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modules/ps_checkout/vendor/symfony/cache/.gitignore

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

modules/ps_checkout/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 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) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $getId = function ($key) { return $this->getId((string) $key); };
+        $this->mergeByLifetime = \Closure::bind(
+            static function ($deferred, $namespace, &$expiredIds) use ($getId, $defaultLifetime) {
+                $byLifetime = [];
+                $now = time();
+                $expiredIds = [];
+
+                foreach ($deferred as $key => $item) {
+                    if (null === $item->expiry) {
+                        $byLifetime[0 < $defaultLifetime ? $defaultLifetime : 0][$getId($key)] = $item->value;
+                    } elseif (0 === $item->expiry) {
+                        $byLifetime[0][$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 || (\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) && !filter_var(ini_get('apc.enable_cli'), \FILTER_VALIDATE_BOOLEAN))) {
+            return $fs;
+        }
+
+        $apcu = new ApcuAdapter($namespace, (int) $defaultLifetime / 5, $version);
+        if (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);
+        }
+    }
+}

modules/ps_checkout/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 = []);
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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;
+    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 = $defaultLifetime;
+        $this->storeSerialized = $storeSerialized;
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $value, $isHit) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($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 (0 === $expiry) {
+            $expiry = \PHP_INT_MAX;
+        }
+
+        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 < $this->defaultLifetime) {
+            $expiry = time() + $this->defaultLifetime;
+        }
+
+        $this->values[$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;
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Adapter/ChainAdapter.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\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 (\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) && $adapter instanceof ApcuAdapter && !filter_var(ini_get('apc.enable_cli'), \FILTER_VALIDATE_BOOLEAN)) {
+                continue; // skip putting APCu in the chain when the backend is disabled
+            }
+
+            if ($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->isHit = $sourceItem->isHit;
+
+                if (0 < $defaultLifetime) {
+                    $item->expiresAfter($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();
+            }
+        }
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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);
+        }
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Adapter/PhpArrayAdapter.php

@@ -0,0 +1,309 @@
+<?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 $fallbackPool A pool to fallback on when an item is not hit
+     *
+     * @return CacheItemPoolInterface
+     */
+    public static function create($file, CacheItemPoolInterface $fallbackPool)
+    {
+        if (\PHP_VERSION_ID >= 70000) {
+            if (!$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 = debug_backtrace();
+        $autoloadFrame = [
+            'function' => 'spl_autoload_call',
+            'args' => [$class],
+        ];
+
+        if (\PHP_VERSION_ID >= 80000 && isset($trace[1])) {
+            $callerFrame = $trace[1];
+        } elseif (false !== $i = array_search($autoloadFrame, $trace, true)) {
+            $callerFrame = $trace[++$i];
+        } else {
+            throw $e;
+        }
+
+        if (isset($callerFrame['function']) && !isset($callerFrame['class'])) {
+            switch ($callerFrame['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;
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Adapter/ProxyAdapter.php

@@ -0,0 +1,199 @@
+<?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;
+    private $defaultLifetime;
+
+    /**
+     * @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->defaultLifetime = $defaultLifetime;
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $innerItem) use ($poolHash) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $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 < $this->defaultLifetime) {
+            $expiry = time() + $this->defaultLifetime;
+        }
+
+        if ($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;
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Adapter/TagAwareAdapter.php

@@ -0,0 +1,393 @@
+<?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->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->expiry = 0;
+                    $tagsAdapter->saveDeferred($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;
+    }
+}

modules/ps_checkout/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);
+}

modules/ps_checkout/vendor/symfony/cache/Adapter/TraceableAdapter.php

@@ -0,0 +1,229 @@
+<?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) {
+            $this->pool->reset();
+        }
+
+        $this->clearCalls();
+    }
+
+    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;
+}

modules/ps_checkout/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);
+        }
+    }
+}

modules/ps_checkout/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

modules/ps_checkout/vendor/symfony/cache/CacheItem.php

@@ -0,0 +1,192 @@
+<?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 $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) {
+            $this->expiry = null;
+        } elseif ($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) {
+            $this->expiry = null;
+        } elseif ($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);
+        }
+    }
+}

modules/ps_checkout/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;
+    }
+}

modules/ps_checkout/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;
+    }
+}

modules/ps_checkout/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
+{
+}

modules/ps_checkout/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
+{
+}

modules/ps_checkout/vendor/symfony/cache/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2016-2020 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.

modules/ps_checkout/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();
+}

modules/ps_checkout/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)

modules/ps_checkout/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();
+}

modules/ps_checkout/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;
+        }
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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)));
+    }
+}

modules/ps_checkout/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();
+            }
+        }
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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;
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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
+     * @param CacheInterface $fallbackPool A pool to fallback on when an item is not hit
+     *
+     * @return CacheInterface
+     */
+    public static function create($file, CacheInterface $fallbackPool)
+    {
+        if (\PHP_VERSION_ID >= 70000) {
+            return new static($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;
+            }
+        }
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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);
+        }
+    }
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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;
+}

modules/ps_checkout/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);
+    }
+}

modules/ps_checkout/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;
+    }
+}

modules/ps_checkout/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);
+        }
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/DoctrineTrait.php

@@ -0,0 +1,98 @@
+<?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;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait DoctrineTrait
+{
+    private $provider;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        parent::reset();
+        $this->provider->setNamespace($this->provider->getNamespace());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        $unserializeCallbackHandler = ini_set('unserialize_callback_func', parent::class.'::handleUnserializeCallback');
+        try {
+            return $this->provider->fetchMultiple($ids);
+        } catch (\Error $e) {
+            $trace = $e->getTrace();
+
+            if (isset($trace[0]['function']) && !isset($trace[0]['class'])) {
+                switch ($trace[0]['function']) {
+                    case 'unserialize':
+                    case 'apcu_fetch':
+                    case 'apc_fetch':
+                        throw new \ErrorException($e->getMessage(), $e->getCode(), \E_ERROR, $e->getFile(), $e->getLine());
+                }
+            }
+
+            throw $e;
+        } finally {
+            ini_set('unserialize_callback_func', $unserializeCallbackHandler);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        return $this->provider->contains($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        $namespace = $this->provider->getNamespace();
+
+        return isset($namespace[0])
+            ? $this->provider->deleteAll()
+            : $this->provider->flushAll();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        $ok = true;
+        foreach ($ids as $id) {
+            $ok = $this->provider->delete($id) && $ok;
+        }
+
+        return $ok;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        return $this->provider->saveMultiple($values, $lifetime);
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/FilesystemCommonTrait.php

