Is there already any kind of C interoperability? W...

# webassembly

[Michael Paus]

Is there already any kind of C interoperability? What I mean is taking some piece of C code, compile it to WASM and then call this code from Kotlin on the wasmJs target.

[Svyatoslav Kuzmich [JB]]

Not really.

Technically, you can do it, but it is not pretty. Compose for Web already calls to C++ skia library compiled to Wasm, and calling to C wouldn’t be any harder. It involves manual linking and manual work with raw C++ memory.

Hopefully, Component Model will cover most of the use-cases of calling any language library. You would need to wrap it with a component interface (if it isn’t done already).

[Michael Paus]

How far away are we from having Component Model support for WASM in the browser?

[andylamax]

I don't think Component model has even hit phase 4 already, has it?

[andylamax]

Also, Component model is being implemented in Wasi, unsure how that will come to browser

[Svyatoslav Kuzmich [JB]]

We already have a transpiler from components to core wasm: https://github.com/bytecodealliance/jco, but its support for WasmGC is in-progress. I not sure, but would guesstimate it to be done “in a few months”.

Component model designers estimate native browsers implementation as:
> […] at least a year or two out (before browser implementations start) in the best case […]

[Svyatoslav Kuzmich [JB]]

I don’t think Component model has even hit phase 4 already, has it?

It is in Phase 1, but would likely be usabe before Phase 4, using transpilers and polyfills.

[andylamax]

the link to estimate you provided has a very interesting discussion... Must read for sure