name : AbstractFileExtractor.php <?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\Translation\Extractor; use Symfony\Component\Translation\Exception\InvalidArgumentException; /** * Base class used by classes that extract translation messages from files. * * @author Marcos D. Sánchez <marcosdsanchez@gmail.com> */ abstract class AbstractFileExtractor { protected function extractFiles(string|iterable $resource): iterable { if (is_iterable($resource)) { $files = []; foreach ($resource as $file) { if ($this->canBeExtracted($file)) { $files[] = $this->toSplFileInfo($file); } } } elseif (is_file($resource)) { $files = $this->canBeExtracted($resource) ? [$this->toSplFileInfo($resource)] : []; } else { $files = $this->extractFromDirectory($resource); } return $files; } private function toSplFileInfo(string $file): \SplFileInfo { return new \SplFileInfo($file); } /** * @throws InvalidArgumentException */ protected function isFile(string $file): bool { if (!is_file($file)) { throw new InvalidArgumentException(sprintf('The "%s" file does not exist.', $file)); } return true; } /** * @return bool */ abstract protected function canBeExtracted(string $file); /** * @return iterable */ abstract protected function extractFromDirectory(string|array $resource); }