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bug#20241: 25.0.50; `setq' with only one argument
From: |
Alan Mackenzie |
Subject: |
bug#20241: 25.0.50; `setq' with only one argument |
Date: |
Tue, 24 Nov 2015 11:32:24 +0000 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
Hello, Glenn.
On Mon, Nov 23, 2015 at 07:31:38PM +0000, Alan Mackenzie wrote:
> On Mon, Nov 23, 2015 at 01:44:51PM -0500, Glenn Morris wrote:
> > Alan Mackenzie wrote:
> > >> setq' should not be called with only one argument. It "works", with the
> > >> effect of assigning a value of nil, but it is poor form. Typically this
> > >> is a sign of a typo.
> > >
> > > Fixed in emacs-25. The interpreter now signals a wrong-number-of-args
> > > error, and the byte compiler issues a warning.
> > What on earth is this incompatible change doing in a feature-frozen
> > release branch?
> It's a bug fix.
> > Also, the combination of a compiler _warning_ and a run-time _error_
> > makes no sense.
> Maybe, maybe not. It's not the byte compiler's habit to signal errors:
> it only does so in most exceptional circumstances. Possibly the
> thinking is that it's best to produce a .elc anyway, which can be
> inspected, rather than just to error out.
Apologies for the above: the byte compiler does indeed routinely signal
errors as errors. I will change this "odd number of arguments" warning
into an error.
--
Alan Mackenzie (Nuremberg, Germany).
- bug#20241: 25.0.50; `setq' with only one argument, Alan Mackenzie, 2015/11/23
- bug#20241: 25.0.50; `setq' with only one argument, Glenn Morris, 2015/11/23
- bug#20241: 25.0.50; `setq' with only one argument, Glenn Morris, 2015/11/23
- bug#20241: 25.0.50; `setq' with only one argument, Alan Mackenzie, 2015/11/23
- bug#20241: 25.0.50; `setq' with only one argument,
Alan Mackenzie <=
- bug#20241: 25.0.50; `setq' with only one argument, Glenn Morris, 2015/11/24
- bug#20241: 25.0.50; `setq' with only one argument, Alan Mackenzie, 2015/11/24
- bug#20241: 25.0.50; `setq' with only one argument, Artur Malabarba, 2015/11/24
- bug#20241: 25.0.50; `setq' with only one argument, Alan Mackenzie, 2015/11/24
- bug#20241: 25.0.50; `setq' with only one argument, John Wiegley, 2015/11/24
- bug#20241: 25.0.50; `setq' with only one argument, Alan Mackenzie, 2015/11/25
- bug#20241: 25.0.50; `setq' with only one argument, Artur Malabarba, 2015/11/25
- bug#20241: 25.0.50; `setq' with only one argument, Alan Mackenzie, 2015/11/25
- bug#20241: 25.0.50; `setq' with only one argument, Artur Malabarba, 2015/11/25
- bug#20241: 25.0.50; `setq' with only one argument, Alan Mackenzie, 2015/11/25