Posted By

narkisr on 03/21/09

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ruby

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Last Edited at 03/21/09 07:27pm

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Blank slate objects in Ruby

/ Published in: Ruby

Creating a object that doesn't have any methods in Ruby (regular objects inherit methods from Object class), useful for Proxies that use method missing (http://onestepback.org/index.cgi/Tech/Ruby/BlankSlate.rdoc).

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lass BlankSlate
    instance_methods.each { |m| undef_method m unless m =~ /^__/ }
end
 
# All methods will be passed to method_missing
class Proxy < BlankSlate
  def initialize(obj)
    @obj = obj
  end
 
  def method_missing(sym, *args, &block)
      puts "Sending #{sym}(#{args.join(',')}) to obj"
      @obj.__send__(sym, *args, &block)
    end
end

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