Initial commit

core/vendor/symfony/cache/.gitignore

@@ -0,0 +1,3 @@
+composer.lock
+phpunit.xml
+vendor/

core/vendor/symfony/cache/Adapter/AbstractAdapter.php

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+<?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 Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\AbstractTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+abstract class AbstractAdapter implements AdapterInterface, LoggerAwareInterface, ResettableInterface
+{
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = ':';
+
+    use AbstractTrait;
+
+    private static $apcuSupported;
+    private static $phpFilesSupported;
+
+    private $createCacheItem;
+    private $mergeByLifetime;
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     */
+    protected function __construct($namespace = '', $defaultLifetime = 0)
+    {
+        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).static::NS_SEPARATOR;
+        if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
+            throw new InvalidArgumentException(sprintf('Namespace must be %d chars max, %d given ("%s")', $this->maxIdLength - 24, \strlen($namespace), $namespace));
+        }
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $value, $isHit) use ($defaultLifetime) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+                $item->defaultLifetime = $defaultLifetime;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $getId = function ($key) { return $this->getId((string) $key); };
+        $this->mergeByLifetime = \Closure::bind(
+            static function ($deferred, $namespace, &$expiredIds) use ($getId) {
+                $byLifetime = [];
+                $now = time();
+                $expiredIds = [];
+
+                foreach ($deferred as $key => $item) {
+                    if (null === $item->expiry) {
+                        $byLifetime[0 < $item->defaultLifetime ? $item->defaultLifetime : 0][$getId($key)] = $item->value;
+                    } elseif ($item->expiry > $now) {
+                        $byLifetime[$item->expiry - $now][$getId($key)] = $item->value;
+                    } else {
+                        $expiredIds[] = $getId($key);
+                    }
+                }
+
+                return $byLifetime;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     * @param string $version
+     * @param string $directory
+     *
+     * @return AdapterInterface
+     */
+    public static function createSystemCache($namespace, $defaultLifetime, $version, $directory, LoggerInterface $logger = null)
+    {
+        if (null === self::$apcuSupported) {
+            self::$apcuSupported = ApcuAdapter::isSupported();
+        }
+
+        if (!self::$apcuSupported && null === self::$phpFilesSupported) {
+            self::$phpFilesSupported = PhpFilesAdapter::isSupported();
+        }
+
+        if (self::$phpFilesSupported) {
+            $opcache = new PhpFilesAdapter($namespace, $defaultLifetime, $directory);
+            if (null !== $logger) {
+                $opcache->setLogger($logger);
+            }
+
+            return $opcache;
+        }
+
+        $fs = new FilesystemAdapter($namespace, $defaultLifetime, $directory);
+        if (null !== $logger) {
+            $fs->setLogger($logger);
+        }
+        if (!self::$apcuSupported) {
+            return $fs;
+        }
+
+        $apcu = new ApcuAdapter($namespace, (int) $defaultLifetime / 5, $version);
+        if ('cli' === \PHP_SAPI && !filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN)) {
+            $apcu->setLogger(new NullLogger());
+        } elseif (null !== $logger) {
+            $apcu->setLogger($logger);
+        }
+
+        return new ChainAdapter([$apcu, $fs]);
+    }
+
+    public static function createConnection($dsn, array $options = [])
+    {
+        if (!\is_string($dsn)) {
+            throw new InvalidArgumentException(sprintf('The %s() method expect argument #1 to be string, %s given.', __METHOD__, \gettype($dsn)));
+        }
+        if (0 === strpos($dsn, 'redis://')) {
+            return RedisAdapter::createConnection($dsn, $options);
+        }
+        if (0 === strpos($dsn, 'memcached://')) {
+            return MemcachedAdapter::createConnection($dsn, $options);
+        }
+
+        throw new InvalidArgumentException(sprintf('Unsupported DSN: %s.', $dsn));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $id = $this->getId($key);
+
+        $f = $this->createCacheItem;
+        $isHit = false;
+        $value = null;
+
+        try {
+            foreach ($this->doFetch([$id]) as $value) {
+                $isHit = true;
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch key "{key}"', ['key' => $key, 'exception' => $e]);
+        }
+
+        return $f($key, $value, $isHit);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $ids = [];
+
+        foreach ($keys as $key) {
+            $ids[] = $this->getId($key);
+        }
+        try {
+            $items = $this->doFetch($ids);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch requested items', ['keys' => $keys, 'exception' => $e]);
+            $items = [];
+        }
+        $ids = array_combine($ids, $keys);
+
+        return $this->generateItems($items, $ids);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return $this->commit();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        $ok = true;
+        $byLifetime = $this->mergeByLifetime;
+        $byLifetime = $byLifetime($this->deferred, $this->namespace, $expiredIds);
+        $retry = $this->deferred = [];
+
+        if ($expiredIds) {
+            $this->doDelete($expiredIds);
+        }
+        foreach ($byLifetime as $lifetime => $values) {
+            try {
+                $e = $this->doSave($values, $lifetime);
+            } catch (\Exception $e) {
+            }
+            if (true === $e || [] === $e) {
+                continue;
+            }
+            if (\is_array($e) || 1 === \count($values)) {
+                foreach (\is_array($e) ? $e : array_keys($values) as $id) {
+                    $ok = false;
+                    $v = $values[$id];
+                    $type = \is_object($v) ? \get_class($v) : \gettype($v);
+                    CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', ['key' => substr($id, \strlen($this->namespace)), 'type' => $type, 'exception' => $e instanceof \Exception ? $e : null]);
+                }
+            } else {
+                foreach ($values as $id => $v) {
+                    $retry[$lifetime][] = $id;
+                }
+            }
+        }
+
+        // When bulk-save failed, retry each item individually
+        foreach ($retry as $lifetime => $ids) {
+            foreach ($ids as $id) {
+                try {
+                    $v = $byLifetime[$lifetime][$id];
+                    $e = $this->doSave([$id => $v], $lifetime);
+                } catch (\Exception $e) {
+                }
+                if (true === $e || [] === $e) {
+                    continue;
+                }
+                $ok = false;
+                $type = \is_object($v) ? \get_class($v) : \gettype($v);
+                CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', ['key' => substr($id, \strlen($this->namespace)), 'type' => $type, 'exception' => $e instanceof \Exception ? $e : null]);
+            }
+        }
+
+        return $ok;
+    }
+
+    public function __sleep()
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+    }
+
+    private function generateItems($items, &$keys)
+    {
+        $f = $this->createCacheItem;
+
+        try {
+            foreach ($items as $id => $value) {
+                if (!isset($keys[$id])) {
+                    $id = key($keys);
+                }
+                $key = $keys[$id];
+                unset($keys[$id]);
+                yield $key => $f($key, $value, true);
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch requested items', ['keys' => array_values($keys), 'exception' => $e]);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $f($key, null, false);
+        }
+    }
+}

core/vendor/symfony/cache/Adapter/AdapterInterface.php

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+<?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\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * Interface for adapters managing instances of Symfony's CacheItem.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+interface AdapterInterface extends CacheItemPoolInterface
+{
+    /**
+     * {@inheritdoc}
+     *
+     * @return CacheItem
+     */
+    public function getItem($key);
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Traversable|CacheItem[]
+     */
+    public function getItems(array $keys = []);
+}

core/vendor/symfony/cache/Adapter/ApcuAdapter.php

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+<?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 Symfony\Component\Cache\Traits\ApcuTrait;
+
+class ApcuAdapter extends AbstractAdapter
+{
+    use ApcuTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $version
+     *
+     * @throws CacheException if APCu is not enabled
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $version = null)
+    {
+        $this->init($namespace, $defaultLifetime, $version);
+    }
+}

core/vendor/symfony/cache/Adapter/ArrayAdapter.php

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+<?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 Psr\Log\LoggerAwareInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ArrayTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ArrayAdapter implements AdapterInterface, LoggerAwareInterface, ResettableInterface
+{
+    use ArrayTrait;
+
+    private $createCacheItem;
+
+    /**
+     * @param int  $defaultLifetime
+     * @param bool $storeSerialized Disabling serialization can lead to cache corruptions when storing mutable values but increases performance otherwise
+     */
+    public function __construct($defaultLifetime = 0, $storeSerialized = true)
+    {
+        $this->storeSerialized = $storeSerialized;
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $value, $isHit) use ($defaultLifetime) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+                $item->defaultLifetime = $defaultLifetime;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $isHit = $this->hasItem($key);
+        try {
+            if (!$isHit) {
+                $this->values[$key] = $value = null;
+            } elseif (!$this->storeSerialized) {
+                $value = $this->values[$key];
+            } elseif ('b:0;' === $value = $this->values[$key]) {
+                $value = false;
+            } elseif (false === $value = unserialize($value)) {
+                $this->values[$key] = $value = null;
+                $isHit = false;
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to unserialize key "{key}"', ['key' => $key, 'exception' => $e]);
+            $this->values[$key] = $value = null;
+            $isHit = false;
+        }
+        $f = $this->createCacheItem;
+
+        return $f($key, $value, $isHit);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        foreach ($keys as $key) {
+            CacheItem::validateKey($key);
+        }
+
+        return $this->generateItems($keys, time(), $this->createCacheItem);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        foreach ($keys as $key) {
+            $this->deleteItem($key);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $item = (array) $item;
+        $key = $item["\0*\0key"];
+        $value = $item["\0*\0value"];
+        $expiry = $item["\0*\0expiry"];
+
+        if (null !== $expiry && $expiry <= time()) {
+            $this->deleteItem($key);
+
+            return true;
+        }
+        if ($this->storeSerialized) {
+            try {
+                $value = serialize($value);
+            } catch (\Exception $e) {
+                $type = \is_object($value) ? \get_class($value) : \gettype($value);
+                CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', ['key' => $key, 'type' => $type, 'exception' => $e]);
+
+                return false;
+            }
+        }
+        if (null === $expiry && 0 < $item["\0*\0defaultLifetime"]) {
+            $expiry = time() + $item["\0*\0defaultLifetime"];
+        }
+
+        $this->values[$key] = $value;
+        $this->expiries[$key] = null !== $expiry ? $expiry : PHP_INT_MAX;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return $this->save($item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return true;
+    }
+}

core/vendor/symfony/cache/Adapter/ChainAdapter.php

@@ -0,0 +1,273 @@
+<?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 Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+
+/**
+ * Chains several adapters together.
+ *
+ * Cached items are fetched from the first adapter having them in its data store.
+ * They are saved and deleted in all adapters at once.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class ChainAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    private $adapters = [];
+    private $adapterCount;
+    private $syncItem;
+
+    /**
+     * @param CacheItemPoolInterface[] $adapters        The ordered list of adapters used to fetch cached items
+     * @param int                      $defaultLifetime The default lifetime of items propagated from lower adapters to upper ones
+     */
+    public function __construct(array $adapters, $defaultLifetime = 0)
+    {
+        if (!$adapters) {
+            throw new InvalidArgumentException('At least one adapter must be specified.');
+        }
+
+        foreach ($adapters as $adapter) {
+            if (!$adapter instanceof CacheItemPoolInterface) {
+                throw new InvalidArgumentException(sprintf('The class "%s" does not implement the "%s" interface.', \get_class($adapter), CacheItemPoolInterface::class));
+            }
+
+            if ($adapter instanceof AdapterInterface) {
+                $this->adapters[] = $adapter;
+            } else {
+                $this->adapters[] = new ProxyAdapter($adapter);
+            }
+        }
+        $this->adapterCount = \count($this->adapters);
+
+        $this->syncItem = \Closure::bind(
+            static function ($sourceItem, $item) use ($defaultLifetime) {
+                $item->value = $sourceItem->value;
+                $item->expiry = $sourceItem->expiry;
+                $item->isHit = $sourceItem->isHit;
+
+                if (0 < $sourceItem->defaultLifetime && $sourceItem->defaultLifetime < $defaultLifetime) {
+                    $defaultLifetime = $sourceItem->defaultLifetime;
+                }
+                if (0 < $defaultLifetime && ($item->defaultLifetime <= 0 || $defaultLifetime < $item->defaultLifetime)) {
+                    $item->defaultLifetime = $defaultLifetime;
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $syncItem = $this->syncItem;
+        $misses = [];
+
+        foreach ($this->adapters as $i => $adapter) {
+            $item = $adapter->getItem($key);
+
+            if ($item->isHit()) {
+                while (0 <= --$i) {
+                    $this->adapters[$i]->save($syncItem($item, $misses[$i]));
+                }
+
+                return $item;
+            }
+
+            $misses[$i] = $item;
+        }
+
+        return $item;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        return $this->generateItems($this->adapters[0]->getItems($keys), 0);
+    }
+
+    private function generateItems($items, $adapterIndex)
+    {
+        $missing = [];
+        $misses = [];
+        $nextAdapterIndex = $adapterIndex + 1;
+        $nextAdapter = isset($this->adapters[$nextAdapterIndex]) ? $this->adapters[$nextAdapterIndex] : null;
+
+        foreach ($items as $k => $item) {
+            if (!$nextAdapter || $item->isHit()) {
+                yield $k => $item;
+            } else {
+                $missing[] = $k;
+                $misses[$k] = $item;
+            }
+        }
+
+        if ($missing) {
+            $syncItem = $this->syncItem;
+            $adapter = $this->adapters[$adapterIndex];
+            $items = $this->generateItems($nextAdapter->getItems($missing), $nextAdapterIndex);
+
+            foreach ($items as $k => $item) {
+                if ($item->isHit()) {
+                    $adapter->save($syncItem($item, $misses[$k]));
+                }
+
+                yield $k => $item;
+            }
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        foreach ($this->adapters as $adapter) {
+            if ($adapter->hasItem($key)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $cleared = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $cleared = $this->adapters[$i]->clear() && $cleared;
+        }
+
+        return $cleared;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        $deleted = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $deleted = $this->adapters[$i]->deleteItem($key) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        $deleted = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $deleted = $this->adapters[$i]->deleteItems($keys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        $saved = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $saved = $this->adapters[$i]->save($item) && $saved;
+        }
+
+        return $saved;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        $saved = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $saved = $this->adapters[$i]->saveDeferred($item) && $saved;
+        }
+
+        return $saved;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        $committed = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $committed = $this->adapters[$i]->commit() && $committed;
+        }
+
+        return $committed;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        $pruned = true;
+
+        foreach ($this->adapters as $adapter) {
+            if ($adapter instanceof PruneableInterface) {
+                $pruned = $adapter->prune() && $pruned;
+            }
+        }
+
+        return $pruned;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        foreach ($this->adapters as $adapter) {
+            if ($adapter instanceof ResettableInterface) {
+                $adapter->reset();
+            }
+        }
+    }
+}

core/vendor/symfony/cache/Adapter/DoctrineAdapter.php

@@ -0,0 +1,31 @@
+<?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 Doctrine\Common\Cache\CacheProvider;
+use Symfony\Component\Cache\Traits\DoctrineTrait;
+
+class DoctrineAdapter extends AbstractAdapter
+{
+    use DoctrineTrait;
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     */
+    public function __construct(CacheProvider $provider, $namespace = '', $defaultLifetime = 0)
+    {
+        parent::__construct('', $defaultLifetime);
+        $this->provider = $provider;
+        $provider->setNamespace($namespace);
+    }
+}

core/vendor/symfony/cache/Adapter/FilesystemAdapter.php

@@ -0,0 +1,31 @@
+<?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 Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\FilesystemTrait;
+
+class FilesystemAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use FilesystemTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $directory
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $directory = null)
+    {
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+    }
+}

core/vendor/symfony/cache/Adapter/MemcachedAdapter.php

@@ -0,0 +1,36 @@
+<?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 Symfony\Component\Cache\Traits\MemcachedTrait;
+
+class MemcachedAdapter extends AbstractAdapter
+{
+    use MemcachedTrait;
+
+    protected $maxIdLength = 250;
+
+    /**
+     * Using a MemcachedAdapter with a TagAwareAdapter for storing tags is discouraged.
+     * Using a RedisAdapter is recommended instead. If you cannot do otherwise, be aware that:
+     * - the Memcached::OPT_BINARY_PROTOCOL must be enabled
+     *   (that's the default when using MemcachedAdapter::createConnection());
+     * - tags eviction by Memcached's LRU algorithm will break by-tags invalidation;
+     *   your Memcached memory should be large enough to never trigger LRU.
+     *
+     * Using a MemcachedAdapter as a pure items store is fine.
+     */
+    public function __construct(\Memcached $client, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->init($client, $namespace, $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Adapter/NullAdapter.php

@@ -0,0 +1,121 @@
+<?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;
+
+/**
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ */
+class NullAdapter implements AdapterInterface
+{
+    private $createCacheItem;
+
+    public function __construct()
+    {
+        $this->createCacheItem = \Closure::bind(
+            function ($key) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->isHit = false;
+
+                return $item;
+            },
+            $this,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $f = $this->createCacheItem;
+
+        return $f($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        return $this->generateItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return false;
+    }
+
+    private function generateItems(array $keys)
+    {
+        $f = $this->createCacheItem;
+
+        foreach ($keys as $key) {
+            yield $key => $f($key);
+        }
+    }
+}

core/vendor/symfony/cache/Adapter/PdoAdapter.php

@@ -0,0 +1,53 @@
+<?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 Doctrine\DBAL\Connection;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\PdoTrait;
+
+class PdoAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use PdoTrait;
+
+    protected $maxIdLength = 255;
+
+    /**
+     * You can either pass an existing database connection as PDO instance or
+     * a Doctrine DBAL Connection or a DSN string that will be used to
+     * lazy-connect to the database when the cache is actually used.
+     *
+     * List of available options:
+     *  * db_table: The name of the table [default: cache_items]
+     *  * db_id_col: The column where to store the cache id [default: item_id]
+     *  * db_data_col: The column where to store the cache data [default: item_data]
+     *  * db_lifetime_col: The column where to store the lifetime [default: item_lifetime]
+     *  * db_time_col: The column where to store the timestamp [default: item_time]
+     *  * db_username: The username when lazy-connect [default: '']
+     *  * db_password: The password when lazy-connect [default: '']
+     *  * db_connection_options: An array of driver-specific connection options [default: []]
+     *
+     * @param \PDO|Connection|string $connOrDsn       A \PDO or Connection instance or DSN string or null
+     * @param string                 $namespace
+     * @param int                    $defaultLifetime
+     * @param array                  $options         An associative array of options
+     *
+     * @throws InvalidArgumentException When first argument is not PDO nor Connection nor string
+     * @throws InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
+     * @throws InvalidArgumentException When namespace contains invalid characters
+     */
+    public function __construct($connOrDsn, $namespace = '', $defaultLifetime = 0, array $options = [])
+    {
+        $this->init($connOrDsn, $namespace, $defaultLifetime, $options);
+    }
+}

core/vendor/symfony/cache/Adapter/PhpArrayAdapter.php

@@ -0,0 +1,303 @@
+<?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 Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\PhpArrayTrait;
+
+/**
+ * Caches items at warm up time using a PHP array that is stored in shared memory by OPCache since PHP 7.0.
+ * Warmed up items are read-only and run-time discovered items are cached using a fallback adapter.
+ *
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class PhpArrayAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    use PhpArrayTrait;
+
+    private $createCacheItem;
+
+    /**
+     * @param string           $file         The PHP file were values are cached
+     * @param AdapterInterface $fallbackPool A pool to fallback on when an item is not hit
+     */
+    public function __construct($file, AdapterInterface $fallbackPool)
+    {
+        $this->file = $file;
+        $this->pool = $fallbackPool;
+        $this->zendDetectUnicode = filter_var(ini_get('zend.detect_unicode'), FILTER_VALIDATE_BOOLEAN);
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $value, $isHit) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * This adapter should only be used on PHP 7.0+ to take advantage of how PHP
+     * stores arrays in its latest versions. This factory method decorates the given
+     * fallback pool with this adapter only if the current PHP version is supported.
+     *
+     * @param string                 $file         The PHP file were values are cached
+     * @param CacheItemPoolInterface $fallbackPool Fallback for old PHP versions or opcache disabled
+     *
+     * @return CacheItemPoolInterface
+     */
+    public static function create($file, CacheItemPoolInterface $fallbackPool)
+    {
+        // Shared memory is available in PHP 7.0+ with OPCache enabled and in HHVM
+        if ((\PHP_VERSION_ID >= 70000 && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN)) || \defined('HHVM_VERSION')) {
+            if (!$fallbackPool instanceof AdapterInterface) {
+                $fallbackPool = new ProxyAdapter($fallbackPool);
+            }
+
+            return new static($file, $fallbackPool);
+        }
+
+        return $fallbackPool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+        if (!isset($this->values[$key])) {
+            return $this->pool->getItem($key);
+        }
+
+        $value = $this->values[$key];
+        $isHit = true;
+
+        if ('N;' === $value) {
+            $value = null;
+        } elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+            try {
+                $e = null;
+                $value = unserialize($value);
+            } catch (\Error $e) {
+            } catch (\Exception $e) {
+            }
+            if (null !== $e) {
+                $value = null;
+                $isHit = false;
+            }
+        }
+
+        $f = $this->createCacheItem;
+
+        return $f($key, $value, $isHit);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+            }
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return $this->generateItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return isset($this->values[$key]) || $this->pool->hasItem($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$key]) && $this->pool->deleteItem($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        $deleted = true;
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+            }
+
+            if (isset($this->values[$key])) {
+                $deleted = false;
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        if ($fallbackKeys) {
+            $deleted = $this->pool->deleteItems($fallbackKeys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$item->getKey()]) && $this->pool->save($item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$item->getKey()]) && $this->pool->saveDeferred($item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return $this->pool->commit();
+    }
+
+    /**
+     * @return \Generator
+     */
+    private function generateItems(array $keys)
+    {
+        $f = $this->createCacheItem;
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (isset($this->values[$key])) {
+                $value = $this->values[$key];
+
+                if ('N;' === $value) {
+                    yield $key => $f($key, null, true);
+                } elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+                    try {
+                        yield $key => $f($key, unserialize($value), true);
+                    } catch (\Error $e) {
+                        yield $key => $f($key, null, false);
+                    } catch (\Exception $e) {
+                        yield $key => $f($key, null, false);
+                    }
+                } else {
+                    yield $key => $f($key, $value, true);
+                }
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+
+        if ($fallbackKeys) {
+            foreach ($this->pool->getItems($fallbackKeys) as $key => $item) {
+                yield $key => $item;
+            }
+        }
+    }
+
+    /**
+     * @throws \ReflectionException When $class is not found and is required
+     *
+     * @internal to be removed in Symfony 5.0
+     */
+    public static function throwOnRequiredClass($class)
+    {
+        $e = new \ReflectionException("Class $class does not exist");
+        $trace = $e->getTrace();
+        $autoloadFrame = [
+            'function' => 'spl_autoload_call',
+            'args' => [$class],
+        ];
+        $i = 1 + array_search($autoloadFrame, $trace, true);
+
+        if (isset($trace[$i]['function']) && !isset($trace[$i]['class'])) {
+            switch ($trace[$i]['function']) {
+                case 'get_class_methods':
+                case 'get_class_vars':
+                case 'get_parent_class':
+                case 'is_a':
+                case 'is_subclass_of':
+                case 'class_exists':
+                case 'class_implements':
+                case 'class_parents':
+                case 'trait_exists':
+                case 'defined':
+                case 'interface_exists':
+                case 'method_exists':
+                case 'property_exists':
+                case 'is_callable':
+                    return;
+            }
+        }
+
+        throw $e;
+    }
+}

core/vendor/symfony/cache/Adapter/PhpFilesAdapter.php

@@ -0,0 +1,41 @@
+<?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 Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\PhpFilesTrait;
+
+class PhpFilesAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use PhpFilesTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $directory
+     *
+     * @throws CacheException if OPcache is not enabled
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $directory = null)
+    {
+        if (!static::isSupported()) {
+            throw new CacheException('OPcache is not enabled');
+        }
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+
+        $e = new \Exception();
+        $this->includeHandler = function () use ($e) { throw $e; };
+        $this->zendDetectUnicode = filter_var(ini_get('zend.detect_unicode'), FILTER_VALIDATE_BOOLEAN);
+    }
+}

