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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\HttpKernel\CacheWarmer; /** * Interface for classes that support warming their cache. * * @author Fabien Potencier <fabien@symfony.com> */ interface WarmableInterface { /** * Warms up the cache. * * @param string $cacheDir Where warm-up artifacts should be stored * @param string|null $buildDir Where read-only artifacts should go; null when called after compile-time * * @return string[] A list of classes or files to preload on PHP 7.4+ */ public function warmUp(string $cacheDir /* , string $buildDir = null */); }