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Zip.php
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/
Zip.php
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<?php
declare(strict_types=1);
namespace loophp\collection\Operation;
use Closure;
use Generator;
use loophp\iterators\MultipleIterableAggregate;
use MultipleIterator;
/**
* @immutable
*
* @template TKey
* @template T
*/
final class Zip extends AbstractOperation
{
/**
* @template UKey
* @template U
*
* @return Closure(iterable<UKey, U>...): Closure(iterable<TKey, T>): Generator<list<TKey|UKey|null>, list<T|U|null>>
*/
public function __invoke(): Closure
{
return
/**
* @param iterable<UKey, U> ...$iterables
*
* @return Closure(iterable<TKey, T>): Generator<list<TKey|UKey|null>, list<T|U|null>>
*/
static fn (iterable ...$iterables): Closure =>
/**
* @param iterable<TKey, T> $iterable
*
* @return Generator<list<TKey|UKey|null>, list<T|U|null>>
*/
static fn (iterable $iterable): Generator => yield from new MultipleIterableAggregate([$iterable, ...array_values($iterables)], MultipleIterator::MIT_NEED_ANY);
}
}