2026-05-19 12:43:34 +02:00

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# Rust Bindings for nim-timer
## Purpose
This folder contains **auto-generated Rust bindings** (the `my_timer` crate) for the `my_timer` Nim library. It is generated from `../timer.nim` and provides:
- `src/lib.rs`: Main library exposing high-level Rust types and the `MyTimerCtx` API
- `src/api.rs`: High-level async/sync wrapper around the FFI
- `src/ffi.rs`: Raw `extern "C"` declarations for the Nim library
- `src/types.rs`: Serializable Rust types matching the Nim FFI types
- `build.rs`: Build script that compiles the Nim library to `libmy_timer.dylib` (or `.so`/`.dll`)
- `Cargo.toml`: Package manifest with serde and serde_json dependencies
## How It's Generated
Generate or regenerate these bindings by running from the parent directory:
```sh
cd examples/timer
nimble genbindings_rust
```
This command:
1. Invokes the Nim compiler with `-d:targetLang:rust` flag
2. Triggers `genBindings("examples/timer/rust_bindings", "../timer.nim")` in `timer.nim`
3. Creates/updates the generated binding files
## Using as a Dependency
The `rust_client` example consumes this crate:
```toml
[dependencies]
my_timer = { path = "../rust_bindings" }
```
## Do Not Edit
The generated files in this folder are overwritten each time `nimble genbindings_rust` runs. Any manual changes will be lost.