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<?php
declare(strict_types=1);
namespace loophp\combinator\Combinator;
use loophp\combinator\Combinator;
/**
* Class F.
*/
final class F extends Combinator
{
* @var callable
private $f;
* @var mixed
private $x;
private $y;
* F constructor.
*
* @param mixed $x
* @param mixed $y
* @param callable $f
public function __construct($x, $y, callable $f)
$this->f = $f;
$this->x = $x;
$this->y = $y;
}
* @return mixed
public function __invoke()
return ($this->f)($this->y)($this->x);
* @return callable
public static function closure(): callable
return static function ($x, $y, callable $f) {
return (new self($x, $y, $f))();
};
loophp /
combinator
