Method AddDictionaryType

cpp/src/arrow/ipc/dictionary.cc:238–247

}

Status DictionaryMemo::AddDictionaryType(int64_t id,
                                         const std::shared_ptr<DataType>& type) {
  // AddDictionaryType expects the dict value type
  DCHECK_NE(type->id(), Type::DICTIONARY);
  const auto pair = impl_->id_to_type_.emplace(id, type);
  if (!pair.second && !pair.first->second->Equals(*type)) {
    return Status::KeyError("Conflicting dictionary types for id ", id);
  }
  return Status::OK();
}

bool DictionaryMemo::HasDictionary(int64_t id) const {
  const auto it = impl_->id_to_dictionary_.find(id);