class_methods_and_private.txt

class_methods_and_private.txt

ruby-1.9.3-preview1 :001 > class Foo
ruby-1.9.3-preview1 :002?>   private
ruby-1.9.3-preview1 :003?>   def self.up
ruby-1.9.3-preview1 :004?>     "w00t"
ruby-1.9.3-preview1 :005?>     end
ruby-1.9.3-preview1 :006?>   end
 => nil 
ruby-1.9.3-preview1 :007 > class Bar
ruby-1.9.3-preview1 :008?>   class << self
ruby-1.9.3-preview1 :009?>     private
ruby-1.9.3-preview1 :010?>     def up
ruby-1.9.3-preview1 :011?>       "w00t"
ruby-1.9.3-preview1 :012?>       end
ruby-1.9.3-preview1 :013?>     end
ruby-1.9.3-preview1 :014?>   end
 => nil 
ruby-1.9.3-preview1 :015 > Foo.up
 => "w00t" 
ruby-1.9.3-preview1 :016 > Bar.up
NoMethodError: private method `up' called for Bar:Class
	from (irb):16
	from /Users/lo/.rvm/rubies/ruby-1.9.3-preview1/bin/irb:16:in `<main>'