@@ -0,0 +1,138 @@
+<?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\Exception\InvalidArgumentException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait FilesystemCommonTrait
+{
+    private $directory;
+    private $tmp;
+
+    private function init($namespace, $directory)
+    {
+        if (!isset($directory[0])) {
+            $directory = sys_get_temp_dir().'/symfony-cache';
+        } else {
+            $directory = realpath($directory) ?: $directory;
+        }
+        if (isset($namespace[0])) {
+            if (preg_match('#[^-+_.A-Za-z0-9]#', $namespace, $match)) {
+                throw new InvalidArgumentException(sprintf('Namespace contains "%s" but only characters in [-+_.A-Za-z0-9] are allowed.', $match[0]));
+            }
+            $directory .= \DIRECTORY_SEPARATOR.$namespace;
+        }
+        if (!file_exists($directory)) {
+            @mkdir($directory, 0777, true);
+        }
+        $directory .= \DIRECTORY_SEPARATOR;
+        // On Windows the whole path is limited to 258 chars
+        if ('\\' === \DIRECTORY_SEPARATOR && \strlen($directory) > 234) {
+            throw new InvalidArgumentException(sprintf('Cache directory too long (%s).', $directory));
+        }
+
+        $this->directory = $directory;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        $ok = true;
+
+        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS)) as $file) {
+            $ok = ($file->isDir() || @unlink($file) || !file_exists($file)) && $ok;
+        }
+
+        return $ok;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        $ok = true;
+
+        foreach ($ids as $id) {
+            $file = $this->getFile($id);
+            $ok = (!file_exists($file) || @unlink($file) || !file_exists($file)) && $ok;
+        }
+
+        return $ok;
+    }
+
+    private function write($file, $data, $expiresAt = null)
+    {
+        set_error_handler(__CLASS__.'::throwError');
+        try {
+            if (null === $this->tmp) {
+                $this->tmp = $this->directory.uniqid('', true);
+            }
+            file_put_contents($this->tmp, $data);
+
+            if (null !== $expiresAt) {
+                touch($this->tmp, $expiresAt);
+            }
+
+            return rename($this->tmp, $file);
+        } finally {
+            restore_error_handler();
+        }
+    }
+
+    private function getFile($id, $mkdir = false)
+    {
+        $hash = str_replace('/', '-', base64_encode(hash('sha256', static::class.$id, true)));
+        $dir = $this->directory.strtoupper($hash[0].\DIRECTORY_SEPARATOR.$hash[1].\DIRECTORY_SEPARATOR);
+
+        if ($mkdir && !file_exists($dir)) {
+            @mkdir($dir, 0777, true);
+        }
+
+        return $dir.substr($hash, 2, 20);
+    }
+
+    /**
+     * @internal
+     */
+    public static function throwError($type, $message, $file, $line)
+    {
+        throw new \ErrorException($message, 0, $type, $file, $line);
+    }
+
+    public function __sleep()
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        if (method_exists(parent::class, '__destruct')) {
+            parent::__destruct();
+        }
+        if (null !== $this->tmp && file_exists($this->tmp)) {
+            unlink($this->tmp);
+        }
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/FilesystemTrait.php

@@ -0,0 +1,107 @@
+<?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\Exception\CacheException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author Rob Frawley 2nd <rmf@src.run>
+ *
+ * @internal
+ */
+trait FilesystemTrait
+{
+    use FilesystemCommonTrait;
+
+    /**
+     * @return bool
+     */
+    public function prune()
+    {
+        $time = time();
+        $pruned = true;
+
+        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
+            if (!$h = @fopen($file, 'rb')) {
+                continue;
+            }
+
+            if (($expiresAt = (int) fgets($h)) && $time >= $expiresAt) {
+                fclose($h);
+                $pruned = @unlink($file) && !file_exists($file) && $pruned;
+            } else {
+                fclose($h);
+            }
+        }
+
+        return $pruned;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        $values = [];
+        $now = time();
+
+        foreach ($ids as $id) {
+            $file = $this->getFile($id);
+            if (!file_exists($file) || !$h = @fopen($file, 'rb')) {
+                continue;
+            }
+            if (($expiresAt = (int) fgets($h)) && $now >= $expiresAt) {
+                fclose($h);
+                @unlink($file);
+            } else {
+                $i = rawurldecode(rtrim(fgets($h)));
+                $value = stream_get_contents($h);
+                fclose($h);
+                if ($i === $id) {
+                    $values[$id] = parent::unserialize($value);
+                }
+            }
+        }
+
+        return $values;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        $file = $this->getFile($id);
+
+        return file_exists($file) && (@filemtime($file) > time() || $this->doFetch([$id]));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        $ok = true;
+        $expiresAt = $lifetime ? (time() + $lifetime) : 0;
+
+        foreach ($values as $id => $value) {
+            $ok = $this->write($this->getFile($id, true), $expiresAt."\n".rawurlencode($id)."\n".serialize($value), $expiresAt) && $ok;
+        }
+
+        if (!$ok && !is_writable($this->directory)) {
+            throw new CacheException(sprintf('Cache directory is not writable (%s).', $this->directory));
+        }
+
+        return $ok;
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/MemcachedTrait.php

