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
15 exception IncludedFileNotCompiled of string * string
19 let refresh_uri uri = NUri.uri_of_string (NUri.string_of_uri uri);;
21 let refresh_uri_in_universe =
22 List.map (fun (x,u) -> x, refresh_uri u)
25 let refresh_uri_in_reference (NReference.Ref (uri,spec)) =
26 NReference.reference_of_spec (refresh_uri uri) spec
28 let rec refresh_uri_in_term =
30 | NCic.Meta (i,(n,NCic.Ctx l)) ->
31 NCic.Meta (i,(n,NCic.Ctx (List.map refresh_uri_in_term l)))
32 | NCic.Meta _ as t -> t
33 | NCic.Const ref -> NCic.Const (refresh_uri_in_reference ref)
34 | NCic.Sort (NCic.Type l) -> NCic.Sort (NCic.Type (refresh_uri_in_universe l))
35 | NCic.Match (NReference.Ref (uri,spec),outtype,term,pl) ->
36 let r = NReference.reference_of_spec (refresh_uri uri) spec in
37 let outtype = refresh_uri_in_term outtype in
38 let term = refresh_uri_in_term term in
39 let pl = List.map refresh_uri_in_term pl in
40 NCic.Match (r,outtype,term,pl)
41 | t -> NCicUtils.map (fun _ _ -> ()) () (fun _ -> refresh_uri_in_term) t
44 let refresh_uri_in_obj (uri,height,metasenv,subst,obj_kind) =
45 assert (metasenv = []);
47 refresh_uri uri,height,metasenv,subst,
48 NCicUntrusted.map_obj_kind refresh_uri_in_term obj_kind
51 let path_of_baseuri ?(no_suffix=false) baseuri =
52 let uri = NUri.string_of_uri baseuri in
53 let path = String.sub uri 4 (String.length uri - 4) in
54 let path = Helm_registry.get "matita.basedir" ^ path in
55 let dirname = Filename.dirname path in
56 HExtlib.mkdir dirname;
63 let require_path path =
64 let ch = open_in path in
65 let mmagic,dump = Marshal.from_channel ch in
67 if mmagic <> magic then
68 raise (LibraryOutOfSync (lazy "The library is out of sync with the implementation. Please recompile the library."))
73 let require0 ~baseuri =
74 require_path (path_of_baseuri baseuri)
77 let db_path () = Helm_registry.get "matita.basedir" ^ "/ng_db.ng";;
81 [ `Obj of NUri.uri * NCic.obj
82 | `Constr of NCic.universe * NCic.universe] list *
83 (NUri.uri * string * NReference.reference) list *
84 NCic.obj NUri.UriMap.t *
88 let time0 = [],[],NUri.UriMap.empty,[];;
89 let storage = ref [];;
90 let local_aliases = ref [];;
91 let cache = ref NUri.UriMap.empty;;
92 let includes = ref [];;
94 let load_db,set_global_aliases,get_global_aliases,add_deps,get_deps,remove_deps=
95 let global_aliases = ref [] in
96 let rev_includes_map = ref NUri.UriMap.empty in
98 let ch = open_out (db_path ()) in
99 Marshal.to_channel ch (magic,(!global_aliases,!rev_includes_map)) [];
102 HExtlib.mkdir (Helm_registry.get "matita.basedir");
104 let ga,im = require_path (db_path ()) in
107 (fun (uri,name,NReference.Ref (uri2,spec)) ->
108 refresh_uri uri,name,NReference.reference_of_spec (refresh_uri uri2) spec
112 (fun u l im -> NUri.UriMap.add (refresh_uri u) (List.map refresh_uri l) im
113 ) im NUri.UriMap.empty
115 global_aliases := ga;
116 rev_includes_map := im
120 let get_deps_one_step u =
121 try NUri.UriMap.find u !rev_includes_map with Not_found -> [] in
126 if List.mem he res then
129 aux (he::res) (get_deps_one_step he @ tl)
133 rev_includes_map := NUri.UriMap.remove u !rev_includes_map;
136 (fun l -> List.filter (fun uri -> not (NUri.eq u uri)) l) !rev_includes_map;
140 (fun ga -> global_aliases := ga; store_db ()),
141 (fun () -> !global_aliases),
143 rev_includes_map := NUri.UriMap.add u (l @ get_deps u) !rev_includes_map;
153 val timestamp = (time0 : timestamp)
154 method timestamp = timestamp
155 method set_timestamp v = {< timestamp = v >}
158 let time_travel status =
159 let sto,ali,cac,inc = status#timestamp in
160 let diff_len = List.length !storage - List.length sto in
161 let to_be_deleted,_ = HExtlib.split_nth diff_len !storage in
162 if List.length to_be_deleted > 0 then
163 NCicEnvironment.invalidate_item (HExtlib.list_last to_be_deleted);
164 storage := sto; local_aliases := ali; cache := cac; includes := inc
167 let serialize ~baseuri dump =
168 let ch = open_out (path_of_baseuri baseuri) in
169 Marshal.to_channel ch (magic,dump) [];
174 let ch = open_out (path_of_baseuri uri) in
175 Marshal.to_channel ch (magic,obj) [];
179 set_global_aliases (!local_aliases @ get_global_aliases ());
180 List.iter (fun u -> add_deps u [baseuri]) !includes;
181 time_travel (new status)
184 type obj = string * Obj.t
186 class dumpable_status =
188 val dump = ([] : obj list)
190 method set_dump v = {< dump = v >}
193 module type SerializerType =
197 type 'a register_type =
