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From: "Lawrence Velázquez" <larryv@zsh.org>
To: "Peter Stephenson" <p.w.stephenson@ntlworld.com>
Cc: zsh-workers@zsh.org
Subject: Re: [PATCH] Fix ERR_EXIT behavior in function calls and "always" statements
Date: Wed, 23 Nov 2022 03:11:49 -0500	[thread overview]
Message-ID: <aa4d3b12-873f-435e-873a-21282a0e1de9@app.fastmail.com> (raw)
In-Reply-To: <1563682955.1031478.1669112257901@mail.virginmedia.com>

On Tue, Nov 22, 2022, at 5:17 AM, Peter Stephenson wrote:
> On the whole I think keeping anonymous functions behaving like other functions
> is probably sensible, though we could draw better attention to this unusual
> degree of consistency somewhere in the documentation.
>
> I don't think there's a killer argument for this but if you're using an
> anonymous function it's because you need some form of function behaviour and
> my own inclination would be to continue to provide essentially the whole of it,
> hopefully also limiting special cases in the source code.

There would certainly be value in permitting

    set -e
    foo() { cmd1; cmd2; cmd3 }
    foo
    unset -f foo

to be simplified to

    set -e
    () { cmd1; cmd2; cmd3 }

while maintaining the same early-exit behavior.  That consistency
might be more useful than strict adherence to the syntax-based logic
of POSIX "set -e".  Plus, as Bart noted, the (...) exception has
already set a precedent for special treatment.

-- 
vq


  reply	other threads:[~2022-11-23  8:12 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-16 14:40 Philippe Altherr
2022-11-19 13:39 ` Philippe Altherr
2022-11-21  0:43   ` Bart Schaefer
2022-11-21  7:22     ` Lawrence Velázquez
2022-11-22  2:52       ` Philippe Altherr
2022-11-22  4:51         ` Bart Schaefer
2022-11-22 10:17         ` Peter Stephenson
2022-11-23  8:11           ` Lawrence Velázquez [this message]
2022-11-23  6:59         ` Lawrence Velázquez
2022-11-23  9:43           ` Philippe Altherr
2022-11-23 16:11             ` Bart Schaefer
2022-11-23 20:57               ` Submitting multiple patches (was: Re: [PATCH] Fix ERR_EXIT behavior in function calls and "always" statements) Daniel Shahaf
2022-11-23 21:11                 ` Bart Schaefer
2022-11-23 21:22                   ` Bart Schaefer
2022-11-23 21:54                   ` Bart Schaefer
2022-11-24  2:21                     ` Philippe Altherr
2022-11-26  2:28                       ` Bart Schaefer
2022-11-26  4:02                         ` Philippe Altherr
2022-11-24  1:47               ` [PATCH] Fix ERR_EXIT behavior in function calls and "always" statements Philippe Altherr
2022-11-24  4:28             ` Lawrence Velázquez

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