From: Stefan Behnel <scoder@users.berlios.de>
Date: Thu, 18 Dec 2008 08:58:55 +0000 (+0100)
Subject: better error messages during constant folding, forward constants also through type... 
X-Git-Tag: 0.11-beta~120
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=e0e71d4fe4992f0a181252648fe2851340869a72;p=cython.git

better error messages during constant folding, forward constants also through type coercion
---

diff --git a/Cython/Compiler/ExprNodes.py b/Cython/Compiler/ExprNodes.py
index 00d8f2e9..d9c4f9b8 100644
--- a/Cython/Compiler/ExprNodes.py
+++ b/Cython/Compiler/ExprNodes.py
@@ -27,7 +27,8 @@ try:
 except NameError:
     from sets import Set as set
 
-not_a_constant = object()
+class NotConstant(object): pass # just for the name
+not_a_constant = NotConstant()
 constant_value_not_set = object()
 
 class ExprNode(Node):
@@ -4839,6 +4840,9 @@ class CoercionNode(NewTempExprNode):
         self.arg = arg
         if debug_coercion:
             print("%s Coercing %s" % (self, self.arg))
+
+    def calculate_constant_result(self):
+        self.constant_result = self.arg.constant_result
             
     def annotate(self, code):
         self.arg.annotate(code)