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

Complexity

Conditions	2
Paths	1

Size

Total Lines	26
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	12
CRAP Score	2

Importance

Changes

0

<?php
    public function __invoke(): Closure
    {
        return
            /**
             * @return Closure(int=): Closure(iterable<TKey, T>): Generator<TKey, T>
             */
            static fn (int $offset): Closure =>
                /**
                 * @return Closure(iterable<TKey, T>): Generator<TKey, T>
                 */
                static function (int $length = -1) use ($offset): Closure {
                    /** @var Closure(iterable<TKey, T>): Generator<TKey, T> $skip */
                    $skip = (new Limit())()(-1)($offset);

                    if (-1 === $length) {
                        return $skip;
                    }

                    /** @var Closure(iterable<TKey, T>): Generator<TKey, T> $pipe */
                    $pipe = (new Pipe())()(
                        $skip,
                        (new Limit())()($length)(0)
                    );

                    // Point free style.
                    return $pipe;
                };