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object Test1772B {
@annotation.tailrec
def bar : Nothing = { // error: TailRec optimisation not applicable
try {
throw new RuntimeException
} catch {
case _: Throwable => bar
} finally {
bar
}
}
@annotation.tailrec
def baz : Nothing = { // error: TailRec optimisation not applicable
try {
throw new RuntimeException
} catch {
case _: Throwable => baz
} finally {
???
}
}
@annotation.tailrec
def boz : Nothing = { // error: TailRec optimisation not applicable
try {
throw new RuntimeException
} catch {
case _: Throwable => boz; ???
}
}
@annotation.tailrec
def bez : Nothing = { // error: TailRec optimisation not applicable
try {
bez
} finally {
???
}
}
// the `liftedTree` local method will prevent a tail call here.
@annotation.tailrec
def bar(i : Int) : Int = { // error: TailRec optimisation not applicable
if (i == 0) 0
else 1 + (try {
throw new RuntimeException
} catch {
case _: Throwable => bar(i - 1) // old-error
})
}
}
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