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object Test {
Some(Some(1)) collect {
case Some(a) => 2
case Some(b) => 3 // no warning was emitted
}
(Some(1): @ unchecked) match {
case Some(a) => 2
case Some(b) => 3 // no warning was emitted
}
// A variation of SI-6011, which eluded the fix
// in 2.10.0.
//
// duplicate keys in SWITCH, can't pick arbitrarily one of them to evict, see SI-6011.
// at scala.reflect.internal.SymbolTable.abort(SymbolTable.scala:50)
// at scala.tools.nsc.Global.abort(Global.scala:249)
// at scala.tools.nsc.backend.jvm.GenASM$JPlainBuilder$jcode$.emitSWITCH(GenASM.scala:1850)
((1: Byte): @unchecked) match {
case 1 => 2
case 1 => 3 // crash
}
}
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