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From: Mikael Magnusson <mikachu@gmail.com>
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: Bug? Output not flushed?
Date: Fri, 15 Sep 2023 19:05:00 +0200	[thread overview]
Message-ID: <CAHYJk3QbXntu6F7MAcweg5m0iRXp0QmuSkdWP2DfDxNJ=TYHWg@mail.gmail.com> (raw)
In-Reply-To: <CAH+w=7YnQmbVqNKHmt6nthB-+1KdFYhXt2vfVu2_uHP6S5RxMg@mail.gmail.com>

On 9/15/23, Bart Schaefer <schaefer@brasslantern.com> wrote:
> Easily reproduced:
> % { print XXX; return 0; } >| /tmp/newfile; print $(</tmp/newfile)
> % print $(</tmp/newfile)
> That is, when a return statement appears in a current-shell complex
> list, the output is not flushed until the parser reaches the top level
> again.

I'm not sure if that diagnosis is correct, look at this:
% { print XXX; return 0; } >| /tmp/newfile; echo hello; print $(</tmp/newfile)

and if you put a sleep 10 in there, it still completes immediately,
ie, does the return just return from the whole statement? Isn't that
actually expected since it's not in a function or subshell?

>  If the return statement is removed, all is well:
> % { print YYY; } >| /tmp/newfile; print $(</tmp/newfile)
> %
> Any idea where to start looking for this?

Mikael Magnusson

  reply	other threads:[~2023-09-15 17:05 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-15 16:56 Bart Schaefer
2023-09-15 17:05 ` Mikael Magnusson [this message]
2023-09-15 17:30   ` Bart Schaefer
2023-09-15 22:22     ` [PATCH] ? Parse error does not always set $? (Was: Bug? Output not flushed?) Bart Schaefer
2023-09-16  1:20       ` Bart Schaefer

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