X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Flambda-delta%2Fbasic_rg%2FbrgEnvironment.ml;fp=helm%2Fsoftware%2Flambda-delta%2Fbasic_rg%2FbrgEnvironment.ml;h=29c6dd4754b86fc75875fe8148ee2e3d0bd26d64;hb=0dc347a7742e40a828fa98acba70078dd2d7cbd5;hp=902eeb45a629c599da696f0d798336e5260d4460;hpb=c52a5748465e24374aec569bf74fc85e5bbb075a;p=helm.git

diff --git a/helm/software/lambda-delta/basic_rg/brgEnvironment.ml b/helm/software/lambda-delta/basic_rg/brgEnvironment.ml
index 902eeb45a..29c6dd475 100644
--- a/helm/software/lambda-delta/basic_rg/brgEnvironment.ml
+++ b/helm/software/lambda-delta/basic_rg/brgEnvironment.ml
@@ -10,20 +10,15 @@
       V_______________________________________________________________ *)
 
 module U = NUri
-module L = Log
 module H = U.UriHash
 module B = Brg
 
-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 =
@@ -31,5 +26,5 @@ let set_obj f obj =
    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) with Not_found -> error uri
+let get_obj err f uri =
+   try f (H.find env uri) with Not_found -> err ()