1 (* Copyright (C) 2004-2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
28 exception AlreadyDefined of UriManager.uri
30 let auxiliary_lemmas_hashtbl = UriManager.UriHashtbl.create 29
32 (* uri |--> (derived_coercions_in_the_coercion_DB, derived_coercions_in_lib)
34 * in case of remove_coercion uri, the first component is removed from the
35 * coercion DB, while the second is passed to remove_obj (and is not [] only if
36 * add_coercion is called with add_composites
38 let coercion_hashtbl = UriManager.UriHashtbl.create 3
41 let innertypesuri = UriManager.innertypesuri_of_uri uri in
42 let bodyuri = UriManager.bodyuri_of_uri uri in
43 let univgraphuri = UriManager.univgraphuri_of_uri uri in
44 innertypesuri,bodyuri,univgraphuri
46 let paths_and_uris_of_obj uri =
47 let resolved = Http_getter.filename' ~local:true ~writable:true uri in
48 let basepath = Filename.dirname resolved in
49 let innertypesuri, bodyuri, univgraphuri = uris_of_obj uri in
50 let innertypesfilename=(UriManager.nameext_of_uri innertypesuri)^".xml.gz"in
51 let innertypespath = basepath ^ "/" ^ innertypesfilename in
52 let xmlfilename = (UriManager.nameext_of_uri uri) ^ ".xml.gz" in
53 let xmlpath = basepath ^ "/" ^ xmlfilename in
54 let xmlbodyfilename = (UriManager.nameext_of_uri uri) ^ ".body.xml.gz" in
55 let xmlbodypath = basepath ^ "/" ^ xmlbodyfilename in
56 let xmlunivgraphfilename=(UriManager.nameext_of_uri univgraphuri)^".xml.gz"in
57 let xmlunivgraphpath = basepath ^ "/" ^ xmlunivgraphfilename in
58 xmlpath, xmlbodypath, innertypespath, bodyuri, innertypesuri,
59 xmlunivgraphpath, univgraphuri
61 let save_object_to_disk uri obj ugraph univlist =
63 if not (Helm_registry.get_opt_default
64 Helm_registry.bool "matita.nodisk" ~default:false)
68 let ensure_path_exists path =
69 let dir = Filename.dirname path in
72 (* generate annobj, ids_to_inner_sorts and ids_to_inner_types *)
73 let annobj, innertypes =
74 if Helm_registry.get_bool "matita.system" then
75 let annobj, _, _, ids_to_inner_sorts, ids_to_inner_types, _, _ =
76 Cic2acic.acic_object_of_cic_object obj
79 Cic2Xml.print_inner_types
80 uri ~ids_to_inner_sorts ~ids_to_inner_types ~ask_dtd_to_the_getter:false
82 annobj, Some innertypesxml
84 let annobj = Cic2acic.plain_acic_object_of_cic_object obj in
90 uri ?ids_to_inner_sorts:None ~ask_dtd_to_the_getter:false annobj
92 let xmlpath, xmlbodypath, innertypespath, bodyuri, innertypesuri,
93 xmlunivgraphpath, univgraphuri =
94 paths_and_uris_of_obj uri
96 write (List.iter HExtlib.mkdir) (List.map Filename.dirname [xmlpath]);
97 (* now write to disk *)
98 write ensure_path_exists xmlpath;
99 write (Xml.pp ~gzip:true xml) (Some xmlpath);
100 write (CicUniv.write_xml_of_ugraph xmlunivgraphpath ugraph) univlist;
101 (* we return a list of uri,path we registered/created *)
103 (univgraphuri,xmlunivgraphpath) ::
104 (* now the optional inner types, both write and register *)
105 (match innertypes with
107 | Some innertypesxml ->
108 write ensure_path_exists innertypespath;
109 write (Xml.pp ~gzip:true innertypesxml) (Some innertypespath);
110 [innertypesuri, innertypespath]
112 (* now the optional body, both write and register *)
113 (match bodyxml,bodyuri with
115 | Some bodyxml,Some bodyuri->
116 write ensure_path_exists xmlbodypath;
117 write (Xml.pp ~gzip:true bodyxml) (Some xmlbodypath);
118 [bodyuri, xmlbodypath]
123 let profiler = HExtlib.profile "add_obj.typecheck_obj" in
124 fun uri obj -> profiler.HExtlib.profile (CicTypeChecker.typecheck_obj uri) obj
