data Nat : Type where
     Z : Nat
     S : Nat -> Nat

plus : Nat -> Nat -> Nat
plus Z y = y
plus (S k) y = S (plus k y)

data Vect : ? -> Type -> Type where
     Nil : Vect Z a
     Cons : a -> Vect k a -> Vect (S k) a

record Foo where
  constructor MkFoo
  fnum : Integer
  fstr : String

testRec : Foo
testRec = MkFoo 99 "Red balloons"

record MyDPair a (p : a -> Type) where
  constructor MkMyDPair
  dfst : a
  dsnd : p dfst

record DVect a where
  constructor MkDVect
  test : Integer
  {n : Nat}
  vec : Vect n a

record Person where
  constructor MkPerson
  name : String
  age, shoesize : Integer
  some_fn : b -> b -- 'b' bound as an argument to MkPerson

testPair : MyDPair Nat (\n => Vect n Integer)
testPair = MkMyDPair _ (Cons 1 (Cons 2 (Cons 3 Nil)))

testDVect : DVect Integer
testDVect = MkDVect 94 (Cons 1 (Cons 2 (Cons 3 Nil))) 

testPerson : Person
testPerson = MkPerson "Wowbagger" 1337 10 (\x => S x)