340 lines
		
	
	
		
			9.4 KiB
		
	
	
	
		
			PHP
		
	
	
			
		
		
	
	
			340 lines
		
	
	
		
			9.4 KiB
		
	
	
	
		
			PHP
		
	
	
| <?php
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| 
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| /*
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|  * This file is part of the Symfony package.
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|  *
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|  * (c) Fabien Potencier <fabien@symfony.com>
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|  *
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|  * For the full copyright and license information, please view the LICENSE
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|  * file that was distributed with this source code.
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|  */
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| 
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| namespace Symfony\Component\Cache\Adapter;
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| 
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| use Psr\Cache\CacheItemInterface;
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| use Psr\Cache\CacheItemPoolInterface;
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| use Symfony\Component\Cache\CacheItem;
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| use Symfony\Component\Cache\Exception\InvalidArgumentException;
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| use Symfony\Component\Cache\PruneableInterface;
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| use Symfony\Component\Cache\ResettableInterface;
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| use Symfony\Component\Cache\Traits\ContractsTrait;
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| use Symfony\Component\Cache\Traits\PhpArrayTrait;
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| use Symfony\Contracts\Cache\CacheInterface;
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| 
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| /**
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|  * Caches items at warm up time using a PHP array that is stored in shared memory by OPCache since PHP 7.0.
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|  * Warmed up items are read-only and run-time discovered items are cached using a fallback adapter.
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|  *
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|  * @author Titouan Galopin <galopintitouan@gmail.com>
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|  * @author Nicolas Grekas <p@tchwork.com>
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|  */
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| class PhpArrayAdapter implements AdapterInterface, CacheInterface, PruneableInterface, ResettableInterface
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| {
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|     use ContractsTrait;
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|     use PhpArrayTrait;
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| 
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|     private $createCacheItem;
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| 
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|     /**
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|      * @param string           $file         The PHP file were values are cached
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|      * @param AdapterInterface $fallbackPool A pool to fallback on when an item is not hit
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|      */
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|     public function __construct(string $file, AdapterInterface $fallbackPool)
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|     {
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|         $this->file = $file;
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|         $this->pool = $fallbackPool;
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|         $this->createCacheItem = \Closure::bind(
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|             static function ($key, $value, $isHit) {
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|                 $item = new CacheItem();
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|                 $item->key = $key;
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|                 $item->value = $value;
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|                 $item->isHit = $isHit;
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| 
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|                 return $item;
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|             },
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|             null,
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|             CacheItem::class
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|         );
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|     }
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| 
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|     /**
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|      * This adapter takes advantage of how PHP stores arrays in its latest versions.
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|      *
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|      * @param string                 $file         The PHP file were values are cached
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|      * @param CacheItemPoolInterface $fallbackPool A pool to fallback on when an item is not hit
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|      *
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|      * @return CacheItemPoolInterface
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|      */
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|     public static function create($file, CacheItemPoolInterface $fallbackPool)
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|     {
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|         if (!$fallbackPool instanceof AdapterInterface) {
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|             $fallbackPool = new ProxyAdapter($fallbackPool);
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|         }
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| 
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|         return new static($file, $fallbackPool);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function get(string $key, callable $callback, float $beta = null, array &$metadata = null)
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|     {
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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|         if (!isset($this->keys[$key])) {
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|             get_from_pool:
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|             if ($this->pool instanceof CacheInterface) {
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|                 return $this->pool->get($key, $callback, $beta, $metadata);
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|             }
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| 
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|             return $this->doGet($this->pool, $key, $callback, $beta, $metadata);
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|         }
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|         $value = $this->values[$this->keys[$key]];
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| 
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|         if ('N;' === $value) {
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|             return null;
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|         }
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|         try {
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|             if ($value instanceof \Closure) {
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|                 return $value();
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|             }
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|         } catch (\Throwable $e) {
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|             unset($this->keys[$key]);
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|             goto get_from_pool;
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|         }
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| 
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|         return $value;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function getItem($key)
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|     {
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|         if (!\is_string($key)) {
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|             throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
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|         }
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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|         if (!isset($this->keys[$key])) {
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|             return $this->pool->getItem($key);
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|         }
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| 
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|         $value = $this->values[$this->keys[$key]];
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|         $isHit = true;
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| 
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|         if ('N;' === $value) {
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|             $value = null;
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|         } elseif ($value instanceof \Closure) {
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|             try {
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|                 $value = $value();
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|             } catch (\Throwable $e) {
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|                 $value = null;
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|                 $isHit = false;
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|             }
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|         }
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| 
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|         $f = $this->createCacheItem;
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| 
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|         return $f($key, $value, $isHit);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function getItems(array $keys = [])
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|     {
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|         foreach ($keys as $key) {
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|             if (!\is_string($key)) {
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|                 throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
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|             }
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|         }
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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| 
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|         return $this->generateItems($keys);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      *
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|      * @return bool
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|      */
