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From: Michael Heerdegen <michael_heerdegen@web.de>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: Why is FUNC in cl-callf not allowed to be an expression?
Date: Fri, 10 May 2019 13:32:53 +0200	[thread overview]
Message-ID: <87pnoqtuhm.fsf@web.de> (raw)
In-Reply-To: <jwvbm0bb14w.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Thu, 09 May 2019 20:47:48 -0400")

Stefan Monnier <monnier@iro.umontreal.ca> writes:

> > (defmacro gv-callf (call &optional n)
> >   (gv-letplace (_getter setter) (nth (or n 1) call)
> >     (funcall setter call)))
>
> It's cute, tho I'm not too fond of specifying the place via a number,
> personally,

[I should use GETTER btw for more efficient code:

(defmacro gv-callf (call &optional n)
  (unless n (setq n 1))
  (gv-letplace (getter setter) (nth n call)
    (setf (nth n call) getter)
    (funcall setter call)))
]

Yes, but still better than having it as part of the macro name as in
cl-callf2... I don't have any better idea currently.  We could still
extend cl-callf however.


Michael.



  reply	other threads:[~2019-05-10 11:32 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-09 21:52 Why is FUNC in cl-callf not allowed to be an expression? Michael Heerdegen
2019-05-10  0:47 ` Stefan Monnier
2019-05-10 11:32   ` Michael Heerdegen [this message]
2019-05-10 13:28     ` Stefan Monnier
2019-05-10 14:19       ` Stefan Monnier
2019-05-10 14:22         ` Stefan Monnier
2019-05-10 15:18           ` Michael Heerdegen
2019-05-13 16:47             ` Stefan Monnier
2019-05-14 12:36               ` Michael Heerdegen
2019-05-14 23:32               ` Michael Heerdegen
2019-05-15  2:02                 ` Stefan Monnier
2019-05-15 16:38                   ` Michael Heerdegen
2019-05-15 17:19                     ` Michael Heerdegen
2019-05-16  2:18                       ` Michael Heerdegen
2019-05-16 13:12                     ` Stefan Monnier
2019-05-16 14:37                       ` Michael Heerdegen
2019-05-16 15:09                         ` Michael Heerdegen
2019-05-16 19:34                           ` Stefan Monnier
2019-05-16 21:46                             ` Michael Heerdegen
2019-05-16 23:06                               ` Stefan Monnier
2019-05-17 22:53                                 ` Michael Heerdegen
2019-05-18 14:09                                   ` Stefan Monnier
2019-05-20 23:25                                     ` Michael Heerdegen
2019-05-21  2:01                                       ` Stefan Monnier
2019-05-21  2:47                                         ` Michael Heerdegen
2019-05-21 10:16                                           ` Noam Postavsky
2019-05-21 16:38                                             ` Michael Heerdegen
2019-05-21 17:38                                           ` Stefan Monnier
2019-05-21  7:26                                         ` Andy Moreton
2019-05-23 23:02                                           ` Michael Heerdegen
2019-05-22  1:00                                     ` Michael Heerdegen
2019-05-23  1:50                                       ` Michael Heerdegen
2019-05-23  3:38                                         ` Stefan Monnier
2019-05-23 23:38                                           ` Michael Heerdegen
2019-05-24 15:29                                             ` Stefan Monnier
2019-05-28 19:54                                               ` Michael Heerdegen
2019-05-27  0:20                                     ` Michael Heerdegen
2019-05-29 17:02                                       ` Stefan Monnier
2019-05-15 19:17                   ` Michael Heerdegen

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