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<?php
/**
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
declare(strict_types=1);
namespace loophp\iterators;
use CachingIterator;
use Iterator;
use IteratorAggregate;
use Traversable;
* @template TKey
* @template T
*
* @implements IteratorAggregate<TKey, T>
final class CachingIteratorAggregate implements IteratorAggregate
{
* @var CachingIterator<TKey, T>
private CachingIterator $cache;
* @var Iterator<TKey, T>
private Iterator $iterator;
* @param Iterator<TKey, T> $iterator
public function __construct(Iterator $iterator)
$this->iterator = $iterator;
$this->cache = new CachingIterator(
(new PackIterableAggregate($iterator))->getIterator(),
CachingIterator::FULL_CACHE
);
}
* @return Traversable<TKey, T>
public function getIterator(): Traversable
/** @var iterable<int, array{0: TKey, 1: T}> $it */
$it = $this->iterator->valid()
? $this->cache
: $this->cache->getCache();
yield from (new UnpackIterableAggregate($it))->getIterator();
loophp /
iterators
