Svetlana Isakova
34 lines
882 B
Kotlin
34 lines
882 B
Kotlin
package a
|
|
|
|
trait A
|
|
fun doList(l: List<Int>) = l
|
|
fun doInt(i: Int) = i
|
|
fun getList(): List<Int>? = null
|
|
fun <T> strangeList(f: (T) -> Unit): List<T> = throw Exception("$f")
|
|
fun <T: A> emptyListOfA(): List<T> = throw Exception()
|
|
|
|
//-------------------------------
|
|
|
|
fun testElvis(a: Int?, b: Int?) {
|
|
if (a != null) {
|
|
doInt(b ?: <!DEBUG_INFO_SMARTCAST!>a<!>)
|
|
}
|
|
doList(getList() ?: <!TYPE_INFERENCE_UPPER_BOUND_VIOLATED!>emptyListOfA<!>()) //should be an error
|
|
doList(getList() ?: strangeList { doInt(it) }) //lambda was not analyzed
|
|
}
|
|
|
|
|
|
fun testDataFlowInfo1(a: Int?, b: Int?) {
|
|
val c: Int = a ?: b!!
|
|
doInt(c)
|
|
<!DEBUG_INFO_SMARTCAST!>b<!> + 1
|
|
}
|
|
|
|
fun testDataFlowInfo2(a: Int?, b: Int?) {
|
|
doInt(a ?: b!!)
|
|
<!DEBUG_INFO_SMARTCAST!>b<!> + 1
|
|
}
|
|
|
|
fun testTypeMismatch(a: String?, b: Any) {
|
|
doInt(<!TYPE_MISMATCH!>a<!> ?: <!TYPE_MISMATCH!>b<!>)
|
|
} |