Another question. I’m trying to run a compose wasm...

# webassembly

[Luca]

Another question. I’m trying to run a compose wasmJs app and I was getting the error process is not defined on both js and wasmJs targets so I added:

// webpack.config.d/plugins.ks
const webpack = require('webpack');

config.plugins.push(
    new webpack.ProvidePlugin({
        process: require.resolve('process/browser'),
    }),
);

That fixes the js target.

But now for wasmJs I get TypeError: process.release is undefined

Is this expected?

[Luca]

I also tried to fix that error by doing:

const webpack = require('webpack');

config.plugins.push(
    new webpack.ProvidePlugin({
        process: require.resolve('process/browser'),
        'process.release': {name: "browser"},
    }),
);

That seems to resolve that, but I get a pretty obscure error:

ERROR
specifier.charCodeAt is not a function
ERROR in ./kotlin/secretk-kamel-samples-wasm-js.uninstantiated.mjs
Cannot read properties of undefined (reading 'module')

[Robert Jaros]

It seems you are trying to use some kind of process polyfill for browser?

[Robert Jaros]

I think it breaks runtime detection for generated code.

[Luca]

I think? One of the js libraries I am trying call throws an error when process isn't defined

[Luca]

It's looking for the presence of an env variable with process

[Edoardo Luppi]

This is how that library should do it, in case you want to patch it.

const isNodeJs = 
  (typeof process !== 'undefined'
    && process.versions != null
    && process.versions.node != null) ||
  (typeof window !== 'undefined'
    && typeof window.process !== 'undefined'
    && window.process.versions != null
    && window.process.versions.node != null);

[Luca]

@Edoardo Luppi I’m pretty sure that code checking for node is generated by kotlin, not whatever library I’m using. So I don’t think I can patch that part

[Edoardo Luppi]

Ahh, yeah, noticed now that it's inside one of the three generated files for a WASM module.

It's strange then. I'd expect that has been tested quite a lot.

[Edoardo Luppi]

Did the original process is not defined come from the same place, or from where?

[Luca]

No the original came from the library, but then while adding the plugin fix seems to satisfy the library, it is then causing process.release check to fail in the kotlin generated code

[Edoardo Luppi]

@Luca ahh, well, you're injecting a fake process, so I'd say the problem in the K/JS side is expected. You need to understand why your first dependency wants a process object.

[Luca]

yeah, idk. I’m just reimplementing the js lib in kotlin now. Seems easier than dealing with build issues lol

[Edoardo Luppi]

That's what I do 90% of the times.

[Luca]

haha yup. thankfully, TS is almost the same as kotlin…. if kotlin were way uglier and a lot worse

[Luca]

My favorite part is when people just randomly leave out TS types and you have to dig through 20 source files to find it. TS is GREAT

[Edoardo Luppi]

Yeah I agree. Kotlin needs to grow the library offering, but it will take time.
I'll be happy once I'll see a isOdd and isEven libraries on Maven Central

[Luca]

lmao

[Luca]

I wish kotlin would make targets opt out of by default, vs opt in

[Luca]

Then amount of time I need to make prs to add targets to libs is annoying