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, (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_term_we_proved (_, t, ty, id, t1) ->
183 Declarative.by_term_we_proved ~dbd:(LibraryDb.instance())
184 ~universe:status.GrafiteTypes.universe t 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 (_, t, id1, t1, id2, t2) ->
197 Declarative.existselim ~dbd:(LibraryDb.instance())
198 ~universe:status.GrafiteTypes.universe t id1 t1 id2 t2
199 | GrafiteAst.Case (_,id,params) -> Declarative.case id params
200 | GrafiteAst.AndElim(_,t,id1,t1,id2,t2) -> Declarative.andelim t id1 t1 id2 t2
201 | GrafiteAst.RewritingStep (_,termine,t1,t2,cont) ->
202 Declarative.rewritingstep ~dbd:(LibraryDb.instance ())
203 ~universe:status.GrafiteTypes.universe termine t1 t2 cont
205 let classify_tactic tactic =
207 (* tactics that can't close the goal (return a goal we want to "select") *)
208 | GrafiteAst.Rewrite _
210 | GrafiteAst.Replace _
211 | GrafiteAst.Reduce _
213 | GrafiteAst.Generalize _
216 | GrafiteAst.Decompose _ -> true
217 (* tactics like apply *)
220 let reorder_metasenv start refine tactic goals current_goal always_opens_a_goal=
221 (* let print_m name metasenv =
222 prerr_endline (">>>>> " ^ name);
223 prerr_endline (CicMetaSubst.ppmetasenv [] metasenv)
225 (* phase one calculates:
226 * new_goals_from_refine: goals added by refine
227 * head_goal: the first goal opened by ythe tactic
228 * other_goals: other goals opened by the tactic
230 let new_goals_from_refine = PEH.compare_metasenvs start refine in
231 let new_goals_from_tactic = PEH.compare_metasenvs refine tactic in
232 let head_goal, other_goals, goals =
234 | [] -> None,[],goals
236 (* assert (List.mem hd new_goals_from_tactic);
237 * invalidato dalla goal_tac
239 Some hd, List.filter ((<>) hd) new_goals_from_tactic, List.filter ((<>)
244 | None -> new_goals_from_refine @ other_goals
245 | Some x -> x :: new_goals_from_refine @ other_goals
247 (* extract the metas generated by refine and tactic *)
248 let metas_for_tactic_head =
251 | Some head_goal -> List.filter (fun (n,_,_) -> n = head_goal) tactic in
252 let metas_for_tactic_goals =
254 (fun x -> List.find (fun (metano,_,_) -> metano = x) tactic)
257 let metas_for_refine_goals =
258 List.filter (fun (n,_,_) -> List.mem n new_goals_from_refine) tactic in
259 let produced_metas, goals =
261 if always_opens_a_goal then
262 metas_for_tactic_head @ metas_for_refine_goals @
263 metas_for_tactic_goals
265 (* print_m "metas_for_refine_goals" metas_for_refine_goals;
266 print_m "metas_for_tactic_head" metas_for_tactic_head;
267 print_m "metas_for_tactic_goals" metas_for_tactic_goals; *)
268 metas_for_refine_goals @ metas_for_tactic_head @
269 metas_for_tactic_goals
272 let goals = List.map (fun (metano, _, _) -> metano) produced_metas in
273 produced_metas, goals
275 (* residual metas, preserving the original order *)
280 | (metano, _, _) :: tl when metano = e ->
281 [], List.map (fun (x,_,_) -> x) tl
282 | (metano, _, _) :: tl -> let b, a = split e tl in metano :: b, a
284 let find n metasenv =
286 Some (List.find (fun (metano, _, _) -> metano = n) metasenv)
287 with Not_found -> None
292 match find n tactic with
296 let before_l, after_l = split current_goal start in
298 List.filter (fun x -> not (List.mem x produced_goals)) before_l in
300 List.filter (fun x -> not (List.mem x produced_goals)) after_l in
301 let before = extract before_l in
302 let after = extract after_l in
306 print_m "BEGIN" start;
307 prerr_endline ("goal was: " ^ string_of_int current_goal);
308 prerr_endline ("and metas from refine are:");
310 (fun t -> prerr_string (" " ^ string_of_int t))
311 new_goals_from_refine;
313 print_m "before" before;
314 print_m "metas_for_tactic_head" metas_for_tactic_head;
315 print_m "metas_for_refine_goals" metas_for_refine_goals;
316 print_m "metas_for_tactic_goals" metas_for_tactic_goals;
317 print_m "produced_metas" produced_metas;
318 print_m "after" after;
319 |+ FINE DEBUG CODE +| *)
320 before @ produced_metas @ after, goals
