20 lines
304 B
Kotlin
Vendored
20 lines
304 B
Kotlin
Vendored
interface A<T> {
|
|
fun foo(): T
|
|
}
|
|
|
|
interface B<T> : A<T>
|
|
|
|
class BImpl<T>(a: A<T>) : B<T>, A<T> by a
|
|
|
|
fun box(): String {
|
|
val b: B<String> = BImpl(object : A<String> {
|
|
override fun foo() = "OK"
|
|
})
|
|
|
|
if (b.foo() != "OK") return "fail 1"
|
|
|
|
val a: A<String> = b
|
|
|
|
return a.foo()
|
|
}
|