core/vendor/symfony/cache/Adapter/ProxyAdapter.php

@@ -0,0 +1,198 @@
+<?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 Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ProxyAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    use ProxyTrait;
+
+    private $namespace;
+    private $namespaceLen;
+    private $createCacheItem;
+    private $poolHash;
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     */
+    public function __construct(CacheItemPoolInterface $pool, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->pool = $pool;
+        $this->poolHash = $poolHash = spl_object_hash($pool);
+        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace);
+        $this->namespaceLen = \strlen($namespace);
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $innerItem) use ($defaultLifetime, $poolHash) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->defaultLifetime = $defaultLifetime;
+                $item->poolHash = $poolHash;
+
+                if (null !== $innerItem) {
+                    $item->value = $innerItem->get();
+                    $item->isHit = $innerItem->isHit();
+                    $item->innerItem = $innerItem;
+                    $innerItem->set(null);
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $f = $this->createCacheItem;
+        $item = $this->pool->getItem($this->getId($key));
+
+        return $f($key, $item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        if ($this->namespaceLen) {
+            foreach ($keys as $i => $key) {
+                $keys[$i] = $this->getId($key);
+            }
+        }
+
+        return $this->generateItems($this->pool->getItems($keys));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        return $this->pool->hasItem($this->getId($key));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return $this->pool->deleteItem($this->getId($key));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        if ($this->namespaceLen) {
+            foreach ($keys as $i => $key) {
+                $keys[$i] = $this->getId($key);
+            }
+        }
+
+        return $this->pool->deleteItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        return $this->doSave($item, __FUNCTION__);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return $this->doSave($item, __FUNCTION__);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return $this->pool->commit();
+    }
+
+    private function doSave(CacheItemInterface $item, $method)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $item = (array) $item;
+        $expiry = $item["\0*\0expiry"];
+        if (null === $expiry && 0 < $item["\0*\0defaultLifetime"]) {
+            $expiry = time() + $item["\0*\0defaultLifetime"];
+        }
+
+        if ($item["\0*\0poolHash"] === $this->poolHash && $item["\0*\0innerItem"]) {
+            $innerItem = $item["\0*\0innerItem"];
+        } elseif ($this->pool instanceof AdapterInterface) {
+            // this is an optimization specific for AdapterInterface implementations
+            // so we can save a round-trip to the backend by just creating a new item
+            $f = $this->createCacheItem;
+            $innerItem = $f($this->namespace.$item["\0*\0key"], null);
+        } else {
+            $innerItem = $this->pool->getItem($this->namespace.$item["\0*\0key"]);
+        }
+
+        $innerItem->set($item["\0*\0value"]);
+        $innerItem->expiresAt(null !== $expiry ? \DateTime::createFromFormat('U', $expiry) : null);
+
+        return $this->pool->$method($innerItem);
+    }
+
+    private function generateItems($items)
+    {
+        $f = $this->createCacheItem;
+
+        foreach ($items as $key => $item) {
+            if ($this->namespaceLen) {
+                $key = substr($key, $this->namespaceLen);
+            }
+
+            yield $key => $f($key, $item);
+        }
+    }
+
+    private function getId($key)
+    {
+        CacheItem::validateKey($key);
+
+        return $this->namespace.$key;
+    }
+}

core/vendor/symfony/cache/Adapter/RedisAdapter.php

@@ -0,0 +1,29 @@
+<?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 Symfony\Component\Cache\Traits\RedisTrait;
+
+class RedisAdapter extends AbstractAdapter
+{
+    use RedisTrait;
+
+    /**
+     * @param \Redis|\RedisArray|\RedisCluster|\Predis\Client $redisClient     The redis client
+     * @param string                                          $namespace       The default namespace
+     * @param int                                             $defaultLifetime The default lifetime
+     */
+    public function __construct($redisClient, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->init($redisClient, $namespace, $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Adapter/SimpleCacheAdapter.php

@@ -0,0 +1,83 @@
+<?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\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class SimpleCacheAdapter extends AbstractAdapter implements PruneableInterface
+{
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = '_';
+
+    use ProxyTrait;
+
+    private $miss;
+
+    public function __construct(CacheInterface $pool, $namespace = '', $defaultLifetime = 0)
+    {
+        parent::__construct($namespace, $defaultLifetime);
+
+        $this->pool = $pool;
+        $this->miss = new \stdClass();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        foreach ($this->pool->getMultiple($ids, $this->miss) as $key => $value) {
+            if ($this->miss !== $value) {
+                yield $key => $value;
+            }
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        return $this->pool->has($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        return $this->pool->deleteMultiple($ids);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        return $this->pool->setMultiple($values, 0 === $lifetime ? null : $lifetime);
+    }
+}

core/vendor/symfony/cache/Adapter/TagAwareAdapter.php

@@ -0,0 +1,395 @@
+<?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 Psr\Cache\InvalidArgumentException;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TagAwareAdapter implements TagAwareAdapterInterface, PruneableInterface, ResettableInterface
+{
+    const TAGS_PREFIX = "\0tags\0";
+
+    use ProxyTrait;
+
+    private $deferred = [];
+    private $createCacheItem;
+    private $setCacheItemTags;
+    private $getTagsByKey;
+    private $invalidateTags;
+    private $tags;
+    private $knownTagVersions = [];
+    private $knownTagVersionsTtl;
+
+    public function __construct(AdapterInterface $itemsPool, AdapterInterface $tagsPool = null, $knownTagVersionsTtl = 0.15)
+    {
+        $this->pool = $itemsPool;
+        $this->tags = $tagsPool ?: $itemsPool;
+        $this->knownTagVersionsTtl = $knownTagVersionsTtl;
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $value, CacheItem $protoItem) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->defaultLifetime = $protoItem->defaultLifetime;
+                $item->expiry = $protoItem->expiry;
+                $item->poolHash = $protoItem->poolHash;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->setCacheItemTags = \Closure::bind(
+            static function (CacheItem $item, $key, array &$itemTags) {
+                if (!$item->isHit) {
+                    return $item;
+                }
+                if (isset($itemTags[$key])) {
+                    foreach ($itemTags[$key] as $tag => $version) {
+                        $item->prevTags[$tag] = $tag;
+                    }
+                    unset($itemTags[$key]);
+                } else {
+                    $item->value = null;
+                    $item->isHit = false;
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->getTagsByKey = \Closure::bind(
+            static function ($deferred) {
+                $tagsByKey = [];
+                foreach ($deferred as $key => $item) {
+                    $tagsByKey[$key] = $item->tags;
+                }
+
+                return $tagsByKey;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->invalidateTags = \Closure::bind(
+            static function (AdapterInterface $tagsAdapter, array $tags) {
+                foreach ($tags as $v) {
+                    $v->defaultLifetime = 0;
+                    $v->expiry = null;
+                    $tagsAdapter->saveDeferred($v);
+                }
+
+                return $tagsAdapter->commit();
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function invalidateTags(array $tags)
+    {
+        $ok = true;
+        $tagsByKey = [];
+        $invalidatedTags = [];
+        foreach ($tags as $tag) {
+            CacheItem::validateKey($tag);
+            $invalidatedTags[$tag] = 0;
+        }
+
+        if ($this->deferred) {
+            $items = $this->deferred;
+            foreach ($items as $key => $item) {
+                if (!$this->pool->saveDeferred($item)) {
+                    unset($this->deferred[$key]);
+                    $ok = false;
+                }
+            }
+
+            $f = $this->getTagsByKey;
+            $tagsByKey = $f($items);
+            $this->deferred = [];
+        }
+
+        $tagVersions = $this->getTagVersions($tagsByKey, $invalidatedTags);
+        $f = $this->createCacheItem;
+
+        foreach ($tagsByKey as $key => $tags) {
+            $this->pool->saveDeferred($f(static::TAGS_PREFIX.$key, array_intersect_key($tagVersions, $tags), $items[$key]));
+        }
+        $ok = $this->pool->commit() && $ok;
+
+        if ($invalidatedTags) {
+            $f = $this->invalidateTags;
+            $ok = $f($this->tags, $invalidatedTags) && $ok;
+        }
+
+        return $ok;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        if (!$this->pool->hasItem($key)) {
+            return false;
+        }
+
+        $itemTags = $this->pool->getItem(static::TAGS_PREFIX.$key);
+
+        if (!$itemTags->isHit()) {
+            return false;
+        }
+
+        if (!$itemTags = $itemTags->get()) {
+            return true;
+        }
+
+        foreach ($this->getTagVersions([$itemTags]) as $tag => $version) {
+            if ($itemTags[$tag] !== $version && 1 !== $itemTags[$tag] - $version) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        foreach ($this->getItems([$key]) as $item) {
+            return $item;
+        }
+
+        return null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $tagKeys = [];
+
+        foreach ($keys as $key) {
+            if ('' !== $key && \is_string($key)) {
+                $key = static::TAGS_PREFIX.$key;
+                $tagKeys[$key] = $key;
+            }
+        }
+
+        try {
+            $items = $this->pool->getItems($tagKeys + $keys);
+        } catch (InvalidArgumentException $e) {
+            $this->pool->getItems($keys); // Should throw an exception
+
+            throw $e;
+        }
+
+        return $this->generateItems($items, $tagKeys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->deferred = [];
+
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return $this->deleteItems([$key]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        foreach ($keys as $key) {
+            if ('' !== $key && \is_string($key)) {
+                $keys[] = static::TAGS_PREFIX.$key;
+            }
+        }
+
+        return $this->pool->deleteItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return $this->commit();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return $this->invalidateTags([]);
+    }
+
+    public function __sleep()
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        $this->commit();
+    }
+
+    private function generateItems($items, array $tagKeys)
+    {
+        $bufferedItems = $itemTags = [];
+        $f = $this->setCacheItemTags;
+
+        foreach ($items as $key => $item) {
+            if (!$tagKeys) {
+                yield $key => $f($item, static::TAGS_PREFIX.$key, $itemTags);
+                continue;
+            }
+            if (!isset($tagKeys[$key])) {
+                $bufferedItems[$key] = $item;
+                continue;
+            }
+
+            unset($tagKeys[$key]);
+
+            if ($item->isHit()) {
+                $itemTags[$key] = $item->get() ?: [];
+            }
+
+            if (!$tagKeys) {
+                $tagVersions = $this->getTagVersions($itemTags);
+
+                foreach ($itemTags as $key => $tags) {
+                    foreach ($tags as $tag => $version) {
+                        if ($tagVersions[$tag] !== $version && 1 !== $version - $tagVersions[$tag]) {
+                            unset($itemTags[$key]);
+                            continue 2;
+                        }
+                    }
+                }
+                $tagVersions = $tagKeys = null;
+
+                foreach ($bufferedItems as $key => $item) {
+                    yield $key => $f($item, static::TAGS_PREFIX.$key, $itemTags);
+                }
+                $bufferedItems = null;
+            }
+        }
+    }
+
+    private function getTagVersions(array $tagsByKey, array &$invalidatedTags = [])
+    {
+        $tagVersions = $invalidatedTags;
+
+        foreach ($tagsByKey as $tags) {
+            $tagVersions += $tags;
+        }
+
+        if (!$tagVersions) {
+            return [];
+        }
+
+        if (!$fetchTagVersions = 1 !== \func_num_args()) {
+            foreach ($tagsByKey as $tags) {
+                foreach ($tags as $tag => $version) {
+                    if ($tagVersions[$tag] > $version) {
+                        $tagVersions[$tag] = $version;
+                    }
+                }
+            }
+        }
+
+        $now = microtime(true);
+        $tags = [];
+        foreach ($tagVersions as $tag => $version) {
+            $tags[$tag.static::TAGS_PREFIX] = $tag;
+            if ($fetchTagVersions || !isset($this->knownTagVersions[$tag])) {
+                $fetchTagVersions = true;
+                continue;
+            }
+            $version -= $this->knownTagVersions[$tag][1];
+            if ((0 !== $version && 1 !== $version) || $now - $this->knownTagVersions[$tag][0] >= $this->knownTagVersionsTtl) {
+                // reuse previously fetched tag versions up to the ttl, unless we are storing items or a potential miss arises
+                $fetchTagVersions = true;
+            } else {
+                $this->knownTagVersions[$tag][1] += $version;
+            }
+        }
+
+        if (!$fetchTagVersions) {
+            return $tagVersions;
+        }
+
+        foreach ($this->tags->getItems(array_keys($tags)) as $tag => $version) {
+            $tagVersions[$tag = $tags[$tag]] = $version->get() ?: 0;
+            if (isset($invalidatedTags[$tag])) {
+                $invalidatedTags[$tag] = $version->set(++$tagVersions[$tag]);
+            }
+            $this->knownTagVersions[$tag] = [$now, $tagVersions[$tag]];
+        }
+
+        return $tagVersions;
+    }
+}

core/vendor/symfony/cache/Adapter/TagAwareAdapterInterface.php

@@ -0,0 +1,33 @@
+<?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\InvalidArgumentException;
+
+/**
+ * Interface for invalidating cached items using tags.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface TagAwareAdapterInterface extends AdapterInterface
+{
+    /**
+     * Invalidates cached items using tags.
+     *
+     * @param string[] $tags An array of tags to invalidate
+     *
+     * @return bool True on success
+     *
+     * @throws InvalidArgumentException When $tags is not valid
+     */
+    public function invalidateTags(array $tags);
+}

core/vendor/symfony/cache/Adapter/TraceableAdapter.php

@@ -0,0 +1,233 @@
+<?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\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+
+/**
+ * An adapter that collects data about all cache calls.
+ *
+ * @author Aaron Scherer <aequasi@gmail.com>
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TraceableAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    protected $pool;
+    private $calls = [];
+
+    public function __construct(AdapterInterface $pool)
+    {
+        $this->pool = $pool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            $item = $this->pool->getItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+        if ($event->result[$key] = $item->isHit()) {
+            ++$event->hits;
+        } else {
+            ++$event->misses;
+        }
+
+        return $item;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->hasItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->deleteItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$item->getKey()] = $this->pool->save($item);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$item->getKey()] = $this->pool->saveDeferred($item);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            $result = $this->pool->getItems($keys);
+        } finally {
+            $event->end = microtime(true);
+        }
+        $f = function () use ($result, $event) {
+            $event->result = [];
+            foreach ($result as $key => $item) {
+                if ($event->result[$key] = $item->isHit()) {
+                    ++$event->hits;
+                } else {
+                    ++$event->misses;
+                }
+                yield $key => $item;
+            }
+        };
+
+        return $f();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->clear();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        $event = $this->start(__FUNCTION__);
+        $event->result['keys'] = $keys;
+        try {
+            return $event->result['result'] = $this->pool->deleteItems($keys);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->commit();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        if (!$this->pool instanceof PruneableInterface) {
+            return false;
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->prune();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        if (!$this->pool instanceof ResettableInterface) {
+            return;
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            $this->pool->reset();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function getCalls()
+    {
+        return $this->calls;
+    }
+
+    public function clearCalls()
+    {
+        $this->calls = [];
+    }
+
+    protected function start($name)
+    {
+        $this->calls[] = $event = new TraceableAdapterEvent();
+        $event->name = $name;
+        $event->start = microtime(true);
+
+        return $event;
+    }
+}
+
+class TraceableAdapterEvent
+{
+    public $name;
+    public $start;
+    public $end;
+    public $result;
+    public $hits = 0;
+    public $misses = 0;
+}

core/vendor/symfony/cache/Adapter/TraceableTagAwareAdapter.php

@@ -0,0 +1,36 @@
+<?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;
+
+/**
+ * @author Robin Chalas <robin.chalas@gmail.com>
+ */
+class TraceableTagAwareAdapter extends TraceableAdapter implements TagAwareAdapterInterface
+{
+    public function __construct(TagAwareAdapterInterface $pool)
+    {
+        parent::__construct($pool);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function invalidateTags(array $tags)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->invalidateTags($tags);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+}

core/vendor/symfony/cache/CHANGELOG.md

@@ -0,0 +1,36 @@
+CHANGELOG
+=========
+
+3.4.0
+-----
+
+ * added using options from Memcached DSN
+ * added PruneableInterface so PSR-6 or PSR-16 cache implementations can declare support for manual stale cache pruning
+ * added prune logic to FilesystemTrait, PhpFilesTrait, PdoTrait, TagAwareAdapter and ChainTrait
+ * now FilesystemAdapter, PhpFilesAdapter, FilesystemCache, PhpFilesCache, PdoAdapter, PdoCache, ChainAdapter, and
+   ChainCache implement PruneableInterface and support manual stale cache pruning
+
+3.3.0
+-----
+
+ * [EXPERIMENTAL] added CacheItem::getPreviousTags() to get bound tags coming from the pool storage if any
+ * added PSR-16 "Simple Cache" implementations for all existing PSR-6 adapters
+ * added Psr6Cache and SimpleCacheAdapter for bidirectional interoperability between PSR-6 and PSR-16
+ * added MemcachedAdapter (PSR-6) and MemcachedCache (PSR-16)
+ * added TraceableAdapter (PSR-6) and TraceableCache (PSR-16)
+
+3.2.0
+-----
+
+ * added TagAwareAdapter for tags-based invalidation
+ * added PdoAdapter with PDO and Doctrine DBAL support
+ * added PhpArrayAdapter and PhpFilesAdapter for OPcache-backed shared memory storage (PHP 7+ only)
+ * added NullAdapter
+
+3.1.0
+-----
+
+ * added the component with strict PSR-6 implementations
+ * added ApcuAdapter, ArrayAdapter, FilesystemAdapter and RedisAdapter
+ * added AbstractAdapter, ChainAdapter and ProxyAdapter
+ * added DoctrineAdapter and DoctrineProvider for bidirectional interoperability with Doctrine Cache

core/vendor/symfony/cache/CacheItem.php

@@ -0,0 +1,193 @@
+<?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;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+final class CacheItem implements CacheItemInterface
+{
+    protected $key;
+    protected $value;
+    protected $isHit = false;
+    protected $expiry;
+    protected $defaultLifetime;
+    protected $tags = [];
+    protected $prevTags = [];
+    protected $innerItem;
+    protected $poolHash;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getKey()
+    {
+        return $this->key;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get()
+    {
+        return $this->value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHit()
+    {
+        return $this->isHit;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return $this
+     */
+    public function set($value)
+    {
+        $this->value = $value;
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return $this
+     */
+    public function expiresAt($expiration)
+    {
+        if (null === $expiration) {
+            $this->expiry = $this->defaultLifetime > 0 ? time() + $this->defaultLifetime : null;
+        } elseif ($expiration instanceof \DateTimeInterface) {
+            $this->expiry = (int) $expiration->format('U');
+        } else {
+            throw new InvalidArgumentException(sprintf('Expiration date must implement DateTimeInterface or be null, "%s" given', \is_object($expiration) ? \get_class($expiration) : \gettype($expiration)));
+        }
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return $this
+     */
+    public function expiresAfter($time)
+    {
+        if (null === $time) {
+            $this->expiry = $this->defaultLifetime > 0 ? time() + $this->defaultLifetime : null;
+        } elseif ($time instanceof \DateInterval) {
+            $this->expiry = (int) \DateTime::createFromFormat('U', time())->add($time)->format('U');
+        } elseif (\is_int($time)) {
+            $this->expiry = $time + time();
+        } else {
+            throw new InvalidArgumentException(sprintf('Expiration date must be an integer, a DateInterval or null, "%s" given', \is_object($time) ? \get_class($time) : \gettype($time)));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds a tag to a cache item.
+     *
+     * @param string|string[] $tags A tag or array of tags
+     *
+     * @return $this
+     *
+     * @throws InvalidArgumentException When $tag is not valid
+     */
+    public function tag($tags)
+    {
+        if (!\is_array($tags)) {
+            $tags = [$tags];
+        }
+        foreach ($tags as $tag) {
+            if (!\is_string($tag)) {
+                throw new InvalidArgumentException(sprintf('Cache tag must be string, "%s" given', \is_object($tag) ? \get_class($tag) : \gettype($tag)));
+            }
+            if (isset($this->tags[$tag])) {
+                continue;
+            }
+            if ('' === $tag) {
+                throw new InvalidArgumentException('Cache tag length must be greater than zero');
+            }
+            if (false !== strpbrk($tag, '{}()/\@:')) {
+                throw new InvalidArgumentException(sprintf('Cache tag "%s" contains reserved characters {}()/\@:', $tag));
+            }
+            $this->tags[$tag] = $tag;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns the list of tags bound to the value coming from the pool storage if any.
+     *
+     * @return array
+     */
+    public function getPreviousTags()
+    {
+        return $this->prevTags;
+    }
+
+    /**
+     * Validates a cache key according to PSR-6.
+     *
+     * @param string $key The key to validate
+     *
+     * @return string
+     *
+     * @throws InvalidArgumentException When $key is not valid
+     */
+    public static function validateKey($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if ('' === $key) {
+            throw new InvalidArgumentException('Cache key length must be greater than zero');
+        }
+        if (false !== strpbrk($key, '{}()/\@:')) {
+            throw new InvalidArgumentException(sprintf('Cache key "%s" contains reserved characters {}()/\@:', $key));
+        }
+
+        return $key;
+    }
+
+    /**
+     * Internal logging helper.
+     *
+     * @internal
+     */
+    public static function log(LoggerInterface $logger = null, $message, $context = [])
+    {
+        if ($logger) {
+            $logger->warning($message, $context);
+        } else {
+            $replace = [];
+            foreach ($context as $k => $v) {
+                if (is_scalar($v)) {
+                    $replace['{'.$k.'}'] = $v;
+                }
+            }
+            @trigger_error(strtr($message, $replace), E_USER_WARNING);
+        }
+    }
+}

core/vendor/symfony/cache/DataCollector/CacheDataCollector.php

@@ -0,0 +1,188 @@
+<?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\DataCollector;
+
+use Symfony\Component\Cache\Adapter\TraceableAdapter;
+use Symfony\Component\Cache\Adapter\TraceableAdapterEvent;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\DataCollector\DataCollector;
+use Symfony\Component\HttpKernel\DataCollector\LateDataCollectorInterface;
+
+/**
+ * @author Aaron Scherer <aequasi@gmail.com>
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class CacheDataCollector extends DataCollector implements LateDataCollectorInterface
+{
+    /**
+     * @var TraceableAdapter[]
+     */
+    private $instances = [];
+
+    /**
+     * @param string $name
+     */
+    public function addInstance($name, TraceableAdapter $instance)
+    {
+        $this->instances[$name] = $instance;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function collect(Request $request, Response $response, \Exception $exception = null)
+    {
+        $empty = ['calls' => [], 'config' => [], 'options' => [], 'statistics' => []];
+        $this->data = ['instances' => $empty, 'total' => $empty];
+        foreach ($this->instances as $name => $instance) {
+            $this->data['instances']['calls'][$name] = $instance->getCalls();
+        }
+
+        $this->data['instances']['statistics'] = $this->calculateStatistics();
+        $this->data['total']['statistics'] = $this->calculateTotalStatistics();
+    }
+
+    public function reset()
+    {
+        $this->data = [];
+        foreach ($this->instances as $instance) {
+            $instance->clearCalls();
+        }
+    }
+
+    public function lateCollect()
+    {
+        $this->data = $this->cloneVar($this->data);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'cache';
+    }
+
+    /**
+     * Method returns amount of logged Cache reads: "get" calls.
+     *
+     * @return array
+     */
+    public function getStatistics()
+    {
+        return $this->data['instances']['statistics'];
+    }
+
+    /**
+     * Method returns the statistic totals.
+     *
+     * @return array
+     */
+    public function getTotals()
+    {
+        return $this->data['total']['statistics'];
+    }
+
+    /**
+     * Method returns all logged Cache call objects.
+     *
+     * @return mixed
+     */
+    public function getCalls()
+    {
+        return $this->data['instances']['calls'];
+    }
+
+    /**
+     * @return array
+     */
+    private function calculateStatistics()
+    {
+        $statistics = [];
+        foreach ($this->data['instances']['calls'] as $name => $calls) {
+            $statistics[$name] = [
+                'calls' => 0,
+                'time' => 0,
+                'reads' => 0,
+                'writes' => 0,
+                'deletes' => 0,
+                'hits' => 0,
+                'misses' => 0,
+            ];
+            /** @var TraceableAdapterEvent $call */
+            foreach ($calls as $call) {
+                ++$statistics[$name]['calls'];
+                $statistics[$name]['time'] += $call->end - $call->start;
+                if ('getItem' === $call->name) {
+                    ++$statistics[$name]['reads'];
+                    if ($call->hits) {
+                        ++$statistics[$name]['hits'];
+                    } else {
+                        ++$statistics[$name]['misses'];
+                    }
+                } elseif ('getItems' === $call->name) {
+                    $statistics[$name]['reads'] += $call->hits + $call->misses;
+                    $statistics[$name]['hits'] += $call->hits;
+                    $statistics[$name]['misses'] += $call->misses;
+                } elseif ('hasItem' === $call->name) {
+                    ++$statistics[$name]['reads'];
+                    if (false === $call->result) {
+                        ++$statistics[$name]['misses'];
+                    } else {
+                        ++$statistics[$name]['hits'];
+                    }
+                } elseif ('save' === $call->name) {
+                    ++$statistics[$name]['writes'];
+                } elseif ('deleteItem' === $call->name) {
+                    ++$statistics[$name]['deletes'];
+                }
+            }
+            if ($statistics[$name]['reads']) {
+                $statistics[$name]['hit_read_ratio'] = round(100 * $statistics[$name]['hits'] / $statistics[$name]['reads'], 2);
+            } else {
+                $statistics[$name]['hit_read_ratio'] = null;
+            }
+        }
+
+        return $statistics;
+    }
+
+    /**
+     * @return array
+     */
+    private function calculateTotalStatistics()
+    {
+        $statistics = $this->getStatistics();
+        $totals = [
+            'calls' => 0,
+            'time' => 0,
+            'reads' => 0,
+            'writes' => 0,
+            'deletes' => 0,
+            'hits' => 0,
+            'misses' => 0,
+        ];
+        foreach ($statistics as $name => $values) {
+            foreach ($totals as $key => $value) {
+                $totals[$key] += $statistics[$name][$key];
+            }
+        }
+        if ($totals['reads']) {
+            $totals['hit_read_ratio'] = round(100 * $totals['hits'] / $totals['reads'], 2);
+        } else {
+            $totals['hit_read_ratio'] = null;
+        }
+
+        return $totals;
+    }
+}

