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From: "Thompson, David" <dthompson2@worcester.edu>
To: Christopher Howard <christopher.howard@qlfiles.net>
Cc: Guile User Mailing List <guile-user@gnu.org>
Subject: Re: Goops: Setting Immutible Classes?
Date: Fri, 6 Oct 2017 08:55:53 -0400	[thread overview]
Message-ID: <CAJ=RwfYS4ZoGrK=xUXL-uzMjbpGO=WS73wo4Cq6oQCd-yKHHRA@mail.gmail.com> (raw)
In-Reply-To: <1507269654.28034.8.camel@qlfiles.net>

On Fri, Oct 6, 2017 at 2:00 AM, Christopher Howard
<christopher.howard@qlfiles.net> wrote:
> Hi, is the a way I could use goops such that I the classes are non-
> mutating, but have setters that simply return a new instance of the
> class (instead of modifying the original)?

I'm not too familiar with the meta-object protocol, but this sounds
like a case where you could make a new metaclass that supports
immutable slot setters.  See Section 8.11 in the manual.

- Dave



      parent reply	other threads:[~2017-10-06 12:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-06  6:00 Goops: Setting Immutible Classes? Christopher Howard
2017-10-06  6:24 ` Mark H Weaver
2017-10-06 15:46   ` Christopher Allan Webber
2017-10-06 12:55 ` Thompson, David [this message]

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