| _::tl, [] -> (false,C.Rel ~-1)::combine tl [] (* dummy term *)
| [],_::_ -> assert false
in
- let lefts, _ = HExtlib.split_nth (min j (List.length args)) args in
+ let lefts, _ = HExtlib.split_nth "NTC 1" (min j (List.length args)) args in
List.map (fun ((b,x),i) -> b && x = C.Rel (k-i))
(HExtlib.list_mapi (fun x i -> x,i) (combine acc lefts))
| t -> U.fold (fun _ k -> k+1) k aux acc t
(let rec f = function 0 -> [] | n -> true :: f (n-1) in f j) bos
;;
-(* if n < 0, then splits all prods from an arity, returning a sort *)
-let rec split_prods ~subst context n te =
- match (n, R.whd ~subst context te) with
- | (0, _) -> context,te
- | (n, C.Sort _) when n <= 0 -> context,te
- | (n, C.Prod (name,so,ta)) ->
- split_prods ~subst ((name,(C.Decl so))::context) (n - 1) ta
- | (_, _) -> raise (AssertFailure (lazy "split_prods"))
-;;
-
let debruijn uri number_of_types context =
let rec aux k t =
match t with
let t2 = R.whd ~subst ((name,C.Decl s)::context) t2 in
match t1, t2 with
| C.Sort _, C.Sort C.Prop -> t2
- | C.Sort (C.Type u1), C.Sort (C.Type u2) -> C.Sort (C.Type (u1@u2))
+ | C.Sort (C.Type u1), C.Sort (C.Type u2) ->
+ C.Sort (C.Type (NCicEnvironment.max u1 u2))
| C.Sort C.Prop,C.Sort (C.Type _) -> t2
| C.Meta (_,(_,(C.Irl 0 | C.Ctx []))), C.Sort _ -> t2
| C.Meta (_,(_,(C.Irl 0 | C.Ctx []))), C.Meta (i,(_,(C.Irl 0 | C.Ctx [])))
| C.Appl (C.Const (Ref.Ref (_,Ref.Ind _) as ref) :: _ ) as ty ->
let args = match ty with C.Appl (_::tl) -> tl | _ -> [] in
let _, leftno, itl, _, i = E.get_checked_indtys ref in
- let left_args,_ = HExtlib.split_nth leftno args in
+ let left_args,_ = HExtlib.split_nth "NTC 2" leftno args in
let _,_,_,cl = List.nth itl i in
List.map
(fun (rel,name,ty) -> rel, name, instantiate_parameters left_args ty) cl
(fun k x ->
if k = 0 then 0
else
- match R.whd context x with
+ match R.whd ~subst context x with
| C.Rel m when m = n - (indparamsno - k) -> k - 1
| _ -> raise (TypeCheckerFailure (lazy
("Argument "^string_of_int (indparamsno - k + 1) ^ " (of " ^
| C.Const (Ref.Ref (uri',Ref.Ind (true,0,_))) when NUri.eq uri' uri -> dummy
| C.Appl ((C.Const (Ref.Ref (uri',Ref.Ind (true,0,lno))))::tl)
when NUri.eq uri' uri ->
- let _, rargs = HExtlib.split_nth lno tl in
+ let _, rargs = HExtlib.split_nth "NTC 3" lno tl in
if rargs = [] then dummy else C.Appl (dummy :: rargs)
| t -> U.map (fun _ x->x) () subst_inductive_type_with_dummy t
in
are skipped because we already know that are_all_occurrences_positive
of uri in te. *)
let rec aux context n nn te =
- match R.whd context te with
+ match R.whd ~subst context te with
| t when t = dummy -> true
| C.Appl (te::rargs) when te = dummy ->
List.for_all (does_not_occur ~subst context n nn) rargs
aux context n nn (subst_inductive_type_with_dummy () te)
and strictly_positive ~subst context n nn indparamsno posuri te =
- match R.whd context te with
+ match R.whd ~subst context te with
| t when does_not_occur ~subst context n nn t -> true
| C.Rel _ when indparamsno = 0 -> true
| C.Appl ((C.Rel m)::tl) as reduct when m > n && m <= nn ->
let _,paramsno,tyl,_,i = E.get_checked_indtys r in
let _,name,ity,cl = List.nth tyl i in
let ok = List.length tyl = 1 in
- let params, arguments = HExtlib.split_nth paramsno tl in
+ let params, arguments = HExtlib.split_nth "NTC 4" paramsno tl in
let lifted_params = List.map (S.lift 1) params in
let cl =
List.map (fun (_,_,te) -> instantiate_parameters lifted_params te) cl
