name : LazyIterator.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\Finder\Iterator; /** * @author Jérémy Derussé <jeremy@derusse.com> * * @internal */ class LazyIterator implements \IteratorAggregate { private \Closure $iteratorFactory; public function __construct(callable $iteratorFactory) { $this->iteratorFactory = $iteratorFactory(...); } public function getIterator(): \Traversable { yield from ($this->iteratorFactory)(); } }