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Re: Can an :around advice know the name of the function it is advising?


From: Michael Heerdegen
Subject: Re: Can an :around advice know the name of the function it is advising?
Date: Sun, 14 Feb 2016 17:13:51 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.91 (gnu/linux)

Marcin Borkowski <mbork@mbork.pl> writes:

> I would like to be able for an :around advice to know not only the
> "original function" it is supposed to call, but also its /name/.  (Yes,
> I now a function need not have /one/ name -- it may have more or less --
> but assume that I added the advice to a command having one name in
> a usual manner.)  Is it even possible?  (I guess not, but I wanted to
> make sure.)

If you know a name of the function you want to advice, you can make it
known to the piece of advice too, of course ;-) But no, there is no
special mechanism for finding the name of the advised function from
within the advice code AFAIK - apart from looking at the
`backtrace-frame's or other brutal things.

AFAICT the process of installing advises only touches functions, but
doesn't cause changes on the symbol level apart from the functions
fbound to them.

Michael.




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