From da87bdc2e55f18fdc1b184f8e123711429167735 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Fri, 21 Feb 2014 00:43:58 -0500
Subject: [PATCH] Cache generated class names

---
 Library/Homebrew/formulary.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/Library/Homebrew/formulary.rb b/Library/Homebrew/formulary.rb
index e99dc0815e..350854bbad 100644
--- a/Library/Homebrew/formulary.rb
+++ b/Library/Homebrew/formulary.rb
@@ -21,10 +21,12 @@ class Formulary
   end
 
   def self.class_s name
-    name = name.capitalize
-    name.gsub!(/[-_.\s]([a-zA-Z0-9])/) { $1.upcase }
-    name.gsub!('+', 'x')
-    name
+    (@class_s ||= {}).fetch(name) do
+      class_name = name.capitalize
+      class_name.gsub!(/[-_.\s]([a-zA-Z0-9])/) { $1.upcase }
+      class_name.gsub!('+', 'x')
+      @class_s[name] = class_name
+    end
   end
 
   # A FormulaLoader returns instances of formulae.