Files
kotlin-fork/idea/testData/checker/Casts.kt
T
Mikhail Zarechenskiy f518e8ebb8 Prefer stable types to diagnose useless cast
#KT-11622 Fixed
2017-04-05 21:35:05 +03:00

19 lines
514 B
Kotlin
Vendored

fun <T> checkSubtype(t: T) = t
fun test() : Unit {
var x : Int? = 0
var y : Int = 0
checkSubtype<Int?>(x)
checkSubtype<Int>(y)
checkSubtype<Int>(x as Int)
checkSubtype<Int>(y <warning descr="[USELESS_CAST] No cast needed">as Int</warning>)
checkSubtype<Int?>(x as Int?)
checkSubtype<Int?>(y as Int?)
checkSubtype<Int?>(x as Int?)
checkSubtype<Int?>(y <warning descr="[USELESS_CAST] No cast needed">as? Int</warning>)
checkSubtype<Int?>(x as? Int?)
checkSubtype<Int?>(y as? Int?)
Unit
}