AsyncPostQueryCallback Operation::appendCallback()

in squangle/mysql_client/Operation.cpp [382:399]

• 16 lines of code
• 7 McCabe index (conditional complexity)

AsyncPostQueryCallback Operation::appendCallback(
    AsyncPostQueryCallback&& callback1,
    AsyncPostQueryCallback&& callback2) {
  if (!callback1) {
    return std::move(callback2);
  }

  if (!callback2) {
    return std::move(callback1);
  }

  return [callback1 = std::move(callback1),
          callback2 = std::move(callback2)](auto&& result) {
    return callback1(std::move(result)).deferValue([callback2](auto&& result) {
      return callback2(std::move(result));
    });
  };
}