| 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' =
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 ->
| 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
(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
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) ->
+ | C.LetIn (name,so,ty,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)
+ check_is_really_smaller_arg ~subst context n nn kl x safes ty &&
+ check_is_really_smaller_arg ~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 (he::_) ->
(*CSC: sulla coda ci vogliono dei controlli? secondo noi no, ma *)
| 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 (lefts_and_tys,len,isinductive,paramsno,cl) =
let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
match o with
C.InductiveDefinition (tl,_,paramsno,_) ->
let cl' =
List.map
(fun (id,ty) ->
- (id, snd (split_prods ~subst tys paramsno ty))) cl
+ (id, snd (split_prods ~subst tys paramsno ty))) cl in
+ let lefts =
+ match tl with
+ [] -> assert false
+ | (_,_,ty,_)::_ ->
+ fst (split_prods ~subst [] paramsno ty)
in
- (tys,List.length tl,isinductive,paramsno,cl')
+ (lefts@tys,List.length tl,isinductive,paramsno,cl')
| _ ->
raise (TypeCheckerFailure
(lazy ("Unknown mutual inductive definition:" ^
(fun (p,(_,c)) i ->
let rl' =
let debrujinedte = debrujin_constructor uri len c in
- recursive_args tys 0 len debrujinedte
+ recursive_args lefts_and_tys 0 len debrujinedte
in
let (e,safes',n',nn',x',context') =
get_new_safes ~subst context p c rl' safes n nn x
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 (lefts_and_tys,len,isinductive,paramsno,cl) =
let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
match o with
C.InductiveDefinition (tl,_,paramsno,_) ->
let cl' =
List.map
(fun (id,ty) ->
- (id, snd (split_prods ~subst tys paramsno ty))) cl
+ (id, snd (split_prods ~subst tys paramsno ty))) cl in
+ let lefts =
+ match tl with
+ [] -> assert false
+ | (_,_,ty,_)::_ ->
+ fst (split_prods ~subst [] paramsno ty)
in
- (tys,List.length tl,isinductive,paramsno,cl')
+ (lefts@tys,List.length tl,isinductive,paramsno,cl')
| _ ->
raise (TypeCheckerFailure
(lazy ("Unknown mutual inductive definition:" ^
(fun (p,(_,c)) i ->
let rl' =
let debrujinedte = debrujin_constructor uri len c in
- recursive_args tys 0 len debrujinedte
+ recursive_args lefts_and_tys 0 len debrujinedte
in
let (e, safes',n',nn',x',context') =
get_new_safes ~subst context p c rl' safes n nn x
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 ->
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 ->
function
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 ~subst context n nn kl x safes
(CicSubstitution.lift m bo)
| None -> raise (TypeCheckerFailure (lazy "Reference to deleted hypothesis"))
)
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) ->
+ | C.LetIn (name,so,ty,ta) ->
guarded_by_destructors ~subst context n nn kl x safes so &&
- guarded_by_destructors ~subst ((Some (name,(C.Def (so,None))))::context)
- (n+1) (nn+1) kl (x+1) (List.map (fun x -> x + 1) safes) ta
+ guarded_by_destructors ~subst context n nn kl x safes ty &&
+ guarded_by_destructors ~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
| 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 (lefts_and_tys,len,isinductive,paramsno,cl) =
let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
match o with
C.InductiveDefinition (tl,_,paramsno,_) ->
let debrujinedty = debrujin_constructor uri len ty in
(id, snd (split_prods ~subst tys paramsno ty),
snd (split_prods ~subst tys paramsno debrujinedty)
- )) cl
+ )) cl in
+ let lefts =
+ match tl with
+ [] -> assert false
+ | (_,_,ty,_)::_ ->
+ fst (split_prods ~subst [] paramsno ty)
in
- (tys,len,isinductive,paramsno,cl')
+ (lefts@tys,len,isinductive,paramsno,cl')
| _ ->
raise (TypeCheckerFailure
(lazy ("Unknown mutual inductive definition:" ^
(*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 rl' = recursive_args lefts_and_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
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 (lefts_and_tys,len,isinductive,paramsno,cl) =
let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
match o with
C.InductiveDefinition (tl,_,paramsno,_) ->
let cl' =
List.map
(fun (id,ty) ->
- (id, snd (split_prods ~subst tys paramsno ty))) cl
+ (id, snd (split_prods ~subst tys paramsno ty))) cl in
+ let lefts =
+ match tl with
+ [] -> assert false
+ | (_,_,ty,_)::_ ->
+ fst (split_prods ~subst [] paramsno ty)
in
- (tys,List.length tl,isinductive,paramsno,cl')
+ (lefts@tys,List.length tl,isinductive,paramsno,cl')
| _ ->
raise (TypeCheckerFailure
(lazy ("Unknown mutual inductive definition:" ^
(fun (p,(_,c)) i ->
let rl' =
let debrujinedte = debrujin_constructor uri len c in
- recursive_args tys 0 len debrujinedte
+ recursive_args lefts_and_tys 0 len debrujinedte
in
let (e, safes',n',nn',x',context') =
get_new_safes ~subst context p c rl' safes n nn x
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 ->
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 ->
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 s ty1),ugraph2
+ (CicSubstitution.subst ~avoid_beta_redexes:true s ty1),ugraph2
| C.Appl (he::tl) when List.length tl > 0 ->
let hetype,ugraph1 = type_of_aux ~logger context he ugraph in
let tlbody_and_type,ugraph2 =
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 (_,_,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
begin
CicReduction.fdebug := -1 ;
eat_prods ~subst context
- (CicSubstitution.subst hete t) tl ugraph1
+ (CicSubstitution.subst ~avoid_beta_redexes:true hete t)
+ tl ugraph1
(*TASSI: not sure *)
end
else
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 -> fst (type_of_aux' [] context t CicUniv.oblivion_ugraph);;
projects / helm.git / blobdiff