blob: a81e1b9140ae8ba1911978e4fe4435aa0d84710a [file] [log] [blame]
// !LANGUAGE: +InlineClasses
inline class Result<T>(val a: Any?) {
fun getOrThrow(): T = a as T
}
abstract class ResultReceiver<T> {
abstract fun receive(result: Result<T>)
}
fun <T> ResultReceiver(f: (Result<T>) -> Unit): ResultReceiver<T> =
object : ResultReceiver<T>() {
override fun receive(result: Result<T>) {
f(result)
}
}
fun test() {
var invoked = false
val receiver = ResultReceiver<Int> { result ->
val intResult = result.getOrThrow()
invoked = true
}
receiver.receive(Result(42))
if (!invoked) {
throw RuntimeException("Fail")
}
}
fun box(): String {
test()
return "OK"
}