From 2a02e3d30de151518f6b769c59b4585b817af22c Mon Sep 17 00:00:00 2001
From: Gabe Black <gabeblack@google.com>
Date: Mon, 25 Sep 2017 15:53:38 -0700
Subject: sim: Add a NullSimObject.descendants function.

Null simobjects don't have any descendants.

Change-Id: Ia43a99056709f422c9c817c017912d23d689fb1e
Reviewed-on: https://gem5-review.googlesource.com/4844
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
---
 src/python/m5/params.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/python/m5/params.py b/src/python/m5/params.py
index 6c3c47e95..f9412d70e 100644
--- a/src/python/m5/params.py
+++ b/src/python/m5/params.py
@@ -1716,6 +1716,10 @@ class NullSimObject(object):
     def clear_parent(self, old_parent):
         pass
 
+    def descendants(self):
+        return
+        yield None
+
     def __str__(self):
         return 'Null'
 
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