Interfacing

There are various reasons why you may want to interoperate with another language in a Rust project. Often times, code is not written in a vacuum, but rather the code you write needs to interact with an existing system. Or you need to make use of a library writte nin another language. The reverse could also be true: maybe you did write something useful in Rust, and you want to make it usable for people in another language.

Mixing Rust and other languages is often dangerous territory. The Rust language (and by that, the Rust compiler) can keep guarantees about your code, such as ensuring that you do not keep references around for longer than they are alive (through the lifetime system). When you send values across to another language, you need to take good care that the invariants that the Rust compiler enforces are also upheld on the other side.

https://www.hobofan.com/rust-interop/

https://blog.pnkfx.org/blog/2022/05/12/linking-rust-crates/

https://github.com/mozilla/uniffi-rs

https://github.com/rust-diplomat/diplomat/

C and C++

https://github.com/mozilla/cbindgen

https://cxx.rs/

https://github.com/rust-lang/rust-bindgen

Java

https://github.com/jni-rs/jni-rs

Dart and Flutter

https://pub.dev/packages/flutter_rust_bridge

Erlang

https://github.com/rusterlium/rustler

Python

https://pyo3.rs/v0.25.1/

https://github.com/PyO3/maturin

JavaScript

https://github.com/rustwasm/wasm-bindgen

https://docs.rs/js-sys/latest/js_sys/

https://docs.rs/web-sys/latest/web_sys/

Reading