X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Ftactics%2FvariousTactics.ml;h=927552f0a60219c558dc35a38368541f90586ed7;hb=97c2d258a5c524eb5c4b85208899d80751a2c82f;hp=bc6d522b983171aa0adc1ad8018b7d34eb46acbf;hpb=0f4efe6bfd4b4382ca5aab458b0d956c918ab29c;p=helm.git

diff --git a/helm/ocaml/tactics/variousTactics.ml b/helm/ocaml/tactics/variousTactics.ml
index bc6d522b9..927552f0a 100644
--- a/helm/ocaml/tactics/variousTactics.ml
+++ b/helm/ocaml/tactics/variousTactics.ml
@@ -55,7 +55,7 @@ let assumption_tac =
 		 if b then n else find (n+1) tl
            | _ -> find (n+1) tl
          )
-      | [] -> raise (PET.Fail "Assumption: No such assumption")
+      | [] -> raise (PET.Fail (lazy "Assumption: No such assumption"))
      in PET.apply_tactic (PT.apply_tac ~term:(C.Rel (find 1 context))) status
  in
   PET.mk_tactic assumption_tac
@@ -94,15 +94,21 @@ let generalize_tac
     let term =
      match term with
         None -> None
-      | Some term -> Some (CicMetaSubst.apply_subst subst term) in
-    let u,typ,term =
-     let context_of_t,t =
+      | Some term ->
+          Some (fun context metasenv ugraph -> 
+                  let term, metasenv, ugraph = term context metasenv ugraph in
+                  CicMetaSubst.apply_subst subst term, metasenv, ugraph)
+    in
+    let u,typ,term, metasenv =
+     let context_of_t, (t, metasenv, u) =
       match terms_with_context, term with
          [], None ->
           raise
            UnableToDetectTheTermThatMustBeGeneralizedYouMustGiveItExplicitly
-       | _, Some t -> context,t
-       | (context_of_t,t)::_, None -> context_of_t,t
+       | [], Some t -> context, t context metasenv u
+       | (context_of_t, _)::_, Some t -> 
+           context_of_t, t context_of_t metasenv u
+       | (context_of_t, t)::_, None -> context_of_t, (t, metasenv, u)
      in
       let t,subst,metasenv' =
        try
@@ -116,7 +122,7 @@ let generalize_tac
       assert (subst = []);
       assert (metasenv' = metasenv);
       let typ,u = CicTypeChecker.type_of_aux' ~subst metasenv context t u in
-       u,typ,t
+       u,typ,t,metasenv
     in
     (* We need to check:
         1. whether they live in the context of the goal;