FlowControl: fix case when arg entry is None, see #692, for instance

6aa0d3cf · Vitja Makarov · 103935ce · 6aa0d3cf
Commit 6aa0d3cf authored Jun 21, 2011 by Vitja Makarov
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Cython/Compiler/FlowControl.py Cython/Compiler/FlowControl.py +2 -1

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--- a/Cython/Compiler/FlowControl.py
+++ b/Cython/Compiler/FlowControl.py
@@ -709,7 +709,8 @@ class CreateControlFlowGraph(CythonTransform):

    def visit_CArgDeclNode(self, node):
        entry = self.env.lookup(node.name)
-        self.flow.mark_argument(node, TypedExprNode(entry.type), entry)
+        if entry:
+            self.flow.mark_argument(node, TypedExprNode(entry.type), entry)
        return node

    def visit_NameNode(self, node):