compiler crash fix on missing attribute

diff --git a/Cython/Compiler/UtilNodes.py b/Cython/Compiler/UtilNodes.py
index 7d1a963bb956ada79282b5a52ecc196d78f61309..579f9e46438f24ccf8871f922c6a59887054b47c 100644 (file)
--- a/Cython/Compiler/UtilNodes.py
+++ b/Cython/Compiler/UtilNodes.py
@@ -117,6 +117,7 @@ class ResultRefNode(AtomicExprNode):
     # must be set externally (usually a temp name).
 
     subexprs = []
+    lhs_of_first_assignment = False
 
     def __init__(self, expression):
         self.pos = expression.pos