core/vendor/symfony/cache/DoctrineProvider.php

@@ -0,0 +1,103 @@
+<?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;
+
+use Doctrine\Common\Cache\CacheProvider;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class DoctrineProvider extends CacheProvider implements PruneableInterface, ResettableInterface
+{
+    private $pool;
+
+    public function __construct(CacheItemPoolInterface $pool)
+    {
+        $this->pool = $pool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        return $this->pool instanceof PruneableInterface && $this->pool->prune();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        if ($this->pool instanceof ResettableInterface) {
+            $this->pool->reset();
+        }
+        $this->setNamespace($this->getNamespace());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch($id)
+    {
+        $item = $this->pool->getItem(rawurlencode($id));
+
+        return $item->isHit() ? $item->get() : false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doContains($id)
+    {
+        return $this->pool->hasItem(rawurlencode($id));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave($id, $data, $lifeTime = 0)
+    {
+        $item = $this->pool->getItem(rawurlencode($id));
+
+        if (0 < $lifeTime) {
+            $item->expiresAfter($lifeTime);
+        }
+
+        return $this->pool->save($item->set($data));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete($id)
+    {
+        return $this->pool->deleteItem(rawurlencode($id));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFlush()
+    {
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doGetStats()
+    {
+        return null;
+    }
+}

core/vendor/symfony/cache/Exception/CacheException.php

@@ -0,0 +1,19 @@
+<?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\Exception;
+
+use Psr\Cache\CacheException as Psr6CacheInterface;
+use Psr\SimpleCache\CacheException as SimpleCacheInterface;
+
+class CacheException extends \Exception implements Psr6CacheInterface, SimpleCacheInterface
+{
+}

core/vendor/symfony/cache/Exception/InvalidArgumentException.php

@@ -0,0 +1,19 @@
+<?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\Exception;
+
+use Psr\Cache\InvalidArgumentException as Psr6CacheInterface;
+use Psr\SimpleCache\InvalidArgumentException as SimpleCacheInterface;
+
+class InvalidArgumentException extends \InvalidArgumentException implements Psr6CacheInterface, SimpleCacheInterface
+{
+}

core/vendor/symfony/cache/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2016-2019 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

core/vendor/symfony/cache/PruneableInterface.php

@@ -0,0 +1,23 @@
+<?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;
+
+/**
+ * Interface extends psr-6 and psr-16 caches to allow for pruning (deletion) of all expired cache items.
+ */
+interface PruneableInterface
+{
+    /**
+     * @return bool
+     */
+    public function prune();
+}

core/vendor/symfony/cache/README.md

@@ -0,0 +1,18 @@
+Symfony PSR-6 implementation for caching
+========================================
+
+This component provides an extended [PSR-6](http://www.php-fig.org/psr/psr-6/)
+implementation for adding cache to your applications. It is designed to have a
+low overhead so that caching is fastest. It ships with a few caching adapters
+for the most widespread and suited to caching backends. It also provides a
+`doctrine/cache` proxy adapter to cover more advanced caching needs and a proxy
+adapter for greater interoperability between PSR-6 implementations.
+
+Resources
+---------
+
+  * [Documentation](https://symfony.com/doc/current/components/cache.html)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)

core/vendor/symfony/cache/ResettableInterface.php

@@ -0,0 +1,20 @@
+<?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;
+
+/**
+ * Resets a pool's local state.
+ */
+interface ResettableInterface
+{
+    public function reset();
+}

core/vendor/symfony/cache/Simple/AbstractCache.php

@@ -0,0 +1,190 @@
+<?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\Simple;
+
+use Psr\Log\LoggerAwareInterface;
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\AbstractTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+abstract class AbstractCache implements CacheInterface, LoggerAwareInterface, ResettableInterface
+{
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = ':';
+
+    use AbstractTrait {
+        deleteItems as private;
+        AbstractTrait::deleteItem as delete;
+        AbstractTrait::hasItem as has;
+    }
+
+    private $defaultLifetime;
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     */
+    protected function __construct($namespace = '', $defaultLifetime = 0)
+    {
+        $this->defaultLifetime = max(0, (int) $defaultLifetime);
+        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).':';
+        if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
+            throw new InvalidArgumentException(sprintf('Namespace must be %d chars max, %d given ("%s")', $this->maxIdLength - 24, \strlen($namespace), $namespace));
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key, $default = null)
+    {
+        $id = $this->getId($key);
+
+        try {
+            foreach ($this->doFetch([$id]) as $value) {
+                return $value;
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch key "{key}"', ['key' => $key, 'exception' => $e]);
+        }
+
+        return $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $value, $ttl = null)
+    {
+        CacheItem::validateKey($key);
+
+        return $this->setMultiple([$key => $value], $ttl);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMultiple($keys, $default = null)
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+        $ids = [];
+
+        foreach ($keys as $key) {
+            $ids[] = $this->getId($key);
+        }
+        try {
+            $values = $this->doFetch($ids);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch requested values', ['keys' => $keys, 'exception' => $e]);
+            $values = [];
+        }
+        $ids = array_combine($ids, $keys);
+
+        return $this->generateValues($values, $ids, $default);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setMultiple($values, $ttl = null)
+    {
+        if (!\is_array($values) && !$values instanceof \Traversable) {
+            throw new InvalidArgumentException(sprintf('Cache values must be array or Traversable, "%s" given', \is_object($values) ? \get_class($values) : \gettype($values)));
+        }
+        $valuesById = [];
+
+        foreach ($values as $key => $value) {
+            if (\is_int($key)) {
+                $key = (string) $key;
+            }
+            $valuesById[$this->getId($key)] = $value;
+        }
+        if (false === $ttl = $this->normalizeTtl($ttl)) {
+            return $this->doDelete(array_keys($valuesById));
+        }
+
+        try {
+            $e = $this->doSave($valuesById, $ttl);
+        } catch (\Exception $e) {
+        }
+        if (true === $e || [] === $e) {
+            return true;
+        }
+        $keys = [];
+        foreach (\is_array($e) ? $e : array_keys($valuesById) as $id) {
+            $keys[] = substr($id, \strlen($this->namespace));
+        }
+        CacheItem::log($this->logger, 'Failed to save values', ['keys' => $keys, 'exception' => $e instanceof \Exception ? $e : null]);
+
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteMultiple($keys)
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+
+        return $this->deleteItems($keys);
+    }
+
+    private function normalizeTtl($ttl)
+    {
+        if (null === $ttl) {
+            return $this->defaultLifetime;
+        }
+        if ($ttl instanceof \DateInterval) {
+            $ttl = (int) \DateTime::createFromFormat('U', 0)->add($ttl)->format('U');
+        }
+        if (\is_int($ttl)) {
+            return 0 < $ttl ? $ttl : false;
+        }
+
+        throw new InvalidArgumentException(sprintf('Expiration date must be an integer, a DateInterval or null, "%s" given', \is_object($ttl) ? \get_class($ttl) : \gettype($ttl)));
+    }
+
+    private function generateValues($values, &$keys, $default)
+    {
+        try {
+            foreach ($values as $id => $value) {
+                if (!isset($keys[$id])) {
+                    $id = key($keys);
+                }
+                $key = $keys[$id];
+                unset($keys[$id]);
+                yield $key => $value;
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch requested values', ['keys' => array_values($keys), 'exception' => $e]);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $default;
+        }
+    }
+}

core/vendor/symfony/cache/Simple/ApcuCache.php

@@ -0,0 +1,29 @@
+<?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\Simple;
+
+use Symfony\Component\Cache\Traits\ApcuTrait;
+
+class ApcuCache extends AbstractCache
+{
+    use ApcuTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $version
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $version = null)
+    {
+        $this->init($namespace, $defaultLifetime, $version);
+    }
+}

core/vendor/symfony/cache/Simple/ArrayCache.php

@@ -0,0 +1,148 @@
+<?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\Simple;
+
+use Psr\Log\LoggerAwareInterface;
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ArrayTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ArrayCache implements CacheInterface, LoggerAwareInterface, ResettableInterface
+{
+    use ArrayTrait {
+        ArrayTrait::deleteItem as delete;
+        ArrayTrait::hasItem as has;
+    }
+
+    private $defaultLifetime;
+
+    /**
+     * @param int  $defaultLifetime
+     * @param bool $storeSerialized Disabling serialization can lead to cache corruptions when storing mutable values but increases performance otherwise
+     */
+    public function __construct($defaultLifetime = 0, $storeSerialized = true)
+    {
+        $this->defaultLifetime = (int) $defaultLifetime;
+        $this->storeSerialized = $storeSerialized;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key, $default = null)
+    {
+        foreach ($this->getMultiple([$key], $default) as $v) {
+            return $v;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMultiple($keys, $default = null)
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+        foreach ($keys as $key) {
+            CacheItem::validateKey($key);
+        }
+
+        return $this->generateItems($keys, time(), function ($k, $v, $hit) use ($default) { return $hit ? $v : $default; });
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteMultiple($keys)
+    {
+        if (!\is_array($keys) && !$keys instanceof \Traversable) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+        foreach ($keys as $key) {
+            $this->delete($key);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $value, $ttl = null)
+    {
+        CacheItem::validateKey($key);
+
+        return $this->setMultiple([$key => $value], $ttl);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setMultiple($values, $ttl = null)
+    {
+        if (!\is_array($values) && !$values instanceof \Traversable) {
+            throw new InvalidArgumentException(sprintf('Cache values must be array or Traversable, "%s" given', \is_object($values) ? \get_class($values) : \gettype($values)));
+        }
+        $valuesArray = [];
+
+        foreach ($values as $key => $value) {
+            \is_int($key) || CacheItem::validateKey($key);
+            $valuesArray[$key] = $value;
+        }
+        if (false === $ttl = $this->normalizeTtl($ttl)) {
+            return $this->deleteMultiple(array_keys($valuesArray));
+        }
+        if ($this->storeSerialized) {
+            foreach ($valuesArray as $key => $value) {
+                try {
+                    $valuesArray[$key] = serialize($value);
+                } catch (\Exception $e) {
+                    $type = \is_object($value) ? \get_class($value) : \gettype($value);
+                    CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', ['key' => $key, 'type' => $type, 'exception' => $e]);
+
+                    return false;
+                }
+            }
+        }
+        $expiry = 0 < $ttl ? time() + $ttl : PHP_INT_MAX;
+
+        foreach ($valuesArray as $key => $value) {
+            $this->values[$key] = $value;
+            $this->expiries[$key] = $expiry;
+        }
+
+        return true;
+    }
+
+    private function normalizeTtl($ttl)
+    {
+        if (null === $ttl) {
+            return $this->defaultLifetime;
+        }
+        if ($ttl instanceof \DateInterval) {
+            $ttl = (int) \DateTime::createFromFormat('U', 0)->add($ttl)->format('U');
+        }
+        if (\is_int($ttl)) {
+            return 0 < $ttl ? $ttl : false;
+        }
+
+        throw new InvalidArgumentException(sprintf('Expiration date must be an integer, a DateInterval or null, "%s" given', \is_object($ttl) ? \get_class($ttl) : \gettype($ttl)));
+    }
+}

core/vendor/symfony/cache/Simple/ChainCache.php

@@ -0,0 +1,252 @@
+<?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\Simple;
+
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+
+/**
+ * Chains several caches together.
+ *
+ * Cached items are fetched from the first cache having them in its data store.
+ * They are saved and deleted in all caches at once.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ChainCache implements CacheInterface, PruneableInterface, ResettableInterface
+{
+    private $miss;
+    private $caches = [];
+    private $defaultLifetime;
+    private $cacheCount;
+
+    /**
+     * @param CacheInterface[] $caches          The ordered list of caches used to fetch cached items
+     * @param int              $defaultLifetime The lifetime of items propagated from lower caches to upper ones
+     */
+    public function __construct(array $caches, $defaultLifetime = 0)
+    {
+        if (!$caches) {
+            throw new InvalidArgumentException('At least one cache must be specified.');
+        }
+
+        foreach ($caches as $cache) {
+            if (!$cache instanceof CacheInterface) {
+                throw new InvalidArgumentException(sprintf('The class "%s" does not implement the "%s" interface.', \get_class($cache), CacheInterface::class));
+            }
+        }
+
+        $this->miss = new \stdClass();
+        $this->caches = array_values($caches);
+        $this->cacheCount = \count($this->caches);
+        $this->defaultLifetime = 0 < $defaultLifetime ? (int) $defaultLifetime : null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key, $default = null)
+    {
+        $miss = null !== $default && \is_object($default) ? $default : $this->miss;
+
+        foreach ($this->caches as $i => $cache) {
+            $value = $cache->get($key, $miss);
+
+            if ($miss !== $value) {
+                while (0 <= --$i) {
+                    $this->caches[$i]->set($key, $value, $this->defaultLifetime);
+                }
+
+                return $value;
+            }
+        }
+
+        return $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMultiple($keys, $default = null)
+    {
+        $miss = null !== $default && \is_object($default) ? $default : $this->miss;
+
+        return $this->generateItems($this->caches[0]->getMultiple($keys, $miss), 0, $miss, $default);
+    }
+
+    private function generateItems($values, $cacheIndex, $miss, $default)
+    {
+        $missing = [];
+        $nextCacheIndex = $cacheIndex + 1;
+        $nextCache = isset($this->caches[$nextCacheIndex]) ? $this->caches[$nextCacheIndex] : null;
+
+        foreach ($values as $k => $value) {
+            if ($miss !== $value) {
+                yield $k => $value;
+            } elseif (!$nextCache) {
+                yield $k => $default;
+            } else {
+                $missing[] = $k;
+            }
+        }
+
+        if ($missing) {
+            $cache = $this->caches[$cacheIndex];
+            $values = $this->generateItems($nextCache->getMultiple($missing, $miss), $nextCacheIndex, $miss, $default);
+
+            foreach ($values as $k => $value) {
+                if ($miss !== $value) {
+                    $cache->set($k, $value, $this->defaultLifetime);
+                    yield $k => $value;
+                } else {
+                    yield $k => $default;
+                }
+            }
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($key)
+    {
+        foreach ($this->caches as $cache) {
+            if ($cache->has($key)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $cleared = true;
+        $i = $this->cacheCount;
+
+        while ($i--) {
+            $cleared = $this->caches[$i]->clear() && $cleared;
+        }
+
+        return $cleared;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete($key)
+    {
+        $deleted = true;
+        $i = $this->cacheCount;
+
+        while ($i--) {
+            $deleted = $this->caches[$i]->delete($key) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteMultiple($keys)
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        }
+        $deleted = true;
+        $i = $this->cacheCount;
+
+        while ($i--) {
+            $deleted = $this->caches[$i]->deleteMultiple($keys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $value, $ttl = null)
+    {
+        $saved = true;
+        $i = $this->cacheCount;
+
+        while ($i--) {
+            $saved = $this->caches[$i]->set($key, $value, $ttl) && $saved;
+        }
+
+        return $saved;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setMultiple($values, $ttl = null)
+    {
+        if ($values instanceof \Traversable) {
+            $valuesIterator = $values;
+            $values = function () use ($valuesIterator, &$values) {
+                $generatedValues = [];
+
+                foreach ($valuesIterator as $key => $value) {
+                    yield $key => $value;
+                    $generatedValues[$key] = $value;
+                }
+
+                $values = $generatedValues;
+            };
+            $values = $values();
+        }
+        $saved = true;
+        $i = $this->cacheCount;
+
+        while ($i--) {
+            $saved = $this->caches[$i]->setMultiple($values, $ttl) && $saved;
+        }
+
+        return $saved;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        $pruned = true;
+
+        foreach ($this->caches as $cache) {
+            if ($cache instanceof PruneableInterface) {
+                $pruned = $cache->prune() && $pruned;
+            }
+        }
+
+        return $pruned;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        foreach ($this->caches as $cache) {
+            if ($cache instanceof ResettableInterface) {
+                $cache->reset();
+            }
+        }
+    }
+}

core/vendor/symfony/cache/Simple/DoctrineCache.php

@@ -0,0 +1,31 @@
+<?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\Simple;
+
+use Doctrine\Common\Cache\CacheProvider;
+use Symfony\Component\Cache\Traits\DoctrineTrait;
+
+class DoctrineCache extends AbstractCache
+{
+    use DoctrineTrait;
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     */
+    public function __construct(CacheProvider $provider, $namespace = '', $defaultLifetime = 0)
+    {
+        parent::__construct('', $defaultLifetime);
+        $this->provider = $provider;
+        $provider->setNamespace($namespace);
+    }
+}

core/vendor/symfony/cache/Simple/FilesystemCache.php

@@ -0,0 +1,31 @@
+<?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\Simple;
+
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\FilesystemTrait;
+
+class FilesystemCache extends AbstractCache implements PruneableInterface
+{
+    use FilesystemTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $directory
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $directory = null)
+    {
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+    }
+}

core/vendor/symfony/cache/Simple/MemcachedCache.php

@@ -0,0 +1,30 @@
+<?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\Simple;
+
+use Symfony\Component\Cache\Traits\MemcachedTrait;
+
+class MemcachedCache extends AbstractCache
+{
+    use MemcachedTrait;
+
+    protected $maxIdLength = 250;
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     */
+    public function __construct(\Memcached $client, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->init($client, $namespace, $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Simple/NullCache.php

@@ -0,0 +1,86 @@
+<?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\Simple;
+
+use Psr\SimpleCache\CacheInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class NullCache implements CacheInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key, $default = null)
+    {
+        return $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMultiple($keys, $default = null)
+    {
+        foreach ($keys as $key) {
+            yield $key => $default;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($key)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete($key)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteMultiple($keys)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $value, $ttl = null)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setMultiple($values, $ttl = null)
+    {
+        return false;
+    }
+}

core/vendor/symfony/cache/Simple/PdoCache.php

@@ -0,0 +1,51 @@
+<?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\Simple;
+
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\PdoTrait;
+
+class PdoCache extends AbstractCache implements PruneableInterface
+{
+    use PdoTrait;
+
+    protected $maxIdLength = 255;
+
+    /**
+     * You can either pass an existing database connection as PDO instance or
+     * a Doctrine DBAL Connection or a DSN string that will be used to
+     * lazy-connect to the database when the cache is actually used.
+     *
+     * List of available options:
+     *  * db_table: The name of the table [default: cache_items]
+     *  * db_id_col: The column where to store the cache id [default: item_id]
+     *  * db_data_col: The column where to store the cache data [default: item_data]
+     *  * db_lifetime_col: The column where to store the lifetime [default: item_lifetime]
+     *  * db_time_col: The column where to store the timestamp [default: item_time]
+     *  * db_username: The username when lazy-connect [default: '']
+     *  * db_password: The password when lazy-connect [default: '']
+     *  * db_connection_options: An array of driver-specific connection options [default: []]
+     *
+     * @param \PDO|Connection|string $connOrDsn       A \PDO or Connection instance or DSN string or null
+     * @param string                 $namespace
+     * @param int                    $defaultLifetime
+     * @param array                  $options         An associative array of options
+     *
+     * @throws InvalidArgumentException When first argument is not PDO nor Connection nor string
+     * @throws InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
+     * @throws InvalidArgumentException When namespace contains invalid characters
+     */
+    public function __construct($connOrDsn, $namespace = '', $defaultLifetime = 0, array $options = [])
+    {
+        $this->init($connOrDsn, $namespace, $defaultLifetime, $options);
+    }
+}

core/vendor/symfony/cache/Simple/PhpArrayCache.php

@@ -0,0 +1,259 @@
+<?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\Simple;
+
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\PhpArrayTrait;
+
+/**
+ * Caches items at warm up time using a PHP array that is stored in shared memory by OPCache since PHP 7.0.
+ * Warmed up items are read-only and run-time discovered items are cached using a fallback adapter.
+ *
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class PhpArrayCache implements CacheInterface, PruneableInterface, ResettableInterface
+{
+    use PhpArrayTrait;
+
+    /**
+     * @param string         $file         The PHP file were values are cached
+     * @param CacheInterface $fallbackPool A pool to fallback on when an item is not hit
+     */
+    public function __construct($file, CacheInterface $fallbackPool)
+    {
+        $this->file = $file;
+        $this->pool = $fallbackPool;
+        $this->zendDetectUnicode = filter_var(ini_get('zend.detect_unicode'), FILTER_VALIDATE_BOOLEAN);
+    }
+
+    /**
+     * This adapter should only be used on PHP 7.0+ to take advantage of how PHP
+     * stores arrays in its latest versions. This factory method decorates the given
+     * fallback pool with this adapter only if the current PHP version is supported.
+     *
+     * @param string $file The PHP file were values are cached
+     *
+     * @return CacheInterface
+     */
+    public static function create($file, CacheInterface $fallbackPool)
+    {
+        // Shared memory is available in PHP 7.0+ with OPCache enabled and in HHVM
+        if ((\PHP_VERSION_ID >= 70000 && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN)) || \defined('HHVM_VERSION')) {
+            return new static($file, $fallbackPool);
+        }
+
+        return $fallbackPool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key, $default = null)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+        if (!isset($this->values[$key])) {
+            return $this->pool->get($key, $default);
+        }
+
+        $value = $this->values[$key];
+
+        if ('N;' === $value) {
+            $value = null;
+        } elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+            try {
+                $e = null;
+                $value = unserialize($value);
+            } catch (\Error $e) {
+            } catch (\Exception $e) {
+            }
+            if (null !== $e) {
+                return $default;
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMultiple($keys, $default = null)
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+            }
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return $this->generateItems($keys, $default);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return isset($this->values[$key]) || $this->pool->has($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$key]) && $this->pool->delete($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteMultiple($keys)
+    {
+        if (!\is_array($keys) && !$keys instanceof \Traversable) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+
+        $deleted = true;
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+            }
+
+            if (isset($this->values[$key])) {
+                $deleted = false;
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        if ($fallbackKeys) {
+            $deleted = $this->pool->deleteMultiple($fallbackKeys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $value, $ttl = null)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$key]) && $this->pool->set($key, $value, $ttl);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setMultiple($values, $ttl = null)
+    {
+        if (!\is_array($values) && !$values instanceof \Traversable) {
+            throw new InvalidArgumentException(sprintf('Cache values must be array or Traversable, "%s" given', \is_object($values) ? \get_class($values) : \gettype($values)));
+        }
+
+        $saved = true;
+        $fallbackValues = [];
+
+        foreach ($values as $key => $value) {
+            if (!\is_string($key) && !\is_int($key)) {
+                throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+            }
+
+            if (isset($this->values[$key])) {
+                $saved = false;
+            } else {
+                $fallbackValues[$key] = $value;
+            }
+        }
+
+        if ($fallbackValues) {
+            $saved = $this->pool->setMultiple($fallbackValues, $ttl) && $saved;
+        }
+
+        return $saved;
+    }
+
+    private function generateItems(array $keys, $default)
+    {
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (isset($this->values[$key])) {
+                $value = $this->values[$key];
+
+                if ('N;' === $value) {
+                    yield $key => null;
+                } elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+                    try {
+                        yield $key => unserialize($value);
+                    } catch (\Error $e) {
+                        yield $key => $default;
+                    } catch (\Exception $e) {
+                        yield $key => $default;
+                    }
+                } else {
+                    yield $key => $value;
+                }
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+
+        if ($fallbackKeys) {
+            foreach ($this->pool->getMultiple($fallbackKeys, $default) as $key => $item) {
+                yield $key => $item;
+            }
+        }
+    }
+}

