From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Monnier <monnier@IRO.UMontreal.CA>
Subject: Re: Why does evaluating a piece of Elisp code seemingly not expand a
 macro?
Date: Mon, 18 Jan 2016 15:19:36 -0500
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> Does that mean that it's possible that a function definition contains
> unexpanded macros?

Yes.

> Does that mean that `symbol-function' will expand them?

AFAIK it currently never happens there, but if your code relies on this
property it's probably got a bug.

> Does that mean that if I define a macro, then a function using that
> macro, and then change the definition of the macro, the behavior of the
> function is undefined?

Yes.


        Stefan