raise (TypeCheckerFailure (lazy "Parameters number < left parameters number"))
;;
-let debrujin_constructor ?(cb=fun _ _ -> ()) uri number_of_types =
+let debrujin_constructor ?(cb=fun _ _ -> ()) ?(check_exp_named_subst=true) uri number_of_types context =
let rec aux k t =
let module C = Cic in
let res =
| C.Cast (te,ty) -> C.Cast (aux k te, aux k ty)
| C.Prod (n,s,t) -> C.Prod (n, aux k s, aux (k+1) t)
| C.Lambda (n,s,t) -> C.Lambda (n, aux k s, aux (k+1) t)
- | C.LetIn (n,s,t) -> C.LetIn (n, aux k s, aux (k+1) t)
+ | C.LetIn (n,s,ty,t) -> C.LetIn (n, aux k s, aux k ty, aux (k+1) t)
| C.Appl l -> C.Appl (List.map (aux k) l)
| C.Const (uri,exp_named_subst) ->
let exp_named_subst' =
in
C.Const (uri,exp_named_subst')
| C.MutInd (uri',tyno,exp_named_subst) when UriManager.eq uri uri' ->
- if exp_named_subst != [] then
+ if check_exp_named_subst && exp_named_subst != [] then
raise (TypeCheckerFailure
(lazy ("non-empty explicit named substitution is applied to "^
"a mutual inductive type which is being defined"))) ;
cb t res;
res
in
- aux 0
+ aux (List.length context)
;;
exception CicEnvironmentError;;
Failure _ -> assert false)
| C.Sort _
| C.Implicit _ -> true
- | C.Meta (_,l) ->
+ | C.Meta (mno,l) ->
List.fold_right
(fun x i ->
match x with
None -> i
| Some x -> i && does_not_occur ~subst context n nn x) l true &&
(try
- let (canonical_context,term,ty) = CicUtil.lookup_subst n subst in
+ let (canonical_context,term,ty) = CicUtil.lookup_subst mno subst in
does_not_occur ~subst context n nn (CicSubstitution.subst_meta l term)
with
CicUtil.Subst_not_found _ -> true)
does_not_occur ~subst context n nn so &&
does_not_occur ~subst ((Some (name,(C.Decl so)))::context) (n + 1) (nn + 1)
dest
- | C.LetIn (name,so,dest) ->
+ | C.LetIn (name,so,ty,dest) ->
does_not_occur ~subst context n nn so &&
- does_not_occur ~subst ((Some (name,(C.Def (so,None))))::context)
- (n + 1) (nn + 1) dest
+ does_not_occur ~subst context n nn ty &&
+ does_not_occur ~subst ((Some (name,(C.Def (so,ty))))::context)
+ (n + 1) (nn + 1) dest
| C.Appl l ->
List.fold_right (fun x i -> i && does_not_occur ~subst context n nn x) l true
| C.Var (_,exp_named_subst)
let len = List.length fl in
let n_plus_len = n + len in
let nn_plus_len = nn + len in
- let tys =
- List.map (fun (n,_,ty,_) -> Some (C.Name n,(Cic.Decl ty))) fl
+ let tys,_ =
+ List.fold_left
+ (fun (types,len) (n,_,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl
in
List.fold_right
(fun (_,_,ty,bo) i ->
let len = List.length fl in
let n_plus_len = n + len in
let nn_plus_len = nn + len in
- let tys =
- List.map (fun (n,ty,_) -> Some (C.Name n,(Cic.Decl ty))) fl
+ let tys,_ =
+ List.fold_left
+ (fun (types,len) (n,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl
in
List.fold_right
(fun (_,ty,bo) i ->
| C.Lambda (name,so,ta) ->
C.Lambda (name, subst_inductive_type_with_dummy_mutind so,
subst_inductive_type_with_dummy_mutind ta)
+ | C.LetIn (name,so,ty,ta) ->
+ C.LetIn (name, subst_inductive_type_with_dummy_mutind so,
+ subst_inductive_type_with_dummy_mutind ty,
+ subst_inductive_type_with_dummy_mutind ta)
| C.Appl tl ->
C.Appl (List.map subst_inductive_type_with_dummy_mutind tl)
| C.MutCase (uri,i,outtype,term,pl) ->
exp_named_subst
in
C.Const (uri,exp_named_subst')
+ | C.Var (uri,exp_named_subst) ->
+ let exp_named_subst' =
+ List.map
+ (function (uri,t) -> (uri,subst_inductive_type_with_dummy_mutind t))
+ exp_named_subst
+ in
+ C.Var (uri,exp_named_subst')
| C.MutInd (uri,typeno,exp_named_subst) ->
let exp_named_subst' =
List.map
| t -> t
in
match CicReduction.whd context te with
+(*
C.Appl ((C.MutInd (uri',0,_))::tl) when UriManager.eq uri' uri -> true
+*)
+ C.Appl ((C.MutInd (uri',_,_))::tl) when UriManager.eq uri' uri -> true
| C.MutInd (uri',0,_) when UriManager.eq uri' uri -> true
- | C.Prod (C.Anonymous,source,dest) ->
- strictly_positive context n nn
- (subst_inductive_type_with_dummy_mutind source) &&
- weakly_positive ((Some (C.Anonymous,(C.Decl source)))::context)
- (n + 1) (nn + 1) uri dest
| C.Prod (name,source,dest) when
- does_not_occur ((Some (name,(C.Decl source)))::context) 0 n dest ->
+ does_not_occur ((Some (name,(C.Decl source)))::context) 0 1 dest ->
(* dummy abstraction, so we behave as in the anonimous case *)
strictly_positive context n nn
(subst_inductive_type_with_dummy_mutind source) &&
- weakly_positive ((Some (name,(C.Decl source)))::context)
+ weakly_positive ((Some (name,(C.Decl source)))::context)
(n + 1) (nn + 1) uri dest
| C.Prod (name,source,dest) ->
- does_not_occur context n nn
- (subst_inductive_type_with_dummy_mutind source)&&
- weakly_positive ((Some (name,(C.Decl source)))::context)
- (n + 1) (nn + 1) uri dest
+ does_not_occur context n nn
+ (subst_inductive_type_with_dummy_mutind source)&&
+ weakly_positive ((Some (name,(C.Decl source)))::context)
+ (n + 1) (nn + 1) uri dest
| _ ->
raise (TypeCheckerFailure (lazy "Malformed inductive constructor type"))
let module C = Cic in
let module U = UriManager in
match CicReduction.whd context te with
- C.Rel _ -> true
+ | t when does_not_occur context n nn t -> true
+ | C.Rel _ -> true
| C.Cast (te,ty) ->
(*CSC: bisogna controllare ty????*)
strictly_positive context n nn te
strictly_positive ((Some (name,(C.Decl so)))::context) (n+1) (nn+1) ta
| C.Appl ((C.Rel m)::tl) when m > n && m <= nn ->
List.fold_right (fun x i -> i && does_not_occur context n nn x) tl true
- | C.Appl ((C.MutInd (uri,i,exp_named_subst))::tl) ->
+ | C.Appl ((C.MutInd (uri,i,exp_named_subst))::_)
+ | (C.MutInd (uri,i,exp_named_subst)) as t ->
+ let tl = match t with C.Appl (_::tl) -> tl | _ -> [] in
let (ok,paramsno,ity,cl,name) =
