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<?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\Type;
use Ramsey\Uuid\Exception\InvalidArgumentException;
use function ctype_xdigit;
use function strpos;
use function strtolower;
use function substr;
/**
* A value object representing a hexadecimal number
*
* This class exists for type-safety purposes, to ensure that hexadecimal numbers
* returned from ramsey/uuid methods as strings are truly hexadecimal and not some
* other kind of string.
*
* @psalm-immutable
*/
final class Hexadecimal implements TypeInterface
{
/**
* @var string
*/
private $value;
/**
* @param string $value The hexadecimal value to store
*/
public function __construct(string $value)
{
$value = strtolower($value);
if (strpos($value, '0x') === 0) {
$value = substr($value, 2);
}
if (!ctype_xdigit($value)) {
throw new InvalidArgumentException(
'Value must be a hexadecimal number'
);
}
$this->value = $value;
}
public function toString(): string
{
return $this->value;
}
public function __toString(): string
{
return $this->toString();
}
public function jsonSerialize(): string
{
return $this->toString();
}
public function serialize(): string
{
return $this->toString();
}
/**
* Constructs the object from a serialized string representation
*
* @param string $serialized The serialized string representation of the object
*
* @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
*/
public function unserialize($serialized): void
{
$this->__construct($serialized);
}
}