Created
June 18, 2014 18:21
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| trait Extractor[T, U] { def unapply(x: T): Option[U] } | |
| object Extractor { | |
| def apply[T, U](f: PartialFunction[T, U]) = new Extractor[T, U] { | |
| def unapply(x: T) = f.lift(x) | |
| } | |
| } | |
| val EmployedAt = Extractor[Person, Company] { | |
| case Person(_, _, Some(Position(_, Some(c)))) => c | |
| } |
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