let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- match o with
- C.InductiveDefinition (tl,_,paramsno,_) ->
- let (name,_,ity,cl) = List.nth tl i in
- (List.length tl = 1, paramsno, ity, cl, name)
- | _ ->
- raise (TypeCheckerFailure
- (lazy ("Unknown inductive type:" ^ U.string_of_uri uri)))
- in
- let (params,arguments) = split tl paramsno in
- let lifted_params = List.map (CicSubstitution.lift 1) params in
- let cl' =
+ match o with
+ C.InductiveDefinition (tl,_,paramsno,_) ->
+ let (name,_,ity,cl) = List.nth tl i in
+ (List.length tl = 1, paramsno, ity, cl, name)
+ (* (true, paramsno, ity, cl, name) *)
+ | _ ->
+ raise
+ (TypeCheckerFailure
+ (lazy ("Unknown inductive type:" ^ U.string_of_uri uri)))
+ in
+ let (params,arguments) = split tl paramsno in
+ let lifted_params = List.map (CicSubstitution.lift 1) params in
+ let cl' =
List.map
- (fun (_,te) ->
- instantiate_parameters lifted_params
- (CicSubstitution.subst_vars exp_named_subst te)
- ) cl
- in
+ (fun (_,te) ->
+ instantiate_parameters lifted_params
+ (CicSubstitution.subst_vars exp_named_subst te)
+ ) cl
+ in
ok &&
- List.fold_right
+ List.fold_right
(fun x i -> i && does_not_occur context n nn x)
arguments true &&
- (*CSC: MEGAPATCH3 (sara' quella giusta?)*)
- List.fold_right
+ List.fold_right
(fun x i ->
- i &&
- weakly_positive
- ((Some (C.Name name,(Cic.Decl ity)))::context) (n+1) (nn+1) uri
- x
+ i &&
+ weakly_positive
+ ((Some (C.Name name,(Cic.Decl ity)))::context) (n+1) (nn+1) uri
+ x
) cl' true
- | t -> does_not_occur context n nn t
-
+ | t -> false
+
(* the inductive type indexes are s.t. n < x <= nn *)
and are_all_occurrences_positive context uri indparamsno i n nn te =
let module C = Cic in
raise (TypeCheckerFailure
(lazy ("Non-positive occurence in mutual inductive definition(s) [3]"^
UriManager.string_of_uri uri)))
- | C.Prod (C.Anonymous,source,dest) ->
- strictly_positive context n nn source &&
- are_all_occurrences_positive
- ((Some (C.Anonymous,(C.Decl source)))::context) uri indparamsno
- (i+1) (n + 1) (nn + 1) dest
| C.Prod (name,source,dest) when
- does_not_occur ((Some (name,(C.Decl source)))::context) 0 n dest ->
+ does_not_occur ((Some (name,(C.Decl source)))::context) 0 1 dest ->
(* dummy abstraction, so we behave as in the anonimous case *)
strictly_positive context n nn source &&
are_all_occurrences_positive
let ugraph'' =
List.fold_left
(fun ugraph (name,te) ->
- let debrujinedte = debrujin_constructor uri len te in
+ let debrujinedte = debrujin_constructor uri len [] te in
let augmented_term =
List.fold_right
(fun (name,_,ty,_) i -> Cic.Prod (Cic.Name name, ty, i))
(are_all_occurrences_positive tys uri indparamsno i 0 len
debrujinedte)
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)))
+ (lazy ("Non positive occurence in " ^ U.string_of_uri uri))) end
else
ugraph'
) ugraph cl in
and recursive_args context n nn te =
let module C = Cic in
- match CicReduction.whd context te with
- C.Rel _ -> []
- | C.Var _
- | C.Meta _
- | C.Sort _
- | C.Implicit _
- | C.Cast _ (*CSC ??? *) ->
- raise (AssertFailure (lazy "3")) (* due to type-checking *)
- | C.Prod (name,so,de) ->
- (not (does_not_occur context n nn so)) ::
- (recursive_args ((Some (name,(C.Decl so)))::context) (n+1) (nn + 1) de)
- | C.Lambda _
- | C.LetIn _ ->
- raise (AssertFailure (lazy "4")) (* due to type-checking *)
- | C.Appl _ -> []
- | C.Const _ -> raise (AssertFailure (lazy "5"))
- | C.MutInd _
- | C.MutConstruct _
- | C.MutCase _
- | C.Fix _
- | C.CoFix _ -> raise (AssertFailure (lazy "6")) (* due to type-checking *)
+ match CicReduction.whd context te with
+ C.Rel _
+ | C.MutInd _ -> []
+ | C.Var _
+ | C.Meta _
+ | C.Sort _
+ | C.Implicit _
+ | C.Cast _ (*CSC ??? *) ->
+ raise (AssertFailure (lazy "3")) (* due to type-checking *)
+ | C.Prod (name,so,de) ->
+ (not (does_not_occur context n nn so)) ::
+ (recursive_args ((Some (name,(C.Decl so)))::context) (n+1) (nn + 1) de)
+ | C.Lambda _
+ | C.LetIn _ ->
+ raise (AssertFailure (lazy "4")) (* due to type-checking *)
+ | C.Appl _ -> []
+ | C.Const _ -> raise (AssertFailure (lazy "5"))
+ | C.MutConstruct _
+ | C.MutCase _
+ | C.Fix _
+ | C.CoFix _ -> raise (AssertFailure (lazy "6")) (* due to type-checking *)
-and get_new_safes ~subst context p c rl safes n nn x =
+and get_new_safes ~subst context p rl safes n nn x =
let module C = Cic in
let module U = UriManager in
let module R = CicReduction in
- match (R.whd ~subst context c, R.whd ~subst context p, rl) with
- (C.Prod (_,so,ta1), C.Lambda (name,_,ta2), b::tl) ->
- (* we are sure that the two sources are convertible because we *)
- (* have just checked this. So let's go along ... *)
- let safes' =
- List.map (fun x -> x + 1) safes
- in
- let safes'' =
- if b then 1::safes' else safes'
- in
- get_new_safes ~subst ((Some (name,(C.Decl so)))::context)
- ta2 ta1 tl safes'' (n+1) (nn+1) (x+1)
- | (C.Prod _, (C.MutConstruct _ as e), _)
- | (C.Prod _, (C.Rel _ as e), _)
- | (C.MutInd _, e, [])
- | (C.Appl _, e, []) -> (e,safes,n,nn,x,context)
- | (c,p,l) ->
- (* CSC: If the next exception is raised, it just means that *)
- (* CSC: the proof-assistant allows to use very strange things *)
- (* CSC: as a branch of a case whose type is a Prod. In *)
- (* CSC: particular, this means that a new (C.Prod, x,_) case *)
- (* CSC: must be considered in this match. (e.g. x = MutCase) *)
+ match R.whd ~subst context p, rl with
+ | C.Lambda (name,so,ta), b::tl ->
+ let safes = List.map (fun x -> x + 1) safes in
+ let safes = if b then 1::safes else safes in
+ get_new_safes ~subst ((Some (name,(C.Decl so)))::context)
+ ta tl safes (n+1) (nn+1) (x+1)
+ | C.MutConstruct _ as e, _
+ | (C.Rel _ as e), _