199 refresh_uri_in_universe:(NCic.universe -> NCic.universe) ->
200 refresh_uri_in_term:(NCic.term -> NCic.term) ->
201 refresh_uri_in_reference:(NReference.reference -> NReference.reference) ->
202 dumpable_status -> dumpable_status
204 val register: < run: 'a. string -> 'a register_type -> ('a -> obj) >
205 val serialize: baseuri:NUri.uri -> obj list -> unit
206 (* the obj is the "include" command to be added to the dump list *)
207 val require: baseuri:NUri.uri -> dumpable_status -> dumpable_status * obj
210 module Serializer(D: sig type dumpable_status end) =
212 type dumpable_status = D.dumpable_status
213 type 'a register_type =
215 refresh_uri_in_universe:(NCic.universe -> NCic.universe) ->
216 refresh_uri_in_term:(NCic.term -> NCic.term) ->
217 refresh_uri_in_reference:(NReference.reference -> NReference.reference) ->
218 dumpable_status -> dumpable_status
220 let require1 = ref (fun _ -> assert false) (* unknown data*)
221 let already_registered = ref []
225 method run : 'a. string -> 'a register_type -> ('a -> obj)
227 assert (not (List.mem tag !already_registered));
228 already_registered := tag :: !already_registered;
229 let old_require1 = !require1 in
231 (fun ((tag',data) as x) ->
233 require (Obj.magic data) ~refresh_uri_in_universe ~refresh_uri_in_term
234 ~refresh_uri_in_reference
237 (fun x -> tag,Obj.repr x)
240 let serialize = serialize
242 let require2 ~baseuri status =
244 includes := baseuri::!includes;
245 let dump = require0 ~baseuri in
246 List.fold_right !require1 dump status
249 raise (IncludedFileNotCompiled(path_of_baseuri baseuri,NUri.string_of_uri baseuri))
252 let aux baseuri ~refresh_uri_in_universe ~refresh_uri_in_term
253 ~refresh_uri_in_reference =
254 (* memorizzo baseuri in una tabella; *)
257 register#run "include" aux
259 let require ~baseuri status =
260 let status = require2 ~baseuri status in
261 status,record_include baseuri
265 let decompile ~baseuri =
266 let baseuris = get_deps baseuri in
267 List.iter (fun baseuri ->
269 HExtlib.safe_remove (path_of_baseuri baseuri);
270 let basepath = path_of_baseuri ~no_suffix:true baseuri in
272 let od = Unix.opendir basepath in
275 let name = Unix.readdir od in
276 if name <> "." && name <> ".." then aux (name::names) else aux names
278 End_of_file -> names in
279 let names = List.map (fun name -> basepath ^ "/" ^ name) (aux []) in
281 List.iter Unix.unlink names;
282 HExtlib.rmdir_descend basepath;
285 (fun (_,_,NReference.Ref (nuri,_)) ->
286 Filename.dirname (NUri.string_of_uri nuri) <> NUri.string_of_uri baseuri
287 ) (get_global_aliases ()))
289 Unix.Unix_error _ -> () (* raised by Unix.opendir, we hope :-) *)
293 LibraryClean.set_decompile_cb
294 (fun ~baseuri -> decompile ~baseuri:(NUri.uri_of_string baseuri));;
297 let obj = require0 ~baseuri:uri in
298 refresh_uri_in_obj obj
304 (fun (_,name',nref) -> if name'=name then Some nref else None)
305 (!local_aliases @ get_global_aliases ())
307 Not_found -> raise (NCicEnvironment.ObjectNotFound (lazy name))
312 (fun (uri',_,nref) ->
313 if NUri.eq uri' uri then Some nref else None) !local_aliases
316 let add_obj status ((u,_,_,_,_) as obj) =
317 NCicEnvironment.check_and_add_obj obj;
318 storage := (`Obj (u,obj))::!storage;
319 let _,height,_,_,obj = obj in
322 NCic.Constant (_,name,None,_,_) ->
323 [u,name,NReference.reference_of_spec u NReference.Decl]
324 | NCic.Constant (_,name,Some _,_,_) ->
325 [u,name,NReference.reference_of_spec u (NReference.Def height)]
326 | NCic.Fixpoint (is_ind,fl,_) ->
328 (fun (_,name,recno,_,_) i ->
330 u,name,NReference.reference_of_spec u(NReference.Fix(i,recno,height))
332 u,name,NReference.reference_of_spec u (NReference.CoFix i)) fl
333 | NCic.Inductive (inductive,leftno,il,_) ->
336 (fun (_,iname,_,cl) i ->
340 NReference.reference_of_spec u (NReference.Con (i,j+1,leftno))
343 NReference.reference_of_spec u
344 (NReference.Ind (inductive,i,leftno))]
347 local_aliases := references @ !local_aliases;
348 status#set_timestamp (!storage,!local_aliases,!cache,!includes)
351 let add_constraint status u1 u2 =
352 NCicEnvironment.add_lt_constraint u1 u2;
353 storage := (`Constr (u1,u2)) :: !storage;
354 status#set_timestamp (!storage,!local_aliases,!cache,!includes)
361 (function `Obj (u,o) -> Some (u,o) | _ -> None )
366 try NUri.UriMap.find u !cache
368 raise (NCicEnvironment.ObjectNotFound
369 (lazy (NUri.string_of_uri u)))
372 let clear_cache () = cache := NUri.UriMap.empty;;
374 NCicEnvironment.set_get_obj get_obj;;
375 NCicPp.set_get_obj get_obj;;