(TypeCheckerFailure (lazy ("Malformed inductive constructor type " ^
(UriManager.string_of_uri uri))))
-(* Main function to checks the correctness of a mutual *)
-(* inductive block definition. This is the function *)
-(* exported to the proof-engine. *)
-and typecheck_mutual_inductive_defs ~logger uri (itl,_,indparamsno) ugraph =
- let module U = UriManager in
- (* let's check if the arity of the inductive types are well *)
- (* formed *)
- let ugrap1 = List.fold_left
- (fun ugraph (_,_,x,_) -> let _,ugraph' =
- type_of ~logger x ugraph in ugraph')
- ugraph itl in
-
- (* let's check if the types of the inductive constructors *)
- (* are well formed. *)
- (* In order not to use type_of_aux we put the types of the *)
- (* mutual inductive types at the head of the types of the *)
- (* constructors using Prods *)
- let len = List.length itl in
- let tys =
- List.map (fun (n,_,ty,_) -> Some (Cic.Name n,(Cic.Decl ty))) itl in
- let _,ugraph2 =
- List.fold_right
- (fun (_,_,_,cl) (i,ugraph) ->
- let ugraph'' =
- List.fold_left
- (fun ugraph (name,te) ->
- let debruijnedte = debruijn uri len te in
- let augmented_term =
- List.fold_right
- (fun (name,_,ty,_) i -> Cic.Prod (Cic.Name name, ty, i))
- itl debruijnedte
- in
- let _,ugraph' = type_of ~logger augmented_term ugraph in
- (* let's check also the positivity conditions *)
- if
- not
- (are_all_occurrences_positive tys uri indparamsno i 0 len
- debruijnedte)
- then
- begin
- prerr_endline (UriManager.string_of_uri uri);
- prerr_endline (string_of_int (List.length tys));
- raise
- (TypeCheckerFailure
- (lazy ("Non positive occurence in " ^ U.string_of_uri uri))) end
- else
- ugraph'
- ) ugraph cl in
- (i + 1),ugraph''
- ) itl (1,ugrap1)
- in
- ugraph2
-
-(* Main function to checks the correctness of a mutual *)
-(* inductive block definition. *)
-and check_mutual_inductive_defs uri obj ugraph =
- match obj with
- Cic.InductiveDefinition (itl, params, indparamsno, _) ->
- typecheck_mutual_inductive_defs uri (itl,params,indparamsno) ugraph
- | _ ->
- raise (TypeCheckerFailure (
- lazy ("Unknown mutual inductive definition:" ^
- UriManager.string_of_uri uri)))
-
(* the boolean h means already protected *)
(* args is the list of arguments the type of the constructor that may be *)
(* found in head position must be applied to. *)
(match R.whd ~subst context ty_he with
| C.Prod (n,s,t) ->
(*
- prerr_endline (NCicPp.ppterm ~context s ^ " - Vs - " ^ NCicPp.ppterm
+ prerr_endline (NCicPp.ppterm ~subst ~metasenv ~context s ^ " - Vs - "
+ ^ NCicPp.ppterm ~subst ~metasenv
~context ty_arg);
- prerr_endline (NCicPp.ppterm ~context (S.subst ~avoid_beta_redexes:true arg t));
+ prerr_endline (NCicPp.ppterm ~subst ~metasenv ~context (S.subst ~avoid_beta_redexes:true arg t));
*)
if R.are_convertible ~subst ~metasenv context ty_arg s then
aux (S.subst ~avoid_beta_redexes:true arg t) tl
(TypeCheckerFailure
(lazy (Printf.sprintf
("Appl: wrong parameter-type, expected %s, found %s")
- (NCicPp.ppterm ~subst ~metasenv ~context ty_arg)
- (NCicPp.ppterm ~subst ~metasenv ~context s))))
+ (NCicPp.ppterm ~subst ~metasenv ~context s)
+ (NCicPp.ppterm ~subst ~metasenv ~context ty_arg))))
| _ ->
raise
(TypeCheckerFailure
cl
in
let lefts = fst (split_prods ~subst [] paramsno arity) in
- tys@lefts, len, cl'
+ lefts@tys, len, cl'
;;
exception DoesOccur;;
C.Prod (n,s,ty)
| C.LetIn (n,ty,t,bo) ->
let ty_t = typeof_aux context t in
+ let _ = typeof_aux context ty in
if not (R.are_convertible ~subst ~metasenv context ty ty_t) then
raise
(TypeCheckerFailure
in
typeof_aux context term
-and check_mutual_inductive_defs _ = ()
+and check_mutual_inductive_defs uri ~metasenv ~subst is_ind leftno tyl =
+ (* let's check if the arity of the inductive types are well formed *)
+ List.iter (fun (_,_,x,_) -> ignore (typeof ~subst ~metasenv [] x)) tyl;
+ (* let's check if the types of the inductive constructors are well formed. *)
+ let len = List.length tyl in
+ let tys = List.map (fun (_,n,ty,_) -> (n,(C.Decl ty))) tyl in
+ ignore
+ (List.fold_right
+ (fun (_,_,_,cl) i ->
+ List.iter
+ (fun (_,name,te) ->
+ let debruijnedte = debruijn uri len te in
+ ignore (typeof ~subst ~metasenv tys debruijnedte);
+ (* let's check also the positivity conditions *)
+ if false (*
+ not
+ (are_all_occurrences_positive tys uri indparamsno i 0 len
+ debruijnedte) *)
