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gRPC callbackService support added (#8666)

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* grpc callbackService support added

Signed-off-by: shankeleven <shashanksati11@gmail.com>

* tests: regenerate C++ gRPC golden with --grpc-callback-api (CallbackService & async_ reactor APIs); update formatting and method placement

---------

Signed-off-by: shankeleven <shashanksati11@gmail.com>
Co-authored-by: Wouter van Oortmerssen <aardappel@gmail.com>
This commit is contained in:
Shashank
2025-08-29 04:19:27 +05:30
committed by GitHub
parent b87d04af8c
commit deb3d93454
21 changed files with 617 additions and 51 deletions
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61
grpc/tests/grpctest_callback_client_compile.cpp Normal file
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// Verifies that the generated gRPC callback client stub methods are present.
// This is a compile-time only test: it never performs an actual RPC.
// It supplements grpctest_callback_compile.cpp (server side) by checking
// client-side async_ / reactor entry points.
#include <type_traits>
#include "monster_test.grpc.fb.h"
#if defined(FLATBUFFERS_GENERATED_GRPC_CALLBACK_API) && \
defined(GRPC_CALLBACK_API_NONEXPERIMENTAL)
using Stub = MyGame::Example::MonsterStorage::Stub;
using namespace MyGame::Example; // NOLINT
// Unary async overloads
static_assert(std::is_member_function_pointer<
decltype(static_cast<void (Stub::*)(
::grpc::ClientContext *,
const flatbuffers::grpc::Message<Monster> &,
flatbuffers::grpc::Message<Stat> *,
std::function<void(::grpc::Status)>)>(
&Stub::async_Store))>::value,
"Function-form unary async_Store missing");
static_assert(std::is_member_function_pointer<
decltype(static_cast<void (Stub::*)(
::grpc::ClientContext *,
const flatbuffers::grpc::Message<Monster> &,
flatbuffers::grpc::Message<Stat> *,
::grpc::ClientUnaryReactor *)>(
&Stub::async_Store))>::value,
"Reactor-form unary async_Store missing");
// Streaming reactor entry points
static_assert(
std::is_member_function_pointer<
decltype(static_cast<void (Stub::*)(
::grpc::ClientContext *,
const flatbuffers::grpc::Message<Stat> &,
::grpc::ClientReadReactor<flatbuffers::grpc::Message<
Monster> > *)>(&Stub::async_Retrieve))>::value,
"Server streaming reactor async_Retrieve missing");
static_assert(
std::is_member_function_pointer<
decltype(static_cast<void (Stub::*)(
::grpc::ClientContext *,
flatbuffers::grpc::Message<Stat> *,
::grpc::ClientWriteReactor<flatbuffers::grpc::Message<
Monster> > *)>(&Stub::async_GetMaxHitPoint))>::value,
"Client streaming reactor async_GetMaxHitPoint missing");
static_assert(std::is_member_function_pointer<
decltype(static_cast<void (Stub::*)(
::grpc::ClientContext *,
::grpc::ClientBidiReactor<
flatbuffers::grpc::Message<Monster>,
flatbuffers::grpc::Message<Stat> > *)>(
&Stub::async_GetMinMaxHitPoints))>::value,
"Bidi streaming reactor async_GetMinMaxHitPoints missing");
#endif // FLATBUFFERS_GENERATED_GRPC_CALLBACK_API &&
// GRPC_CALLBACK_API_NONEXPERIMENTAL
int main() { return 0; }