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/vendor/symfony/http-foundation/Session/ -> SessionBagProxy.php (source)

   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\HttpFoundation\Session;
  13  
  14  /**
  15   * @author Nicolas Grekas <p@tchwork.com>
  16   *
  17   * @internal
  18   */
  19  final class SessionBagProxy implements SessionBagInterface
  20  {
  21      private $bag;
  22      private $data;
  23      private $usageIndex;
  24  
  25      public function __construct(SessionBagInterface $bag, array &$data, &$usageIndex)
  26      {
  27          $this->bag = $bag;
  28          $this->data = &$data;
  29          $this->usageIndex = &$usageIndex;
  30      }
  31  
  32      /**
  33       * @return SessionBagInterface
  34       */
  35      public function getBag()
  36      {
  37          ++$this->usageIndex;
  38  
  39          return $this->bag;
  40      }
  41  
  42      /**
  43       * @return bool
  44       */
  45      public function isEmpty()
  46      {
  47          if (!isset($this->data[$this->bag->getStorageKey()])) {
  48              return true;
  49          }
  50          ++$this->usageIndex;
  51  
  52          return empty($this->data[$this->bag->getStorageKey()]);
  53      }
  54  
  55      /**
  56       * {@inheritdoc}
  57       */
  58      public function getName()
  59      {
  60          return $this->bag->getName();
  61      }
  62  
  63      /**
  64       * {@inheritdoc}
  65       */
  66      public function initialize(array &$array)
  67      {
  68          ++$this->usageIndex;
  69          $this->data[$this->bag->getStorageKey()] = &$array;
  70  
  71          $this->bag->initialize($array);
  72      }
  73  
  74      /**
  75       * {@inheritdoc}
  76       */
  77      public function getStorageKey()
  78      {
  79          return $this->bag->getStorageKey();
  80      }
  81  
  82      /**
  83       * {@inheritdoc}
  84       */
  85      public function clear()
  86      {
  87          return $this->bag->clear();
  88      }
  89  }


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