diff options
| -rw-r--r-- | lib/top.ur | 2 | ||||
| -rw-r--r-- | src/reduce.sml | 18 |
2 files changed, 18 insertions, 2 deletions
@@ -8,7 +8,7 @@ fun compose (t1 ::: Type) (t2 ::: Type) (t3 ::: Type) (f1 : t2 -> t3) (f2 : t1 - fun txt (t ::: Type) (ctx ::: {Unit}) (use ::: {Type}) (sh : show t) (v : t) = cdata (show sh v) -val foldTR2 (tf1 :: Type -> Type) (tf2 :: Type -> Type) (tr :: {Type} -> Type) +fun foldTR2 (tf1 :: Type -> Type) (tf2 :: Type -> Type) (tr :: {Type} -> Type) (f : nm :: Name -> t :: Type -> rest :: {Type} -> [nm] ~ rest -> tf1 t -> tf2 t -> tr rest -> tr ([nm = t] ++ rest)) (i : tr []) = diff --git a/src/reduce.sml b/src/reduce.sml index 89b9b30e..9cc57cb2 100644 --- a/src/reduce.sml +++ b/src/reduce.sml @@ -148,7 +148,23 @@ fun exp env e = and reduceExp env = U.Exp.mapB {kind = kind, con = con, exp = exp, bind = bind} env -fun decl env d = d +fun decl env d = + case d of + DValRec [vi as (_, n, _, e, _)] => + let + fun kind _ = false + fun con _ = false + fun exp e = + case e of + ENamed n' => n' = n + | _ => false + in + if U.Exp.exists {kind = kind, con = con, exp = exp} e then + d + else + DVal vi + end + | _ => d val reduce = U.File.mapB {kind = kind, con = con, exp = exp, decl = decl, bind = bind} E.empty |