Should we register modules directly?

[yoshuawuyts]

I was thinking: perhaps it would make sense to register modules directly?

E.g. turn this:

var rust = require('rustify')

var wasm = rust`
  #[no_mangle]
  pub fn add_one(x: i32) -> i32 {
    x + 1
  }
`

WebAssembly.instantiate(wasm, {})
  .then(function (res) {
    var addOne = res.instance.exports.add_one
    console.log(addOne(41))
    console.log(addOne(68))
  }).catch(function (e) {
    console.error('Creating WASM module failed', e)
  })

Into this:

var rust = require('rustify')

var wasm = rust`
  #[no_mangle]
  pub fn add_one(x: i32) -> i32 {
    x + 1
  }
`

wasm.then((mod) => {
  console.log(mod.add_one(41))
  console.log(mod.add_one(68))
}).catch((e) => console.error('WASM error', e))

The benefit is that there's way less code to remember (ugh, res.instance.exports). The downside is that we're no long just exposing a Uint8Array, so doing things like registering a function twice is not going to be possible.

Would this be worth it?