Files
kotlin-fork/compiler/testData/diagnostics/tests/resolve/specialConstructions/elvisAsCall.kt
T
2019-03-04 11:29:38 +03:00

37 lines
1009 B
Kotlin
Vendored

// !WITH_NEW_INFERENCE
package a
interface 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() ?: <!OI;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)
// b is nullable if a != null
b <!UNSAFE_OPERATOR_CALL!>+<!> 1
}
fun testDataFlowInfo2(a: Int?, b: Int?) {
doInt(a ?: b!!)
// b is nullable if a != null
b <!UNSAFE_OPERATOR_CALL!>+<!> 1
}
fun testTypeMismatch(a: String?, b: Any) {
doInt(<!NI;TYPE_MISMATCH!><!OI;TYPE_MISMATCH!>a<!> ?: <!OI;TYPE_MISMATCH!>b<!><!>)
}