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

Complexity

Conditions	1
Paths	1

Size

Total Lines	27
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	1

<?php
    public function __invoke(): Closure
    {
        $comparatorCallback =
            /**
             * @param T $left
             *
             * @return Closure(T): bool
             */
            static fn (mixed $left): Closure =>
                /**
                 * @param T $right
                 */
                static fn (mixed $right): bool => $left === $right;

        return
            /**
             * @param iterable<UKey, U> $items
             *
             * @return Closure(iterable<TKey, T>): iterable<int|TKey|UKey, T|U>
             */
            static fn (iterable $items): Closure =>
                /**
                 * @param iterable<TKey, T> $iterable
                 *
                 * @return Generator<int|TKey|UKey, T|U>
                 */
                static fn (iterable $iterable): Generator => yield from (new Distinct())()($comparatorCallback)(static fn (mixed $value, mixed $key): mixed => $key)(new ConcatIterableAggregate([$iterable, $items]));
    }