@@ -0,0 +1,297 @@
+<?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\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Rob Frawley 2nd <rmf@src.run>
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait MemcachedTrait
+{
+    private static $defaultClientOptions = [
+        'persistent_id' => null,
+        'username' => null,
+        'password' => null,
+        \Memcached::OPT_SERIALIZER => \Memcached::SERIALIZER_PHP,
+    ];
+
+    private $client;
+    private $lazyClient;
+
+    public static function isSupported()
+    {
+        return \extension_loaded('memcached') && version_compare(phpversion('memcached'), '2.2.0', '>=');
+    }
+
+    private function init(\Memcached $client, $namespace, $defaultLifetime)
+    {
+        if (!static::isSupported()) {
+            throw new CacheException('Memcached >= 2.2.0 is required.');
+        }
+        if ('Memcached' === \get_class($client)) {
+            $opt = $client->getOption(\Memcached::OPT_SERIALIZER);
+            if (\Memcached::SERIALIZER_PHP !== $opt && \Memcached::SERIALIZER_IGBINARY !== $opt) {
+                throw new CacheException('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
+            }
+            $this->maxIdLength -= \strlen($client->getOption(\Memcached::OPT_PREFIX_KEY));
+            $this->client = $client;
+        } else {
+            $this->lazyClient = $client;
+        }
+
+        parent::__construct($namespace, $defaultLifetime);
+        $this->enableVersioning();
+    }
+
+    /**
+     * Creates a Memcached instance.
+     *
+     * By default, the binary protocol, no block, and libketama compatible options are enabled.
+     *
+     * Examples for servers:
+     * - 'memcached://user:pass@localhost?weight=33'
+     * - [['localhost', 11211, 33]]
+     *
+     * @param array[]|string|string[] $servers An array of servers, a DSN, or an array of DSNs
+     * @param array                   $options An array of options
+     *
+     * @return \Memcached
+     *
+     * @throws \ErrorException When invalid options or servers are provided
+     */
+    public static function createConnection($servers, array $options = [])
+    {
+        if (\is_string($servers)) {
+            $servers = [$servers];
+        } elseif (!\is_array($servers)) {
+            throw new InvalidArgumentException(sprintf('MemcachedAdapter::createClient() expects array or string as first argument, "%s" given.', \gettype($servers)));
+        }
+        if (!static::isSupported()) {
+            throw new CacheException('Memcached >= 2.2.0 is required.');
+        }
+        set_error_handler(function ($type, $msg, $file, $line) { throw new \ErrorException($msg, 0, $type, $file, $line); });
+        try {
+            $options += static::$defaultClientOptions;
+            $client = new \Memcached($options['persistent_id']);
+            $username = $options['username'];
+            $password = $options['password'];
+
+            // parse any DSN in $servers
+            foreach ($servers as $i => $dsn) {
+                if (\is_array($dsn)) {
+                    continue;
+                }
+                if (0 !== strpos($dsn, 'memcached://')) {
+                    throw new InvalidArgumentException(sprintf('Invalid Memcached DSN: "%s" does not start with "memcached://".', $dsn));
+                }
+                $params = preg_replace_callback('#^memcached://(?:([^@]*+)@)?#', function ($m) use (&$username, &$password) {
+                    if (!empty($m[1])) {
+                        list($username, $password) = explode(':', $m[1], 2) + [1 => null];
+                    }
+
+                    return 'file://';
+                }, $dsn);
+                if (false === $params = parse_url($params)) {
+                    throw new InvalidArgumentException(sprintf('Invalid Memcached DSN: "%s".', $dsn));
+                }
+                if (!isset($params['host']) && !isset($params['path'])) {
+                    throw new InvalidArgumentException(sprintf('Invalid Memcached DSN: "%s".', $dsn));
+                }
+                if (isset($params['path']) && preg_match('#/(\d+)$#', $params['path'], $m)) {
+                    $params['weight'] = $m[1];
+                    $params['path'] = substr($params['path'], 0, -\strlen($m[0]));
+                }
+                $params += [
+                    'host' => isset($params['host']) ? $params['host'] : $params['path'],
+                    'port' => isset($params['host']) ? 11211 : null,
+                    'weight' => 0,
+                ];
+                if (isset($params['query'])) {
+                    parse_str($params['query'], $query);
+                    $params += $query;
+                    $options = $query + $options;
+                }
+
+                $servers[$i] = [$params['host'], $params['port'], $params['weight']];
+            }
+
+            // set client's options
+            unset($options['persistent_id'], $options['username'], $options['password'], $options['weight'], $options['lazy']);
+            $options = array_change_key_case($options, \CASE_UPPER);
+            $client->setOption(\Memcached::OPT_BINARY_PROTOCOL, true);
+            $client->setOption(\Memcached::OPT_NO_BLOCK, true);
+            $client->setOption(\Memcached::OPT_TCP_NODELAY, true);
+            if (!\array_key_exists('LIBKETAMA_COMPATIBLE', $options) && !\array_key_exists(\Memcached::OPT_LIBKETAMA_COMPATIBLE, $options)) {
+                $client->setOption(\Memcached::OPT_LIBKETAMA_COMPATIBLE, true);
+            }
+            foreach ($options as $name => $value) {
+                if (\is_int($name)) {
+                    continue;
+                }
+                if ('HASH' === $name || 'SERIALIZER' === $name || 'DISTRIBUTION' === $name) {
+                    $value = \constant('Memcached::'.$name.'_'.strtoupper($value));
+                }
+                $opt = \constant('Memcached::OPT_'.$name);
+
+                unset($options[$name]);
+                $options[$opt] = $value;
+            }
+            $client->setOptions($options);
+
+            // set client's servers, taking care of persistent connections
+            if (!$client->isPristine()) {
+                $oldServers = [];
+                foreach ($client->getServerList() as $server) {
+                    $oldServers[] = [$server['host'], $server['port']];
+                }
+
+                $newServers = [];
+                foreach ($servers as $server) {
+                    if (1 < \count($server)) {
+                        $server = array_values($server);
+                        unset($server[2]);
+                        $server[1] = (int) $server[1];
+                    }
+                    $newServers[] = $server;
+                }
+
+                if ($oldServers !== $newServers) {
+                    $client->resetServerList();
+                    $client->addServers($servers);
+                }
+            } else {
+                $client->addServers($servers);
+            }
+
+            if (null !== $username || null !== $password) {
+                if (!method_exists($client, 'setSaslAuthData')) {
+                    trigger_error('Missing SASL support: the memcached extension must be compiled with --enable-memcached-sasl.');
+                }
+                $client->setSaslAuthData($username, $password);
+            }
+
+            return $client;
+        } finally {
+            restore_error_handler();
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        if ($lifetime && $lifetime > 30 * 86400) {
+            $lifetime += time();
+        }
+
+        $encodedValues = [];
+        foreach ($values as $key => $value) {
+            $encodedValues[rawurlencode($key)] = $value;
+        }
+
+        return $this->checkResultCode($this->getClient()->setMulti($encodedValues, $lifetime));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        $unserializeCallbackHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback');
+        try {
+            $encodedIds = array_map('rawurlencode', $ids);
+
+            $encodedResult = $this->checkResultCode($this->getClient()->getMulti($encodedIds));
+
+            $result = [];
+            foreach ($encodedResult as $key => $value) {
+                $result[rawurldecode($key)] = $value;
+            }
+
+            return $result;
+        } catch (\Error $e) {
+            throw new \ErrorException($e->getMessage(), $e->getCode(), \E_ERROR, $e->getFile(), $e->getLine());
+        } finally {
+            ini_set('unserialize_callback_func', $unserializeCallbackHandler);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        return false !== $this->getClient()->get(rawurlencode($id)) || $this->checkResultCode(\Memcached::RES_SUCCESS === $this->client->getResultCode());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        $ok = true;
+        $encodedIds = array_map('rawurlencode', $ids);
+        foreach ($this->checkResultCode($this->getClient()->deleteMulti($encodedIds)) as $result) {
+            if (\Memcached::RES_SUCCESS !== $result && \Memcached::RES_NOTFOUND !== $result) {
+                $ok = false;
+                break;
+            }
+        }
+
+        return $ok;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        return '' === $namespace && $this->getClient()->flush();
+    }
+
+    private function checkResultCode($result)
+    {
+        $code = $this->client->getResultCode();
+
+        if (\Memcached::RES_SUCCESS === $code || \Memcached::RES_NOTFOUND === $code) {
+            return $result;
+        }
+
+        throw new CacheException('MemcachedAdapter client error: '.strtolower($this->client->getResultMessage()));
+    }
+
+    /**
+     * @return \Memcached
+     */
+    private function getClient()
+    {
+        if ($this->client) {
+            return $this->client;
+        }
+
+        $opt = $this->lazyClient->getOption(\Memcached::OPT_SERIALIZER);
+        if (\Memcached::SERIALIZER_PHP !== $opt && \Memcached::SERIALIZER_IGBINARY !== $opt) {
+            throw new CacheException('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
+        }
+        if ('' !== $prefix = (string) $this->lazyClient->getOption(\Memcached::OPT_PREFIX_KEY)) {
+            throw new CacheException(sprintf('MemcachedAdapter: "prefix_key" option must be empty when using proxified connections, "%s" given.', $prefix));
+        }
+
+        return $this->client = $this->lazyClient;
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/PdoTrait.php

