* array.c (rb_ary_delete): element comparison might change array

  size. [ruby-dev:24273]

* parse.y: make ruby parser reentrant. merge ripper parser to the
  real one.  this change makes ruby require bison.

* file.c (rb_file_truncate): clear stdio buffer before truncating
  the file.  [ruby-dev:24191]

* ext/digest/digest.c: use rb_obj_class() instead of CLASS_OF
  which might return singleton class.  [ruby-dev:24202]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6919 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/cgi/session.rb b/lib/cgi/session.rb
index 9a49fdedc9..6ca85e1806 100644
--- a/lib/cgi/session.rb
+++ b/lib/cgi/session.rb
@@ -458,5 +458,42 @@ class CGI
 	GLOBAL_HASH_TABLE.delete(@session_id)
       end
     end
+
+    # Dummy session storage class.
+    #
+    # Implements session storage place holder.  No actual storage
+    # will be done.
+    class NullStore
+      # Create a new NullStore instance.
+      #
+      # +session+ is the session this instance is associated with.
+      # +option+ is a list of initialisation options.  None are
+      # currently recognised.
+      def initialize(session, option=nil)
+      end
+
+      # Restore (empty) session state.
+      def restore
+        {}
+      end
+
+      # Update session state.
+      #
+      # A no-op.
+      def update
+      end
+
+      # Close session storage.
+      #
+      # A no-op.
+      def close
+      end
+
+      # Delete the session state.
+      #
+      # A no-op.
+      def delete
+      end
+    end
   end
 end