Another odd one I'm finding in testing - `Screen` is an expect/actual interface that, on `androidM...

# k2-adopters

[Zac Sweers]

Another odd one I'm finding in testing

• Screen is an expect/actual interface that, on androidMain, extends android's Parcelable interface
• AndroidScreen is a regular interface in an android library project that extends Screen
• OpenUrlScreen is an actual class in androidMain that implements both and leverages the @Parcelize plugin

@Parcelize
actual data class OpenUrlScreen actual constructor(actual val url: String) : Screen, AndroidScreen

At a glance, it seems that the parcelize plugin is generating bytecode that doesn't name the parameter, and because it doesn't match what Kotlin expects from the metadata (which indicates they're a named param), it falls over. However, the original declaration is in java, so why would it matter?

public void writeToParcel(@NonNull Parcel dest, @WriteFlags int flags);

Let me know if I should file a bug for this (and where, as I know Google maintains this plugin but I'm not sure if this is bug with the compiler or parcelize)

[Zac Sweers]

actually it seems to not matter if there's an intermediary AndroidScreen, happens with just this too

@Parcelize
actual data class OpenUrlScreen actual constructor(actual val url: String) : Screen

[dmitriy.novozhilov]

Please report to Kotlin tracker

[Zac Sweers]

https://youtrack.jetbrains.com/issue/KT-67523