From a0e0b5a769f95e995e04c58f270cfa953b34f901 Mon Sep 17 00:00:00 2001
From: Marion <marion.zepf@gmail.com>
Date: Thu, 29 Aug 2013 13:30:34 +0000
Subject: introduce PrimitiveDisjunctions and TypeDisjunctions

---
(limited to 'TurtleArt/tatype.py')

diff --git a/TurtleArt/tatype.py b/TurtleArt/tatype.py
index 2c78c92..e6ffbb9 100644
--- a/TurtleArt/tatype.py
+++ b/TurtleArt/tatype.py
@@ -46,6 +46,12 @@ class Type(object):
     def __str__(self):
         return str(self.name)
 
+
+class TypeDisjunction(tuple,Type):
+    """ Disjunction of two or more Types (from the type hierarchy) """
+    pass
+
+
 TYPE_OBJECT = Type('object', 0)
 TYPE_CHAR = Type('char', 1)
 TYPE_COLOR = Type('color', 2)
--
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