1 (* Copyright (C) 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 module PEH = ProofEngineHelpers
31 (* mo file name, ma file name *)
32 exception IncludedFileNotCompiled of string * string
35 (Cic.context -> GrafiteTypes.status * Cic.term GrafiteAst.macro)
37 type 'a disambiguator_input = string * int * 'a
40 do_heavy_checks: bool ;
43 (** create a ProofEngineTypes.mk_fresh_name_type function which uses given
44 * names as long as they are available, then it fallbacks to name generation
45 * using FreshNamesGenerator module *)
47 let len = List.length names in
49 fun metasenv context name ~typ ->
50 if !count < len then begin
51 let name = match List.nth names !count with
52 | Some s -> Cic.Name s
53 | None -> Cic.Anonymous
58 FreshNamesGenerator.mk_fresh_name ~subst:[] metasenv context name ~typ
60 let rec tactic_of_ast status ast =
61 let module PET = ProofEngineTypes in
63 (* Higher order tactics *)
64 | GrafiteAst.Do (loc, n, tactic) ->
65 Tacticals.do_tactic n (tactic_of_ast status tactic)
66 | GrafiteAst.Seq (loc, tactics) -> (* tac1; tac2; ... *)
67 Tacticals.seq (List.map (tactic_of_ast status) tactics)
68 | GrafiteAst.Repeat (loc, tactic) ->
69 Tacticals.repeat_tactic (tactic_of_ast status tactic)
70 | GrafiteAst.Then (loc, tactic, tactics) -> (* tac; [ tac1 | ... ] *)
72 (tactic_of_ast status tactic)
73 (List.map (tactic_of_ast status) tactics)
74 | GrafiteAst.First (loc, tactics) ->
75 Tacticals.first (List.map (tactic_of_ast status) tactics)
76 | GrafiteAst.Try (loc, tactic) ->
77 Tacticals.try_tactic (tactic_of_ast status tactic)
78 | GrafiteAst.Solve (loc, tactics) ->
79 Tacticals.solve_tactics (List.map (tactic_of_ast status) tactics)
80 | GrafiteAst.Progress (loc, tactic) ->
81 Tacticals.progress_tactic (tactic_of_ast status tactic)
82 (* First order tactics *)
83 | GrafiteAst.Absurd (_, term) -> Tactics.absurd term
84 | GrafiteAst.Apply (_, term) -> Tactics.apply term
85 | GrafiteAst.ApplyS (_, term, params) ->
86 Tactics.applyS ~term ~params ~dbd:(LibraryDb.instance ())
87 ~universe:status.GrafiteTypes.universe
88 | GrafiteAst.Assumption _ -> Tactics.assumption
89 | GrafiteAst.AutoBatch (_,params) ->
90 Tactics.auto ~params ~dbd:(LibraryDb.instance ())
91 ~universe:status.GrafiteTypes.universe
92 | GrafiteAst.Cases (_, what, pattern, (howmany, names)) ->
93 Tactics.cases_intros ?howmany ~mk_fresh_name_callback:(namer_of names)
95 | GrafiteAst.Change (_, pattern, with_what) ->
96 Tactics.change ~pattern with_what
97 | GrafiteAst.Clear (_,id) -> Tactics.clear id
98 | GrafiteAst.ClearBody (_,id) -> Tactics.clearbody id
99 | GrafiteAst.Compose (_,t1,t2,times,(howmany, names)) ->
100 Tactics.compose times t1 t2 ?howmany
101 ~mk_fresh_name_callback:(namer_of names)
102 | GrafiteAst.Contradiction _ -> Tactics.contradiction
103 | GrafiteAst.Constructor (_, n) -> Tactics.constructor n
104 | GrafiteAst.Cut (_, ident, term) ->
105 let names = match ident with None -> [] | Some id -> [Some id] in
106 Tactics.cut ~mk_fresh_name_callback:(namer_of names) term
107 | GrafiteAst.Decompose (_, names) ->
108 let mk_fresh_name_callback = namer_of names in
109 Tactics.decompose ~mk_fresh_name_callback ()
110 | GrafiteAst.Demodulate (_, params) ->
112 ~dbd:(LibraryDb.instance ()) ~params
113 ~universe:status.GrafiteTypes.universe
114 | GrafiteAst.Destruct (_,xterms) -> Tactics.destruct xterms
115 | GrafiteAst.Elim (_, what, using, pattern, (depth, names)) ->
116 Tactics.elim_intros ?using ?depth ~mk_fresh_name_callback:(namer_of names)
