lib/taskjuggler/LogicalExpression.rb in taskjuggler-0.0.11 vs lib/taskjuggler/LogicalExpression.rb in taskjuggler-0.1.0

@@ -38,11 +38,11 @@
     # PropertyTreeNode that should be used for the evaluation. _scopeProperty_
     # is the PropertyTreeNode that describes the scope. It may be nil.
     def eval(query)
       @query = query
       res = @operation.eval(self)
-      return res if res.class == TrueClass || res.class == FalseClass ||
-                    res.class == String
+      return res if res.is_a?(TrueClass) || res.is_a?(FalseClass) ||
+                    res.is_a?(String)
       # In TJP syntax 'non 0' means false.
       return res != 0
     end
 
     # Dump the LogicalExpression as a String. If _query_ is provided, it will