let (===) x y = Pervasives.compare x y = 0 ;;
+exception Dance;;
+
+let prof = HExtlib.profiling_enabled := true;HExtlib.profile "cache failures";;
+let prof2 = HExtlib.profiling_enabled := true;HExtlib.profile "dancing sorts";;
(* t1, t2 must be well-typed *)
let are_convertible ?(subst=[]) get_relevance =
+ let get_relevance_p ~subst context t args =
+ (match prof with {HExtlib.profile = p} -> p)
+ (fun (a,b,c,d) -> get_relevance ~subst:a b c d)
+ (subst,context,t,args)
+ in
+ let dance () = (match prof2 with {HExtlib.profile = p} -> p) (fun () -> ()) ()
+ in
let rec aux test_eq_only context t1 t2 =
let rec alpha_eq test_eq_only t1 t2 =
if t1 === t2 then
let term = NCicSubstitution.subst_meta l2 term in
aux test_eq_only context t1 term
with NCicUtils.Subst_not_found _ -> false)
-
+
+ | (C.Appl ((C.Const r1) as hd1::tl1), C.Appl (C.Const r2::tl2))
+ when (Ref.eq r1 r2 &&
+ List.length (E.get_relevance r1) >= List.length tl1) ->
+ let relevance = E.get_relevance r1 in
+ let relevance = match r1 with
+ | Ref.Ref (_,Ref.Con (_,_,lno)) ->
+ let _,relevance = HExtlib.split_nth lno relevance in
+ HExtlib.mk_list false lno @ relevance
+ | _ -> relevance
+ in
+ let fail = ref ~-1 in
+ let res = (try
+ HExtlib.list_forall_default3
+ (fun t1 t2 b -> fail := !fail+1; not b || aux test_eq_only context t1 t2)
+ tl1 tl2 true relevance
+ with Invalid_argument _ -> false)
+ in res
+ (* if res then true
+ else
+ let relevance = get_relevance_p ~subst context hd1 tl1 in
+ let _,relevance = HExtlib.split_nth !fail relevance in
+ let b,relevance = (match relevance with
+ | [] -> assert false
+ | b::tl -> b,tl) in
+ let _,tl1 = HExtlib.split_nth (!fail+1) tl1 in
+ let _,tl2 = HExtlib.split_nth (!fail+1) tl2 in
+ if (not b) then
+ (dance ();
+ try
+ HExtlib.list_forall_default3
+ (fun t1 t2 b -> not b || aux test_eq_only context t1 t2)
+ tl1 tl2 true relevance
+ with Invalid_argument _ -> false)
+ else false *)
| (C.Appl (hd1::tl1), C.Appl (hd2::tl2)) ->
aux test_eq_only context hd1 hd2 &&
let relevance = get_relevance ~subst context hd1 tl1 in