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vendor/phpspec/prophecy/src/Prophecy/Doubler/ClassPatch/TraversablePatch.php 2.25 KB
ad2e91f7   Mihail   move multyparser ...
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  <?php
  
  /*
   * This file is part of the Prophecy.
   * (c) Konstantin Kudryashov <ever.zet@gmail.com>
   *     Marcello Duarte <marcello.duarte@gmail.com>
   *
   * For the full copyright and license information, please view the LICENSE
   * file that was distributed with this source code.
   */
  
  namespace Prophecy\Doubler\ClassPatch;
  
  use Prophecy\Doubler\Generator\Node\ClassNode;
  use Prophecy\Doubler\Generator\Node\MethodNode;
  
  /**
   * Traversable interface patch.
   * Forces classes that implement interfaces, that extend Traversable to also implement Iterator.
   *
   * @author Konstantin Kudryashov <ever.zet@gmail.com>
   */
  class TraversablePatch implements ClassPatchInterface
  {
      /**
       * Supports nodetree, that implement Traversable, but not Iterator or IteratorAggregate.
       *
       * @param ClassNode $node
       *
       * @return bool
       */
      public function supports(ClassNode $node)
      {
          if (in_array('Iterator', $node->getInterfaces())) {
              return false;
          }
          if (in_array('IteratorAggregate', $node->getInterfaces())) {
              return false;
          }
  
          foreach ($node->getInterfaces() as $interface) {
              if ('Traversable' !== $interface && !is_subclass_of($interface, 'Traversable')) {
                  continue;
              }
              if ('Iterator' === $interface || is_subclass_of($interface, 'Iterator')) {
                  continue;
              }
              if ('IteratorAggregate' === $interface || is_subclass_of($interface, 'IteratorAggregate')) {
                  continue;
              }
  
              return true;
          }
  
          return false;
      }
  
      /**
       * Forces class to implement Iterator interface.
       *
       * @param ClassNode $node
       */
      public function apply(ClassNode $node)
      {
          $node->addInterface('Iterator');
  
          $node->addMethod(new MethodNode('current'));
          $node->addMethod(new MethodNode('key'));
          $node->addMethod(new MethodNode('next'));
          $node->addMethod(new MethodNode('rewind'));
          $node->addMethod(new MethodNode('valid'));
      }
  
      /**
       * Returns patch priority, which determines when patch will be applied.
       *
       * @return int Priority number (higher - earlier)
       */
      public function getPriority()
      {
          return 100;
      }
  }