[pypy-svn] r13476 - pypy/branch/pycompiler/module/recparser

[adim at codespeak.net]

Author: adim
Date: Thu Jun 16 14:10:49 2005
New Revision: 13476

Modified:
   pypy/branch/pycompiler/module/recparser/automata.py
Log:
We don't need DEFAULTClass. Using None for DEFAULT is sufficient, and
simplifies the annotator work.
 


Modified: pypy/branch/pycompiler/module/recparser/automata.py
==============================================================================
--- pypy/branch/pycompiler/module/recparser/automata.py	(original)
+++ pypy/branch/pycompiler/module/recparser/automata.py	Thu Jun 16 14:10:49 2005
@@ -14,21 +14,11 @@
 # PYPY Modification: removed the EMPTY class as it's not needed here
 
 
-# PYPY Modification: Make the DEFAULTClasse inherit from str
-#                    to make the state dict homogeneous
-class DEFAULTClass(str):
-    def __repr__ (self):
-        return 'automata.DEFAULT'
-
-    def __eq__(self, other):
-        return False # Never equals other strings
-
-    def __ne__(self, other):
-        return True # Always different from other strings
-
-
-DEFAULT = DEFAULTClass()
-
+# PYPY Modification: we don't need a particuliar DEFAULT class here
+#                    a simple None works fine.
+#                    (Having a DefaultClass inheriting from str makes
+#                     the annotator crash)
+DEFAULT = None
 # PYPY Modification : removed all automata functions (any, maybe,
 #                     newArcPair, etc.)
 
@@ -69,6 +59,7 @@
             return i - 1
         else:
             return -1
+
 # ______________________________________________________________________
 
 class NonGreedyDFA (DFA):