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From: Lynn Winebarger <owinebar@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Andrea Corallo <akrl@sdf.org>, emacs-devel@gnu.org
Subject: Re: native compilation units
Date: Sat, 11 Jun 2022 13:49:13 -0400	[thread overview]
Message-ID: <CAM=F=bC_qabPeDu+KpwAZoYsocmt0cdzzq2MPw_28BY_nOomLg@mail.gmail.com> (raw)
In-Reply-To: <jwvk09ncg98.fsf-monnier+emacs@gnu.org>

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On Sat, Jun 11, 2022 at 12:37 PM Stefan Monnier <monnier@iro.umontreal.ca>
wrote:

> >  Would it make sense to add a feature for declaring a function symbol
> value
> > is constant and non-advisable, at least within some notion of explicitly
> > named scope(s)?  That would allow developers to be more selective about
> > which functions are "exported" to library users, and which are defined as
> > global function symbols because it's more convenient than wrapping
> > everything in a package/module/namespace in a giant cl-flet and then
> > explicitly "exporting" functions and macros via fset.
>
> In which sense would it be different from:
>
>     (cl-flet
>         ...
>       (defun ...)
>       (defun ...)
>       ...)
>
>
Good point - it's my scheme background confusing me.  I was thinking defun
would operate with similar scoping rules as defvar and establish a local
binding, where fset (like setq) would not create any new bindings.
(1) I don't know how much performance difference (if any) there is between
     (fsetq exported-fxn #'internal-implementation)
and
     (defun exported-fxn (x y ...) (internal-implementation x y ...))

(2) I'm also thinking of more aggressively forcing const-ness at run-time
with something like:
(eval-when-compile
  (cl-flet ((internal-implemenation (x y ...) body ...))
     (fset exported-fxn #'internal-implementation)))
(fset exported-fxn (eval-when-compile #'exported-fxn))

If that makes sense, is there a way to do the same thing with defun?
Or perhaps cl-labels instead of cl-flet, assuming they are both optimized
the same way.

Lynn

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  reply	other threads:[~2022-06-11 17:49 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-31  1:02 native compilation units Lynn Winebarger
2022-06-01 13:50 ` Andrea Corallo
2022-06-03 14:17   ` Lynn Winebarger
2022-06-03 16:05     ` Eli Zaretskii
     [not found]       ` <CAM=F=bDxxyHurxM_xdbb7XJtP8rdK16Cwp30ti52Ox4nv19J_w@mail.gmail.com>
2022-06-04  5:57         ` Eli Zaretskii
2022-06-05 13:53           ` Lynn Winebarger
2022-06-03 18:15     ` Stefan Monnier
2022-06-04  2:43       ` Lynn Winebarger
2022-06-04 14:32         ` Stefan Monnier
2022-06-05 12:16           ` Lynn Winebarger
2022-06-05 14:08             ` Lynn Winebarger
2022-06-05 14:46               ` Stefan Monnier
2022-06-05 14:20             ` Stefan Monnier
2022-06-06  4:12               ` Lynn Winebarger
2022-06-06  6:12                 ` Stefan Monnier
2022-06-06 10:39                   ` Eli Zaretskii
2022-06-06 16:23                     ` Lynn Winebarger
2022-06-06 16:58                       ` Eli Zaretskii
2022-06-07  2:14                         ` Lynn Winebarger
2022-06-07 10:53                           ` Eli Zaretskii
2022-06-06 16:13                   ` Lynn Winebarger
2022-06-07  2:39                     ` Lynn Winebarger
2022-06-07 11:50                       ` Stefan Monnier
2022-06-07 13:11                         ` Eli Zaretskii
2022-06-14  4:19               ` Lynn Winebarger
2022-06-14 12:23                 ` Stefan Monnier
2022-06-14 14:55                   ` Lynn Winebarger
2022-06-08  6:56           ` Andrea Corallo
2022-06-11 16:13             ` Lynn Winebarger
2022-06-11 16:37               ` Stefan Monnier
2022-06-11 17:49                 ` Lynn Winebarger [this message]
2022-06-11 20:34                   ` Stefan Monnier
2022-06-12 17:38                     ` Lynn Winebarger
2022-06-12 18:47                       ` Stefan Monnier
2022-06-13 16:33                         ` Lynn Winebarger
2022-06-13 17:15                           ` Stefan Monnier
2022-06-15  3:03                             ` Lynn Winebarger
2022-06-15 12:23                               ` Stefan Monnier
2022-06-19 17:52                                 ` Lynn Winebarger
2022-06-19 23:02                                   ` Stefan Monnier
2022-06-20  1:39                                     ` Lynn Winebarger
2022-06-20 12:14                                       ` Lynn Winebarger
2022-06-20 12:34                                       ` Lynn Winebarger
2022-06-25 18:12                                       ` Lynn Winebarger
2022-06-26 14:14                                         ` Lynn Winebarger
2022-06-08  6:46         ` Andrea Corallo

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