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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   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 Symfony\Component\DependencyInjection\Compiler;
  13  
  14  use Symfony\Component\DependencyInjection\ContainerInterface;
  15  use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
  16  use Symfony\Component\DependencyInjection\Reference;
  17  
  18  /**
  19   * Checks that all references are pointing to a valid service.
  20   *
  21   * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  22   */
  23  class CheckExceptionOnInvalidReferenceBehaviorPass extends AbstractRecursivePass
  24  {
  25      protected function processValue($value, $isRoot = false)
  26      {
  27          if (!$value instanceof Reference) {
  28              return parent::processValue($value, $isRoot);
  29          }
  30          if (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE === $value->getInvalidBehavior() && !$this->container->has($id = (string) $value)) {
  31              throw new ServiceNotFoundException($id, $this->currentId);
  32          }
  33  
  34          return $value;
  35      }
  36  }