118 | GrafiteAst.ElimType (_, what, using, (depth, names)) ->
119 Tactics.elim_type ?using ?depth ~mk_fresh_name_callback:(namer_of names)
121 | GrafiteAst.Exact (_, term) -> Tactics.exact term
122 | GrafiteAst.Exists _ -> Tactics.exists
123 | GrafiteAst.Fail _ -> Tactics.fail
124 | GrafiteAst.Fold (_, reduction_kind, term, pattern) ->
126 match reduction_kind with
128 PET.const_lazy_reduction
129 (CicReduction.normalize ~delta:false ~subst:[])
130 | `Simpl -> PET.const_lazy_reduction ProofEngineReduction.simpl
132 PET.const_lazy_reduction (ProofEngineReduction.unfold ?what:None)
133 | `Unfold (Some lazy_term) ->
134 (fun context metasenv ugraph ->
135 let what, metasenv, ugraph = lazy_term context metasenv ugraph in
136 ProofEngineReduction.unfold ~what, metasenv, ugraph)
138 PET.const_lazy_reduction (CicReduction.whd ~delta:false ~subst:[])
140 Tactics.fold ~reduction ~term ~pattern
141 | GrafiteAst.Fourier _ -> Tactics.fourier
142 | GrafiteAst.FwdSimpl (_, hyp, names) ->
143 Tactics.fwd_simpl ~mk_fresh_name_callback:(namer_of names)
144 ~dbd:(LibraryDb.instance ()) hyp
145 | GrafiteAst.Generalize (_,pattern,ident) ->
146 let names = match ident with None -> [] | Some id -> [Some id] in
147 Tactics.generalize ~mk_fresh_name_callback:(namer_of names) pattern
148 | GrafiteAst.IdTac _ -> Tactics.id
149 | GrafiteAst.Intros (_, (howmany, names)) ->
150 PrimitiveTactics.intros_tac ?howmany
151 ~mk_fresh_name_callback:(namer_of names) ()
152 | GrafiteAst.Inversion (_, term) ->
153 Tactics.inversion term
154 | GrafiteAst.LApply (_, linear, how_many, to_what, what, ident) ->
155 let names = match ident with None -> [] | Some id -> [Some id] in
156 Tactics.lapply ~mk_fresh_name_callback:(namer_of names)
157 ~linear ?how_many ~to_what what
158 | GrafiteAst.Left _ -> Tactics.left
159 | GrafiteAst.LetIn (loc,term,name) ->
160 Tactics.letin term ~mk_fresh_name_callback:(namer_of [Some name])
161 | GrafiteAst.Reduce (_, reduction_kind, pattern) ->
162 (match reduction_kind with
163 | `Normalize -> Tactics.normalize ~pattern
164 | `Simpl -> Tactics.simpl ~pattern
165 | `Unfold what -> Tactics.unfold ~pattern what
166 | `Whd -> Tactics.whd ~pattern)
167 | GrafiteAst.Reflexivity _ -> Tactics.reflexivity
168 | GrafiteAst.Replace (_, pattern, with_what) ->
169 Tactics.replace ~pattern ~with_what
170 | GrafiteAst.Rewrite (_, direction, t, pattern, names) ->
171 EqualityTactics.rewrite_tac ~direction ~pattern t
172 (* to be replaced with ~mk_fresh_name_callback:(namer_of names) *)
173 (List.map (function Some s -> s | None -> assert false) names)
174 | GrafiteAst.Right _ -> Tactics.right
175 | GrafiteAst.Ring _ -> Tactics.ring
176 | GrafiteAst.Split _ -> Tactics.split
177 | GrafiteAst.Symmetry _ -> Tactics.symmetry
178 | GrafiteAst.Transitivity (_, term) -> Tactics.transitivity term
179 (* Implementazioni Aggiunte *)
180 | GrafiteAst.Assume (_, id, t) -> Declarative.assume id t
181 | GrafiteAst.Suppose (_, t, id, t1) -> Declarative.suppose t id t1
182 | GrafiteAst.By_just_we_proved (_, just, ty, id, t1) ->
183 Declarative.by_just_we_proved ~dbd:(LibraryDb.instance())
184 ~universe:status.GrafiteTypes.universe just ty id t1
185 | GrafiteAst.We_need_to_prove (_, t, id, t2) ->
186 Declarative.we_need_to_prove t id t2
187 | GrafiteAst.Bydone (_, t) ->
188 Declarative.bydone ~dbd:(LibraryDb.instance())
189 ~universe:status.GrafiteTypes.universe t
190 | GrafiteAst.We_proceed_by_cases_on (_, t, t1) ->
191 Declarative.we_proceed_by_cases_on t t1
