From: Robert Bradshaw <robertwb@math.washington.edu>
Date: Wed, 8 Oct 2008 07:05:25 +0000 (-0700)
Subject: Fix ticket #72, (compiler crash on bad code)
X-Git-Tag: 0.9.9.2.beta~57
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=e48bc77a49447eedb8d753fd293509e7f934956f;p=cython.git

Fix ticket #72, (compiler crash on bad code)
---

diff --git a/Cython/Compiler/Optimize.py b/Cython/Compiler/Optimize.py
index 07f2e0fb..c26bd913 100644
--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -39,12 +39,12 @@ class SwitchTransform(Visitor.VisitorTransform):
             if is_common_value(cond.operand1, cond.operand1):
                 if isinstance(cond.operand2, ExprNodes.ConstNode):
                     return cond.operand1, [cond.operand2]
-                elif hasattr(cond.operand2, 'entry') and cond.operand2.entry.is_const:
+                elif hasattr(cond.operand2, 'entry') and cond.operand2.entry and cond.operand2.entry.is_const:
                     return cond.operand1, [cond.operand2]
             if is_common_value(cond.operand2, cond.operand2):
                 if isinstance(cond.operand1, ExprNodes.ConstNode):
                     return cond.operand2, [cond.operand1]
-                elif hasattr(cond.operand1, 'entry') and cond.operand1.entry.is_const:
+                elif hasattr(cond.operand1, 'entry') and cond.operand1.entry and cond.operand1.entry.is_const:
                     return cond.operand2, [cond.operand1]
         elif (isinstance(cond, ExprNodes.BoolBinopNode) 
                 and cond.operator == 'or'):