@@ -0,0 +1,435 @@
+<?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 Doctrine\DBAL\Connection;
+use Doctrine\DBAL\DBALException;
+use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
+use Doctrine\DBAL\Schema\Schema;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @internal
+ */
+trait PdoTrait
+{
+    private $conn;
+    private $dsn;
+    private $driver;
+    private $serverVersion;
+    private $table = 'cache_items';
+    private $idCol = 'item_id';
+    private $dataCol = 'item_data';
+    private $lifetimeCol = 'item_lifetime';
+    private $timeCol = 'item_time';
+    private $username = '';
+    private $password = '';
+    private $connectionOptions = [];
+    private $namespace;
+
+    private function init($connOrDsn, $namespace, $defaultLifetime, array $options)
+    {
+        if (isset($namespace[0]) && preg_match('#[^-+.A-Za-z0-9]#', $namespace, $match)) {
+            throw new InvalidArgumentException(sprintf('Namespace contains "%s" but only characters in [-+.A-Za-z0-9] are allowed.', $match[0]));
+        }
+
+        if ($connOrDsn instanceof \PDO) {
+            if (\PDO::ERRMODE_EXCEPTION !== $connOrDsn->getAttribute(\PDO::ATTR_ERRMODE)) {
+                throw new InvalidArgumentException(sprintf('"%s" requires PDO error mode attribute be set to throw Exceptions (i.e. $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION)).', __CLASS__));
+            }
+
+            $this->conn = $connOrDsn;
+        } elseif ($connOrDsn instanceof Connection) {
+            $this->conn = $connOrDsn;
+        } elseif (\is_string($connOrDsn)) {
+            $this->dsn = $connOrDsn;
+        } else {
+            throw new InvalidArgumentException(sprintf('"%s" requires PDO or Doctrine\DBAL\Connection instance or DSN string as first argument, "%s" given.', __CLASS__, \is_object($connOrDsn) ? \get_class($connOrDsn) : \gettype($connOrDsn)));
+        }
+
+        $this->table = isset($options['db_table']) ? $options['db_table'] : $this->table;
+        $this->idCol = isset($options['db_id_col']) ? $options['db_id_col'] : $this->idCol;
+        $this->dataCol = isset($options['db_data_col']) ? $options['db_data_col'] : $this->dataCol;
+        $this->lifetimeCol = isset($options['db_lifetime_col']) ? $options['db_lifetime_col'] : $this->lifetimeCol;
+        $this->timeCol = isset($options['db_time_col']) ? $options['db_time_col'] : $this->timeCol;
+        $this->username = isset($options['db_username']) ? $options['db_username'] : $this->username;
+        $this->password = isset($options['db_password']) ? $options['db_password'] : $this->password;
+        $this->connectionOptions = isset($options['db_connection_options']) ? $options['db_connection_options'] : $this->connectionOptions;
+        $this->namespace = $namespace;
+
+        parent::__construct($namespace, $defaultLifetime);
+    }
+
+    /**
+     * Creates the table to store cache items which can be called once for setup.
+     *
+     * Cache ID are saved in a column of maximum length 255. Cache data is
+     * saved in a BLOB.
+     *
+     * @throws \PDOException    When the table already exists
+     * @throws DBALException    When the table already exists
+     * @throws \DomainException When an unsupported PDO driver is used
+     */
+    public function createTable()
+    {
+        // connect if we are not yet
+        $conn = $this->getConnection();
+
+        if ($conn instanceof Connection) {
+            $types = [
+                'mysql' => 'binary',
+                'sqlite' => 'text',
+                'pgsql' => 'string',
+                'oci' => 'string',
+                'sqlsrv' => 'string',
+            ];
+            if (!isset($types[$this->driver])) {
+                throw new \DomainException(sprintf('Creating the cache table is currently not implemented for PDO driver "%s".', $this->driver));
+            }
+
+            $schema = new Schema();
+            $table = $schema->createTable($this->table);
+            $table->addColumn($this->idCol, $types[$this->driver], ['length' => 255]);
+            $table->addColumn($this->dataCol, 'blob', ['length' => 16777215]);
+            $table->addColumn($this->lifetimeCol, 'integer', ['unsigned' => true, 'notnull' => false]);
+            $table->addColumn($this->timeCol, 'integer', ['unsigned' => true]);
+            $table->setPrimaryKey([$this->idCol]);
+
+            foreach ($schema->toSql($conn->getDatabasePlatform()) as $sql) {
+                if (method_exists($conn, 'executeStatement')) {
+                    $conn->executeStatement($sql);
+                } else {
+                    $conn->exec($sql);
+                }
+            }
+
+            return;
+        }
+
+        switch ($this->driver) {
+            case 'mysql':
+                // We use varbinary for the ID column because it prevents unwanted conversions:
+                // - character set conversions between server and client
+                // - trailing space removal
+                // - case-insensitivity
+                // - language processing like é == e
+                $sql = "CREATE TABLE $this->table ($this->idCol VARBINARY(255) NOT NULL PRIMARY KEY, $this->dataCol MEDIUMBLOB NOT NULL, $this->lifetimeCol INTEGER UNSIGNED, $this->timeCol INTEGER UNSIGNED NOT NULL) COLLATE utf8_bin, ENGINE = InnoDB";
+                break;
+            case 'sqlite':
+                $sql = "CREATE TABLE $this->table ($this->idCol TEXT NOT NULL PRIMARY KEY, $this->dataCol BLOB NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)";
+                break;
+            case 'pgsql':
+                $sql = "CREATE TABLE $this->table ($this->idCol VARCHAR(255) NOT NULL PRIMARY KEY, $this->dataCol BYTEA NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)";
+                break;
+            case 'oci':
+                $sql = "CREATE TABLE $this->table ($this->idCol VARCHAR2(255) NOT NULL PRIMARY KEY, $this->dataCol BLOB NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)";
+                break;
+            case 'sqlsrv':
+                $sql = "CREATE TABLE $this->table ($this->idCol VARCHAR(255) NOT NULL PRIMARY KEY, $this->dataCol VARBINARY(MAX) NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)";
+                break;
+            default:
+                throw new \DomainException(sprintf('Creating the cache table is currently not implemented for PDO driver "%s".', $this->driver));
+        }
+
+        if (method_exists($conn, 'executeStatement')) {
+            $conn->executeStatement($sql);
+        } else {
+            $conn->exec($sql);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        $deleteSql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= :time";
+
+        if ('' !== $this->namespace) {
+            $deleteSql .= " AND $this->idCol LIKE :namespace";
+        }
+
+        $delete = $this->getConnection()->prepare($deleteSql);
+        $delete->bindValue(':time', time(), \PDO::PARAM_INT);
+
+        if ('' !== $this->namespace) {
+            $delete->bindValue(':namespace', sprintf('%s%%', $this->namespace), \PDO::PARAM_STR);
+        }
+
+        return $delete->execute();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        $now = time();
+        $expired = [];
+
+        $sql = str_pad('', (\count($ids) << 1) - 1, '?,');
+        $sql = "SELECT $this->idCol, CASE WHEN $this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > ? THEN $this->dataCol ELSE NULL END FROM $this->table WHERE $this->idCol IN ($sql)";
+        $stmt = $this->getConnection()->prepare($sql);
+        $stmt->bindValue($i = 1, $now, \PDO::PARAM_INT);
+        foreach ($ids as $id) {
+            $stmt->bindValue(++$i, $id);
+        }
+        $result = $stmt->execute();
+
+        if (\is_object($result)) {
+            $result = $result->iterateNumeric();
+        } else {
+            $stmt->setFetchMode(\PDO::FETCH_NUM);
+            $result = $stmt;
+        }
+
+        foreach ($result as $row) {
+            if (null === $row[1]) {
+                $expired[] = $row[0];
+            } else {
+                yield $row[0] => parent::unserialize(\is_resource($row[1]) ? stream_get_contents($row[1]) : $row[1]);
+            }
+        }
+
+        if ($expired) {
+            $sql = str_pad('', (\count($expired) << 1) - 1, '?,');
+            $sql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= ? AND $this->idCol IN ($sql)";
+            $stmt = $this->getConnection()->prepare($sql);
+            $stmt->bindValue($i = 1, $now, \PDO::PARAM_INT);
+            foreach ($expired as $id) {
+                $stmt->bindValue(++$i, $id);
+            }
+            $stmt->execute();
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        $sql = "SELECT 1 FROM $this->table WHERE $this->idCol = :id AND ($this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > :time)";
+        $stmt = $this->getConnection()->prepare($sql);
+
+        $stmt->bindValue(':id', $id);
+        $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+        $result = $stmt->execute();
+
+        return (bool) (\is_object($result) ? $result->fetchOne() : $stmt->fetchColumn());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        $conn = $this->getConnection();
+
+        if ('' === $namespace) {
+            if ('sqlite' === $this->driver) {
+                $sql = "DELETE FROM $this->table";
+            } else {
+                $sql = "TRUNCATE TABLE $this->table";
+            }
+        } else {
+            $sql = "DELETE FROM $this->table WHERE $this->idCol LIKE '$namespace%'";
+        }
+
+        if (method_exists($conn, 'executeStatement')) {
+            $conn->executeStatement($sql);
+        } else {
+            $conn->exec($sql);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        $sql = str_pad('', (\count($ids) << 1) - 1, '?,');
+        $sql = "DELETE FROM $this->table WHERE $this->idCol IN ($sql)";
+        $stmt = $this->getConnection()->prepare($sql);
+        $stmt->execute(array_values($ids));
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        $serialized = [];
+        $failed = [];
+
+        foreach ($values as $id => $value) {
+            try {
+                $serialized[$id] = serialize($value);
+            } catch (\Exception $e) {
+                $failed[] = $id;
+            }
+        }
+
+        if (!$serialized) {
+            return $failed;
+        }
+
+        $conn = $this->getConnection();
+        $driver = $this->driver;
+        $insertSql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (:id, :data, :lifetime, :time)";
+
+        switch (true) {
+            case 'mysql' === $driver:
+                $sql = $insertSql." ON DUPLICATE KEY UPDATE $this->dataCol = VALUES($this->dataCol), $this->lifetimeCol = VALUES($this->lifetimeCol), $this->timeCol = VALUES($this->timeCol)";
+                break;
+            case 'oci' === $driver:
+                // DUAL is Oracle specific dummy table
+                $sql = "MERGE INTO $this->table USING DUAL ON ($this->idCol = ?) ".
+                    "WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
+                    "WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?";
+                break;
+            case 'sqlsrv' === $driver && version_compare($this->getServerVersion(), '10', '>='):
+                // MERGE is only available since SQL Server 2008 and must be terminated by semicolon
+                // It also requires HOLDLOCK according to http://weblogs.sqlteam.com/dang/archive/2009/01/31/UPSERT-Race-Condition-With-MERGE.aspx
+                $sql = "MERGE INTO $this->table WITH (HOLDLOCK) USING (SELECT 1 AS dummy) AS src ON ($this->idCol = ?) ".
+                    "WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
+                    "WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?;";
+                break;
+            case 'sqlite' === $driver:
+                $sql = 'INSERT OR REPLACE'.substr($insertSql, 6);
+                break;
+            case 'pgsql' === $driver && version_compare($this->getServerVersion(), '9.5', '>='):
+                $sql = $insertSql." ON CONFLICT ($this->idCol) DO UPDATE SET ($this->dataCol, $this->lifetimeCol, $this->timeCol) = (EXCLUDED.$this->dataCol, EXCLUDED.$this->lifetimeCol, EXCLUDED.$this->timeCol)";
+                break;
+            default:
+                $driver = null;
+                $sql = "UPDATE $this->table SET $this->dataCol = :data, $this->lifetimeCol = :lifetime, $this->timeCol = :time WHERE $this->idCol = :id";
+                break;
+        }
+
+        $now = time();
+        $lifetime = $lifetime ?: null;
+        $stmt = $conn->prepare($sql);
+
+        if ('sqlsrv' === $driver || 'oci' === $driver) {
+            $stmt->bindParam(1, $id);
+            $stmt->bindParam(2, $id);
+            $stmt->bindParam(3, $data, \PDO::PARAM_LOB);
+            $stmt->bindValue(4, $lifetime, \PDO::PARAM_INT);
+            $stmt->bindValue(5, $now, \PDO::PARAM_INT);
+            $stmt->bindParam(6, $data, \PDO::PARAM_LOB);
+            $stmt->bindValue(7, $lifetime, \PDO::PARAM_INT);
+            $stmt->bindValue(8, $now, \PDO::PARAM_INT);
+        } else {
+            $stmt->bindParam(':id', $id);
+            $stmt->bindParam(':data', $data, \PDO::PARAM_LOB);
+            $stmt->bindValue(':lifetime', $lifetime, \PDO::PARAM_INT);
+            $stmt->bindValue(':time', $now, \PDO::PARAM_INT);
+        }
+        if (null === $driver) {
+            $insertStmt = $conn->prepare($insertSql);
+
+            $insertStmt->bindParam(':id', $id);
+            $insertStmt->bindParam(':data', $data, \PDO::PARAM_LOB);
+            $insertStmt->bindValue(':lifetime', $lifetime, \PDO::PARAM_INT);
+            $insertStmt->bindValue(':time', $now, \PDO::PARAM_INT);
+        }
+
+        foreach ($serialized as $id => $data) {
+            $result = $stmt->execute();
+
+            if (null === $driver && !(\is_object($result) ? $result->rowCount() : $stmt->rowCount())) {
+                try {
+                    $insertStmt->execute();
+                } catch (DBALException $e) {
+                } catch (\PDOException $e) {
+                    // A concurrent write won, let it be
+                }
+            }
+        }
+
+        return $failed;
+    }
+
+    /**
+     * @return \PDO|Connection
+     */
+    private function getConnection()
+    {
+        if (null === $this->conn) {
+            $this->conn = new \PDO($this->dsn, $this->username, $this->password, $this->connectionOptions);
+            $this->conn->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+        }
+        if (null === $this->driver) {
+            if ($this->conn instanceof \PDO) {
+                $this->driver = $this->conn->getAttribute(\PDO::ATTR_DRIVER_NAME);
+            } else {
+                $driver = $this->conn->getDriver();
+
+                switch (true) {
+                    case $driver instanceof \Doctrine\DBAL\Driver\AbstractMySQLDriver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\DrizzlePDOMySql\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\Mysqli\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDOMySql\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDO\MySQL\Driver:
+                        $this->driver = 'mysql';
+                        break;
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDOSqlite\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDO\SQLite\Driver:
+                        $this->driver = 'sqlite';
+                        break;
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDOPgSql\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDO\PgSQL\Driver:
+                        $this->driver = 'pgsql';
+                        break;
+                    case $driver instanceof \Doctrine\DBAL\Driver\OCI8\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDOOracle\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDO\OCI\Driver:
+                        $this->driver = 'oci';
+                        break;
+                    case $driver instanceof \Doctrine\DBAL\Driver\SQLSrv\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDOSqlsrv\Driver:
+                    case $driver instanceof \Doctrine\DBAL\Driver\PDO\SQLSrv\Driver:
+                        $this->driver = 'sqlsrv';
+                        break;
+                    default:
+                        $this->driver = \get_class($driver);
+                        break;
+                }
+            }
+        }
+
+        return $this->conn;
+    }
+
+    /**
+     * @return string
+     */
+    private function getServerVersion()
+    {
+        if (null === $this->serverVersion) {
+            $conn = $this->conn instanceof \PDO ? $this->conn : $this->conn->getWrappedConnection();
+            if ($conn instanceof \PDO) {
+                $this->serverVersion = $conn->getAttribute(\PDO::ATTR_SERVER_VERSION);
+            } elseif ($conn instanceof ServerInfoAwareConnection) {
+                $this->serverVersion = $conn->getServerVersion();
+            } else {
+                $this->serverVersion = '0';
+            }
+        }
+
+        return $this->serverVersion;
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/PhpArrayTrait.php

