Igor Chevdar
25 lines
377 B
Kotlin
25 lines
377 B
Kotlin
// abstract bridge
|
|
interface A<T> {
|
|
fun foo(): T
|
|
}
|
|
|
|
abstract class B<T>: A<T>
|
|
|
|
abstract class C: B<Int>()
|
|
|
|
class D: C() {
|
|
override fun foo(): Int {
|
|
return 42
|
|
}
|
|
}
|
|
|
|
fun main(args: Array<String>) {
|
|
val d = D()
|
|
val c: C = d
|
|
val b: B<Int> = d
|
|
val a: A<Int> = d
|
|
println(d.foo())
|
|
println(c.foo())
|
|
println(b.foo())
|
|
println(a.foo())
|
|
} |