{-# OPTIONS_GHC -XModalTypes -fflatten -funsafe-skolemize -dcore-lint -XScopedTypeVariables #-} module Demo (demo) where demo const mult = <[ \(y::Int) -> ~~mult y ~~(const 12) ]> {- demo const mult = <[ \y -> ~~(demo' 0) ]> where demo' 0 = const 4 demo' n = const 4 -} -- demo' n = <[ ~~mult ~~(demo' (n-1)) ~~(demo' (n-1)) ]> {- demo const mult = <[ \y -> let y = ~~(const 4) in ~~mult (~~mult y y) (~~mult y y) ]> -} {- demo const mult = <[ \(y::Int) -> let four = ~~mult four ~~(const 4) -- twelve = {- {- ~~mult four -} ~~(const 12) -} four in four ]> -} demo :: forall c . (Int -> <[Int]>@c) -> <[Int -> Int -> Int]>@c -> <[Int -> Int]>@c {- demo const mult = <[ let twelve = ~~(const (12::Int)) in let four = ~~(const (4::Int)) in ~~mult four twelve ]> -} {- demo const mult = <[ let twelve = ~~(const (12::Int)) in let twelvea = twelve four = ~~(const (4::Int)) twelveb = twelve in ~~mult (~~mult twelvea four) (~~mult twelveb twelveb) ]> -} {- demo const mult = demo' 3 where demo' 0 = const 12 demo' 1 = const 12 demo' n = <[ ~~mult ~~(demo' (n-1)) ~~(demo' (n-2)) ]> -}