1 (* Copyright (C) 2004, 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/
30 let nonvar uri = not (UriManager.uri_is_var uri)
32 module Constr = MetadataConstraints
34 exception Goal_is_not_an_equation
37 let debug_print s = if debug then prerr_endline (Lazy.force s)
39 let ( ** ) x y = int_of_float ((float_of_int x) ** (float_of_int y))
41 let signature_of_hypothesis context metasenv =
44 (fun hyp (set,current_ctx) ->
46 | None -> set, hyp::current_ctx
47 | Some (_, Cic.Decl t) ->
48 Constr.UriManagerSet.union set (Constr.constants_of t),
50 | Some (_, Cic.Def (t, _)) ->
53 CicTypeChecker.type_of_aux'
54 metasenv current_ctx t CicUniv.empty_ugraph
57 CicTypeChecker.type_of_aux'
58 metasenv current_ctx ty CicUniv.empty_ugraph
60 let set = Constr.UriManagerSet.union set(Constr.constants_of ty)in
62 | Cic.Sort Cic.Prop -> set, hyp::current_ctx
63 | _ -> Constr.UriManagerSet.union set (Constr.constants_of t),
66 | CicTypeChecker.TypeCheckerFailure _ -> set, hyp::current_ctx)
67 context (Constr.UriManagerSet.empty,[])
72 let intersect uris siguris =
73 let set1 = List.fold_right Constr.UriManagerSet.add uris Constr.UriManagerSet.empty in
75 List.fold_right Constr.UriManagerSet.add siguris Constr.UriManagerSet.empty
77 let inter = Constr.UriManagerSet.inter set1 set2 in
78 List.filter (fun s -> Constr.UriManagerSet.mem s inter) uris
82 let profiler = CicUtil.profile "at_most" in
83 fun ~dbd ~where uri -> profiler.profile (Constr.at_most ~dbd ~where) uri
86 let profiler = CicUtil.profile "sigmatch" in
87 fun ~dbd ~facts ~where signature ->
88 profiler.profile (MetadataConstraints.sigmatch ~dbd ~facts ~where) signature
90 let at_most = Constr.at_most
91 let sigmatch = MetadataConstraints.sigmatch
93 let filter_uris_forward ~dbd (main, constants) uris =
97 | Some (main, types) -> main :: types
100 List.fold_right Constr.UriManagerSet.add main_uris constants
102 List.filter (at_most ~dbd ~where:`Statement full_signature) uris
104 let filter_uris_backward ~dbd ~facts signature uris =
107 (sigmatch ~dbd ~facts ~where:`Statement signature)
109 intersect uris siguris
111 let compare_goal_list proof goal1 goal2 =
112 let _,metasenv,_,_ = proof in
113 let (_, ey1, ty1) = CicUtil.lookup_meta goal1 metasenv in
114 let (_, ey2, ty2) = CicUtil.lookup_meta goal2 metasenv in
116 CicTypeChecker.type_of_aux' metasenv ey1 ty1 CicUniv.empty_ugraph
119 CicTypeChecker.type_of_aux' metasenv ey2 ty2 CicUniv.empty_ugraph
123 CicReduction.are_convertible
124 ey1 (Cic.Sort Cic.Prop) ty_sort1 CicUniv.empty_ugraph
131 CicReduction.are_convertible
132 ey2 (Cic.Sort Cic.Prop) ty_sort2 CicUniv.empty_ugraph
139 (* experimental_hint is a version of hint for experimental
140 purposes. It uses auto_tac_verbose instead of auto tac.
141 Auto_tac verbose also returns a substitution - for the moment
142 as a function from cic to cic, to be changed into an association
143 list in the future -. This substitution is used to build a
144 hash table of the inspected goals with their associated proofs.
