From: Barry Margolin <barmar@alum.mit.edu>
To: help-gnu-emacs@gnu.org
Subject: Re: hijack C function, use it transparently with in-between layer
Date: Mon, 06 Jun 2016 10:42:18 -0400 [thread overview]
Message-ID: <barmar-801325.10421806062016@88-209-239-213.giganet.hu> (raw)
In-Reply-To: mailman.974.1465221532.1216.help-gnu-emacs@gnu.org
In article <mailman.974.1465221532.1216.help-gnu-emacs@gnu.org>,
Stefan Monnier <monnier@iro.umontreal.ca> wrote:
> >>> Good point, any ideas how to get to that as well?
> >> Report the cases you bump into as bugs.
> > You mean there should be no C to C calls for
> > stuff that are in Elisp as well?
>
> Just because you report it as a bug doesn't mean the maintainers will
> fix it or agree that it should be fixed. There will sometimes be
> overriding concerns. I think the main 2 reasons why a C-to-C call
> should not be replaced by a call "via Elisp" are:
> - the call is made in a context where it's unsafe to run arbitrary Elisp
> code (e.g. GC is not allowed, or something like that).
> - the performance cost would be too high compared to the benefit of the
> added flexibility.
>
> So whether the code can be changed or not will depend on the
> specific cases. Hence report them as bugs and so the maintainers can
> look into it.
Is that a bug or a feature request? The documentation for advice
specifically warns that it doesn't have any effect on calls to built-in
functions from the C layer.
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
next prev parent reply other threads:[~2016-06-06 14:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-06 3:28 hijack C function, use it transparently with in-between layer Emanuel Berg
2016-06-06 3:46 ` Marcin Borkowski
2016-06-06 7:32 ` Barry Margolin
2016-06-06 10:55 ` Emanuel Berg
2016-06-06 11:30 ` Phillip Lord
[not found] ` <mailman.967.1465212644.1216.help-gnu-emacs@gnu.org>
2016-06-06 11:51 ` Emanuel Berg
2016-06-06 13:12 ` Stefan Monnier
[not found] ` <mailman.971.1465218784.1216.help-gnu-emacs@gnu.org>
2016-06-06 13:30 ` Emanuel Berg
2016-06-06 13:58 ` Stefan Monnier
[not found] ` <mailman.974.1465221532.1216.help-gnu-emacs@gnu.org>
2016-06-06 14:42 ` Barry Margolin [this message]
2016-06-06 14:58 ` Stefan Monnier
2016-06-06 23:03 ` Emanuel Berg
2016-06-06 23:44 ` Barry Margolin
2016-06-07 1:12 ` Emanuel Berg
2016-06-06 23:49 ` John Mastro
[not found] ` <mailman.1031.1465256987.1216.help-gnu-emacs@gnu.org>
2016-06-07 1:08 ` Emanuel Berg
2016-06-07 11:12 ` Phillip Lord
2016-06-07 15:22 ` Eli Zaretskii
2016-06-07 17:05 ` Emanuel Berg
[not found] ` <mailman.1050.1465298004.1216.help-gnu-emacs@gnu.org>
2016-06-07 12:00 ` Emanuel Berg
2016-06-06 14:40 ` Barry Margolin
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