bytecodealliance / bytecodealliance/ComponentizeJS

Semver aware WASI module resolution when dealing with imports

Aperta
#349 0 commenti 0 reazioni 0 assegnatari Vedi su GitHub
enhancement
Lingua principale
Rust
Stelle
391
Fork
53
Merge medio
3g 5h
PR unite (30g)
1

Descrizione

Right now when building components with ComponentizeJS, we deal with references WASI types via direct match only.

This is usually fine but forces certain versions (the ones supported by StarlingMonkey below) to be used. Ideally we should be able to do an exact match where possible and the fall back to a compatible semver track (usually allowing upgrades but not downgrades) similar to what wasmtime would do.

As WASI 2.x is unlikely to change going forward I think we can now do this pretty definitively here, with minimal changes required for StarlingMonkey as well.

Also note that while this issue is probably going to be unnecessary when the "new" ComponentizeJS lands, this issue is here for tracking purposes just to make sure this

A simple use case is being able to write `wasi:http` components against any version of 2.x and having that compile (and eventually `jco transpile`, but that's out of scope here!) properly. Essentially the following should never fail:

```js
import { Fields } from "wasi:http/types@0.2.6";
```

(Even if the underlying world is 2.10/2.12, but this should fail if the underlying world is 2.4 probably)

Maybe it should be possible to disable this feature (i.e. supporting very specific imports), but IMO this would be a big DX improvement that is worth doing (maybe we emit some warnings or something if we're worried about it).

Guida per i contributori

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Direzione di ricerca

Start at ComponentizeJS's WASI import-resolution path and trace the existing direct-match handling for imports such as wasi:http/types@0.2.6. Define the compatible semver behavior around exact matches, upgrades within the supported WASI 2.x track, and rejection of incompatible older versions. Done means the stated import resolves against newer compatible worlds while jco transpile remains out of scope.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Valutazione

Stack tecnologico
javascript, rust, wasm
Ambito
compilers, developer-experience
Tipo di issue
Funzionalità
Difficoltà
4/5
Tempo stimato
3-5 giorni
Stato di attività
Attiva
Chiarezza
Abbastanza chiara
Idoneità per principianti
56/100

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