match src,tgt with
| CoercDb.Uri _, CoercDb.Uri _ ->
let c_from_tgt =
- List.filter (fun (f,_,_) -> eq_carr f tgt) coercions
+ List.filter
+ (fun (f,t,_) -> eq_carr f tgt (*&& not (eq_carr t src)*))
+ coercions
in
let c_to_src =
- List.filter (fun (_,t,_) -> eq_carr t src) coercions
+ List.filter
+ (fun (f,t,_) -> eq_carr t src (*&& not (eq_carr f tgt)*))
+ coercions
in
- (List.map (fun (_,t,u) -> src,[uri; u],t) c_from_tgt) @
- (List.map (fun (s,_,u) -> s,[u; uri],tgt) c_to_src) @
- (List.fold_left (
- fun l (s,_,u1) ->
- ((List.map (fun (_,t,u2) ->
- (s,[u1;uri;u2],t)
- )c_from_tgt)@l) )
- [] c_to_src)
+ (HExtlib.flatten_map
+ (fun (_,t,ul) -> List.map (fun u -> src,[uri; u],t) ul) c_from_tgt) @
+ (HExtlib.flatten_map
+ (fun (s,_,ul) -> List.map (fun u -> s,[u; uri],tgt) ul) c_to_src) @
+ (HExtlib.flatten_map
+ (fun (s,_,u1l) ->
+ HExtlib.flatten_map
+ (fun (_,t,u2l) ->
+ HExtlib.flatten_map
+ (fun u1 ->
+ List.map
+ (fun u2 -> (s,[u1;uri;u2],t))
+ u2l)
+ u1l)
+ c_from_tgt)
+ c_to_src)
| _ -> [] (* do not close in case source or target is not an indty ?? *)
;;
-let obj_attrs = [`Class `Coercion; `Generated]
+let obj_attrs n = [`Class (`Coercion n); `Generated]
exception UnableToCompose
(* generate_composite_closure (c2 (c1 s)) in the universe graph univ *)
-let generate_composite_closure rt c1 c2 univ =
+let generate_composite_closure rt c1 c2 univ arity =
let module RT = RefinementTool in
let c1_ty,univ = CicTypeChecker.type_of_aux' [] [] c1 univ in
let c2_ty,univ = CicTypeChecker.type_of_aux' [] [] c2 univ in
- let rec mk_implicits n =
- match n with
- | 0 -> []
- | _ -> (Cic.Implicit None) :: mk_implicits (n-1)
+ let rec mk_implicits = function
+ | 0 -> [] | n -> (Cic.Implicit None) :: mk_implicits (n-1)
in
- let rec mk_lambda_spline c = function
+ let rec mk_lambda_spline c namer = function
| 0 -> c
| n ->
Cic.Lambda
- (Cic.Name ("A" ^ string_of_int (n-1)),
+ (namer n,
(Cic.Implicit None),
- mk_lambda_spline c (n-1))
+ mk_lambda_spline c namer (n-1))
in
- let rec count_saturations_needed n = function
- | Cic.Prod (_,src, ((Cic.Prod _) as t)) -> count_saturations_needed (n+1) t
- | _ -> n
+ let count_saturations_needed t arity =
+ let rec aux acc n = function
+ | Cic.Prod (name,src, ((Cic.Prod _) as t)) ->
+ aux (acc@[name]) (n+1) t
+ | _ -> n,acc
+ in
+ let len,names = aux [] 0 t in
+ let len = len - arity in
+ List.fold_left
+ (fun (n,l) x -> if n < len then n+1,l@[x] else n,l) (0,[])
+ names
in
let compose c1 nc1 c2 nc2 =
Cic.Lambda
Cic.Appl ( c2 :: mk_implicits nc2 @
[ Cic.Appl ( c1 :: mk_implicits nc1 @ [Cic.Rel 1]) ]))
in
+(*
let order_metasenv metasenv =
- List.sort
- (fun (_,ctx1,_) (_,ctx2,_) -> List.length ctx1 - List.length ctx2)
- metasenv
+ let module OT = struct type t = int let compare = Pervasives.compare end in
+ let module S = HTopoSort.Make (OT) in
+ let dep i =
+ let _,_,ty = List.find (fun (j,_,_) -> j=i) metasenv in
+ let metas = List.map fst (CicUtil.metas_of_term ty) in
+ HExtlib.list_uniq (List.sort Pervasives.compare metas)
+ in
+ let om =
+ S.topological_sort (List.map (fun (i,_,_) -> i) metasenv) dep
+ in
+ List.map (fun i -> List.find (fun (j,_,_) -> i=j) metasenv) om
in
+*)
let rec create_subst_from_metas_to_rels n = function
| [] -> []
| (metano, ctx, ty)::tl ->
in
aux t
in
+ let order_body_menv term body_metasenv =
+ let rec purge_lambdas = function
+ | Cic.Lambda (_,_,t) -> purge_lambdas t
+ | t -> t
+ in
+ let skip_appl = function | Cic.Appl l -> List.tl l | _ -> assert false in
+ let metas_that_saturate l =
