47 lines
916 B
PHP
47 lines
916 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\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;
|
||
|
|
}
|
||
|
|
}
|