192 | GrafiteAst.We_proceed_by_induction_on (_, t, t1) ->
193 Declarative.we_proceed_by_induction_on t t1
194 | GrafiteAst.Byinduction (_, t, id) -> Declarative.byinduction t id
195 | GrafiteAst.Thesisbecomes (_, t) -> Declarative.thesisbecomes t
196 | GrafiteAst.ExistsElim (_, just, id1, t1, id2, t2) ->
197 Declarative.existselim ~dbd:(LibraryDb.instance())
198 ~universe:status.GrafiteTypes.universe just id1 t1 id2 t2
199 | GrafiteAst.Case (_,id,params) -> Declarative.case id params
200 | GrafiteAst.AndElim(_,just,id1,t1,id2,t2) ->
201 Declarative.andelim ~dbd:(LibraryDb.instance ())
202 ~universe:status.GrafiteTypes.universe just id1 t1 id2 t2
203 | GrafiteAst.RewritingStep (_,termine,t1,t2,cont) ->
204 Declarative.rewritingstep ~dbd:(LibraryDb.instance ())
205 ~universe:status.GrafiteTypes.universe termine t1 t2 cont
207 let classify_tactic tactic =
209 (* tactics that can't close the goal (return a goal we want to "select") *)
210 | GrafiteAst.Rewrite _
212 | GrafiteAst.Replace _
213 | GrafiteAst.Reduce _
215 | GrafiteAst.Generalize _
218 | GrafiteAst.Decompose _ -> true
219 (* tactics like apply *)
222 let reorder_metasenv start refine tactic goals current_goal always_opens_a_goal=
223 (* let print_m name metasenv =
224 prerr_endline (">>>>> " ^ name);
225 prerr_endline (CicMetaSubst.ppmetasenv [] metasenv)
227 (* phase one calculates:
228 * new_goals_from_refine: goals added by refine
229 * head_goal: the first goal opened by ythe tactic
230 * other_goals: other goals opened by the tactic
232 let new_goals_from_refine = PEH.compare_metasenvs start refine in
233 let new_goals_from_tactic = PEH.compare_metasenvs refine tactic in
234 let head_goal, other_goals, goals =
236 | [] -> None,[],goals
238 (* assert (List.mem hd new_goals_from_tactic);
239 * invalidato dalla goal_tac
241 Some hd, List.filter ((<>) hd) new_goals_from_tactic, List.filter ((<>)
246 | None -> new_goals_from_refine @ other_goals
247 | Some x -> x :: new_goals_from_refine @ other_goals
249 (* extract the metas generated by refine and tactic *)
250 let metas_for_tactic_head =
253 | Some head_goal -> List.filter (fun (n,_,_) -> n = head_goal) tactic in
254 let metas_for_tactic_goals =
256 (fun x -> List.find (fun (metano,_,_) -> metano = x) tactic)
259 let metas_for_refine_goals =
260 List.filter (fun (n,_,_) -> List.mem n new_goals_from_refine) tactic in
261 let produced_metas, goals =
263 if always_opens_a_goal then
264 metas_for_tactic_head @ metas_for_refine_goals @
265 metas_for_tactic_goals
267 (* print_m "metas_for_refine_goals" metas_for_refine_goals;
268 print_m "metas_for_tactic_head" metas_for_tactic_head;
269 print_m "metas_for_tactic_goals" metas_for_tactic_goals; *)
270 metas_for_refine_goals @ metas_for_tactic_head @
271 metas_for_tactic_goals
274 let goals = List.map (fun (metano, _, _) -> metano) produced_metas in
275 produced_metas, goals
277 (* residual metas, preserving the original order *)
282 | (metano, _, _) :: tl when metano = e ->
283 [], List.map (fun (x,_,_) -> x) tl
284 | (metano, _, _) :: tl -> let b, a = split e tl in metano :: b, a
286 let find n metasenv =
288 Some (List.find (fun (metano, _, _) -> metano = n) metasenv)
289 with Not_found -> None
294 match find n tactic with
298 let before_l, after_l = split current_goal start in
300 List.filter (fun x -> not (List.mem x produced_goals)) before_l in
302 List.filter (fun x -> not (List.mem x produced_goals)) after_l in
303 let before = extract before_l in
