| import kotlin.reflect.KProperty |
| |
| class Delegate { |
| var inner = Derived() |
| operator fun getValue(t: Any?, p: KProperty<*>): Derived { |
| inner = Derived(inner.a + "-get") |
| return inner |
| } |
| operator fun setValue(t: Any?, p: KProperty<*>, i: Base) { inner = Derived(inner.a + "-" + i.a + "-set") } |
| } |
| |
| class A { |
| var prop: Derived by Delegate() |
| } |
| |
| fun box(): String { |
| val c = A() |
| if(c.prop.a != "derived-get") return "fail get ${c.prop.a}" |
| c.prop = Derived() |
| if (c.prop.a != "derived-get-derived-set-get") return "fail set ${c.prop.a}" |
| return "OK" |
| } |
| |
| open class Base(open val a: String = "base") |
| |
| class Derived(override val a: String = "derived"): Base() |
