eZ\Publish\Core\Search\Elasticsearch\Content\Location\CriterionVisitor\Location\DepthIn::canVisit PHP Метод

    public function canVisit(Criterion $criterion)
    {
        return $criterion instanceof Criterion\Location\Depth && (($criterion->operator ?: Operator::IN) === Operator::IN || $criterion->operator === Operator::EQ);
    }