Method has_primary

libs/indexer/drules_struct.pb.cc:3357–3359

.CaptionDefProto primary = 1;

// .CaptionDefProto primary = 1;
bool CaptionRuleProto::has_primary() const {
  return this != internal_default_instance() && primary_ != NULL;
}
void CaptionRuleProto::clear_primary() {
  if (GetArenaNoVirtual() == NULL && primary_ != NULL) delete primary_;
  primary_ = NULL;