loophp / collection

src/Operation/Flip.php

<?php

declare(strict_types=1);

namespace loophp\collection\Operation;

use Closure;
use Generator;

/**
 * @immutable
 *
 * @template TKey
 * @template T
 */
final class Flip extends AbstractOperation
{
    /**
     * @return Closure(iterable<TKey, T>): Generator<T, TKey>
     */
    public function __invoke(): Closure
    {
        return (new Associate())()(
            /**
             * @param TKey $key

The type loophp\collection\Operation\TKey was not found. Maybe you did not declare it correctly or list all dependencies?

             * @param T $value
             *
             * @return T
             */
            static fn (mixed $key, mixed $value): mixed => $value
        )(
            /**
             * @param T $value
             * @param TKey $key
             *
             * @return TKey
             */
            static fn (mixed $value, mixed $key): mixed => $key
        );
    }
}