# HG changeset patch
# User Atul Varma <varmaa@toolness.com>
# Date 1251577120 25200
# Node ID ebc0ff7672906f590b12c27a55ef64bf8f2bf9e3
# Parent  b1cf9decc36f30d63ebf0e70ea19f4adc0562e4d
Ensure that get_stack() returns None if the stack is empty.

diff -r b1cf9decc36f -r ebc0ff767290 src/context.cpp
--- a/src/context.cpp	Sat Aug 29 13:16:43 2009 -0700
+++ b/src/context.cpp	Sat Aug 29 13:18:40 2009 -0700
@@ -187,7 +187,9 @@
     }
   }
 
-  return top;
+  if (top)
+    return top;
+  Py_RETURN_NONE;
 }
 
 static PyObject *
diff -r b1cf9decc36f -r ebc0ff767290 tests/test_pymonkey.py
--- a/tests/test_pymonkey.py	Sat Aug 29 13:16:43 2009 -0700
+++ b/tests/test_pymonkey.py	Sat Aug 29 13:18:40 2009 -0700
@@ -48,6 +48,10 @@
                 u'SyntaxError: missing ; before statement'
                 )
 
+    def testGetStackOnEmptyStackReturnsNone(self):
+        cx = pymonkey.Runtime().new_context()
+        self.assertEqual(cx.get_stack(), None)
+
     def testGetStackWorks(self):
         stack_holder = []