+++ /dev/null
-(* Copyright (C) 2004, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-(* $Id$ *)
-
-open Printf
-
-let nonvar uri = not (UriManager.uri_is_var uri)
-
-module Constr = MetadataConstraints
-
-exception Goal_is_not_an_equation
-
-let debug = false
-let debug_print s = if debug then prerr_endline (Lazy.force s)
-
-let ( ** ) x y = int_of_float ((float_of_int x) ** (float_of_int y))
-
-let signature_of_hypothesis context =
- List.fold_left
- (fun set hyp ->
- match hyp with
- | None -> set
- | Some (_, Cic.Decl t)
- | Some (_, Cic.Def (t, _)) ->
- Constr.UriManagerSet.union set (Constr.constants_of t))
- Constr.UriManagerSet.empty context
-
-let intersect uris siguris =
- let set1 = List.fold_right Constr.UriManagerSet.add uris Constr.UriManagerSet.empty in
- let set2 =
- List.fold_right Constr.UriManagerSet.add siguris Constr.UriManagerSet.empty
- in
- let inter = Constr.UriManagerSet.inter set1 set2 in
- List.filter (fun s -> Constr.UriManagerSet.mem s inter) uris
-
-(* Profiling code
-let at_most =
- let profiler = CicUtil.profile "at_most" in
- fun ~dbd ~where uri -> profiler.profile (Constr.at_most ~dbd ~where) uri
-
-let sigmatch =
- let profiler = CicUtil.profile "sigmatch" in
- fun ~dbd ~facts ~where signature ->
- profiler.profile (MetadataConstraints.sigmatch ~dbd ~facts ~where) signature
-*)
-let at_most = Constr.at_most
-let sigmatch = MetadataConstraints.sigmatch
-
-let filter_uris_forward ~dbd (main, constants) uris =
- let main_uris =
- match main with
- | None -> []
- | Some (main, types) -> main :: types
- in
- let full_signature =
- List.fold_right Constr.UriManagerSet.add main_uris constants
- in
- List.filter (at_most ~dbd ~where:`Statement full_signature) uris
-
-let filter_uris_backward ~dbd ~facts signature uris =
- let siguris =
- List.map snd
- (sigmatch ~dbd ~facts ~where:`Statement signature)
- in
- intersect uris siguris
-
-let compare_goal_list proof goal1 goal2 =
- let _,metasenv,_,_ = proof in
- let (_, ey1, ty1) = CicUtil.lookup_meta goal1 metasenv in
- let (_, ey2, ty2) = CicUtil.lookup_meta goal2 metasenv in
- let ty_sort1,_ =
- CicTypeChecker.type_of_aux' metasenv ey1 ty1 CicUniv.empty_ugraph
- in
- let ty_sort2,_ =
- CicTypeChecker.type_of_aux' metasenv ey2 ty2 CicUniv.empty_ugraph
- in
- let prop1 =
- let b,_ =
- CicReduction.are_convertible
- ey1 (Cic.Sort Cic.Prop) ty_sort1 CicUniv.empty_ugraph
- in
- if b then 0
- else 1
- in
- let prop2 =
- let b,_ =
- CicReduction.are_convertible
- ey2 (Cic.Sort Cic.Prop) ty_sort2 CicUniv.empty_ugraph
- in
- if b then 0
- else 1
- in
- prop1 - prop2
-
-(* experimental_hint is a version of hint for experimental
- purposes. It uses auto_tac_verbose instead of auto tac.
- Auto_tac verbose also returns a substitution - for the moment
- as a function from cic to cic, to be changed into an association
- list in the future -. This substitution is used to build a
- hash table of the inspected goals with their associated proofs.
