symfony/src/Symfony/Bundle/TwigBundle/TwigBundle.php

<?php

namespace Symfony\Bundle\TwigBundle;

use Symfony\Framework\Bundle\Bundle;
use Symfony\Components\DependencyInjection\ParameterBag\ParameterBagInterface;
use Symfony\Components\DependencyInjection\ContainerBuilder;
use Symfony\Bundle\TwigBundle\DependencyInjection\TwigExtension;

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * Bundle.
 *
 * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
 */
class TwigBundle extends Bundle
{
    /**
     * Customizes the Container instance.
     *
     * @param ParameterBagInterface $parameterBag A ParameterBagInterface instance
     *
     * @return ContainerBuilder A ContainerBuilder instance
     */
    public function buildContainer(ParameterBagInterface $parameterBag)
    {
        ContainerBuilder::registerExtension(new TwigExtension());
    }
}