core/vendor/symfony/cache/Simple/PhpFilesCache.php

@@ -0,0 +1,41 @@
+<?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\Simple;
+
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\PhpFilesTrait;
+
+class PhpFilesCache extends AbstractCache implements PruneableInterface
+{
+    use PhpFilesTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $directory
+     *
+     * @throws CacheException if OPcache is not enabled
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $directory = null)
+    {
+        if (!static::isSupported()) {
+            throw new CacheException('OPcache is not enabled');
+        }
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+
+        $e = new \Exception();
+        $this->includeHandler = function () use ($e) { throw $e; };
+        $this->zendDetectUnicode = filter_var(ini_get('zend.detect_unicode'), FILTER_VALIDATE_BOOLEAN);
+    }
+}

core/vendor/symfony/cache/Simple/Psr6Cache.php

@@ -0,0 +1,241 @@
+<?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\Simple;
+
+use Psr\Cache\CacheException as Psr6CacheException;
+use Psr\Cache\CacheItemPoolInterface;
+use Psr\SimpleCache\CacheException as SimpleCacheException;
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class Psr6Cache implements CacheInterface, PruneableInterface, ResettableInterface
+{
+    use ProxyTrait;
+
+    private $createCacheItem;
+    private $cacheItemPrototype;
+
+    public function __construct(CacheItemPoolInterface $pool)
+    {
+        $this->pool = $pool;
+
+        if (!$pool instanceof AdapterInterface) {
+            return;
+        }
+        $cacheItemPrototype = &$this->cacheItemPrototype;
+        $createCacheItem = \Closure::bind(
+            static function ($key, $value, $allowInt = false) use (&$cacheItemPrototype) {
+                $item = clone $cacheItemPrototype;
+                $item->key = $allowInt && \is_int($key) ? (string) $key : CacheItem::validateKey($key);
+                $item->value = $value;
+                $item->isHit = false;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->createCacheItem = function ($key, $value, $allowInt = false) use ($createCacheItem) {
+            if (null === $this->cacheItemPrototype) {
+                $this->get($allowInt && \is_int($key) ? (string) $key : $key);
+            }
+            $this->createCacheItem = $createCacheItem;
+
+            return $createCacheItem($key, $value, $allowInt);
+        };
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key, $default = null)
+    {
+        try {
+            $item = $this->pool->getItem($key);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        if (null === $this->cacheItemPrototype) {
+            $this->cacheItemPrototype = clone $item;
+            $this->cacheItemPrototype->set(null);
+        }
+
+        return $item->isHit() ? $item->get() : $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $value, $ttl = null)
+    {
+        try {
+            if (null !== $f = $this->createCacheItem) {
+                $item = $f($key, $value);
+            } else {
+                $item = $this->pool->getItem($key)->set($value);
+            }
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        if (null !== $ttl) {
+            $item->expiresAfter($ttl);
+        }
+
+        return $this->pool->save($item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete($key)
+    {
+        try {
+            return $this->pool->deleteItem($key);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMultiple($keys, $default = null)
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+
+        try {
+            $items = $this->pool->getItems($keys);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        $values = [];
+
+        foreach ($items as $key => $item) {
+            $values[$key] = $item->isHit() ? $item->get() : $default;
+        }
+
+        return $values;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setMultiple($values, $ttl = null)
+    {
+        $valuesIsArray = \is_array($values);
+        if (!$valuesIsArray && !$values instanceof \Traversable) {
+            throw new InvalidArgumentException(sprintf('Cache values must be array or Traversable, "%s" given', \is_object($values) ? \get_class($values) : \gettype($values)));
+        }
+        $items = [];
+
+        try {
+            if (null !== $f = $this->createCacheItem) {
+                $valuesIsArray = false;
+                foreach ($values as $key => $value) {
+                    $items[$key] = $f($key, $value, true);
+                }
+            } elseif ($valuesIsArray) {
+                $items = [];
+                foreach ($values as $key => $value) {
+                    $items[] = (string) $key;
+                }
+                $items = $this->pool->getItems($items);
+            } else {
+                foreach ($values as $key => $value) {
+                    if (\is_int($key)) {
+                        $key = (string) $key;
+                    }
+                    $items[$key] = $this->pool->getItem($key)->set($value);
+                }
+            }
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        $ok = true;
+
+        foreach ($items as $key => $item) {
+            if ($valuesIsArray) {
+                $item->set($values[$key]);
+            }
+            if (null !== $ttl) {
+                $item->expiresAfter($ttl);
+            }
+            $ok = $this->pool->saveDeferred($item) && $ok;
+        }
+
+        return $this->pool->commit() && $ok;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteMultiple($keys)
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', \is_object($keys) ? \get_class($keys) : \gettype($keys)));
+        }
+
+        try {
+            return $this->pool->deleteItems($keys);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($key)
+    {
+        try {
+            return $this->pool->hasItem($key);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+}

core/vendor/symfony/cache/Simple/RedisCache.php

@@ -0,0 +1,29 @@
+<?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\Simple;
+
+use Symfony\Component\Cache\Traits\RedisTrait;
+
+class RedisCache extends AbstractCache
+{
+    use RedisTrait;
+
+    /**
+     * @param \Redis|\RedisArray|\RedisCluster|\Predis\Client $redisClient
+     * @param string                                          $namespace
+     * @param int                                             $defaultLifetime
+     */
+    public function __construct($redisClient, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->init($redisClient, $namespace, $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Simple/TraceableCache.php

@@ -0,0 +1,241 @@
+<?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\Simple;
+
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+
+/**
+ * An adapter that collects data about all cache calls.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TraceableCache implements CacheInterface, PruneableInterface, ResettableInterface
+{
+    private $pool;
+    private $miss;
+    private $calls = [];
+
+    public function __construct(CacheInterface $pool)
+    {
+        $this->pool = $pool;
+        $this->miss = new \stdClass();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key, $default = null)
+    {
+        $miss = null !== $default && \is_object($default) ? $default : $this->miss;
+        $event = $this->start(__FUNCTION__);
+        try {
+            $value = $this->pool->get($key, $miss);
+        } finally {
+            $event->end = microtime(true);
+        }
+        if ($event->result[$key] = $miss !== $value) {
+            ++$event->hits;
+        } else {
+            ++$event->misses;
+            $value = $default;
+        }
+
+        return $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->has($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->delete($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $value, $ttl = null)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->set($key, $value, $ttl);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setMultiple($values, $ttl = null)
+    {
+        $event = $this->start(__FUNCTION__);
+        $event->result['keys'] = [];
+
+        if ($values instanceof \Traversable) {
+            $values = function () use ($values, $event) {
+                foreach ($values as $k => $v) {
+                    $event->result['keys'][] = $k;
+                    yield $k => $v;
+                }
+            };
+            $values = $values();
+        } elseif (\is_array($values)) {
+            $event->result['keys'] = array_keys($values);
+        }
+
+        try {
+            return $event->result['result'] = $this->pool->setMultiple($values, $ttl);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMultiple($keys, $default = null)
+    {
+        $miss = null !== $default && \is_object($default) ? $default : $this->miss;
+        $event = $this->start(__FUNCTION__);
+        try {
+            $result = $this->pool->getMultiple($keys, $miss);
+        } finally {
+            $event->end = microtime(true);
+        }
+        $f = function () use ($result, $event, $miss, $default) {
+            $event->result = [];
+            foreach ($result as $key => $value) {
+                if ($event->result[$key] = $miss !== $value) {
+                    ++$event->hits;
+                } else {
+                    ++$event->misses;
+                    $value = $default;
+                }
+                yield $key => $value;
+            }
+        };
+
+        return $f();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->clear();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteMultiple($keys)
+    {
+        $event = $this->start(__FUNCTION__);
+        if ($keys instanceof \Traversable) {
+            $keys = $event->result['keys'] = iterator_to_array($keys, false);
+        } else {
+            $event->result['keys'] = $keys;
+        }
+        try {
+            return $event->result['result'] = $this->pool->deleteMultiple($keys);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        if (!$this->pool instanceof PruneableInterface) {
+            return false;
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->prune();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        if (!$this->pool instanceof ResettableInterface) {
+            return;
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            $this->pool->reset();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function getCalls()
+    {
+        try {
+            return $this->calls;
+        } finally {
+            $this->calls = [];
+        }
+    }
+
+    private function start($name)
+    {
+        $this->calls[] = $event = new TraceableCacheEvent();
+        $event->name = $name;
+        $event->start = microtime(true);
+
+        return $event;
+    }
+}
+
+class TraceableCacheEvent
+{
+    public $name;
+    public $start;
+    public $end;
+    public $result;
+    public $hits = 0;
+    public $misses = 0;
+}

core/vendor/symfony/cache/Tests/Adapter/AbstractRedisAdapterTest.php

@@ -0,0 +1,46 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\RedisAdapter;
+
+abstract class AbstractRedisAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testExpiration' => 'Testing expiration slows down the test suite',
+        'testHasItemReturnsFalseWhenDeferredItemIsExpired' => 'Testing expiration slows down the test suite',
+        'testDefaultLifeTime' => 'Testing expiration slows down the test suite',
+    ];
+
+    protected static $redis;
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new RedisAdapter(self::$redis, str_replace('\\', '.', __CLASS__), $defaultLifetime);
+    }
+
+    public static function setUpBeforeClass()
+    {
+        if (!\extension_loaded('redis')) {
+            self::markTestSkipped('Extension redis required.');
+        }
+        if (!@((new \Redis())->connect(getenv('REDIS_HOST')))) {
+            $e = error_get_last();
+            self::markTestSkipped($e['message']);
+        }
+    }
+
+    public static function tearDownAfterClass()
+    {
+        self::$redis = null;
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/AdapterTestCase.php

@@ -0,0 +1,175 @@
+<?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\Tests\Adapter;
+
+use Cache\IntegrationTests\CachePoolTest;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\PruneableInterface;
+
+abstract class AdapterTestCase extends CachePoolTest
+{
+    protected function setUp()
+    {
+        parent::setUp();
+
+        if (!\array_key_exists('testDeferredSaveWithoutCommit', $this->skippedTests) && \defined('HHVM_VERSION')) {
+            $this->skippedTests['testDeferredSaveWithoutCommit'] = 'Destructors are called late on HHVM.';
+        }
+
+        if (!\array_key_exists('testPrune', $this->skippedTests) && !$this->createCachePool() instanceof PruneableInterface) {
+            $this->skippedTests['testPrune'] = 'Not a pruneable cache pool.';
+        }
+    }
+
+    public function testDefaultLifeTime()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        $cache = $this->createCachePool(2);
+
+        $item = $cache->getItem('key.dlt');
+        $item->set('value');
+        $cache->save($item);
+        sleep(1);
+
+        $item = $cache->getItem('key.dlt');
+        $this->assertTrue($item->isHit());
+
+        sleep(2);
+        $item = $cache->getItem('key.dlt');
+        $this->assertFalse($item->isHit());
+    }
+
+    public function testExpiration()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        $cache = $this->createCachePool();
+        $cache->save($cache->getItem('k1')->set('v1')->expiresAfter(2));
+        $cache->save($cache->getItem('k2')->set('v2')->expiresAfter(366 * 86400));
+
+        sleep(3);
+        $item = $cache->getItem('k1');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get(), "Item's value must be null when isHit() is false.");
+
+        $item = $cache->getItem('k2');
+        $this->assertTrue($item->isHit());
+        $this->assertSame('v2', $item->get());
+    }
+
+    public function testNotUnserializable()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        $cache = $this->createCachePool();
+
+        $item = $cache->getItem('foo');
+        $cache->save($item->set(new NotUnserializable()));
+
+        $item = $cache->getItem('foo');
+        $this->assertFalse($item->isHit());
+
+        foreach ($cache->getItems(['foo']) as $item) {
+        }
+        $cache->save($item->set(new NotUnserializable()));
+
+        foreach ($cache->getItems(['foo']) as $item) {
+        }
+        $this->assertFalse($item->isHit());
+    }
+
+    public function testPrune()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        if (!method_exists($this, 'isPruned')) {
+            $this->fail('Test classes for pruneable caches must implement `isPruned($cache, $name)` method.');
+        }
+
+        /** @var PruneableInterface|CacheItemPoolInterface $cache */
+        $cache = $this->createCachePool();
+
+        $doSet = function ($name, $value, \DateInterval $expiresAfter = null) use ($cache) {
+            $item = $cache->getItem($name);
+            $item->set($value);
+
+            if ($expiresAfter) {
+                $item->expiresAfter($expiresAfter);
+            }
+
+            $cache->save($item);
+        };
+
+        $doSet('foo', 'foo-val', new \DateInterval('PT05S'));
+        $doSet('bar', 'bar-val', new \DateInterval('PT10S'));
+        $doSet('baz', 'baz-val', new \DateInterval('PT15S'));
+        $doSet('qux', 'qux-val', new \DateInterval('PT20S'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertTrue($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'bar'));
+        $this->assertTrue($this->isPruned($cache, 'baz'));
+        $this->assertTrue($this->isPruned($cache, 'qux'));
+
+        $doSet('foo', 'foo-val');
+        $doSet('bar', 'bar-val', new \DateInterval('PT20S'));
+        $doSet('baz', 'baz-val', new \DateInterval('PT40S'));
+        $doSet('qux', 'qux-val', new \DateInterval('PT80S'));
+
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertFalse($this->isPruned($cache, 'bar'));
+        $this->assertFalse($this->isPruned($cache, 'baz'));
+        $this->assertFalse($this->isPruned($cache, 'qux'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'bar'));
+        $this->assertFalse($this->isPruned($cache, 'baz'));
+        $this->assertFalse($this->isPruned($cache, 'qux'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'baz'));
+        $this->assertFalse($this->isPruned($cache, 'qux'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'qux'));
+    }
+}
+
+class NotUnserializable implements \Serializable
+{
+    public function serialize()
+    {
+        return serialize(123);
+    }
+
+    public function unserialize($ser)
+    {
+        throw new \Exception(__CLASS__);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/ApcuAdapterTest.php

@@ -0,0 +1,124 @@
+<?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\Tests\Adapter;
+
+use Psr\Log\NullLogger;
+use Symfony\Component\Cache\Adapter\ApcuAdapter;
+
+class ApcuAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testExpiration' => 'Testing expiration slows down the test suite',
+        'testHasItemReturnsFalseWhenDeferredItemIsExpired' => 'Testing expiration slows down the test suite',
+        'testDefaultLifeTime' => 'Testing expiration slows down the test suite',
+    ];
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        if (!\function_exists('apcu_fetch') || !filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN)) {
+            $this->markTestSkipped('APCu extension is required.');
+        }
+        if ('cli' === \PHP_SAPI && !filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN)) {
+            if ('testWithCliSapi' !== $this->getName()) {
+                $this->markTestSkipped('apc.enable_cli=1 is required.');
+            }
+        }
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $this->markTestSkipped('Fails transiently on Windows.');
+        }
+
+        return new ApcuAdapter(str_replace('\\', '.', __CLASS__), $defaultLifetime);
+    }
+
+    public function testUnserializable()
+    {
+        $pool = $this->createCachePool();
+
+        $item = $pool->getItem('foo');
+        $item->set(function () {});
+
+        $this->assertFalse($pool->save($item));
+
+        $item = $pool->getItem('foo');
+        $this->assertFalse($item->isHit());
+    }
+
+    public function testVersion()
+    {
+        $namespace = str_replace('\\', '.', \get_class($this));
+
+        $pool1 = new ApcuAdapter($namespace, 0, 'p1');
+
+        $item = $pool1->getItem('foo');
+        $this->assertFalse($item->isHit());
+        $this->assertTrue($pool1->save($item->set('bar')));
+
+        $item = $pool1->getItem('foo');
+        $this->assertTrue($item->isHit());
+        $this->assertSame('bar', $item->get());
+
+        $pool2 = new ApcuAdapter($namespace, 0, 'p2');
+
+        $item = $pool2->getItem('foo');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get());
+
+        $item = $pool1->getItem('foo');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get());
+    }
+
+    public function testNamespace()
+    {
+        $namespace = str_replace('\\', '.', \get_class($this));
+
+        $pool1 = new ApcuAdapter($namespace.'_1', 0, 'p1');
+
+        $item = $pool1->getItem('foo');
+        $this->assertFalse($item->isHit());
+        $this->assertTrue($pool1->save($item->set('bar')));
+
+        $item = $pool1->getItem('foo');
+        $this->assertTrue($item->isHit());
+        $this->assertSame('bar', $item->get());
+
+        $pool2 = new ApcuAdapter($namespace.'_2', 0, 'p1');
+
+        $item = $pool2->getItem('foo');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get());
+
+        $item = $pool1->getItem('foo');
+        $this->assertTrue($item->isHit());
+        $this->assertSame('bar', $item->get());
+    }
+
+    public function testWithCliSapi()
+    {
+        try {
+            // disable PHPUnit error handler to mimic a production environment
+            $isCalled = false;
+            set_error_handler(function () use (&$isCalled) {
+                $isCalled = true;
+            });
+            $pool = new ApcuAdapter(str_replace('\\', '.', __CLASS__));
+            $pool->setLogger(new NullLogger());
+
+            $item = $pool->getItem('foo');
+            $item->isHit();
+            $pool->save($item->set('bar'));
+            $this->assertFalse($isCalled);
+        } finally {
+            restore_error_handler();
+        }
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/ArrayAdapterTest.php

@@ -0,0 +1,56 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class ArrayAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testDeferredSaveWithoutCommit' => 'Assumes a shared cache which ArrayAdapter is not.',
+        'testSaveWithoutExpire' => 'Assumes a shared cache which ArrayAdapter is not.',
+    ];
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new ArrayAdapter($defaultLifetime);
+    }
+
+    public function testGetValuesHitAndMiss()
+    {
+        /** @var ArrayAdapter $cache */
+        $cache = $this->createCachePool();
+
+        // Hit
+        $item = $cache->getItem('foo');
+        $item->set('4711');
+        $cache->save($item);
+
+        $fooItem = $cache->getItem('foo');
+        $this->assertTrue($fooItem->isHit());
+        $this->assertEquals('4711', $fooItem->get());
+
+        // Miss (should be present as NULL in $values)
+        $cache->getItem('bar');
+
+        $values = $cache->getValues();
+
+        $this->assertCount(2, $values);
+        $this->assertArrayHasKey('foo', $values);
+        $this->assertSame(serialize('4711'), $values['foo']);
+        $this->assertArrayHasKey('bar', $values);
+        $this->assertNull($values['bar']);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/ChainAdapterTest.php

@@ -0,0 +1,115 @@
+<?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\Tests\Adapter;
+
+use PHPUnit\Framework\MockObject\MockObject;
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\Adapter\ChainAdapter;
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Tests\Fixtures\ExternalAdapter;
+
+/**
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ * @group time-sensitive
+ */
+class ChainAdapterTest extends AdapterTestCase
+{
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new ChainAdapter([new ArrayAdapter($defaultLifetime), new ExternalAdapter(), new FilesystemAdapter('', $defaultLifetime)], $defaultLifetime);
+    }
+
+    public function testEmptyAdaptersException()
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('At least one adapter must be specified.');
+        new ChainAdapter([]);
+    }
+
+    public function testInvalidAdapterException()
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('The class "stdClass" does not implement');
+        new ChainAdapter([new \stdClass()]);
+    }
+
+    public function testPrune()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        $cache = new ChainAdapter([
+            $this->getPruneableMock(),
+            $this->getNonPruneableMock(),
+            $this->getPruneableMock(),
+        ]);
+        $this->assertTrue($cache->prune());
+
+        $cache = new ChainAdapter([
+            $this->getPruneableMock(),
+            $this->getFailingPruneableMock(),
+            $this->getPruneableMock(),
+        ]);
+        $this->assertFalse($cache->prune());
+    }
+
+    /**
+     * @return MockObject|PruneableCacheInterface
+     */
+    private function getPruneableMock()
+    {
+        $pruneable = $this
+            ->getMockBuilder(PruneableCacheInterface::class)
+            ->getMock();
+
+        $pruneable
+            ->expects($this->atLeastOnce())
+            ->method('prune')
+            ->willReturn(true);
+
+        return $pruneable;
+    }
+
+    /**
+     * @return MockObject|PruneableCacheInterface
+     */
+    private function getFailingPruneableMock()
+    {
+        $pruneable = $this
+            ->getMockBuilder(PruneableCacheInterface::class)
+            ->getMock();
+
+        $pruneable
+            ->expects($this->atLeastOnce())
+            ->method('prune')
+            ->willReturn(false);
+
+        return $pruneable;
+    }
+
+    /**
+     * @return MockObject|AdapterInterface
+     */
+    private function getNonPruneableMock()
+    {
+        return $this
+            ->getMockBuilder(AdapterInterface::class)
+            ->getMock();
+    }
+}
+
+interface PruneableCacheInterface extends PruneableInterface, AdapterInterface
+{
+}

core/vendor/symfony/cache/Tests/Adapter/DoctrineAdapterTest.php

@@ -0,0 +1,32 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\DoctrineAdapter;
+use Symfony\Component\Cache\Tests\Fixtures\ArrayCache;
+
+/**
+ * @group time-sensitive
+ */
+class DoctrineAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testDeferredSaveWithoutCommit' => 'Assumes a shared cache which ArrayCache is not.',
+        'testSaveWithoutExpire' => 'Assumes a shared cache which ArrayCache is not.',
+        'testNotUnserializable' => 'ArrayCache does not use serialize/unserialize',
+    ];
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new DoctrineAdapter(new ArrayCache($defaultLifetime), '', $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/FilesystemAdapterTest.php

@@ -0,0 +1,61 @@
+<?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\Tests\Adapter;
+
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class FilesystemAdapterTest extends AdapterTestCase
+{
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new FilesystemAdapter('', $defaultLifetime);
+    }
+
+    public static function tearDownAfterClass()
+    {
+        self::rmdir(sys_get_temp_dir().'/symfony-cache');
+    }
+
+    public static function rmdir($dir)
+    {
+        if (!file_exists($dir)) {
+            return;
+        }
+        if (!$dir || 0 !== strpos(\dirname($dir), sys_get_temp_dir())) {
+            throw new \Exception(__METHOD__."() operates only on subdirs of system's temp dir");
+        }
+        $children = new \RecursiveIteratorIterator(
+            new \RecursiveDirectoryIterator($dir, \RecursiveDirectoryIterator::SKIP_DOTS),
+            \RecursiveIteratorIterator::CHILD_FIRST
+        );
+        foreach ($children as $child) {
+            if ($child->isDir()) {
+                rmdir($child);
+            } else {
+                unlink($child);
+            }
+        }
+        rmdir($dir);
+    }
+
+    protected function isPruned(CacheItemPoolInterface $cache, $name)
+    {
+        $getFileMethod = (new \ReflectionObject($cache))->getMethod('getFile');
+        $getFileMethod->setAccessible(true);
+
+        return !file_exists($getFileMethod->invoke($cache, $name));
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/MaxIdLengthAdapterTest.php

