From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
To: Roman Perepelitsa <roman.perepelitsa@gmail.com>
Cc: Bart Schaefer <schaefer@brasslantern.com>,
Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: A serious bug in execution – where to debug?
Date: Tue, 30 Jul 2019 23:54:38 +0200 [thread overview]
Message-ID: <CAKc7PVC__sg3j6ujohd1qU_chmRFECsE=VFamC3egBs4qhM2_w@mail.gmail.com> (raw)
In-Reply-To: <CAN=4vMo2-w8qEdsgWwZ5C3WE+ZRmBa-c2BxjpZ7NWpvNq_J2tQ@mail.gmail.com>
On Tue, 30 Jul 2019 at 23:45, Roman Perepelitsa
<roman.perepelitsa@gmail.com> wrote:
>
> On Tue, Jul 30, 2019 at 11:38 PM Sebastian Gniazdowski
> <sgniazdowski@gmail.com> wrote:
> >
> > On Tue, 30 Jul 2019 at 23:02, Roman Perepelitsa
> > <roman.perepelitsa@gmail.com> wrote:
> > >> On Tue, 30 Jul 2019 at 20:28, Bart Schaefer <schaefer@brasslantern.com> wrote:
> > >> > If you change the [[ ... ]] && ... to an if/then, does the behavior change?
> > >> > If you add a "return" or "return $?" at the end of the function, does it change?
> > >>
> > >> a) yes, the problem cancels with if-then
> > >> b) no, adding one of the return's doesn't change the behavior
> > >
> > > I think Bart solved it. Do you have `emulate -L zsh` in your `zle` function?
> >
> > No, but adding it helps. Any emulation (sh, ksh) does. Aah, so this is
> > the errreturn option set within your plugin! and the if-then was
> > setting the return code to 0. A very interesting situation, having
> > your code called in foreign context, to know what options to defend
> > from.
>
> You should call `emulate -L zsh` from every functions that can be
> called by any code other than yours. It's almost impossible to write
I avoided localoptions for performance – it consumes some time, as it
(probably, but the performance effect is confirmed) allocates a new
table of options and fills it with defaults. So I've decided to write
an option-transparent code. But turns out that this might be hard in
case of such options as errreturn. I'll think about whether to replace
inline conditions with if-then or to do emulate -L.
--
Sebastian Gniazdowski
News: https://twitter.com/ZdharmaI
IRC: https://kiwiirc.com/client/chat.freenode.net:+6697/#zplugin
Blog: http://zdharma.org
next prev parent reply other threads:[~2019-07-30 21:55 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-30 17:00 Sebastian Gniazdowski
2019-07-30 17:05 ` Sebastian Gniazdowski
2019-07-30 17:41 ` Roman Perepelitsa
2019-07-30 17:55 ` Sebastian Gniazdowski
2019-07-30 18:12 ` Roman Perepelitsa
2019-07-30 18:16 ` Sebastian Gniazdowski
2019-07-30 18:22 ` Roman Perepelitsa
2019-07-30 18:53 ` Sebastian Gniazdowski
2019-07-30 19:23 ` Roman Perepelitsa
2019-07-30 19:34 ` Sebastian Gniazdowski
2019-07-30 19:41 ` Roman Perepelitsa
2019-07-30 19:59 ` Sebastian Gniazdowski
2019-07-30 20:08 ` Roman Perepelitsa
2019-07-30 20:38 ` Sebastian Gniazdowski
2019-07-30 18:27 ` Bart Schaefer
2019-07-30 18:46 ` Sebastian Gniazdowski
2019-07-30 21:02 ` Roman Perepelitsa
2019-07-30 21:38 ` Sebastian Gniazdowski
2019-07-30 21:45 ` Roman Perepelitsa
2019-07-30 21:54 ` Sebastian Gniazdowski [this message]
2019-07-30 22:11 ` Roman Perepelitsa
2019-07-30 22:18 ` Daniel Shahaf
2019-07-30 22:32 ` Roman Perepelitsa
2019-07-31 1:30 ` Sebastian Gniazdowski
2019-07-31 7:23 ` Roman Perepelitsa
2019-07-31 11:41 ` Sebastian Gniazdowski
2019-07-31 12:40 ` Roman Perepelitsa
2019-07-31 13:10 ` Sebastian Gniazdowski
2019-07-31 13:34 ` Roman Perepelitsa
2019-07-31 13:40 ` Sebastian Gniazdowski
2019-07-31 14:11 ` Roman Perepelitsa
2019-07-31 17:56 ` Sebastian Gniazdowski
2019-07-31 1:42 ` Bart Schaefer
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