From d2405a0aab6b246842163cdb1a40d2d300b7b879 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Tue, 14 May 2013 16:15:57 -0700
Subject: use inject rather than multiple assignments

---
 activesupport/lib/active_support/callbacks.rb | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'activesupport/lib/active_support/callbacks.rb')

diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb
index 429e4f60a4..e6e2fcfb3f 100644
--- a/activesupport/lib/active_support/callbacks.rb
+++ b/activesupport/lib/active_support/callbacks.rb
@@ -540,11 +540,9 @@ module ActiveSupport
       def compile
         return @callbacks if @callbacks
 
-        @callbacks = Filters::ENDING
-        @chain.reverse_each do |callback|
-          @callbacks = callback.apply(@callbacks)
+        @callbacks = @chain.reverse.inject(Filters::ENDING) do |chain, callback|
+          callback.apply chain
         end
-        @callbacks
       end
 
       def append(*callbacks)
-- 
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