Symfony Profiler

<?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\Marshaller\DefaultMarshaller;
use Symfony\Component\Cache\Marshaller\MarshallerInterface;
use Symfony\Component\Cache\PruneableInterface;
use Symfony\Component\Cache\Traits\FilesystemTrait;
class FilesystemAdapter extends AbstractAdapter implements PruneableInterface
{
use FilesystemTrait;
public function __construct(string $namespace = '', int $defaultLifetime = 0, string $directory = null, MarshallerInterface $marshaller = null)
{
$this->marshaller = $marshaller ?? new DefaultMarshaller();
parent::__construct('', $defaultLifetime);
$this->init($namespace, $directory);
}
}

vendor/symfony/cache/Adapter/FilesystemAdapter.php line 23