vendor/symfony/config/ConfigCache.php line 52
<?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\Config;use Symfony\Component\Config\Resource\SelfCheckingResourceChecker;/*** ConfigCache caches arbitrary content in files on disk.** When in debug mode, those metadata resources that implement* \Symfony\Component\Config\Resource\SelfCheckingResourceInterface will* be used to check cache freshness.** @author Fabien Potencier <fabien@symfony.com>* @author Matthias Pigulla <mp@webfactory.de>*/class ConfigCache extends ResourceCheckerConfigCache{private bool $debug;/*** @param string $file The absolute cache path* @param bool $debug Whether debugging is enabled or not*/public function __construct(string $file, bool $debug){$this->debug = $debug;$checkers = [];if (true === $this->debug) {$checkers = [new SelfCheckingResourceChecker()];}parent::__construct($file, $checkers);}/*** Checks if the cache is still fresh.** This implementation always returns true when debug is off and the* cache file exists.*/public function isFresh(): bool{if (!$this->debug && is_file($this->getPath())) {return true;}return parent::isFresh();}}