loophp\collection\Operation\IsEmpty

Complexity

Total Complexity

1

Size/Duplication

Total Lines	8
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
A	__invoke()	0	3	1

<?php

declare(strict_types=1);

namespace loophp\collection\Operation;

use Closure;
use Generator;
use loophp\iterators\IterableIteratorAggregate;

/**
 * @immutable
 *
 * @template TKey
 * @template T
 */
final class IsEmpty extends AbstractOperation
{
    /**
     * @return Closure(iterable<TKey, T>): Generator<int, bool>
     */
    public function __invoke(): Closure
    {
        return static fn (iterable $iterable): Generator => yield !(new IterableIteratorAggregate($iterable))->getIterator()->valid();
    }
}