Files
kotlin/compiler/testData/codegen/box/unit/nullableUnit.kt
Alexander Udalov f19ede0637 Don't treat values of type "Unit?" to be always equal to Unit.VALUE
Two changes here: StackValue.Constant does cast iff value is non-null (if null,
no cast between classes is really needed, as null can be an instance of
anything), and codegen for safe qualified expressions uses correct type for the
expression

 #KT-4265 Fixed
2013-12-09 15:52:19 +04:00

21 lines
421 B
Kotlin

fun isNull(x: Unit?) = x == null
fun isNullGeneric<T : Any>(x: T?) = x == null
fun deepIsNull0(x: Unit?) = isNull(x)
fun deepIsNull(x: Unit?) = deepIsNull0(x)
fun box(): String {
if (!isNull(null)) return "Fail 1"
val x: Unit? = null
if (!isNull(x)) return "Fail 2"
val y = x
if (!isNullGeneric(y)) return "Fail 3"
if (!deepIsNull((null : Unit?) ?: null)) return "Fail 4"
return "OK"
}