@@ -0,0 +1,152 @@
+<?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\InvalidArgumentException;
+
+/**
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait PhpArrayTrait
+{
+    use ProxyTrait;
+
+    private $file;
+    private $values;
+    private $zendDetectUnicode;
+
+    private static $valuesCache = [];
+
+    /**
+     * Store an array of cached values.
+     *
+     * @param array $values The cached values
+     */
+    public function warmUp(array $values)
+    {
+        if (file_exists($this->file)) {
+            if (!is_file($this->file)) {
+                throw new InvalidArgumentException(sprintf('Cache path exists and is not a file: "%s".', $this->file));
+            }
+
+            if (!is_writable($this->file)) {
+                throw new InvalidArgumentException(sprintf('Cache file is not writable: "%s".', $this->file));
+            }
+        } else {
+            $directory = \dirname($this->file);
+
+            if (!is_dir($directory) && !@mkdir($directory, 0777, true)) {
+                throw new InvalidArgumentException(sprintf('Cache directory does not exist and cannot be created: "%s".', $directory));
+            }
+
+            if (!is_writable($directory)) {
+                throw new InvalidArgumentException(sprintf('Cache directory is not writable: "%s".', $directory));
+            }
+        }
+
+        $dump = <<<'EOF'
+<?php
+
+// This file has been auto-generated by the Symfony Cache Component.
+
+return [
+
+
+EOF;
+
+        foreach ($values as $key => $value) {
+            CacheItem::validateKey(\is_int($key) ? (string) $key : $key);
+
+            if (null === $value || \is_object($value)) {
+                try {
+                    $value = serialize($value);
+                } catch (\Exception $e) {
+                    throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable "%s" value.', $key, \get_class($value)), 0, $e);
+                }
+            } elseif (\is_array($value)) {
+                try {
+                    $serialized = serialize($value);
+                    $unserialized = unserialize($serialized);
+                } catch (\Exception $e) {
+                    throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable array value.', $key), 0, $e);
+                }
+                // Store arrays serialized if they contain any objects or references
+                if ($unserialized !== $value || (false !== strpos($serialized, ';R:') && preg_match('/;R:[1-9]/', $serialized))) {
+                    $value = $serialized;
+                }
+            } elseif (\is_string($value)) {
+                // Serialize strings if they could be confused with serialized objects or arrays
+                if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
+                    $value = serialize($value);
+                }
+            } elseif (!is_scalar($value)) {
+                throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable "%s" value.', $key, \gettype($value)));
+            }
+
+            $dump .= var_export($key, true).' => '.var_export($value, true).",\n";
+        }
+
+        $dump .= "\n];\n";
+        $dump = str_replace("' . \"\\0\" . '", "\0", $dump);
+
+        $tmpFile = uniqid($this->file, true);
+
+        file_put_contents($tmpFile, $dump);
+        @chmod($tmpFile, 0666 & ~umask());
+        unset($serialized, $unserialized, $value, $dump);
+
+        @rename($tmpFile, $this->file);
+        unset(self::$valuesCache[$this->file]);
+
+        $this->initialize();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->values = [];
+
+        $cleared = @unlink($this->file) || !file_exists($this->file);
+        unset(self::$valuesCache[$this->file]);
+
+        return $this->pool->clear() && $cleared;
+    }
+
+    /**
+     * Load the cache file.
+     */
+    private function initialize()
+    {
+        if (isset(self::$valuesCache[$this->file])) {
+            $this->values = self::$valuesCache[$this->file];
+
+            return;
+        }
+
+        if ($this->zendDetectUnicode) {
+            $zmb = ini_set('zend.detect_unicode', 0);
+        }
+        try {
+            $this->values = self::$valuesCache[$this->file] = file_exists($this->file) ? (include $this->file ?: []) : [];
+        } finally {
+            if ($this->zendDetectUnicode) {
+                ini_set('zend.detect_unicode', $zmb);
+            }
+        }
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/PhpFilesTrait.php

