loophp\collection\Operation\MapN::__invoke()

Complexity

Conditions	2
Paths	1

Size

Total Lines	25
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function __invoke(): Closure
    {
        return
            /**
             * @param callable(mixed, mixed, iterable<TKey, T>): mixed ...$callbacks
             */
            static fn (callable ...$callbacks): Closure =>
                /**
                 * @param iterable<TKey, T> $iterable
                 *
                 * @return Generator<mixed, mixed>
                 */
                static function (iterable $iterable) use ($callbacks): Generator {
                    $callbackFactory =
                        /**
                         * @return Closure(mixed, callable(mixed, mixed, iterable<TKey, T>): mixed): mixed
                         */
                        static fn (mixed $key): Closure =>
                            /**
                             * @param callable(mixed, mixed, iterable<TKey, T>): mixed $callback
                             */
                            static fn (mixed $carry, callable $callback): mixed => $callback($carry, $key, $iterable);

                    foreach ($iterable as $key => $value) {
                        yield $key => array_reduce($callbacks, $callbackFactory($key), $value);
                    }