minor fix

08c7bf8b · Stefan Behnel · b9603f4d · 08c7bf8b
Commit 08c7bf8b authored Dec 05, 2013 by Stefan Behnel
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Cython/Compiler/Optimize.py Cython/Compiler/Optimize.py +1 -1

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--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -3384,7 +3384,7 @@ class ConstantFolding(Visitor.VisitorTransform, SkipDeclarations):

    def visit_WhileStatNode(self, node):
        self.visitchildren(node)
-        if node.condition.has_constant_result():
+        if node.condition and node.condition.has_constant_result():
            if node.condition.constant_result:
                node.condition = None
                node.else_clause = None