197   auto assign_result = pre_assigned_ids_.emplace(id, key);  in ReserveId()  local
198   if (!assign_result.second && assign_result.first->second != key) {  in ReserveId()
200     error << "ID is already assigned to " << assign_result.first->second;  in ReserveId()
249   auto assign_result = next_entry_id_.ReserveId(name, id.entry_id());  in ReserveId()  local
250   if (!assign_result.has_value()) {  in ReserveId()
252     error << "entry " << assign_result.error();  in ReserveId()
283     auto assign_result = type_id_finder_.ReserveId(key, id.type_id());  in ReserveId()  local
284     if (!assign_result.has_value()) {  in ReserveId()
286                                 << " because type " << assign_result.error());  in ReserveId()
303   auto assign_result = type->second.ReserveId(name, id);  in ReserveId()  local
304   if (!assign_result.has_value()) {  in ReserveId()
306                               << assign_result.error());  in ReserveId()
332   auto assign_result = type->second.NextId();  in NextId()  local
333   if (!assign_result.has_value()) {  in NextId()
335                               << assign_result.error());  in NextId()
338   return assign_result.value();  in NextId()