4 * This file is part of the Symfony package.
6 * (c) Fabien Potencier <fabien@symfony.com>
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
12 namespace Symfony\Component\DependencyInjection\Extension;
14 use Symfony\Component\DependencyInjection\ContainerBuilder;
16 interface PrependExtensionInterface
19 * Allow an extension to prepend the extension configurations.
21 * @param ContainerBuilder $container
23 public function prepend(ContainerBuilder $container);