@@ -0,0 +1,158 @@
+<?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\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Piotr Stankowski <git@trakos.pl>
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author Rob Frawley 2nd <rmf@src.run>
+ *
+ * @internal
+ */
+trait PhpFilesTrait
+{
+    use FilesystemCommonTrait;
+
+    private $includeHandler;
+    private $zendDetectUnicode;
+
+    public static function isSupported()
+    {
+        return \function_exists('opcache_invalidate') && filter_var(ini_get('opcache.enable'), \FILTER_VALIDATE_BOOLEAN);
+    }
+
+    /**
+     * @return bool
+     */
+    public function prune()
+    {
+        $time = time();
+        $pruned = true;
+        $allowCompile = 'cli' !== \PHP_SAPI || filter_var(ini_get('opcache.enable_cli'), \FILTER_VALIDATE_BOOLEAN);
+
+        set_error_handler($this->includeHandler);
+        try {
+            foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
+                list($expiresAt) = include $file;
+
+                if ($time >= $expiresAt) {
+                    $pruned = @unlink($file) && !file_exists($file) && $pruned;
+
+                    if ($allowCompile) {
+                        @opcache_invalidate($file, true);
+                    }
+                }
+            }
+        } finally {
+            restore_error_handler();
+        }
+
+        return $pruned;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        $values = [];
+        $now = time();
+
+        if ($this->zendDetectUnicode) {
+            $zmb = ini_set('zend.detect_unicode', 0);
+        }
+        set_error_handler($this->includeHandler);
+        try {
+            foreach ($ids as $id) {
+                try {
+                    $file = $this->getFile($id);
+                    list($expiresAt, $values[$id]) = include $file;
+                    if ($now >= $expiresAt) {
+                        unset($values[$id]);
+                    }
+                } catch (\Exception $e) {
+                    continue;
+                }
+            }
+        } finally {
+            restore_error_handler();
+            if ($this->zendDetectUnicode) {
+                ini_set('zend.detect_unicode', $zmb);
+            }
+        }
+
+        foreach ($values as $id => $value) {
+            if ('N;' === $value) {
+                $values[$id] = null;
+            } elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+                $values[$id] = parent::unserialize($value);
+            }
+        }
+
+        return $values;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        return (bool) $this->doFetch([$id]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        $ok = true;
+        $data = [$lifetime ? time() + $lifetime : \PHP_INT_MAX, ''];
+        $allowCompile = 'cli' !== \PHP_SAPI || filter_var(ini_get('opcache.enable_cli'), \FILTER_VALIDATE_BOOLEAN);
+
+        foreach ($values as $key => $value) {
+            if (null === $value || \is_object($value)) {
+                $value = serialize($value);
+            } elseif (\is_array($value)) {
+                $serialized = serialize($value);
+                $unserialized = parent::unserialize($serialized);
+                // Store arrays serialized if they contain any objects or references
+                if ($unserialized !== $value || (false !== strpos($serialized, ';R:') && preg_match('/;R:[1-9]/', $serialized))) {
+                    $value = $serialized;
+                }
+            } elseif (\is_string($value)) {
+                // Serialize strings if they could be confused with serialized objects or arrays
+                if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
+                    $value = serialize($value);
+                }
+            } elseif (!is_scalar($value)) {
+                throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable "%s" value.', $key, \gettype($value)));
+            }
+
+            $data[1] = $value;
+            $file = $this->getFile($key, true);
+            $ok = $this->write($file, '<?php return '.var_export($data, true).';') && $ok;
+
+            if ($allowCompile) {
+                @opcache_invalidate($file, true);
+            }
+        }
+
+        if (!$ok && !is_writable($this->directory)) {
+            throw new CacheException(sprintf('Cache directory is not writable (%s).', $this->directory));
+        }
+
+        return $ok;
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/ProxyTrait.php

@@ -0,0 +1,43 @@
+<?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\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait ProxyTrait
+{
+    private $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();
+        }
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/RedisProxy.php

@@ -0,0 +1,65 @@
+<?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;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+class RedisProxy
+{
+    private $redis;
+    private $initializer;
+    private $ready = false;
+
+    public function __construct(\Redis $redis, \Closure $initializer)
+    {
+        $this->redis = $redis;
+        $this->initializer = $initializer;
+    }
+
+    public function __call($method, array $args)
+    {
+        $this->ready ?: $this->ready = $this->initializer->__invoke($this->redis);
+
+        return \call_user_func_array([$this->redis, $method], $args);
+    }
+
+    public function hscan($strKey, &$iIterator, $strPattern = null, $iCount = null)
+    {
+        $this->ready ?: $this->ready = $this->initializer->__invoke($this->redis);
+
+        return $this->redis->hscan($strKey, $iIterator, $strPattern, $iCount);
+    }
+
+    public function scan(&$iIterator, $strPattern = null, $iCount = null)
+    {
+        $this->ready ?: $this->ready = $this->initializer->__invoke($this->redis);
+
+        return $this->redis->scan($iIterator, $strPattern, $iCount);
+    }
+
+    public function sscan($strKey, &$iIterator, $strPattern = null, $iCount = null)
+    {
+        $this->ready ?: $this->ready = $this->initializer->__invoke($this->redis);
+
+        return $this->redis->sscan($strKey, $iIterator, $strPattern, $iCount);
+    }
+
+    public function zscan($strKey, &$iIterator, $strPattern = null, $iCount = null)
+    {
+        $this->ready ?: $this->ready = $this->initializer->__invoke($this->redis);
+
+        return $this->redis->zscan($strKey, $iIterator, $strPattern, $iCount);
+    }
+}

