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Re: Inheritance of Slots and Slot Options
- To: Moon@STONY-BROOK.SCRC.Symbolics.COM
- Subject: Re: Inheritance of Slots and Slot Options
- From: Danny Bobrow <Bobrow.pa@Xerox.COM>
- Date: 11 Mar 87 07:01 PST
- Cc: Common-Lisp-object-system@SAIL.STANFORD.EDU
- In-reply-to: David A. Moon <Moon@STONY-BROOK.SCRC.Symbolics.COM>'s message of Wed, 11 Mar 87 00:08 EST
- Sender: Bobrow.pa@Xerox.COM
The strong type constraint rule Moon proposes
Please note that I never proposed this, I only tried to make
the explanation understandable. If I had my druthers, there would
be no :type slot option.
As the one who proposed the :type option (because I was trying to be
upward compatible from defstruct), I support Moon's feeling. If this is
uniformly the case (Dick, we have not heard from you on this issue),
then why don't we delete it. It is something that can be added with the
metaobject protocol.
Proposal. In the errata sheet we eliminate :type, and make an explicit
statement to that effect in the presentation.
danny