[pypy-svn] r13320 - pypy/dist/pypy/rpython

[arigo at codespeak.net]

Author: arigo
Date: Sun Jun 12 14:28:51 2005
New Revision: 13320

Modified:
   pypy/dist/pypy/rpython/lltype.py
Log:
Cannot hash ForwardReferences.


Modified: pypy/dist/pypy/rpython/lltype.py
==============================================================================
--- pypy/dist/pypy/rpython/lltype.py	(original)
+++ pypy/dist/pypy/rpython/lltype.py	Sun Jun 12 14:28:51 2005
@@ -222,6 +222,9 @@
         self.__class__ = realcontainertype.__class__
         self.__dict__ = realcontainertype.__dict__
 
+    def __hash__(self):
+        raise TypeError("%r object is not hashable" % self.__class__.__name__)
+
 class GcForwardReference(ForwardReference):
     def become(self, realcontainertype):
         if not isinstance(realcontainertype, GC_CONTAINER):