Created
July 2, 2014 16:06
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Spurious warning from -Xlint in Scala 2.11.1
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| › scala -Xlint | |
| Welcome to Scala version 2.11.1 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0). | |
| Type in expressions to have them evaluated. | |
| Type :help for more information. | |
| scala> val x: PartialFunction[Any, Unit] = PartialFunction.empty | |
| x: PartialFunction[Any,Unit] = <function1> | |
| scala> val y: PartialFunction[Any, Unit] = PartialFunction.empty | |
| y: PartialFunction[Any,Unit] = <function1> | |
| scala> val z: PartialFunction[Any, Unit] = x orElse y | |
| z: PartialFunction[Any,Unit] = <function1> | |
| scala> type Receive = PartialFunction[Any, Unit] | |
| defined type alias Receive | |
| scala> val x: Receive = PartialFunction.empty | |
| x: Receive = <function1> | |
| scala> val y: Receive = PartialFunction.empty | |
| y: Receive = <function1> | |
| scala> val z: Receive = x orElse y | |
| <console>:10: warning: a type was inferred to be `Any`; this may indicate a programming error. | |
| val z: Receive = x orElse y | |
| ^ | |
| z: Receive = <function1> | |
| scala> |
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