IblockRightsChecker::checkElementRight

protected function checkElementRight(int $elementId, string $right): bool
{
	$cachedRights = $this->elementsRights[$elementId] ?? null;
	if (isset($cachedRights))
	{
		return isset($cachedRights[$right]);
	}

	return CIBlockElementRights::UserHasRightTo($this->getIblockId(), $elementId, $right);
}