2302e5fb7d
Extends the native C++ marshalling to sequences and optionals: a C++ field maps to std::vector<T> / std::optional<T>, and `toC` returns a holder that owns the C-array backing (move/NRVO-safe std::vectors) while string pointers borrow the C++ argument — valid for the call, which the library deep-copies. `fromC` reads seq/Option back out of the C-POD. Unblocks the timer's complex (seq-of-structs / seq-of-strings / two optionals) and schedule (three struct params) methods — they now generate and round-trip typed results. Verified end-to-end and ASAN-clean. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
C++ bindings — native (generated)
Generated native (zero-serialization) C++ bindings for the timer library —
the C++ counterpart of c_bindings / go_bindings. The CBOR C++ bindings live
in ../cpp_bindings.
| File | Description |
|---|---|
my_timer_native.hpp |
Generated wrapper: a C++ struct + toC/fromC per {.ffi.} type, and a My_timerNode class whose methods marshal typed args into / read typed struct returns out of the native ABI — no CBOR. |
my_timer.h |
Native C header (structs + entry points) the .hpp includes. |
main.cpp, Makefile |
A driver + build. |
my_timer::My_timerNode node(my_timer::TimerConfig{"my-app"});
std::cout << node.Version();
auto r = node.Echo(my_timer::EchoRequest{"hello", 5}); // -> EchoResponse
std::cout << r.echoed << " / " << r.timerName;
Regenerate with nimble genbindings_cpp_native (from the repo root).
Build & run
cd examples/timer/cpp_native_bindings
make run
Status
Requests are fully supported: scalar / string / bool / nested struct and now
sequences (std::vector) and optionals (std::optional) — create, version,
echo, complex, schedule all generate and round-trip typed values (ASAN-clean).
toC uses a holder that owns the C-array backing while string pointers borrow
the C++ argument (valid for the call's duration; the library deep-copies).
Still to come: native typed events (On<Event> handlers) and the
native-bare / _cbor filename reconciliation (matching the C headers). Today
this emits my_timer_native.hpp so it coexists with the CBOR my_timer.hpp.