145 The cose is a cut and paste of the previous one: at the end
146 of the experimentation we shall make a choice. *)
148 let close_with_types s metasenv context =
149 Constr.UriManagerSet.fold
151 let t = CicUtil.term_of_uri e in
153 CicTypeChecker.type_of_aux' metasenv context t CicUniv.empty_ugraph
155 Constr.UriManagerSet.union bag (Constr.constants_of ty))
158 let close_with_constructors s metasenv context =
159 Constr.UriManagerSet.fold
161 let t = CicUtil.term_of_uri e in
164 | Cic.MutConstruct (uri,_,_,_) ->
165 (match fst (CicEnvironment.get_obj CicUniv.empty_ugraph uri) with
166 Cic.InductiveDefinition(tl,_,_,_) ->
169 (fun (i,s) (_,_,_,cl) ->
173 let curi = UriManager.uri_of_uriref uri i (Some j) in
174 j+1,Constr.UriManagerSet.add curi s) (1,s) cl in
181 let apply_tac_verbose =
182 let profiler = CicUtil.profile "apply_tac_verbose" in
183 fun ~term status -> profiler.profile (PrimitiveTactics.apply_tac_verbose ~term) status
186 let profiler = CicUtil.profile "sigmatch" in
187 fun ~dbd ~facts ?(where=`Conclusion) signature -> profiler.profile (Constr.sigmatch ~dbd ~facts ~where) signature
190 let profiler = CicUtil.profile "cmatch'" in
191 fun ~dbd ~facts signature -> profiler.profile (Constr.cmatch' ~dbd ~facts) signature
193 let apply_tac_verbose = PrimitiveTactics.apply_tac_verbose
194 let cmatch' = Constr.cmatch'
198 try CicTypeChecker.type_of_aux' [] []
199 (CicUtil.term_of_uri u) CicUniv.empty_ugraph
200 with CicTypeChecker.TypeCheckerFailure _ -> assert false
202 let rec check_last_pi = function
203 | Cic.Prod (_,_,tgt) -> check_last_pi tgt
204 | Cic.Sort Cic.Prop -> true
210 let only constants uri =
211 prerr_endline (UriManager.string_of_uri uri);
212 let t = CicUtil.term_of_uri uri in (* FIXME: write ty_of_term *)
213 let ty,_ = CicTypeChecker.type_of_aux' [] [] t CicUniv.empty_ugraph in
214 let consts = Constr.constants_of ty in
215 Constr.UriManagerSet.subset consts constants
218 let universe_of_goals ~(dbd:HMysql.dbd) proof goals =
219 let (_, metasenv, _, _) = proof in
220 let add_uris_for acc goal =
221 let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
222 let main, sig_constants = Constr.signature_of ty in
223 let set = signature_of_hypothesis context metasenv in
228 List.fold_right Constr.UriManagerSet.add (main::l) set in
229 let set = Constr.UriManagerSet.union set sig_constants in
230 let all_constants_closed = close_with_types set metasenv context in
231 Constr.UriManagerSet.union all_constants_closed acc
233 let all_constants_closed =
234 List.fold_left add_uris_for Constr.UriManagerSet.empty goals in
235 (* we split predicates from the rest *)
236 let predicates, rest =
237 Constr.UriManagerSet.partition is_predicate all_constants_closed
240 Constr.UriManagerSet.fold
243 sigmatch ~dbd ~facts:false ~where:`Statement
244 (Some (u,[]),all_constants_closed)
251 sigmatch ~dbd ~facts:false ~where:`Statement (None,all_constants_closed)
254 let uris = List.filter nonvar (List.map snd uris) in
255 let uris = List.filter Hashtbl_equiv.not_a_duplicate uris in
256 let uris = List.filter (only all_constants_closed) uris in
260 let filter_out_predicate set ctx menv =
261 Constr.UriManagerSet.filter (fun u -> not (is_predicate u)) set
264 let equations_for_goal ~(dbd:HMysql.dbd) ?signature ((proof, goal) as _status) =
265 (* let to_string set =
268 (Constr.UriManagerSet.fold
269 (fun u l -> (UriManager.string_of_uri u)::l) set []))
272 let (_, metasenv, _, _) = proof in
273 let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
274 let main, sig_constants =
276 | None -> Constr.signature_of ty
279 (* Printf.printf "\nsig_constants: %s\n\n" (to_string sig_constants); *)
280 (* match main with *)
281 (* None -> raise Goal_is_not_an_equation *)
282 (* | Some (m,l) -> *)
285 match LibraryObjects.eq_URI () with
289 (UriManager.uri_of_string
290 (UriManager.string_of_uri s ^ "#xpointer(1/1)"))
292 match eq_URI,main with
293 | Some eq_URI, Some (m, l) when UriManager.eq m eq_URI -> m::l
296 (*Printf.printf "\nSome (m, l): %s, [%s]\n\n"
297 (UriManager.string_of_uri (List.hd l))
298 (String.concat "; " (List.map UriManager.string_of_uri (List.tl l)));
300 (* if m == UriManager.uri_of_string HelmLibraryObjects.Logic.eq_XURI then ( *)