304 let after = extract after_l in
308 print_m "BEGIN" start;
309 prerr_endline ("goal was: " ^ string_of_int current_goal);
310 prerr_endline ("and metas from refine are:");
312 (fun t -> prerr_string (" " ^ string_of_int t))
313 new_goals_from_refine;
315 print_m "before" before;
316 print_m "metas_for_tactic_head" metas_for_tactic_head;
317 print_m "metas_for_refine_goals" metas_for_refine_goals;
318 print_m "metas_for_tactic_goals" metas_for_tactic_goals;
319 print_m "produced_metas" produced_metas;
320 print_m "after" after;
321 |+ FINE DEBUG CODE +| *)
322 before @ produced_metas @ after, goals
324 let apply_tactic ~disambiguate_tactic (text,prefix_len,tactic) (status, goal) =
325 let starting_metasenv = GrafiteTypes.get_proof_metasenv status in
326 let before = List.map (fun g, _, _ -> g) starting_metasenv in
327 let status, tactic = disambiguate_tactic status goal (text,prefix_len,tactic) in
328 let metasenv_after_refinement = GrafiteTypes.get_proof_metasenv status in
329 let proof = GrafiteTypes.get_current_proof status in
330 let proof_status = proof, goal in
331 let always_opens_a_goal = classify_tactic tactic in
332 let tactic = tactic_of_ast status tactic in
333 let (proof, opened) = ProofEngineTypes.apply_tactic tactic proof_status in
334 let after = ProofEngineTypes.goals_of_proof proof in
335 let opened_goals, closed_goals = Tacticals.goals_diff ~before ~after ~opened in
336 let proof, opened_goals =
337 let uri, metasenv_after_tactic, _subst, t, ty, attrs = proof in
338 let reordered_metasenv, opened_goals =
341 metasenv_after_refinement metasenv_after_tactic
342 opened goal always_opens_a_goal
344 let proof' = uri, reordered_metasenv, _subst, t, ty, attrs in
347 let incomplete_proof =
348 match status.GrafiteTypes.proof_status with
349 | GrafiteTypes.Incomplete_proof p -> p
352 { status with GrafiteTypes.proof_status =
353 GrafiteTypes.Incomplete_proof
354 { incomplete_proof with GrafiteTypes.proof = proof } },
355 opened_goals, closed_goals
357 let apply_atomic_tactical ~disambiguate_tactic ~patch (text,prefix_len,tactic) (status, goal) =
358 let starting_metasenv = GrafiteTypes.get_proof_metasenv status in
359 let before = List.map (fun g, _, _ -> g) starting_metasenv in
360 let status, tactic = disambiguate_tactic status goal (text,prefix_len,tactic) in
361 let metasenv_after_refinement = GrafiteTypes.get_proof_metasenv status in
362 let proof = GrafiteTypes.get_current_proof status in
363 let proof_status = proof, goal in
364 let always_opens_a_goal = classify_tactic tactic in
365 let tactic = tactic_of_ast status tactic in
366 let tactic = patch tactic in
367 let (proof, opened) = ProofEngineTypes.apply_tactic tactic proof_status in
368 let after = ProofEngineTypes.goals_of_proof proof in
369 let opened_goals, closed_goals = Tacticals.goals_diff ~before ~after ~opened in
370 let proof, opened_goals =
371 let uri, metasenv_after_tactic, _subst, t, ty, attrs = proof in
372 let reordered_metasenv, opened_goals =
375 metasenv_after_refinement metasenv_after_tactic
376 opened goal always_opens_a_goal
378 let proof' = uri, reordered_metasenv, _subst, t, ty, attrs in
381 let incomplete_proof =
382 match status.GrafiteTypes.proof_status with
383 | GrafiteTypes.Incomplete_proof p -> p
386 { status with GrafiteTypes.proof_status =
387 GrafiteTypes.Incomplete_proof
388 { incomplete_proof with GrafiteTypes.proof = proof } },
389 opened_goals, closed_goals
392 'term 'lazy_term 'reduction 'obj 'ident.
