module Ast = CicNotationPt
let id_tac status = status ;;
-let print_tac message status = prerr_endline message; status ;;
+let print_tac print_status message status =
+ if print_status then pp_tac_status status;
+ prerr_endline message;
+ status
+;;
let dot_tac status =
let new_gstatus =
let compare_statuses ~past ~present =
let _,_,past,_,_ = past.pstatus in
let _,_,present,_,_ = present.pstatus in
- let closed =
- List.map fst (List.filter (fun (i,_) -> not (List.mem_assoc i present)) past)
- in
- let opened =
- List.map fst (List.filter (fun (i,_) -> not(List.mem_assoc i past)) present)
- in
- opened, closed
+ List.map fst (List.filter (fun (i,_) -> not(List.mem_assoc i past)) present),
+ List.map fst (List.filter (fun (i,_) -> not (List.mem_assoc i present)) past)
;;
let atomic_tac htac = distribute_tac (exec htac) ;;
+let try_tac tac status =
+ try
+ tac status
+ with NTacStatus.Error _ ->
+ status
+;;
+
+let first_tac tacl status =
+ let res = HExtlib.list_findopt
+ (fun tac _ ->
+ try Some (tac status) with
+ NTacStatus.Error _ -> None) tacl
+ in
+ match res with
+ | None -> raise (NTacStatus.Error (lazy("No tactic left")))
+ | Some x -> x
+;;
+
let exact_tac t = distribute_tac (fun status goal ->
let goalty = get_goalty status goal in
let status, t = disambiguate status t (Some goalty) (ctx_of goalty) in
instantiate status goal t)
;;
+let assumption status goal =
+ let gty = get_goalty status goal in
+ let context = ctx_of gty in
+ let (htac:NTacStatus.tactic) =
+ first_tac (List.map
+ (fun (name,_) ->
+ exact_tac ("",0,(Ast.Ident (name,None))))
+ context)
+ in
+ exec htac status goal
+;;
+
+let assumption_tac =
+ distribute_tac assumption
+;;
+
let find_in_context name context =
let rec aux acc = function
| [] -> raise Not_found
{ status with pstatus = n,h,metasenv,subst,o })
;;
-let force f s = Lazy.force f s;;
-
let generalize0_tac args =
if args = [] then id_tac
else exact_tac ("",0,Ast.Appl (Ast.Implicit :: args))
;;
-let select0_tac ~where:(wanted,_,where) ~job =
+let select0_tac ~where:(wanted,hyps,where) ~job =
let found, postprocess =
match job with
| `Substexpand argsno -> mk_in_scope, mk_out_scope argsno
| `Collect l -> (fun s t -> l := t::!l; mk_in_scope s t), mk_out_scope 1
+ | `ChangeWith f -> f,(fun s t -> s, t)
in
distribute_tac (fun status goal ->
let goalty = get_goalty status goal in
let path =
match where with None -> NCic.Implicit `Term | Some where -> where
in
- let status, newgoalty =
- select_term status ~found ~postprocess goalty (wanted,path)
+ let status, newgoalctx =
+ List.fold_right
+ (fun (name,d as entry) (status,ctx) ->
+ try
+ let path = List.assoc name hyps in
+ match d with
+ NCic.Decl ty ->
+ let status,ty =
+ select_term status ~found ~postprocess (mk_cic_term ctx ty)
+ (wanted,path) in
+ let status,ty = term_of_cic_term status ty ctx in
+ status,(name,NCic.Decl ty)::ctx
+ | NCic.Def (bo,ty) ->
+ let status,bo =
+ select_term status ~found ~postprocess (mk_cic_term ctx bo)
+ (wanted,path) in
+ let status,bo = term_of_cic_term status bo ctx in
+ status,(name,NCic.Def (bo,ty))::ctx
+ with
+ Not_found -> status, entry::ctx
+ ) (ctx_of goalty) (status,[])
in
+ let status, newgoalty =
