* http://cs.unibo.it/helm/.
*)
-let _profiler = <:profiler<_profiler>>;;
+(* let _profiler = <:profiler<_profiler>>;; *)
(* $Id$ *)
let lookup = Subst.lookup_subst in
let rec occurs_check subst what where =
match where with
- | t when what = t -> true
+ | Cic.Meta(i,_) when i = what -> true
| C.Appl l -> List.exists (occurs_check subst what) l
| C.Meta _ ->
let t = lookup where subst in
in
match s, t with
| s, t when s = t -> subst, menv
+ (* sometimes the same meta has different local contexts; this
+ could create "cyclic" substitutions *)
+ | C.Meta (i, _), C.Meta (j, _) when i=j -> subst, menv
| C.Meta (i, _), C.Meta (j, _)
when (locked locked_menv i) &&(locked locked_menv j) ->
raise
unif subst menv t s
| C.Meta (i, _), C.Meta (j, _) when (i > j) && not (locked locked_menv j) ->
unif subst menv t s
- | C.Meta _, t when occurs_check subst s t ->
+ | C.Meta (i,_), t when occurs_check subst i t ->
raise
(U.UnificationFailure (lazy "Inference.unification.unif"))
| C.Meta (i, l), t when (locked locked_menv i) ->
(Printf.sprintf "OK: %s" (CicPp.ppterm term)));
let o = !Utils.compare_terms t1 t2 in
let stat = (ty,t1,t2,o) in
- let w = compute_equality_weight stat in
+ (* let w = compute_equality_weight stat in *)
+ let w = 0 in
let proof = Equality.Exact p in
let e = Equality.mk_equality (w, proof, stat, newmetas) in
Some e, (newmeta+1)
let equations_blacklist = UriManager.UriSet.empty;;
let tty_of_u u =
- let _ = <:start<tty_of_u>> in
+(* let _ = <:start<tty_of_u>> in *)
let t = CicUtil.term_of_uri u in
let ty, _ = CicTypeChecker.type_of_aux' [] [] t CicUniv.empty_ugraph in
- let _ = <:stop<tty_of_u>> in
+(* let _ = <:stop<tty_of_u>> in *)
t, ty
;;
u, t, ty
;;
-let find_library_equalities dbd context status maxmeta =
+let find_library_equalities caso_strano dbd context status maxmeta =
let module C = Cic in
let module S = CicSubstitution in
let module T = CicTypeChecker in
- let _ = <:start<equations_for_goal>> in
- let eqs = (MetadataQuery.equations_for_goal ~dbd status) in
- let _ = <:stop<equations_for_goal>> in
+(* let _ = <:start<equations_for_goal>> in *)
+ let signature =
+ if caso_strano then
+ begin
+ let proof, goalno = status in
+ let _,metasenv,_,_ = proof in
+ let metano,context,ty = CicUtil.lookup_meta goalno metasenv in
+ match ty with
+ | Cic.Appl[Cic.MutInd(u,0,_);eq_ty;l;r] ->
+ (let mainl, sigl = MetadataConstraints.signature_of l in
+ let mainr, sigr = MetadataConstraints.signature_of r in
+ match mainl,mainr with
+ | Some (uril,tyl), Some (urir, tyr)
+ when LibraryObjects.is_eq_URI uril &&
+ LibraryObjects.is_eq_URI urir &&
+ tyl = tyr ->
+ Some (mainl,MetadataConstraints.UriManagerSet.union sigl sigr)
+ | _ ->
+ let u = (UriManager.uri_of_string
+ (UriManager.string_of_uri u ^ "#xpointer(1/1)")) in
+ let main = Some (u, []) in
+ Some (main,MetadataConstraints.UriManagerSet.union sigl sigr))
+ | _ -> assert false
+ end
+ else
+ None
+ in
+ let eqs = (MetadataQuery.equations_for_goal ~dbd ?signature status) in
+(* let _ = <:stop<equations_for_goal>> in *)
let candidates =
List.fold_left
(fun l uri ->
res
;;
-let get_stats () = <:show<Inference.>> ;;
+let get_stats () = "" (*<:show<Inference.>>*) ;;