From: Benny <linux@...>
Date: 2004-07-13T07:22:27+09:00
Subject: Problems creating a method to define a class with its method

Dear list, 

I want to create a method that creates certain kinds of classes for me.
The following doesn't work:

### start pseudo code
module My_Module
 class Bigclass
  attr_accessor :test
  def Bigclass.run(para)
    @test = para
    puts "your parameter is " + @test
  end
  def Bigclass.check
    puts "I'm here"
  end
 end

 def My_Module.subclass(name, &code)
  eval <<-EOS
    class #{name} < Bigclass   
      def #{name}.run(p)
        super(p)                
       #{code.call}
      end
    end
  EOS
 end
end

My_Module::subclass("Newclass"){
  puts "doesn't work" + @test.to_s
  check()
}

My_Module::Newclass.run("my parameter")
### end pseudo code

the problem is that the #{code.call} is executed before
the class is defined, so @test isn't filled yet (super(p) 
isn't executed at this time.

how can I change the code, so that �code� is part of the definition
of the class (i.e. part of its method �run�)?
(the code can be very long, so putting it in a string is 
not very comfortable regarding quoting etc. (I also want 
the code to be highlighted in an editor).

benny