+ | e, [] -> (e,safes,n,nn,x,context)
+ | p,_::_ ->
raise
(AssertFailure (lazy
- (Printf.sprintf "Get New Safes: c=%s ; p=%s"
- (CicPp.ppterm c) (CicPp.ppterm p))))
+ (Printf.sprintf "Get New Safes: p=%s" (CicPp.ppterm p))))
and split_prods ~subst context n te =
let module C = Cic in
| (n, te) ->
raise (AssertFailure (lazy (sprintf "9 (%d, %s)" n (CicPp.ppterm te))))
-(*CSC: Tutto quello che segue e' l'intuzione di luca ;-) *)
-and check_is_really_smaller_arg ~subst context n nn kl x safes te =
- (*CSC: forse la whd si puo' fare solo quando serve veramente. *)
- (*CSC: cfr guarded_by_destructors *)
+and specialize_inductive_type ~logger ~subst ~metasenv context t =
+ let ty,_= type_of_aux' ~logger ~subst metasenv context t CicUniv.oblivion_ugraph in
+ match CicReduction.whd ~subst context ty with
+ | Cic.MutInd (uri,_,exp)
+ | Cic.Appl (Cic.MutInd (uri,_,exp) :: _) as ty ->
+ let args = match ty with Cic.Appl (_::tl) -> tl | _ -> [] in
+ let o,_ = CicEnvironment.get_obj CicUniv.oblivion_ugraph uri in
+ (match o with
+ | Cic.InductiveDefinition (tl,_,paramsno,_) ->
+ let left_args,_ = HExtlib.split_nth paramsno args in
+ List.map (fun (name, isind, arity, cl) ->
+ let arity = CicSubstitution.subst_vars exp arity in
+ let arity = instantiate_parameters left_args arity in
+ let cl =
+ List.map
+ (fun (id,ty) ->
+ let ty = CicSubstitution.subst_vars exp ty in
+ id, instantiate_parameters left_args ty)
+ cl
+ in
+ name, isind, arity, cl)
+ tl
+ | _ -> assert false)
+ | _ -> assert false
+
+and check_is_really_smaller_arg
+ ~logger ~metasenv ~subst rec_uri rec_uri_len context n nn kl x safes te
+=
let module C = Cic in
let module U = UriManager in
+ (*CSC: we could perform beta-iota(-zeta?) immediately, and
+ delta only on-demand when it fails without *)
match CicReduction.whd ~subst context te with
C.Rel m when List.mem m safes -> true
- | C.Rel _ -> false
- | C.Var _
- | C.Meta _
- | C.Sort _
- | C.Implicit _
- | C.Cast _
-(* | C.Cast (te,ty) ->
- check_is_really_smaller_arg ~subst n nn kl x safes te &&
- check_is_really_smaller_arg ~subst n nn kl x safes ty*)
-(* | C.Prod (_,so,ta) ->
- check_is_really_smaller_arg ~subst n nn kl x safes so &&
- check_is_really_smaller_arg ~subst (n+1) (nn+1) kl (x+1)
- (List.map (fun x -> x + 1) safes) ta*)
- | C.Prod _ -> raise (AssertFailure (lazy "10"))
- | C.Lambda (name,so,ta) ->
- check_is_really_smaller_arg ~subst context n nn kl x safes so &&
- check_is_really_smaller_arg ~subst ((Some (name,(C.Decl so)))::context)
- (n+1) (nn+1) kl (x+1) (List.map (fun x -> x + 1) safes) ta
- | C.LetIn (name,so,ta) ->
- check_is_really_smaller_arg ~subst context n nn kl x safes so &&
- check_is_really_smaller_arg ~subst ((Some (name,(C.Def (so,None))))::context)
- (n+1) (nn+1) kl (x+1) (List.map (fun x -> x + 1) safes) ta
- | C.Appl (he::_) ->
- (*CSC: sulla coda ci vogliono dei controlli? secondo noi no, ma *)
- (*CSC: solo perche' non abbiamo trovato controesempi *)
- check_is_really_smaller_arg ~subst context n nn kl x safes he
- | C.Appl [] -> raise (AssertFailure (lazy "11"))
+ | C.Rel _
+ | C.MutConstruct _
| C.Const _
- | C.MutInd _ -> raise (AssertFailure (lazy "12"))
- | C.MutConstruct _ -> false
+ | C.Var _ -> false
+ | C.Appl (he::_) ->
+ check_is_really_smaller_arg rec_uri rec_uri_len
+ ~logger ~metasenv ~subst context n nn kl x safes he
+ | C.Lambda (name,ty,ta) ->
+ check_is_really_smaller_arg rec_uri rec_uri_len
+ ~logger ~metasenv ~subst (Some (name,Cic.Decl ty)::context)
+ (n+1) (nn+1) kl (x+1) (List.map (fun n -> n+1) safes) ta
| C.MutCase (uri,i,outtype,term,pl) ->
(match term with
- C.Rel m when List.mem m safes || m = x ->
- let (tys,len,isinductive,paramsno,cl) =
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- match o with
- C.InductiveDefinition (tl,_,paramsno,_) ->
- let tys =
- List.map
- (fun (n,_,ty,_) -> Some (Cic.Name n,(Cic.Decl ty))) tl
- in
- let (_,isinductive,_,cl) = List.nth tl i in
- let cl' =
- List.map
- (fun (id,ty) ->
- (id, snd (split_prods ~subst tys paramsno ty))) cl
- in
- (tys,List.length tl,isinductive,paramsno,cl')
- | _ ->
- raise (TypeCheckerFailure
- (lazy ("Unknown mutual inductive definition:" ^
- UriManager.string_of_uri uri)))
- in
- if not isinductive then
- List.fold_right
- (fun p i ->
- i && check_is_really_smaller_arg ~subst context n nn kl x safes p)
- pl true
- else
- let pl_and_cl =
- try
- List.combine pl cl
- with
- Invalid_argument _ ->
- raise (TypeCheckerFailure (lazy "not enough patterns"))
- in
- List.fold_right
- (fun (p,(_,c)) i ->
- let rl' =
- let debrujinedte = debrujin_constructor uri len c in
- recursive_args tys 0 len debrujinedte
- in
- let (e,safes',n',nn',x',context') =
- get_new_safes ~subst context p c rl' safes n nn x
- in
- i &&
- check_is_really_smaller_arg ~subst context' n' nn' kl x' safes' e
- ) pl_and_cl true
- | C.Appl ((C.Rel m)::tl) when List.mem m safes || m = x ->
- let (tys,len,isinductive,paramsno,cl) =
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- match o with
- C.InductiveDefinition (tl,_,paramsno,_) ->
- let (_,isinductive,_,cl) = List.nth tl i in
- let tys =
- List.map (fun (n,_,ty,_) ->
- Some(Cic.Name n,(Cic.Decl ty))) tl
- in
- let cl' =
- List.map
- (fun (id,ty) ->
- (id, snd (split_prods ~subst tys paramsno ty))) cl
- in
- (tys,List.length tl,isinductive,paramsno,cl')
- | _ ->
- raise (TypeCheckerFailure
- (lazy ("Unknown mutual inductive definition:" ^
- UriManager.string_of_uri uri)))
- in
- if not isinductive then
- List.fold_right
- (fun p i ->
- i && check_is_really_smaller_arg ~subst context n nn kl x safes p)
- pl true
- else
- let pl_and_cl =
- try
- List.combine pl cl
- with
- Invalid_argument _ ->