394 (GrafiteTypes.status ->
395 ProofEngineTypes.goal ->
396 (('term, 'lazy_term, 'reduction, 'ident) GrafiteAst.tactic)
397 disambiguator_input ->
398 GrafiteTypes.status *
399 (Cic.term, Cic.lazy_term, Cic.lazy_term GrafiteAst.reduction, string) GrafiteAst.tactic) ->
401 disambiguate_command:
402 (GrafiteTypes.status ->
403 (('term,'obj) GrafiteAst.command) disambiguator_input ->
404 GrafiteTypes.status * (Cic.term,Cic.obj) GrafiteAst.command) ->
407 (GrafiteTypes.status ->
408 ('term GrafiteAst.macro) disambiguator_input ->
409 Cic.context -> GrafiteTypes.status * Cic.term GrafiteAst.macro) ->
411 ?do_heavy_checks:bool ->
412 GrafiteTypes.status ->
413 (('term, 'lazy_term, 'reduction, 'obj, 'ident) GrafiteAst.statement)
414 disambiguator_input ->
415 GrafiteTypes.status * UriManager.uri list
418 type 'a eval_command =
420 disambiguate_command:
421 (GrafiteTypes.status -> (('term,'obj) GrafiteAst.command) disambiguator_input ->
422 GrafiteTypes.status * (Cic.term,Cic.obj) GrafiteAst.command) ->
423 options -> GrafiteTypes.status ->
424 (('term,'obj) GrafiteAst.command) disambiguator_input ->
425 GrafiteTypes.status * UriManager.uri list
428 type 'a eval_executable =
429 {ee_go: 'term 'lazy_term 'reduction 'obj 'ident.
431 (GrafiteTypes.status ->
432 ProofEngineTypes.goal ->
433 (('term, 'lazy_term, 'reduction, 'ident) GrafiteAst.tactic)
434 disambiguator_input ->
435 GrafiteTypes.status *
436 (Cic.term, Cic.lazy_term, Cic.lazy_term GrafiteAst.reduction, string) GrafiteAst.tactic) ->
438 disambiguate_command:
439 (GrafiteTypes.status ->
440 (('term,'obj) GrafiteAst.command) disambiguator_input ->
441 GrafiteTypes.status * (Cic.term,Cic.obj) GrafiteAst.command) ->
444 (GrafiteTypes.status ->
445 ('term GrafiteAst.macro) disambiguator_input ->
446 Cic.context -> GrafiteTypes.status * Cic.term GrafiteAst.macro) ->
449 GrafiteTypes.status ->
450 (('term, 'lazy_term, 'reduction, 'obj, 'ident) GrafiteAst.code) disambiguator_input ->
451 GrafiteTypes.status * UriManager.uri list
454 type 'a eval_from_moo =
455 { efm_go: GrafiteTypes.status -> string -> GrafiteTypes.status }
457 let coercion_moo_statement_of (uri,arity, saturations) =
459 (HExtlib.dummy_floc, CicUtil.term_of_uri uri, false, arity, saturations)
461 let refinement_toolkit = {
462 RefinementTool.type_of_aux' =
463 (fun ?localization_tbl e c t u ->
464 let saved = !CicRefine.insert_coercions in
465 CicRefine.insert_coercions:= false;
468 let t, ty, metasenv, ugraph =
469 CicRefine.type_of_aux' ?localization_tbl e c t u in
470 RefinementTool.Success (t, ty, metasenv, ugraph)
472 | CicRefine.RefineFailure s
473 | CicRefine.Uncertain s
474 | CicRefine.AssertFailure s -> RefinementTool.Exception s
476 CicRefine.insert_coercions := saved;
478 RefinementTool.ppsubst = CicMetaSubst.ppsubst;
479 RefinementTool.apply_subst = CicMetaSubst.apply_subst;
480 RefinementTool.ppmetasenv = CicMetaSubst.ppmetasenv;
481 RefinementTool.pack_coercion_obj = CicRefine.pack_coercion_obj;
484 let eval_coercion status ~add_composites uri arity saturations =
486 try CicUtil.uri_of_term uri
487 with Invalid_argument _ ->
488 raise (Invalid_argument "coercion can only be constants/constructors")
490 let status,compounds =
491 GrafiteSync.add_coercion ~add_composites refinement_toolkit status uri arity
492 saturations (GrafiteTypes.get_baseuri status)
495 List.map coercion_moo_statement_of ((uri,arity,saturations)::compounds)
497 let status = GrafiteTypes.add_moo_content moo_content status in
