# File lib/mab/mixin.rb, line 10
      def initialize(name, options, context, instance = nil)
        @_name = name
        @_options = options
        @_context = context
        @_instance = instance
        @_done = false

        @_content = nil
        @_has_content = nil

        @_attributes = {}

        @_pos = @_context.size
      end