322 let apply_tactic ~disambiguate_tactic (text,prefix_len,tactic) (status, goal) =
323 let starting_metasenv = GrafiteTypes.get_proof_metasenv status in
324 let before = List.map (fun g, _, _ -> g) starting_metasenv in
325 let status, tactic = disambiguate_tactic status goal (text,prefix_len,tactic) in
326 let metasenv_after_refinement = GrafiteTypes.get_proof_metasenv status in
327 let proof = GrafiteTypes.get_current_proof status in
328 let proof_status = proof, goal in
329 let always_opens_a_goal = classify_tactic tactic in
330 let tactic = tactic_of_ast status tactic in
331 let (proof, opened) = ProofEngineTypes.apply_tactic tactic proof_status in
332 let after = ProofEngineTypes.goals_of_proof proof in
333 let opened_goals, closed_goals = Tacticals.goals_diff ~before ~after ~opened in
334 let proof, opened_goals =
335 let uri, metasenv_after_tactic, _subst, t, ty, attrs = proof in
336 let reordered_metasenv, opened_goals =
339 metasenv_after_refinement metasenv_after_tactic
340 opened goal always_opens_a_goal
342 let proof' = uri, reordered_metasenv, _subst, t, ty, attrs in
345 let incomplete_proof =
346 match status.GrafiteTypes.proof_status with
347 | GrafiteTypes.Incomplete_proof p -> p
350 { status with GrafiteTypes.proof_status =
351 GrafiteTypes.Incomplete_proof
352 { incomplete_proof with GrafiteTypes.proof = proof } },
353 opened_goals, closed_goals
355 let apply_atomic_tactical ~disambiguate_tactic ~patch (text,prefix_len,tactic) (status, goal) =
356 let starting_metasenv = GrafiteTypes.get_proof_metasenv status in
357 let before = List.map (fun g, _, _ -> g) starting_metasenv in
358 let status, tactic = disambiguate_tactic status goal (text,prefix_len,tactic) in
359 let metasenv_after_refinement = GrafiteTypes.get_proof_metasenv status in
360 let proof = GrafiteTypes.get_current_proof status in
361 let proof_status = proof, goal in
362 let always_opens_a_goal = classify_tactic tactic in
363 let tactic = tactic_of_ast status tactic in
364 let tactic = patch tactic in
365 let (proof, opened) = ProofEngineTypes.apply_tactic tactic proof_status in
366 let after = ProofEngineTypes.goals_of_proof proof in
367 let opened_goals, closed_goals = Tacticals.goals_diff ~before ~after ~opened in
368 let proof, opened_goals =
369 let uri, metasenv_after_tactic, _subst, t, ty, attrs = proof in
370 let reordered_metasenv, opened_goals =
373 metasenv_after_refinement metasenv_after_tactic
374 opened goal always_opens_a_goal
376 let proof' = uri, reordered_metasenv, _subst, t, ty, attrs in
379 let incomplete_proof =
380 match status.GrafiteTypes.proof_status with
381 | GrafiteTypes.Incomplete_proof p -> p
384 { status with GrafiteTypes.proof_status =
385 GrafiteTypes.Incomplete_proof
386 { incomplete_proof with GrafiteTypes.proof = proof } },
387 opened_goals, closed_goals
390 'term 'lazy_term 'reduction 'obj 'ident.
392 (GrafiteTypes.status ->
393 ProofEngineTypes.goal ->
394 (('term, 'lazy_term, 'reduction, 'ident) GrafiteAst.tactic)
395 disambiguator_input ->
396 GrafiteTypes.status *
397 (Cic.term, Cic.lazy_term, Cic.lazy_term GrafiteAst.reduction, string) GrafiteAst.tactic) ->
399 disambiguate_command:
400 (GrafiteTypes.status ->
401 (('term,'obj) GrafiteAst.command) disambiguator_input ->
402 GrafiteTypes.status * (Cic.term,Cic.obj) GrafiteAst.command) ->
405 (GrafiteTypes.status ->
406 ('term GrafiteAst.macro) disambiguator_input ->
407 Cic.context -> GrafiteTypes.status * Cic.term GrafiteAst.macro) ->
409 ?do_heavy_checks:bool ->
410 GrafiteTypes.status ->
411 (('term, 'lazy_term, 'reduction, 'obj, 'ident) GrafiteAst.statement)
412 disambiguator_input ->
413 GrafiteTypes.status * UriManager.uri list
416 type 'a eval_command =
418 disambiguate_command:
419 (GrafiteTypes.status -> (('term,'obj) GrafiteAst.command) disambiguator_input ->
420 GrafiteTypes.status * (Cic.term,Cic.obj) GrafiteAst.command) ->
421 options -> GrafiteTypes.status ->
422 (('term,'obj) GrafiteAst.command) disambiguator_input ->
423 GrafiteTypes.status * UriManager.uri list
426 type 'a eval_executable =
427 {ee_go: 'term 'lazy_term 'reduction 'obj 'ident.
