# File lib/aws/configuration.rb, line 271 def add_option_with_needs name, needs, &create_block accepted_options << name define_method(name) do return supplied[name] if supplied.has_key?(name) needed = needs.collect{|need| send(need) } unless @created.key?(name) and @created[name][:needed] == needed @created[name] ||= {} @created[name][:object] = create_block.call(self) @created[name][:needed] = needed end @created[name][:object] end end