A modern programming language that makes developers happier.

kotlinlang

If I understand correctly, <https://youtrack.jetbrains.com/issue/KT-20427> would let you do what you want

Depending on your structure here might be a clever workaround you can find. eg you might be able to mark your default implementation `open` and override it in JVM.

But it couldn't be used as "use this impl or the specific from jvm"

I wanted to create methods that support every platform without having to declare all platforms IE no native sourceSet

Yeah I don't know exactly what will work for your use-case off-hand, I'm just saying sometimes it's possible to come up with sometihng

Another tactic is to use interfaces instead of expect/actual. That can help make that sort of thing more flexible, at the cost of needing to do the dependency injection more manually