Dmitriy Novozhilov
31 lines
477 B
Kotlin
Vendored
31 lines
477 B
Kotlin
Vendored
interface D1 {
|
|
fun foo(): Any
|
|
}
|
|
|
|
interface D2 {
|
|
fun foo(): Number
|
|
}
|
|
|
|
interface F3 : D1, D2
|
|
|
|
open class D4 {
|
|
fun foo(): Int = 42
|
|
}
|
|
|
|
class F5 : F3, D4()
|
|
|
|
fun box(): String {
|
|
val z = F5()
|
|
var result = z.foo()
|
|
val d4: D4 = z
|
|
val f3: F3 = z
|
|
val d2: D2 = z
|
|
val d1: D1 = z
|
|
|
|
result += d4.foo()
|
|
result += f3.foo() as Int
|
|
result += d2.foo() as Int
|
|
result += d1.foo() as Int
|
|
return if (result == 5 * 42) "OK" else "Fail: $result"
|
|
}
|