[pypy-svn] r9763 - pypy/dist/pypy/annotation

[pedronis at codespeak.net]

Author: pedronis
Date: Mon Mar 14 16:05:29 2005
New Revision: 9763

Modified:
   pypy/dist/pypy/annotation/binaryop.py
Log:
let mix lists and None for now



Modified: pypy/dist/pypy/annotation/binaryop.py
==============================================================================
--- pypy/dist/pypy/annotation/binaryop.py	(original)
+++ pypy/dist/pypy/annotation/binaryop.py	Mon Mar 14 16:05:29 2005
@@ -340,6 +340,18 @@
     def union((pbc, ins)):
         return pair(ins, pbc).union()
 
+# let mix lists and None for now
+class __extend__(pairtype(SomeList, SomePBC)):
+    def union((lst, pbc)):
+        if pbc.isNone():
+            return lst
+        return SomeObject()
+
+class __extend__(pairtype(SomePBC, SomeList    )):
+    def union((pbc, lst)):
+        return pair(lst, pbc).union()
+
+
 class __extend__(pairtype(SomeObject, SomePBC)):
     def issubtype((obj, pbc)):
         s = SomeBool()