429 (GrafiteTypes.status ->
430 ProofEngineTypes.goal ->
431 (('term, 'lazy_term, 'reduction, 'ident) GrafiteAst.tactic)
432 disambiguator_input ->
433 GrafiteTypes.status *
434 (Cic.term, Cic.lazy_term, Cic.lazy_term GrafiteAst.reduction, string) GrafiteAst.tactic) ->
436 disambiguate_command:
437 (GrafiteTypes.status ->
438 (('term,'obj) GrafiteAst.command) disambiguator_input ->
439 GrafiteTypes.status * (Cic.term,Cic.obj) GrafiteAst.command) ->
442 (GrafiteTypes.status ->
443 ('term GrafiteAst.macro) disambiguator_input ->
444 Cic.context -> GrafiteTypes.status * Cic.term GrafiteAst.macro) ->
447 GrafiteTypes.status ->
448 (('term, 'lazy_term, 'reduction, 'obj, 'ident) GrafiteAst.code) disambiguator_input ->
449 GrafiteTypes.status * UriManager.uri list
452 type 'a eval_from_moo =
453 { efm_go: GrafiteTypes.status -> string -> GrafiteTypes.status }
455 let coercion_moo_statement_of (uri,arity, saturations) =
456 GrafiteAst.Coercion (HExtlib.dummy_floc, uri, false, arity, saturations)
458 let refinement_toolkit = {
459 RefinementTool.type_of_aux' =
460 (fun ?localization_tbl e c t u ->
461 let saved = !CicRefine.insert_coercions in
462 CicRefine.insert_coercions:= false;
465 let t, ty, metasenv, ugraph =
466 CicRefine.type_of_aux' ?localization_tbl e c t u in
467 RefinementTool.Success (t, ty, metasenv, ugraph)
469 | CicRefine.RefineFailure s
470 | CicRefine.Uncertain s
471 | CicRefine.AssertFailure s -> RefinementTool.Exception s
473 CicRefine.insert_coercions := saved;
475 RefinementTool.ppsubst = CicMetaSubst.ppsubst;
476 RefinementTool.apply_subst = CicMetaSubst.apply_subst;
477 RefinementTool.ppmetasenv = CicMetaSubst.ppmetasenv;
478 RefinementTool.pack_coercion_obj = CicRefine.pack_coercion_obj;
481 let eval_coercion status ~add_composites uri arity saturations =
482 let status,compounds =
483 GrafiteSync.add_coercion ~add_composites refinement_toolkit status uri arity
484 saturations (GrafiteTypes.get_baseuri status)
487 List.map coercion_moo_statement_of ((uri,arity,saturations)::compounds)
489 let status = GrafiteTypes.add_moo_content moo_content status in
490 {status with GrafiteTypes.proof_status = GrafiteTypes.No_proof},
491 List.map (fun u,_,_ -> u) compounds
493 module MatitaStatus =
495 type input_status = GrafiteTypes.status * ProofEngineTypes.goal
498 GrafiteTypes.status * ProofEngineTypes.goal list * ProofEngineTypes.goal list
500 type tactic = input_status -> output_status
502 let mk_tactic tac = tac
503 let apply_tactic tac = tac
504 let goals (_, opened, closed) = opened, closed
505 let get_stack (status, _) = GrafiteTypes.get_stack status
507 let set_stack stack (status, opened, closed) =
508 GrafiteTypes.set_stack stack status, opened, closed
510 let inject (status, _) = (status, [], [])
511 let focus goal (status, _, _) = (status, goal)
514 module MatitaTacticals = Continuationals.Make(MatitaStatus)
516 let tactic_of_ast' tac =
517 MatitaTacticals.Tactical (MatitaTacticals.Tactic (MatitaStatus.mk_tactic tac))
519 let punctuation_tactical_of_ast (text,prefix_len,punct) =
521 | GrafiteAst.Dot _loc -> MatitaTacticals.Dot
522 | GrafiteAst.Semicolon _loc -> MatitaTacticals.Semicolon
523 | GrafiteAst.Branch _loc -> MatitaTacticals.Branch
524 | GrafiteAst.Shift _loc -> MatitaTacticals.Shift
525 | GrafiteAst.Pos (_loc, i) -> MatitaTacticals.Pos i
526 | GrafiteAst.Merge _loc -> MatitaTacticals.Merge
