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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\HttpKernel\Controller;
  13  
  14  use Symfony\Component\HttpFoundation\Request;
  15  use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
  16  
  17  /**
  18   * Responsible for resolving the value of an argument based on its metadata.
  19   *
  20   * @author Iltar van der Berg <kjarli@gmail.com>
  21   */
  22  interface ArgumentValueResolverInterface
  23  {
  24      /**
  25       * Whether this resolver can resolve the value for the given ArgumentMetadata.
  26       *
  27       * @return bool
  28       */
  29      public function supports(Request $request, ArgumentMetadata $argument);
  30  
  31      /**
  32       * Returns the possible value(s).
  33       *
  34       * @return \Generator
  35       */
  36      public function resolve(Request $request, ArgumentMetadata $argument);
  37  }