+ match (look_for_dummy_main metadata) with
+ | None->
+(* debug_print "Caso None"; *)
+ (* no dummy in main position *)
+ let metadata = List.filter is_dummy metadata in
+ let constraints = List.map MetadataTypes.constr_of_metadata metadata in
+ let concl_card = Some (MetadataConstraints.Eq no_concl) in
+ let full_card = Some (MetadataConstraints.Eq no_full) in
+ let diff = Some (MetadataConstraints.Eq (no_hyp - no_concl)) in
+ Constr.at_least ~dbd ?concl_card ?full_card ?diff constraints
+ | Some (depth, dummy_type) ->
+(* debug_print
+ (sprintf "Caso Some %d %s" depth (CicPp.ppterm dummy_type)); *)
+ (* a dummy in main position *)
+ let metadata_for_dummy_type =
+ MetadataExtractor.compute ~body:None ~ty:dummy_type in
+ (* Let us skip this for the moment
+ let main_of_dummy_type =
+ look_for_dummy_main metadata_for_dummy_type in *)
+ let metadata = List.filter is_dummy metadata in
+ let constraints = List.map MetadataTypes.constr_of_metadata metadata in
+ let metadata_for_dummy_type =
+ List.filter is_dummy metadata_for_dummy_type in
+ let metadata_for_dummy_type, depth' =
+ (* depth' = the depth of the A -> A -> Prop *)
+ List.fold_left (fun (acc,dep) c ->
+ match c with
+ | `Sort (s,`MainConclusion (Some (MetadataTypes.Eq i))) ->
+ (`Sort (s,`MainConclusion (Some (MetadataTypes.Ge i))))::acc, i
+ | `Obj (s,`MainConclusion (Some (MetadataTypes.Eq i))) ->
+ (`Obj (s,`MainConclusion (Some (MetadataTypes.Ge i))))::acc, i
+ | `Rel (`MainConclusion (Some (MetadataTypes.Eq i))) ->
+ (`Rel (`MainConclusion (Some (MetadataTypes.Ge i))))::acc, i
+ | _ -> (c::acc,dep)) ([],0) metadata_for_dummy_type
+ in
+ let constraints_for_dummy_type =
+ List.map MetadataTypes.constr_of_metadata metadata_for_dummy_type in
+ (* start with the dummy constant in main conlusion *)
+ let from = ["refObj as table0"] in
+ let where =
+ [sprintf "table0.h_position = \"%s\"" MetadataTypes.mainconcl_pos;
+ sprintf "table0.h_depth >= %d" depth] in
+ let (n,from,where) =
+ List.fold_left
+ (MetadataConstraints.add_constraint ~start:2)
+ (2,from,where) constraints in
+ let concl_card = Some (MetadataConstraints.Eq no_concl) in
+ let full_card = Some (MetadataConstraints.Eq no_full) in
+ let diff = Some (MetadataConstraints.Eq (no_hyp - no_concl)) in
+ let (n,from,where) =
+ MetadataConstraints.add_all_constr
+ (n,from,where) concl_card full_card diff in
+ (* join with the constraints over the type of the constant *)
+ let where =
+ (sprintf "table0.h_occurrence = table%d.source" n)::where in
+ let where =
+ sprintf "table0.h_depth - table%d.h_depth = %d"
+ n (depth - depth')::where
+ in
+ let (m,from,where) =
+ List.fold_left
+ (MetadataConstraints.add_constraint ~start:n)
+ (n,from,where) constraints_for_dummy_type in
+ Constr.exec ~dbd (m,from,where)
+
+(* fwd_simpl ****************************************************************)
+
+let rec map_filter f n = function
+ | [] -> []
+ | hd :: tl ->
+ match f n hd with
+ | None -> map_filter f (succ n) tl
+ | Some hd -> hd :: map_filter f (succ n) tl
+
+let get_uri t =
+ let aux = function
+ | Cic.Appl (hd :: tl) -> Some (CicUtil.uri_of_term hd, tl)
+ | hd -> Some (CicUtil.uri_of_term hd, [])
+ in
+ try aux t with
+ | Invalid_argument "uri_of_term" -> None
+
+let get_metadata t =
+ let f n t =
+ match get_uri t with
+ | None -> None
+ | Some (uri, _) -> Some (n, uri)
+ in
+ match get_uri t with
+ | None -> None
+ | Some (uri, args) -> Some (uri, map_filter f 1 args)
+
+let debug_metadata = function
+ | None -> ()
+ | Some (outer, inners) ->
+ let f (n, uri) = Printf.eprintf "%s: %i %s\n" "fwd" n uri in
+ Printf.eprintf "\n%s: %s\n" "fwd" outer;
+ List.iter f inners; prerr_newline ()