Kotlin synthetic caching not working in library artifact

I’ve created a self-contained project using groupie where I checked that seems the caching of the kotlin synthetic views seems not being used whatsover . if you look at the code

class GroupieDummyModel(val content: String = "Hello World") : Item() {
    override fun bind(viewHolder: ViewHolder, position: Int) {
        viewHolder.textView.text = content
    }
    override fun getLayout(): Int = R.layout.item_content
}

It will produce the following bytecode

   public void bind(@NotNull ViewHolder viewHolder, int position) {
      Intrinsics.checkParameterIsNotNull(viewHolder, "viewHolder");
      TextView var10000 = (TextView)((LayoutContainer)viewHolder).getContainerView().findViewById(id.textView);
      Intrinsics.checkExpressionValueIsNotNull(var10000, "viewHolder.textView");
      var10000.setText((CharSequence)this.content);
   }

which it stills use findViewById and not findViewByCache since Item doesn’t implements LayoutContainer doesn’t really matter that ViewHolder implements its Ithink, the Kotlin Compiler doesn´t know about that because it really expects the Item implementing it so it doesn´t generate the caching bytecode, seems like doing this is the same as not using LayoutContainer whatsover since it stills make the lookup in the hole itemView tree view.

Or maybe I’m really missing something here

Project: https://gitlab.com/leobrujah/kotlin-synthetic-test/blob/master/app/src/main/java/com/test/kotlinsyntheticssample/MainActivity.kt

[lisawray]

I opened an issue with the Kotlin team: https://youtrack.jetbrains.com/issue/KT-28617

[lisawray]

OK, bizarre. It’s happening only with the published library…

If you go in https://github.com/lisawray/groupie/blob/master/example/build.gradle and change the dependency to the library module rather than the published library

    implementation project(':library-kotlin-android-extensions')
//    implementation 'com.xwray:groupie-kotlin-android-extensions:2.2.1'

Then you see any Item (say CardItem) using findCachedViewById. If you do the reverse, it uses findViewById.