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Date: Tue, 16 Jun 2015 08:24:12 +0200
Message-ID: <CAHYJk3SyyZ8=b6p3YKaB5pwAJpVmC3_xBPM_iorbMx4pRJiriQ@mail.gmail.com>
Subject: Re: Read-only variables in emulation mode
From: Mikael Magnusson <mikachu@gmail.com>
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: zsh workers <zsh-workers@zsh.org>
Content-Type: text/plain; charset=UTF-8

On Tue, Jun 16, 2015 at 5:24 AM, Bart Schaefer
<schaefer@brasslantern.com> wrote:
> On Jun 16,  2:10am, Mikael Magnusson wrote:
> }
> } % echo hi; _=foo; echo $_
> } hi
> } hi
>
> That's actually a bug -- the assignment _=foo should erase $_ , I think.
>
> } % for _ in a b c; do echo $_ hi; done
> } hi
> } hi hi
> } hi hi
> }
> } I'm not sure if this is better than printing a warning that $_ is
> } readonly. :)
>
> If you go back to the original message in the thread, the whole point
> was to use $_ as a dummy variable that didn't need to be declared and
> whose value was instantly discarded.  For that purpose, the warning is
> extraneous.
>
> Admittedly that's a pretty constrained use case.

It's currently hooked up to nullstrsetfn, and was when it was readonly
too, so I guess this never worked as intended.

-- 
Mikael Magnusson