527 | GrafiteAst.Wildcard _loc -> MatitaTacticals.Wildcard
529 let non_punctuation_tactical_of_ast (text,prefix_len,punct) =
531 | GrafiteAst.Focus (_loc,goals) -> MatitaTacticals.Focus goals
532 | GrafiteAst.Unfocus _loc -> MatitaTacticals.Unfocus
533 | GrafiteAst.Skip _loc -> MatitaTacticals.Tactical MatitaTacticals.Skip
535 let eval_tactical status tac =
536 let status, _, _ = MatitaTacticals.eval tac (status, ~-1) in
537 let status = (* is proof completed? *)
538 match status.GrafiteTypes.proof_status with
539 | GrafiteTypes.Incomplete_proof
540 { GrafiteTypes.stack = stack; proof = proof }
541 when Continuationals.Stack.is_empty stack ->
542 { status with GrafiteTypes.proof_status = GrafiteTypes.Proof proof }
547 let eval_comment status c = status
549 (* since the record syntax allows to declare coercions, we have to put this
550 * information inside the moo *)
551 let add_coercions_of_record_to_moo obj lemmas status =
552 let attributes = CicUtil.attributes_of_obj obj in
553 let is_record = function `Class (`Record att) -> Some att | _-> None in
554 match HExtlib.list_findopt is_record attributes with
557 let is_a_coercion uri =
560 CicEnvironment.get_cooked_obj CicUniv.oblivion_ugraph uri in
561 let attrs = CicUtil.attributes_of_obj obj in
564 (function `Class (`Coercion _) -> true | _-> false) attrs
565 with `Class (`Coercion n) -> true,n | _ -> assert false
566 with Not_found -> false,0
567 with Not_found -> assert false
569 let buri = GrafiteTypes.get_baseuri status in
570 (* looking at the fields we can know the 'wanted' coercions, but not the
571 * actually generated ones. So, only the intersection between the wanted
572 * and the actual should be in the moo as coercion, while everithing in
573 * lemmas should go as aliases *)
574 let wanted_coercions =
577 | (name,true,arity) ->
579 (arity, UriManager.uri_of_string (buri ^ "/" ^ name ^ ".con" ))
583 (*prerr_endline "wanted coercions:";
585 (fun u -> prerr_endline (UriManager.string_of_uri u))
587 let coercions, moo_content =
591 let is_a_wanted_coercion,arity_wanted =
594 List.find (fun (n,u) -> UriManager.eq u uri)
598 with Not_found -> false, 0
600 let is_a_coercion, arity_coercion = is_a_coercion uri in
601 if is_a_coercion then
602 Some (uri, coercion_moo_statement_of (uri,arity_coercion,0))
603 else if is_a_wanted_coercion then
604 Some (uri, coercion_moo_statement_of (uri,arity_wanted,0))
609 (*prerr_endline "actual coercions:";
611 (fun u -> prerr_endline (UriManager.string_of_uri u))
613 prerr_endline "lemmas was:";
615 (fun u -> prerr_endline (UriManager.string_of_uri u))
617 let status = GrafiteTypes.add_moo_content moo_content status in
619 GrafiteTypes.coercions = coercions @ status.GrafiteTypes.coercions},
622 let add_obj uri obj status =
623 let status,lemmas = GrafiteSync.add_obj refinement_toolkit uri obj status in
626 let rec eval_command = {ec_go = fun ~disambiguate_command opts status
627 (text,prefix_len,cmd) ->
628 let status,cmd = disambiguate_command status (text,prefix_len,cmd) in
631 | GrafiteAst.Index (loc,None,uri) ->
632 assert false (* TODO: for user input *)
633 | GrafiteAst.Index (loc,Some key,uri) ->
634 let universe = Universe.index
635 status.GrafiteTypes.universe key (CicUtil.term_of_uri uri) in
636 let status = {status with GrafiteTypes.universe = universe} in
639 let candidates = Universe.get_candidates status.GrafiteTypes.universe key in
