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bug#44341: 27.1; define-minor-mode generates inaccurate docstring
From: |
Lars Ingebrigtsen |
Subject: |
bug#44341: 27.1; define-minor-mode generates inaccurate docstring |
Date: |
Mon, 02 Nov 2020 16:35:09 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Philipp Stephani <p.stephani2@gmail.com> writes:
>> > disable ; Should disable (as a random symbol)
>> > disable ; Again
>> > "What?" ; Same.
>>
>> These should be considered as errors. Whether we catch them and signal
>> an error or silently do something else is not particular important
>> to me.
>
> We should definitely signal an error here. A form such as (my-mode
> 'enable) actually disabling the mode is very confusing. The mode
> function needs to check for the various cases anyway, it might as well
> use `cond' and signal an error in the non-matching case.
We can't signal an error here -- ARG has been documented to accept these
values, and starting to signal an error would break a lot of people's
code.
(Now, ARG has been documented to work exactly opposite of the way it
really works for these values, but that's a different wrinkle.)
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no