127 let profiler = HExtlib.profile "add_obj.index_obj" in
129 profiler.HExtlib.profile (fun uri -> MetadataDb.index_obj ~dbd ~uri) uri
131 let add_single_obj uri obj refinement_toolkit =
132 let module RT = RefinementTool in
134 if (*List.mem `Generated (CicUtil.attributes_of_obj obj) &&*)
135 not (CoercDb.is_a_coercion' (Cic.Const (uri, [])))
137 refinement_toolkit.RT.pack_coercion_obj obj
141 let dbd = LibraryDb.instance () in
142 if CicEnvironment.in_library uri then
143 raise (AlreadyDefined uri)
145 (*CicUniv.reset_spent_time ();
146 let before = Unix.gettimeofday () in*)
147 typecheck_obj uri obj; (* 1 *)
148 (*let after = Unix.gettimeofday () in
149 let univ_time = CicUniv.get_spent_time () in
150 let total_time = after -. before in
152 (Printf.sprintf "QED: %%univ = %2.5f, total = %2.5f, univ = %2.5f, %s\n"
153 (univ_time *. 100. /. total_time) (total_time) (univ_time)
154 (UriManager.name_of_uri uri));*)
155 let _, ugraph, univlist =
156 CicEnvironment.get_cooked_obj_with_univlist CicUniv.empty_ugraph uri in
158 index_obj ~dbd ~uri; (* 2 must be in the env *)
161 let new_stuff = save_object_to_disk uri obj ugraph univlist in
164 (Printf.sprintf "%s defined" (UriManager.string_of_uri uri))
166 List.iter HExtlib.safe_remove (List.map snd new_stuff); (* -3 *)
169 ignore(LibraryDb.remove_uri uri); (* -2 *)
172 CicEnvironment.remove_obj uri; (* -1 *)
176 let remove_single_obj uri =
177 let derived_uris_of_uri uri =
178 let innertypesuri, bodyuri, univgraphuri = uris_of_obj uri in
179 innertypesuri::univgraphuri::(match bodyuri with None -> [] | Some u -> [u])
182 if UriManager.uri_is_ind uri then LibraryDb.xpointers_of_ind uri else [uri]
184 let files_to_remove = uri :: derived_uris_of_uri uri in
188 let file = Http_getter.resolve' ~local:true ~writable:true uri in
189 HExtlib.safe_remove file;
190 HExtlib.rmdir_descend (Filename.dirname file)
191 with Http_getter_types.Key_not_found _ -> ());
195 ignore (LibraryDb.remove_uri uri);
196 (*CoercGraph.remove_coercion uri;*)
198 CicEnvironment.remove_obj uri
200 (*** GENERATION OF AUXILIARY LEMMAS ***)
202 let generate_elimination_principles uri refinement_toolkit =
207 let uri,obj = CicElim.elim_of ~sort uri i in
208 add_single_obj uri obj refinement_toolkit;
210 with CicElim.Can_t_eliminate -> ()
214 elim [ Cic.Prop; Cic.Set; (Cic.Type (CicUniv.fresh ())) ];
216 List.iter remove_single_obj !uris;
219 let (obj, univ) = (CicEnvironment.get_obj CicUniv.empty_ugraph uri) in
221 | Cic.InductiveDefinition (indTypes, _, _, _) ->
222 let counter = ref 0 in
223 List.iter (fun _ -> elim !counter; counter := !counter+1) indTypes;
226 failwith (Printf.sprintf "not an inductive definition (%s)"
227 (UriManager.string_of_uri uri))
229 (* COERCIONS ***********************************************************)
231 let remove_all_coercions () =
232 UriManager.UriHashtbl.clear coercion_hashtbl;
233 CoercDb.remove_coercion (fun (_,_,_,_) -> true)
235 let add_coercion ~add_composites refinement_toolkit uri arity saturations
239 let coer = CicUtil.term_of_uri uri in
240 CicTypeChecker.type_of_aux' [] [] coer CicUniv.empty_ugraph
242 (* we have to get the source and the tgt type uri
243 * in Coq syntax we have already their names, but
244 * since we don't support Funclass and similar I think
245 * all the coercion should be of the form
247 * So we should be able to extract them from the coercion type
249 * Currently only (_:T1)T2 is supported.
