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 ng_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 = require_path (ng_path_of_baseuri baseuri)
75 let db_path () = Helm_registry.get "matita.basedir" ^ "/ng_db.ng";;
78 [ `Obj of NUri.uri * NCic.obj
79 | `Constr of NCic.universe * NCic.universe] list *
80 (NUri.uri * string * NReference.reference) list *
81 NCic.obj NUri.UriMap.t *
85 let time0 = [],[],NUri.UriMap.empty,[];;
86 let storage = ref [];;
87 let local_aliases = ref [];;
88 let cache = ref NUri.UriMap.empty;;
89 let includes = ref [];;
91 let get_already_included () = !includes;;
93 let load_db,set_global_aliases,get_global_aliases,add_deps,get_deps,remove_deps=
94 let global_aliases = ref [] in
95 let rev_includes_map = ref NUri.UriMap.empty in
97 let ch = open_out (db_path ()) in
98 Marshal.to_channel ch (magic,(!global_aliases,!rev_includes_map)) [];
101 HExtlib.mkdir (Helm_registry.get "matita.basedir");
103 let ga,im = require_path (db_path ()) in
106 (fun (uri,name,NReference.Ref (uri2,spec)) ->
107 refresh_uri uri,name,NReference.reference_of_spec (refresh_uri uri2) spec
111 (fun u l im -> NUri.UriMap.add (refresh_uri u) (List.map refresh_uri l) im
112 ) im NUri.UriMap.empty
114 global_aliases := ga;
115 rev_includes_map := im
119 let get_deps_one_step u =
120 try NUri.UriMap.find u !rev_includes_map with Not_found -> [] in
125 if List.mem he res then
128 aux (he::res) (get_deps_one_step he @ tl)
132 rev_includes_map := NUri.UriMap.remove u !rev_includes_map;
135 (fun l -> List.filter (fun uri -> not (NUri.eq u uri)) l) !rev_includes_map;
139 (fun ga -> global_aliases := ga; store_db ()),
140 (fun () -> !global_aliases),
142 rev_includes_map := NUri.UriMap.add u (l @ get_deps u) !rev_includes_map;
152 val timestamp = (time0 : timestamp)
153 method timestamp = timestamp
154 method set_timestamp v = {< timestamp = v >}
157 let time_travel status =
158 let sto,ali,cac,inc = status#timestamp in
159 let diff_len = List.length !storage - List.length sto in
160 let to_be_deleted,_ = HExtlib.split_nth diff_len !storage in
161 if List.length to_be_deleted > 0 then
162 NCicEnvironment.invalidate_item (HExtlib.list_last to_be_deleted);
163 storage := sto; local_aliases := ali; cache := cac; includes := inc
166 let serialize ~baseuri ~dependencies dump =
167 let ch = open_out (ng_path_of_baseuri baseuri) in
168 Marshal.to_channel ch (magic,(dependencies,dump)) [];
173 let ch = open_out (ng_path_of_baseuri uri) in
174 Marshal.to_channel ch (magic,obj) [];
178 set_global_aliases (!local_aliases @ get_global_aliases ());
179 List.iter (fun u -> add_deps u [baseuri]) !includes;
180 time_travel (new status)
183 type obj = string * Obj.t
185 class dumpable_status =
187 val dump = ([] : obj list)
189 method set_dump v = {< dump = v >}
192 module type SerializerType =
196 type 'a register_type =
198 refresh_uri_in_universe:(NCic.universe -> NCic.universe) ->
199 refresh_uri_in_term:(NCic.term -> NCic.term) ->
200 refresh_uri_in_reference:(NReference.reference -> NReference.reference) ->
201 dumpable_status -> dumpable_status
203 val register: < run: 'a. string -> 'a register_type -> ('a -> obj) >
204 val serialize: baseuri:NUri.uri -> dependencies:string list -> obj list -> unit
205 (* the obj is the "include" command to be added to the dump list *)
