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nim-ffi/examples/timer/cpp_bindings
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Ivan FB 7e7632a8e9
refactor(codegen): name RET status codes in C++/Rust callbacks 
Avoid magic ret-code integers in the generated callback helpers. The C
trampolines already reference NIMFFI_RET_STALE_WARN; mirror that in the other
two backends: define the canonical NIMFFI_RET_* set once in the C++ header
prelude (guarded so a mixed TU keeps a single definition) and emit module-level
NIMFFI_RET_* consts in the Rust crate, then use the named constants for the
stale-warn, ok, and missing-callback checks instead of 3/0/2.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-11 01:07:04 +02:00
..
CMakeLists.txt
feat(codegen): C binding generator (-d:targetLang=c) (#102)
2026-07-01 12:00:47 -03:00
main.cpp
Remove wildcard event listener; keep per-event dispatch (#70)
2026-06-02 22:22:35 +02:00
my_timer.hpp
refactor(codegen): name RET status codes in C++/Rust callbacks
2026-07-11 01:07:04 +02:00
README.md
Add basic cpp e2e tests (#27)
2026-05-19 12:43:34 +02:00

README.md

C++ Bindings for nim-timer

Purpose

This folder contains auto-generated C++ bindings for the my_timer Nim library. It is generated from ../timer.nim and provides:

  • my_timer.hpp: High-level C++ class (MyTimerCtx) wrapping the FFI interface
  • main.cpp: Example executable demonstrating how to use the bindings
  • CMakeLists.txt: Build configuration that compiles the Nim library and links the C++ example

How It's Generated

Generate or regenerate these bindings by running from the parent directory:

cd examples/timer
nimble genbindings_cpp

This command:

  1. Invokes the Nim compiler with -d:targetLang:cpp flag
  2. Triggers genBindings("examples/timer/cpp_bindings", "../timer.nim") in timer.nim
  3. Creates/updates the generated binding files

Building the Example

cd examples/timer/cpp_bindings
cmake -S . -B build
cmake --build build
./build/example

Do Not Edit

The generated files in this folder are overwritten each time nimble genbindings_cpp runs. Any manual changes will be lost.