Yury Delendik (Sep 22 2020 at 16:26): Yury Delendik (Sep 22 2020 at 16:26):The wast crate emits bytes. Was there a plan to create a separate crate to do just emitting part?
Alex Crichton (Sep 22 2020 at 16:35):@Yury Delendik I've always wanted to have one but I never had concrete plans beyond a desire
fitzgen (he/him) (Sep 22 2020 at 17:56):I was thinking I should pull these bits out of wasm-smith but haven't got around to it
fitzgen (he/him) (Sep 22 2020 at 17:56):wasm-smith supports "relocations" of going back and fixing up length prefixes and stuff, which I imagine is valuable for such a crate
fitzgen (he/him) (Sep 22 2020 at 17:57):its all in this module: https://github.com/fitzgen/wasm-smith/blob/main/src/encode.rs
fitzgen (he/him) (Sep 22 2020 at 17:59):I imagine that making this a crate would replace all the closure-taking functions with builder structs for ergonomics, and there would be a bunch of different builder/writer structs for each part of wasm (the same way wasmparser has a bunch of different kinds of readers)
Yury Delendik (Sep 22 2020 at 17:59):basic use case I'm entertaining atm is merging serveral modules (multi-memory and stuff)
Yury Delendik (Sep 22 2020 at 18:01):so wasmparsers will be reading + some logic to change indices in operators
fitzgen (he/him) (Sep 22 2020 at 19:27):I was thinking more something at the abstraction level of wasmparser; that is, raw binary encoding/decoding
for higher level transforms and merging things together, walrus might be a better bet
Last updated: Nov 22 2024 at 16:03 UTC