+ List.fold_left
+ (fun (acc,n) t ->
+ let metas = CicUtil.metas_of_term t in
+ let metas = List.map fst metas in
+ let metas =
+ List.filter
+ (fun i -> List.for_all (fun (j,_) -> j<>i) acc)
+ metas
+ in
+ let metas = List.map (fun i -> i,n) metas in
+ metas @ acc, n+1)
+ ([],0) l
+ in
+ let l_c2 = skip_appl (purge_lambdas term) in
+ let l_c1 =
+ match HExtlib.list_last l_c2 with
+ | Cic.Appl l -> List.tl l
+ | _ -> assert false
+ in
+ (* i should cut off the laet elem of l_c2 *)
+ let meta2no = fst (metas_that_saturate (l_c1 @ l_c2)) in
+ List.sort
+ (fun (i,ctx1,ty1) (j,ctx1,ty1) ->
+ try List.assoc i meta2no - List.assoc j meta2no
+ with Not_found -> assert false)
+ body_metasenv
+ in
+ let namer l n =
+ let l = List.map (function Cic.Name s -> s | _ -> "A") l in
+ let l = List.fold_left
+ (fun acc s ->
+ let rec add' s =
+ if List.exists ((=) s) acc then add' (s^"'") else s
+ in
+ acc@[add' s])
+ [] l
+ in
+ let l = List.rev l in
+ Cic.Name (List.nth l (n-1))
+ in
debug_print (lazy ("\nCOMPOSING"));
debug_print (lazy (" c1= "^CicPp.ppterm c1 ^" : "^ CicPp.ppterm c1_ty));
debug_print (lazy (" c2= "^CicPp.ppterm c2 ^" : "^ CicPp.ppterm c2_ty));
- let saturations_for_c1 = count_saturations_needed 0 c1_ty in
- let saturations_for_c2 = count_saturations_needed 0 c2_ty in
+ let saturations_for_c1, names_c1 = count_saturations_needed c1_ty 0 in
+ let saturations_for_c2, names_c2 = count_saturations_needed c2_ty arity in
let c = compose c1 saturations_for_c1 c2 saturations_for_c2 in
let spline_len = saturations_for_c1 + saturations_for_c2 in
- let c = mk_lambda_spline c spline_len in
- (* debug_print (lazy ("COMPOSTA: " ^ CicPp.ppterm c)); *)
+ let c = mk_lambda_spline c (namer (names_c1 @ names_c2)) spline_len in
+ debug_print (lazy ("COMPOSTA: " ^ CicPp.ppterm c));
let c, univ =
match rt.RT.type_of_aux' [] [] c univ with
| RT.Success (term, ty, metasenv, ugraph) ->
debug_print(lazy("COMPOSED REFINED: "^CicPp.ppterm term));
- let metasenv = order_metasenv metasenv in
- debug_print(lazy("ORDERED MENV: "^rt.RT.ppmetasenv [] metasenv));
+(* let metasenv = order_metasenv metasenv in *)
+(* debug_print(lazy("ORDERED MENV: "^rt.RT.ppmetasenv [] metasenv)); *)
let body_metasenv, lambdas_metasenv =
split_metasenv metasenv spline_len
in
+(*
debug_print(lazy("B_MENV: "^rt.RT.ppmetasenv [] body_metasenv));
debug_print(lazy("L_MENV: "^rt.RT.ppmetasenv [] lambdas_metasenv));
+*)
+ let body_metasenv = order_body_menv term body_metasenv in
+ debug_print(lazy("ORDERED_B_MENV: "^rt.RT.ppmetasenv [] body_metasenv));
let subst = create_subst_from_metas_to_rels spline_len body_metasenv in
- debug_print (lazy("SUBST: "^rt.RT.ppsubst subst));
+ debug_print (lazy("SUBST: "^rt.RT.ppsubst body_metasenv subst));
let term = rt.RT.apply_subst subst term in
debug_print (lazy ("COMPOSED SUBSTITUTED: " ^ CicPp.ppterm term));
(match rt.RT.type_of_aux' metasenv [] term ugraph with
let cleaned_ty =
FreshNamesGenerator.clean_dummy_dependent_types c_ty
in
- let obj = Cic.Constant ("xxxx",Some c,cleaned_ty,[],obj_attrs) in
+ let obj = Cic.Constant ("xxxx",Some c,cleaned_ty,[],obj_attrs arity) in
obj,univ
;;
(* removes from l the coercions that are in !coercions *)
let filter_duplicates l coercions =
List.filter (
- fun (src,_,tgt) ->
- not (List.exists (fun (s,t,u) ->
+ fun (src,l1,tgt) ->
+ not (List.exists (fun (s,t,l2) ->
CoercDb.eq_carr s src &&
- CoercDb.eq_carr t tgt)
+ CoercDb.eq_carr t tgt &&
+ try
+ List.for_all2 (fun u1 u2 -> UriManager.eq u1 u2) l1 l2
+ with