- raise (TypeCheckerFailure (lazy "not enough patterns"))
- in
- (*CSC: supponiamo come prima che nessun controllo sia necessario*)
- (*CSC: sugli argomenti di una applicazione *)
- List.fold_right
- (fun (p,(_,c)) i ->
- let rl' =
- let debrujinedte = debrujin_constructor uri len c in
- recursive_args tys 0 len debrujinedte
- in
- let (e, safes',n',nn',x',context') =
- get_new_safes ~subst context p c rl' safes n nn x
- in
- i &&
- check_is_really_smaller_arg ~subst context' n' nn' kl x' safes' e
- ) pl_and_cl true
+ | C.Rel m | C.Appl ((C.Rel m)::_) when List.mem m safes || m = x ->
+ let tys =
+ specialize_inductive_type ~logger ~subst ~metasenv context term
+ in
+ let tys_ctx =
+ List.map (fun (name,_,ty,_) -> Some (Cic.Name name, Cic.Decl ty)) tys
+ in
+ let _,isinductive,_,cl = List.nth tys i in
+ if not isinductive then
+ List.for_all
+ (check_is_really_smaller_arg rec_uri rec_uri_len
+ ~logger ~metasenv ~subst context n nn kl x safes)
+ pl
+ else
+ List.for_all2
+ (fun p (_,c) ->
+ let rec_params =
+ let c =
+ debrujin_constructor ~check_exp_named_subst:false
+ rec_uri rec_uri_len context c in
+ let len_ctx = List.length context in
+ recursive_args (context@tys_ctx) len_ctx (len_ctx+rec_uri_len) c
+ in
+ let (e, safes',n',nn',x',context') =
+ get_new_safes ~subst context p rec_params safes n nn x
+ in
+ check_is_really_smaller_arg rec_uri rec_uri_len
+ ~logger ~metasenv ~subst context' n' nn' kl x' safes' e
+ ) pl cl
| _ ->
- List.fold_right
- (fun p i ->
- i && check_is_really_smaller_arg ~subst context n nn kl x safes p
- ) pl true
+ List.for_all
+ (check_is_really_smaller_arg
+ rec_uri rec_uri_len ~logger ~metasenv ~subst
+ context n nn kl x safes) pl
)
| C.Fix (_, fl) ->
let len = List.length fl in
let n_plus_len = n + len
and nn_plus_len = nn + len
and x_plus_len = x + len
- and tys = List.map (fun (n,_,ty,_) -> Some (C.Name n,(C.Decl ty))) fl
- and safes' = List.map (fun x -> x + len) safes in
- List.fold_right
- (fun (_,_,ty,bo) i ->
- i &&
- check_is_really_smaller_arg ~subst (tys@context) n_plus_len nn_plus_len kl
- x_plus_len safes' bo
- ) fl true
- | C.CoFix (_, fl) ->
- let len = List.length fl in
- let n_plus_len = n + len
- and nn_plus_len = nn + len
- and x_plus_len = x + len
- and tys = List.map (fun (n,ty,_) -> Some (C.Name n,(C.Decl ty))) fl
+ and tys,_ =
+ List.fold_left
+ (fun (types,len) (n,_,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl
and safes' = List.map (fun x -> x + len) safes in
- List.fold_right
- (fun (_,ty,bo) i ->
- i &&
- check_is_really_smaller_arg ~subst (tys@context) n_plus_len nn_plus_len kl
+ List.for_all
+ (fun (_,_,_,bo) ->
+ check_is_really_smaller_arg
+ rec_uri rec_uri_len ~logger ~metasenv ~subst
+ (tys@context) n_plus_len nn_plus_len kl
x_plus_len safes' bo
- ) fl true
+ ) fl
+ | t ->
+ raise (AssertFailure (lazy ("An inhabitant of an inductive type in normal form cannot have this shape: " ^ CicPp.ppterm t)))
-and guarded_by_destructors ~subst context n nn kl x safes =
+and guarded_by_destructors
+ ~logger ~metasenv ~subst rec_uri rec_uri_len context n nn kl x safes t
+=
let module C = Cic in
let module U = UriManager in
- function
+ match CicReduction.whd ~subst context t with
C.Rel m when m > n && m <= nn -> false
| C.Rel m ->
- (match List.nth context (n-1) with
+ (match List.nth context (m-1) with
Some (_,C.Decl _) -> true
| Some (_,C.Def (bo,_)) ->
- guarded_by_destructors ~subst context m nn kl x safes
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes
(CicSubstitution.lift m bo)
| None -> raise (TypeCheckerFailure (lazy "Reference to deleted hypothesis"))
)
| C.Sort _
| C.Implicit _ -> true
| C.Cast (te,ty) ->
- guarded_by_destructors ~subst context n nn kl x safes te &&
- guarded_by_destructors ~subst context n nn kl x safes ty
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes te &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes ty
| C.Prod (name,so,ta) ->
- guarded_by_destructors ~subst context n nn kl x safes so &&
- guarded_by_destructors ~subst ((Some (name,(C.Decl so)))::context)
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes so &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst ((Some (name,(C.Decl so)))::context)
(n+1) (nn+1) kl (x+1) (List.map (fun x -> x + 1) safes) ta
| C.Lambda (name,so,ta) ->
- guarded_by_destructors ~subst context n nn kl x safes so &&
- guarded_by_destructors ~subst ((Some (name,(C.Decl so)))::context)
- (n+1) (nn+1) kl (x+1) (List.map (fun x -> x + 1) safes) ta
- | C.LetIn (name,so,ta) ->
- guarded_by_destructors ~subst context n nn kl x safes so &&
- guarded_by_destructors ~subst ((Some (name,(C.Def (so,None))))::context)
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes so &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst ((Some (name,(C.Decl so)))::context)
(n+1) (nn+1) kl (x+1) (List.map (fun x -> x + 1) safes) ta
+ | C.LetIn (name,so,ty,ta) ->
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes so &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes ty &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst ((Some (name,(C.Def (so,ty))))::context)
+ (n+1) (nn+1) kl (x+1) (List.map (fun x -> x + 1) safes) ta
| C.Appl ((C.Rel m)::tl) when m > n && m <= nn ->
let k = List.nth kl (m - n - 1) in
if not (List.length tl > k) then false
else
- List.fold_right
- (fun param i ->
- i && guarded_by_destructors ~subst context n nn kl x safes param
- ) tl true &&
- check_is_really_smaller_arg ~subst context n nn kl x safes (List.nth tl k)
- | C.Appl tl ->
- List.fold_right
- (fun t i -> i && guarded_by_destructors ~subst context n nn kl x safes t)
- tl true
+ List.for_all