+ select_term status ~found ~postprocess goalty (wanted,path) in
+ (* WARNING: the next two lines simply change the context of newgoalty
+ from the old to the new one. Otherwise mk_meta will do that herself,
+ calling relocate that calls delift. However, newgoalty is now
+ ?[out_scope] and thus the delift would trigger the special unification
+ case, which is wrong now :-( *)
+ let status,newgoalty = term_of_cic_term status newgoalty (ctx_of goalty) in
+ let newgoalty = mk_cic_term newgoalctx newgoalty in
+
let status, instance =
- mk_meta status (ctx_of newgoalty) (`Decl newgoalty)
+ mk_meta status newgoalctx (`Decl newgoalty)
in
instantiate status goal instance)
;;
let l = ref [] in
block_tac [
select_tac ~where ~job:(`Collect l) true;
- force (lazy (distribute_tac (fun status goal ->
- let goalty = get_goalty status goal in
- (* unift (ctx_of goal) t s *)
- instantiate status goal
- (mk_cic_term (ctx_of goalty) (NCic.Appl [NCic.Implicit `Term ;
- term_of_cic_term (List.hd !l) (ctx_of goalty) ]))
- ))) ]
-;;
-
-
-let reopen status =
- let n,h,metasenv,subst,o = status.pstatus in
- let subst, newm =
- List.partition
- (function (_,(Some tag,_,_,_)) ->
- tag <> NCicMetaSubst.in_scope_tag &&
- not (NCicMetaSubst.is_out_scope_tag tag)
- | _ -> true)
- subst
- in
- let in_m, out_m =
- List.partition
- (function (_,(Some tag,_,_,_)) ->
- tag = NCicMetaSubst.in_scope_tag | _ -> assert false)
- newm
- in
- let metasenv = List.map (fun (i,(_,c,_,t)) -> i,(None,c,t)) in_m @ metasenv in
- let in_m = List.map fst in_m in
- let out_m = match out_m with [i] -> i | _ -> assert false in
- { status with pstatus = n,h,metasenv,subst,o }, in_m, out_m
+ print_tac true "ha selezionato?";
+ (fun s -> distribute_tac (fun status goal ->
+ let goalty = get_goalty status goal in
+ let status,canon,rest =
+ match !l with
+ [] ->
+ (match where with
+ _,_,(None,_,_) -> fail (lazy "No term to generalize")
+ | txt,txtlen,(Some what,_,_) ->
+ let status, what =
+ disambiguate status (txt,txtlen,what) None (ctx_of goalty)
+ in
+ status,what,[]
+ )
+ | he::tl -> status,he,tl in
+ let status =
+ List.fold_left
+ (fun s t -> unify s (ctx_of goalty) canon t) status rest in
+ let status, canon = term_of_cic_term status canon (ctx_of goalty) in
+ instantiate status goal
+ (mk_cic_term (ctx_of goalty) (NCic.Appl [NCic.Implicit `Term ; canon ]))
+ ) s) ]
;;
-let change ~where ~with_what status goal =
-assert false; (*
- let goalty = get_goalty status goal in
- let (wanted,_,where) = GrafiteDisambiguate.disambiguate_npattern where in
- let path =
- match where with None -> NCic.Implicit `Term | Some where -> where
- in
- let status, newgoalty = assert false (*
- select_term status 1 goalty (wanted,path)*) in
- let status, in_scope, out_scope = reopen status in
- let status = List.fold_left (exact with_what) status in_scope in
-
- let j,(n,cctx,bo,_) = out_scope in
- let _ = typeof status (ctx_of goalty) (Obj.magic (n,cctx,bo)) in
+let reduce_tac ~reduction ~where =
+ let change status t =
+ match reduction with
+ | `Normalize perform_delta ->
+ normalize status
+ ?delta:(if perform_delta then None else Some max_int) (ctx_of t) t
+ | `Whd perform_delta ->
+ whd status
