Innmind\Compose\Definition\Service\Constructor\Map

Complexity

Total Complexity

4

Size/Duplication

Total Lines	42
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	fromString()	0	11	2
A	__construct()	0	4	1
A	__invoke()	0	11	1

<?php
declare(strict_types = 1);

namespace Innmind\Compose\Definition\Service\Constructor;

use Innmind\Compose\{
    Definition\Service\Constructor,
    Exception\ValueNotSupported
};
use Innmind\Immutable\{
    Str,
    Map as ImmutableMap,
    Pair
};

final class Map implements Constructor
{
    private $key;
    private $value;

    private function __construct(string $key, string $value)
    {
        $this->key = $key;
        $this->value = $value;
    }

    /**
     * {@inheritdoc}
     */
    public static function fromString(Str $value): Constructor
    {
        if (!$value->matches('~^map<\S+, ?\S+>$~')) {
            throw new ValueNotSupported((string) $value);
        }

        $components = $value->capture('~^map<(?<key>\S+), ?(?<value>\S+)>$~');

        return new self(
            (string) $components->get('key'),
            (string) $components->get('value')
        );
    }

    /**
     * {@inheritdoc}
     */
    public function __invoke(...$arguments): object
    {
        return ImmutableMap::of(
            $this->key,
            $this->value,
            array_map(static function(Pair $pair) {
                return $pair->key();
            }, $arguments),
            array_map(static function(Pair $pair) {
                return $pair->value();
            }, $arguments)
        );
    }
}