Baethon\Phln\Monad\Identity

Complexity

Total Complexity

4

Size/Duplication

Total Lines	36
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	map()	0	4	1
A	of()	0	4	1
A	extract()	0	4	1

<?php

declare(strict_types=1);

namespace Baethon\Phln\Monad;

final class Identity
{
    /**
     * @var mixed
     */
    private $value;

    /**
     * @param mixed $value
     */
    private function __construct($value)
    {
        $this->value = $value;
    }

    public function map(callable $fn): Identity
    {
        return Identity::of($fn($this->value));
    }

    /**
     * @param mixed $value
     */
    public static function of($value): Identity
    {
        return new static($value);
    }

    /**
     * @return mixed
     */
    public function extract()
    {
        return $this->value;
    }
}