From: matz@... (Yukihiro Matsumoto)
Date: 2001-01-29T11:55:21+09:00
Subject: [ruby-talk:10046] Re: dynamic class creation question

Hi,

In message "[ruby-talk:10028] dynamic class creation question"
    on 01/01/29, David Alan Black <dblack@candle.superlink.net> writes:

|The way I'm doing it right now feels a bit awkward.  I'm wondering if
|there's a nicer way to get a dynamically-created class to be able to
|see and use variables from the instance that's creating it (as opposed
|to using class variables in a quasi-global-variable way, which is what
|I'm currently doing).
|
|Here's the little example:

class FirstStage

  def initialize(s)
    @words = s.split
  end

  def second_class
    words = @words
    c = Class.new
    c.class_eval <<-EOE
    @@words = words

    attr_accessor :stuff

    def initialize
      @stuff = @@words
    end

    def showstuff
      self.stuff.each do |t|
	puts t.upcase
      end
    end
    EOE
    return c
  end

end


# Test run

f = FirstStage.new("These are some words")
s = f.second_class
p = s.new
p.showstuff  #  THESE\nARE\nSOME\nWORDS\n

-- 
							matz.