blob: fe8438abca6828bf3e9ba81838c01f815afbebaa [file] [log] [blame]
fun Long.id() = this
fun String.drop2() = if (length >= 2) subSequence(2, length) else null
fun String.anyLength(): Any = length
fun doSimple(s: String?) = s?.length == 3
fun doLongReceiver(x: Long) = x?.id() == 3L
fun doChain(s: String?) = s?.drop2()?.length == 1
fun doIf(s: String?) =
if (s?.length == 1) "A" else "B"
fun doCmpWithAny(s: String?) =
s?.anyLength() == 3
fun doIfNot(s: String?) =
if (!(s?.length == 1)) "A" else "B"
fun doIfNotNot(s: String?) =
if (!!(s?.length == 1)) "A" else "B"
fun box(): String = when {
doSimple(null) -> "failed 1"
doSimple("1") -> "failed 2"
!doSimple("123") -> "failed 3"
doLongReceiver(2L) -> "failed 4"
!doLongReceiver(3L) -> "failed 5"
doChain(null) -> "failed 6"
doChain("1") -> "failed 7"
!doChain("123") -> "failed 7"
doIf("1") != "A" -> "failed 8"
doIf("123") != "B" -> "failed 9"
doIf(null) != "B" -> "failed 10"
doCmpWithAny(null) -> "failed 11"
doCmpWithAny("1") -> "failed 12"
!doCmpWithAny("123") -> "failed 13"
doIfNot("1") != "B" -> "failed 8"
doIfNot("123") != "A" -> "failed 9"
doIfNot(null) != "A" -> "failed 10"
doIfNotNot("1") != "A" -> "failed 8"
doIfNotNot("123") != "B" -> "failed 9"
doIfNotNot(null) != "B" -> "failed 10"
else -> "OK"
}