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Proposed de facto standard subset of metaobjects
- To: David Gray <firstname.lastname@example.org>
- Subject: Proposed de facto standard subset of metaobjects
- From: David A. Moon <Moon@STONY-BROOK.SCRC.Symbolics.COM>
- Date: Mon, 5 Mar 90 19:28 EST
- Cc: Common-Lisp-Object-System@MCC.COM, McCreary@dsg.csc.ti.com
- In-reply-to: <9003052316.AA21835@challenger>
Date: Mon, 5 Mar 90 15:16:16 PST
From: David Gray <email@example.com>
the Explorer doesn't have these because locatives don't have
a DEFCLASS slot option comparable to :READER and :WRITER; an explicit
DEFMETHOD using (LOCF (SLOT-VALUE ...)) would be required. Since few people
use locatives, I don't think it would be worthwhile for :ACCESSOR to imply
automatically creating a LOCF method as well as a SETF method.
The way we did it, :ACCESSOR does what the CLOS standard says, and if you
want a LOCF method, you have to use :LOCATOR (an extension to the language).
I agree that locatives are not heavily used.