoader();
     $loader->addPath($location, $namespace);
     foreach ($loader->getPaths() as $path) {
         if (is_dir($dir = $path . '/' . $namespace)) {
             $loader->prependPath($dir, $namespace);
         }
     }
 }
 /**
  * Make the twig environment.
  *
  * @return \Autarky\TwigTemplating\TwigEnvironment
  */
 public function makeTwigEnvironment(ContainerInterface $dic)
 {
     $config = $this->app->getConfig();
     $options = ['debug' => $config->get('app.debug')];
     if ($config->has('path.templates_cache')) {
         $options['cache'] = $config->get('path.templates_cache');
     } else {
         if ($config->has('path.storage')) {
             $options['cache'] = $config->get('path.storage') . '/twig';
         }
     }
     $env = new TwigEnvironment($dic->resolve('Twig_LoaderInterface'), $options);
     // merge core framework extensions with user extensions
     $extensions = array_merge(['Autarky\\TwigTemplating\\Extensions\\PartialExtension', 'Autarky\\TwigTemplating\\Extensions\\UrlGenerationExtension' => ['Autarky\\Routing\\UrlGenerator'], 'Autarky\\TwigTemplating\\Extensions\\SessionExtension' => ['Symfony\\Component\\HttpFoundation\\Session\\Session']], $this->app->getConfig()->get('twig.extensions', []));
     // iterate through the array of extensions. if the array key is an
     // integer, there are no dependencies defined for that extension and we
     // can simply add it. if the array key is a string, the key is the class
     // name of the extension and the value is an array of class dependencies
     // that must be bound to the service container in order for the
     // extension to be loaded.
     foreach ($extensions as $extension => $dependencies) {
         if (is_int($extension)) {
             $env->addExtension($dic->resolve($dependencies));
         } else {
             foreach ((array) $dependencies as $dependency) {
                 if (!$dic->isBound($dependency)) {
                     // break out of this inner foreach loop and continue to
                     // the next iteration of the outer foreach loop,
                     // effectively preventing the extension from loading
                     continue 2;
                 }
             }
             // if any of the dependencies are not met in the above loop,
             // this line of code will not be executed
             $env->addExtension($dic->resolve($extension));
         }
     }
     return $env;
 }