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Re: Design principles and ethics


From: Bas Wijnen
Subject: Re: Design principles and ethics
Date: Tue, 2 May 2006 01:04:27 +0200
User-agent: Mutt/1.5.11+cvs20060403

On Tue, May 02, 2006 at 12:33:06AM +0200, Pierre THIERRY wrote:
> > > > C. The child cannot have any capability that the parent couldn't
> > > > gain access to. 
> > This is correct, but it isn't an extra requirement.  Just like in the
> > constructor, the child cannot receive a capability that neither the
> > parent nor the instantiator possess.
> 
> Either you or I have misunderstood something in how a constructor works.
> I had understood that the constructor is given a set of capabilities
> along with the process it will instantiates. This capabilities could be
> out of reach for the instantiator.

Yes, but those capabilities are inserted by the parent.  In the case of
trivial confinement, this is the same process as the instantiator.

Thanks,
Bas

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