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List:       e-lang
Subject:    Re: [e-lang] Anvil (Forge) pattern
From:       marcs <marcs () skyhunter ! com>
Date:       2002-10-17 23:02:01
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On Thursday 17 October 2002 02:03 pm, Bill Frantz wrote:
> At 1:02 PM -0700 10/17/02, marcs wrote:
> >-- Having a separate "freeze" method is error prone: it is easy to forget
> >that
> >you haven't invoked freeze, everything will work fine, but it will leave a
> >security hole by accident.
> 
> The KeyKOS factory has a separate "freeze" method, but it avoids the
> problem of forgetting to invoke "freeze" by not making the use facit
> available until after the freeze method has been called.  (In fact, the use
> facit is returned by the freeze method.)
> 
> Cheers - Bill

Very clever. In other words, you KeyKos guys are still in the position of 
having forgotten more than I have learned about capabilities :-) Guess I'm 
not surprised :-)

--marcs
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