From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Tue, 28 Jul 2009 15:36:18 +0000 (+0000)
Subject: 1) Some more work for vector implicits.
X-Git-Tag: make_still_working~3603
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=0369aa83a42ed4730ed1946b02365760817f6ea2;p=helm.git

1) Some more work for vector implicits.
2) Vector implicits can be used only in argument position.
---

diff --git a/helm/software/components/ng_disambiguation/nCicDisambiguate.ml b/helm/software/components/ng_disambiguation/nCicDisambiguate.ml
index b044b51d9..357f9e539 100644
--- a/helm/software/components/ng_disambiguation/nCicDisambiguate.ml
+++ b/helm/software/components/ng_disambiguation/nCicDisambiguate.ml
@@ -364,7 +364,7 @@ let interpretate_term_and_interpretate_term_option
     | Some (CicNotationPt.AttributedTerm (_, term)) ->
         aux_option ~localize loc context annotation (Some term)
     | Some CicNotationPt.Implicit `JustOne -> NCic.Implicit annotation
-    | Some CicNotationPt.Implicit `Vector -> assert false
+    | Some CicNotationPt.Implicit `Vector -> NCic.Implicit `Vector
     | Some term -> aux ~localize loc context term
   in
    (fun ~context -> aux ~localize:true HExtlib.dummy_floc context),
diff --git a/helm/software/components/ng_refiner/nCicRefiner.ml b/helm/software/components/ng_refiner/nCicRefiner.ml
index 2b648d857..a227e918e 100644
--- a/helm/software/components/ng_refiner/nCicRefiner.ml
+++ b/helm/software/components/ng_refiner/nCicRefiner.ml
@@ -36,16 +36,18 @@ let wrap_exc msg = function
   | e -> raise e
 ;;
 
-let exp_implicit metasenv context expty =
+let exp_implicit ~localise metasenv context expty t =
  let foo x = match expty with Some t -> `WithType t | None -> x in
  function      
   | `Closed -> NCicMetaSubst.mk_meta metasenv [] (foo `Term)
   | `Type -> NCicMetaSubst.mk_meta metasenv context (foo `Type)
   | `Term -> NCicMetaSubst.mk_meta metasenv context (foo `Term)
+  | `Vector ->
+      raise (RefineFailure (lazy (localise t, "A vector of implicit terms " ^
+       "can only be used in argument position")))
   | _ -> assert false
 ;;
 
-
 let check_allowed_sort_elimination rdb localise r orig =
    let mkapp he arg =
      match he with
@@ -145,8 +147,10 @@ let rec typeof rdb
           NCicPp.ppterm ~subst ~metasenv ~context t)))
     | C.Sort _ -> metasenv,subst,t,(C.Sort (C.Type NCicEnvironment.type0))
     | C.Implicit infos -> 
-         let metasenv,_,t,ty = exp_implicit metasenv context expty infos in
-         metasenv, subst, t, ty 
+         let metasenv,_,t,ty =
+           exp_implicit ~localise metasenv context expty t infos
+         in
+          metasenv, subst, t, ty 
     | C.Meta (n,l) as t -> 
        let ty =
         try
@@ -228,15 +232,11 @@ let rec typeof rdb
        let bo_ty = NCicSubstitution.subst ~avoid_beta_redexes:true t bo_ty in
        metasenv, subst, C.LetIn (n, ty, t, bo), bo_ty
     | C.Appl ((he as orig_he)::(_::_ as args)) ->
-       let upto = 
-         match orig_he with C.Meta _ -> List.length args | _ -> 0
-       in
+       let upto = match orig_he with C.Meta _ -> List.length args | _ -> 0 in
        let metasenv, subst, he, ty_he = 
          typeof_aux metasenv subst context None he in
        let metasenv, subst, t, ty = 
-         eat_prods rdb ~localise
-           metasenv subst context orig_he he ty_he args
-       in
+         eat_prods rdb ~localise metasenv subst context orig_he he ty_he args in
        let t = if upto > 0 then NCicReduction.head_beta_reduce ~upto t else t in
        metasenv, subst, t, ty
    | C.Appl _ -> raise (AssertFailure (lazy "Appl of length < 2"))
@@ -436,12 +436,11 @@ and guess_name subst ctx ty =
       with NCicUtils.Subst_not_found _ -> aux 'M')
   | _ -> aux 'H' 
 
-and eat_prods rdb
-  ~localise metasenv subst context orig_he he ty_he args 
-=
+and eat_prods rdb ~localise metasenv subst context orig_he he ty_he args =
   (*D*)inside 'E'; try let rc = 
   let rec aux metasenv subst args_so_far he ty_he = function 
-  | []->metasenv, subst, NCicUntrusted.mk_appl he (List.rev args_so_far), ty_he
+  | [] ->metasenv, subst, NCicUntrusted.mk_appl he (List.rev args_so_far), ty_he
+  | NCic.Implicit `Vector::tl -> assert false
   | arg::tl ->
       match NCicReduction.whd ~subst context ty_he with 
       | C.Prod (_,s,t) ->