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

Complexity

Conditions	1
Paths	1

Size

Total Lines	15
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function __invoke(): Closure
    {
        return
            /**
             * @param callable(T, TKey, iterable<TKey, T>): iterable<mixed, mixed> $callback
             */
            static function (callable $callback): Closure {
                /** @var Closure(iterable<TKey, T>): Generator<IKey, IValue> $flatMap */
                $flatMap = (new Pipe())()(
                    (new Map())()($callback),
                    (new Flatten())()(1),
                );

                // Point free style
                return $flatMap;
            };