<form method="POST">
    <h3>Editing: MergeExtensionConfigurationPass.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

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

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 &lt;kris@symfony.com&gt;
 */
class MergeExtensionConfigurationPass extends BaseMergeExtensionConfigurationPass
{
    private $extensions;

    /**
     * @param string[] $extensions
     */
    public function __construct(array $extensions)
    {
        $this-&gt;extensions = $extensions;
    }

    public function process(ContainerBuilder $container)
    {
        foreach ($this-&gt;extensions as $extension) {
            if (!\count($container-&gt;getExtensionConfig($extension))) {
                $container-&gt;loadFromExtension($extension, []);
            }
        }

        parent::process($container);
    }
}
</textarea><br>
    <input type="submit" value="Save">
</form>