modules/ps_checkout/vendor/symfony/cache/Traits/RedisTrait.php

@@ -0,0 +1,382 @@
+<?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 Predis\Connection\Aggregate\ClusterInterface;
+use Predis\Connection\Aggregate\RedisCluster;
+use Predis\Connection\Factory;
+use Predis\Response\Status;
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Aurimas Niekis <aurimas@niekis.lt>
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait RedisTrait
+{
+    private static $defaultConnectionOptions = [
+        'class' => null,
+        'persistent' => 0,
+        'persistent_id' => null,
+        'timeout' => 30,
+        'read_timeout' => 0,
+        'retry_interval' => 0,
+        'lazy' => false,
+    ];
+    private $redis;
+
+    /**
+     * @param \Redis|\RedisArray|\RedisCluster|\Predis\Client $redisClient
+     */
+    private function init($redisClient, $namespace = '', $defaultLifetime = 0)
+    {
+        parent::__construct($namespace, $defaultLifetime);
+
+        if (preg_match('#[^-+_.A-Za-z0-9]#', $namespace, $match)) {
+            throw new InvalidArgumentException(sprintf('RedisAdapter namespace contains "%s" but only characters in [-+_.A-Za-z0-9] are allowed.', $match[0]));
+        }
+        if (!$redisClient instanceof \Redis && !$redisClient instanceof \RedisArray && !$redisClient instanceof \RedisCluster && !$redisClient instanceof \Predis\Client && !$redisClient instanceof RedisProxy) {
+            throw new InvalidArgumentException(sprintf('"%s()" expects parameter 1 to be Redis, RedisArray, RedisCluster or Predis\Client, "%s" given.', __METHOD__, \is_object($redisClient) ? \get_class($redisClient) : \gettype($redisClient)));
+        }
+        $this->redis = $redisClient;
+    }
+
+    /**
+     * Creates a Redis connection using a DSN configuration.
+     *
+     * Example DSN:
+     *   - redis://localhost
+     *   - redis://example.com:1234
+     *   - redis://secret@example.com/13
+     *   - redis:///var/run/redis.sock
+     *   - redis://secret@/var/run/redis.sock/13
+     *
+     * @param string $dsn
+     * @param array  $options See self::$defaultConnectionOptions
+     *
+     * @throws InvalidArgumentException when the DSN is invalid
+     *
+     * @return \Redis|\Predis\Client According to the "class" option
+     */
+    public static function createConnection($dsn, array $options = [])
+    {
+        if (0 !== strpos($dsn, 'redis://')) {
+            throw new InvalidArgumentException(sprintf('Invalid Redis DSN: "%s" does not start with "redis://".', $dsn));
+        }
+        $params = preg_replace_callback('#^redis://(?:(?:[^:@]*+:)?([^@]*+)@)?#', function ($m) use (&$auth) {
+            if (isset($m[1])) {
+                $auth = $m[1];
+            }
+
+            return 'file://';
+        }, $dsn);
+        if (false === $params = parse_url($params)) {
+            throw new InvalidArgumentException(sprintf('Invalid Redis DSN: "%s".', $dsn));
+        }
+        if (!isset($params['host']) && !isset($params['path'])) {
+            throw new InvalidArgumentException(sprintf('Invalid Redis DSN: "%s".', $dsn));
+        }
+        if (isset($params['path']) && preg_match('#/(\d+)$#', $params['path'], $m)) {
+            $params['dbindex'] = $m[1];
+            $params['path'] = substr($params['path'], 0, -\strlen($m[0]));
+        }
+        if (isset($params['host'])) {
+            $scheme = 'tcp';
+        } else {
+            $scheme = 'unix';
+        }
+        $params += [
+            'host' => isset($params['host']) ? $params['host'] : $params['path'],
+            'port' => isset($params['host']) ? 6379 : null,
+            'dbindex' => 0,
+        ];
+        if (isset($params['query'])) {
+            parse_str($params['query'], $query);
+            $params += $query;
+        }
+        $params += $options + self::$defaultConnectionOptions;
+        if (null === $params['class'] && !\extension_loaded('redis') && !class_exists(\Predis\Client::class)) {
+            throw new CacheException(sprintf('Cannot find the "redis" extension, and "predis/predis" is not installed: "%s".', $dsn));
+        }
+        $class = null === $params['class'] ? (\extension_loaded('redis') ? \Redis::class : \Predis\Client::class) : $params['class'];
+
+        if (is_a($class, \Redis::class, true)) {
+            $connect = $params['persistent'] || $params['persistent_id'] ? 'pconnect' : 'connect';
+            $redis = new $class();
+
+            $initializer = function ($redis) use ($connect, $params, $dsn, $auth) {
+                try {
+                    @$redis->{$connect}($params['host'], $params['port'], $params['timeout'], $params['persistent_id'], $params['retry_interval']);
+
+                    set_error_handler(function ($type, $msg) use (&$error) { $error = $msg; });
+                    $isConnected = $redis->isConnected();
+                    restore_error_handler();
+                    if (!$isConnected) {
+                        $error = preg_match('/^Redis::p?connect\(\): (.*)/', $error, $error) ? sprintf(' (%s)', $error[1]) : '';
+                        throw new InvalidArgumentException(sprintf('Redis connection "%s" failed: ', $dsn).$error.'.');
+                    }
+
+                    if ((null !== $auth && !$redis->auth($auth))
+                        || ($params['dbindex'] && !$redis->select($params['dbindex']))
+                        || ($params['read_timeout'] && !$redis->setOption(\Redis::OPT_READ_TIMEOUT, $params['read_timeout']))
+                    ) {
+                        $e = preg_replace('/^ERR /', '', $redis->getLastError());
+                        throw new InvalidArgumentException(sprintf('Redis connection "%s" failed: ', $dsn).$e.'.');
+                    }
+                } catch (\RedisException $e) {
+                    throw new InvalidArgumentException(sprintf('Redis connection "%s" failed: ', $dsn).$e->getMessage());
+                }
+
+                return true;
+            };
+
+            if ($params['lazy']) {
+                $redis = new RedisProxy($redis, $initializer);
+            } else {
+                $initializer($redis);
+            }
+        } elseif (is_a($class, \Predis\Client::class, true)) {
+            $params['scheme'] = $scheme;
+            $params['database'] = $params['dbindex'] ?: null;
+            $params['password'] = $auth;
+            $redis = new $class((new Factory())->create($params));
+        } elseif (class_exists($class, false)) {
+            throw new InvalidArgumentException(sprintf('"%s" is not a subclass of "Redis" or "Predis\Client".', $class));
+        } else {
+            throw new InvalidArgumentException(sprintf('Class "%s" does not exist.', $class));
+        }
+
+        return $redis;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        if (!$ids) {
+            return [];
+        }
+
+        $result = [];
+
+        if ($this->redis instanceof \Predis\Client && $this->redis->getConnection() instanceof ClusterInterface) {
+            $values = $this->pipeline(function () use ($ids) {
+                foreach ($ids as $id) {
+                    yield 'get' => [$id];
+                }
+            });
+        } else {
+            $values = $this->redis->mget($ids);
+
+            if (!\is_array($values) || \count($values) !== \count($ids)) {
+                return [];
+            }
+
+            $values = array_combine($ids, $values);
+        }
+
+        foreach ($values as $id => $v) {
+            if ($v) {
+                $result[$id] = parent::unserialize($v);
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        return (bool) $this->redis->exists($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        $cleared = true;
+        $hosts = [$this->redis];
+        $evalArgs = [[$namespace], 0];
+
+        if ($this->redis instanceof \Predis\Client) {
+            $evalArgs = [0, $namespace];
+
+            $connection = $this->redis->getConnection();
+            if ($connection instanceof ClusterInterface && $connection instanceof \Traversable) {
+                $hosts = [];
+                foreach ($connection as $c) {
+                    $hosts[] = new \Predis\Client($c);
+                }
+            }
+        } elseif ($this->redis instanceof \RedisArray) {
+            $hosts = [];
+            foreach ($this->redis->_hosts() as $host) {
+                $hosts[] = $this->redis->_instance($host);
+            }
+        } elseif ($this->redis instanceof \RedisCluster) {
+            $hosts = [];
+            foreach ($this->redis->_masters() as $host) {
+                $hosts[] = $h = new \Redis();
+                $h->connect($host[0], $host[1]);
+            }
+        }
+        foreach ($hosts as $host) {
+            if (!isset($namespace[0])) {
+                $cleared = $host->flushDb() && $cleared;
+                continue;
+            }
+
+            $info = $host->info('Server');
+            $info = isset($info['Server']) ? $info['Server'] : $info;
+
+            if (!version_compare($info['redis_version'], '2.8', '>=')) {
+                // As documented in Redis documentation (http://redis.io/commands/keys) using KEYS
+                // can hang your server when it is executed against large databases (millions of items).
+                // Whenever you hit this scale, you should really consider upgrading to Redis 2.8 or above.
+                $cleared = $host->eval("local keys=redis.call('KEYS',ARGV[1]..'*') for i=1,#keys,5000 do redis.call('DEL',unpack(keys,i,math.min(i+4999,#keys))) end return 1", $evalArgs[0], $evalArgs[1]) && $cleared;
+                continue;
+            }
+
+            $cursor = null;
+            do {
+                $keys = $host instanceof \Predis\Client ? $host->scan($cursor, 'MATCH', $namespace.'*', 'COUNT', 1000) : $host->scan($cursor, $namespace.'*', 1000);
+                if (isset($keys[1]) && \is_array($keys[1])) {
+                    $cursor = $keys[0];
+                    $keys = $keys[1];
+                }
+                if ($keys) {
+                    $this->doDelete($keys);
+                }
+            } while ($cursor = (int) $cursor);
+        }
+
+        return $cleared;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        if (!$ids) {
+            return true;
+        }
+
+        if ($this->redis instanceof \Predis\Client && $this->redis->getConnection() instanceof ClusterInterface) {
+            $this->pipeline(function () use ($ids) {
+                foreach ($ids as $id) {
+                    yield 'del' => [$id];
+                }
+            })->rewind();
+        } else {
+            $this->redis->del($ids);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        $serialized = [];
+        $failed = [];
+
+        foreach ($values as $id => $value) {
+            try {
+                $serialized[$id] = serialize($value);
+            } catch (\Exception $e) {
+                $failed[] = $id;
+            }
+        }
+
+        if (!$serialized) {
+            return $failed;
+        }
+
+        $results = $this->pipeline(function () use ($serialized, $lifetime) {
+            foreach ($serialized as $id => $value) {
+                if (0 >= $lifetime) {
+                    yield 'set' => [$id, $value];
+                } else {
+                    yield 'setEx' => [$id, $lifetime, $value];
+                }
+            }
+        });
+        foreach ($results as $id => $result) {
+            if (true !== $result && (!$result instanceof Status || $result !== Status::get('OK'))) {
+                $failed[] = $id;
+            }
+        }
+
+        return $failed;
+    }
+
+    private function pipeline(\Closure $generator)
+    {
+        $ids = [];
+
+        if ($this->redis instanceof \RedisCluster || ($this->redis instanceof \Predis\Client && $this->redis->getConnection() instanceof RedisCluster)) {
+            // phpredis & predis don't support pipelining with RedisCluster
+            // see https://github.com/phpredis/phpredis/blob/develop/cluster.markdown#pipelining
+            // see https://github.com/nrk/predis/issues/267#issuecomment-123781423
+            $results = [];
+            foreach ($generator() as $command => $args) {
+                $results[] = \call_user_func_array([$this->redis, $command], $args);
+                $ids[] = $args[0];
+            }
+        } elseif ($this->redis instanceof \Predis\Client) {
+            $results = $this->redis->pipeline(function ($redis) use ($generator, &$ids) {
+                foreach ($generator() as $command => $args) {
+                    \call_user_func_array([$redis, $command], $args);
+                    $ids[] = $args[0];
+                }
+            });
+        } elseif ($this->redis instanceof \RedisArray) {
+            $connections = $results = $ids = [];
+            foreach ($generator() as $command => $args) {
+                if (!isset($connections[$h = $this->redis->_target($args[0])])) {
+                    $connections[$h] = [$this->redis->_instance($h), -1];
+                    $connections[$h][0]->multi(\Redis::PIPELINE);
+                }
+                \call_user_func_array([$connections[$h][0], $command], $args);
+                $results[] = [$h, ++$connections[$h][1]];
+                $ids[] = $args[0];
+            }
+            foreach ($connections as $h => $c) {
+                $connections[$h] = $c[0]->exec();
+            }
+            foreach ($results as $k => list($h, $c)) {
+                $results[$k] = $connections[$h][$c];
+            }
+        } else {
+            $this->redis->multi(\Redis::PIPELINE);
+            foreach ($generator() as $command => $args) {
+                \call_user_func_array([$this->redis, $command], $args);
+                $ids[] = $args[0];
+            }
+            $results = $this->redis->exec();
+        }
+
+        foreach ($ids as $k => $id) {
+            yield $id => $results[$k];
+        }
+    }
+}

