From: kjana@...4lab.to (YANAGAWA Kazuhisa)
Date: 2002-10-15T20:53:16+09:00
Subject: Re: final in ruby

In message <200210141713.g9EHDrm03577@moulon.inra.fr>
decoux@moulon.inra.fr writes:

> >>>>> "A" == Austin Ziegler <austin@halostatue.ca> writes:
> 
> A> I think that what he's wanting to do is freeze a method, not a whole
> A> class...
> 
>  He just need to put the methods that he want protect in a module and then
>  freeze this module

Then that does not reflect author's desire:

    module M
      def foo; p 0; end
    end
    M.freeze
      
    class Foo
      include M
    end
    Foo.new.foo #=> 0
    
    class Foo
      def foo; p 1; end
    end
    Foo.new.foo #=> 1

Of course `def M.foo; ...; end' is rejected since that's a method
definition on a frozen module, but Foo itself is still opened.


-- 
kjana@dm4lab.to                               October 15, 2002
Slow and steady wins the race.