public function accept(NodeVisitorInterface $visitor) { if (false !== $visitor->enterObjectRefId($this)) { if (false !== $visitor->enterObjectRefObject($this)) { $this->object->accept($visitor); } $visitor->leaveObjectRefObject($this); if ($this->prefix) { if (false !== $visitor->enterObjectRefPrefix($this)) { $this->prefix->accept($visitor); } $visitor->leaveObjectRefPrefix($this); } } $visitor->leaveObjectRefId($this); }