* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\DependencyInjection\Compiler; use Symfony\Component\DependencyInjection\ContainerBuilder; use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface; /** * Merges extension configs into the container builder * * @author Fabien Potencier */ class MergeExtensionConfigurationPass implements CompilerPassInterface { /** * {@inheritDoc} */ public function process(ContainerBuilder $container) { $parameters = $container->getParameterBag()->all(); $definitions = $container->getDefinitions(); $aliases = $container->getAliases(); foreach ($container->getExtensions() as $extension) { if ($extension instanceof PrependExtensionInterface) { $extension->prepend($container); } } foreach ($container->getExtensions() as $name => $extension) { if (!$config = $container->getExtensionConfig($name)) { // this extension was not called continue; } $config = $container->getParameterBag()->resolveValue($config); $tmpContainer = new ContainerBuilder($container->getParameterBag()); $tmpContainer->setResourceTracking($container->isTrackingResources()); $tmpContainer->addObjectResource($extension); $extension->load($config, $tmpContainer); $container->merge($tmpContainer); } $container->addDefinitions($definitions); $container->addAliases($aliases); $container->getParameterBag()->add($parameters); } }