Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\DependencyInjection\Compiler;
Chris@0: 
Chris@0: use Symfony\Component\DependencyInjection\ContainerBuilder;
Chris@0: use Symfony\Component\DependencyInjection\Extension\ConfigurationExtensionInterface;
Chris@0: use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Merges extension configs into the container builder.
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  */
Chris@0: class MergeExtensionConfigurationPass implements CompilerPassInterface
Chris@0: {
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function process(ContainerBuilder $container)
Chris@0:     {
Chris@0:         $parameters = $container->getParameterBag()->all();
Chris@0:         $definitions = $container->getDefinitions();
Chris@0:         $aliases = $container->getAliases();
Chris@0:         $exprLangProviders = $container->getExpressionLanguageProviders();
Chris@0: 
Chris@0:         foreach ($container->getExtensions() as $extension) {
Chris@0:             if ($extension instanceof PrependExtensionInterface) {
Chris@0:                 $extension->prepend($container);
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         foreach ($container->getExtensions() as $name => $extension) {
Chris@0:             if (!$config = $container->getExtensionConfig($name)) {
Chris@0:                 // this extension was not called
Chris@0:                 continue;
Chris@0:             }
Chris@0:             $config = $container->getParameterBag()->resolveValue($config);
Chris@0: 
Chris@0:             $tmpContainer = new ContainerBuilder($container->getParameterBag());
Chris@0:             $tmpContainer->setResourceTracking($container->isTrackingResources());
Chris@0:             $tmpContainer->addObjectResource($extension);
Chris@0:             if ($extension instanceof ConfigurationExtensionInterface && null !== $configuration = $extension->getConfiguration($config, $tmpContainer)) {
Chris@0:                 $tmpContainer->addObjectResource($configuration);
Chris@0:             }
Chris@0: 
Chris@0:             foreach ($exprLangProviders as $provider) {
Chris@0:                 $tmpContainer->addExpressionLanguageProvider($provider);
Chris@0:             }
Chris@0: 
Chris@0:             $extension->load($config, $tmpContainer);
Chris@0: 
Chris@0:             $container->merge($tmpContainer);
Chris@0:             $container->getParameterBag()->add($parameters);
Chris@0:         }
Chris@0: 
Chris@0:         $container->addDefinitions($definitions);
Chris@0:         $container->addAliases($aliases);
Chris@0:     }
Chris@0: }