-{-# OPTIONS_GHC -XModalTypes -fflatten -funsafe-skolemize -dcore-lint -XScopedTypeVariables #-}
+{-# OPTIONS_GHC -XModalTypes -fflatten -funsafe-skolemize -dcore-lint -XScopedTypeVariables -fsimpleopt-before-flatten #-}
module Demo (demo) where
+{-
+demo const mult =
+ <[ \y ->
+ ~~mult
+ (~~mult y y)
+ (~~mult y y)
+ ]>
+-}
+
+
+
+
+
-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 const mult =
+ <[ \y ->
+ ~~mult
+ (~~mult (~~mult y y) (~~mult y y))
+ (~~mult (~~mult y y) (~~mult y y))
+ ]>
-}
--- demo' n = <[ ~~mult ~~(demo' (n-1)) ~~(demo' (n-1)) ]>
{-
demo const mult =
+ <[ \y -> ~~(foo 4) ]>
+ where
+ foo 0 = const (12::Int)
+ foo n = <[ let bar = ~~(foo (n-1))
+ in ~~mult bar bar
+ ]>
+
+-}
+
+
+
+{-
+demo const mult =
+ <[ \y -> ~~(foo 3) ]>
+ where
+ foo 0 = const (12::Int)
+ foo n = <[ let recurs = ~~(foo (n-1))
+ in ~~mult recurs recurs
+ ]>
+
+-}
+
+
+
+
+
+demo const mult =
+ <[ \y ->
+ let foo = ~~mult (~~mult foo (~~mult y foo)) y
+ in foo ]>
+
+
+
+
+
+
+
+
+
+
+
+
+{-
+demo const mult =
+ <[ \y -> ~~(foo 2 <[y]>) ]>
+ where
+ foo 0 y = const (12::Int)
+ foo n y = <[ let recurs = ~~(foo (n-1) y)
+ in ~~mult recurs recurs
+ ]>
+-}
+
+
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+
+
+-- demo const mult = <[ \(y::Int) -> ~~mult y ~~(const 12) ]>
+-- demo' n = <[ ~~mult ~~(demo' (n-1)) ~~(demo' (n-1)) ]>
+-- golden
+{-
+demo const mult =
+ <[ \y ->
+ let twelve = ~~mult twelve y
+ in twelve ]>
+-}
+
+{-
+demo const mult =
<[ \y -> let y = ~~(const 4) in ~~mult (~~mult y y) (~~mult y y) ]>
-}
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
demo' 0 = const 12
demo' 1 = const 12
demo' n = <[ ~~mult ~~(demo' (n-1)) ~~(demo' (n-2)) ]>
--}
\ No newline at end of file
+-}
+
+-- BUG
+--demo const mult = <[ \y -> ~~(demo' 0) ]>
+-- where
+-- demo' 0 = const 4
+-- demo' n = const 4