+ (guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes) tl &&
+ check_is_really_smaller_arg
+ rec_uri rec_uri_len
+ ~logger ~metasenv ~subst context n nn kl x safes (List.nth tl k)
| C.Var (_,exp_named_subst)
| C.Const (_,exp_named_subst)
| C.MutInd (_,_,exp_named_subst)
| C.MutConstruct (_,_,_,exp_named_subst) ->
- List.fold_right
- (fun (_,t) i -> i && guarded_by_destructors ~subst context n nn kl x safes t)
- exp_named_subst true
+ List.for_all
+ (fun (_,t) -> guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes t)
+ exp_named_subst
| C.MutCase (uri,i,outtype,term,pl) ->
(match CicReduction.whd ~subst context term with
- C.Rel m when List.mem m safes || m = x ->
- let (tys,len,isinductive,paramsno,cl) =
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- match o with
- C.InductiveDefinition (tl,_,paramsno,_) ->
- let len = List.length tl in
- let (_,isinductive,_,cl) = List.nth tl i in
- let tys =
- List.map (fun (n,_,ty,_) ->
- Some(Cic.Name n,(Cic.Decl ty))) tl
- in
- let cl' =
- List.map
- (fun (id,ty) ->
- let debrujinedty = debrujin_constructor uri len ty in
- (id, snd (split_prods ~subst tys paramsno ty),
- snd (split_prods ~subst tys paramsno debrujinedty)
- )) cl
- in
- (tys,len,isinductive,paramsno,cl')
- | _ ->
- raise (TypeCheckerFailure
- (lazy ("Unknown mutual inductive definition:" ^
- UriManager.string_of_uri uri)))
+ | C.Rel m
+ | C.Appl ((C.Rel m)::_) as t when List.mem m safes || m = x ->
+ let tl = match t with C.Appl (_::tl) -> tl | _ -> [] in
+ List.for_all
+ (guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes)
+ tl &&
+ let tys =
+ specialize_inductive_type ~logger ~subst ~metasenv context t
in
- if not isinductive then
- guarded_by_destructors ~subst context n nn kl x safes outtype &&
- guarded_by_destructors ~subst context n nn kl x safes term &&
- (*CSC: manca ??? il controllo sul tipo di term? *)
- List.fold_right
- (fun p i ->
- i && guarded_by_destructors ~subst context n nn kl x safes p)
- pl true
- else
- let pl_and_cl =
- try
- List.combine pl cl
- with
- Invalid_argument _ ->
- raise (TypeCheckerFailure (lazy "not enough patterns"))
- in
- guarded_by_destructors ~subst context n nn kl x safes outtype &&
- (*CSC: manca ??? il controllo sul tipo di term? *)
- List.fold_right
- (fun (p,(_,c,brujinedc)) i ->
- let rl' = recursive_args tys 0 len brujinedc in
- let (e,safes',n',nn',x',context') =
- get_new_safes ~subst context p c rl' safes n nn x
- in
- i &&
- guarded_by_destructors ~subst context' n' nn' kl x' safes' e
- ) pl_and_cl true
- | C.Appl ((C.Rel m)::tl) when List.mem m safes || m = x ->
- let (tys,len,isinductive,paramsno,cl) =
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- match o with
- C.InductiveDefinition (tl,_,paramsno,_) ->
- let (_,isinductive,_,cl) = List.nth tl i in
- let tys =
- List.map
- (fun (n,_,ty,_) -> Some(Cic.Name n,(Cic.Decl ty))) tl
- in
- let cl' =
- List.map
- (fun (id,ty) ->
- (id, snd (split_prods ~subst tys paramsno ty))) cl
- in
- (tys,List.length tl,isinductive,paramsno,cl')
- | _ ->
- raise (TypeCheckerFailure
- (lazy ("Unknown mutual inductive definition:" ^
- UriManager.string_of_uri uri)))
+ let tys_ctx =
+ List.map
+ (fun (name,_,ty,_) -> Some (Cic.Name name, Cic.Decl ty)) tys
in
+ let _,isinductive,_,cl = List.nth tys i in
if not isinductive then
- guarded_by_destructors ~subst context n nn kl x safes outtype &&
- guarded_by_destructors ~subst context n nn kl x safes term &&
- (*CSC: manca ??? il controllo sul tipo di term? *)
- List.fold_right
- (fun p i ->
- i && guarded_by_destructors ~subst context n nn kl x safes p)
- pl true
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes outtype &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes term &&
+ List.for_all
+ (guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes)
+ pl
else
- let pl_and_cl =
- try
- List.combine pl cl
- with
- Invalid_argument _ ->
- raise (TypeCheckerFailure (lazy "not enough patterns"))
- in
- guarded_by_destructors ~subst context n nn kl x safes outtype &&
- (*CSC: manca ??? il controllo sul tipo di term? *)
- List.fold_right
- (fun t i ->
- i && guarded_by_destructors ~subst context n nn kl x safes t)
- tl true &&
- List.fold_right
- (fun (p,(_,c)) i ->
- let rl' =
- let debrujinedte = debrujin_constructor uri len c in
- recursive_args tys 0 len debrujinedte
- in
- let (e, safes',n',nn',x',context') =
- get_new_safes ~subst context p c rl' safes n nn x
- in
- i &&
- guarded_by_destructors ~subst context' n' nn' kl x' safes' e
- ) pl_and_cl true
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes outtype &&
+ List.for_all2
+ (fun p (_,c) ->
+ let rec_params =
+ let c =
+ debrujin_constructor ~check_exp_named_subst:false
+ rec_uri rec_uri_len context c in
+ let len_ctx = List.length context in
+ recursive_args (context@tys_ctx) len_ctx (len_ctx+rec_uri_len) c
+ in
+ let (e, safes',n',nn',x',context') =
+ get_new_safes ~subst context p rec_params safes n nn x
+ in
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context' n' nn' kl x' safes' e
+ ) pl cl
| _ ->
- guarded_by_destructors ~subst context n nn kl x safes outtype &&
- guarded_by_destructors ~subst context n nn kl x safes term &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes outtype &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes term &&
(*CSC: manca ??? il controllo sul tipo di term? *)
List.fold_right
- (fun p i -> i && guarded_by_destructors ~subst context n nn kl x safes p)
+ (fun p i -> i && guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes p)
pl true
)
- | C.Fix (_, fl) ->
+ | C.Appl (C.Fix (fixno, fl)::_) | C.Fix (fixno,fl) as t->
