X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=components%2Fgrafite_engine%2FgrafiteSync.ml;h=d318d11a73cb504b788dd98aa45cf18d66f635ba;hb=f06968e452cca8782e822d98bec9007404abcbbe;hp=b024811116ba011ee1ffd618515e214c27d0fa61;hpb=94267002fc18aa42a8c09779ad6485f93c3e90fa;p=helm.git

diff --git a/components/grafite_engine/grafiteSync.ml b/components/grafite_engine/grafiteSync.ml
index b02481111..d318d11a7 100644
--- a/components/grafite_engine/grafiteSync.ml
+++ b/components/grafite_engine/grafiteSync.ml
@@ -133,10 +133,7 @@ let time_travel ~present ~past =
   List.iter (fun uri -> LibrarySync.remove_coercion uri) coercions_to_remove;
   List.iter LibrarySync.remove_obj objs_to_remove
 
-let init baseuri =
-  LibrarySync.remove_all_coercions ();
-  LibraryObjects.reset_defaults ();
-  {
+let initial_status baseuri = {
     GrafiteTypes.moo_content_rev = [];
     proof_status = GrafiteTypes.No_proof;
 (*     options = GrafiteTypes.no_options; *)
@@ -145,3 +142,20 @@ let init baseuri =
     universe = Universe.empty;
     baseuri = baseuri;
   }
+
+
+let init baseuri =
+  LibrarySync.remove_all_coercions ();
+  LibraryObjects.reset_defaults ();
+  initial_status baseuri
+  ;;
+let pop () =
+  LibrarySync.pop ();
+  LibraryObjects.pop ()
+;;
+
+let push () =
+  LibrarySync.push ();
+  LibraryObjects.push ()
+;;
+