Wasm3 support / 64-bit support
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 119k
- Forks
- 16.1k
- PR merge metrics
- PR metrics pending
Description
After 3 years Wasm 3 now supports 64-bit address space and typed references, are there plans to improve the wasm64 target to make it as feature-complete as the wasm32 targets?
https://webassembly.org/news/2025-09-17-wasm-3.0/
https://github.com/wasm3/wasm3
It sounds like many other languages are already targeting the new standard, it would be great if the Rust ecosystem could benefit too.
FYI https://doc.rust-lang.org/nightly/rustc/platform-support/wasm64-unknown-unknown.html
is still pointing to the outdated https://github.com/webassembly/memory64 proposal which has been archived in January.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the wasm64-unknown-unknown platform-support page and compare its status with the wasm32 targets. Read the linked WebAssembly 3.0 announcement, Wasm3 project, and current references to the archived memory64 proposal; done would require a defined plan and implementation that brings wasm64 toward feature parity.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust, wasm
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100