- The cose is a cut and paste of the previous one: at the end
- of the experimentation we shall make a choice. *)
-
-let close_with_types s metasenv context =
- Constr.UriManagerSet.fold
- (fun e bag ->
- let t = CicUtil.term_of_uri e in
- let ty, _ =
- CicTypeChecker.type_of_aux' metasenv context t CicUniv.empty_ugraph
- in
- Constr.UriManagerSet.union bag (Constr.constants_of ty))
- s s
-
-let close_with_constructors s metasenv context =
- Constr.UriManagerSet.fold
- (fun e bag ->
- let t = CicUtil.term_of_uri e in
- match t with
- Cic.MutInd (uri,_,_)
- | Cic.MutConstruct (uri,_,_,_) ->
- (match fst (CicEnvironment.get_obj CicUniv.empty_ugraph uri) with
- Cic.InductiveDefinition(tl,_,_,_) ->
- snd
- (List.fold_left
- (fun (i,s) (_,_,_,cl) ->
- let _,s =
- List.fold_left
- (fun (j,s) _ ->
- let curi = UriManager.uri_of_uriref uri i (Some j) in
- j+1,Constr.UriManagerSet.add curi s) (1,s) cl in
- (i+1,s)) (0,bag) tl)
- | _ -> assert false)
- | _ -> bag)
- s s
-
-(* Profiling code
-let apply_tac_verbose =
- let profiler = CicUtil.profile "apply_tac_verbose" in
- fun ~term status -> profiler.profile (PrimitiveTactics.apply_tac_verbose ~term) status
-
-let sigmatch =
- let profiler = CicUtil.profile "sigmatch" in
- fun ~dbd ~facts ?(where=`Conclusion) signature -> profiler.profile (Constr.sigmatch ~dbd ~facts ~where) signature
-
-let cmatch' =
- let profiler = CicUtil.profile "cmatch'" in
- fun ~dbd ~facts signature -> profiler.profile (Constr.cmatch' ~dbd ~facts) signature
-*)
-let apply_tac_verbose = PrimitiveTactics.apply_tac_verbose
-let cmatch' = Constr.cmatch'
-
-let signature_of_goal ~(dbd:HMysql.dbd) ((proof, goal) as _status) =
- let (_, metasenv, _, _) = proof in
- let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
- let main, sig_constants = Constr.signature_of ty in
- let set = signature_of_hypothesis context in
- let set =
- match main with
- None -> set
- | Some (main,l) ->
- List.fold_right Constr.UriManagerSet.add (main::l) set in
- let set = Constr.UriManagerSet.union set sig_constants in
- let all_constants_closed = close_with_types set metasenv context in
- let uris =
- sigmatch ~dbd ~facts:false ~where:`Statement (None,all_constants_closed) in
- let uris = List.filter nonvar (List.map snd uris) in
- let uris = List.filter Hashtbl_equiv.not_a_duplicate uris in
- uris
-
-let equations_for_goal ~(dbd:HMysql.dbd) ((proof, goal) as _status) =
-(* let to_string set =
- "{ " ^
- (String.concat ", "
- (Constr.UriManagerSet.fold
- (fun u l -> (UriManager.string_of_uri u)::l) set []))
- ^ " }"
- in *)
- let (_, metasenv, _, _) = proof in
- let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
- let main, sig_constants = Constr.signature_of ty in
-(* Printf.printf "\nsig_constants: %s\n\n" (to_string sig_constants); *)
-(* match main with *)
-(* None -> raise Goal_is_not_an_equation *)
-(* | Some (m,l) -> *)
- let m, l =
- let eq_URI =
- let us = UriManager.string_of_uri (LibraryObjects.eq_URI ()) in
- UriManager.uri_of_string (us ^ "#xpointer(1/1)")
- in
- match main with
- | None -> eq_URI, []
- | Some (m, l) when UriManager.eq m eq_URI -> m, l
- | Some (m, l) -> eq_URI, []
- in
- Printf.printf "\nSome (m, l): %s, [%s]\n\n"
- (UriManager.string_of_uri m)
- (String.concat "; " (List.map UriManager.string_of_uri l));
- (* if m == UriManager.uri_of_string HelmLibraryObjects.Logic.eq_XURI then ( *)
- let set = signature_of_hypothesis context in
- (* Printf.printf "\nsignature_of_hypothesis: %s\n\n" (to_string set); *)
- let set = Constr.UriManagerSet.union set sig_constants in
- let set = close_with_types set metasenv context in
- (* Printf.printf "\ndopo close_with_types: %s\n\n" (to_string set); *)
- let set = close_with_constructors set metasenv context in
- (* Printf.printf "\ndopo close_with_constructors: %s\n\n" (to_string set); *)
- let set = List.fold_right Constr.UriManagerSet.remove (m::l) set in
- let uris =
- sigmatch ~dbd ~facts:false ~where:`Statement (main,set) in
- let uris = List.filter nonvar (List.map snd uris) in
- let uris = List.filter Hashtbl_equiv.not_a_duplicate uris in
- uris
- (* ) *)
- (* else raise Goal_is_not_an_equation *)
