wit-bindgen

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Right now all language bindings (and the CLI) support import and export modes. Figuring out what this means within each language generator is confusing and easily forgotten. I don't like...

alexcrichton

Ownership of resource handles

4

I'm would like to use wit to generate host/wasmtime and guest/rust bindings for [lunatic](https://github.com/lunatic-solutions/lunatic). However, I'm still not sure how to correctly model a specific use case. In lunatic some...

bkolobara

rust-wasm export cannot find imported handle types

3

This repository: https://github.com/sunfishcode/import-export-demo contains a wit-bindgen project which imports provider.wit: ```wit resource thing { frob: function() } ``` and exports runner.wit: ```wit use { thing } from provider doit: function(it:...

sunfishcode

Accessing caller function / memory from Wasmtime implementation

16

There doesn't appear to be a way in the `wit-bindgen-wasmtime` implementation for accessing a caller's export function or memory from a host implementation. Is this a valid scenario for this...

radu-matei

[Question] `use` semantics with re-exports

1

From my understanding every type in a `.wit` file is treated as an export. Using `use` allows importing types from other files. Like with header files these types can be...

willemneal

Handling of typenames that match Rust typenames

3

Here is the minimal wit file: ```wit record result { data: list, } func: function() -> expected ``` Which yields the following error: ``` error[E0107]: this struct takes 0 generic...

tailhook

Unless I'm missing something, it currently does not seem possible for one `wit_bindgen_wasmtime::export/import!()` macro to use definitions produced by another `export!/import!` macro. My use case is allowing crates to use...

theduke

[Bug] TS generation of `option<option<option<T>>>`

1

A very unlikely type, but currently. ```wit record person { name: string, age: option, } ``` becomes ```ts export interface Person { name: string, age?: number | null | null,...

willemneal

[Idea] Generate TS code then compile to JS

8

Currently when generating js code, there is an additional `.d.ts` file generated. Furthermore, the JS that is generated requires ESM support. Instead could there just be TS generated that then...

willemneal

Should unions in JS be untagged?

2

Types like `string | URL` are pretty common in JS, so would it be a good idea for unions to map to that rather than being the same as variants?...

Liamolucko