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|     public function hasItem($key)
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|     {
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|         if (!\is_string($key)) {
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|             throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
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|         }
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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| 
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|         return isset($this->keys[$key]) || $this->pool->hasItem($key);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      *
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|      * @return bool
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|      */
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|     public function deleteItem($key)
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|     {
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|         if (!\is_string($key)) {
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|             throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
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|         }
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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| 
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|         return !isset($this->keys[$key]) && $this->pool->deleteItem($key);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      *
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|      * @return bool
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|      */
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|     public function deleteItems(array $keys)
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|     {
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|         $deleted = true;
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|         $fallbackKeys = [];
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| 
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|         foreach ($keys as $key) {
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|             if (!\is_string($key)) {
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|                 throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
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|             }
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| 
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|             if (isset($this->keys[$key])) {
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|                 $deleted = false;
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|             } else {
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|                 $fallbackKeys[] = $key;
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|             }
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|         }
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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| 
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|         if ($fallbackKeys) {
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|             $deleted = $this->pool->deleteItems($fallbackKeys) && $deleted;
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|         }
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| 
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|         return $deleted;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      *
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|      * @return bool
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|      */
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|     public function save(CacheItemInterface $item)
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|     {
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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| 
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|         return !isset($this->keys[$item->getKey()]) && $this->pool->save($item);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      *
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|      * @return bool
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|      */
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|     public function saveDeferred(CacheItemInterface $item)
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|     {
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|         if (null === $this->values) {
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|             $this->initialize();
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|         }
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| 
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|         return !isset($this->keys[$item->getKey()]) && $this->pool->saveDeferred($item);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      *
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|      * @return bool
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|      */
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|     public function commit()
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|     {
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|         return $this->pool->commit();
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|     }
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| 
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|     private function generateItems(array $keys): \Generator
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|     {
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|         $f = $this->createCacheItem;
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|         $fallbackKeys = [];
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| 
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|         foreach ($keys as $key) {
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|             if (isset($this->keys[$key])) {
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|                 $value = $this->values[$this->keys[$key]];
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| 
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|                 if ('N;' === $value) {
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|                     yield $key => $f($key, null, true);
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|                 } elseif ($value instanceof \Closure) {
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|                     try {
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|                         yield $key => $f($key, $value(), true);
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|                     } catch (\Throwable $e) {
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|                         yield $key => $f($key, null, false);
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|                     }
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|                 } else {
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|                     yield $key => $f($key, $value, true);
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|                 }
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|             } else {
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|                 $fallbackKeys[] = $key;
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|             }
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|         }
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| 
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|         if ($fallbackKeys) {
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|             yield from $this->pool->getItems($fallbackKeys);
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|         }
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|     }
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| 
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|     /**
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|      * @throws \ReflectionException When $class is not found and is required
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|      *
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|      * @internal to be removed in Symfony 5.0
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|      */
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|     public static function throwOnRequiredClass($class)
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|     {
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|         $e = new \ReflectionException("Class $class does not exist");
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|         $trace = debug_backtrace();
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|         $autoloadFrame = [
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|             'function' => 'spl_autoload_call',
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|             'args' => [$class],
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|         ];
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| 
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|         if (\PHP_VERSION_ID >= 80000 && isset($trace[1])) {
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|             $callerFrame = $trace[1];
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|         } elseif (false !== $i = array_search($autoloadFrame, $trace, true)) {
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|             $callerFrame = $trace[++$i];
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|         } else {
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|             throw $e;
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|         }
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| 
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|         if (isset($callerFrame['function']) && !isset($callerFrame['class'])) {
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|             switch ($callerFrame['function']) {
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|                 case 'get_class_methods':
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|                 case 'get_class_vars':
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|                 case 'get_parent_class':
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|                 case 'is_a':
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|                 case 'is_subclass_of':
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|                 case 'class_exists':
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|                 case 'class_implements':
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|                 case 'class_parents':
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|                 case 'trait_exists':
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|                 case 'defined':
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|                 case 'interface_exists':
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|                 case 'method_exists':
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|                 case 'property_exists':
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|                 case 'is_callable':
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|                     return;
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|             }
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|         }
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| 
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|         throw $e;
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|     }
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| }
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