From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] scratch/record 25aa500 5/5: Backward compatibility with pre-existing struct instances.
Date: Tue, 28 Mar 2017 16:47:20 -0400 [thread overview]
Message-ID: <jwvtw6dxh8h.fsf-monnier+emacsdiffs@gnu.org> (raw)
In-Reply-To: <20170328192617.32EF32017F@vcs0.savannah.gnu.org> (Lars Brinkhoff's message of "Tue, 28 Mar 2017 15:26:17 -0400 (EDT)")
> --- a/lisp/emacs-lisp/cl-preloaded.el
> +++ b/lisp/emacs-lisp/cl-preloaded.el
> @@ -79,6 +79,8 @@
> (let ((tag (intern (format "cl-struct-%s" name)))
> (type-and-named (get name 'cl-struct-type))
> (descs (get name 'cl-struct-slots)))
> + (if (null (car type-and-named))
> + (setq type-and-named (cons 'record (cdr type-and-named))))
> (cl-struct-define name nil (get name 'cl-struct-include)
> (unless (and (eq (car type-and-named) 'vector)
> (null (cadr type-and-named))
Hmm... if we're in this code, it means we're in the case of an old-old
struct (once compiled before we introduced cl-struct-define), so it's
definitely not using `record`s.
Stefan
next parent reply other threads:[~2017-03-28 20:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170328192614.13038.29393@vcs0.savannah.gnu.org>
[not found] ` <20170328192617.32EF32017F@vcs0.savannah.gnu.org>
2017-03-28 20:47 ` Stefan Monnier [this message]
2017-03-29 6:52 ` [Emacs-diffs] scratch/record 25aa500 5/5: Backward compatibility with pre-existing struct instances Lars Brinkhoff
2017-03-29 12:26 ` Stefan Monnier
2017-03-29 17:18 ` Lars Brinkhoff
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