250 * should we saturate it with metas in case we insert it?
254 let rec aux = function
255 | Cic.Prod( _, src, tgt) -> src::aux tgt
260 let src_carr, tgt_carr =
261 let get_classes arity saturations l =
262 (* this is the ackerman's function revisited *)
263 let rec aux = function
264 0,0,None,tgt::src::_ -> src,Some (`Class tgt)
265 | 0,0,target,src::_ -> src,target
266 | 0,saturations,None,tgt::tl -> aux (0,saturations,Some (`Class tgt),tl)
267 | 0,saturations,target,_::tl -> aux (0,saturations - 1,target,tl)
268 | arity,saturations,None,_::tl ->
269 aux (arity, saturations, Some `Funclass, tl)
270 | arity,saturations,target,_::tl ->
271 aux (arity - 1, saturations, target, tl)
274 aux (arity,saturations,None,List.rev l)
276 let types = spine2list coer_ty in
277 let src,tgt = get_classes arity saturations types in
278 CoercDb.coerc_carr_of_term (CicReduction.whd ~delta:false [] src),
281 | Some `Funclass -> CoercDb.Fun arity
282 | Some (`Class tgt) ->
283 CoercDb.coerc_carr_of_term (CicReduction.whd ~delta:false [] tgt)
285 let already_in_obj src_carr tgt_carr uri obj =
292 | Cic.Constant (_, Some bo, _, _, _) -> bo
295 CoercDb.eq_carr s src_carr &&
296 CoercDb.eq_carr t tgt_carr &&
297 if fst (CicReduction.are_convertible [] (CicUtil.term_of_uri u) bo
298 CicUniv.oblivion_ugraph)
302 UriManager.string_of_uri u ^ " and " ^ UriManager.string_of_uri
303 uri^" are not convertible, but are between the same nodes.\n"^
304 "From now on unification can fail randomly.");
309 if not add_composites then
310 (CoercDb.add_coercion (src_carr, tgt_carr, uri, saturations);[])
313 CicCoercion.close_coercion_graph src_carr tgt_carr uri saturations
317 List.filter (fun (s,t,u,saturations,obj) -> not(already_in_obj s t u obj))
320 let composite_uris = List.map (fun (_,_,uri,_,_) -> uri) new_coercions in
323 (fun (src,tgt,uri,saturations,_) ->
324 CoercDb.add_coercion (src,tgt,uri,saturations))
326 CoercDb.add_coercion (src_carr, tgt_carr, uri, saturations);
327 (* add the composites obj and they eventual lemmas *)
329 if add_composites then
331 (fun acc (_,tgt,uri,saturations,obj) ->
332 add_single_obj uri obj refinement_toolkit;
333 let arity = match tgt with CoercDb.Fun n -> n | _ -> 0 in
334 (uri,arity,saturations)::acc)
339 (* store that composite_uris are related to uri. the first component is
340 * the stuff in the DB while the second is stuff for remove_obj *)
342 prerr_endline ("adding: " ^
343 string_of_bool add_composites ^ UriManager.string_of_uri uri);
344 List.iter (fun u -> prerr_endline (UriManager.string_of_uri u))
347 UriManager.UriHashtbl.add coercion_hashtbl uri
348 (composite_uris,if add_composites then composite_uris else []);
350 prerr_endline ("lemmas:");
351 List.iter (fun u -> prerr_endline (UriManager.string_of_uri u))
353 prerr_endline ("lemmas END");*)
357 let remove_coercion uri =
359 let (composites_in_db, composites_in_lib) =
360 UriManager.UriHashtbl.find coercion_hashtbl uri
362 (*prerr_endline ("removing: " ^UriManager.string_of_uri uri);
363 List.iter (fun u -> prerr_endline (UriManager.string_of_uri u))
365 UriManager.UriHashtbl.remove coercion_hashtbl uri;
366 CoercDb.remove_coercion (fun (_,_,u,_) -> UriManager.eq uri u);
367 (* remove from the DB *)
369 (fun u -> CoercDb.remove_coercion (fun (_,_,u1,_) -> UriManager.eq u u1))
371 (* remove composites from the lib *)
372 List.iter remove_single_obj composites_in_lib
374 Not_found -> () (* mhh..... *)
