--- /dev/null
+<?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\Validator\Mapping\Cache;
+
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Validator\Mapping\ClassMetadata;
+
+/**
+ * PSR-6 adapter.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class Psr6Cache implements CacheInterface
+{
+ /**
+ * @var CacheItemPoolInterface
+ */
+ private $cacheItemPool;
+
+ public function __construct(CacheItemPoolInterface $cacheItemPool)
+ {
+ $this->cacheItemPool = $cacheItemPool;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function has($class)
+ {
+ return $this->cacheItemPool->hasItem($this->escapeClassName($class));
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function read($class)
+ {
+ $item = $this->cacheItemPool->getItem($this->escapeClassName($class));
+
+ if (!$item->isHit()) {
+ return false;
+ }
+
+ return $item->get();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function write(ClassMetadata $metadata)
+ {
+ $item = $this->cacheItemPool->getItem($this->escapeClassName($metadata->getClassName()));
+ $item->set($metadata);
+
+ $this->cacheItemPool->save($item);
+ }
+
+ /**
+ * Replaces backslashes by dots in a class name.
+ *
+ * @param string $class
+ *
+ * @return string
+ */
+ private function escapeClassName($class)
+ {
+ return str_replace('\\', '.', $class);
+ }
+}