498 {status with GrafiteTypes.proof_status = GrafiteTypes.No_proof},
499 List.map (fun u,_,_ -> u) compounds
501 module MatitaStatus =
503 type input_status = GrafiteTypes.status * ProofEngineTypes.goal
506 GrafiteTypes.status * ProofEngineTypes.goal list * ProofEngineTypes.goal list
508 type tactic = input_status -> output_status
510 let mk_tactic tac = tac
511 let apply_tactic tac = tac
512 let goals (_, opened, closed) = opened, closed
513 let get_stack (status, _) = GrafiteTypes.get_stack status
515 let set_stack stack (status, opened, closed) =
516 GrafiteTypes.set_stack stack status, opened, closed
518 let inject (status, _) = (status, [], [])
519 let focus goal (status, _, _) = (status, goal)
522 module MatitaTacticals = Continuationals.Make(MatitaStatus)
524 let tactic_of_ast' tac =
525 MatitaTacticals.Tactical (MatitaTacticals.Tactic (MatitaStatus.mk_tactic tac))
527 let punctuation_tactical_of_ast (text,prefix_len,punct) =
529 | GrafiteAst.Dot _loc -> MatitaTacticals.Dot
530 | GrafiteAst.Semicolon _loc -> MatitaTacticals.Semicolon
531 | GrafiteAst.Branch _loc -> MatitaTacticals.Branch
532 | GrafiteAst.Shift _loc -> MatitaTacticals.Shift
533 | GrafiteAst.Pos (_loc, i) -> MatitaTacticals.Pos i
534 | GrafiteAst.Merge _loc -> MatitaTacticals.Merge
535 | GrafiteAst.Wildcard _loc -> MatitaTacticals.Wildcard
537 let non_punctuation_tactical_of_ast (text,prefix_len,punct) =
539 | GrafiteAst.Focus (_loc,goals) -> MatitaTacticals.Focus goals
540 | GrafiteAst.Unfocus _loc -> MatitaTacticals.Unfocus
541 | GrafiteAst.Skip _loc -> MatitaTacticals.Tactical MatitaTacticals.Skip
543 let eval_tactical status tac =
544 let status, _, _ = MatitaTacticals.eval tac (status, ~-1) in
545 let status = (* is proof completed? *)
546 match status.GrafiteTypes.proof_status with
547 | GrafiteTypes.Incomplete_proof
548 { GrafiteTypes.stack = stack; proof = proof }
549 when Continuationals.Stack.is_empty stack ->
550 { status with GrafiteTypes.proof_status = GrafiteTypes.Proof proof }
555 let eval_comment status c = status
557 (* since the record syntax allows to declare coercions, we have to put this
558 * information inside the moo *)
559 let add_coercions_of_record_to_moo obj lemmas status =
560 let attributes = CicUtil.attributes_of_obj obj in
561 let is_record = function `Class (`Record att) -> Some att | _-> None in
562 match HExtlib.list_findopt is_record attributes with
565 let is_a_coercion uri =
568 CicEnvironment.get_cooked_obj CicUniv.oblivion_ugraph uri in
569 let attrs = CicUtil.attributes_of_obj obj in
572 (function `Class (`Coercion _) -> true | _-> false) attrs
573 with `Class (`Coercion n) -> true,n | _ -> assert false
574 with Not_found -> false,0
575 with Not_found -> assert false
577 let buri = GrafiteTypes.get_baseuri status in
578 (* looking at the fields we can know the 'wanted' coercions, but not the
579 * actually generated ones. So, only the intersection between the wanted
580 * and the actual should be in the moo as coercion, while everithing in
581 * lemmas should go as aliases *)
582 let wanted_coercions =
585 | (name,true,arity) ->
587 (arity, UriManager.uri_of_string (buri ^ "/" ^ name ^ ".con" ))
591 (*prerr_endline "wanted coercions:";
593 (fun u -> prerr_endline (UriManager.string_of_uri u))
595 let coercions, moo_content =
599 let is_a_wanted_coercion,arity_wanted =
602 List.find (fun (n,u) -> UriManager.eq u uri)
606 with Not_found -> false, 0