(* the inductive type indexes are s.t. n < x <= nn *)
and are_all_occurrences_positive ~subst context uri indparamsno i n nn te =
- match R.whd context te with
+ match R.whd ~subst context te with
| C.Appl ((C.Rel m)::tl) as reduct when m = i ->
check_homogeneous_call ~subst context indparamsno n uri reduct tl;
List.for_all (does_not_occur ~subst context n nn) tl
match R.whd ~subst context tycons with
| C.Const (Ref.Ref (_,Ref.Ind _)) -> C.Appl [S.lift liftno outty ; cons]
| C.Appl (C.Const (Ref.Ref (_,Ref.Ind _))::tl) ->
- let _,arguments = HExtlib.split_nth leftno tl in
+ let _,arguments = HExtlib.split_nth "NTC 5" leftno tl in
C.Appl (S.lift liftno outty::arguments@[cons])
| C.Prod (name,so,de) ->
let cons =
| t -> C.Appl [t ; C.Rel 1]
in
C.Prod (name,so, aux (liftno+1) ((name,(C.Decl so))::context) cons de)
- | _ -> raise (AssertFailure (lazy "type_of_branch"))
+ | t -> raise (AssertFailure
+ (lazy ("type_of_branch, the contructor has type: " ^ NCicPp.ppterm
+ ~metasenv:[] ~context:[] ~subst:[] t)))
in
aux 0 context cons tycons
;;
match List.nth context (n - 1) with
| (_,C.Decl ty) -> S.lift n ty
| (_,C.Def (_,ty)) -> S.lift n ty
- with Failure _ -> raise (TypeCheckerFailure (lazy "unbound variable")))
+ with Failure _ ->
+ raise (TypeCheckerFailure (lazy ("unbound variable " ^ string_of_int n
+ ^" under: " ^ NCicPp.ppcontext ~metasenv ~subst context))))
| C.Sort (C.Type [false,u]) -> C.Sort (C.Type [true, u])
| C.Sort (C.Type _) ->
raise (AssertFailure (lazy ("Cannot type an inferred type: "^
(PP.ppterm ~subst ~metasenv ~context ty)
(PP.ppterm ~subst ~metasenv ~context (C.Const r')))))
else
- try HExtlib.split_nth leftno tl
+ try HExtlib.split_nth "NTC 6" leftno tl
with
Failure _ ->
raise (TypeCheckerFailure (lazy (Printf.sprintf
=
match l with
| shift, C.Irl n ->
- let context = snd (HExtlib.split_nth shift context) in
+ let context = snd (HExtlib.split_nth "NTC 7" shift context) in
let rec compare = function
| 0,_,[] -> ()
| 0,_,_::_
compare (n,context,canonical_context)
| shift, lc_kind ->
(* we avoid useless lifting by shortening the context*)
- let l,context = (0,lc_kind), snd (HExtlib.split_nth shift context) in
+ let l,context = (0,lc_kind), snd (HExtlib.split_nth "NTC 8" shift context) in
let lifted_canonical_context =
let rec lift_metas i = function
| [] -> []
raise
(TypeCheckerFailure
(lazy (Printf.sprintf
- ("Appl: wrong application of %s: the parameter %s has type"^^
+ ("Appl: wrong application of %s: the argument %s has type"^^
"\n%s\nbut it should have type \n%s\nContext:\n%s\n")
(PP.ppterm ~subst ~metasenv ~context he)
(PP.ppterm ~subst ~metasenv ~context arg)
let eaten = List.length args_with_ty - res in
(C.Appl
(he::List.map fst
- (fst (HExtlib.split_nth eaten args_with_ty)))))))))
+ (fst (HExtlib.split_nth "NTC 9" eaten args_with_ty)))))))))
in
aux ty_he args_with_ty
and is_non_informative ~metasenv ~subst paramsno c =
let rec aux context c =
- match R.whd context c with
+ match R.whd ~subst context c with
| C.Prod (n,so,de) ->
let s = typeof ~metasenv ~subst context so in
s = C.Sort C.Prop && aux ((n,(C.Decl so))::context) de
| _ -> true in
- let context',dx = split_prods ~subst [] paramsno c in
+ let context',dx = NCicReduction.split_prods ~subst [] paramsno c in
aux context' dx
and check_mutual_inductive_defs uri ~metasenv ~subst leftno tyl =
ignore
(List.fold_right
