Nette\Reflection\Parameter::getClassName PHP Method

    public function getClassName()
    {
        try {
            return ($ref = parent::getClass()) ? $ref->getName() : NULL;
        } catch (\ReflectionException $e) {
            if (preg_match('#Class (.+) does not exist#', $e->getMessage(), $m)) {
                return $m[1];
            }
            throw $e;
        }
    }