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 <ben@benramsey.com>
10 * @license http://opensource.org/licenses/MIT MIT
11 */
12
13declare(strict_types=1);
14
15namespace Ramsey\Uuid\Guid;
16
17use Ramsey\Uuid\Codec\CodecInterface;
18use Ramsey\Uuid\Converter\NumberConverterInterface;
19use Ramsey\Uuid\Converter\TimeConverterInterface;
20use Ramsey\Uuid\Uuid;
21
22/**
23 * Guid represents a UUID with "native" (little-endian) byte order
24 *
25 * From Wikipedia:
26 *
27 * > The first three fields are unsigned 32- and 16-bit integers and are subject
28 * > to swapping, while the last two fields consist of uninterpreted bytes, not
29 * > subject to swapping. This byte swapping applies even for versions 3, 4, and
30 * > 5, where the canonical fields do not correspond to the content of the UUID.
31 *
32 * The first three fields of a GUID are encoded in little-endian byte order,
33 * while the last three fields are in network (big-endian) byte order. This is
34 * according to the history of the Microsoft definition of a GUID.
35 *
36 * According to the .NET Guid.ToByteArray method documentation:
37 *
38 * > Note that the order of bytes in the returned byte array is different from
39 * > the string representation of a Guid value. The order of the beginning
40 * > four-byte group and the next two two-byte groups is reversed, whereas the
41 * > order of the last two-byte group and the closing six-byte group is the
42 * > same.
43 *
44 * @link https://en.wikipedia.org/wiki/Universally_unique_identifier#Variants UUID Variants on Wikipedia
45 * @link https://docs.microsoft.com/en-us/windows/win32/api/guiddef/ns-guiddef-guid Windows GUID structure
46 * @link https://docs.microsoft.com/en-us/dotnet/api/system.guid .NET Guid Struct
47 * @link https://docs.microsoft.com/en-us/dotnet/api/system.guid.tobytearray .NET Guid.ToByteArray Method
48 *
49 * @psalm-immutable
50 */
51final class Guid extends Uuid
52{
53    public function __construct(
54        Fields $fields,
55        NumberConverterInterface $numberConverter,
56        CodecInterface $codec,
57        TimeConverterInterface $timeConverter
58    ) {
59        parent::__construct($fields, $numberConverter, $codec, $timeConverter);
60    }
61}
62