zzak · September 13, 2010 16:54
diff --git a/clean_room.rb b/clean_room.rb
 # =================
 # Spell: Clean Room
 # =================

 # Use an object as an environment in which to evaluate a block.

 class CleanRoom
  def a_useful_method(x); x * 2; end
 end

 CleanRoom.new.instance_eval { a_useful_method(3) }	# => 6

 # For more information: http://www.pragprog.com/titles/ppmetr/metaprogramming-ruby
	# =================
	# Spell: Clean Room
	# =================

	# Use an object as an environment in which to evaluate a block.

	class CleanRoom
	def a_useful_method(x); x * 2; end
	end

	CleanRoom.new.instance_eval { a_useful_method(3) } # => 6

	# For more information: http://www.pragprog.com/titles/ppmetr/metaprogramming-ruby