Stream: general

Topic: async guest with wasmtime 33

view this post on Zulip morenol (Jun 17 2025 at 15:03):

I tried to load a component built with wit-bindgen in wasmtime v33 (with async enabled) but got the error: "unsupported intrinsic" when calling Component::from_binary. Is that feature not ready yet to try or should I use another API?

view this post on Zulip Alex Crichton (Jun 17 2025 at 15:07):

Yes async is a work-in-progress and not ready to be used yet

view this post on Zulip Joel Dice (Jun 17 2025 at 16:06):

Feel free to come kick the tires at https://github.com/bytecodealliance/wasip3-prototyping, which is where we're working on it. There are snapshot builds in https://github.com/bytecodealliance/wasip3-prototyping/releases/tag/dev

GitHub - bytecodealliance/wasip3-prototyping: Fork of wasmtime for protoyping WASIp3 work and coordination, not intended for any production use case, purely for development
Fork of wasmtime for protoyping WASIp3 work and coordination, not intended for any production use case, purely for development - bytecodealliance/wasip3-prototyping
Release dev: Merge pull request #216 from bytecodealliance/dicej/miri-async-tests · bytecodealliance/wasip3-prototyping
Fork of wasmtime for protoyping WASIp3 work and coordination, not intended for any production use case, purely for development - Release dev: Merge pull request #216 from bytecodealliance/dicej/miri-async-tests · bytecodealliance/wasip3-prototyping

view this post on Zulip Joel Dice (Jun 17 2025 at 16:07):

It's not ready for production use yet, but it is ready for experimentation and feedback.

Last updated: Dec 06 2025 at 05:03 UTC