- in
- subst,metasenv,C.Rel (1 + n),ugraph1
- with
- Uncertain _
- | UnificationFailure _ ->
- match t' with
- | C.Rel m -> subst,metasenv,
- (if m <= n then C.Rel m else C.Rel (m+1)),ugraph
- | C.Var (uri,exp_named_subst) ->
- let subst,metasenv,exp_named_subst',ugraph1 =
- aux_exp_named_subst metasenv subst n context exp_named_subst ugraph
- in
- subst,metasenv,C.Var (uri,exp_named_subst'),ugraph1
- | C.Meta (i,l) ->
- (* andrea: in general, beta_expand can create badly typed
- terms. This happens quite seldom in practice, UNLESS we
- iterate on the local context. For this reason, we renounce
- to iterate and just lift *)
- let l =
- List.map
- (function
- Some t -> Some (CicSubstitution.lift 1 t)
- | None -> None) l in
- subst, metasenv, C.Meta (i,l), ugraph
- | C.Sort _
- | C.Implicit _ as t -> subst,metasenv,t,ugraph
- | C.Cast (te,ty) ->
- let subst,metasenv,te',ugraph1 =
- aux metasenv subst n context te ugraph in
- let subst,metasenv,ty',ugraph2 =
- aux metasenv subst n context ty ugraph1 in
- (* TASSI: sure this is in serial? *)
- subst,metasenv,(C.Cast (te', ty')),ugraph2
- | C.Prod (nn,s,t) ->
- let subst,metasenv,s',ugraph1 =
- aux metasenv subst n context s ugraph in
- let subst,metasenv,t',ugraph2 =
- aux metasenv subst (n+1) ((Some (nn, C.Decl s))::context) t
- ugraph1
- in
- (* TASSI: sure this is in serial? *)
- subst,metasenv,(C.Prod (nn, s', t')),ugraph2
- | C.Lambda (nn,s,t) ->
- let subst,metasenv,s',ugraph1 =
- aux metasenv subst n context s ugraph in
- let subst,metasenv,t',ugraph2 =
- aux metasenv subst (n+1) ((Some (nn, C.Decl s))::context) t ugraph1
- in
- (* TASSI: sure this is in serial? *)
- subst,metasenv,(C.Lambda (nn, s', t')),ugraph2
- | C.LetIn (nn,s,ty,t) ->
- let subst,metasenv,s',ugraph1 =
- aux metasenv subst n context s ugraph in
- let subst,metasenv,ty',ugraph1 =
- aux metasenv subst n context ty ugraph in
- let subst,metasenv,t',ugraph2 =
- aux metasenv subst (n+1) ((Some (nn, C.Def (s,ty)))::context) t
- ugraph1
- in
- (* TASSI: sure this is in serial? *)
- subst,metasenv,(C.LetIn (nn, s', ty', t')),ugraph2
- | C.Appl l ->
- let subst,metasenv,revl',ugraph1 =
- List.fold_left
- (fun (subst,metasenv,appl,ugraph) t ->
- let subst,metasenv,t',ugraph1 =
- aux metasenv subst n context t ugraph in
- subst,metasenv,(t'::appl),ugraph1
- ) (subst,metasenv,[],ugraph) l
- in
- subst,metasenv,(C.Appl (List.rev revl')),ugraph1
- | C.Const (uri,exp_named_subst) ->
- let subst,metasenv,exp_named_subst',ugraph1 =
- aux_exp_named_subst metasenv subst n context exp_named_subst ugraph
- in
- subst,metasenv,(C.Const (uri,exp_named_subst')),ugraph1
- | C.MutInd (uri,i,exp_named_subst) ->
- let subst,metasenv,exp_named_subst',ugraph1 =
- aux_exp_named_subst metasenv subst n context exp_named_subst ugraph
- in
- subst,metasenv,(C.MutInd (uri,i,exp_named_subst')),ugraph1
- | C.MutConstruct (uri,i,j,exp_named_subst) ->
- let subst,metasenv,exp_named_subst',ugraph1 =
- aux_exp_named_subst metasenv subst n context exp_named_subst ugraph
- in
- subst,metasenv,(C.MutConstruct (uri,i,j,exp_named_subst')),ugraph1
