Files
kotlin-fork/compiler/testData/cfgVariablesWithStdLib/contracts/tryCatch.kt
T
Dmitry Savvinov f487525a1d Effects: add cfg-tests on inlined lambdas
==========
Introduction of Effect System: 15/18
2017-10-12 11:55:26 +03:00

72 lines
1.2 KiB
Kotlin
Vendored

// LANGUAGE_VERSION: 1.3
import kotlin.internal.contracts.*
inline fun <T> myRun(block: () -> T): T {
contract {
callsInPlace(block, InvocationKind.EXACTLY_ONCE)
}
return block()
}
fun someComputation(): Int = 42
fun tryCatchInlined() {
val x: Int
myRun {
try {
x = someComputation()
x.inc()
}
catch (e: java.lang.Exception) {
// I?
x.inc()
}
}
// I?
x.inc()
}
fun possibleReassignmentInTryCatch() {
val x: Int
myRun {
x = 42
try {
x = someComputation()
x.inc()
}
catch (e: java.lang.Exception) {
// Possible reassignment
x = 42
x.inc()
}
// Initialized
x.inc()
}
// Initialized
x.inc()
}
fun tryCatchOuter() {
var x: Int
try {
myRun {
x = someComputation()
x.inc()
}
}
catch (e: java.lang.UnsupportedOperationException) {
myRun { x = 42 }
}
catch (e: java.lang.Exception) {
// do nothing
}
// I? because we can leave with last catch-clause which doesn't initialize x
x.inc()
}