Method RegisterType

cpp/src/arrow/extension_type.cc:106–116

  ExtensionTypeRegistryImpl() {}

  Status RegisterType(std::shared_ptr<ExtensionType> type) override {
    std::lock_guard<std::mutex> lock(lock_);
    std::string type_name = type->extension_name();
    auto it = name_to_type_.find(type_name);
    if (it != name_to_type_.end()) {
      return Status::KeyError("A type extension with name ", type_name,
                              " already defined");
    }
    name_to_type_[type_name] = std::move(type);
    return Status::OK();
  }

  Status UnregisterType(const std::string& type_name) override {
    std::lock_guard<std::mutex> lock(lock_);