-
-let experimental_hint
- ~(dbd:HMysql.dbd) ?(facts=false) ?signature ((proof, goal) as status) =
- let (_, metasenv, _, _) = proof in
- let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
- let (uris, (main, sig_constants)) =
- match signature with
- | Some signature ->
- (sigmatch ~dbd ~facts signature, signature)
- | None ->
- (cmatch' ~dbd ~facts ty, Constr.signature_of ty)
- in
- let uris = List.filter nonvar (List.map snd uris) in
- let uris = List.filter Hashtbl_equiv.not_a_duplicate uris in
- let types_constants =
- match main with
- | None -> Constr.UriManagerSet.empty
- | Some (main, types) ->
- List.fold_right Constr.UriManagerSet.add (main :: types)
- Constr.UriManagerSet.empty
- in
- let all_constants =
- let hyp_and_sug =
- Constr.UriManagerSet.union
- (signature_of_hypothesis context)
- sig_constants
- in
- let main =
- match main with
- | None -> Constr.UriManagerSet.empty
- | Some (main,_) ->
- let ty, _ =
- CicTypeChecker.type_of_aux'
- metasenv context (CicUtil.term_of_uri main) CicUniv.empty_ugraph
- in
- Constr.constants_of ty
- in
- Constr.UriManagerSet.union main hyp_and_sug
- in
-(* Constr.UriManagerSet.iter debug_print hyp_constants; *)
- let all_constants_closed = close_with_types all_constants metasenv context in
- let other_constants =
- Constr.UriManagerSet.diff all_constants_closed types_constants
- in
- debug_print (lazy "all_constants_closed");
- if debug then Constr.UriManagerSet.iter (fun s -> debug_print (lazy (UriManager.string_of_uri s))) all_constants_closed;
- debug_print (lazy "other_constants");
- if debug then Constr.UriManagerSet.iter (fun s -> debug_print (lazy (UriManager.string_of_uri s))) other_constants;
- let uris =
- let pow = 2 ** (Constr.UriManagerSet.cardinal other_constants) in
- if ((List.length uris < pow) or (pow <= 0))
- then begin
- debug_print (lazy "MetadataQuery: large sig, falling back to old method");
- filter_uris_forward ~dbd (main, other_constants) uris
- end else
- filter_uris_backward ~dbd ~facts (main, other_constants) uris
- in
- let rec aux = function
- | [] -> []
- | uri :: tl ->
- (let status' =
- try
- let (subst,(proof, goal_list)) =
- (* debug_print (lazy ("STO APPLICANDO" ^ uri)); *)
- apply_tac_verbose
- ~term:(CicUtil.term_of_uri uri)
- status
- in
- let goal_list =
- List.stable_sort (compare_goal_list proof) goal_list
- in
- Some (uri, (subst,(proof, goal_list)))
- with ProofEngineTypes.Fail _ -> None
- in
- match status' with
- | None -> aux tl
- | Some status' -> status' :: aux tl)
- in
- List.stable_sort
- (fun (_,(_, (_, goals1))) (_,(_, (_, goals2))) ->
- Pervasives.compare (List.length goals1) (List.length goals2))
- (aux uris)
-
-let new_experimental_hint
- ~(dbd:HMysql.dbd) ?(facts=false) ?signature ~universe
- ((proof, goal) as status)
-=
- let (_, metasenv, _, _) = proof in
- let (_, context, ty) = CicUtil.lookup_meta goal metasenv in
- let (uris, (main, sig_constants)) =
- match signature with
- | Some signature ->
- (sigmatch ~dbd ~facts signature, signature)
- | None ->
- (cmatch' ~dbd ~facts ty, Constr.signature_of ty) in
- let universe =
- List.fold_left
- (fun res u -> Constr.UriManagerSet.add u res)
- Constr.UriManagerSet.empty universe in
- let uris =
- List.fold_left
- (fun res (_,u) -> Constr.UriManagerSet.add u res)
- Constr.UriManagerSet.empty uris in
- let uris = Constr.UriManagerSet.inter uris universe in
- let uris = Constr.UriManagerSet.elements uris in
- let rec aux = function
- | [] -> []
- | uri :: tl ->
- (let status' =
- try
- let (subst,(proof, goal_list)) =
- (* debug_print (lazy ("STO APPLICANDO" ^ uri)); *)
- apply_tac_verbose
- ~term:(CicUtil.term_of_uri uri)
- status
- in
- let goal_list =
- List.stable_sort (compare_goal_list proof) goal_list
- in
- Some (uri, (subst,(proof, goal_list)))
- with ProofEngineTypes.Fail _ -> None
- in
- match status' with
- | None -> aux tl
- | Some status' -> status' :: aux tl)
- in
- List.stable_sort
- (fun (_,(_, (_, goals1))) (_,(_, (_, goals2))) ->
- Pervasives.compare (List.length goals1) (List.length goals2))
- (aux uris)
-
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