Version\Extension\Extension::empty()

Complexity

Conditions	2
Paths	2

Size

Total Lines

10

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2.032

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
	Extension::validate()	0	1	?
A	Extension::from()	0	4	1

<?php

declare(strict_types=1);

namespace Version\Extension;

use Version\Exception\InvalidVersion;

abstract class Extension
{
    protected const IDENTIFIERS_SEPARATOR = '.';

    private $identifiers;

    protected function __construct(string ...$identifiers)
    {
        foreach ($identifiers as $identifier) {
            $this->validate($identifier);
        }

        $this->identifiers = $identifiers;
    }

    /**
     * @throws InvalidVersion
     */
    abstract protected function validate(string $identifier): void;

    public static function from(string $identifier, string ...$identifiers)
    {
        return new static($identifier, ...$identifiers);
    }

    public static function fromString(string $extension)
    {
        return new static(...explode(self::IDENTIFIERS_SEPARATOR, $extension));
    }

    public function getIdentifiers(): array
    {
        return $this->identifiers;
    }

    public function toString(): string
    {
        return implode(self::IDENTIFIERS_SEPARATOR, $this->identifiers);
    }

    public function __toString(): string
    {
        return $this->toString();
    }
}