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Re: problems with flet on last emacs

From: João Távora
Subject: Re: problems with flet on last emacs
Date: Sat, 10 Nov 2012 23:07:05 +0000

On Sat, Nov 10, 2012 at 10:46 PM, Stefan Monnier
<address@hidden> wrote:
> No, cl-flet is like Common-Lisp's `flet', i.e. lexically scoped, like
> `labels', but without the mutual-recursion.  If you want the "function
> redefinition" behavior, you need defadvice.

Hmmm, OK, good to know that then, but 'defadvice' feels strange,
what's the problem
with using  a combo of 'fset', 'symbol-function' and 'unwind-protect'?
Something like

(defun foo ()
  (message "foo"))

(defun meta-foo ()

(let ((saved (symbol-function 'foo)))
        (fset 'foo #'(lambda ()
                       (message "bar!")))
    (fset 'foo saved)))

João Távora

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