<?php

/*
 * This file is part of the Symfony framework.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Symfony\Component\HttpKernel\DependencyInjection;

use Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationPass as BaseMergeExtensionConfigurationPass;
use Symfony\Component\DependencyInjection\ContainerBuilder;

/**
 * Ensures certain extensions are always loaded.
 *
 * @author Kris Wallsmith <kris@symfony.com>
 */
class MergeExtensionConfigurationPass extends BaseMergeExtensionConfigurationPass
{
    private $extensions;

    public function __construct(array $extensions)
    {
        $this->extensions = $extensions;
    }

    public function process(ContainerBuilder $container)
    {
        foreach ($this->extensions as $extension) {
            if (!count($container->getExtensionConfig($extension))) {
                $container->loadFromExtension($extension, array());
            }
        }

        parent::process($container);
    }
}