diff options
Diffstat (limited to 'kernel/cClosure.ml')
| -rw-r--r-- | kernel/cClosure.ml | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/kernel/cClosure.ml b/kernel/cClosure.ml index b1181157e1..219ea5b24a 100644 --- a/kernel/cClosure.ml +++ b/kernel/cClosure.ml @@ -91,6 +91,7 @@ module type RedFlagsSig = sig val red_add : reds -> red_kind -> reds val red_sub : reds -> red_kind -> reds val red_add_transparent : reds -> transparent_state -> reds + val red_transparent : reds -> transparent_state val mkflags : red_kind list -> reds val red_set : reds -> red_kind -> bool val red_projection : reds -> projection -> bool @@ -164,6 +165,8 @@ module RedFlags = (struct let (l1,l2) = red.r_const in { red with r_const = Id.Pred.remove id l1, l2 } + let red_transparent red = red.r_const + let red_add_transparent red tr = { red with r_const = tr } @@ -847,6 +850,14 @@ let contract_fix_vect fix = in (subs_cons(Array.init nfix make_body, env), thisbody) +let unfold_projection info p = + if red_projection info.i_flags p + then + let open Declarations in + let pb = lookup_projection p (info_env info) in + Some (Zproj (pb.proj_npars, pb.proj_arg, Projection.constant p)) + else None + (*********************************************************************) (* A machine that inspects the head of a term until it finds an atom or a subterm that may produce a redex (abstraction, @@ -865,15 +876,9 @@ let rec knh info m stk = | (None, stk') -> (m,stk')) | FCast(t,_,_) -> knh info t stk | FProj (p,c) -> - let unf = Projection.unfolded p in - if unf || red_set info.i_flags (fCONST (Projection.constant p)) then - (match try Some (lookup_projection p (info_env info)) with Not_found -> None with - | None -> (m, stk) - | Some pb -> - knh info c (Zproj (pb.Declarations.proj_npars, pb.Declarations.proj_arg, - Projection.constant p) - :: zupdate m stk)) - else (m,stk) + (match unfold_projection info p with + | None -> (m, stk) + | Some s -> knh info c (s :: zupdate m stk)) (* cases where knh stops *) | (FFlex _|FLetIn _|FConstruct _|FEvar _| |