drupol\phpermutations\Generators\Product

Complexity

Total Complexity

6

Size/Duplication

Total Lines	30
Duplicated Lines	0 %

Test Coverage

Coverage

0%

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	get()	0	12	5
A	generator()	0	3	1

<?php

declare(strict_types=1);

namespace drupol\phpermutations\Generators;

use drupol\phpermutations\GeneratorInterface;
use drupol\phpermutations\Iterators\Product as ProductIterator;
use Generator;

use function count;

class Product extends ProductIterator implements GeneratorInterface
{
    /**
     * {@inheritdoc}
     */
    public function generator(): Generator
    {
        return $this->get($this->getDataset());
    }

    /**
     * Get the generator.
     *
     * @param array<int, mixed> $data
     *                    The dataset
     *
     * @return Generator<array>
     */
    protected function get(array $data): Generator
    {
        if (!empty($data)) {
            if ($u = array_pop($data)) {
                foreach ($this->get($data) as $p) {
                    foreach ($u as $v) {
                        yield $p + [count($p) => $v];
                    }
                }
            }
        } else {
            yield [];
        }
    }
}