Announcing rs-jsonnet: A Pure Rust Implementation of Jsonnet with 90% Compatibility

[Jun Kawasaki]

Hello Jsonnet Community,

I'm excited to share rs-jsonnet, a pure-rust implementation of the Jsonnet data templating language. Our project aims to provide a high-performance, memory-efficient, and highly compatible alternative for the Rust ecosystem.

You can find the repository here: https://github.com/gftdcojp/rs-jsonnet

Current Status:
High Compatibility: We are currently passing 38/42 tests from the official test suite (90% coverage).

Core Features Implemented: The implementation supports all core language features, including functions, comprehensions, imports, and error handling.

Standard Library: We have implemented approximately 80 standard library functions.
Performance: The implementation is designed with performance in mind, leveraging Rust's zero-cost abstractions and focusing on lazy evaluation.

We Need Your Help!
We are looking for contributors to help us reach 100% compatibility with Google's implementation. The main areas where we could use help are:
Implementing the remaining advanced array functions (filter, map, foldl, foldr).
Adding the rest of the standard library functions (hashing, encoding, advanced math).
Fixing the last 4 failing tests to achieve full compatibility.

Please check out the project, try it out, and consider contributing. Any feedback, issues, or pull requests are highly welcome!

Thanks,

Jun

[kerr]

Thanks for sharing~

I think you can check jrsonnet and sjsonnet too, I really want to but not good at rust.

何品

Jun Kawasaki <j...@gftd.group> 于2025年9月24日周三 23:43写道：

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