23 LOG(FATAL) <<
"ExMessageHandler doesn't support upgrade";
27 LOG(FATAL) <<
"getExHandler can't be called on ExMessageHandler";
virtual void onUpgrade(proxygen::UpgradeProtocol) noexceptoverride
virtual ExMessageHandler * getExHandler() noexceptoverride
requires E e noexcept(noexcept(s.error(std::move(e))))