X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Ftactics%2FvariousTactics.ml;h=d89f702fc071cb3fb732be9bba8bee5a4c2dd680;hb=4767ed3aba79ed1d06c6d4e2d195b77e5bd26db5;hp=bb5be64d8837a8592560ecaf7ef8a3f6072672e1;hpb=5930f13b2d863abbff240ffa985bcc064c7a5ab8;p=helm.git diff --git a/helm/ocaml/tactics/variousTactics.ml b/helm/ocaml/tactics/variousTactics.ml index bb5be64d8..d89f702fc 100644 --- a/helm/ocaml/tactics/variousTactics.ml +++ b/helm/ocaml/tactics/variousTactics.ml @@ -23,11 +23,41 @@ * http://cs.unibo.it/helm/. *) + +(* Da rimuovere, solo per debug*) +let print_context ctx = + let print_name = + function + Cic.Name n -> n + | Cic.Anonymous -> "_" + in + List.fold_right + (fun i (output,context) -> + let (newoutput,context') = + match i with + Some (n,Cic.Decl t) -> + print_name n ^ ":" ^ CicPp.pp t context ^ "\n", (Some n)::context + | Some (n,Cic.Def (t,None)) -> + print_name n ^ ":=" ^ CicPp.pp t context ^ "\n", (Some n)::context + | None -> + "_ ?= _\n", None::context + | Some (_,Cic.Def (_,Some _)) -> assert false + in + output^newoutput,context' + ) ctx ("",[]) + ;; + + + + + let search_theorems_in_context status = let (proof, goal) = status in let module C = Cic in let module R = CicReduction in let module S = CicSubstitution in + let module PET = ProofEngineTypes in + let module PT = PrimitiveTactics in prerr_endline "Entro in search_context"; let _,metasenv,_,_ = proof in let _,context,ty = CicUtil.lookup_meta goal metasenv in @@ -36,9 +66,9 @@ let search_theorems_in_context status = | hd::tl -> let res = try - Some (PrimitiveTactics.apply_tac status ~term:(C.Rel n)) + Some (PET.apply_tactic (PT.apply_tac ~term:(C.Rel n)) status ) with - ProofEngineTypes.Fail _ -> None in + PET.Fail _ -> None in (match res with Some res -> res::(find (n+1) tl) | None -> find (n+1) tl) @@ -57,6 +87,7 @@ exception MaxDepth;; let depth = 3;; +(* let rec auto_tac_aux mqi_handle level proof goal = prerr_endline ("Entro in Auto_rec; level = " ^ (string_of_int level)); if level = 0 then @@ -76,18 +107,8 @@ else match meta_inf with Some (ey, ty) -> prerr_endline ("CURRENT GOAL = " ^ (CicPp.ppterm ty)); - (* - let time1 = Unix.gettimeofday() in - let _, all_paths = NewConstraints.prefixes 5 ty in - let time2 = Unix.gettimeofday() in - prerr_endline - (Printf.sprintf "TEMPO DI CALCOLO = %1.3f" (time2 -. time1) ); - prerr_endline - ("ALL PATHS: n = " ^ string_of_int - (List.length all_paths)); - prerr_endline (NewConstraints.pp_prefixes all_paths); - *) - (* if the goal does not have a sort Prop we return the + prerr_endline ("CURRENT HYP = " ^ (fst (print_context ey))); + (* if the goal does not have a sort Prop we return the current proof and a list containing the goal *) let ty_sort = CicTypeChecker.type_of_aux' metasenv ey ty in if CicReduction.are_convertible @@ -128,27 +149,105 @@ prerr_endline ("GOALLIST = " ^ string_of_int (List.length goallist)); | None -> proof ;; -let auto_tac mqi_handle (proof,goal) = +let auto_tac mqi_handle = + let module PET = ProofEngineTypes in + let auto_tac mqi_handle (proof,goal) = prerr_endline "Entro in Auto"; try let proof = auto_tac_aux mqi_handle depth proof goal in -prerr_endline "AUTO_TAC HA FINITO"; - (proof,[]) + prerr_endline "AUTO_TAC HA FINITO"; + (proof,[]) with | MaxDepth -> assert false (* this should happens only if depth is 0 above *) | NotApplicableTheorem -> prerr_endline("No applicable theorem"); - raise (ProofEngineTypes.Fail "No Applicable theorem");; + raise (ProofEngineTypes.Fail "No Applicable theorem") + in + PET.mk_tactic (auto_tac mqi_handle) +;; + +*) + +(**** ESPERIMENTO ************************) + +let new_search_theorems f proof goal depth gtl = + let local_choices = f (proof,goal) + in + List.map + (function (proof, goallist) -> + (proof, (List.map (function g -> (g,depth)) goallist)@gtl)) + local_choices +;; + +exception NoOtherChoices;; + +let rec auto_new mqi_handle = function + [] -> raise NoOtherChoices + | (proof, [])::tl -> (proof, [])::tl + | (proof, (goal,0)::gtl)::tl -> auto_new mqi_handle tl + | (proof, (goal,depth)::gtl)::tl -> + let _,metasenv,_,_ = proof in + let meta_inf = + (try + let (_, ey ,ty) = CicUtil.lookup_meta goal metasenv in + Some (ey, ty) + with _ -> None) in + match meta_inf with + Some (ey, ty) -> + prerr_endline ("CURRENT GOAL = " ^ (CicPp.ppterm ty)); + prerr_endline ("CURRENT HYP = " ^ (fst (print_context ey))); + let local_choices = + new_search_theorems + search_theorems_in_context proof