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admin/phpMyAdmin/vendor/symfony/cache/Adapter/NullAdapter.php

@@ -0,0 +1,156 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Contracts\Cache\CacheInterface;
+
+/**
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ */
+class NullAdapter implements AdapterInterface, CacheInterface
+{
+    private $createCacheItem;
+
+    public function __construct()
+    {
+        $this->createCacheItem = \Closure::bind(
+            function ($key) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->isHit = false;
+
+                return $item;
+            },
+            $this,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get(string $key, callable $callback, float $beta = null, array &$metadata = null)
+    {
+        $save = true;
+
+        return $callback(($this->createCacheItem)($key), $save);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $f = $this->createCacheItem;
+
+        return $f($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        return $this->generateItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function hasItem($key)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param string $prefix
+     *
+     * @return bool
+     */
+    public function clear(/*string $prefix = ''*/)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function deleteItem($key)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function deleteItems(array $keys)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function save(CacheItemInterface $item)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function commit()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete(string $key): bool
+    {
+        return $this->deleteItem($key);
+    }
+
+    private function generateItems(array $keys)
+    {
+        $f = $this->createCacheItem;
+
+        foreach ($keys as $key) {
+            yield $key => $f($key);
+        }
+    }
+}