301 let set = signature_of_hypothesis context metasenv in
302 (* Printf.printf "\nsignature_of_hypothesis: %s\n\n" (to_string set); *)
303 let set = Constr.UriManagerSet.union set sig_constants in
304 let set = filter_out_predicate set context metasenv in
305 let set = close_with_types set metasenv context in
306 (* Printf.printf "\ndopo close_with_types: %s\n\n" (to_string set); *)
307 let set = close_with_constructors set metasenv context in
308 (* Printf.printf "\ndopo close_with_constructors: %s\n\n" (to_string set); *)
309 let set = List.fold_right Constr.UriManagerSet.remove l set in
311 sigmatch ~dbd ~facts:false ~where:`Statement (main,set) in
312 let uris = List.filter nonvar (List.map snd uris) in
313 let uris = List.filter Hashtbl_equiv.not_a_duplicate uris in
316 (* else raise Goal_is_not_an_equation *)
318 let experimental_hint
319 ~(dbd:HMysql.dbd) ?(facts=false) ?signature ((proof, goal) as status) =
320 let (_, metasenv, _, _) = proof in
321 let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
322 let (uris, (main, sig_constants)) =
325 (sigmatch ~dbd ~facts signature, signature)
327 (cmatch' ~dbd ~facts ty, Constr.signature_of ty)
329 let uris = List.filter nonvar (List.map snd uris) in
330 let uris = List.filter Hashtbl_equiv.not_a_duplicate uris in
331 let types_constants =
333 | None -> Constr.UriManagerSet.empty
334 | Some (main, types) ->
335 List.fold_right Constr.UriManagerSet.add (main :: types)
336 Constr.UriManagerSet.empty
340 Constr.UriManagerSet.union
341 (signature_of_hypothesis context metasenv)
346 | None -> Constr.UriManagerSet.empty
349 CicTypeChecker.type_of_aux'
350 metasenv context (CicUtil.term_of_uri main) CicUniv.empty_ugraph
352 Constr.constants_of ty
354 Constr.UriManagerSet.union main hyp_and_sug
356 (* Constr.UriManagerSet.iter debug_print hyp_constants; *)
357 let all_constants_closed = close_with_types all_constants metasenv context in
358 let other_constants =
359 Constr.UriManagerSet.diff all_constants_closed types_constants
361 debug_print (lazy "all_constants_closed");
362 if debug then Constr.UriManagerSet.iter (fun s -> debug_print (lazy (UriManager.string_of_uri s))) all_constants_closed;
363 debug_print (lazy "other_constants");
364 if debug then Constr.UriManagerSet.iter (fun s -> debug_print (lazy (UriManager.string_of_uri s))) other_constants;
366 let pow = 2 ** (Constr.UriManagerSet.cardinal other_constants) in
367 if ((List.length uris < pow) or (pow <= 0))
369 debug_print (lazy "MetadataQuery: large sig, falling back to old method");
370 filter_uris_forward ~dbd (main, other_constants) uris
372 filter_uris_backward ~dbd ~facts (main, other_constants) uris
374 let rec aux = function
379 let (subst,(proof, goal_list)) =
380 (* debug_print (lazy ("STO APPLICANDO" ^ uri)); *)
382 ~term:(CicUtil.term_of_uri uri)
386 List.stable_sort (compare_goal_list proof) goal_list
388 Some (uri, (subst,(proof, goal_list)))
389 with ProofEngineTypes.Fail _ -> None
393 | Some status' -> status' :: aux tl)
396 (fun (_,(_, (_, goals1))) (_,(_, (_, goals2))) ->
397 Pervasives.compare (List.length goals1) (List.length goals2))
400 let new_experimental_hint
401 ~(dbd:HMysql.dbd) ?(facts=false) ?signature ~universe
402 ((proof, goal) as status)
404 let (_, metasenv, _, _) = proof in
405 let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
406 let (uris, (main, sig_constants)) =
409 (sigmatch ~dbd ~facts signature, signature)
411 (cmatch' ~dbd ~facts ty, Constr.signature_of ty) in
414 (fun res u -> Constr.UriManagerSet.add u res)
415 Constr.UriManagerSet.empty universe in
418 (fun res (_,u) -> Constr.UriManagerSet.add u res)
419 Constr.UriManagerSet.empty uris in
420 let uris = Constr.UriManagerSet.inter uris universe in
421 let uris = Constr.UriManagerSet.elements uris in
422 let rec aux = function
427 let (subst,(proof, goal_list)) =
428 (* debug_print (lazy ("STO APPLICANDO" ^ uri)); *)
430 ~term:(CicUtil.term_of_uri uri)
434 List.stable_sort (compare_goal_list proof) goal_list
436 Some (uri, (subst,(proof, goal_list)))
437 with ProofEngineTypes.Fail _ -> None
441 | Some status' -> status' :: aux tl)
444 (fun (_,(_, (_, goals1))) (_,(_, (_, goals2))) ->
445 Pervasives.compare (List.length goals1) (List.length goals2))