modules/ps_checkout/vendor/symfony/cache/composer.json

@@ -0,0 +1,45 @@
+{
+    "name": "symfony/cache",
+    "type": "library",
+    "description": "Symfony Cache component with PSR-6, PSR-16, and tags",
+    "keywords": ["caching", "psr6"],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nicolas Grekas",
+            "email": "p@tchwork.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "provide": {
+        "psr/cache-implementation": "1.0",
+        "psr/simple-cache-implementation": "1.0"
+    },
+    "require": {
+        "php": "^5.5.9|>=7.0.8",
+        "psr/cache": "~1.0",
+        "psr/log": "~1.0",
+        "psr/simple-cache": "^1.0",
+        "symfony/polyfill-apcu": "~1.1"
+    },
+    "require-dev": {
+        "cache/integration-tests": "dev-master",
+        "doctrine/cache": "^1.6",
+        "doctrine/dbal": "^2.4|^3.0",
+        "predis/predis": "^1.0"
+    },
+    "conflict": {
+        "symfony/var-dumper": "<3.3"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\Cache\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev"
+}

modules/ps_checkout/vendor/symfony/cache/phpunit.xml.dist

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/5.2/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="vendor/autoload.php"
+         failOnRisky="true"
+         failOnWarning="true"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+        <env name="REDIS_HOST" value="localhost" />
+        <env name="MEMCACHED_HOST" value="localhost" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Symfony Cache Component Test Suite">
+            <directory>./Tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./</directory>
+            <exclude>
+                <directory>./Tests</directory>
+                <directory>./vendor</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+
+    <listeners>
+        <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener">
+            <arguments>
+                <array>
+                    <element key="time-sensitive">
+                        <array>
+                            <element key="0"><string>Cache\IntegrationTests</string></element>
+                            <element key="1"><string>Doctrine\Common\Cache</string></element>
+                            <element key="2"><string>Symfony\Component\Cache</string></element>
+                            <element key="3"><string>Symfony\Component\Cache\Tests\Fixtures</string></element>
+                            <element key="4"><string>Symfony\Component\Cache\Traits</string></element>
+                        </array>
+                    </element>
+                </array>
+            </arguments>
+        </listener>
+    </listeners>
+</phpunit>