From: daz <dooby@...10.karoo.co.uk>
Date: 2005-10-21T20:36:59+09:00
Subject: Re: define_class and get_class


Mushtaq Ahmed wrote:
> Methods can be defined and called dynamically using define_method and
> send/method respectively. Shouldn't there be similar alternatives for
> class creation and invocation? Maybe like this:
>
> name = "A"
> define_class(name) do
>    def say_hi
>      p "hi"
>    end
>    .
>    .
> end
> get_class(name).new.say_hi
>
>
> I would like the above syntax better than the current way of doing it.
>



module Kernel
  def define_class(name, &blk)
    klass = self.class.const_set(name, Class.new(&blk))
  end

  def get_class(name)
    self.class.const_get(name)
  end
end



name = 'D'

klass = define_class(name) do
   def say_hi
     p "hi #{self.class.name}"
   end
end

get_class(name).new.say_hi  #-> "hi D"


daz