X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_omdoc%2FdoubleTypeInference.ml;h=5b0cc01fc438ebd695508f635fd6bab8f77c6c86;hb=refs%2Ftags%2FPRE_UNIVERSES;hp=441d7c9a938425a573c15f7236308f189e2be165;hpb=c5d5bf37b1e4c4b9b499ed2cbfe27cf2ec181944;p=helm.git

diff --git a/helm/ocaml/cic_omdoc/doubleTypeInference.ml b/helm/ocaml/cic_omdoc/doubleTypeInference.ml
index 441d7c9a9..5b0cc01fc 100644
--- a/helm/ocaml/cic_omdoc/doubleTypeInference.ml
+++ b/helm/ocaml/cic_omdoc/doubleTypeInference.ml
@@ -361,9 +361,7 @@ let rec type_of_aux' subterms_to_types metasenv context t expectedty =
         CicSubstitution.subst_vars exp_named_subst (type_of_variable uri)
      | C.Meta (n,l) -> 
         (* Let's visit all the subterms that will not be visited later *)
-        let (_,canonical_context,_) =
-         List.find (function (m,_,_) -> n = m) metasenv
-        in
+        let (_,canonical_context,_) = CicUtil.lookup_meta n metasenv in
          let lifted_canonical_context =
           let rec aux i =
            function
@@ -398,9 +396,7 @@ let rec type_of_aux' subterms_to_types metasenv context t expectedty =
                | _,_ -> assert false (* the term is not well typed!!! *)
             ) l lifted_canonical_context
           in
-           let (_,canonical_context,ty) =
-            List.find (function (m,_,_) -> n = m) metasenv
-           in
+           let (_,canonical_context,ty) = CicUtil.lookup_meta n metasenv in
             (* Checks suppressed *)
             CicSubstitution.lift_meta l ty
      | C.Sort (C.Type t) -> (* TASSI: CONSTRAINT *)
@@ -545,7 +541,12 @@ let rec type_of_aux' subterms_to_types metasenv context t expectedty =
          (* Checks suppressed *)
          (* Let's visit all the subterms that will not be visited later *)
          let (cl,parsno) =
-          match CicEnvironment.get_cooked_obj uri with
+           let obj =
+             try
+               CicEnvironment.get_cooked_obj uri
+             with Not_found -> assert false
+           in
+          match obj with
              C.InductiveDefinition (tl,_,parsno) ->
               let (_,_,_,cl) = List.nth tl i in (cl,parsno)
            | _ ->
@@ -643,14 +644,24 @@ let rec type_of_aux' subterms_to_types metasenv context t expectedty =
 
  and visit_exp_named_subst context uri exp_named_subst =
   let uris_and_types =
-   match CicEnvironment.get_cooked_obj uri with
+     let obj =
+       try
+         CicEnvironment.get_cooked_obj uri
+       with Not_found -> assert false
+     in
+    match obj with
       Cic.Constant (_,_,_,params)
     | Cic.CurrentProof (_,_,_,_,params)
     | Cic.Variable (_,_,_,params)
     | Cic.InductiveDefinition (_,params,_) ->
        List.map
         (function uri ->
-          match CicEnvironment.get_cooked_obj uri with
+           let obj =
+             try
+               CicEnvironment.get_cooked_obj uri
+             with Not_found -> assert false
+           in
+           match obj with
              Cic.Variable (_,None,ty,_) -> uri,ty
            | _ -> assert false (* the theorem is well-typed *)
         ) params