loophp\collection\Operation\Product::on()

Complexity

Conditions	2
Paths	1

Size

Total Lines	16
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function on(iterable $collection): Closure
    {
        $iterables = $this->iterables;

        $cartesian = function (iterable $input) {
            return $this->cartesian($input);
        };

        return static function () use ($iterables, $collection, $cartesian): Generator {
            $its = [$collection];

            foreach ($iterables as $iterable) {
                $its[] = new IterableIterator($iterable);
            }

            yield from $cartesian($its);
        };