X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Flambda-delta%2Fbasic_rg%2FbrgEnvironment.ml;h=902eeb45a629c599da696f0d798336e5260d4460;hb=dcdee4ca839dac671924a95f0ada71faf06a8be4;hp=f1561516d1cb47f31abe87e8127913610b0b9d27;hpb=c45c77de154323feaf5bf6aee98c86b95361b9ae;p=helm.git

diff --git a/helm/software/lambda-delta/basic_rg/brgEnvironment.ml b/helm/software/lambda-delta/basic_rg/brgEnvironment.ml
index f1561516d..902eeb45a 100644
--- a/helm/software/lambda-delta/basic_rg/brgEnvironment.ml
+++ b/helm/software/lambda-delta/basic_rg/brgEnvironment.ml
@@ -10,21 +10,26 @@
       V_______________________________________________________________ *)
 
 module U = NUri
+module L = Log
 module H = U.UriHash
 module B = Brg
 
-exception ObjectNotFound of string Lazy.t
+exception ObjectNotFound of B.message
 
 let hsize = 7000 
 let env = H.create hsize
+let entry = ref 1
 
 (* Internal functions *******************************************************)
 
+let error uri = raise (ObjectNotFound (L.items1 (U.string_of_uri uri)))
+
 (* Interface functions ******************************************************)
 
-let set_obj f obj uri =
-   H.add env uri obj; f obj uri
-   
+let set_obj f obj =
+   let _, uri, b = obj in
+   let obj = !entry, uri, b in
+   incr entry; H.add env uri obj; f obj
+
 let get_obj f uri =
-   try f (H.find env uri) uri
-   with Not_found -> raise (ObjectNotFound (lazy (U.string_of_uri uri)))
+   try f (H.find env uri) with Not_found -> error uri