Zalim Bashorov
31 lines
511 B
Kotlin
31 lines
511 B
Kotlin
package foo
|
|
|
|
class D
|
|
|
|
open class A
|
|
|
|
open class B : A()
|
|
|
|
open class C : B()
|
|
|
|
fun box(): String {
|
|
val a: Any = A()
|
|
val b: Any = B()
|
|
val c: Any = C()
|
|
if (a !is A) return "a !is A"
|
|
|
|
val t = a is A
|
|
if (!t) return "t = a is A; t != true"
|
|
|
|
if (b !is A) return "b !is A"
|
|
if (b !is B) return "b !is B"
|
|
|
|
if (c !is A) return "c !is A"
|
|
if (c !is B) return "c !is B"
|
|
if (c !is C) return "c !is C"
|
|
|
|
if (a is D) return "a is D"
|
|
if (b is D) return "b is D"
|
|
|
|
return "OK"
|
|
} |