add safety fix for method dispatch visitor

diff --git a/Cython/Compiler/Visitor.py b/Cython/Compiler/Visitor.py
index d17dfab..d46853a 100644 (file)
--- a/Cython/Compiler/Visitor.py
+++ b/Cython/Compiler/Visitor.py
@@ -493,6 +493,8 @@ class MethodDispatcherTransform(EnvTransform):
         return self._dispatch_to_handler(node, function, args, None)
 
     def visit_PrimaryCmpNode(self, node):
+        if node.cascade:
+            return node  # not currently handled below
         return self._visit_binop_node(node)
 
     def visit_BinopNode(self, node):