@@ -0,0 +1,87 @@
+<?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\Tests\Adapter;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Cache\Adapter\AbstractAdapter;
+
+class MaxIdLengthAdapterTest extends TestCase
+{
+    public function testLongKey()
+    {
+        $cache = $this->getMockBuilder(MaxIdLengthAdapter::class)
+            ->setConstructorArgs([str_repeat('-', 10)])
+            ->setMethods(['doHave', 'doFetch', 'doDelete', 'doSave', 'doClear'])
+            ->getMock();
+
+        $cache->expects($this->exactly(2))
+            ->method('doHave')
+            ->withConsecutive(
+                [$this->equalTo('----------:0GTYWa9n4ed8vqNlOT2iEr:')],
+                [$this->equalTo('----------:---------------------------------------')]
+            );
+
+        $cache->hasItem(str_repeat('-', 40));
+        $cache->hasItem(str_repeat('-', 39));
+    }
+
+    public function testLongKeyVersioning()
+    {
+        $cache = $this->getMockBuilder(MaxIdLengthAdapter::class)
+            ->setConstructorArgs([str_repeat('-', 26)])
+            ->getMock();
+
+        $cache
+            ->method('doFetch')
+            ->willReturn(['2:']);
+
+        $reflectionClass = new \ReflectionClass(AbstractAdapter::class);
+
+        $reflectionMethod = $reflectionClass->getMethod('getId');
+        $reflectionMethod->setAccessible(true);
+
+        // No versioning enabled
+        $this->assertEquals('--------------------------:------------', $reflectionMethod->invokeArgs($cache, [str_repeat('-', 12)]));
+        $this->assertLessThanOrEqual(50, \strlen($reflectionMethod->invokeArgs($cache, [str_repeat('-', 12)])));
+        $this->assertLessThanOrEqual(50, \strlen($reflectionMethod->invokeArgs($cache, [str_repeat('-', 23)])));
+        $this->assertLessThanOrEqual(50, \strlen($reflectionMethod->invokeArgs($cache, [str_repeat('-', 40)])));
+
+        $reflectionProperty = $reflectionClass->getProperty('versioningIsEnabled');
+        $reflectionProperty->setAccessible(true);
+        $reflectionProperty->setValue($cache, true);
+
+        // Versioning enabled
+        $this->assertEquals('--------------------------:2:------------', $reflectionMethod->invokeArgs($cache, [str_repeat('-', 12)]));
+        $this->assertLessThanOrEqual(50, \strlen($reflectionMethod->invokeArgs($cache, [str_repeat('-', 12)])));
+        $this->assertLessThanOrEqual(50, \strlen($reflectionMethod->invokeArgs($cache, [str_repeat('-', 23)])));
+        $this->assertLessThanOrEqual(50, \strlen($reflectionMethod->invokeArgs($cache, [str_repeat('-', 40)])));
+    }
+
+    public function testTooLongNamespace()
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('Namespace must be 26 chars max, 40 given ("----------------------------------------")');
+        $this->getMockBuilder(MaxIdLengthAdapter::class)
+            ->setConstructorArgs([str_repeat('-', 40)])
+            ->getMock();
+    }
+}
+
+abstract class MaxIdLengthAdapter extends AbstractAdapter
+{
+    protected $maxIdLength = 50;
+
+    public function __construct($ns)
+    {
+        parent::__construct($ns);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/MemcachedAdapterTest.php

@@ -0,0 +1,198 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\AbstractAdapter;
+use Symfony\Component\Cache\Adapter\MemcachedAdapter;
+
+class MemcachedAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testHasItemReturnsFalseWhenDeferredItemIsExpired' => 'Testing expiration slows down the test suite',
+        'testDefaultLifeTime' => 'Testing expiration slows down the test suite',
+    ];
+
+    protected static $client;
+
+    public static function setUpBeforeClass()
+    {
+        if (!MemcachedAdapter::isSupported()) {
+            self::markTestSkipped('Extension memcached >=2.2.0 required.');
+        }
+        self::$client = AbstractAdapter::createConnection('memcached://'.getenv('MEMCACHED_HOST'), ['binary_protocol' => false]);
+        self::$client->get('foo');
+        $code = self::$client->getResultCode();
+
+        if (\Memcached::RES_SUCCESS !== $code && \Memcached::RES_NOTFOUND !== $code) {
+            self::markTestSkipped('Memcached error: '.strtolower(self::$client->getResultMessage()));
+        }
+    }
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        $client = $defaultLifetime ? AbstractAdapter::createConnection('memcached://'.getenv('MEMCACHED_HOST')) : self::$client;
+
+        return new MemcachedAdapter($client, str_replace('\\', '.', __CLASS__), $defaultLifetime);
+    }
+
+    public function testOptions()
+    {
+        $client = MemcachedAdapter::createConnection([], [
+            'libketama_compatible' => false,
+            'distribution' => 'modula',
+            'compression' => true,
+            'serializer' => 'php',
+            'hash' => 'md5',
+        ]);
+
+        $this->assertSame(\Memcached::SERIALIZER_PHP, $client->getOption(\Memcached::OPT_SERIALIZER));
+        $this->assertSame(\Memcached::HASH_MD5, $client->getOption(\Memcached::OPT_HASH));
+        $this->assertTrue($client->getOption(\Memcached::OPT_COMPRESSION));
+        $this->assertSame(0, $client->getOption(\Memcached::OPT_LIBKETAMA_COMPATIBLE));
+        $this->assertSame(\Memcached::DISTRIBUTION_MODULA, $client->getOption(\Memcached::OPT_DISTRIBUTION));
+    }
+
+    /**
+     * @dataProvider provideBadOptions
+     */
+    public function testBadOptions($name, $value)
+    {
+        $this->expectException('ErrorException');
+        $this->expectExceptionMessage('constant(): Couldn\'t find constant Memcached::');
+        MemcachedAdapter::createConnection([], [$name => $value]);
+    }
+
+    public function provideBadOptions()
+    {
+        return [
+            ['foo', 'bar'],
+            ['hash', 'zyx'],
+            ['serializer', 'zyx'],
+            ['distribution', 'zyx'],
+        ];
+    }
+
+    public function testDefaultOptions()
+    {
+        $this->assertTrue(MemcachedAdapter::isSupported());
+
+        $client = MemcachedAdapter::createConnection([]);
+
+        $this->assertTrue($client->getOption(\Memcached::OPT_COMPRESSION));
+        $this->assertSame(1, $client->getOption(\Memcached::OPT_BINARY_PROTOCOL));
+        $this->assertSame(1, $client->getOption(\Memcached::OPT_TCP_NODELAY));
+        $this->assertSame(1, $client->getOption(\Memcached::OPT_LIBKETAMA_COMPATIBLE));
+    }
+
+    public function testOptionSerializer()
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\CacheException');
+        $this->expectExceptionMessage('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
+        if (!\Memcached::HAVE_JSON) {
+            $this->markTestSkipped('Memcached::HAVE_JSON required');
+        }
+
+        new MemcachedAdapter(MemcachedAdapter::createConnection([], ['serializer' => 'json']));
+    }
+
+    /**
+     * @dataProvider provideServersSetting
+     */
+    public function testServersSetting($dsn, $host, $port)
+    {
+        $client1 = MemcachedAdapter::createConnection($dsn);
+        $client2 = MemcachedAdapter::createConnection([$dsn]);
+        $client3 = MemcachedAdapter::createConnection([[$host, $port]]);
+        $expect = [
+            'host' => $host,
+            'port' => $port,
+        ];
+
+        $f = function ($s) { return ['host' => $s['host'], 'port' => $s['port']]; };
+        $this->assertSame([$expect], array_map($f, $client1->getServerList()));
+        $this->assertSame([$expect], array_map($f, $client2->getServerList()));
+        $this->assertSame([$expect], array_map($f, $client3->getServerList()));
+    }
+
+    public function provideServersSetting()
+    {
+        yield [
+            'memcached://127.0.0.1/50',
+            '127.0.0.1',
+            11211,
+        ];
+        yield [
+            'memcached://localhost:11222?weight=25',
+            'localhost',
+            11222,
+        ];
+        if (filter_var(ini_get('memcached.use_sasl'), FILTER_VALIDATE_BOOLEAN)) {
+            yield [
+                'memcached://user:password@127.0.0.1?weight=50',
+                '127.0.0.1',
+                11211,
+            ];
+        }
+        yield [
+            'memcached:///var/run/memcached.sock?weight=25',
+            '/var/run/memcached.sock',
+            0,
+        ];
+        yield [
+            'memcached:///var/local/run/memcached.socket?weight=25',
+            '/var/local/run/memcached.socket',
+            0,
+        ];
+        if (filter_var(ini_get('memcached.use_sasl'), FILTER_VALIDATE_BOOLEAN)) {
+            yield [
+                'memcached://user:password@/var/local/run/memcached.socket?weight=25',
+                '/var/local/run/memcached.socket',
+                0,
+            ];
+        }
+    }
+
+    /**
+     * @dataProvider provideDsnWithOptions
+     */
+    public function testDsnWithOptions($dsn, array $options, array $expectedOptions)
+    {
+        $client = MemcachedAdapter::createConnection($dsn, $options);
+
+        foreach ($expectedOptions as $option => $expect) {
+            $this->assertSame($expect, $client->getOption($option));
+        }
+    }
+
+    public function provideDsnWithOptions()
+    {
+        if (!class_exists('\Memcached')) {
+            self::markTestSkipped('Extension memcached required.');
+        }
+
+        yield [
+            'memcached://localhost:11222?retry_timeout=10',
+            [\Memcached::OPT_RETRY_TIMEOUT => 8],
+            [\Memcached::OPT_RETRY_TIMEOUT => 10],
+        ];
+        yield [
+            'memcached://localhost:11222?socket_recv_size=1&socket_send_size=2',
+            [\Memcached::OPT_RETRY_TIMEOUT => 8],
+            [\Memcached::OPT_SOCKET_RECV_SIZE => 1, \Memcached::OPT_SOCKET_SEND_SIZE => 2, \Memcached::OPT_RETRY_TIMEOUT => 8],
+        ];
+    }
+
+    public function testClear()
+    {
+        $this->assertTrue($this->createCachePool()->clear());
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/NamespacedProxyAdapterTest.php

@@ -0,0 +1,26 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\Adapter\ProxyAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class NamespacedProxyAdapterTest extends ProxyAdapterTest
+{
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new ProxyAdapter(new ArrayAdapter($defaultLifetime), 'foo', $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/NullAdapterTest.php

@@ -0,0 +1,128 @@
+<?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\Tests\Adapter;
+
+use PHPUnit\Framework\TestCase;
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\Adapter\NullAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class NullAdapterTest extends TestCase
+{
+    public function createCachePool()
+    {
+        return new NullAdapter();
+    }
+
+    public function testGetItem()
+    {
+        $adapter = $this->createCachePool();
+
+        $item = $adapter->getItem('key');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get(), "Item's value must be null when isHit is false.");
+    }
+
+    public function testHasItem()
+    {
+        $this->assertFalse($this->createCachePool()->hasItem('key'));
+    }
+
+    public function testGetItems()
+    {
+        $adapter = $this->createCachePool();
+
+        $keys = ['foo', 'bar', 'baz', 'biz'];
+
+        /** @var CacheItemInterface[] $items */
+        $items = $adapter->getItems($keys);
+        $count = 0;
+
+        foreach ($items as $key => $item) {
+            $itemKey = $item->getKey();
+
+            $this->assertEquals($itemKey, $key, 'Keys must be preserved when fetching multiple items');
+            $this->assertContains($key, $keys, 'Cache key can not change.');
+            $this->assertFalse($item->isHit());
+
+            // Remove $key for $keys
+            foreach ($keys as $k => $v) {
+                if ($v === $key) {
+                    unset($keys[$k]);
+                }
+            }
+
+            ++$count;
+        }
+
+        $this->assertSame(4, $count);
+    }
+
+    public function testIsHit()
+    {
+        $adapter = $this->createCachePool();
+
+        $item = $adapter->getItem('key');
+        $this->assertFalse($item->isHit());
+    }
+
+    public function testClear()
+    {
+        $this->assertTrue($this->createCachePool()->clear());
+    }
+
+    public function testDeleteItem()
+    {
+        $this->assertTrue($this->createCachePool()->deleteItem('key'));
+    }
+
+    public function testDeleteItems()
+    {
+        $this->assertTrue($this->createCachePool()->deleteItems(['key', 'foo', 'bar']));
+    }
+
+    public function testSave()
+    {
+        $adapter = $this->createCachePool();
+
+        $item = $adapter->getItem('key');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get(), "Item's value must be null when isHit is false.");
+
+        $this->assertFalse($adapter->save($item));
+    }
+
+    public function testDeferredSave()
+    {
+        $adapter = $this->createCachePool();
+
+        $item = $adapter->getItem('key');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get(), "Item's value must be null when isHit is false.");
+
+        $this->assertFalse($adapter->saveDeferred($item));
+    }
+
+    public function testCommit()
+    {
+        $adapter = $this->createCachePool();
+
+        $item = $adapter->getItem('key');
+        $this->assertFalse($item->isHit());
+        $this->assertNull($item->get(), "Item's value must be null when isHit is false.");
+
+        $this->assertFalse($adapter->saveDeferred($item));
+        $this->assertFalse($this->createCachePool()->commit());
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PdoAdapterTest.php

@@ -0,0 +1,73 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\PdoAdapter;
+use Symfony\Component\Cache\Tests\Traits\PdoPruneableTrait;
+
+/**
+ * @group time-sensitive
+ */
+class PdoAdapterTest extends AdapterTestCase
+{
+    use PdoPruneableTrait;
+
+    protected static $dbFile;
+
+    public static function setUpBeforeClass()
+    {
+        if (!\extension_loaded('pdo_sqlite')) {
+            self::markTestSkipped('Extension pdo_sqlite required.');
+        }
+
+        self::$dbFile = tempnam(sys_get_temp_dir(), 'sf_sqlite_cache');
+
+        $pool = new PdoAdapter('sqlite:'.self::$dbFile);
+        $pool->createTable();
+    }
+
+    public static function tearDownAfterClass()
+    {
+        @unlink(self::$dbFile);
+    }
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new PdoAdapter('sqlite:'.self::$dbFile, 'ns', $defaultLifetime);
+    }
+
+    public function testCleanupExpiredItems()
+    {
+        $pdo = new \PDO('sqlite:'.self::$dbFile);
+
+        $getCacheItemCount = function () use ($pdo) {
+            return (int) $pdo->query('SELECT COUNT(*) FROM cache_items')->fetch(\PDO::FETCH_COLUMN);
+        };
+
+        $this->assertSame(0, $getCacheItemCount());
+
+        $cache = $this->createCachePool();
+
+        $item = $cache->getItem('some_nice_key');
+        $item->expiresAfter(1);
+        $item->set(1);
+
+        $cache->save($item);
+        $this->assertSame(1, $getCacheItemCount());
+
+        sleep(2);
+
+        $newItem = $cache->getItem($item->getKey());
+        $this->assertFalse($newItem->isHit());
+        $this->assertSame(0, $getCacheItemCount(), 'PDOAdapter must clean up expired items');
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PdoDbalAdapterTest.php

@@ -0,0 +1,48 @@
+<?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\Tests\Adapter;
+
+use Doctrine\DBAL\DriverManager;
+use Symfony\Component\Cache\Adapter\PdoAdapter;
+use Symfony\Component\Cache\Tests\Traits\PdoPruneableTrait;
+
+/**
+ * @group time-sensitive
+ */
+class PdoDbalAdapterTest extends AdapterTestCase
+{
+    use PdoPruneableTrait;
+
+    protected static $dbFile;
+
+    public static function setUpBeforeClass()
+    {
+        if (!\extension_loaded('pdo_sqlite')) {
+            self::markTestSkipped('Extension pdo_sqlite required.');
+        }
+
+        self::$dbFile = tempnam(sys_get_temp_dir(), 'sf_sqlite_cache');
+
+        $pool = new PdoAdapter(DriverManager::getConnection(['driver' => 'pdo_sqlite', 'path' => self::$dbFile]));
+        $pool->createTable();
+    }
+
+    public static function tearDownAfterClass()
+    {
+        @unlink(self::$dbFile);
+    }
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new PdoAdapter(DriverManager::getConnection(['driver' => 'pdo_sqlite', 'path' => self::$dbFile]), '', $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PhpArrayAdapterTest.php

@@ -0,0 +1,133 @@
+<?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\Tests\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\Adapter\NullAdapter;
+use Symfony\Component\Cache\Adapter\PhpArrayAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class PhpArrayAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testBasicUsage' => 'PhpArrayAdapter is read-only.',
+        'testBasicUsageWithLongKey' => 'PhpArrayAdapter is read-only.',
+        'testClear' => 'PhpArrayAdapter is read-only.',
+        'testClearWithDeferredItems' => 'PhpArrayAdapter is read-only.',
+        'testDeleteItem' => 'PhpArrayAdapter is read-only.',
+        'testSaveExpired' => 'PhpArrayAdapter is read-only.',
+        'testSaveWithoutExpire' => 'PhpArrayAdapter is read-only.',
+        'testDeferredSave' => 'PhpArrayAdapter is read-only.',
+        'testDeferredSaveWithoutCommit' => 'PhpArrayAdapter is read-only.',
+        'testDeleteItems' => 'PhpArrayAdapter is read-only.',
+        'testDeleteDeferredItem' => 'PhpArrayAdapter is read-only.',
+        'testCommit' => 'PhpArrayAdapter is read-only.',
+        'testSaveDeferredWhenChangingValues' => 'PhpArrayAdapter is read-only.',
+        'testSaveDeferredOverwrite' => 'PhpArrayAdapter is read-only.',
+        'testIsHitDeferred' => 'PhpArrayAdapter is read-only.',
+
+        'testExpiresAt' => 'PhpArrayAdapter does not support expiration.',
+        'testExpiresAtWithNull' => 'PhpArrayAdapter does not support expiration.',
+        'testExpiresAfterWithNull' => 'PhpArrayAdapter does not support expiration.',
+        'testDeferredExpired' => 'PhpArrayAdapter does not support expiration.',
+        'testExpiration' => 'PhpArrayAdapter does not support expiration.',
+
+        'testGetItemInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testGetItemsInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testHasItemInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testDeleteItemInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testDeleteItemsInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+
+        'testDefaultLifeTime' => 'PhpArrayAdapter does not allow configuring a default lifetime.',
+        'testPrune' => 'PhpArrayAdapter just proxies',
+    ];
+
+    protected static $file;
+
+    public static function setUpBeforeClass()
+    {
+        self::$file = sys_get_temp_dir().'/symfony-cache/php-array-adapter-test.php';
+    }
+
+    protected function tearDown()
+    {
+        if (file_exists(sys_get_temp_dir().'/symfony-cache')) {
+            FilesystemAdapterTest::rmdir(sys_get_temp_dir().'/symfony-cache');
+        }
+    }
+
+    public function createCachePool()
+    {
+        return new PhpArrayAdapterWrapper(self::$file, new NullAdapter());
+    }
+
+    public function testStore()
+    {
+        $arrayWithRefs = [];
+        $arrayWithRefs[0] = 123;
+        $arrayWithRefs[1] = &$arrayWithRefs[0];
+
+        $object = (object) [
+            'foo' => 'bar',
+            'foo2' => 'bar2',
+        ];
+
+        $expected = [
+            'null' => null,
+            'serializedString' => serialize($object),
+            'arrayWithRefs' => $arrayWithRefs,
+            'object' => $object,
+            'arrayWithObject' => ['bar' => $object],
+        ];
+
+        $adapter = $this->createCachePool();
+        $adapter->warmUp($expected);
+
+        foreach ($expected as $key => $value) {
+            $this->assertSame(serialize($value), serialize($adapter->getItem($key)->get()), 'Warm up should create a PHP file that OPCache can load in memory');
+        }
+    }
+
+    public function testStoredFile()
+    {
+        $expected = [
+            'integer' => 42,
+            'float' => 42.42,
+            'boolean' => true,
+            'array_simple' => ['foo', 'bar'],
+            'array_associative' => ['foo' => 'bar', 'foo2' => 'bar2'],
+        ];
+
+        $adapter = $this->createCachePool();
+        $adapter->warmUp($expected);
+
+        $values = eval(substr(file_get_contents(self::$file), 6));
+
+        $this->assertSame($expected, $values, 'Warm up should create a PHP file that OPCache can load in memory');
+    }
+}
+
+class PhpArrayAdapterWrapper extends PhpArrayAdapter
+{
+    public function save(CacheItemInterface $item)
+    {
+        \call_user_func(\Closure::bind(function () use ($item) {
+            $this->values[$item->getKey()] = $item->get();
+            $this->warmUp($this->values);
+            $this->values = eval(substr(file_get_contents($this->file), 6));
+        }, $this, PhpArrayAdapter::class));
+
+        return true;
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PhpArrayAdapterWithFallbackTest.php

@@ -0,0 +1,49 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+use Symfony\Component\Cache\Adapter\PhpArrayAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class PhpArrayAdapterWithFallbackTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testGetItemInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testGetItemsInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testHasItemInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testDeleteItemInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testDeleteItemsInvalidKeys' => 'PhpArrayAdapter does not throw exceptions on invalid key.',
+        'testPrune' => 'PhpArrayAdapter just proxies',
+    ];
+
+    protected static $file;
+
+    public static function setUpBeforeClass()
+    {
+        self::$file = sys_get_temp_dir().'/symfony-cache/php-array-adapter-test.php';
+    }
+
+    protected function tearDown()
+    {
+        if (file_exists(sys_get_temp_dir().'/symfony-cache')) {
+            FilesystemAdapterTest::rmdir(sys_get_temp_dir().'/symfony-cache');
+        }
+    }
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new PhpArrayAdapter(self::$file, new FilesystemAdapter('php-array-fallback', $defaultLifetime));
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PhpFilesAdapterTest.php

@@ -0,0 +1,47 @@
+<?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\Tests\Adapter;
+
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\Adapter\PhpFilesAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class PhpFilesAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testDefaultLifeTime' => 'PhpFilesAdapter does not allow configuring a default lifetime.',
+    ];
+
+    public function createCachePool()
+    {
+        if (!PhpFilesAdapter::isSupported()) {
+            $this->markTestSkipped('OPcache extension is not enabled.');
+        }
+
+        return new PhpFilesAdapter('sf-cache');
+    }
+
+    public static function tearDownAfterClass()
+    {
+        FilesystemAdapterTest::rmdir(sys_get_temp_dir().'/symfony-cache');
+    }
+
+    protected function isPruned(CacheItemPoolInterface $cache, $name)
+    {
+        $getFileMethod = (new \ReflectionObject($cache))->getMethod('getFile');
+        $getFileMethod->setAccessible(true);
+
+        return !file_exists($getFileMethod->invoke($cache, $name));
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PredisAdapterTest.php

@@ -0,0 +1,53 @@
+<?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\Tests\Adapter;
+
+use Predis\Connection\StreamConnection;
+use Symfony\Component\Cache\Adapter\RedisAdapter;
+
+class PredisAdapterTest extends AbstractRedisAdapterTest
+{
+    public static function setUpBeforeClass()
+    {
+        parent::setUpBeforeClass();
+        self::$redis = new \Predis\Client(['host' => getenv('REDIS_HOST')]);
+    }
+
+    public function testCreateConnection()
+    {
+        $redisHost = getenv('REDIS_HOST');
+
+        $redis = RedisAdapter::createConnection('redis://'.$redisHost.'/1', ['class' => \Predis\Client::class, 'timeout' => 3]);
+        $this->assertInstanceOf(\Predis\Client::class, $redis);
+
+        $connection = $redis->getConnection();
+        $this->assertInstanceOf(StreamConnection::class, $connection);
+
+        $params = [
+            'scheme' => 'tcp',
+            'host' => $redisHost,
+            'path' => '',
+            'dbindex' => '1',
+            'port' => 6379,
+            'class' => 'Predis\Client',
+            'timeout' => 3,
+            'persistent' => 0,
+            'persistent_id' => null,
+            'read_timeout' => 0,
+            'retry_interval' => 0,
+            'lazy' => false,
+            'database' => '1',
+            'password' => null,
+        ];
+        $this->assertSame($params, $connection->getParameters()->toArray());
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PredisClusterAdapterTest.php

