package codegen.basics.safe_cast import kotlin.test.* open class A class B : A() class C fun foo(a: Any) : A? = a as? A fun safe_cast_positive(): Boolean { val b = B() return foo(b) === b } fun safe_cast_negative(): Boolean { val c = C() return foo(c) == null } @Test fun runTest() { val safeCastPositive = safe_cast_positive().toString() val safeCastNegative = safe_cast_negative().toString() println("safe_cast_positive: " + safeCastPositive) println("safe_cast_negative: " + safeCastNegative) }