From: Craig Citro <craigcitro@gmail.com>
Date: Sat, 17 Jul 2010 07:16:50 +0000 (-0700)
Subject: Fix bug in type analysis for ComprehensionNodes.
X-Git-Tag: 0.13.beta0~2^2~12
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=e31d6a8635b2f1d0493fa6185354ece654cd4b65;p=cython.git

Fix bug in type analysis for ComprehensionNodes.
---

diff --git a/Cython/Compiler/ExprNodes.py b/Cython/Compiler/ExprNodes.py
index 035f97e6..09c925f1 100755
--- a/Cython/Compiler/ExprNodes.py
+++ b/Cython/Compiler/ExprNodes.py
@@ -3988,6 +3988,9 @@ class ComprehensionNode(ScopedExprNode):
         if not self.has_local_scope:
             self.loop.analyse_expressions(env)
 
+    def analyse_expressions(self, env):
+        self.analyse_types(env)
+
     def analyse_scoped_expressions(self, env):
         if self.has_local_scope:
             self.loop.analyse_expressions(env)
diff --git a/tests/run/list_comprehension.pyx b/tests/run/list_comprehension.pyx
new file mode 100644
index 00000000..2360a713
--- /dev/null
+++ b/tests/run/list_comprehension.pyx
@@ -0,0 +1,8 @@
+
+def foo():
+    """
+    >>> foo()
+    [[], [-1], [-1, 0], [-1, 0, 1]]
+    """
+    result = [[a-1 for a in range(b)] for b in range(4)]
+    return result