+ let l = match t with C.Appl (_::tl) -> tl | _ -> [] in
let len = List.length fl in
- let n_plus_len = n + len
- and nn_plus_len = nn + len
- and x_plus_len = x + len
- and tys = List.map (fun (n,_,ty,_) -> Some (C.Name n,(C.Decl ty))) fl
- and safes' = List.map (fun x -> x + len) safes in
- List.fold_right
- (fun (_,_,ty,bo) i ->
- i && guarded_by_destructors ~subst context n nn kl x_plus_len safes' ty &&
- guarded_by_destructors ~subst (tys@context) n_plus_len nn_plus_len kl
- x_plus_len safes' bo
- ) fl true
+ let n_plus_len = n + len in
+ let nn_plus_len = nn + len in
+ let x_plus_len = x + len in
+ let tys,_ =
+ List.fold_left
+ (fun (types,len) (n,_,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl in
+ let safes' = List.map (fun x -> x + len) safes in
+ List.for_all
+ (guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes) l &&
+ snd (List.fold_left
+ (fun (fixno',i) (_,recno,ty,bo) ->
+ fixno'+1,
+ i &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x_plus_len safes' ty &&
+ if
+ fixno' = fixno &&
+ List.length l > recno &&
+ (*case where the recursive argument is already really_smaller *)
+ check_is_really_smaller_arg
+ rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes
+ (List.nth l recno)
+ then
+ let bo_without_lambdas,_,context =
+ eat_lambdas ~subst (tys@context) (recno+1) bo
+ in
+ (* we assume the formal argument to be safe *)
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context (n_plus_len+recno+1)
+ (nn_plus_len+recno+1) kl (x_plus_len+recno+1)
+ (1::List.map (fun x -> x+recno+1) safes')
+ bo_without_lambdas
+ else
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst (tys@context) n_plus_len nn_plus_len
+ kl x_plus_len safes' bo
+ ) (0,true) fl)
| C.CoFix (_, fl) ->
let len = List.length fl in
let n_plus_len = n + len
and nn_plus_len = nn + len
and x_plus_len = x + len
- and tys = List.map (fun (n,ty,_) -> Some (C.Name n,(C.Decl ty))) fl
+ and tys,_ =
+ List.fold_left
+ (fun (types,len) (n,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl
and safes' = List.map (fun x -> x + len) safes in
List.fold_right
(fun (_,ty,bo) i ->
i &&
- guarded_by_destructors ~subst context n nn kl x_plus_len safes' ty &&
- guarded_by_destructors ~subst (tys@context) n_plus_len nn_plus_len kl
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x_plus_len safes' ty &&
+ guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst (tys@context) n_plus_len nn_plus_len kl
x_plus_len safes' bo
) fl true
+ | C.Appl tl ->
+ List.fold_right
+ (fun t i -> i && guarded_by_destructors rec_uri rec_uri_len ~logger ~metasenv ~subst context n nn kl x safes t)
+ tl true
(* the boolean h means already protected *)
(* args is the list of arguments the type of the constructor that may be *)
let n_plus_len = n + len
and nn_plus_len = nn + len
(*CSC: Is a Decl of the ty ok or should I use Def of a Fix? *)
- and tys = List.map (fun (n,ty,_) -> Some (C.Name n,(C.Decl ty))) fl in
+ and tys,_ =
+ List.fold_left
+ (fun (types,len) (n,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl
+ in
List.fold_right
(fun (_,ty,bo) i ->
i && does_not_occur ~subst context n nn ty &&
let n_plus_len = n + len
and nn_plus_len = nn + len
(*CSC: Is a Decl of the ty ok or should I use Def of a Fix? *)
- and tys = List.map (fun (n,_,ty,_)-> Some (C.Name n,(C.Decl ty))) fl in
+ and tys,_ =
+ List.fold_left
+ (fun (types,len) (n,_,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl
+ in
List.fold_right
(fun (_,_,ty,bo) i ->
i && does_not_occur ~subst context n nn ty &&
let n_plus_len = n + len
and nn_plus_len = nn + len
(*CSC: Is a Decl of the ty ok or should I use Def of a Fix? *)
- and tys = List.map (fun (n,ty,_) -> Some (C.Name n,(C.Decl ty))) fl in
+ and tys,_ =
+ List.fold_left
+ (fun (types,len) (n,ty,_) ->
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ len+1)
+ ) ([],0) fl
+ in
List.fold_right
(fun (_,ty,bo) i ->
i && does_not_occur ~subst context n nn ty &&
let arity1 = CicReduction.whd ~subst context arity1 in
let rec check_allowed_sort_elimination_aux ugraph context arity2 need_dummy =
match arity1, CicReduction.whd ~subst context arity2 with
- (C.Prod (_,so1,de1), C.Prod (_,so2,de2)) ->
+ (C.Prod (name,so1,de1), C.Prod (_,so2,de2)) ->
let b,ugraph1 =
CicReduction.are_convertible ~subst ~metasenv context so1 so2 ugraph in
if b then
- check_allowed_sort_elimination ~subst ~metasenv ~logger context uri i
+ check_allowed_sort_elimination ~subst ~metasenv ~logger
+ ((Some (name,C.Decl so1))::context) uri i
need_dummy (C.Appl [CicSubstitution.lift 1 ind ; C.Rel 1]) de1 de2
ugraph1
else
[] -> []
| (Some (n,C.Decl t))::tl ->
(Some (n,C.Decl (S.subst_meta l (S.lift i t))))::(aux (i+1) tl)
- | (Some (n,C.Def (t,None)))::tl ->
- (Some (n,C.Def ((S.subst_meta l (S.lift i t)),None)))::(aux (i+1) tl)
| None::tl -> None::(aux (i+1) tl)
- | (Some (n,C.Def (t,Some ty)))::tl ->
- (Some (n,C.Def ((S.subst_meta l (S.lift i t)),Some (S.subst_meta l (S.lift i ty)))))::(aux (i+1) tl)
+ | (Some (n,C.Def (t,ty)))::tl ->
+ (Some (n,C.Def ((S.subst_meta l (S.lift i t)),S.subst_meta l (S.lift i ty))))::(aux (i+1) tl)
in
aux 1 canonical_context
in
match (t,ct) with
| _,None -> ugraph
| Some t,Some (_,C.Def (ct,_)) ->
+ (*CSC: the following optimization is to avoid a possibly expensive
+ reduction that can be easily avoided and that is quite
+ frequent. However, this is better handled using levels to
+ control reduction *)
+ let optimized_t =
+ match t with
+ Cic.Rel n ->
+ (try
+ match List.nth context (n - 1) with
+ Some (_,C.Def (te,_)) -> S.lift n te
+ | _ -> t
+ with
+ Failure _ -> t)
+ | _ -> t
+ in
+(*if t <> optimized_t && optimized_t = ct then prerr_endline "!!!!!!!!!!!!!!!"
