| 1 |
<?php |
| 2 |
|
| 3 |
/** |
| 4 |
* This file is part of the ramsey/uuid library |
| 5 |
* |
| 6 |
* For the full copyright and license information, please view the LICENSE |
| 7 |
* file that was distributed with this source code. |
| 8 |
* |
| 9 |
* @copyright Copyright (c) Ben Ramsey <[email protected]> |
| 10 |
* @license http://opensource.org/licenses/MIT MIT |
| 11 |
*/ |
| 12 |
|
| 13 |
declare(strict_types=1); |
| 14 |
|
| 15 |
namespace Ramsey\Uuid\Rfc4122; |
| 16 |
|
| 17 |
/** |
| 18 |
* Provides common functionality for nil UUIDs |
| 19 |
* |
| 20 |
* The nil UUID is special form of UUID that is specified to have all 128 bits |
| 21 |
* set to zero. |
| 22 |
* |
| 23 |
* @link https://tools.ietf.org/html/rfc4122#section-4.1.7 RFC 4122, § 4.1.7: Nil UUID |
| 24 |
* |
| 25 |
* @psalm-immutable |
| 26 |
*/ |
| 27 |
trait NilTrait |
| 28 |
{ |
| 29 |
/** |
| 30 |
* Returns the bytes that comprise the fields |
| 31 |
*/ |
| 32 |
abstract public function getBytes(): string; |
| 33 |
|
| 34 |
/** |
| 35 |
* Returns true if the byte string represents a nil UUID |
| 36 |
*/ |
| 37 |
public function isNil(): bool |
| 38 |
{ |
| 39 |
return $this->getBytes() === "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; |
| 40 |
} |
| 41 |
} |
| 42 |
|
