2 ||M|| This file is part of HELM, an Hypertextual, Electronic
3 ||A|| Library of Mathematics, developed at the Computer Science
4 ||T|| Department, University of Bologna, Italy.
6 ||T|| HELM is free software; you can redistribute it and/or
7 ||A|| modify it under the terms of the GNU General Public License
8 \ / version 2 or (at your option) any later version.
9 \ / This software is distributed as is, NO WARRANTY.
10 V_______________________________________________________________ *)
14 exception LibraryOutOfSync of string Lazy.t
17 (NUri.uri * NCic.obj) list *
18 (NUri.uri * string * NReference.reference) list *
19 NCic.obj NUri.UriMap.t;;
21 let time0 = [],[],NUri.UriMap.empty;;
22 let storage = ref [];;
23 let aliases = ref [];;
24 let cache = ref NUri.UriMap.empty;;
26 let time_travel (sto,ali,cac) = storage := sto; aliases := ali; cache := cac;;
28 let path_of_baseuri baseuri =
29 let uri = NUri.string_of_uri baseuri in
30 let path = String.sub uri 4 (String.length uri - 4) in
31 let path = Helm_registry.get "matita.basedir" ^ path in
32 let dirname = Filename.dirname path in
33 HExtlib.mkdir dirname;
39 let require0 ~baseuri =
40 let ch = open_in (path_of_baseuri baseuri) in
41 let mmagic,dump = Marshal.from_channel ch in
43 if mmagic <> magic then
44 raise (LibraryOutOfSync (lazy "The library is out of sync with the implementation. Please recompile the library."))
49 let serialize ~baseuri dump =
50 let ch = open_out (path_of_baseuri baseuri) in
51 Marshal.to_channel ch (magic,dump) [Marshal.Closures];
55 let ch = open_out (path_of_baseuri uri) in
56 Marshal.to_channel ch (magic,obj) [];
62 let refresh_uri uri = NUri.uri_of_string (NUri.string_of_uri uri);;
64 let rec refresh_uri_in_term =
66 NCic.Const (NReference.Ref (u,spec)) ->
67 NCic.Const (NReference.reference_of_spec (refresh_uri u) spec)
68 | t -> NCicUtils.map (fun _ _ -> ()) () (fun _ -> refresh_uri_in_term) t
71 let refresh_uri_in_obj (uri,height,metasenv,subst,obj_kind) =
72 assert (metasenv = []);
74 uri,height,metasenv,subst,
75 NCicUntrusted.map_obj_kind refresh_uri_in_term obj_kind
78 module type Serializer =
82 val register: string -> ('a -> status -> status) -> ('a -> obj)
83 val serialize: baseuri:NUri.uri -> obj list -> unit
84 val require: baseuri:NUri.uri -> status -> status
87 module Serializer(S: sig type status end) =
89 type status = S.status
90 type obj = string * Obj.t
92 let require1 = ref (fun _ -> assert false (* unknown data*))
93 let already_registered = ref []
95 let register tag require =
96 assert (not (List.mem tag !already_registered));
97 already_registered := tag :: !already_registered;
99 (fun (tag',data) as x ->
100 if tag=tag' then require (Obj.magic data) else !require1 x);
101 (fun x -> tag,Obj.repr x)
103 let serialize = serialize
105 let require ~baseuri status =
106 let dump = require0 ~baseuri in
107 List.fold_right !require1 dump status
110 let decompile ~baseuri =
111 Unix.unlink (path_of_baseuri baseuri)
112 (* WE ARE NOT REMOVING ALL THE OBJECTS YET! *)
116 let obj = require0 ~baseuri:uri in
117 refresh_uri_in_obj obj
123 (fun (_,name',nref) -> if name'=name then Some nref else None) !aliases
125 Not_found -> raise (NCicEnvironment.ObjectNotFound (lazy name))
131 (fun (uri',_,nref) -> if NUri.eq uri' uri then Some nref else None) !aliases
133 Not_found -> raise (NCicEnvironment.ObjectNotFound (lazy (NUri.string_of_uri uri)))
137 storage := (u,obj)::!storage;
138 let _,height,_,_,obj = obj in
141 NCic.Constant (_,name,None,_,_) ->
142 [u,name,NReference.reference_of_spec u NReference.Decl]
143 | NCic.Constant (_,name,Some _,_,_) ->
144 [u,name,NReference.reference_of_spec u (NReference.Def height)]
145 | NCic.Fixpoint (is_ind,fl,_) ->
147 (fun (_,name,recno,_,_) i ->
149 u,name,NReference.reference_of_spec u(NReference.Fix(i,recno,height))
151 u,name,NReference.reference_of_spec u (NReference.CoFix i)) fl
152 | NCic.Inductive (inductive,leftno,il,_) ->
155 (fun (_,iname,_,cl) i ->
159 NReference.reference_of_spec u (NReference.Con (i,j+1,leftno))
162 NReference.reference_of_spec u
163 (NReference.Ind (inductive,i,leftno))]
166 aliases := references @ !aliases;
167 !storage,!aliases,!cache
171 try List.assq u !storage
175 try NUri.UriMap.find u !cache
177 let ouri = NCic2OCic.ouri_of_nuri u in
179 let o,_ = CicEnvironment.get_obj CicUniv.oblivion_ugraph ouri in
180 let l = OCic2NCic.convert_obj ouri o in
181 List.iter (fun (u,_,_,_,_ as o) -> cache:= NUri.UriMap.add u o !cache) l;
183 with CicEnvironment.Object_not_found u ->
184 raise (NCicEnvironment.ObjectNotFound
185 (lazy (NUri.string_of_uri (OCic2NCic.nuri_of_ouri u))))
188 let clear_cache () = cache := NUri.UriMap.empty;;
190 NCicEnvironment.set_get_obj get_obj;;
191 NCicPp.set_get_obj get_obj;;