One generated wasm to rule them all

[jordy25519]

Motivation

Create a single, isomorphic JS package using wasm-bindgen and tooling.

Proposed Solution

Generate the wasm import table in a consistent or configurable way so that the wasm binary may be used by any JS target runtime.

Maybe there is a way to provide a core wasm file with the main logic and generate only "glue" wasm files for each target which provide the right import shims.

Alternatives

It is possible to do this using wasm-pack or manual build scripts and other glue code the downside of this, in my understanding, is it requires multiple wasm binaries, one for each target, which unnecessarily bloats the final package size.

Additional Context

Idea came from the observation that the generated wasm for --target=node and --target=browser produce the same binary apart from imports table (converted to wat):

I don't know dark js arts so maybe there's any easier way to do this from js glue code only but I could not find / comprehend that during my research into this.