object Foo
{
    class Bar(val x : String)
    def p(b : Bar) = Console.println(b.x)

    def unapply(s : String) : Option[Tuple1[Bar]] =
        Some(Tuple1(new Bar(s)))
}

object Test
{
    def main(argv : Array[String]) = {
        "baz" match {
            case Foo(x) =>
                Foo.p(x)
        }
    }
}