206 val require: baseuri:NUri.uri -> dumpable_status -> dumpable_status * obj
207 val dependencies_of: baseuri:NUri.uri -> string list
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 _dependencies,dump = require0 ~baseuri in
246 List.fold_right !require1 dump status
249 raise (IncludedFileNotCompiled(ng_path_of_baseuri baseuri,NUri.string_of_uri baseuri))
251 let dependencies_of ~baseuri = fst (require0 ~baseuri)
254 let aux baseuri ~refresh_uri_in_universe ~refresh_uri_in_term
255 ~refresh_uri_in_reference =
256 (* memorizzo baseuri in una tabella; *)
259 register#run "include" aux
261 let require ~baseuri status =
262 let status = require2 ~baseuri status in
263 status,record_include baseuri
267 let decompile ~baseuri =
268 let baseuris = get_deps baseuri in
269 List.iter (fun baseuri ->
271 HExtlib.safe_remove (ng_path_of_baseuri baseuri);
272 let basepath = ng_path_of_baseuri ~no_suffix:true baseuri in
274 let od = Unix.opendir basepath in
277 let name = Unix.readdir od in
278 if name <> "." && name <> ".." then aux (name::names) else aux names
280 End_of_file -> names in
281 let names = List.map (fun name -> basepath ^ "/" ^ name) (aux []) in
283 List.iter Unix.unlink names;
284 HExtlib.rmdir_descend basepath;
287 (fun (_,_,NReference.Ref (nuri,_)) ->
288 Filename.dirname (NUri.string_of_uri nuri) <> NUri.string_of_uri baseuri
289 ) (get_global_aliases ()))
291 Unix.Unix_error _ -> () (* raised by Unix.opendir, we hope :-) *)
295 LibraryClean.set_decompile_cb
296 (fun ~baseuri -> decompile ~baseuri:(NUri.uri_of_string baseuri));;
299 let obj = require0 ~baseuri:uri in
300 refresh_uri_in_obj obj
306 (fun (_,name',nref) -> if name'=name then Some nref else None)
307 (!local_aliases @ get_global_aliases ())
309 Not_found -> raise (NCicEnvironment.ObjectNotFound (lazy name))
314 (fun (uri',_,nref) ->
315 if NUri.eq uri' uri then Some nref else None) !local_aliases
318 let add_obj status ((u,_,_,_,_) as obj) =
319 NCicEnvironment.check_and_add_obj obj;
320 storage := (`Obj (u,obj))::!storage;
321 let _,height,_,_,obj = obj in
324 NCic.Constant (_,name,None,_,_) ->
325 [u,name,NReference.reference_of_spec u NReference.Decl]
326 | NCic.Constant (_,name,Some _,_,_) ->
327 [u,name,NReference.reference_of_spec u (NReference.Def height)]
328 | NCic.Fixpoint (is_ind,fl,_) ->
330 (fun (_,name,recno,_,_) i ->
332 u,name,NReference.reference_of_spec u(NReference.Fix(i,recno,height))
334 u,name,NReference.reference_of_spec u (NReference.CoFix i)) fl
335 | NCic.Inductive (inductive,leftno,il,_) ->
338 (fun (_,iname,_,cl) i ->
342 NReference.reference_of_spec u (NReference.Con (i,j+1,leftno))
345 NReference.reference_of_spec u
346 (NReference.Ind (inductive,i,leftno))]
349 local_aliases := references @ !local_aliases;
350 status#set_timestamp (!storage,!local_aliases,!cache,!includes)
353 let add_constraint status u1 u2 =
354 NCicEnvironment.add_lt_constraint u1 u2;
355 storage := (`Constr (u1,u2)) :: !storage;
356 status#set_timestamp (!storage,!local_aliases,!cache,!includes)
363 (function `Obj (u,o) -> Some (u,o) | _ -> None )
368 try NUri.UriMap.find u !cache
370 raise (NCicEnvironment.ObjectNotFound
371 (lazy (NUri.string_of_uri u)))
374 let clear_cache () = cache := NUri.UriMap.empty;;
376 NCicEnvironment.set_get_obj get_obj;;
377 NCicPp.set_get_obj get_obj;;