+else if t <> optimized_t then prerr_endline ("@@ " ^ CicPp.ppterm t ^ " ==> " ^ CicPp.ppterm optimized_t ^ " <==> " ^ CicPp.ppterm ct);*)
let b,ugraph1 =
- R.are_convertible ~subst ~metasenv context t ct ugraph
+ R.are_convertible ~subst ~metasenv context optimized_t ct ugraph
in
if not b then
raise
(try
match List.nth context (n - 1) with
Some (_,C.Decl t) -> S.lift n t,ugraph
- | Some (_,C.Def (_,Some ty)) -> S.lift n ty,ugraph
- | Some (_,C.Def (bo,None)) ->
- debug_print (lazy "##### CASO DA INVESTIGARE E CAPIRE") ;
- type_of_aux ~logger context (S.lift n bo) ugraph
+ | Some (_,C.Def (_,ty)) -> S.lift n ty,ugraph
| None -> raise
(TypeCheckerFailure (lazy "Reference to deleted hypothesis"))
with
(* TASSI: CONSTRAINTS *)
| C.Sort (C.Type t) ->
let t' = CicUniv.fresh() in
- let ugraph1 = CicUniv.add_gt t' t ugraph in
- (C.Sort (C.Type t')),ugraph1
- (* TASSI: CONSTRAINTS *)
+ (try
+ let ugraph1 = CicUniv.add_gt t' t ugraph in
+ (C.Sort (C.Type t')),ugraph1
+ with
+ CicUniv.UniverseInconsistency msg -> raise (TypeCheckerFailure msg))
| C.Sort s -> (C.Sort (C.Type (CicUniv.fresh ()))),ugraph
- | C.Implicit _ -> raise (AssertFailure (lazy "21"))
+ | C.Implicit _ -> raise (AssertFailure (lazy "Implicit found"))
| C.Cast (te,ty) as t ->
let _,ugraph1 = type_of_aux ~logger context ty ugraph in
let ty_te,ugraph2 = type_of_aux ~logger context te ugraph1 in
type_of_aux ~logger ((Some (n,(C.Decl s)))::context) t ugraph1
in
(C.Prod (n,s,type2)),ugraph2
- | C.LetIn (n,s,t) ->
+ | C.LetIn (n,s,ty,t) ->
(* only to check if s is well-typed *)
- let ty,ugraph1 = type_of_aux ~logger context s ugraph in
+ let ty',ugraph1 = type_of_aux ~logger context s ugraph in
+ let _,ugraph1 = type_of_aux ~logger context ty ugraph1 in
+ let b,ugraph1 =
+ R.are_convertible ~subst ~metasenv context ty ty' ugraph1
+ in
+ if not b then
+ raise
+ (TypeCheckerFailure
+ (lazy (sprintf
+ "The type of %s is %s but it is expected to be %s"
+ (CicPp.ppterm s) (CicPp.ppterm ty') (CicPp.ppterm ty))))
+ else
(* The type of a LetIn is a LetIn. Extremely slow since the computed
LetIn is later reduced and maybe also re-checked.
