From: Dmitry Gutov <dgutov@yandex.ru>
To: Xue Fuqiao <xfq.free@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: About `unload-feature'
Date: Wed, 02 Jan 2013 03:23:41 +0400 [thread overview]
Message-ID: <878v8c32te.fsf@yandex.ru> (raw)
In-Reply-To: <20130102063146.c312c58395fceffea990bfb2@gmail.com> (Xue Fuqiao's message of "Wed, 2 Jan 2013 06:31:46 +0800")
Xue Fuqiao <xfq.free@gmail.com> writes:
> (info "(elisp) Unloading") says:
>
> Before restoring the previous definitions, `unload-feature' runs `remove-hook'
> to remove functions in the library from certain hooks. These hooks include
> variables whose names end in `-hook' (or the deprecated suffix `-hooks'), plus
> those listed in `unload-feature-special-hooks', as well as `auto-mode-alist'.
> This is to prevent Emacs from ceasing to function because important hooks refer
> to functions that are no longer defined.
>
> What does `ceasing to function' mean? Can anybody help? Thanks.
Looks like a hyperbole.
It would still function, but signal [lots of] "function is undefined" errors.
next prev parent reply other threads:[~2013-01-01 23:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-01 22:31 About `unload-feature' Xue Fuqiao
2013-01-01 23:23 ` Dmitry Gutov [this message]
2013-01-02 13:05 ` Xue Fuqiao
[not found] ` <mailman.16498.1357082632.855.help-gnu-emacs@gnu.org>
2013-01-02 1:10 ` Barry Margolin
2013-01-08 15:50 ` Stefan Monnier
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