lib/surrounded/context_errors.rb in surrounded-0.9.4 vs lib/surrounded/context_errors.rb in surrounded-0.9.5

@@ -1,8 +1,16 @@
 require 'triad'
 module Surrounded
   module Context
     class InvalidRole < ::Triad::ItemNotPresent; end
-    module InvalidRoleType; end
+    class InvalidRoleType < ::StandardError
+      unless method_defined?(:cause)
+        def initialize(msg=nil)
+          super
+          @cause = $!
+        end
+        attr_reader :cause
+      end
+    end
     class AccessError < ::StandardError; end
   end
 end
\ No newline at end of file