Files
kotlin-fork/compiler/testData/diagnostics/tests/smartCasts/elvis/impossible.kt
T
2020-02-20 12:34:34 +03:00

42 lines
985 B
Kotlin
Vendored

// !WITH_NEW_INFERENCE
// !LANGUAGE: +BooleanElvisBoundSmartCasts
// See KT-20752
class Unstable {
val first: String? get() = null
}
class StringList {
fun remove(s: String) = s
}
fun StringList.remove(s: String?) = s ?: ""
fun String.isEmpty() = this == ""
fun foo(list: StringList, arg: Unstable) {
list.remove(arg.first)
if (arg.first?.isEmpty() ?: false) {
// Should be still resolved to extension, without smart cast or smart cast impossible
list.remove(<!OI;SMARTCAST_IMPOSSIBLE!>arg.first<!>)
}
}
class UnstableBoolean {
val first: Boolean? get() = null
}
class BooleanList {
fun remove(b: Boolean) = b
}
fun BooleanList.remove(b: Boolean?) = b ?: false
fun bar(list: BooleanList, arg: UnstableBoolean) {
list.remove(arg.first)
if (arg.first ?: false) {
// Should be still resolved to extension, without smart cast or smart cast impossible
list.remove(<!OI;SMARTCAST_IMPOSSIBLE!>arg.first<!>)
}
}