Symfony\Component\DependencyInjection\ContainerBuilder::addObjectResource PHP Method

    public function addObjectResource($object)
    {
        if ($this->trackResources) {
            $this->addClassResource(new \ReflectionClass($object));
        }

        return $this;
    }

 /**
  * {@inheritDoc}
  */
 public function load(array $configs, ContainerBuilder $container)
 {
     $extensionManager = new ExtensionManager();
     foreach ($configs as $config) {
         if (!isset($config['extensions'])) {
             continue;
         }
         foreach ($config['extensions'] as $config) {
             if (!isset($config['class'])) {
                 continue;
             }
             $extensionManager->activateExtension($config['class']);
         }
     }
     $configuration = new Configuration($extensionManager->getActivatedExtensions());
     $config = $this->processConfiguration($configuration, $configs);
     $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__ . '/../../../resources'));
     $loader->load('services.xml');
     foreach ($extensionManager->getActivatedExtensions() as $extension) {
         $extensionConfig = $config['extensions'][$extension->getName()];
         $tempContainer = new ContainerBuilder(new ParameterBag(array()));
         $tempContainer->addObjectResource($extension);
         // load extension into temporary container
         $extension->load($extensionConfig, $tempContainer);
         // merge temporary container into normal one
         $container->merge($tempContainer);
     }
     $settings = $this->createSettings($config);
     $configurationDefinition = $container->findDefinition('pdepend.configuration');
     $configurationDefinition->setArguments(array($settings));
 }