loophp\combinator\Combinator\J

Complexity

Total Complexity

3

Size/Duplication

Total Lines	53
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
A	__invoke()	0	3	1
A	closure()	0	4	1

<?php

declare(strict_types=1);

namespace loophp\combinator\Combinator;

use loophp\combinator\Combinator;

/**
 * Class J.
 */
final class J extends Combinator
{
    /**
     * @var callable
     */
    private $f;

    /**
     * @var callable
     */
    private $x;

    /**
     * @var mixed
     */
    private $y;

    /**
     * @var mixed
     */
    private $z;

    /**
     * J constructor.
     *
     * @param callable $f
     * @param mixed $x
     * @param mixed $y
     * @param mixed $z
     */
    public function __construct(callable $f, $x, $y, $z)
    {
        $this->f = $f;
        $this->x = $x;
        $this->y = $y;
        $this->z = $z;
    }

    /**
     * @return mixed
     */
    public function __invoke()
    {
        return (($this->f)($this->x))((($this->f)($this->z))($this->y));
    }

    /**
     * @return callable
     */
    public static function closure(): callable
    {
        return static function (callable $f, $x, $y, $z) {
            return (new self($f, $x, $y, $z))();
        };
    }
}