608 let is_a_coercion, arity_coercion = is_a_coercion uri in
609 if is_a_coercion then
610 Some (uri, coercion_moo_statement_of (uri,arity_coercion,0))
611 else if is_a_wanted_coercion then
612 Some (uri, coercion_moo_statement_of (uri,arity_wanted,0))
617 (*prerr_endline "actual coercions:";
619 (fun u -> prerr_endline (UriManager.string_of_uri u))
621 prerr_endline "lemmas was:";
623 (fun u -> prerr_endline (UriManager.string_of_uri u))
625 let status = GrafiteTypes.add_moo_content moo_content status in
627 GrafiteTypes.coercions = coercions @ status.GrafiteTypes.coercions},
630 let add_obj uri obj status =
631 let status,lemmas = GrafiteSync.add_obj refinement_toolkit uri obj status in
634 let rec eval_command = {ec_go = fun ~disambiguate_command opts status
635 (text,prefix_len,cmd) ->
636 let status,cmd = disambiguate_command status (text,prefix_len,cmd) in
639 | GrafiteAst.Index (loc,None,uri) ->
640 assert false (* TODO: for user input *)
641 | GrafiteAst.Index (loc,Some key,uri) ->
642 let universe = Universe.index
643 status.GrafiteTypes.universe key (CicUtil.term_of_uri uri) in
644 let status = {status with GrafiteTypes.universe = universe} in
647 let candidates = Universe.get_candidates status.GrafiteTypes.universe key in
648 ("candidates for " ^ (CicPp.ppterm key) ^ " = " ^
649 (String.concat "\n" (List.map CicPp.ppterm candidates)))
653 let status = GrafiteTypes.add_moo_content [cmd] status in
655 | GrafiteAst.Coercion (loc, uri, add_composites, arity, saturations) ->
656 eval_coercion status ~add_composites uri arity saturations
657 | GrafiteAst.Default (loc, what, uris) as cmd ->
658 LibraryObjects.set_default what uris;
659 GrafiteTypes.add_moo_content [cmd] status,[]
660 | GrafiteAst.Drop loc -> raise Drop
661 | GrafiteAst.Include (loc, baseuri) ->
662 let moopath_rw, moopath_r =
663 LibraryMisc.obj_file_of_baseuri
664 ~must_exist:false ~baseuri ~writable:true,
665 LibraryMisc.obj_file_of_baseuri
666 ~must_exist:false ~baseuri ~writable:false
669 if Sys.file_exists moopath_r then moopath_r else
670 if Sys.file_exists moopath_rw then moopath_rw else
671 raise (IncludedFileNotCompiled (moopath_rw,baseuri))
673 let status = eval_from_moo.efm_go status moopath in
675 let lt_uri = UriManager.uri_of_string "cic:/matita/nat/orders/lt.con" in
676 let nat_uri = UriManager.uri_of_string "cic:/matita/nat/nat/nat.ind" in
677 let nat = Cic.MutInd(nat_uri,0,[]) in
678 let zero = Cic.MutConstruct(nat_uri,0,1,[]) in
679 let succ = Cic.MutConstruct(nat_uri,0,2,[]) in
680 let fake= Cic.Meta(-1,[]) in
681 let term= Cic.Appl [Cic.Const (lt_uri,[]);zero;Cic.Appl[succ;zero]] in let msg =
682 let candidates = Universe.get_candidates status.GrafiteTypes.universe term in
683 ("candidates for " ^ (CicPp.ppterm term) ^ " = " ^
684 (String.concat "\n" (List.map CicPp.ppterm candidates)))
689 | GrafiteAst.Print (_,"proofterm") ->
690 let _,_,_,p,_, _ = GrafiteTypes.get_current_proof status in
691 prerr_endline (Auto.pp_proofterm p);
693 | GrafiteAst.Print (_,_) -> status,[]
694 | GrafiteAst.Qed loc ->
695 let uri, metasenv, _subst, bo, ty, attrs =
696 match status.GrafiteTypes.proof_status with
697 | GrafiteTypes.Proof (Some uri, metasenv, subst, body, ty, attrs) ->
698 uri, metasenv, subst, body, ty, attrs
699 | GrafiteTypes.Proof (None, metasenv, subst, body, ty, attrs) ->
700 raise (GrafiteTypes.Command_error
701 ("Someone allows to start a theorem without giving the "^
702 "name/uri. This should be fixed!"))