640 ("candidates for " ^ (CicPp.ppterm key) ^ " = " ^
641 (String.concat "\n" (List.map CicPp.ppterm candidates)))
645 let status = GrafiteTypes.add_moo_content [cmd] status in
647 | GrafiteAst.Coercion (loc, uri, add_composites, arity, saturations) ->
648 eval_coercion status ~add_composites uri arity saturations
649 | GrafiteAst.Default (loc, what, uris) as cmd ->
650 LibraryObjects.set_default what uris;
651 GrafiteTypes.add_moo_content [cmd] status,[]
652 | GrafiteAst.Drop loc -> raise Drop
653 | GrafiteAst.Include (loc, baseuri) ->
654 let moopath_rw, moopath_r =
655 LibraryMisc.obj_file_of_baseuri
656 ~must_exist:false ~baseuri ~writable:true,
657 LibraryMisc.obj_file_of_baseuri
658 ~must_exist:false ~baseuri ~writable:false
661 if Sys.file_exists moopath_r then moopath_r else
662 if Sys.file_exists moopath_rw then moopath_rw else
663 raise (IncludedFileNotCompiled (moopath_rw,baseuri))
665 let status = eval_from_moo.efm_go status moopath in
667 let lt_uri = UriManager.uri_of_string "cic:/matita/nat/orders/lt.con" in
668 let nat_uri = UriManager.uri_of_string "cic:/matita/nat/nat/nat.ind" in
669 let nat = Cic.MutInd(nat_uri,0,[]) in
670 let zero = Cic.MutConstruct(nat_uri,0,1,[]) in
671 let succ = Cic.MutConstruct(nat_uri,0,2,[]) in
672 let fake= Cic.Meta(-1,[]) in
673 let term= Cic.Appl [Cic.Const (lt_uri,[]);zero;Cic.Appl[succ;zero]] in let msg =
674 let candidates = Universe.get_candidates status.GrafiteTypes.universe term in
675 ("candidates for " ^ (CicPp.ppterm term) ^ " = " ^
676 (String.concat "\n" (List.map CicPp.ppterm candidates)))
681 | GrafiteAst.Print (_,"proofterm") ->
682 let _,_,_,p,_, _ = GrafiteTypes.get_current_proof status in
683 prerr_endline (Auto.pp_proofterm p);
685 | GrafiteAst.Print (_,_) -> status,[]
686 | GrafiteAst.Qed loc ->
687 let uri, metasenv, _subst, bo, ty, attrs =
688 match status.GrafiteTypes.proof_status with
689 | GrafiteTypes.Proof (Some uri, metasenv, subst, body, ty, attrs) ->
690 uri, metasenv, subst, body, ty, attrs
691 | GrafiteTypes.Proof (None, metasenv, subst, body, ty, attrs) ->
692 raise (GrafiteTypes.Command_error
693 ("Someone allows to start a theorem without giving the "^
694 "name/uri. This should be fixed!"))
697 (GrafiteTypes.Command_error "You can't Qed an incomplete theorem")
699 if metasenv <> [] then
701 (GrafiteTypes.Command_error
702 "Proof not completed! metasenv is not empty!");
703 let name = UriManager.name_of_uri uri in
704 let obj = Cic.Constant (name,Some bo,ty,[],attrs) in
705 let status, lemmas = add_obj uri obj status in
707 GrafiteTypes.proof_status = GrafiteTypes.No_proof},
708 (*CSC: I throw away the arities *)
710 | GrafiteAst.Relation (loc, id, a, aeq, refl, sym, trans) ->
711 Setoids.add_relation id a aeq refl sym trans;
712 status, [] (*CSC: TO BE FIXED *)
713 | GrafiteAst.Set (loc, name, value) -> status, []
714 (* GrafiteTypes.set_option status name value,[] *)
715 | GrafiteAst.Obj (loc,obj) ->
718 Cic.Constant (name,_,_,_,_)
719 | Cic.CurrentProof (name,_,_,_,_,_) -> ".con",name
720 | Cic.InductiveDefinition (types,_,_,_) ->
722 (match types with (name,_,_,_)::_ -> name | _ -> assert false)
723 | _ -> assert false in
724 let buri = GrafiteTypes.get_baseuri status in
725 let uri = UriManager.uri_of_string (buri ^ "/" ^ name ^ ext) in
726 let obj = CicRefine.pack_coercion_obj obj in
727 let metasenv = GrafiteTypes.get_proof_metasenv status in