+ ?delta:(if perform_delta then None else Some max_int) (ctx_of t) t
+ in
+ let where = GrafiteDisambiguate.disambiguate_npattern where in
+ select0_tac ~where ~job:(`ChangeWith change)
+;;
- let n,h,metasenv,subst,o = status.pstatus in
- let subst = out_scope :: subst in
- let status = { status with pstatus = n,h,metasenv,subst,o } in
+let change_tac ~where ~with_what =
+ let change status t =
+ let status, ww = disambiguate status with_what None (ctx_of t) in
+ let status = unify status (ctx_of t) t ww in
+ status, ww
+ in
+ let where = GrafiteDisambiguate.disambiguate_npattern where in
+ select0_tac ~where ~job:(`ChangeWith change)
+;;
- let status, instance =
- mk_meta status (ctx_of newgoalty) (`Decl newgoalty)
- in
- instantiate status goal instance
-*)
+let letin_tac ~where ~what:(_,_,w) name =
+ block_tac [
+ select_tac ~where ~job:(`Substexpand 1) true;
+ exact_tac ("",0,Ast.LetIn((Ast.Ident (name,None),None),w,Ast.Implicit));
+ ]
;;
-let change_tac ~where ~with_what = distribute_tac (change ~where ~with_what) ;;
let apply_tac = exact_tac;;
let analyze_indty_tac ~what indtyref = distribute_tac (fun status goal ->
let goalty = get_goalty status goal in
let status, what = disambiguate status what None (ctx_of goalty) in
- let ty_what = typeof status (ctx_of what) what in
- let r,consno,lefts,rights = analyse_indty status ty_what in
+ let status, ty_what = typeof status (ctx_of what) what in
+ let status, (r,consno,lefts,rights) = analyse_indty status ty_what in
let leftno = List.length rights in
let rightno = List.length rights in
indtyref := Some {
let sort = ref None in
let compute_goal_sort_tac = distribute_tac (fun status goal ->
let goalty = get_goalty status goal in
- let goalsort = typeof status (ctx_of goalty) goalty in
+ let status, goalsort = typeof status (ctx_of goalty) goalty in
sort := Some goalsort;
exec id_tac status goal)
in
atomic_tac (block_tac [
analyze_indty_tac ~what indtyinfo;
- force (lazy (select_tac
- ~where ~job:(`Substexpand ((HExtlib.unopt !indtyinfo).rightno+1)) true));
+ (fun s -> select_tac
+ ~where ~job:(`Substexpand ((HExtlib.unopt !indtyinfo).rightno+1)) true s);
compute_goal_sort_tac;
- force (lazy (
+ (fun status ->
let sort = HExtlib.unopt !sort in
let ity = HExtlib.unopt !indtyinfo in
let NReference.Ref (uri, _) = ity.reference in
+ let istatus, sort = term_of_cic_term status.istatus sort (ctx_of sort) in
+ let status = { status with istatus = istatus } in
let name = NUri.name_of_uri uri ^
- match term_of_cic_term sort (ctx_of sort) with
+ match sort with
| NCic.Sort NCic.Prop -> "_ind"
| NCic.Sort _ -> "_rect"
| _ -> assert false
let _,_,w = what in
Ast.Appl(Ast.Ident(name,None)::holes @ [ w ])
in
- exact_tac ("",0,eliminator))) ])
+ exact_tac ("",0,eliminator) status) ])
;;
let rewrite_tac ~dir ~what:(_,_,what) ~where =
let cases ~what status goal =
let gty = get_goalty status goal in
let status, what = disambiguate status what None (ctx_of gty) in
- let ty = typeof status (ctx_of what) what in
- let ref, consno, _, _ = analyse_indty status ty in
+ let status, ty = typeof status (ctx_of what) what in
+ let status, (ref, consno, _, _) = analyse_indty status ty in
+ let status, what = term_of_cic_term status what (ctx_of gty) in
