Doodle::Embrace

embrace

the intent of embrace is to provide a way to create directives that affect all members of a class ‘family’ without having to modify Module, Class or Object - in some ways, it’s similar to Ara Howard’s mixable though not as tidy :S

this works down to third level class << self - in practice, this is perfectly good - it would be great to have a completely general solution but I’m doubt whether the payoff is worth the effort

Public Instance Methods

embrace(other, &block) click to toggle source

fake module inheritance chain

# File lib/doodle.rb, line 260
    def embrace(other, &block)
      # include in instance method chain
      include other
      sc = class << self; self; end
      sc.module_eval {
        # class method chain
        include other
        # singleton method chain
        extend other
        # ensure that subclasses are also embraced
        define_method :inherited do |klass|
          #p [:embrace, :inherited, klass]
          klass.__send__(:embrace, other)       # n.b. closure
          klass.__send__(:include, Factory)     # is there another way to do this? i.e. not in embrace
          #super(klass) if defined?(super)
        end
      }
      sc.module_eval(&block) if block_given?
    end

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Doodle::Embrace

embrace

Public Instance Methods