729 | Cic.CurrentProof (_,metasenv',bo,ty,_, attrs) ->
730 let name = UriManager.name_of_uri uri in
731 if not(CicPp.check name ty) then
732 HLog.warn ("Bad name: " ^ name);
733 if opts.do_heavy_checks then
735 let dbd = LibraryDb.instance () in
736 let similar = Whelp.match_term ~dbd ty in
737 let similar_len = List.length similar in
738 if similar_len> 30 then
740 ("Duplicate check will compare your theorem with " ^
741 string_of_int similar_len ^
742 " theorems, this may take a while."));
746 let t = CicUtil.term_of_uri u in
748 CicTypeChecker.type_of_aux'
749 metasenv' [] t CicUniv.oblivion_ugraph
751 fst(CicReduction.are_convertible [] ty' ty g))
754 (match convertible with
758 ("Theorem already proved: " ^ UriManager.string_of_uri x ^
759 "\nPlease use a variant."));
762 let initial_proof = (Some uri, metasenv', _subst, bo, ty, attrs) in
763 let initial_stack = Continuationals.Stack.of_metasenv metasenv' in
764 { status with GrafiteTypes.proof_status =
765 GrafiteTypes.Incomplete_proof
766 { GrafiteTypes.proof = initial_proof; stack = initial_stack } },
769 if metasenv <> [] then
770 raise (GrafiteTypes.Command_error (
771 "metasenv not empty while giving a definition with body: " ^
772 CicMetaSubst.ppmetasenv [] metasenv));
773 let status, lemmas = add_obj uri obj status in
774 let status,new_lemmas =
775 add_coercions_of_record_to_moo obj lemmas status
777 {status with GrafiteTypes.proof_status = GrafiteTypes.No_proof},
778 uri::new_lemmas@lemmas
780 match status.GrafiteTypes.proof_status with
781 GrafiteTypes.Intermediate _ ->
782 {status with GrafiteTypes.proof_status = GrafiteTypes.No_proof},uris
785 } and eval_executable = {ee_go = fun ~disambiguate_tactic ~disambiguate_command
786 ~disambiguate_macro opts status (text,prefix_len,ex) ->
788 | GrafiteAst.Tactic (_, Some tac, punct) ->
789 let tac = apply_tactic ~disambiguate_tactic (text,prefix_len,tac) in
790 let status = eval_tactical status (tactic_of_ast' tac) in
792 (punctuation_tactical_of_ast (text,prefix_len,punct)),[]
793 | GrafiteAst.Tactic (_, None, punct) ->
795 (punctuation_tactical_of_ast (text,prefix_len,punct)),[]
796 | GrafiteAst.NonPunctuationTactical (_, tac, punct) ->
799 (non_punctuation_tactical_of_ast (text,prefix_len,tac))
802 (punctuation_tactical_of_ast (text,prefix_len,punct)),[]
803 | GrafiteAst.Command (_, cmd) ->
804 eval_command.ec_go ~disambiguate_command opts status (text,prefix_len,cmd)
805 | GrafiteAst.Macro (loc, macro) ->
806 raise (Macro (loc,disambiguate_macro status (text,prefix_len,macro)))
808 } and eval_from_moo = {efm_go = fun status fname ->
810 ("",0,GrafiteAst.Executable (HExtlib.dummy_floc,
811 GrafiteAst.Command (HExtlib.dummy_floc,
814 let moo = GrafiteMarshal.load_moo fname in
817 let ast = ast_of_cmd ast in
820 ~disambiguate_tactic:(fun status _ (_,_,tactic) -> status,tactic)
821 ~disambiguate_command:(fun status (_,_,cmd) -> status,cmd)
822 ~disambiguate_macro:(fun _ _ -> assert false)
828 } and eval_ast = {ea_go = fun ~disambiguate_tactic ~disambiguate_command
829 ~disambiguate_macro ?(do_heavy_checks=false) status
832 let opts = { do_heavy_checks = do_heavy_checks ; } in
834 | GrafiteAst.Executable (_,ex) ->
835 eval_executable.ee_go ~disambiguate_tactic ~disambiguate_command
836 ~disambiguate_macro opts status (text,prefix_len,ex)
837 | GrafiteAst.Comment (_,c) -> eval_comment status (text,prefix_len,c),[]
840 let eval_ast = eval_ast.ea_go