Merge tag 'upstream/2.4.0'

Upstream version 2.4.0

1 files changed, 12 insertions, 3 deletions

diff --git a/src/engine/SCons/Debug.py b/src/engine/SCons/Debug.py
index 8adf7ca..0aa077d 100644
--- a/src/engine/SCons/Debug.py
+++ b/src/engine/SCons/Debug.py
@@ -28,12 +28,13 @@ needed by most users.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Debug.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Debug.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import sys
 import time
 import weakref
+import inspect
 
 # Global variable that gets set to 'True' by the Main script,
 # when the creation of class instances should get tracked.
@@ -46,7 +47,12 @@ def logInstanceCreation(instance, name=None):
         name = instance.__class__.__name__
     if name not in tracked_classes:
         tracked_classes[name] = []
-    tracked_classes[name].append(weakref.ref(instance))
+    if hasattr(instance, '__dict__'):
+        tracked_classes[name].append(weakref.ref(instance))
+    else:
+        # weakref doesn't seem to work when the instance
+        # contains only slots...
+        tracked_classes[name].append(instance)
 
 def string_to_classes(s):
     if s == '*':
@@ -66,7 +72,10 @@ def listLoggedInstances(classes, file=sys.stdout):
     for classname in string_to_classes(classes):
         file.write('\n%s:\n' % classname)
         for ref in tracked_classes[classname]:
-            obj = ref()
+            if inspect.isclass(ref):
+                obj = ref()
+            else:
+                obj = ref
             if obj is not None:
                 file.write('    %s\n' % repr(obj))