Pavel Kunyavskiy
29 lines
543 B
Kotlin
Vendored
29 lines
543 B
Kotlin
Vendored
interface Base<in E : Any?> {
|
|
}
|
|
|
|
interface Derived<in E : Any?> : Base<E> {
|
|
}
|
|
|
|
interface Receiver<out E : Any?> {
|
|
}
|
|
|
|
fun box(): String {
|
|
return "OK"
|
|
}
|
|
|
|
fun <R : Any?> foo(r: Receiver<R>): R {
|
|
return produce<R>(block = local fun Derived<R>.<anonymous>() {
|
|
r.toChannel<R, Derived<R>>(destination = $this$produce) /*~> Unit */
|
|
}
|
|
)
|
|
}
|
|
|
|
fun <E : Any?> produce(block: @ExtensionFunctionType Function1<Derived<E>, Unit>): E {
|
|
return null as E
|
|
}
|
|
|
|
fun <E : Any?, C : Base<E>> Receiver<E>.toChannel(destination: C): C {
|
|
return null as C
|
|
}
|
|
|