From 94ecbb7e7bb70e56137df2e275e564fa4b5bc6fb Mon Sep 17 00:00:00 2001
From: Carlos Antonio da Silva <carlosantoniodasilva@gmail.com>
Date: Sun, 6 Jan 2013 10:52:36 -0200
Subject: [PATCH] Refactor to not call path.ast twice

---
 actionpack/lib/action_dispatch/journey/route.rb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/actionpack/lib/action_dispatch/journey/route.rb b/actionpack/lib/action_dispatch/journey/route.rb
index 41351bade4..f8a53227f3 100644
--- a/actionpack/lib/action_dispatch/journey/route.rb
+++ b/actionpack/lib/action_dispatch/journey/route.rb
@@ -31,8 +31,9 @@ module ActionDispatch
 
       def ast
         @decorated_ast ||= begin
-          path.ast.grep(Nodes::Terminal).each { |n| n.memo = self }
-          path.ast
+          decorated_ast = path.ast
+          decorated_ast.grep(Nodes::Terminal).each { |n| n.memo = self }
+          decorated_ast
         end
       end