[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: DEFSTRUCT and DEFCLASS
- To: Jon L White <email@example.com>
- Subject: Re: DEFSTRUCT and DEFCLASS
- From: David N Gray <Gray@dsg.csc.ti.com>
- Date: Fri, 14 Apr 89 11:20:58 CDT
- Cc: Common-Lisp-Object-System@SAIL.Stanford.edu
- In-reply-to: Msg of Fri, 14 Apr 89 00:36:22 PDT from Jon L White <firstname.lastname@example.org>
- Reply-to: Common-Lisp-Object-System-mailer@SAIL.Stanford.EDU
- Sender: GRAY@kelvin.csc.ti.com
> (DEFSTRUCT ... (:METACLASS STRUCTURE-CLASS))
> is legal and, if so, just what it means.
> Did anyone ever give satisfactory answers to your question about this?
No one ever responded to that message, but I did discuss it with Patrick
-- he felt that this didn't need to be supported until the metaclass
protocol was better defined. I did notice since then, though, that the
working draft standard, March 21, page 2-5, says that "The :METACLASS
option is reserved for future use; an implementation can be extended to
make use of the :metaclass option." That seems to answer the question as
far as the standard is concerned, but I feel uneasy about having that
sneaked in without discussion.