gistfile1.rb

require 'rubygems'
require 'blankslate'


# This wraps and object and controlls all the method calls sent to it
# in Object#__called__
class MethodSendRecorder < BlankSlate
  def initialize(host)
    @__host__ = host
    @__called__ = []
  end
  attr_reader :__host__, :__called__
  
  def __called?(method)
    __called__.include? method.to_sym
  end
  
  def method_missing(method, *args, &block)
    __called__ << method
    __host__.send(method, *args, &block)
  end
end

a = MethodSendRecorder.new( [1,2,3] )
puts a.reverse
puts a.__called? :reverse