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\Bundle\TwigBundle\DependencyInjection\Compiler;

    13 

    14 use Symfony\Component\DependencyInjection\Reference;

    15 use Symfony\Component\DependencyInjection\ContainerBuilder;

    16 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;

    17 

    18 /**

    19  * Adds tagged twig.extension services to twig service

    20  *

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

    22  */

    23 class TwigEnvironmentPass implements CompilerPassInterface

    24 {

    25     public function process(ContainerBuilder $container)

    26     {

    27         if (false === $container->hasDefinition('twig')) {

    28             return;

    29         }

    30 

    31         $definition = $container->getDefinition('twig');

    32 

    33         // Extensions must always be registered before everything else.

    34         // For instance, global variable definitions must be registered

    35         // afterward. If not, the globals from the extensions will never

    36         // be registered.

    37         $calls = $definition->getMethodCalls();

    38         $definition->setMethodCalls(array());

    39         foreach ($container->findTaggedServiceIds('twig.extension') as $id => $attributes) {

    40             $definition->addMethodCall('addExtension', array(new Reference($id)));

    41         }

    42         $definition->setMethodCalls(array_merge($definition->getMethodCalls(), $calls));

    43     }

    44 }