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object test {
class Foo[a](val arg : a)
object Foo {
def apply [a](arg : a, right :a) = new Foo[a](arg)
def unapply [a](m : Foo[a]) = Some (m.arg)
}
def matchAndGetArgFromFoo[a]( e:Foo[a]):a = {e match { case Foo(x) => x }}
// Try the same thing as above but use function as arguemnt to Bar
// constructor
type FunIntToA [a] = (Int) => a
class Bar[a] (var f: FunIntToA[a])
object Bar {
def apply[a](f: FunIntToA[a]) = new Bar[a](f)
def unapply[a](m: Bar[a]) = Some (m.f)
}
def matchAndGetFunFromBar[a](b:Bar[a]) : FunIntToA[a] = { b match { case Bar(x) => x}}
}
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