From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Vasilij Schneidermann <v.schneidermann@gmail.com>
Cc: 25561@debbugs.gnu.org, Juri Linkov <juri@linkov.net>
Subject: bug#25561: 25.1; "Making isearch-search-fun-function local to *Minibuf-1* while let-bound!" warning with Evil
Date: Wed, 08 Feb 2017 17:21:11 -0500 [thread overview]
Message-ID: <jwvk29049al.fsf-monnier+emacsbugs@gnu.org> (raw)
In-Reply-To: <20170208125523.GA703@odonien.localdomain> (Vasilij Schneidermann's message of "Wed, 8 Feb 2017 13:55:23 +0100")
>> > a user of the Evil package reported [1] that using a search command
>> > results in a "Making isearch-search-fun-function local to *Minibuf-1*
>> > while let-bound!" warning. This appears to be an interaction between
>> > isearch and Evil, more specifically, Evil let-binds
>> > `isearch-search-fun-function' to something of its own, invokes isearch
>> > and something in isearch ends up running
>> > `minibuffer-history-isearch-setup' which `make-local-variable' to have
>> > `isearch-search-fun-function' have a separate value, resulting in the
>> > aforementioned warning.
>> >
>> > What's the recommended way to avoid or silence it? Stefan suggested
>> > elsewhere [2] that this might indicate a bug, hence why I'm bringing
>> > this up here.
I plead guilty of adding this warning. But FWIW, I think it was
misguided: the interaction between make-local-variable and let-binding
can be pretty tricky, which is why I added the warning (thinking that
such things should better be avoided), but in my subsequent experience,
I haven't found a single case where the problem is real. Worse: it's
often difficult/ugly to change the code to avoid the "tricky"
interaction, because the code that does the let-binding doesn't know
about the other and vice-versa.
So, while the trickiness rmains, I think it's best to just hope for the
best, silently, rather than signal a warning that nobody (not even me)
knows how to address satisfactorily.
Stefan
next prev parent reply other threads:[~2017-02-08 22:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-28 11:03 bug#25561: 25.1; "Making isearch-search-fun-function local to *Minibuf-1* while let-bound!" warning with Evil Vasilij Schneidermann
[not found] ` <8760kyzoma.fsf@mail.linkov.net>
2017-01-29 12:25 ` Vasilij Schneidermann
2017-02-08 12:55 ` Vasilij Schneidermann
2017-02-08 22:21 ` Stefan Monnier [this message]
2017-02-10 10:16 ` Eli Zaretskii
2017-02-10 12:45 ` Stefan Monnier
2017-02-18 9:29 ` Eli Zaretskii
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