GenericNumberConverter.php

<?php


/**
 * This file is part of the ramsey/uuid library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */
declare (strict_types=1);
namespace Ramsey\Uuid\Converter\Number;

use Ramsey\Uuid\Converter\NumberConverterInterface;
use Ramsey\Uuid\Math\CalculatorInterface;
use Ramsey\Uuid\Type\Integer as IntegerObject;

/**
 * GenericNumberConverter uses the provided calculator to convert decimal
 * numbers to and from hexadecimal values
 *
 * @psalm-immutable
 */
class GenericNumberConverter implements NumberConverterInterface {
    public function __construct(CalculatorInterface $calculator) {
    }
    
    /**
     * @inheritDoc
     * @psalm-pure
     * @psalm-return numeric-string
     * @psalm-suppress MoreSpecificReturnType we know that the retrieved `string` is never empty
     * @psalm-suppress LessSpecificReturnStatement we know that the retrieved `string` is never empty
     */
    public function fromHex(string $hex) : string {
        return $this->calculator
            ->fromBase($hex, 16)
            ->toString();
    }
    
    /**
     * @inheritDoc
     * @psalm-pure
     * @psalm-return non-empty-string
     * @psalm-suppress MoreSpecificReturnType we know that the retrieved `string` is never empty
     * @psalm-suppress LessSpecificReturnStatement we know that the retrieved `string` is never empty
     */
    public function toHex(string $number) : string {
        
        /** @phpstan-ignore-next-line PHPStan complains that this is not a non-empty-string. */
        return $this->calculator
            ->toBase(new IntegerObject($number), 16);
    }

}