1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

     6  * (c) Fabien Potencier <fabien@symfony.com>

     7  *

     8  * For the full copyright and license information, please view the LICENSE

     9  * file that was distributed with this source code.

    10  */

    11 

    12 namespace Symfony\Component\DependencyInjection\Compiler;

    13 

    14 use Symfony\Component\DependencyInjection\ContainerBuilder;

    15 

    16 /**

    17  * Merges extension configs into the container builder

    18  *

    19  * @author Fabien Potencier <fabien@symfony.com>

    20  */

    21 class MergeExtensionConfigurationPass implements CompilerPassInterface

    22 {

    23     /**

    24      * {@inheritDoc}

    25      */

    26     public function process(ContainerBuilder $container)

    27     {

    28         $parameters = $container->getParameterBag()->all();

    29         $definitions = $container->getDefinitions();

    30         $aliases = $container->getAliases();

    31 

    32         foreach ($container->getExtensions() as $name => $extension) {

    33             if (!$config = $container->getExtensionConfig($name)) {

    34                 // this extension was not called

    35                 continue;

    36             }

    37             $config = $container->getParameterBag()->resolveValue($config);

    38 

    39             $tmpContainer = new ContainerBuilder($container->getParameterBag());

    40             $tmpContainer->addObjectResource($extension);

    41 

    42             $extension->load($config, $tmpContainer);

    43 

    44             $container->merge($tmpContainer);

    45         }

    46 

    47         $container->addDefinitions($definitions);

    48         $container->addAliases($aliases);

    49         $container->getParameterBag()->add($parameters);

    50     }

    51 }