let t =
- NCic.Match (ref,NCic.Implicit `Term, term_of_cic_term what (ctx_of gty),
+ NCic.Match (ref,NCic.Implicit `Term, what,
HExtlib.mk_list (NCic.Implicit `Term) consno)
in
let ctx = ctx_of gty in
atomic_tac
(block_tac [
analyze_indty_tac ~what indtyinfo;
- force (lazy (select_tac
- ~where ~job:(`Substexpand ((HExtlib.unopt !indtyinfo).rightno+1))true));
+ (fun s -> select_tac
+ ~where ~job:(`Substexpand ((HExtlib.unopt !indtyinfo).rightno+1))true s);
distribute_tac (cases ~what) ])
;;
cases_tac
~where:("",0,(None,[],None))
~what:("",0,Ast.Ident (name,None));
- if name = "_clearme" then clear_tac ["_clearme"] else id_tac ]
+ if name = "_clearme" then clear_tac ["_clearme"] else id_tac ]
+;;
+
+let assert0_tac (hyps,concl) = distribute_tac (fun status goal ->
+ let gty = get_goalty status goal in
+ let eq status ctx t1 t2 =
+ let status,t1 = disambiguate status t1 None ctx in
+ let status,t1 = apply_subst status ctx t1 in
+ let status,t1 = term_of_cic_term status t1 ctx in
+ let t2 = mk_cic_term ctx t2 in
+ let status,t2 = apply_subst status ctx t2 in
+ let status,t2 = term_of_cic_term status t2 ctx in
+ prerr_endline ("COMPARING: " ^ NCicPp.ppterm ~subst:[] ~metasenv:[] ~context:ctx t1 ^ " vs " ^ NCicPp.ppterm ~subst:[] ~metasenv:[] ~context:ctx t2);
+ assert (t1=t2);
+ status
+ in
+ let status,gty' = term_of_cic_term status gty (ctx_of gty) in
+ let status = eq status (ctx_of gty) concl gty' in
+ let status,_ =
+ List.fold_right2
+ (fun (id1,e1) ((id2,e2) as item) (status,ctx) ->
+ assert (id1=id2 || (prerr_endline (id1 ^ " vs " ^ id2); false));
+ match e1,e2 with
+ `Decl t1, NCic.Decl t2 ->
+ let status = eq status ctx t1 t2 in
+ status,item::ctx
+ | `Def (b1,t1), NCic.Def (b2,t2) ->
+ let status = eq status ctx t1 t2 in
+ let status = eq status ctx b1 b2 in
+ status,item::ctx
+ | _ -> assert false
+ ) hyps (ctx_of gty) (status,[])
+ in
+ exec id_tac status goal)
+;;
+
+let assert_tac seqs status =
+ match status.gstatus with
+ | [] -> assert false
+ | (g,_,_,_) :: s ->
+ assert (List.length g = List.length seqs);
+ (match seqs with
+ [] -> id_tac
+ | [seq] -> assert0_tac seq
+ | _ ->
+ block_tac
+ (branch_tac::
+ HExtlib.list_concat ~sep:[shift_tac]
+ (List.map (fun seq -> [assert0_tac seq]) seqs)@
+ [merge_tac])
+ ) status
+;;
+
+let auto ~params:(l,_) status goal =
+ let gty = get_goalty status goal in
+ let n,h,metasenv,subst,o = status.pstatus in
+ let status,t = term_of_cic_term status gty (ctx_of gty) in
+ let status, l =
+ List.fold_left
+ (fun (status, l) t ->
+ let status, t = disambiguate status t None (ctx_of gty) in
+ let status, ty = typeof status (ctx_of t) t in
+ let status, t = term_of_cic_term status t (ctx_of gty) in
+ let status, ty = term_of_cic_term status ty (ctx_of ty) in
+ (status, (t,ty) :: l))
+ (status,[]) l
+ in
+ let rdb = status.estatus in
+ let pt, metasenv, subst =
+ Paramod.nparamod rdb metasenv subst (ctx_of gty) (NCic.Rel ~-1,t) l
+ in
+ let status = { status with pstatus = n,h,metasenv,subst,o } in
+ instantiate status goal (NTacStatus.mk_cic_term (ctx_of gty) pt)
+;;
+
+let auto_tac ~params status =
+ distribute_tac (auto ~params) status
;;
projects / helm.git / blobdiff