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Diffstat (limited to 'vendor/ramsey/uuid/src/BinaryUtils.php')
-rw-r--r-- | vendor/ramsey/uuid/src/BinaryUtils.php | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/ramsey/uuid/src/BinaryUtils.php b/vendor/ramsey/uuid/src/BinaryUtils.php new file mode 100644 index 0000000..fb8ba9a --- /dev/null +++ b/vendor/ramsey/uuid/src/BinaryUtils.php @@ -0,0 +1,63 @@ +<?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; + +/** + * Provides binary math utilities + */ +class BinaryUtils +{ + /** + * Applies the RFC 4122 variant field to the 16-bit clock sequence + * + * @link http://tools.ietf.org/html/rfc4122#section-4.1.1 RFC 4122, § 4.1.1: Variant + * + * @param int $clockSeq The 16-bit clock sequence value before the RFC 4122 + * variant is applied + * + * @return int The 16-bit clock sequence multiplexed with the UUID variant + * + * @psalm-pure + */ + public static function applyVariant(int $clockSeq): int + { + $clockSeq = $clockSeq & 0x3fff; + $clockSeq |= 0x8000; + + return $clockSeq; + } + + /** + * Applies the RFC 4122 version number to the 16-bit `time_hi_and_version` field + * + * @link http://tools.ietf.org/html/rfc4122#section-4.1.3 RFC 4122, § 4.1.3: Version + * + * @param int $timeHi The value of the 16-bit `time_hi_and_version` field + * before the RFC 4122 version is applied + * @param int $version The RFC 4122 version to apply to the `time_hi` field + * + * @return int The 16-bit time_hi field of the timestamp multiplexed with + * the UUID version number + * + * @psalm-pure + */ + public static function applyVersion(int $timeHi, int $version): int + { + $timeHi = $timeHi & 0x0fff; + $timeHi |= $version << 12; + + return $timeHi; + } +} |