From ce2c4c977cf5437c35f3611ad48fb4682c1269ec Mon Sep 17 00:00:00 2001
From: Sergey Nartimov <just.lest@gmail.com>
Date: Wed, 4 Jan 2012 21:51:39 +0300
Subject: [PATCH] simplify Class#descendants using singleton_class method

---
 activesupport/lib/active_support/core_ext/class/subclasses.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/activesupport/lib/active_support/core_ext/class/subclasses.rb b/activesupport/lib/active_support/core_ext/class/subclasses.rb
index 46e9daaa8f..74ea047c24 100644
--- a/activesupport/lib/active_support/core_ext/class/subclasses.rb
+++ b/activesupport/lib/active_support/core_ext/class/subclasses.rb
@@ -7,7 +7,7 @@ class Class #:nodoc:
 
     def descendants
       descendants = []
-      ObjectSpace.each_object(class << self; self; end) do |k|
+      ObjectSpace.each_object(singleton_class) do |k|
         descendants.unshift k unless k == self
       end
       descendants