Function ParseDictionary

cpp/src/arrow/integration/json_internal.cc:1218–1228

}

Status ParseDictionary(const RjObject& obj, int64_t* id, bool* is_ordered,
                       std::shared_ptr<DataType>* index_type) {
  ARROW_ASSIGN_OR_RAISE(*id, GetMemberInt<int64_t>(obj, "id"));
  ARROW_ASSIGN_OR_RAISE(*is_ordered, GetMemberBool(obj, "isOrdered"));

  ARROW_ASSIGN_OR_RAISE(const auto json_index_type, GetMemberObject(obj, "indexType"));

  ARROW_ASSIGN_OR_RAISE(const auto type_name, GetMemberString(json_index_type, "name"));
  if (type_name != "int") {
    return Status::Invalid("Dictionary indices can only be integers");
  }
  return GetInteger(json_index_type).Value(index_type);
}