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annotate vendor/symfony/dependency-injection/Argument/RewindableGenerator.php @ 19:fa3358dc1485 tip
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author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | 129ea1e6d783 |
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rev | line source |
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Chris@14 | 1 <?php |
Chris@14 | 2 |
Chris@14 | 3 /* |
Chris@14 | 4 * This file is part of the Symfony package. |
Chris@14 | 5 * |
Chris@14 | 6 * (c) Fabien Potencier <fabien@symfony.com> |
Chris@14 | 7 * |
Chris@14 | 8 * For the full copyright and license information, please view the LICENSE |
Chris@14 | 9 * file that was distributed with this source code. |
Chris@14 | 10 */ |
Chris@14 | 11 |
Chris@14 | 12 namespace Symfony\Component\DependencyInjection\Argument; |
Chris@14 | 13 |
Chris@14 | 14 /** |
Chris@14 | 15 * @internal |
Chris@14 | 16 */ |
Chris@14 | 17 class RewindableGenerator implements \IteratorAggregate, \Countable |
Chris@14 | 18 { |
Chris@14 | 19 private $generator; |
Chris@14 | 20 private $count; |
Chris@14 | 21 |
Chris@14 | 22 /** |
Chris@14 | 23 * @param callable $generator |
Chris@14 | 24 * @param int|callable $count |
Chris@14 | 25 */ |
Chris@14 | 26 public function __construct(callable $generator, $count) |
Chris@14 | 27 { |
Chris@14 | 28 $this->generator = $generator; |
Chris@14 | 29 $this->count = $count; |
Chris@14 | 30 } |
Chris@14 | 31 |
Chris@14 | 32 public function getIterator() |
Chris@14 | 33 { |
Chris@14 | 34 $g = $this->generator; |
Chris@14 | 35 |
Chris@14 | 36 return $g(); |
Chris@14 | 37 } |
Chris@14 | 38 |
Chris@14 | 39 public function count() |
Chris@14 | 40 { |
Chris@17 | 41 if (\is_callable($count = $this->count)) { |
Chris@14 | 42 $this->count = $count(); |
Chris@14 | 43 } |
Chris@14 | 44 |
Chris@14 | 45 return $this->count; |
Chris@14 | 46 } |
Chris@14 | 47 } |