@@ -0,0 +1,26 @@
+<?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\Tests\Adapter;
+
+class PredisClusterAdapterTest extends AbstractRedisAdapterTest
+{
+    public static function setUpBeforeClass()
+    {
+        parent::setUpBeforeClass();
+        self::$redis = new \Predis\Client([['host' => getenv('REDIS_HOST')]]);
+    }
+
+    public static function tearDownAfterClass()
+    {
+        self::$redis = null;
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/PredisRedisClusterAdapterTest.php

@@ -0,0 +1,28 @@
+<?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\Tests\Adapter;
+
+class PredisRedisClusterAdapterTest extends AbstractRedisAdapterTest
+{
+    public static function setUpBeforeClass()
+    {
+        if (!$hosts = getenv('REDIS_CLUSTER_HOSTS')) {
+            self::markTestSkipped('REDIS_CLUSTER_HOSTS env var is not defined.');
+        }
+        self::$redis = new \Predis\Client(explode(' ', $hosts), ['cluster' => 'redis']);
+    }
+
+    public static function tearDownAfterClass()
+    {
+        self::$redis = null;
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/ProxyAdapterTest.php

@@ -0,0 +1,69 @@
+<?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\Tests\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\Adapter\ProxyAdapter;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * @group time-sensitive
+ */
+class ProxyAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testDeferredSaveWithoutCommit' => 'Assumes a shared cache which ArrayAdapter is not.',
+        'testSaveWithoutExpire' => 'Assumes a shared cache which ArrayAdapter is not.',
+        'testPrune' => 'ProxyAdapter just proxies',
+    ];
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new ProxyAdapter(new ArrayAdapter(), '', $defaultLifetime);
+    }
+
+    public function testProxyfiedItem()
+    {
+        $this->expectException('Exception');
+        $this->expectExceptionMessage('OK bar');
+        $item = new CacheItem();
+        $pool = new ProxyAdapter(new TestingArrayAdapter($item));
+
+        $proxyItem = $pool->getItem('foo');
+
+        $this->assertNotSame($item, $proxyItem);
+        $pool->save($proxyItem->set('bar'));
+    }
+}
+
+class TestingArrayAdapter extends ArrayAdapter
+{
+    private $item;
+
+    public function __construct(CacheItemInterface $item)
+    {
+        $this->item = $item;
+    }
+
+    public function getItem($key)
+    {
+        return $this->item;
+    }
+
+    public function save(CacheItemInterface $item)
+    {
+        if ($item === $this->item) {
+            throw new \Exception('OK '.$item->get());
+        }
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/RedisAdapterTest.php

@@ -0,0 +1,92 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\AbstractAdapter;
+use Symfony\Component\Cache\Adapter\RedisAdapter;
+use Symfony\Component\Cache\Traits\RedisProxy;
+
+class RedisAdapterTest extends AbstractRedisAdapterTest
+{
+    public static function setUpBeforeClass()
+    {
+        parent::setUpBeforeClass();
+        self::$redis = AbstractAdapter::createConnection('redis://'.getenv('REDIS_HOST'), ['lazy' => true]);
+    }
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        $adapter = parent::createCachePool($defaultLifetime);
+        $this->assertInstanceOf(RedisProxy::class, self::$redis);
+
+        return $adapter;
+    }
+
+    public function testCreateConnection()
+    {
+        $redisHost = getenv('REDIS_HOST');
+
+        $redis = RedisAdapter::createConnection('redis://'.$redisHost);
+        $this->assertInstanceOf(\Redis::class, $redis);
+        $this->assertTrue($redis->isConnected());
+        $this->assertSame(0, $redis->getDbNum());
+
+        $redis = RedisAdapter::createConnection('redis://'.$redisHost.'/2');
+        $this->assertSame(2, $redis->getDbNum());
+
+        $redis = RedisAdapter::createConnection('redis://'.$redisHost, ['timeout' => 3]);
+        $this->assertEquals(3, $redis->getTimeout());
+
+        $redis = RedisAdapter::createConnection('redis://'.$redisHost.'?timeout=4');
+        $this->assertEquals(4, $redis->getTimeout());
+
+        $redis = RedisAdapter::createConnection('redis://'.$redisHost, ['read_timeout' => 5]);
+        $this->assertEquals(5, $redis->getReadTimeout());
+    }
+
+    /**
+     * @dataProvider provideFailedCreateConnection
+     */
+    public function testFailedCreateConnection($dsn)
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('Redis connection failed');
+        RedisAdapter::createConnection($dsn);
+    }
+
+    public function provideFailedCreateConnection()
+    {
+        return [
+            ['redis://localhost:1234'],
+            ['redis://foo@localhost'],
+            ['redis://localhost/123'],
+        ];
+    }
+
+    /**
+     * @dataProvider provideInvalidCreateConnection
+     */
+    public function testInvalidCreateConnection($dsn)
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('Invalid Redis DSN');
+        RedisAdapter::createConnection($dsn);
+    }
+
+    public function provideInvalidCreateConnection()
+    {
+        return [
+            ['foo://localhost'],
+            ['redis://'],
+        ];
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/RedisArrayAdapterTest.php

@@ -0,0 +1,24 @@
+<?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\Tests\Adapter;
+
+class RedisArrayAdapterTest extends AbstractRedisAdapterTest
+{
+    public static function setUpBeforeClass()
+    {
+        parent::setupBeforeClass();
+        if (!class_exists('RedisArray')) {
+            self::markTestSkipped('The RedisArray class is required.');
+        }
+        self::$redis = new \RedisArray([getenv('REDIS_HOST')], ['lazy_connect' => true]);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/RedisClusterAdapterTest.php

@@ -0,0 +1,27 @@
+<?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\Tests\Adapter;
+
+class RedisClusterAdapterTest extends AbstractRedisAdapterTest
+{
+    public static function setUpBeforeClass()
+    {
+        if (!class_exists('RedisCluster')) {
+            self::markTestSkipped('The RedisCluster class is required.');
+        }
+        if (!$hosts = getenv('REDIS_CLUSTER_HOSTS')) {
+            self::markTestSkipped('REDIS_CLUSTER_HOSTS env var is not defined.');
+        }
+
+        self::$redis = new \RedisCluster(null, explode(' ', $hosts));
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/SimpleCacheAdapterTest.php

@@ -0,0 +1,41 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\SimpleCacheAdapter;
+use Symfony\Component\Cache\Simple\ArrayCache;
+use Symfony\Component\Cache\Simple\FilesystemCache;
+
+/**
+ * @group time-sensitive
+ */
+class SimpleCacheAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testPrune' => 'SimpleCache just proxies',
+    ];
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new SimpleCacheAdapter(new FilesystemCache(), '', $defaultLifetime);
+    }
+
+    public function testValidCacheKeyWithNamespace()
+    {
+        $cache = new SimpleCacheAdapter(new ArrayCache(), 'some_namespace', 0);
+        $item = $cache->getItem('my_key');
+        $item->set('someValue');
+        $cache->save($item);
+
+        $this->assertTrue($cache->getItem('my_key')->isHit(), 'Stored item is successfully retrieved.');
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/TagAwareAdapterTest.php

@@ -0,0 +1,318 @@
+<?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\Tests\Adapter;
+
+use PHPUnit\Framework\MockObject\MockObject;
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+use Symfony\Component\Cache\Adapter\TagAwareAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class TagAwareAdapterTest extends AdapterTestCase
+{
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new TagAwareAdapter(new FilesystemAdapter('', $defaultLifetime));
+    }
+
+    public static function tearDownAfterClass()
+    {
+        FilesystemAdapterTest::rmdir(sys_get_temp_dir().'/symfony-cache');
+    }
+
+    public function testInvalidTag()
+    {
+        $this->expectException('Psr\Cache\InvalidArgumentException');
+        $pool = $this->createCachePool();
+        $item = $pool->getItem('foo');
+        $item->tag(':');
+    }
+
+    public function testInvalidateTags()
+    {
+        $pool = $this->createCachePool();
+
+        $i0 = $pool->getItem('i0');
+        $i1 = $pool->getItem('i1');
+        $i2 = $pool->getItem('i2');
+        $i3 = $pool->getItem('i3');
+        $foo = $pool->getItem('foo');
+
+        $pool->save($i0->tag('bar'));
+        $pool->save($i1->tag('foo'));
+        $pool->save($i2->tag('foo')->tag('bar'));
+        $pool->save($i3->tag('foo')->tag('baz'));
+        $pool->save($foo);
+
+        $pool->invalidateTags(['bar']);
+
+        $this->assertFalse($pool->getItem('i0')->isHit());
+        $this->assertTrue($pool->getItem('i1')->isHit());
+        $this->assertFalse($pool->getItem('i2')->isHit());
+        $this->assertTrue($pool->getItem('i3')->isHit());
+        $this->assertTrue($pool->getItem('foo')->isHit());
+
+        $pool->invalidateTags(['foo']);
+
+        $this->assertFalse($pool->getItem('i1')->isHit());
+        $this->assertFalse($pool->getItem('i3')->isHit());
+        $this->assertTrue($pool->getItem('foo')->isHit());
+
+        $anotherPoolInstance = $this->createCachePool();
+
+        $this->assertFalse($anotherPoolInstance->getItem('i1')->isHit());
+        $this->assertFalse($anotherPoolInstance->getItem('i3')->isHit());
+        $this->assertTrue($anotherPoolInstance->getItem('foo')->isHit());
+    }
+
+    public function testInvalidateCommits()
+    {
+        $pool1 = $this->createCachePool();
+
+        $foo = $pool1->getItem('foo');
+        $foo->tag('tag');
+
+        $pool1->saveDeferred($foo->set('foo'));
+        $pool1->invalidateTags(['tag']);
+
+        $pool2 = $this->createCachePool();
+        $foo = $pool2->getItem('foo');
+
+        $this->assertTrue($foo->isHit());
+    }
+
+    public function testTagsAreCleanedOnSave()
+    {
+        $pool = $this->createCachePool();
+
+        $i = $pool->getItem('k');
+        $pool->save($i->tag('foo'));
+
+        $i = $pool->getItem('k');
+        $pool->save($i->tag('bar'));
+
+        $pool->invalidateTags(['foo']);
+        $this->assertTrue($pool->getItem('k')->isHit());
+    }
+
+    public function testTagsAreCleanedOnDelete()
+    {
+        $pool = $this->createCachePool();
+
+        $i = $pool->getItem('k');
+        $pool->save($i->tag('foo'));
+        $pool->deleteItem('k');
+
+        $pool->save($pool->getItem('k'));
+        $pool->invalidateTags(['foo']);
+
+        $this->assertTrue($pool->getItem('k')->isHit());
+    }
+
+    public function testTagItemExpiry()
+    {
+        $pool = $this->createCachePool(10);
+
+        $item = $pool->getItem('foo');
+        $item->tag(['baz']);
+        $item->expiresAfter(100);
+
+        $pool->save($item);
+        $pool->invalidateTags(['baz']);
+        $this->assertFalse($pool->getItem('foo')->isHit());
+
+        sleep(20);
+
+        $this->assertFalse($pool->getItem('foo')->isHit());
+    }
+
+    public function testGetPreviousTags()
+    {
+        $pool = $this->createCachePool();
+
+        $i = $pool->getItem('k');
+        $pool->save($i->tag('foo'));
+
+        $i = $pool->getItem('k');
+        $this->assertSame(['foo' => 'foo'], $i->getPreviousTags());
+    }
+
+    public function testPrune()
+    {
+        $cache = new TagAwareAdapter($this->getPruneableMock());
+        $this->assertTrue($cache->prune());
+
+        $cache = new TagAwareAdapter($this->getNonPruneableMock());
+        $this->assertFalse($cache->prune());
+
+        $cache = new TagAwareAdapter($this->getFailingPruneableMock());
+        $this->assertFalse($cache->prune());
+    }
+
+    public function testKnownTagVersionsTtl()
+    {
+        $itemsPool = new FilesystemAdapter('', 10);
+        $tagsPool = $this
+            ->getMockBuilder(AdapterInterface::class)
+            ->getMock();
+
+        $pool = new TagAwareAdapter($itemsPool, $tagsPool, 10);
+
+        $item = $pool->getItem('foo');
+        $item->tag(['baz']);
+        $item->expiresAfter(100);
+
+        $tag = $this->getMockBuilder(CacheItemInterface::class)->getMock();
+        $tag->expects(self::exactly(2))->method('get')->willReturn(10);
+
+        $tagsPool->expects(self::exactly(2))->method('getItems')->willReturn([
+            'baz'.TagAwareAdapter::TAGS_PREFIX => $tag,
+        ]);
+
+        $pool->save($item);
+        $this->assertTrue($pool->getItem('foo')->isHit());
+        $this->assertTrue($pool->getItem('foo')->isHit());
+
+        sleep(20);
+
+        $this->assertTrue($pool->getItem('foo')->isHit());
+
+        sleep(5);
+
+        $this->assertTrue($pool->getItem('foo')->isHit());
+    }
+
+    public function testTagEntryIsCreatedForItemWithoutTags()
+    {
+        $pool = $this->createCachePool();
+
+        $itemKey = 'foo';
+        $item = $pool->getItem($itemKey);
+        $pool->save($item);
+
+        $adapter = new FilesystemAdapter();
+        $this->assertTrue($adapter->hasItem(TagAwareAdapter::TAGS_PREFIX.$itemKey));
+    }
+
+    public function testHasItemReturnsFalseWhenPoolDoesNotHaveItemTags()
+    {
+        $pool = $this->createCachePool();
+
+        $itemKey = 'foo';
+        $item = $pool->getItem($itemKey);
+        $pool->save($item);
+
+        $anotherPool = $this->createCachePool();
+
+        $adapter = new FilesystemAdapter();
+        $adapter->deleteItem(TagAwareAdapter::TAGS_PREFIX.$itemKey); //simulate item losing tags pair
+
+        $this->assertFalse($anotherPool->hasItem($itemKey));
+    }
+
+    public function testGetItemReturnsCacheMissWhenPoolDoesNotHaveItemTags()
+    {
+        $pool = $this->createCachePool();
+
+        $itemKey = 'foo';
+        $item = $pool->getItem($itemKey);
+        $pool->save($item);
+
+        $anotherPool = $this->createCachePool();
+
+        $adapter = new FilesystemAdapter();
+        $adapter->deleteItem(TagAwareAdapter::TAGS_PREFIX.$itemKey); //simulate item losing tags pair
+
+        $item = $anotherPool->getItem($itemKey);
+        $this->assertFalse($item->isHit());
+    }
+
+    public function testHasItemReturnsFalseWhenPoolDoesNotHaveItemAndOnlyHasTags()
+    {
+        $pool = $this->createCachePool();
+
+        $itemKey = 'foo';
+        $item = $pool->getItem($itemKey);
+        $pool->save($item);
+
+        $anotherPool = $this->createCachePool();
+
+        $adapter = new FilesystemAdapter();
+        $adapter->deleteItem($itemKey); //simulate losing item but keeping tags
+
+        $this->assertFalse($anotherPool->hasItem($itemKey));
+    }
+
+    public function testGetItemReturnsCacheMissWhenPoolDoesNotHaveItemAndOnlyHasTags()
+    {
+        $pool = $this->createCachePool();
+
+        $itemKey = 'foo';
+        $item = $pool->getItem($itemKey);
+        $pool->save($item);
+
+        $anotherPool = $this->createCachePool();
+
+        $adapter = new FilesystemAdapter();
+        $adapter->deleteItem($itemKey); //simulate losing item but keeping tags
+
+        $item = $anotherPool->getItem($itemKey);
+        $this->assertFalse($item->isHit());
+    }
+
+    /**
+     * @return MockObject|PruneableCacheInterface
+     */
+    private function getPruneableMock()
+    {
+        $pruneable = $this
+            ->getMockBuilder(PruneableCacheInterface::class)
+            ->getMock();
+
+        $pruneable
+            ->expects($this->atLeastOnce())
+            ->method('prune')
+            ->willReturn(true);
+
+        return $pruneable;
+    }
+
+    /**
+     * @return MockObject|PruneableCacheInterface
+     */
+    private function getFailingPruneableMock()
+    {
+        $pruneable = $this
+            ->getMockBuilder(PruneableCacheInterface::class)
+            ->getMock();
+
+        $pruneable
+            ->expects($this->atLeastOnce())
+            ->method('prune')
+            ->willReturn(false);
+
+        return $pruneable;
+    }
+
+    /**
+     * @return MockObject|AdapterInterface
+     */
+    private function getNonPruneableMock()
+    {
+        return $this
+            ->getMockBuilder(AdapterInterface::class)
+            ->getMock();
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/TagAwareAndProxyAdapterIntegrationTest.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Symfony\Component\Cache\Tests\Adapter;
+
+use PHPUnit\Framework\TestCase;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\Adapter\ProxyAdapter;
+use Symfony\Component\Cache\Adapter\TagAwareAdapter;
+use Symfony\Component\Cache\Tests\Fixtures\ExternalAdapter;
+
+class TagAwareAndProxyAdapterIntegrationTest extends TestCase
+{
+    /**
+     * @dataProvider dataProvider
+     */
+    public function testIntegrationUsingProxiedAdapter(CacheItemPoolInterface $proxiedAdapter)
+    {
+        $cache = new TagAwareAdapter(new ProxyAdapter($proxiedAdapter));
+
+        $item = $cache->getItem('foo');
+        $item->tag(['tag1', 'tag2']);
+        $item->set('bar');
+        $cache->save($item);
+
+        $this->assertSame('bar', $cache->getItem('foo')->get());
+    }
+
+    public function dataProvider()
+    {
+        return [
+            [new ArrayAdapter()],
+            // also testing with a non-AdapterInterface implementation
+            // because the ProxyAdapter behaves slightly different for those
+            [new ExternalAdapter()],
+        ];
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/TraceableAdapterTest.php

@@ -0,0 +1,191 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+use Symfony\Component\Cache\Adapter\TraceableAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class TraceableAdapterTest extends AdapterTestCase
+{
+    protected $skippedTests = [
+        'testPrune' => 'TraceableAdapter just proxies',
+    ];
+
+    public function createCachePool($defaultLifetime = 0)
+    {
+        return new TraceableAdapter(new FilesystemAdapter('', $defaultLifetime));
+    }
+
+    public function testGetItemMissTrace()
+    {
+        $pool = $this->createCachePool();
+        $pool->getItem('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('getItem', $call->name);
+        $this->assertSame(['k' => false], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(1, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testGetItemHitTrace()
+    {
+        $pool = $this->createCachePool();
+        $item = $pool->getItem('k')->set('foo');
+        $pool->save($item);
+        $pool->getItem('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(3, $calls);
+
+        $call = $calls[2];
+        $this->assertSame(1, $call->hits);
+        $this->assertSame(0, $call->misses);
+    }
+
+    public function testGetItemsMissTrace()
+    {
+        $pool = $this->createCachePool();
+        $arg = ['k0', 'k1'];
+        $items = $pool->getItems($arg);
+        foreach ($items as $item) {
+        }
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('getItems', $call->name);
+        $this->assertSame(['k0' => false, 'k1' => false], $call->result);
+        $this->assertSame(2, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testHasItemMissTrace()
+    {
+        $pool = $this->createCachePool();
+        $pool->hasItem('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('hasItem', $call->name);
+        $this->assertSame(['k' => false], $call->result);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testHasItemHitTrace()
+    {
+        $pool = $this->createCachePool();
+        $item = $pool->getItem('k')->set('foo');
+        $pool->save($item);
+        $pool->hasItem('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(3, $calls);
+
+        $call = $calls[2];
+        $this->assertSame('hasItem', $call->name);
+        $this->assertSame(['k' => true], $call->result);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testDeleteItemTrace()
+    {
+        $pool = $this->createCachePool();
+        $pool->deleteItem('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('deleteItem', $call->name);
+        $this->assertSame(['k' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testDeleteItemsTrace()
+    {
+        $pool = $this->createCachePool();
+        $arg = ['k0', 'k1'];
+        $pool->deleteItems($arg);
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('deleteItems', $call->name);
+        $this->assertSame(['keys' => $arg, 'result' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testSaveTrace()
+    {
+        $pool = $this->createCachePool();
+        $item = $pool->getItem('k')->set('foo');
+        $pool->save($item);
+        $calls = $pool->getCalls();
+        $this->assertCount(2, $calls);
+
+        $call = $calls[1];
+        $this->assertSame('save', $call->name);
+        $this->assertSame(['k' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testSaveDeferredTrace()
+    {
+        $pool = $this->createCachePool();
+        $item = $pool->getItem('k')->set('foo');
+        $pool->saveDeferred($item);
+        $calls = $pool->getCalls();
+        $this->assertCount(2, $calls);
+
+        $call = $calls[1];
+        $this->assertSame('saveDeferred', $call->name);
+        $this->assertSame(['k' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testCommitTrace()
+    {
+        $pool = $this->createCachePool();
+        $pool->commit();
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('commit', $call->name);
+        $this->assertTrue($call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+}

core/vendor/symfony/cache/Tests/Adapter/TraceableTagAwareAdapterTest.php

@@ -0,0 +1,37 @@
+<?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\Tests\Adapter;
+
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+use Symfony\Component\Cache\Adapter\TagAwareAdapter;
+use Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter;
+
+/**
+ * @group time-sensitive
+ */
+class TraceableTagAwareAdapterTest extends TraceableAdapterTest
+{
+    public function testInvalidateTags()
+    {
+        $pool = new TraceableTagAwareAdapter(new TagAwareAdapter(new FilesystemAdapter()));
+        $pool->invalidateTags(['foo']);
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('invalidateTags', $call->name);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+}

core/vendor/symfony/cache/Tests/CacheItemTest.php

@@ -0,0 +1,77 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Cache\CacheItem;
+
+class CacheItemTest extends TestCase
+{
+    public function testValidKey()
+    {
+        $this->assertSame('foo', CacheItem::validateKey('foo'));
+    }
+
+    /**
+     * @dataProvider provideInvalidKey
+     */
+    public function testInvalidKey($key)
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('Cache key');
+        CacheItem::validateKey($key);
+    }
+
+    public function provideInvalidKey()
+    {
+        return [
+            [''],
+            ['{'],
+            ['}'],
+            ['('],
+            [')'],
+            ['/'],
+            ['\\'],
+            ['@'],
+            [':'],
+            [true],
+            [null],
+            [1],
+            [1.1],
+            [[[]]],
+            [new \Exception('foo')],
+        ];
+    }
+
+    public function testTag()
+    {
+        $item = new CacheItem();
+
+        $this->assertSame($item, $item->tag('foo'));
+        $this->assertSame($item, $item->tag(['bar', 'baz']));
+
+        \call_user_func(\Closure::bind(function () use ($item) {
+            $this->assertSame(['foo' => 'foo', 'bar' => 'bar', 'baz' => 'baz'], $item->tags);
+        }, $this, CacheItem::class));
+    }
+
+    /**
+     * @dataProvider provideInvalidKey
+     */
+    public function testInvalidTag($tag)
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('Cache tag');
+        $item = new CacheItem();
+        $item->tag($tag);
+    }
+}