(C.LetIn (n,s, type_of_aux ((Some (n,(C.Def s)))::context) t))
Moreover the inferred type is closer to the expected one. *)
let ty1,ugraph2 =
type_of_aux ~logger
- ((Some (n,(C.Def (s,Some ty))))::context) t ugraph1
+ ((Some (n,(C.Def (s,ty))))::context) t ugraph1
in
(CicSubstitution.subst ~avoid_beta_redexes:true s ty1),ugraph2
| C.Appl (he::tl) when List.length tl > 0 ->
List.fold_right (
fun x (l,ugraph) ->
let ty,ugraph1 = type_of_aux ~logger context x ugraph in
- let _,ugraph1 = type_of_aux ~logger context ty ugraph1 in
+ (*let _,ugraph1 = type_of_aux ~logger context ty ugraph1 in*)
((x,ty)::l,ugraph1))
tl ([],ugraph1)
in
in
if not b then
raise
- (TypeCheckerFailure (lazy ("Case analasys: sort elimination not allowed")));
+ (TypeCheckerFailure (lazy ("Case analysis: sort elimination not allowed")));
(* let's check if the type of branches are right *)
- let parsno =
+ let parsno,constructorsno =
let obj,_ =
try
CicEnvironment.get_cooked_obj ~trust:false CicUniv.empty_ugraph uri
with Not_found -> assert false
in
match obj with
- C.InductiveDefinition (_,_,parsno,_) -> parsno
+ C.InductiveDefinition (il,_,parsno,_) ->
+ let _,_,_,cl =
+ try List.nth il i with Failure _ -> assert false
+ in
+ parsno, List.length cl
| _ ->
raise (TypeCheckerFailure
(lazy ("Unknown mutual inductive definition:" ^
UriManager.string_of_uri uri)))
- in
+ in
+ if List.length pl <> constructorsno then
+ raise (TypeCheckerFailure
+ (lazy ("Wrong number of cases in case analysis"))) ;
let (_,branches_ok,ugraph5) =
List.fold_left
(fun (j,b,ugraph) p ->
in
outtype,ugraph5
| C.Fix (i,fl) ->
- let types_times_kl,ugraph1 =
- (* WAS: list rev list map *)
+ let types,kl,ugraph1,len =
List.fold_left
- (fun (l,ugraph) (n,k,ty,_) ->
+ (fun (types,kl,ugraph,len) (n,k,ty,_) ->
let _,ugraph1 = type_of_aux ~logger context ty ugraph in
- ((Some (C.Name n,(C.Decl ty)),k)::l,ugraph1)
- ) ([],ugraph) fl
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
+ k::kl,ugraph1,len+1)
+ ) ([],[],ugraph,0) fl
in
- let (types,kl) = List.split types_times_kl in
- let len = List.length types in
let ugraph2 =
List.fold_left
(fun ugraph (name,x,ty,bo) ->
let (m, eaten, context') =
eat_lambdas ~subst (types @ context) (x + 1) bo
in
+ let rec_uri, rec_uri_len =
+ let he =
+ match List.hd context' with
+ Some (_,Cic.Decl he) -> he
+ | _ -> assert false
+ in
+ match CicReduction.whd ~subst (List.tl context') he with
+ | Cic.MutInd (uri,_,_)
+ | Cic.Appl (Cic.MutInd (uri,_,_)::_) ->
+ uri,
+ (match
+ CicEnvironment.get_obj
+ CicUniv.oblivion_ugraph uri
+ with
+ | Cic.InductiveDefinition (tl,_,_,_), _ ->
+ List.length tl
+ | _ -> assert false)
+ | _ -> assert false
+ in
(*
let's control the guarded by
destructors conditions D{f,k,x,M}
*)
- if not (guarded_by_destructors ~subst context' eaten
- (len + eaten) kl 1 [] m) then
+ if not (guarded_by_destructors ~logger ~metasenv ~subst
+ rec_uri rec_uri_len context' eaten (len + eaten) kl
+ 1 [] m)
+ then
raise
(TypeCheckerFailure
- (lazy ("Fix: not guarded by destructors")))
+ (lazy ("Fix: not guarded by destructors:"^CicPp.ppterm t)))
else
ugraph2
end
let (_,_,ty,_) = List.nth fl i in
ty,ugraph2
| C.CoFix (i,fl) ->
- let types,ugraph1 =
+ let types,ugraph1,len =
List.fold_left
- (fun (l,ugraph) (n,ty,_) ->
+ (fun (l,ugraph,len) (n,ty,_) ->
let _,ugraph1 =
type_of_aux ~logger context ty ugraph in
- (Some (C.Name n,(C.Decl ty))::l,ugraph1)
- ) ([],ugraph) fl
+ (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::l,
+ ugraph1,len+1)
+ ) ([],ugraph,0) fl
in
- let len = List.length types in
let ugraph2 =
List.fold_left
(fun ugraph (_,ty,bo) ->
let (_,ty,_) = List.nth fl i in
ty,ugraph2
- and check_exp_named_subst ~logger ~subst context ugraph =
+ and check_exp_named_subst ~logger ~subst context =
let rec check_exp_named_subst_aux ~logger esubsts l ugraph =
match l with
[] -> ugraph
raise (TypeCheckerFailure (lazy "Wrong Explicit Named Substitution"))
end
in
- check_exp_named_subst_aux ~logger [] ugraph
+ check_exp_named_subst_aux ~logger []
and sort_of_prod ~subst context (name,s) (t1, t2) ugraph =
let module C = Cic in
| (C.Sort (C.Type t1), C.Sort (C.Type t2)) ->
(* TASSI: CONSRTAINTS: the same in doubletypeinference, cicrefine *)
let t' = CicUniv.fresh() in
- let ugraph1 = CicUniv.add_ge t' t1 ugraph in
- let ugraph2 = CicUniv.add_ge t' t2 ugraph1 in
- C.Sort (C.Type t'),ugraph2
+ (try
+ let ugraph1 = CicUniv.add_ge t' t1 ugraph in
+ let ugraph2 = CicUniv.add_ge t' t2 ugraph1 in
+ C.Sort (C.Type t'),ugraph2
+ with
+ CicUniv.UniverseInconsistency msg -> raise (TypeCheckerFailure msg))
| (C.Sort _,C.Sort (C.Type t1)) ->
(* TASSI: CONSRTAINTS: the same in doubletypeinference, cicrefine *)
C.Sort (C.Type t1),ugraph (* c'e' bisogno di un fresh? *)
(match (CicReduction.whd ~subst context hetype) with
Cic.Prod (n,s,t) ->
let b,ugraph1 =
+(*if (match hety,s with Cic.Sort _,Cic.Sort _ -> false | _,_ -> true) && hety <> s then(
+prerr_endline ("AAA22: " ^ CicPp.ppterm hete ^ ": " ^ CicPp.ppterm hety ^ " <==> " ^ CicPp.ppterm s); let res = CicReduction.are_convertible ~subst ~metasenv context hety s ugraph in prerr_endline "#"; res) else*)
CicReduction.are_convertible
~subst ~metasenv context hety s ugraph
in
let _,ugraph = type_of ~logger ty ugraph in
ugraph
| C.CurrentProof (_,conjs,te,ty,_,_) ->
+ (* this block is broken since the metasenv should
+ * be topologically sorted before typing metas *)
+ ignore(assert false);
let _,ugraph =
List.fold_left
(fun (metasenv,ugraph) ((_,context,ty) as conj) ->
~logger:(new CicLogger.logger) [] uri i true
(Cic.Implicit None) (* never used *) (Cic.Sort s1) (Cic.Sort s2)
CicUniv.empty_ugraph)
+;;
+
+Deannotate.type_of_aux' :=
+ fun context t ->
+ ignore (
+ List.fold_right
+ (fun el context ->
+ (match el with
+ None -> ()
+ | Some (_,Cic.Decl ty) ->
+ ignore (type_of_aux' [] context ty CicUniv.oblivion_ugraph)
+ | Some (_,Cic.Def (bo,ty)) ->
+ ignore (type_of_aux' [] context ty CicUniv.oblivion_ugraph);
+ ignore (type_of_aux' [] context bo CicUniv.oblivion_ugraph));
+ el::context
+ ) context []);
+ fst (type_of_aux' [] context t CicUniv.oblivion_ugraph);;
projects / helm.git / blobdiff