mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-12-30 22:11:52 +00:00
33 lines
763 B
PHP
33 lines
763 B
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 instanceof \Closure ? $iteratorFactory : \Closure::fromCallable($iteratorFactory);
|
||
|
|
}
|
||
|
|
|
||
|
|
public function getIterator(): \Traversable
|
||
|
|
{
|
||
|
|
yield from ($this->iteratorFactory)();
|
||
|
|
}
|
||
|
|
}
|