+ | Invalid_argument "List.for_all2" -> false)
coercions))
l
+let mangle s t l =
+ (*List.fold_left
+ (fun s x -> s ^ "_" ^ x)
+ (s ^ "_OF_" ^ t ^ "_BY" ^ string_of_int (List.length l)) l*)
+ s ^ "_OF_" ^ t
+;;
+
+exception ManglingFailed of string
+
+let number_if_already_defined buri name l =
+ let err () =
+ raise
+ (ManglingFailed
+ ("Unable to give an altenative name to " ^ buri ^ "/" ^ name ^ ".con"))
+ in
+ let rec aux n =
+ let suffix = if n > 0 then string_of_int n else "" in
+ let suri = buri ^ "/" ^ name ^ suffix ^ ".con" in
+ let uri = UriManager.uri_of_string suri in
+ let retry () =
+ if n < 100 then
+ begin
+ HLog.warn ("Uri " ^ suri ^ " already exists.");
+ aux (n+1)
+ end
+ else
+ err ()
+ in
+ if List.exists (UriManager.eq uri) l then retry ()
+ else
+ try
+ let _ = Http_getter.resolve' ~writable:true uri in
+ if Http_getter.exists' uri then retry () else uri
+ with
+ | Http_getter_types.Key_not_found _ -> uri
+ | Http_getter_types.Unresolvable_URI _ -> assert false
+ in
+ aux 0
+;;
+
(* given a new coercion uri from src to tgt returns
* a list of (new coercion uri, coercion obj, universe graph)
*)
-let close_coercion_graph rt src tgt uri =
+let close_coercion_graph rt src tgt uri baseuri =
(* check if the coercion already exists *)
let coercions = CoercDb.to_list () in
let todo_list = get_closure_coercions src tgt uri coercions in
let todo_list = filter_duplicates todo_list coercions in
- let new_coercions =
- HExtlib.filter_map (
- fun (src, l , tgt) ->
- try
- (match l with
- | [] -> assert false
- | he :: tl ->
- let first_step =
- Cic.Constant ("",
- Some (CoercDb.term_of_carr (CoercDb.Uri he)),
- Cic.Sort Cic.Prop, [], obj_attrs)
- in
- let o,_ =
- List.fold_left (fun (o,univ) coer ->
- match o with
- | Cic.Constant (_,Some c,_,[],_) ->
+ try
+ let new_coercions =
+ List.fold_left (
+ fun acc (src, l , tgt) ->
+ try
+ (match l with
+ | [] -> assert false
+ | he :: tl ->
+ let arity = match tgt with CoercDb.Fun n -> n | _ -> 0 in
+ let first_step =
+ Cic.Constant ("",
+ Some (CoercDb.term_of_carr (CoercDb.Uri he)),
+ Cic.Sort Cic.Prop, [], obj_attrs arity)
+ in
+ let o,_ =
+ List.fold_left (fun (o,univ) coer ->
+ match o with
+ | Cic.Constant (_,Some c,_,[],_) ->
generate_composite_closure rt c
- (CoercDb.term_of_carr (CoercDb.Uri coer)) univ
+ (CoercDb.term_of_carr (CoercDb.Uri coer)) univ arity
+ | _ -> assert false
+ ) (first_step, CicUniv.empty_ugraph) tl
+ in
+ let name_src = CoercDb.name_of_carr src in
+ let name_tgt = CoercDb.name_of_carr tgt in
+ let by = List.map UriManager.name_of_uri l in
+ let name = mangle name_tgt name_src by in
+ let c_uri =
+ number_if_already_defined baseuri name
+ (List.map (fun (_,_,u,_) -> u) acc)
+ in
+ let named_obj =
+ match o with
+ | Cic.Constant (_,bo,ty,vl,attrs) ->
+ Cic.Constant (name,bo,ty,vl,attrs)
| _ -> assert false
- ) (first_step, CicUniv.empty_ugraph) tl
- in
- let name_src = CoercDb.name_of_carr src in
- let name_tgt = CoercDb.name_of_carr tgt in
- let name = name_tgt ^ "_of_" ^ name_src in
- let buri = UriManager.buri_of_uri uri in
- let c_uri =
- UriManager.uri_of_string (buri ^ "/" ^ name ^ ".con")
- in
- let named_obj =
- match o with
- | Cic.Constant (_,bo,ty,vl,attrs) ->
- Cic.Constant (name,bo,ty,vl,attrs)
- | _ -> assert false
- in
- Some ((src,tgt,c_uri,named_obj)))
- with UnableToCompose -> None
- ) todo_list
- in
- new_coercions
+ in
+ (src,tgt,c_uri,named_obj))::acc
+ with UnableToCompose -> acc
+ ) [] todo_list
+ in
+ new_coercions
+ with ManglingFailed s -> HLog.error s; []
;;