I'm exporting a bunch of classes from a library using @JsExport and friends. For some reason, a priv...

# javascript

[Donny]

I'm exporting a bunch of classes from a library using @JsExport and friends. For some reason, a private inner class in a completely separate module, that I haven't annotated to be exported in any form, is conflicting "Javascript name generated for this declaration clashes with another declaration". Any thoughts?

[Big Chungus]

Recent versions of kotlin removed js namespacing so if you have a class with the same name in two different kotlin dependencies it might cause these clashes when both are transpiled to js

[Big Chungus]

Don't quote me on this though 😀

[Donny]

Neither the outer class nor the inner class is a duplicate name. It's very strange.

[Donny]

Also, why would they remove the namespacing?

[Big Chungus]

¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯ people complained that it looked weird from js side

[Donny]

I guess I can see that. I'm figuring out that trying to make a Kotlin/JS library accessible from JS is a tricky proposition and a little wild west.

[Donny]

On a different note it would be nice if the compiler automatically renamed overloaded functions, perhaps based on the parameters.

[CLOVIS]

^ the compiler does, that's the _a5d3z postfix you can see on function names when you don't specify @JsName

[CLOVIS]

it's not really readable of course

[Donny]

Does it? Because the compiler fails for me saying that javascript name clashes for overloaded functions.

[Donny]

For exported classes.

[Donny]

Also, getting errors around the fact that extensions inside a class clash when the method name is the same even if the classes that are being extended are different. Here is an example:

@ExperimentalJsExport
@JsExport
class TheClass() {

  fun TextLine.before(charIndex: Int): TextLine {
    ...
  }

  fun Pair<String, TextAttributes>.before(index: Int): Pair<String, TextAttributes> {
    ...  
  }
}

This causes an error ... but why?

[Donny]

JavaScript name (before) generated for this declaration clashes with another declaration: fun TextLine.before(charIndex: Int): TextLine

[CLOVIS]

Interesting, maybe name mangling is disabled when using @JsExport ? I'm pretty sure this compiles fine if you don't export it

[CLOVIS]

That would make sense, mangling is very ugly when seen from JS