- | C.MutCase (sp,i,outt,t,pl) ->
- let subst,metasenv,outt',ugraph1 =
- aux metasenv subst n context outt ugraph in
- let subst,metasenv,t',ugraph2 =
- aux metasenv subst n context t ugraph1 in
- let subst,metasenv,revpl',ugraph3 =
- List.fold_left
- (fun (subst,metasenv,pl,ugraph) t ->
- let subst,metasenv,t',ugraph1 =
- aux metasenv subst n context t ugraph in
- subst,metasenv,(t'::pl),ugraph1
- ) (subst,metasenv,[],ugraph2) pl
- in
- subst,metasenv,(C.MutCase (sp,i,outt', t', List.rev revpl')),ugraph3
- (* TASSI: not sure this is serial *)
- | C.Fix (i,fl) ->
-(*CSC: not implemented
- let tylen = List.length fl in
- let substitutedfl =
- List.map
- (fun (name,i,ty,bo) -> (name, i, aux n ty, aux (n+tylen) bo))
- fl
- in
- C.Fix (i, substitutedfl)
-*)
- subst,metasenv,(CicSubstitution.lift 1 t' ),ugraph
- | C.CoFix (i,fl) ->
-(*CSC: not implemented
- let tylen = List.length fl in
- let substitutedfl =
- List.map
- (fun (name,ty,bo) -> (name, aux n ty, aux (n+tylen) bo))
- fl
- in
- C.CoFix (i, substitutedfl)
-
-*)
- subst,metasenv,(CicSubstitution.lift 1 t'), ugraph
-
- and aux_exp_named_subst metasenv subst n context ens ugraph =
- List.fold_right
- (fun (uri,t) (subst,metasenv,l,ugraph) ->
- let subst,metasenv,t',ugraph1 = aux metasenv subst n context t ugraph in
- subst,metasenv,((uri,t')::l),ugraph1) ens (subst,metasenv,[],ugraph)
+let rec lambda_intros rdb metasenv subst context t args =
+ let tty = NCicTypeChecker.typeof ~metasenv ~subst context t in
+ let argsty =
+ List.map
+ (fun arg -> arg, NCicTypeChecker.typeof ~metasenv ~subst context arg) args in
+ let context_of_args = context in
+ let mk_appl = function [] -> assert false | [t] -> t | l -> NCic.Appl l in
+ let rec mk_lambda metasenv subst context n processed_args = function
+ | [] ->
+ let metasenv, _, bo, _ =
+ NCicMetaSubst.mk_meta metasenv context
+ (`WithType (NCicSubstitution.lift n tty))
+ in
+ metasenv, subst, bo
+ | (arg,ty)::tail ->
+ let name = "HBeta"^string_of_int n in
+ let metasenv,_,instance,_ =
+ NCicMetaSubst.mk_meta metasenv context_of_args `Term in
+ let meta_applied = mk_appl (instance::List.rev processed_args) in
+let metasenv,subst,_,_ =
+ !refiner_typeof ((rdb :> NRstatus.status)#set_coerc_db NCicCoercion.empty_db) metasenv subst context_of_args meta_applied None
+in
+ let metasenv,subst =
+ unify rdb true metasenv subst context_of_args meta_applied ty in
+ let telescopic_ty = NCicSubstitution.lift n instance in
+ let telescopic_ty =
+ mk_appl (telescopic_ty :: mk_irl (List.length processed_args)) in
+ let metasenv, subst, bo =
+ mk_lambda metasenv subst ((name,NCic.Decl telescopic_ty)::context) (n+1)
+ (arg::processed_args) tail
+ in
+ metasenv, subst, NCic.Lambda (name, telescopic_ty, bo)
+ in
+ mk_lambda metasenv subst context 0 [] argsty
+
+and instantiate rdb test_eq_only metasenv subst context n lc t swap =
+ (*D*) inside 'I'; try let rc =
+ pp (lazy(string_of_int n ^ " :=?= "^
+ NCicPp.ppterm ~metasenv ~subst ~context t));
+ let unify test_eq_only m s c t1 t2 =
+ if swap then unify rdb test_eq_only m s c t2 t1
+ else unify rdb test_eq_only m s c t1 t2