705 (GrafiteTypes.Command_error "You can't Qed an incomplete theorem")
707 if metasenv <> [] then
709 (GrafiteTypes.Command_error
710 "Proof not completed! metasenv is not empty!");
711 let name = UriManager.name_of_uri uri in
712 let obj = Cic.Constant (name,Some bo,ty,[],attrs) in
713 let status, lemmas = add_obj uri obj status in
715 GrafiteTypes.proof_status = GrafiteTypes.No_proof},
716 (*CSC: I throw away the arities *)
718 | GrafiteAst.Relation (loc, id, a, aeq, refl, sym, trans) ->
719 Setoids.add_relation id a aeq refl sym trans;
720 status, [] (*CSC: TO BE FIXED *)
721 | GrafiteAst.Set (loc, name, value) -> status, []
722 (* GrafiteTypes.set_option status name value,[] *)
723 | GrafiteAst.Obj (loc,obj) ->
726 Cic.Constant (name,_,_,_,_)
727 | Cic.CurrentProof (name,_,_,_,_,_) -> ".con",name
728 | Cic.InductiveDefinition (types,_,_,_) ->
730 (match types with (name,_,_,_)::_ -> name | _ -> assert false)
731 | _ -> assert false in
732 let buri = GrafiteTypes.get_baseuri status in
733 let uri = UriManager.uri_of_string (buri ^ "/" ^ name ^ ext) in
734 let obj = CicRefine.pack_coercion_obj obj in
735 let metasenv = GrafiteTypes.get_proof_metasenv status in
737 | Cic.CurrentProof (_,metasenv',bo,ty,_, attrs) ->
738 let name = UriManager.name_of_uri uri in
739 if not(CicPp.check name ty) then
740 HLog.warn ("Bad name: " ^ name);
741 if opts.do_heavy_checks then
743 let dbd = LibraryDb.instance () in
744 let similar = Whelp.match_term ~dbd ty in
745 let similar_len = List.length similar in
746 if similar_len> 30 then
748 ("Duplicate check will compare your theorem with " ^
749 string_of_int similar_len ^
750 " theorems, this may take a while."));
754 let t = CicUtil.term_of_uri u in
756 CicTypeChecker.type_of_aux'
757 metasenv' [] t CicUniv.oblivion_ugraph
759 fst(CicReduction.are_convertible [] ty' ty g))
762 (match convertible with
766 ("Theorem already proved: " ^ UriManager.string_of_uri x ^
767 "\nPlease use a variant."));
770 let initial_proof = (Some uri, metasenv', _subst, bo, ty, attrs) in
771 let initial_stack = Continuationals.Stack.of_metasenv metasenv' in
772 { status with GrafiteTypes.proof_status =
773 GrafiteTypes.Incomplete_proof
774 { GrafiteTypes.proof = initial_proof; stack = initial_stack } },
777 if metasenv <> [] then
778 raise (GrafiteTypes.Command_error (
779 "metasenv not empty while giving a definition with body: " ^
780 CicMetaSubst.ppmetasenv [] metasenv));
781 let status, lemmas = add_obj uri obj status in
782 let status,new_lemmas =
783 add_coercions_of_record_to_moo obj lemmas status
785 {status with GrafiteTypes.proof_status = GrafiteTypes.No_proof},
786 uri::new_lemmas@lemmas
788 match status.GrafiteTypes.proof_status with
789 GrafiteTypes.Intermediate _ ->
790 {status with GrafiteTypes.proof_status = GrafiteTypes.No_proof},uris
793 } and eval_executable = {ee_go = fun ~disambiguate_tactic ~disambiguate_command
794 ~disambiguate_macro opts status (text,prefix_len,ex) ->
796 | GrafiteAst.Tactic (_, Some tac, punct) ->
797 let tac = apply_tactic ~disambiguate_tactic (text,prefix_len,tac) in
798 let status = eval_tactical status (tactic_of_ast' tac) in
800 (punctuation_tactical_of_ast (text,prefix_len,punct)),[]
801 | GrafiteAst.Tactic (_, None, punct) ->
803 (punctuation_tactical_of_ast (text,prefix_len,punct)),[]
804 | GrafiteAst.NonPunctuationTactical (_, tac, punct) ->
807 (non_punctuation_tactical_of_ast (text,prefix_len,tac))
810 (punctuation_tactical_of_ast (text,prefix_len,punct)),[]
811 | GrafiteAst.Command (_, cmd) ->
812 eval_command.ec_go ~disambiguate_command opts status (text,prefix_len,cmd)
813 | GrafiteAst.Macro (loc, macro) ->
814 raise (Macro (loc,disambiguate_macro status (text,prefix_len,macro)))
816 } and eval_from_moo = {efm_go = fun status fname ->
818 ("",0,GrafiteAst.Executable (HExtlib.dummy_floc,
819 GrafiteAst.Command (HExtlib.dummy_floc,
822 let moo = GrafiteMarshal.load_moo fname in
825 let ast = ast_of_cmd ast in
828 ~disambiguate_tactic:(fun status _ (_,_,tactic) -> status,tactic)
829 ~disambiguate_command:(fun status (_,_,cmd) -> status,cmd)
830 ~disambiguate_macro:(fun _ _ -> assert false)
836 } and eval_ast = {ea_go = fun ~disambiguate_tactic ~disambiguate_command
837 ~disambiguate_macro ?(do_heavy_checks=false) status
840 let opts = { do_heavy_checks = do_heavy_checks ; } in
842 | GrafiteAst.Executable (_,ex) ->
843 eval_executable.ee_go ~disambiguate_tactic ~disambiguate_command
844 ~disambiguate_macro opts status (text,prefix_len,ex)
845 | GrafiteAst.Comment (_,c) -> eval_comment status (text,prefix_len,c),[]
848 let eval_ast = eval_ast.ea_go