hs-bindgen

Handy macro to generate C-FFI bindings from Rust to Haskell.

This library intended to work best in a project configured by cabal-pack.

Example

use hs_bindgen::*;

#[hs_bindgen]
fn greetings(name: &str) {
    println!("Hello, {name}!");
}

... will be expanded to ...

fn greetings(name: &str) {
    println!("Hello, {name}!");
}

#[no_mangle] // Mangling randomize symbols
extern "C" fn c_greetings(_0: *const std::os::raw::c_char) {
    greetings(hs_bindgen_traits::ReprC::from(_0))
}

Acknowledgments

⚠️ This is still a working experiment, not yet production ready.

hs-bindgen was heavily inspired by other interoperability initiatives, as wasm-bindgen and PyO3.

This project was part of a work assignment as an IOG contractor.