core/vendor/symfony/cache/Tests/DoctrineProviderTest.php

@@ -0,0 +1,45 @@
+<?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\Tests;
+
+use Doctrine\Common\Cache\CacheProvider;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\DoctrineProvider;
+
+class DoctrineProviderTest extends TestCase
+{
+    public function testProvider()
+    {
+        $pool = new ArrayAdapter();
+        $cache = new DoctrineProvider($pool);
+
+        $this->assertInstanceOf(CacheProvider::class, $cache);
+
+        $key = '{}()/\@:';
+
+        $this->assertTrue($cache->delete($key));
+        $this->assertFalse($cache->contains($key));
+
+        $this->assertTrue($cache->save($key, 'bar'));
+        $this->assertTrue($cache->contains($key));
+        $this->assertSame('bar', $cache->fetch($key));
+
+        $this->assertTrue($cache->delete($key));
+        $this->assertFalse($cache->fetch($key));
+        $this->assertTrue($cache->save($key, 'bar'));
+
+        $cache->flushAll();
+        $this->assertFalse($cache->fetch($key));
+        $this->assertFalse($cache->contains($key));
+    }
+}

core/vendor/symfony/cache/Tests/Fixtures/ArrayCache.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Symfony\Component\Cache\Tests\Fixtures;
+
+use Doctrine\Common\Cache\CacheProvider;
+
+class ArrayCache extends CacheProvider
+{
+    private $data = [];
+
+    protected function doFetch($id)
+    {
+        return $this->doContains($id) ? $this->data[$id][0] : false;
+    }
+
+    protected function doContains($id)
+    {
+        if (!isset($this->data[$id])) {
+            return false;
+        }
+
+        $expiry = $this->data[$id][1];
+
+        return !$expiry || time() < $expiry || !$this->doDelete($id);
+    }
+
+    protected function doSave($id, $data, $lifeTime = 0)
+    {
+        $this->data[$id] = [$data, $lifeTime ? time() + $lifeTime : false];
+
+        return true;
+    }
+
+    protected function doDelete($id)
+    {
+        unset($this->data[$id]);
+
+        return true;
+    }
+
+    protected function doFlush()
+    {
+        $this->data = [];
+
+        return true;
+    }
+
+    protected function doGetStats()
+    {
+        return null;
+    }
+}

core/vendor/symfony/cache/Tests/Fixtures/ExternalAdapter.php

@@ -0,0 +1,76 @@
+<?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\Tests\Fixtures;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+
+/**
+ * Adapter not implementing the {@see \Symfony\Component\Cache\Adapter\AdapterInterface}.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class ExternalAdapter implements CacheItemPoolInterface
+{
+    private $cache;
+
+    public function __construct()
+    {
+        $this->cache = new ArrayAdapter();
+    }
+
+    public function getItem($key)
+    {
+        return $this->cache->getItem($key);
+    }
+
+    public function getItems(array $keys = [])
+    {
+        return $this->cache->getItems($keys);
+    }
+
+    public function hasItem($key)
+    {
+        return $this->cache->hasItem($key);
+    }
+
+    public function clear()
+    {
+        return $this->cache->clear();
+    }
+
+    public function deleteItem($key)
+    {
+        return $this->cache->deleteItem($key);
+    }
+
+    public function deleteItems(array $keys)
+    {
+        return $this->cache->deleteItems($keys);
+    }
+
+    public function save(CacheItemInterface $item)
+    {
+        return $this->cache->save($item);
+    }
+
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return $this->cache->saveDeferred($item);
+    }
+
+    public function commit()
+    {
+        return $this->cache->commit();
+    }
+}

core/vendor/symfony/cache/Tests/Simple/AbstractRedisCacheTest.php

@@ -0,0 +1,46 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\RedisCache;
+
+abstract class AbstractRedisCacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testSetTtl' => 'Testing expiration slows down the test suite',
+        'testSetMultipleTtl' => 'Testing expiration slows down the test suite',
+        'testDefaultLifeTime' => 'Testing expiration slows down the test suite',
+    ];
+
+    protected static $redis;
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new RedisCache(self::$redis, str_replace('\\', '.', __CLASS__), $defaultLifetime);
+    }
+
+    public static function setUpBeforeClass()
+    {
+        if (!\extension_loaded('redis')) {
+            self::markTestSkipped('Extension redis required.');
+        }
+        if (!@((new \Redis())->connect(getenv('REDIS_HOST')))) {
+            $e = error_get_last();
+            self::markTestSkipped($e['message']);
+        }
+    }
+
+    public static function tearDownAfterClass()
+    {
+        self::$redis = null;
+    }
+}

core/vendor/symfony/cache/Tests/Simple/ApcuCacheTest.php

@@ -0,0 +1,35 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\ApcuCache;
+
+class ApcuCacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testSetTtl' => 'Testing expiration slows down the test suite',
+        'testSetMultipleTtl' => 'Testing expiration slows down the test suite',
+        'testDefaultLifeTime' => 'Testing expiration slows down the test suite',
+    ];
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        if (!\function_exists('apcu_fetch') || !filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) || ('cli' === \PHP_SAPI && !filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN))) {
+            $this->markTestSkipped('APCu extension is required.');
+        }
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $this->markTestSkipped('Fails transiently on Windows.');
+        }
+
+        return new ApcuCache(str_replace('\\', '.', __CLASS__), $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/ArrayCacheTest.php

@@ -0,0 +1,25 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\ArrayCache;
+
+/**
+ * @group time-sensitive
+ */
+class ArrayCacheTest extends CacheTestCase
+{
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new ArrayCache($defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/CacheTestCase.php

@@ -0,0 +1,150 @@
+<?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\Tests\Simple;
+
+use Cache\IntegrationTests\SimpleCacheTest;
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\PruneableInterface;
+
+abstract class CacheTestCase extends SimpleCacheTest
+{
+    protected function setUp()
+    {
+        parent::setUp();
+
+        if (!\array_key_exists('testPrune', $this->skippedTests) && !$this->createSimpleCache() instanceof PruneableInterface) {
+            $this->skippedTests['testPrune'] = 'Not a pruneable cache pool.';
+        }
+    }
+
+    public static function validKeys()
+    {
+        if (\defined('HHVM_VERSION')) {
+            return parent::validKeys();
+        }
+
+        return array_merge(parent::validKeys(), [["a\0b"]]);
+    }
+
+    public function testDefaultLifeTime()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        $cache = $this->createSimpleCache(2);
+        $cache->clear();
+
+        $cache->set('key.dlt', 'value');
+        sleep(1);
+
+        $this->assertSame('value', $cache->get('key.dlt'));
+
+        sleep(2);
+        $this->assertNull($cache->get('key.dlt'));
+
+        $cache->clear();
+    }
+
+    public function testNotUnserializable()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        $cache = $this->createSimpleCache();
+        $cache->clear();
+
+        $cache->set('foo', new NotUnserializable());
+
+        $this->assertNull($cache->get('foo'));
+
+        $cache->setMultiple(['foo' => new NotUnserializable()]);
+
+        foreach ($cache->getMultiple(['foo']) as $value) {
+        }
+        $this->assertNull($value);
+
+        $cache->clear();
+    }
+
+    public function testPrune()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        if (!method_exists($this, 'isPruned')) {
+            $this->fail('Test classes for pruneable caches must implement `isPruned($cache, $name)` method.');
+        }
+
+        /** @var PruneableInterface|CacheInterface $cache */
+        $cache = $this->createSimpleCache();
+        $cache->clear();
+
+        $cache->set('foo', 'foo-val', new \DateInterval('PT05S'));
+        $cache->set('bar', 'bar-val', new \DateInterval('PT10S'));
+        $cache->set('baz', 'baz-val', new \DateInterval('PT15S'));
+        $cache->set('qux', 'qux-val', new \DateInterval('PT20S'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertTrue($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'bar'));
+        $this->assertTrue($this->isPruned($cache, 'baz'));
+        $this->assertTrue($this->isPruned($cache, 'qux'));
+
+        $cache->set('foo', 'foo-val');
+        $cache->set('bar', 'bar-val', new \DateInterval('PT20S'));
+        $cache->set('baz', 'baz-val', new \DateInterval('PT40S'));
+        $cache->set('qux', 'qux-val', new \DateInterval('PT80S'));
+
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertFalse($this->isPruned($cache, 'bar'));
+        $this->assertFalse($this->isPruned($cache, 'baz'));
+        $this->assertFalse($this->isPruned($cache, 'qux'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'bar'));
+        $this->assertFalse($this->isPruned($cache, 'baz'));
+        $this->assertFalse($this->isPruned($cache, 'qux'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'baz'));
+        $this->assertFalse($this->isPruned($cache, 'qux'));
+
+        sleep(30);
+        $cache->prune();
+        $this->assertFalse($this->isPruned($cache, 'foo'));
+        $this->assertTrue($this->isPruned($cache, 'qux'));
+
+        $cache->clear();
+    }
+}
+
+class NotUnserializable implements \Serializable
+{
+    public function serialize()
+    {
+        return serialize(123);
+    }
+
+    public function unserialize($ser)
+    {
+        throw new \Exception(__CLASS__);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/ChainCacheTest.php

@@ -0,0 +1,113 @@
+<?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\Tests\Simple;
+
+use PHPUnit\Framework\MockObject\MockObject;
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Simple\ArrayCache;
+use Symfony\Component\Cache\Simple\ChainCache;
+use Symfony\Component\Cache\Simple\FilesystemCache;
+
+/**
+ * @group time-sensitive
+ */
+class ChainCacheTest extends CacheTestCase
+{
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new ChainCache([new ArrayCache($defaultLifetime), new FilesystemCache('', $defaultLifetime)], $defaultLifetime);
+    }
+
+    public function testEmptyCachesException()
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('At least one cache must be specified.');
+        new ChainCache([]);
+    }
+
+    public function testInvalidCacheException()
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('The class "stdClass" does not implement');
+        new ChainCache([new \stdClass()]);
+    }
+
+    public function testPrune()
+    {
+        if (isset($this->skippedTests[__FUNCTION__])) {
+            $this->markTestSkipped($this->skippedTests[__FUNCTION__]);
+        }
+
+        $cache = new ChainCache([
+            $this->getPruneableMock(),
+            $this->getNonPruneableMock(),
+            $this->getPruneableMock(),
+        ]);
+        $this->assertTrue($cache->prune());
+
+        $cache = new ChainCache([
+            $this->getPruneableMock(),
+            $this->getFailingPruneableMock(),
+            $this->getPruneableMock(),
+        ]);
+        $this->assertFalse($cache->prune());
+    }
+
+    /**
+     * @return MockObject|PruneableCacheInterface
+     */
+    private function getPruneableMock()
+    {
+        $pruneable = $this
+            ->getMockBuilder(PruneableCacheInterface::class)
+            ->getMock();
+
+        $pruneable
+            ->expects($this->atLeastOnce())
+            ->method('prune')
+            ->willReturn(true);
+
+        return $pruneable;
+    }
+
+    /**
+     * @return MockObject|PruneableCacheInterface
+     */
+    private function getFailingPruneableMock()
+    {
+        $pruneable = $this
+            ->getMockBuilder(PruneableCacheInterface::class)
+            ->getMock();
+
+        $pruneable
+            ->expects($this->atLeastOnce())
+            ->method('prune')
+            ->willReturn(false);
+
+        return $pruneable;
+    }
+
+    /**
+     * @return MockObject|CacheInterface
+     */
+    private function getNonPruneableMock()
+    {
+        return $this
+            ->getMockBuilder(CacheInterface::class)
+            ->getMock();
+    }
+}
+
+interface PruneableCacheInterface extends PruneableInterface, CacheInterface
+{
+}

core/vendor/symfony/cache/Tests/Simple/DoctrineCacheTest.php

@@ -0,0 +1,31 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\DoctrineCache;
+use Symfony\Component\Cache\Tests\Fixtures\ArrayCache;
+
+/**
+ * @group time-sensitive
+ */
+class DoctrineCacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testObjectDoesNotChangeInCache' => 'ArrayCache does not use serialize/unserialize',
+        'testNotUnserializable' => 'ArrayCache does not use serialize/unserialize',
+    ];
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new DoctrineCache(new ArrayCache($defaultLifetime), '', $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/FilesystemCacheTest.php

@@ -0,0 +1,34 @@
+<?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\Tests\Simple;
+
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\Simple\FilesystemCache;
+
+/**
+ * @group time-sensitive
+ */
+class FilesystemCacheTest extends CacheTestCase
+{
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new FilesystemCache('', $defaultLifetime);
+    }
+
+    protected function isPruned(CacheInterface $cache, $name)
+    {
+        $getFileMethod = (new \ReflectionObject($cache))->getMethod('getFile');
+        $getFileMethod->setAccessible(true);
+
+        return !file_exists($getFileMethod->invoke($cache, $name));
+    }
+}

core/vendor/symfony/cache/Tests/Simple/MemcachedCacheTest.php

@@ -0,0 +1,172 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Adapter\AbstractAdapter;
+use Symfony\Component\Cache\Simple\MemcachedCache;
+
+class MemcachedCacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testSetTtl' => 'Testing expiration slows down the test suite',
+        'testSetMultipleTtl' => 'Testing expiration slows down the test suite',
+        'testDefaultLifeTime' => 'Testing expiration slows down the test suite',
+    ];
+
+    protected static $client;
+
+    public static function setUpBeforeClass()
+    {
+        if (!MemcachedCache::isSupported()) {
+            self::markTestSkipped('Extension memcached >=2.2.0 required.');
+        }
+        self::$client = AbstractAdapter::createConnection('memcached://'.getenv('MEMCACHED_HOST'));
+        self::$client->get('foo');
+        $code = self::$client->getResultCode();
+
+        if (\Memcached::RES_SUCCESS !== $code && \Memcached::RES_NOTFOUND !== $code) {
+            self::markTestSkipped('Memcached error: '.strtolower(self::$client->getResultMessage()));
+        }
+    }
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        $client = $defaultLifetime ? AbstractAdapter::createConnection('memcached://'.getenv('MEMCACHED_HOST'), ['binary_protocol' => false]) : self::$client;
+
+        return new MemcachedCache($client, str_replace('\\', '.', __CLASS__), $defaultLifetime);
+    }
+
+    public function testCreatePersistentConnectionShouldNotDupServerList()
+    {
+        $instance = MemcachedCache::createConnection('memcached://'.getenv('MEMCACHED_HOST'), ['persistent_id' => 'persistent']);
+        $this->assertCount(1, $instance->getServerList());
+
+        $instance = MemcachedCache::createConnection('memcached://'.getenv('MEMCACHED_HOST'), ['persistent_id' => 'persistent']);
+        $this->assertCount(1, $instance->getServerList());
+    }
+
+    public function testOptions()
+    {
+        $client = MemcachedCache::createConnection([], [
+            'libketama_compatible' => false,
+            'distribution' => 'modula',
+            'compression' => true,
+            'serializer' => 'php',
+            'hash' => 'md5',
+        ]);
+
+        $this->assertSame(\Memcached::SERIALIZER_PHP, $client->getOption(\Memcached::OPT_SERIALIZER));
+        $this->assertSame(\Memcached::HASH_MD5, $client->getOption(\Memcached::OPT_HASH));
+        $this->assertTrue($client->getOption(\Memcached::OPT_COMPRESSION));
+        $this->assertSame(0, $client->getOption(\Memcached::OPT_LIBKETAMA_COMPATIBLE));
+        $this->assertSame(\Memcached::DISTRIBUTION_MODULA, $client->getOption(\Memcached::OPT_DISTRIBUTION));
+    }
+
+    /**
+     * @dataProvider provideBadOptions
+     */
+    public function testBadOptions($name, $value)
+    {
+        $this->expectException('ErrorException');
+        $this->expectExceptionMessage('constant(): Couldn\'t find constant Memcached::');
+        MemcachedCache::createConnection([], [$name => $value]);
+    }
+
+    public function provideBadOptions()
+    {
+        return [
+            ['foo', 'bar'],
+            ['hash', 'zyx'],
+            ['serializer', 'zyx'],
+            ['distribution', 'zyx'],
+        ];
+    }
+
+    public function testDefaultOptions()
+    {
+        $this->assertTrue(MemcachedCache::isSupported());
+
+        $client = MemcachedCache::createConnection([]);
+
+        $this->assertTrue($client->getOption(\Memcached::OPT_COMPRESSION));
+        $this->assertSame(1, $client->getOption(\Memcached::OPT_BINARY_PROTOCOL));
+        $this->assertSame(1, $client->getOption(\Memcached::OPT_LIBKETAMA_COMPATIBLE));
+    }
+
+    public function testOptionSerializer()
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\CacheException');
+        $this->expectExceptionMessage('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
+        if (!\Memcached::HAVE_JSON) {
+            $this->markTestSkipped('Memcached::HAVE_JSON required');
+        }
+
+        new MemcachedCache(MemcachedCache::createConnection([], ['serializer' => 'json']));
+    }
+
+    /**
+     * @dataProvider provideServersSetting
+     */
+    public function testServersSetting($dsn, $host, $port)
+    {
+        $client1 = MemcachedCache::createConnection($dsn);
+        $client2 = MemcachedCache::createConnection([$dsn]);
+        $client3 = MemcachedCache::createConnection([[$host, $port]]);
+        $expect = [
+            'host' => $host,
+            'port' => $port,
+        ];
+
+        $f = function ($s) { return ['host' => $s['host'], 'port' => $s['port']]; };
+        $this->assertSame([$expect], array_map($f, $client1->getServerList()));
+        $this->assertSame([$expect], array_map($f, $client2->getServerList()));
+        $this->assertSame([$expect], array_map($f, $client3->getServerList()));
+    }
+
+    public function provideServersSetting()
+    {
+        yield [
+            'memcached://127.0.0.1/50',
+            '127.0.0.1',
+            11211,
+        ];
+        yield [
+            'memcached://localhost:11222?weight=25',
+            'localhost',
+            11222,
+        ];
+        if (filter_var(ini_get('memcached.use_sasl'), FILTER_VALIDATE_BOOLEAN)) {
+            yield [
+                'memcached://user:password@127.0.0.1?weight=50',
+                '127.0.0.1',
+                11211,
+            ];
+        }
+        yield [
+            'memcached:///var/run/memcached.sock?weight=25',
+            '/var/run/memcached.sock',
+            0,
+        ];
+        yield [
+            'memcached:///var/local/run/memcached.socket?weight=25',
+            '/var/local/run/memcached.socket',
+            0,
+        ];
+        if (filter_var(ini_get('memcached.use_sasl'), FILTER_VALIDATE_BOOLEAN)) {
+            yield [
+                'memcached://user:password@/var/local/run/memcached.socket?weight=25',
+                '/var/local/run/memcached.socket',
+                0,
+            ];
+        }
+    }
+}

core/vendor/symfony/cache/Tests/Simple/MemcachedCacheTextModeTest.php

@@ -0,0 +1,25 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Adapter\AbstractAdapter;
+use Symfony\Component\Cache\Simple\MemcachedCache;
+
+class MemcachedCacheTextModeTest extends MemcachedCacheTest
+{
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        $client = AbstractAdapter::createConnection('memcached://'.getenv('MEMCACHED_HOST'), ['binary_protocol' => false]);
+
+        return new MemcachedCache($client, str_replace('\\', '.', __CLASS__), $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/NullCacheTest.php

@@ -0,0 +1,96 @@
+<?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\Tests\Simple;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Cache\Simple\NullCache;
+
+/**
+ * @group time-sensitive
+ */
+class NullCacheTest extends TestCase
+{
+    public function createCachePool()
+    {
+        return new NullCache();
+    }
+
+    public function testGetItem()
+    {
+        $cache = $this->createCachePool();
+
+        $this->assertNull($cache->get('key'));
+    }
+
+    public function testHas()
+    {
+        $this->assertFalse($this->createCachePool()->has('key'));
+    }
+
+    public function testGetMultiple()
+    {
+        $cache = $this->createCachePool();
+
+        $keys = ['foo', 'bar', 'baz', 'biz'];
+
+        $default = new \stdClass();
+        $items = $cache->getMultiple($keys, $default);
+        $count = 0;
+
+        foreach ($items as $key => $item) {
+            $this->assertContains($key, $keys, 'Cache key can not change.');
+            $this->assertSame($default, $item);
+
+            // Remove $key for $keys
+            foreach ($keys as $k => $v) {
+                if ($v === $key) {
+                    unset($keys[$k]);
+                }
+            }
+
+            ++$count;
+        }
+
+        $this->assertSame(4, $count);
+    }
+
+    public function testClear()
+    {
+        $this->assertTrue($this->createCachePool()->clear());
+    }
+
+    public function testDelete()
+    {
+        $this->assertTrue($this->createCachePool()->delete('key'));
+    }
+
+    public function testDeleteMultiple()
+    {
+        $this->assertTrue($this->createCachePool()->deleteMultiple(['key', 'foo', 'bar']));
+    }
+
+    public function testSet()
+    {
+        $cache = $this->createCachePool();
+
+        $this->assertFalse($cache->set('key', 'val'));
+        $this->assertNull($cache->get('key'));
+    }
+
+    public function testSetMultiple()
+    {
+        $cache = $this->createCachePool();
+
+        $this->assertFalse($cache->setMultiple(['key' => 'val']));
+        $this->assertNull($cache->get('key'));
+    }
+}

core/vendor/symfony/cache/Tests/Simple/PdoCacheTest.php

@@ -0,0 +1,47 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\PdoCache;
+use Symfony\Component\Cache\Tests\Traits\PdoPruneableTrait;
+
+/**
+ * @group time-sensitive
+ */
+class PdoCacheTest extends CacheTestCase
+{
+    use PdoPruneableTrait;
+
+    protected static $dbFile;
+
+    public static function setUpBeforeClass()
+    {
+        if (!\extension_loaded('pdo_sqlite')) {
+            self::markTestSkipped('Extension pdo_sqlite required.');
+        }
+
+        self::$dbFile = tempnam(sys_get_temp_dir(), 'sf_sqlite_cache');
+
+        $pool = new PdoCache('sqlite:'.self::$dbFile);
+        $pool->createTable();
+    }
+
+    public static function tearDownAfterClass()
+    {
+        @unlink(self::$dbFile);
+    }
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new PdoCache('sqlite:'.self::$dbFile, 'ns', $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/PdoDbalCacheTest.php

@@ -0,0 +1,48 @@
+<?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\Tests\Simple;
+
+use Doctrine\DBAL\DriverManager;
+use Symfony\Component\Cache\Simple\PdoCache;
+use Symfony\Component\Cache\Tests\Traits\PdoPruneableTrait;
+
+/**
+ * @group time-sensitive
+ */
+class PdoDbalCacheTest extends CacheTestCase
+{
+    use PdoPruneableTrait;
+
+    protected static $dbFile;
+
+    public static function setUpBeforeClass()
+    {
+        if (!\extension_loaded('pdo_sqlite')) {
+            self::markTestSkipped('Extension pdo_sqlite required.');
+        }
+
+        self::$dbFile = tempnam(sys_get_temp_dir(), 'sf_sqlite_cache');
+
+        $pool = new PdoCache(DriverManager::getConnection(['driver' => 'pdo_sqlite', 'path' => self::$dbFile]));
+        $pool->createTable();
+    }
+
+    public static function tearDownAfterClass()
+    {
+        @unlink(self::$dbFile);
+    }
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new PdoCache(DriverManager::getConnection(['driver' => 'pdo_sqlite', 'path' => self::$dbFile]), '', $defaultLifetime);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/PhpArrayCacheTest.php

