<?php

namespace Symfony\Components\DependencyInjection\Loader;

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

/**
 * Loader is the abstract class used by all built-in loaders.
 *
 * @package    symfony
 * @subpackage dependency_injection
 * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
 */
abstract class Loader implements LoaderInterface
{
  static protected $extensions = array();

  static public function registerExtension(LoaderExtensionInterface $extension)
  {
    static::$extensions[$extension->getNamespace()] = $extension;
  }

  static public function getExtension($name)
  {
    return isset(static::$extensions[$name]) ? static::$extensions[$name] : null;
  }
}