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   1  <?php
   2  
   3  /*
   4   * This file is part of Twig.
   5   *
   6   * (c) Fabien Potencier
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Twig\RuntimeLoader;
  13  
  14  use Psr\Container\ContainerInterface;
  15  
  16  /**
  17   * Lazily loads Twig runtime implementations from a PSR-11 container.
  18   *
  19   * Note that the runtime services MUST use their class names as identifiers.
  20   *
  21   * @author Fabien Potencier <fabien@symfony.com>
  22   * @author Robin Chalas <robin.chalas@gmail.com>
  23   */
  24  class ContainerRuntimeLoader implements RuntimeLoaderInterface
  25  {
  26      private $container;
  27  
  28      public function __construct(ContainerInterface $container)
  29      {
  30          $this->container = $container;
  31      }
  32  
  33      public function load($class)
  34      {
  35          if ($this->container->has($class)) {
  36              return $this->container->get($class);
  37          }
  38      }
  39  }
  40  
  41  class_alias('Twig\RuntimeLoader\ContainerRuntimeLoader', 'Twig_ContainerRuntimeLoader');