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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: "Basil L. Contovounesios" <contovob@tcd.ie>
Cc: akater <nuclearspace@gmail.com>, emacs-devel@gnu.org
Subject: Re: defmacro with built-in gensym declaration and initialization
Date: Wed, 20 Jan 2021 10:09:53 -0500	[thread overview]
Message-ID: <jwveeif641k.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87turbiuvr.fsf@tcd.ie> (Basil L. Contovounesios's message of "Wed, 20 Jan 2021 13:46:16 +0000")

> IMO, this minor convenience is insufficient motivation for
> conflating/complicating a macro's global arglist, i.e. its arity,
> calling convention, etc., with utilities for its local body.  Is there
> some other motivation?  Am I missing something?

Agreed.  This is like the hideous `&aux` of Common Lisp.

> Why not provide handy gensym/once-only local conveniences for macro
> authors instead (some of which already exist in one form or another,
> e.g. macroexp-let2, inline-letevals, and org-with-gensyms)?

Indeed, `macroexp-let2` was designed for similar situations.
I'm not completely happy with it either, so if someone can design
something better, that'd be welcome,


        Stefan




  reply	other threads:[~2021-01-20 15:09 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-20  8:15 defmacro with built-in gensym declaration and initialization akater
2021-01-20 13:46 ` Basil L. Contovounesios
2021-01-20 15:09   ` Stefan Monnier [this message]
2021-01-20 16:47     ` Robin Tarsiger
2021-01-20 19:28   ` akater
2021-01-20 20:55     ` Basil L. Contovounesios
2021-01-21 19:34       ` akater
2021-01-21 20:50         ` Stefan Monnier
2021-01-21 20:50         ` Basil L. Contovounesios
2021-01-21 21:05           ` Stefan Monnier
2021-01-21 21:23             ` Basil L. Contovounesios

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