status#set_stack gstatus
;;
+let case_tac lab status =
+ let gstatus =
+ match status#stack with
+ | [] -> assert false
+ | ([ loc ], t, [],`BranchTag) :: (g', t', k', tag) :: s
+ when is_fresh loc ->
+ let l_js = List.filter
+ (fun curloc ->
+ let _,_,metasenv,_,_ = status#obj in
+ match NCicUtils.lookup_meta (goal_of_loc curloc) metasenv with
+ Some s,_,_ when s = lab -> true
+ | _ -> false) ([loc] @+ g') in
+ ((l_js, t , [],`BranchTag)
+ :: (([ loc ] @+ g') @- l_js, t', k', tag) :: s)
+ | _ -> fail (lazy "can't use relative positioning here")
+ in
+ status#set_stack gstatus
+;;
+
let wildcard_tac status =
let gstatus =
match status#stack with
List.fold_left (fun status tac -> tac status) status l
;;
+
let compare_statuses ~past ~present =
let _,_,past,_,_ = past#obj in
let _,_,present,_,_ = present#obj in
((status#set_stack stack)#set_obj(sn:>lowtac_status)#obj)#set_estatus sn
;;
-let atomic_tac htac = distribute_tac (exec htac) ;;
+let atomic_tac htac : #tac_status as 'a -> 'a = distribute_tac (exec htac) ;;
+
+let repeat_tac t s =
+ let rec repeat t (status : #tac_status as 'a) : 'a =
+ try repeat t (t status)
+ with NTacStatus.Error _ -> status
+ in
+ atomic_tac (repeat t) s
+;;
+
let try_tac tac status =
try
let generalize0_tac args =
if args = [] then id_tac
- else exact_tac ("",0,Ast.Appl (Ast.Implicit :: args))
+ else exact_tac ("",0,Ast.Appl (Ast.Implicit `JustOne :: args))
;;
let select0_tac ~where:(wanted,hyps,where) ~job =
) s) ]
;;
+let cut_tac t =
+ block_tac [
+ exact_tac ("",0, Ast.Appl [Ast.Implicit `JustOne; Ast.Implicit `JustOne]);
+ branch_tac;
+ pos_tac [2]; exact_tac t;
+ shift_tac; pos_tac [1]; skip_tac;
+ merge_tac ]
+;;
+
+let lapply_tac (s,n,t) =
+ exact_tac (s,n, Ast.Appl [Ast.Implicit `JustOne; t])
+;;
+
let reduce_tac ~reduction ~where =
let change status t =
match reduction with
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));
+ exact_tac
+ ("",0,Ast.LetIn((Ast.Ident (name,None),None),w,Ast.Implicit `JustOne));
]
;;
-let apply_tac = exact_tac;;
+let apply_tac (s,n,t) =
+ let t = Ast.Appl [t; Ast.Implicit `Vector] in
+ exact_tac (s,n,t)
+;;
type indtyinfo = {
rightno: int;
}
;;
-let analyze_indty_tac ~what indtyref = distribute_tac (fun status goal ->
+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 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 leftno = List.length lefts in
let rightno = List.length rights in
indtyref := Some {
rightno = rightno; leftno = leftno; consno = consno;
exec id_tac status goal)
;;
-let elim_tac ~what ~where =
+let sort_of_goal_tac sortref = distribute_tac (fun status goal ->
+ let goalty = get_goalty status goal in
+ let status,sort = typeof status (ctx_of goalty) goalty in
+ let sort = fix_sorts sort in
+ let status, sort = term_of_cic_term status sort (ctx_of goalty) in
+ sortref := sort;
+ status)
+;;
+
+let elim_tac ~what:(txt,len,what) ~where =
+ let what = txt, len, Ast.Appl [what; Ast.Implicit `Vector] in
let indtyinfo = ref None in
- let sort = ref None in
- let compute_goal_sort_tac = distribute_tac (fun status goal ->
- let goalty = get_goalty status goal in
- let status, goalsort = typeof status (ctx_of goalty) goalty in
- sort := Some goalsort;
- exec id_tac status goal)
- in
+ let sort = ref (NCic.Rel 1) in
atomic_tac (block_tac [
analyze_indty_tac ~what indtyinfo;
(fun s -> select_tac
