Show HN: Hsrs – Type-Safe Haskell Bindings Generator for Rust

Source: Hacker News

Introduction

Hey everyone! I’ve been working on hsrs, a type‑safe Haskell bindings generator for Rust.

I couldn’t find any existing generator that creates type‑safe, rich bindings for Haskell from Rust. Both languages have powerful type systems, so I was surprised such a tool didn’t already exist. That’s why I decided to write my own. hsrs feels very similar to pyo3 and napi‑rs, and if you’ve used those, hsrs will feel right at home.

What Makes hsrs Different

• Generates type‑safe bindings for rich types such as Result, Maybe, etc.
• Produces Haskell bindings directly (unlike hs‑bindgen).

Resources

• Minimal example and more details are available in the Haskell Discourse announcement: