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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\DependencyInjection\Argument;
- /**
- * @internal
- */
- class RewindableGenerator implements \IteratorAggregate, \Countable
- {
- private $generator;
- private $count;
- /**
- * @param int|callable $count
- */
- public function __construct(callable $generator, $count)
- {
- $this->generator = $generator;
- $this->count = $count;
- }
- public function getIterator(): \Traversable
- {
- $g = $this->generator;
- return $g();
- }
- public function count(): int
- {
- if (\is_callable($count = $this->count)) {
- $this->count = $count();
- }
- return $this->count;
- }
- }
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