@@ -0,0 +1,143 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\NullCache;
+use Symfony\Component\Cache\Simple\PhpArrayCache;
+use Symfony\Component\Cache\Tests\Adapter\FilesystemAdapterTest;
+
+/**
+ * @group time-sensitive
+ */
+class PhpArrayCacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testBasicUsageWithLongKey' => 'PhpArrayCache does no writes',
+
+        'testDelete' => 'PhpArrayCache does no writes',
+        'testDeleteMultiple' => 'PhpArrayCache does no writes',
+        'testDeleteMultipleGenerator' => 'PhpArrayCache does no writes',
+
+        'testSetTtl' => 'PhpArrayCache does no expiration',
+        'testSetMultipleTtl' => 'PhpArrayCache does no expiration',
+        'testSetExpiredTtl' => 'PhpArrayCache does no expiration',
+        'testSetMultipleExpiredTtl' => 'PhpArrayCache does no expiration',
+
+        'testGetInvalidKeys' => 'PhpArrayCache does no validation',
+        'testGetMultipleInvalidKeys' => 'PhpArrayCache does no validation',
+        'testSetInvalidKeys' => 'PhpArrayCache does no validation',
+        'testDeleteInvalidKeys' => 'PhpArrayCache does no validation',
+        'testDeleteMultipleInvalidKeys' => 'PhpArrayCache does no validation',
+        'testSetInvalidTtl' => 'PhpArrayCache does no validation',
+        'testSetMultipleInvalidKeys' => 'PhpArrayCache does no validation',
+        'testSetMultipleInvalidTtl' => 'PhpArrayCache does no validation',
+        'testHasInvalidKeys' => 'PhpArrayCache does no validation',
+        'testSetValidData' => 'PhpArrayCache does no validation',
+
+        'testDefaultLifeTime' => 'PhpArrayCache does not allow configuring a default lifetime.',
+        'testPrune' => 'PhpArrayCache just proxies',
+    ];
+
+    protected static $file;
+
+    public static function setUpBeforeClass()
+    {
+        self::$file = sys_get_temp_dir().'/symfony-cache/php-array-adapter-test.php';
+    }
+
+    protected function tearDown()
+    {
+        if (file_exists(sys_get_temp_dir().'/symfony-cache')) {
+            FilesystemAdapterTest::rmdir(sys_get_temp_dir().'/symfony-cache');
+        }
+    }
+
+    public function createSimpleCache()
+    {
+        return new PhpArrayCacheWrapper(self::$file, new NullCache());
+    }
+
+    public function testStore()
+    {
+        $arrayWithRefs = [];
+        $arrayWithRefs[0] = 123;
+        $arrayWithRefs[1] = &$arrayWithRefs[0];
+
+        $object = (object) [
+            'foo' => 'bar',
+            'foo2' => 'bar2',
+        ];
+
+        $expected = [
+            'null' => null,
+            'serializedString' => serialize($object),
+            'arrayWithRefs' => $arrayWithRefs,
+            'object' => $object,
+            'arrayWithObject' => ['bar' => $object],
+        ];
+
+        $cache = new PhpArrayCache(self::$file, new NullCache());
+        $cache->warmUp($expected);
+
+        foreach ($expected as $key => $value) {
+            $this->assertSame(serialize($value), serialize($cache->get($key)), 'Warm up should create a PHP file that OPCache can load in memory');
+        }
+    }
+
+    public function testStoredFile()
+    {
+        $expected = [
+            'integer' => 42,
+            'float' => 42.42,
+            'boolean' => true,
+            'array_simple' => ['foo', 'bar'],
+            'array_associative' => ['foo' => 'bar', 'foo2' => 'bar2'],
+        ];
+
+        $cache = new PhpArrayCache(self::$file, new NullCache());
+        $cache->warmUp($expected);
+
+        $values = eval(substr(file_get_contents(self::$file), 6));
+
+        $this->assertSame($expected, $values, 'Warm up should create a PHP file that OPCache can load in memory');
+    }
+}
+
+class PhpArrayCacheWrapper extends PhpArrayCache
+{
+    public function set($key, $value, $ttl = null)
+    {
+        \call_user_func(\Closure::bind(function () use ($key, $value) {
+            $this->values[$key] = $value;
+            $this->warmUp($this->values);
+            $this->values = eval(substr(file_get_contents($this->file), 6));
+        }, $this, PhpArrayCache::class));
+
+        return true;
+    }
+
+    public function setMultiple($values, $ttl = null)
+    {
+        if (!\is_array($values) && !$values instanceof \Traversable) {
+            return parent::setMultiple($values, $ttl);
+        }
+        \call_user_func(\Closure::bind(function () use ($values) {
+            foreach ($values as $key => $value) {
+                $this->values[$key] = $value;
+            }
+            $this->warmUp($this->values);
+            $this->values = eval(substr(file_get_contents($this->file), 6));
+        }, $this, PhpArrayCache::class));
+
+        return true;
+    }
+}

core/vendor/symfony/cache/Tests/Simple/PhpArrayCacheWithFallbackTest.php

@@ -0,0 +1,55 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\FilesystemCache;
+use Symfony\Component\Cache\Simple\PhpArrayCache;
+use Symfony\Component\Cache\Tests\Adapter\FilesystemAdapterTest;
+
+/**
+ * @group time-sensitive
+ */
+class PhpArrayCacheWithFallbackTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testGetInvalidKeys' => 'PhpArrayCache does no validation',
+        'testGetMultipleInvalidKeys' => 'PhpArrayCache does no validation',
+        'testDeleteInvalidKeys' => 'PhpArrayCache does no validation',
+        'testDeleteMultipleInvalidKeys' => 'PhpArrayCache does no validation',
+        //'testSetValidData' => 'PhpArrayCache does no validation',
+        'testSetInvalidKeys' => 'PhpArrayCache does no validation',
+        'testSetInvalidTtl' => 'PhpArrayCache does no validation',
+        'testSetMultipleInvalidKeys' => 'PhpArrayCache does no validation',
+        'testSetMultipleInvalidTtl' => 'PhpArrayCache does no validation',
+        'testHasInvalidKeys' => 'PhpArrayCache does no validation',
+        'testPrune' => 'PhpArrayCache just proxies',
+    ];
+
+    protected static $file;
+
+    public static function setUpBeforeClass()
+    {
+        self::$file = sys_get_temp_dir().'/symfony-cache/php-array-adapter-test.php';
+    }
+
+    protected function tearDown()
+    {
+        if (file_exists(sys_get_temp_dir().'/symfony-cache')) {
+            FilesystemAdapterTest::rmdir(sys_get_temp_dir().'/symfony-cache');
+        }
+    }
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new PhpArrayCache(self::$file, new FilesystemCache('php-array-fallback', $defaultLifetime));
+    }
+}

core/vendor/symfony/cache/Tests/Simple/PhpFilesCacheTest.php

@@ -0,0 +1,42 @@
+<?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\Tests\Simple;
+
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\Simple\PhpFilesCache;
+
+/**
+ * @group time-sensitive
+ */
+class PhpFilesCacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testDefaultLifeTime' => 'PhpFilesCache does not allow configuring a default lifetime.',
+    ];
+
+    public function createSimpleCache()
+    {
+        if (!PhpFilesCache::isSupported()) {
+            $this->markTestSkipped('OPcache extension is not enabled.');
+        }
+
+        return new PhpFilesCache('sf-cache');
+    }
+
+    protected function isPruned(CacheInterface $cache, $name)
+    {
+        $getFileMethod = (new \ReflectionObject($cache))->getMethod('getFile');
+        $getFileMethod->setAccessible(true);
+
+        return !file_exists($getFileMethod->invoke($cache, $name));
+    }
+}

core/vendor/symfony/cache/Tests/Simple/Psr6CacheTest.php

@@ -0,0 +1,30 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+use Symfony\Component\Cache\Simple\Psr6Cache;
+
+/**
+ * @group time-sensitive
+ */
+class Psr6CacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testPrune' => 'Psr6Cache just proxies',
+    ];
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new Psr6Cache(new FilesystemAdapter('', $defaultLifetime));
+    }
+}

core/vendor/symfony/cache/Tests/Simple/RedisArrayCacheTest.php

@@ -0,0 +1,24 @@
+<?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\Tests\Simple;
+
+class RedisArrayCacheTest extends AbstractRedisCacheTest
+{
+    public static function setUpBeforeClass()
+    {
+        parent::setupBeforeClass();
+        if (!class_exists('RedisArray')) {
+            self::markTestSkipped('The RedisArray class is required.');
+        }
+        self::$redis = new \RedisArray([getenv('REDIS_HOST')], ['lazy_connect' => true]);
+    }
+}

core/vendor/symfony/cache/Tests/Simple/RedisCacheTest.php

@@ -0,0 +1,82 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\RedisCache;
+
+class RedisCacheTest extends AbstractRedisCacheTest
+{
+    public static function setUpBeforeClass()
+    {
+        parent::setupBeforeClass();
+        self::$redis = RedisCache::createConnection('redis://'.getenv('REDIS_HOST'));
+    }
+
+    public function testCreateConnection()
+    {
+        $redisHost = getenv('REDIS_HOST');
+
+        $redis = RedisCache::createConnection('redis://'.$redisHost);
+        $this->assertInstanceOf(\Redis::class, $redis);
+        $this->assertTrue($redis->isConnected());
+        $this->assertSame(0, $redis->getDbNum());
+
+        $redis = RedisCache::createConnection('redis://'.$redisHost.'/2');
+        $this->assertSame(2, $redis->getDbNum());
+
+        $redis = RedisCache::createConnection('redis://'.$redisHost, ['timeout' => 3]);
+        $this->assertEquals(3, $redis->getTimeout());
+
+        $redis = RedisCache::createConnection('redis://'.$redisHost.'?timeout=4');
+        $this->assertEquals(4, $redis->getTimeout());
+
+        $redis = RedisCache::createConnection('redis://'.$redisHost, ['read_timeout' => 5]);
+        $this->assertEquals(5, $redis->getReadTimeout());
+    }
+
+    /**
+     * @dataProvider provideFailedCreateConnection
+     */
+    public function testFailedCreateConnection($dsn)
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('Redis connection failed');
+        RedisCache::createConnection($dsn);
+    }
+
+    public function provideFailedCreateConnection()
+    {
+        return [
+            ['redis://localhost:1234'],
+            ['redis://foo@localhost'],
+            ['redis://localhost/123'],
+        ];
+    }
+
+    /**
+     * @dataProvider provideInvalidCreateConnection
+     */
+    public function testInvalidCreateConnection($dsn)
+    {
+        $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
+        $this->expectExceptionMessage('Invalid Redis DSN');
+        RedisCache::createConnection($dsn);
+    }
+
+    public function provideInvalidCreateConnection()
+    {
+        return [
+            ['foo://localhost'],
+            ['redis://'],
+        ];
+    }
+}

core/vendor/symfony/cache/Tests/Simple/RedisClusterCacheTest.php

@@ -0,0 +1,27 @@
+<?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\Tests\Simple;
+
+class RedisClusterCacheTest extends AbstractRedisCacheTest
+{
+    public static function setUpBeforeClass()
+    {
+        if (!class_exists('RedisCluster')) {
+            self::markTestSkipped('The RedisCluster class is required.');
+        }
+        if (!$hosts = getenv('REDIS_CLUSTER_HOSTS')) {
+            self::markTestSkipped('REDIS_CLUSTER_HOSTS env var is not defined.');
+        }
+
+        self::$redis = new \RedisCluster(null, explode(' ', $hosts));
+    }
+}

core/vendor/symfony/cache/Tests/Simple/TraceableCacheTest.php

@@ -0,0 +1,171 @@
+<?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\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\FilesystemCache;
+use Symfony\Component\Cache\Simple\TraceableCache;
+
+/**
+ * @group time-sensitive
+ */
+class TraceableCacheTest extends CacheTestCase
+{
+    protected $skippedTests = [
+        'testPrune' => 'TraceableCache just proxies',
+    ];
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new TraceableCache(new FilesystemCache('', $defaultLifetime));
+    }
+
+    public function testGetMissTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->get('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('get', $call->name);
+        $this->assertSame(['k' => false], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(1, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testGetHitTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->set('k', 'foo');
+        $pool->get('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(2, $calls);
+
+        $call = $calls[1];
+        $this->assertSame(1, $call->hits);
+        $this->assertSame(0, $call->misses);
+    }
+
+    public function testGetMultipleMissTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->set('k1', 123);
+        $values = $pool->getMultiple(['k0', 'k1']);
+        foreach ($values as $value) {
+        }
+        $calls = $pool->getCalls();
+        $this->assertCount(2, $calls);
+
+        $call = $calls[1];
+        $this->assertSame('getMultiple', $call->name);
+        $this->assertSame(['k1' => true, 'k0' => false], $call->result);
+        $this->assertSame(1, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testHasMissTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->has('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('has', $call->name);
+        $this->assertSame(['k' => false], $call->result);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testHasHitTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->set('k', 'foo');
+        $pool->has('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(2, $calls);
+
+        $call = $calls[1];
+        $this->assertSame('has', $call->name);
+        $this->assertSame(['k' => true], $call->result);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testDeleteTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->delete('k');
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('delete', $call->name);
+        $this->assertSame(['k' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testDeleteMultipleTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $arg = ['k0', 'k1'];
+        $pool->deleteMultiple($arg);
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('deleteMultiple', $call->name);
+        $this->assertSame(['keys' => $arg, 'result' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testTraceSetTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->set('k', 'foo');
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('set', $call->name);
+        $this->assertSame(['k' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+
+    public function testSetMultipleTrace()
+    {
+        $pool = $this->createSimpleCache();
+        $pool->setMultiple(['k' => 'foo']);
+        $calls = $pool->getCalls();
+        $this->assertCount(1, $calls);
+
+        $call = $calls[0];
+        $this->assertSame('setMultiple', $call->name);
+        $this->assertSame(['keys' => ['k'], 'result' => true], $call->result);
+        $this->assertSame(0, $call->hits);
+        $this->assertSame(0, $call->misses);
+        $this->assertNotEmpty($call->start);
+        $this->assertNotEmpty($call->end);
+    }
+}

core/vendor/symfony/cache/Tests/Traits/PdoPruneableTrait.php

@@ -0,0 +1,34 @@
+<?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\Tests\Traits;
+
+trait PdoPruneableTrait
+{
+    protected function isPruned($cache, $name)
+    {
+        $o = new \ReflectionObject($cache);
+
+        if (!$o->hasMethod('getConnection')) {
+            self::fail('Cache does not have "getConnection()" method.');
+        }
+
+        $getPdoConn = $o->getMethod('getConnection');
+        $getPdoConn->setAccessible(true);
+
+        /** @var \Doctrine\DBAL\Statement $select */
+        $select = $getPdoConn->invoke($cache)->prepare('SELECT 1 FROM cache_items WHERE item_id LIKE :id');
+        $select->bindValue(':id', sprintf('%%%s', $name));
+        $select->execute();
+
+        return 0 === \count($select->fetchAll(\PDO::FETCH_COLUMN));
+    }
+}

core/vendor/symfony/cache/Traits/AbstractTrait.php

@@ -0,0 +1,268 @@
+<?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\Traits;
+
+use Psr\Log\LoggerAwareTrait;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait AbstractTrait
+{
+    use LoggerAwareTrait;
+
+    private $namespace;
+    private $namespaceVersion = '';
+    private $versioningIsEnabled = false;
+    private $deferred = [];
+
+    /**
+     * @var int|null The maximum length to enforce for identifiers or null when no limit applies
+     */
+    protected $maxIdLength;
+
+    /**
+     * Fetches several cache items.
+     *
+     * @param array $ids The cache identifiers to fetch
+     *
+     * @return array|\Traversable The corresponding values found in the cache
+     */
+    abstract protected function doFetch(array $ids);
+
+    /**
+     * Confirms if the cache contains specified cache item.
+     *
+     * @param string $id The identifier for which to check existence
+     *
+     * @return bool True if item exists in the cache, false otherwise
+     */
+    abstract protected function doHave($id);
+
+    /**
+     * Deletes all items in the pool.
+     *
+     * @param string $namespace The prefix used for all identifiers managed by this pool
+     *
+     * @return bool True if the pool was successfully cleared, false otherwise
+     */
+    abstract protected function doClear($namespace);
+
+    /**
+     * Removes multiple items from the pool.
+     *
+     * @param array $ids An array of identifiers that should be removed from the pool
+     *
+     * @return bool True if the items were successfully removed, false otherwise
+     */
+    abstract protected function doDelete(array $ids);
+
+    /**
+     * Persists several cache items immediately.
+     *
+     * @param array $values   The values to cache, indexed by their cache identifier
+     * @param int   $lifetime The lifetime of the cached values, 0 for persisting until manual cleaning
+     *
+     * @return array|bool The identifiers that failed to be cached or a boolean stating if caching succeeded or not
+     */
+    abstract protected function doSave(array $values, $lifetime);
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        $id = $this->getId($key);
+
+        if (isset($this->deferred[$key])) {
+            $this->commit();
+        }
+
+        try {
+            return $this->doHave($id);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to check if key "{key}" is cached', ['key' => $key, 'exception' => $e]);
+
+            return false;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->deferred = [];
+        if ($cleared = $this->versioningIsEnabled) {
+            $namespaceVersion = substr_replace(base64_encode(pack('V', mt_rand())), static::NS_SEPARATOR, 5);
+            try {
+                $cleared = $this->doSave([static::NS_SEPARATOR.$this->namespace => $namespaceVersion], 0);
+            } catch (\Exception $e) {
+                $cleared = false;
+            }
+            if ($cleared = true === $cleared || [] === $cleared) {
+                $this->namespaceVersion = $namespaceVersion;
+            }
+        }
+
+        try {
+            return $this->doClear($this->namespace) || $cleared;
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to clear the cache', ['exception' => $e]);
+
+            return false;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return $this->deleteItems([$key]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        $ids = [];
+
+        foreach ($keys as $key) {
+            $ids[$key] = $this->getId($key);
+            unset($this->deferred[$key]);
+        }
+
+        try {
+            if ($this->doDelete($ids)) {
+                return true;
+            }
+        } catch (\Exception $e) {
+        }
+
+        $ok = true;
+
+        // When bulk-delete failed, retry each item individually
+        foreach ($ids as $key => $id) {
+            try {
+                $e = null;
+                if ($this->doDelete([$id])) {
+                    continue;
+                }
+            } catch (\Exception $e) {
+            }
+            CacheItem::log($this->logger, 'Failed to delete key "{key}"', ['key' => $key, 'exception' => $e]);
+            $ok = false;
+        }
+
+        return $ok;
+    }
+
+    /**
+     * Enables/disables versioning of items.
+     *
+     * When versioning is enabled, clearing the cache is atomic and doesn't require listing existing keys to proceed,
+     * but old keys may need garbage collection and extra round-trips to the back-end are required.
+     *
+     * Calling this method also clears the memoized namespace version and thus forces a resynchonization of it.
+     *
+     * @param bool $enable
+     *
+     * @return bool the previous state of versioning
+     */
+    public function enableVersioning($enable = true)
+    {
+        $wasEnabled = $this->versioningIsEnabled;
+        $this->versioningIsEnabled = (bool) $enable;
+        $this->namespaceVersion = '';
+
+        return $wasEnabled;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $this->namespaceVersion = '';
+    }
+
+    /**
+     * Like the native unserialize() function but throws an exception if anything goes wrong.
+     *
+     * @param string $value
+     *
+     * @return mixed
+     *
+     * @throws \Exception
+     */
+    protected static function unserialize($value)
+    {
+        if ('b:0;' === $value) {
+            return false;
+        }
+        $unserializeCallbackHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback');
+        try {
+            if (false !== $value = unserialize($value)) {
+                return $value;
+            }
+            throw new \DomainException('Failed to unserialize cached value');
+        } catch (\Error $e) {
+            throw new \ErrorException($e->getMessage(), $e->getCode(), E_ERROR, $e->getFile(), $e->getLine());
+        } finally {
+            ini_set('unserialize_callback_func', $unserializeCallbackHandler);
+        }
+    }
+
+    private function getId($key)
+    {
+        CacheItem::validateKey($key);
+
+        if ($this->versioningIsEnabled && '' === $this->namespaceVersion) {
+            $this->namespaceVersion = '1'.static::NS_SEPARATOR;
+            try {
+                foreach ($this->doFetch([static::NS_SEPARATOR.$this->namespace]) as $v) {
+                    $this->namespaceVersion = $v;
+                }
+                if ('1'.static::NS_SEPARATOR === $this->namespaceVersion) {
+                    $this->namespaceVersion = substr_replace(base64_encode(pack('V', time())), static::NS_SEPARATOR, 5);
+                    $this->doSave([static::NS_SEPARATOR.$this->namespace => $this->namespaceVersion], 0);
+                }
+            } catch (\Exception $e) {
+            }
+        }
+
+        if (null === $this->maxIdLength) {
+            return $this->namespace.$this->namespaceVersion.$key;
+        }
+        if (\strlen($id = $this->namespace.$this->namespaceVersion.$key) > $this->maxIdLength) {
+            $id = $this->namespace.$this->namespaceVersion.substr_replace(base64_encode(hash('sha256', $key, true)), static::NS_SEPARATOR, -(\strlen($this->namespaceVersion) + 22));
+        }
+
+        return $id;
+    }
+
+    /**
+     * @internal
+     */
+    public static function handleUnserializeCallback($class)
+    {
+        throw new \DomainException('Class not found: '.$class);
+    }
+}

core/vendor/symfony/cache/Traits/ApcuTrait.php

@@ -0,0 +1,117 @@
+<?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\Traits;
+
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\CacheException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait ApcuTrait
+{
+    public static function isSupported()
+    {
+        return \function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN);
+    }
+
+    private function init($namespace, $defaultLifetime, $version)
+    {
+        if (!static::isSupported()) {
+            throw new CacheException('APCu is not enabled');
+        }
+        if ('cli' === \PHP_SAPI) {
+            ini_set('apc.use_request_time', 0);
+        }
+        parent::__construct($namespace, $defaultLifetime);
+
+        if (null !== $version) {
+            CacheItem::validateKey($version);
+
+            if (!apcu_exists($version.'@'.$namespace)) {
+                $this->doClear($namespace);
+                apcu_add($version.'@'.$namespace, null);
+            }
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        try {
+            foreach (apcu_fetch($ids, $ok) ?: [] as $k => $v) {
+                if (null !== $v || $ok) {
+                    yield $k => $v;
+                }
+            }
+        } catch (\Error $e) {
+            throw new \ErrorException($e->getMessage(), $e->getCode(), E_ERROR, $e->getFile(), $e->getLine());
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        return apcu_exists($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        return isset($namespace[0]) && class_exists('APCuIterator', false) && ('cli' !== \PHP_SAPI || filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN))
+            ? apcu_delete(new \APCuIterator(sprintf('/^%s/', preg_quote($namespace, '/')), APC_ITER_KEY))
+            : apcu_clear_cache();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        foreach ($ids as $id) {
+            apcu_delete($id);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        try {
+            if (false === $failures = apcu_store($values, null, $lifetime)) {
+                $failures = $values;
+            }
+
+            return array_keys($failures);
+        } catch (\Error $e) {
+        } catch (\Exception $e) {
+        }
+
+        if (1 === \count($values)) {
+            // Workaround https://github.com/krakjoe/apcu/issues/170
+            apcu_delete(key($values));
+        }
+
+        throw $e;
+    }
+}

core/vendor/symfony/cache/Traits/ArrayTrait.php

@@ -0,0 +1,108 @@
+<?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\Traits;
+
+use Psr\Log\LoggerAwareTrait;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait ArrayTrait
+{
+    use LoggerAwareTrait;
+
+    private $storeSerialized;
+    private $values = [];
+    private $expiries = [];
+
+    /**
+     * Returns all cached values, with cache miss as null.
+     *
+     * @return array
+     */
+    public function getValues()
+    {
+        return $this->values;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        CacheItem::validateKey($key);
+
+        return isset($this->expiries[$key]) && ($this->expiries[$key] > time() || !$this->deleteItem($key));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->values = $this->expiries = [];
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        CacheItem::validateKey($key);
+
+        unset($this->values[$key], $this->expiries[$key]);
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->clear();
+    }
+
+    private function generateItems(array $keys, $now, $f)
+    {
+        foreach ($keys as $i => $key) {
+            try {
+                if (!$isHit = isset($this->expiries[$key]) && ($this->expiries[$key] > $now || !$this->deleteItem($key))) {
+                    $this->values[$key] = $value = null;
+                } elseif (!$this->storeSerialized) {
+                    $value = $this->values[$key];
+                } elseif ('b:0;' === $value = $this->values[$key]) {
+                    $value = false;
+                } elseif (false === $value = unserialize($value)) {
+                    $this->values[$key] = $value = null;
+                    $isHit = false;
+                }
+            } catch (\Exception $e) {
+                CacheItem::log($this->logger, 'Failed to unserialize key "{key}"', ['key' => $key, 'exception' => $e]);
+                $this->values[$key] = $value = null;
+                $isHit = false;
+            }
+            unset($keys[$i]);
+
+            yield $key => $f($key, $value, $isHit);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $f($key, null, false);
+        }
+    }
+}