Hello guys :slightly_smiling_face: Was looking to ...

# announcements

[Jérémy CROS]

Hello guys 🙂
Was looking to simplify a bit of code I have
Looks like this :

sealed class Sealed(open val x: Int) {
    data class A(override val x: Int) : Sealed(x)
    data class B(override val x: Int) : Sealed(x)
}

private fun copyTest(test: Sealed, y: Int): Sealed {
    // "standard" way, it works
    return when (test) {
        is Sealed.A -> test.copy(x = y)
        is Sealed.B -> test.copy(x = y)
    }
    // Sadly, this does not
    return test.copy(x = y)
}

Is the when approach the only one? Or am I missing something?
Thanks!

[LeoColman]

I dont think it's possible, as the parent Sealed class doesn't declare the copy method, it's specific to data classes and thus you need to define it there.

[LeoColman]

An option is to create a copy method yourself on your base Sealed class