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Re: Temporary changing the behavior of a function
From: |
Stefan Monnier |
Subject: |
Re: Temporary changing the behavior of a function |
Date: |
Fri, 06 Nov 2015 08:03:47 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
> Now I want to call `foo' in the Mafia-mode;-), i.e., it should ask no
> further questions. What do I do? AFAIU, `cl-flet' won't help, since it
> is lexical. The best I can think of is to temporarily advice `bar' with
> :override - but then, instead of a `let'-like, local construct, I have
> to explicitly add and then remove the advice, right?
(defvar my-bar-is-silent nil)
(defun my-bar-silencer (orig &rest args)
(if my-bar-is-silent <dosomethinggrommit> (apply orig args)))
(advice-add 'bar :around #'my-bar-silencer)
and then
... (let ((my-bar-is-silent t))
(foo ...))
-- Stefan