From: Nikolai Weibull <mailing-lists.ruby-talk@...>
Date: 2005-02-27T09:00:33+09:00
Subject: Re: Can I remove methods from a single object, but not its class?

* Sam Roberts (Feb 27, 2005 00:50):
>   class Foo
>    attr_writer :opt
>    def initialize
>      yield self
> 
>      # doesn't work
>      remove_method 'opt='
> 
>      # doesn't work
>      class < self
>        remove_method 'opt='
>      end
> 
>      # there must be a way?????
>    end
>   end
> 
>   f = Foo.new { |s| s.opt = 4 }
> 
>   # I want this to fail!
>   f.opt = 1

> This has to be possible... whats the magic? Should I use
> #method_missing, so I can decide to respond to it only during
> initialization?

class Foo
  attr_writer :opt
  def initialize
    yield self
    undef :opt=
  end
end

	nikolai

-- 
::: name: Nikolai Weibull    :: aliases: pcp / lone-star / aka :::
::: born: Chicago, IL USA    :: loc atm: Gothenburg, Sweden    :::
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