From: Stefan Behnel <scoder@users.berlios.de>
Date: Tue, 23 Nov 2010 19:03:45 +0000 (+0100)
Subject: fix constant folding for nonsense code like '-False'
X-Git-Tag: 0.14.alpha0~95
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=343f97968658842faf323fec2fe615642858b48c;p=cython.git

fix constant folding for nonsense code like '-False'
---

diff --git a/Cython/Compiler/Optimize.py b/Cython/Compiler/Optimize.py
index 62d29e31..c8abd0d4 100644
--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -2979,6 +2979,11 @@ class ConstantFolding(Visitor.VisitorTransform, SkipDeclarations):
             # this is a safe operation
             return ExprNodes.FloatNode(node.pos, value = '-' + node.operand.value,
                                        constant_result = node.constant_result)
+        if isinstance(node.operand, ExprNodes.BoolNode):
+            # not important at all, but simplifies the code below
+            return ExprNodes.IntNode(node.pos, value = str(node.constant_result),
+                                     type = PyrexTypes.c_int_type,
+                                     constant_result = node.constant_result)
         node_type = node.operand.type
         if node_type.is_int and node_type.signed or \
                isinstance(node.operand, ExprNodes.IntNode) and node_type.is_pyobject: