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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\Rfc4122;
/**
* Provides common functionality for handling the version, as defined by RFC 4122
*
* @psalm-immutable
*/
trait VersionTrait
{
/**
* Returns the version
*/
abstract public function getVersion(): ?int;
/**
* Returns true if these fields represent a nil UUID
*/
abstract public function isNil(): bool;
/**
* Returns true if the version matches one of those defined by RFC 4122
*
* @return bool True if the UUID version is valid, false otherwise
*/
private function isCorrectVersion(): bool
{
if ($this->isNil()) {
return true;
}
switch ($this->getVersion()) {
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
return true;
}
return false;
}
}