~where ~job:(`Substexpand ((HExtlib.unopt !indtyinfo).rightno+1)) true s);
- compute_goal_sort_tac;
+ sort_of_goal_tac sort;
(fun status ->
- let sort = HExtlib.unopt !sort in
let ity = HExtlib.unopt !indtyinfo in
let NReference.Ref (uri, _) = ity.reference in
- let status, sort = term_of_cic_term status sort (ctx_of sort) in
- let name = NUri.name_of_uri uri ^
- match sort with
- | NCic.Sort NCic.Prop -> "_ind"
- | NCic.Sort _ -> "_rect"
- | _ -> assert false
+ let name =
+ NUri.name_of_uri uri ^ "_" ^
+ snd (NCicElim.ast_of_sort
+ (match !sort with NCic.Sort x -> x | _ -> assert false))
in
- let holes =
- HExtlib.mk_list Ast.Implicit (ity.leftno+1+ ity.consno + ity.rightno) in
let eliminator =
let _,_,w = what in
- Ast.Appl(Ast.Ident(name,None)::holes @ [ w ])
+ Ast.Appl [ Ast.Ident (name,None) ; Ast.Implicit `Vector ; w ]
in
exact_tac ("",0,eliminator) status) ])
;;
-let rewrite_tac ~dir ~what:(_,_,what) ~where =
+let rewrite_tac ~dir ~what:(_,_,what) ~where status =
+ let sortref = ref (NCic.Rel 1) in
+ let status = sort_of_goal_tac sortref status in
+ let suffix = "_" ^ snd (NCicElim.ast_of_sort
+ (match !sortref with NCic.Sort x -> x | _ -> assert false))
+ in
let name =
- match dir with `LeftToRight -> "eq_elim_r" | `RightToLeft -> "eq_ind"
+ match dir with
+ `LeftToRight -> "eq" ^ suffix ^ "_r"
+ | `RightToLeft -> "eq" ^ suffix
in
block_tac
[ select_tac ~where ~job:(`Substexpand 1) true;
exact_tac
("",0,
- Ast.Appl(Ast.Ident(name,None)::HExtlib.mk_list Ast.Implicit 5 @
- [what]))]
+ Ast.Appl(Ast.Ident(name,None)::HExtlib.mk_list (Ast.Implicit `JustOne) 5@
+ [what]))] status
;;
let intro_tac name =
block_tac
[ exact_tac
("",0,(Ast.Binder (`Lambda,
- (Ast.Ident (name,None),None),Ast.Implicit)));
+ (Ast.Ident (name,None),None),Ast.Implicit `JustOne)));
if name = "_" then clear_tac [name] else id_tac ]
;;
instantiate status goal t
;;
-let cases_tac ~what ~where =
+let cases_tac ~what:(txt,len,what) ~where =
+ let what = txt, len, Ast.Appl [what; Ast.Implicit `Vector] in
let indtyinfo = ref None in
atomic_tac
(block_tac [
if name = "_clearme" then clear_tac ["_clearme"] else id_tac ]
;;
+let constructor ?(num=1) ~args status goal =
+ if num < 1 then fail (lazy "constructor numbers begin with 1");
+ let gty = get_goalty status goal in
+ let status, (r,_,_,_) = analyse_indty status gty in
+ let ref = NReference.mk_constructor num r in
+ let t =
+ if args = [] then Ast.NRef ref else
+ Ast.Appl (HExtlib.list_concat ~sep:[Ast.Implicit `Vector]
+ ([Ast.NRef ref] :: List.map (fun _,_,x -> [x]) args))
+ in
+ exec (apply_tac ("",0,t)) status goal
+;;
+
+let constructor_tac ?num ~args = distribute_tac (constructor ?num ~args);;
+
let assert0_tac (hyps,concl) = distribute_tac (fun status goal ->
let gty = get_goalty status goal in
let eq status ctx t1 t2 =
(status, (t,ty) :: l))
(status,[]) l
in
- let pt, metasenv, subst =
- Paramod.nparamod status metasenv subst (ctx_of gty) (NCic.Rel ~-1,t) l
- in
- let status = status#set_obj (n,h,metasenv,subst,o) in
- instantiate status goal (NTacStatus.mk_cic_term (ctx_of gty) pt)
+ match
+ NCicParamod.nparamod status metasenv subst (ctx_of gty) (NCic.Rel ~-1,t) l
+ with
+ | [] -> raise (NTacStatus.Error (lazy "no proof found",None))
+ | (pt, metasenv, subst)::_ ->
+ let status = status#set_obj (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