+ then
+ raise
+ (TypeCheckerFailure
+ (lazy ("Non positive occurence in "^NUri.string_of_uri uri))))
+ cl;
+ i + 1)
+ tyl 1)
and eat_lambdas ~subst ~metasenv context n te =
match (n, R.whd ~subst context te) with
" is a partial application of a fix")))
else
let rec_arg = List.nth tl rec_no in
- if not (is_really_smaller ~subst k rec_arg) then
+ if not (is_really_smaller ~subst ~metasenv k rec_arg) then
raise (NotGuarded (lazy
(NCicPp.ppterm ~context ~subst ~metasenv rec_arg ^ " not smaller")));
List.iter (aux k) tl
List.iter (aux k) args;
List.iter2
(fun p (_,_,bruijnedc) ->
- let rl = recursive_args ~subst c_ctx 0 len bruijnedc in
+ let rl = recursive_args ~subst ~metasenv c_ctx 0 len bruijnedc in
let p, k = get_new_safes ~subst k p rl in
aux k p)
pl cl
and guarded_by_constructors ~subst _ _ _ _ _ _ _ = assert false
-and recursive_args ~subst context n nn te =
+and recursive_args ~subst ~metasenv context n nn te =
match R.whd context te with
- | C.Rel _ -> []
+ | C.Rel _ | C.Appl _ -> []
| C.Prod (name,so,de) ->
(not (does_not_occur ~subst context n nn so)) ::
- (recursive_args ~subst ((name,(C.Decl so))::context) (n+1) (nn + 1) de)
- | _ -> raise (AssertFailure (lazy ("recursive_args")))
+ (recursive_args ~subst ~metasenv
+ ((name,(C.Decl so))::context) (n+1) (nn + 1) de)
+ | t ->
+ raise (AssertFailure (lazy ("recursive_args:" ^ NCicPp.ppterm ~subst
+ ~metasenv ~context:[] t)))
and get_new_safes ~subst (context, recfuns, x, safes as k) p rl =
match R.whd ~subst context p, rl with
split_prods ~subst ((name,(C.Decl so))::context) (n - 1) ta
| _ -> raise (AssertFailure (lazy "split_prods"))
-and is_really_smaller ~subst (context, recfuns, x, safes as k) te =
+and is_really_smaller ~subst ~metasenv (context, recfuns, x, safes as k) te =
match R.whd ~subst context te with
| C.Rel m when List.mem m safes -> true
| C.Rel _ -> false
(*CSC: sulla coda ci vogliono dei controlli? secondo noi no, ma *)
(*CSC: solo perche' non abbiamo trovato controesempi *)
(*TASSI: da capire soprattutto se he รจ un altro fix che non ha ridotto...*)
- is_really_smaller ~subst k he
+ is_really_smaller ~subst ~metasenv k he
| C.Const (Ref.Ref (_,_,Ref.Con _)) -> false
| C.Const (Ref.Ref (_,_,Ref.Fix _)) -> assert false
(*| C.Fix (_, fl) ->
| C.Rel m | C.Appl (C.Rel m :: _ ) when List.mem m safes || m = x ->
let isinductive, paramsno, tl, _, i = E.get_checked_indtys ref in
if not isinductive then
- List.for_all (is_really_smaller ~subst k) pl
+ List.for_all (is_really_smaller ~subst ~metasenv k) pl
else
let c_ctx,len,cl = fix_lefts_in_constrs ~subst uri paramsno tl i in
List.for_all2
(fun p (_,_,debruijnedte) ->
- let rl' = recursive_args ~subst c_ctx 0 len debruijnedte in
+ let rl'=recursive_args ~subst ~metasenv c_ctx 0 len debruijnedte in
let e, k = get_new_safes ~subst k p rl' in
- is_really_smaller ~subst k e)
+ is_really_smaller ~subst ~metasenv k e)
pl cl
- | _ -> List.for_all (is_really_smaller ~subst k) pl)
+ | _ -> List.for_all (is_really_smaller ~subst ~metasenv k) pl)
and returns_a_coinductive ~subst context ty =
match R.whd ~subst context ty with
assert (metasenv = [] && subst = []);
match kind with
| C.Constant (_,_,Some te,ty,_) ->
+(*
prerr_endline ("TY: " ^ NCicPp.ppterm ~subst ~metasenv ~context:[] ty);
prerr_endline ("BO: " ^ NCicPp.ppterm ~subst ~metasenv ~context:[] te);
+*)
let _ = typeof ~subst ~metasenv [] ty in
let ty_te = typeof ~subst ~metasenv [] te in
- prerr_endline "XXXX";
+(* prerr_endline "XXXX"; *)
if not (R.are_convertible ~subst ~metasenv [] ty_te ty) then
raise (TypeCheckerFailure (lazy (Printf.sprintf
"the type of the body is not the one expected:\n%s\nvs\n%s"
(NCicPp.ppterm ~subst ~metasenv ~context:[] ty_te)
(NCicPp.ppterm ~subst ~metasenv ~context:[] ty))))
| C.Constant (_,_,None,ty,_) -> ignore (typeof ~subst ~metasenv [] ty)
- | C.Inductive _ as obj -> check_mutual_inductive_defs obj
+ | C.Inductive (is_ind, leftno, tyl, _) ->
+ check_mutual_inductive_defs uri ~metasenv ~subst is_ind leftno tyl
| C.Fixpoint (inductive,fl,_) ->
let types,kl,len =
List.fold_left
function [] -> [] | v::tl -> (k,v)::enum_from (k+1) tl
in
guarded_by_destructors
- ~subst ~metasenv context (enum_from (x+1) kl) m
+ ~subst ~metasenv context (enum_from (x+2) kl) m
end else
match returns_a_coinductive ~subst [] ty with
| None ->
projects / helm.git / blobdiff