Chris@14: <?php
Chris@14: 
Chris@14: /*
Chris@14:  * This file is part of the Symfony package.
Chris@14:  *
Chris@14:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@14:  *
Chris@14:  * For the full copyright and license information, please view the LICENSE
Chris@14:  * file that was distributed with this source code.
Chris@14:  */
Chris@14: 
Chris@14: namespace Symfony\Component\HttpFoundation\Session;
Chris@14: 
Chris@14: /**
Chris@14:  * @author Nicolas Grekas <p@tchwork.com>
Chris@14:  *
Chris@14:  * @internal
Chris@14:  */
Chris@14: final class SessionBagProxy implements SessionBagInterface
Chris@14: {
Chris@14:     private $bag;
Chris@14:     private $data;
Chris@16:     private $usageIndex;
Chris@14: 
Chris@16:     public function __construct(SessionBagInterface $bag, array &$data, &$usageIndex)
Chris@14:     {
Chris@14:         $this->bag = $bag;
Chris@14:         $this->data = &$data;
Chris@16:         $this->usageIndex = &$usageIndex;
Chris@14:     }
Chris@14: 
Chris@14:     /**
Chris@14:      * @return SessionBagInterface
Chris@14:      */
Chris@14:     public function getBag()
Chris@14:     {
Chris@16:         ++$this->usageIndex;
Chris@16: 
Chris@14:         return $this->bag;
Chris@14:     }
Chris@14: 
Chris@14:     /**
Chris@14:      * @return bool
Chris@14:      */
Chris@14:     public function isEmpty()
Chris@14:     {
Chris@17:         if (!isset($this->data[$this->bag->getStorageKey()])) {
Chris@17:             return true;
Chris@17:         }
Chris@16:         ++$this->usageIndex;
Chris@16: 
Chris@14:         return empty($this->data[$this->bag->getStorageKey()]);
Chris@14:     }
Chris@14: 
Chris@14:     /**
Chris@14:      * {@inheritdoc}
Chris@14:      */
Chris@14:     public function getName()
Chris@14:     {
Chris@14:         return $this->bag->getName();
Chris@14:     }
Chris@14: 
Chris@14:     /**
Chris@14:      * {@inheritdoc}
Chris@14:      */
Chris@14:     public function initialize(array &$array)
Chris@14:     {
Chris@16:         ++$this->usageIndex;
Chris@14:         $this->data[$this->bag->getStorageKey()] = &$array;
Chris@14: 
Chris@14:         $this->bag->initialize($array);
Chris@14:     }
Chris@14: 
Chris@14:     /**
Chris@14:      * {@inheritdoc}
Chris@14:      */
Chris@14:     public function getStorageKey()
Chris@14:     {
Chris@14:         return $this->bag->getStorageKey();
Chris@14:     }
Chris@14: 
Chris@14:     /**
Chris@14:      * {@inheritdoc}
Chris@14:      */
Chris@14:     public function clear()
Chris@14:     {
Chris@14:         return $this->bag->clear();
Chris@14:     }
Chris@14: }