(fun (it_relev,_,ty,cl) i ->
- let context,ty_sort = split_prods ~subst [] ~-1 ty in
- let sx_context_ty_rev,_ = HExtlib.split_nth leftno (List.rev context) in
+ let context,ty_sort = NCicReduction.split_prods ~subst [] ~-1 ty in
+ let sx_context_ty_rev,_ = HExtlib.split_nth "NTC 10" leftno (List.rev context) in
List.iter
(fun (k_relev,_,te) ->
- let _,k_relev = HExtlib.split_nth leftno k_relev in
+ let k_relev =
+ try snd (HExtlib.split_nth "NTC 11" leftno k_relev)
+ with Failure _ -> k_relev in
let te = debruijn uri len [] te in
- let context,te = split_prods ~subst tys leftno te in
+ let context,te = NCicReduction.split_prods ~subst tys leftno te in
let _,chopped_context_rev =
- HExtlib.split_nth (List.length tys) (List.rev context) in
+ HExtlib.split_nth "NTC 12" (List.length tys) (List.rev context) in
let sx_context_te_rev,_ =
- HExtlib.split_nth leftno chopped_context_rev in
+ HExtlib.split_nth "NTC 13" leftno chopped_context_rev in
(try
ignore (List.fold_left2
(fun context item1 item2 ->
let bo, context' =
eat_lambdas ~subst ~metasenv context (recno + 1 - j) bo in
let new_context_part,_ =
- HExtlib.split_nth (List.length context' - List.length context)
+ HExtlib.split_nth "NTC 14" (List.length context' - List.length context)
context' in
let k = List.fold_right shift_k new_context_part new_k in
let context, recfuns, x = k in
("Too many args for constructor: " ^ String.concat " "
(List.map (fun x-> PP.ppterm ~subst ~metasenv ~context x) args))))
in
- let _, args = HExtlib.split_nth paramsno tl in
+ let _, args = HExtlib.split_nth "NTC 15" paramsno tl in
analyse_instantiated_type rec_params args
| C.Appl ((C.Match (_,out,te,pl))::_)
| C.Match (_,out,te,pl) as t ->
aux context 0 nn false t
and recursive_args ~subst ~metasenv context n nn te =
- match R.whd context te with
+ match R.whd ~subst context te with
| C.Rel _ | C.Appl _ | C.Const _ -> []
| C.Prod (name,so,de) ->
(not (does_not_occur ~subst context n nn so)) ::
| (_,h1,_,_,C.Constant (_,_,_,ty,_)), Ref.Ref (_,Ref.Def h2) ->
if h1 <> h2 then error ();
ty
- | _ -> raise (AssertFailure (lazy "type_of_constant: environment/reference"))
+ | _ ->
+ raise (AssertFailure
+ (lazy ("type_of_constant: environment/reference: " ^
+ Ref.string_of_reference ref)))
and get_relevance ~metasenv ~subst context t args =
let ty = typeof ~subst ~metasenv context t in
let eaten = List.length args - res in
(C.Appl
(t::fst
- (HExtlib.split_nth eaten args))))))))
+ (HExtlib.split_nth "NTC 16" eaten args))))))))
in aux context ty args
;;
let _ = NCicReduction.set_get_relevance get_relevance;;
+
+let indent = ref 0;;
+let debug = true;;
+let logger =
+ let do_indent () = String.make !indent ' ' in
+ (function
+ | `Start_type_checking s ->
+ if debug then
+ prerr_endline (do_indent () ^ "Start: " ^ NUri.string_of_uri s);
+ incr indent
+ | `Type_checking_completed s ->
+ decr indent;
+ if debug then
+ prerr_endline (do_indent () ^ "End: " ^ NUri.string_of_uri s)
+ | `Type_checking_interrupted s ->
+ decr indent;
+ if debug then
+ prerr_endline (do_indent () ^ "Break: " ^ NUri.string_of_uri s)
+ | `Type_checking_failed s ->
+ decr indent;
+ if debug then
+ prerr_endline (do_indent () ^ "Fail: " ^ NUri.string_of_uri s)
+ | `Trust_obj s ->
+ if debug then
+ prerr_endline (do_indent () ^ "Trust: " ^ NUri.string_of_uri s))
+;;
+(* let _ = set_logger logger ;; *)
(* EOF *)
projects / helm.git / blobdiff