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bug#36886: 26.2; (global-eldoc-mode -1) should disable eldoc completely

From: Basil L. Contovounesios
Subject: bug#36886: 26.2; (global-eldoc-mode -1) should disable eldoc completely
Date: Fri, 02 Aug 2019 14:44:33 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

Sanel Zukan <address@hidden> writes:

> Here is how to reproduce it with emacs -Q:
> 1. $ emacs -Q
> 2. M-x (global-eldoc-mode -1)
> ;; by not it should be disabled in mode-line, but if you do this:
> 3. M-: (fboundp '    <-- after entering apostrophe, eldoc will show
> 'fboundp' protoype in mode-line.
> Also after (global-eldoc-mode -1), I don't see anwyhere in eldoc.el code
> that eldoc-message-function is changed.

AFAICT eldoc-message-function doesn't need to be changed because it
isn't called when eldoc-mode is disabled.

The reason it ends up being called in your example is that M-:
explicitly and unconditionally enables eldoc-mode in the minibuffer.

Dmitry suggested making this behaviour conditional as a workaround, but
ultimately it would probably be best to try fixing bug#27202 without
messing with eldoc-mode in read--expression.



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