377 let generate_projections refinement_toolkit uri fields =
380 CicRecord.projections_of uri
381 (List.map (fun (x,_,_) -> x) fields)
385 (fun (uri, name, bo) (_name, coercion, arity) ->
386 let saturations = 0 in
389 CicTypeChecker.type_of_aux' [] [] bo CicUniv.empty_ugraph in
390 let attrs = [`Class `Projection; `Generated] in
391 let obj = Cic.Constant (name,Some bo,ty,[],attrs) in
392 add_single_obj uri obj refinement_toolkit;
396 (*prerr_endline ("composite for " ^ UriManager.string_of_uri uri);*)
397 (*CSC: I think there is a bug here. The composite coercions
398 are not remembered in the .moo file. Thus they are re-generated
399 every time. Right? *)
401 add_coercion ~add_composites:true refinement_toolkit uri arity
402 saturations (UriManager.buri_of_uri uri)
404 (*prerr_endline ("are: ");
405 List.iter (fun u -> prerr_endline (UriManager.string_of_uri u)) x;
408 (*CSC: I throw the arity away. See comment above *)
409 List.map (fun u,_,_ -> u) x
414 uris := uri :: composites @ !uris
416 CicTypeChecker.TypeCheckerFailure s ->
418 ("Unable to create projection " ^ name ^ " cause: " ^ Lazy.force s);
419 | CicEnvironment.Object_not_found uri ->
420 let depend = UriManager.name_of_uri uri in
422 ("Unable to create projection " ^ name ^ " because it requires " ^
424 ) projections fields;
427 List.iter remove_single_obj !uris;
430 let build_inversion_principle = ref (fun a b -> assert false);;
432 let generate_inversion refinement_toolkit uri obj =
434 (fun (ind_uri,ind_obj) ->
435 add_single_obj ind_uri ind_obj refinement_toolkit;ind_uri)
436 (!build_inversion_principle uri obj)
439 generate_sibling_mutual_definitions refinement_toolkit uri attrs name_to_avoid
445 (fun (name,idx,ty,bo) (n,uris) ->
446 if name = name_to_avoid then
450 UriManager.uri_of_string
451 (UriManager.buri_of_uri uri ^ "/" ^ name ^ ".con") in
452 let bo = Cic.Fix (n,funs) in
453 let obj = Cic.Constant (name,Some bo,ty,[],attrs) in
454 add_single_obj uri obj refinement_toolkit;
457 | Cic.CoFix (_,funs) ->
460 (fun (name,ty,bo) (n,uris) ->
461 if name = name_to_avoid then
465 UriManager.uri_of_string
466 (UriManager.buri_of_uri uri ^ "/" ^ name ^ ".con") in
467 let bo = Cic.CoFix (n,funs) in
468 let obj = Cic.Constant (name,Some bo,ty,[],attrs) in
469 add_single_obj uri obj refinement_toolkit;
474 let add_obj refinement_toolkit uri obj =
475 add_single_obj uri obj refinement_toolkit;
477 let not_debug = not (Helm_registry.get_bool "matita.debug") in
481 | Cic.Constant (name,Some bo,_,_,attrs) when
482 List.mem (`Flavour `MutualDefinition) attrs ->
485 generate_sibling_mutual_definitions refinement_toolkit uri attrs
487 | Cic.Constant _ -> ()
488 | Cic.InductiveDefinition (_,_,_,attrs) ->
490 generate_elimination_principles uri refinement_toolkit;
491 uris := !uris @ generate_inversion refinement_toolkit uri obj;
492 let rec get_record_attrs =
495 | (`Class (`Record fields))::_ -> Some fields
496 | _::tl -> get_record_attrs tl
498 (match get_record_attrs attrs with
499 | None -> () (* not a record *)
502 (generate_projections refinement_toolkit uri fields))
504 | Cic.Variable _ -> assert false
506 UriManager.UriHashtbl.add auxiliary_lemmas_hashtbl uri !uris;
509 | exn when not_debug ->
510 List.iter remove_single_obj !uris;
516 let res = UriManager.UriHashtbl.find auxiliary_lemmas_hashtbl uri in
517 UriManager.UriHashtbl.remove auxiliary_lemmas_hashtbl uri;
520 Not_found -> [] (*assert false*)
522 List.iter remove_single_obj (uri::uris)