goal (depth-1) gtl in + let global_choices = + new_search_theorems + (TacticChaser.searchTheorems mqi_handle) + proof goal (depth-1) gtl in + let all_choices = + local_choices@global_choices@tl in + let sorting_list (_,g1) (_,g2) = + let l1 = List.length g1 in + let l2 = List.length g2 in + if (l1 = l2 && not(l1 = 0)) then + (snd(List.nth g2 0)) - (snd(List.nth g1 0)) + else l1 - l2 in + let reorder = + List.stable_sort sorting_list all_choices + in + auto_new mqi_handle reorder + | None -> auto_new mqi_handle ((proof,gtl)::tl) +;; + + +let auto_tac mqi_handle = +(* CicMetaSubst.reset_counters (); *) + let auto_tac mqi_handle (proof,goal) = + prerr_endline "Entro in Auto"; + try + let (proof,_)::_ = auto_new mqi_handle [(proof, [(goal,depth)])] in + prerr_endline "AUTO_TAC HA FINITO"; +(* CicMetaSubst.print_counters (); *) + (proof,[]) + with + | NoOtherChoices -> + prerr_endline("Auto failed"); + raise (ProofEngineTypes.Fail "No Applicable theorem") + in + ProofEngineTypes.mk_tactic (auto_tac mqi_handle) +;; (* TODO se ce n'e' piu' di una, prende la prima che trova... sarebbe meglio chiedere: find dovrebbe restituire una lista di hyp (?) da passare all'utonto con una funzione di callback che restituisce la (sola) hyp da applicare *) -let assumption_tac status = +let assumption_tac = + let module PET = ProofEngineTypes in + let assumption_tac status = let (proof, goal) = status in let module C = Cic in let module R = CicReduction in let module S = CicSubstitution in + let module PT = PrimitiveTactics in let _,metasenv,_,_ = proof in let _,context,ty = CicUtil.lookup_meta goal metasenv in let rec find n = function @@ -163,8 +262,10 @@ let assumption_tac status = (CicTypeChecker.type_of_aux' metasenv context (S.lift n t)) ty) -> n | _ -> find (n+1) tl ) - | [] -> raise (ProofEngineTypes.Fail "Assumption: No such assumption") - in PrimitiveTactics.apply_tac status ~term:(C.Rel (find 1 context)) + | [] -> raise (PET.Fail "Assumption: No such assumption") + in PET.apply_tactic (PT.apply_tac ~term:(C.Rel (find 1 context))) status + in + PET.mk_tactic assumption_tac ;; (* ANCORA DA DEBUGGARE *) @@ -175,42 +276,46 @@ exception AllSelectedTermsMustBeConvertible;; e li aggiunga nel context, poi si conta la lunghezza di questo nuovo contesto e si lifta di tot... COSA SIGNIFICA TUTTO CIO'?????? *) -let generalize_tac - ?(mk_fresh_name_callback = FreshNamesGenerator.mk_fresh_name) - terms status -= - let (proof, goal) = status in - let module C = Cic in - let module P = PrimitiveTactics in - let module T = Tacticals in - let _,metasenv,_,_ = proof in - let _,context,ty = CicUtil.lookup_meta goal metasenv in - let typ = - match terms with - [] -> assert false - | he::tl -> - (* We need to check that all the convertibility of all the terms *) - List.iter - (function t -> - if not (CicReduction.are_convertible context he t) then - raise AllSelectedTermsMustBeConvertible - ) tl ; - (CicTypeChecker.type_of_aux' metasenv context he) - in - T.thens - ~start: - (P.cut_tac - (C.Prod( - (mk_fresh_name_callback metasenv context C.Anonymous typ), - typ, - (ProofEngineReduction.replace_lifting_csc 1 - ~equality:(==) - ~what:terms - ~with_what:(List.map (function _ -> C.Rel 1) terms) - ~where:ty) - ))) - ~continuations: [(P.apply_tac ~term:(C.Rel 1)) ; T.id_tac] - status +let generalize_tac + ?(mk_fresh_name_callback = FreshNamesGenerator.mk_fresh_name) terms + = + let module PET = ProofEngineTypes in + let generalize_tac mk_fresh_name_callback terms status = + let (proof, goal) = status in + let module C = Cic in + let module P = PrimitiveTactics in + let module T = Tacticals in + let _,metasenv,_,_ = proof in + let _,context,ty = CicUtil.lookup_meta goal metasenv in + let typ = + match terms with + [] -> assert false + | he::tl -> + (* We need to check that all the convertibility of all the terms *) + List.iter + (function t -> + if not (CicReduction.are_convertible context he t) then + raise AllSelectedTermsMustBeConvertible + ) tl ; + (CicTypeChecker.type_of_aux' metasenv context he) + in + PET.apply_tactic + (T.thens + ~start: + (P.cut_tac + (C.Prod( + (mk_fresh_name_callback metasenv context C.Anonymous ~typ:typ), + typ, + (ProofEngineReduction.replace_lifting_csc 1 + ~equality:(==) + ~what:terms + ~with_what:(List.map (function _ -> C.Rel 1) terms) + ~where:ty) + ))) + ~continuations: [(P.apply_tac ~term:(C.Rel 1)) ; T.id_tac]) + status + in + PET.mk_tactic (generalize_tac mk_fresh_name_callback terms) ;;