Hsrs – Type-Safe Haskell Bindings Generator for Rust
Hey everyone! I've been working on hsrs, a type-safe Haskell Bindings Generator for Rust. I couldn't really find any bindings generator that would create type-safe, rich bindings for Haskell from Rust. Naturally, both languages have rich type systems, so I was amazed that no awesome bindings generator already existed, hence 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's unique about hsrs as opposed to hs-bindgen is that it has type-safe bindings for rich types, like Result, Maybe, etc. while also…
In plain words
Hsrs is a tool that generates type-safe Haskell bindings from Rust code. It preserves rich types like Result and Maybe when creating bindings, similar to how pyo3 and napi-rs work for Python and JavaScript respectively. The tool is designed for developers who need to call Rust code from Haskell while maintaining type safety across language boundaries.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey everyone! I've been working on hsrs, a type-safe Haskell Bindings Generator for Rust. I couldn't really find any bindings generator that would create type-safe, rich bindings for Haskell from Rust. Naturally, both languages have rich type systems, so I was amazed that no awesome bindings generator already existed, hence 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's unique about hsrs as opposed to hs-bindgen is that it has type-safe bindings for rich types, like Result, Maybe, etc. while also generating Haskell bindings. The repo contains a minimal example, and more details are available in the haskell discourse: https://discourse.haskell.org/t/ann-hsrs-ergonomic-haskell-b...
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