Dmitry Jemerov
19 lines
271 B
Kotlin
Vendored
19 lines
271 B
Kotlin
Vendored
interface A<T> {
|
|
fun id(t: T): T
|
|
}
|
|
|
|
open class B : A<String> {
|
|
override fun id(t: String) = t
|
|
}
|
|
|
|
class C : B()
|
|
|
|
class D : A<String> by C()
|
|
|
|
fun box(): String {
|
|
val d = D()
|
|
if (d.id("") != "") return "Fail"
|
|
val a: A<String> = d
|
|
return a.id("OK")
|
|
}
|