Innmind\Immutable\Maybe\Nothing

Complexity

Total Complexity

5

Size/Duplication

Total Lines	25
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	1

5 Methods

Rating	Name	Duplication	Size	Complexity
A	map()	0	3	1
A	flatMap()	0	3	1
A	match()	0	3	1
A	filter()	0	3	1
A	otherwise()	0	3	1

<?php
declare(strict_types = 1);

namespace Innmind\Immutable\Maybe;

use Innmind\Immutable\Maybe;

/**
 * @psalm-immutable
 * @internal
 */
final class Nothing implements Implementation
{
    public function map(callable $map): self
    {
        return $this;
    }

    public function flatMap(callable $map): Maybe
    {
        return Maybe::nothing();
    }

    public function match(callable $just, callable $nothing)
    {
        return $nothing();
    }

    public function otherwise(callable $otherwise): Maybe
    {
        return $otherwise();
    }

    public function filter(callable $predicate): self
    {
        return $this;
    }
}