Is there a limitation with using expect/actual for...

# multiplatform

[Mark]

Is there a limitation with using expect/actual for default function implementations in sealed interfaces? I get:

// commonMain
expect sealed interface Foo {
    fun toUri(): Uri
}

// androidMain
actual sealed interface Foo {
    actual fun toUri(): Uri { // error: Actual function 'toUri' has no corresponding expected declaration
        TODO()
    }
}

[Csaba Szugyiczki]

I think you just do not need the actual keyword before the toUri function, since your Foo sealed interface is what is marked with expect

[Mark]

Then it complains that: Declaration must be marked with 'actual'

[Mark]

Seems to work fine if I just use a sealed class instead

[Mark]

The discussion here is quite relevant: https://youtrack.jetbrains.com/issue/KT-22841