Re: [Emacs-diffs] /srv/bzr/emacs/trunk r111086: gmm-utils.el (gmm-flet, gmm-labels): New macros.

[Katsumi Yamaoka]

Katsumi Yamaoka wrote:
[...]
> No, it wasn't appropriate example.  Again I confirmed we have no
> replacement of flet.

> (defun my-message ()
>   (message "Hello"))

> (cl-flet ((message (&rest args) (concat "X " (apply #'format args))))
>   (my-message))
> "Hello"

> (flet ((message (&rest args) (concat "X " (apply #'format args))))
>   (my-message))
> "X Hello"

> Defadvice?  Uhm, that defadvice code exists in an official source
> code is very ugly, I feel. :<

I've temporarily replaced it in this way:

(let ((orig-FUNCTION (symbol-function 'FUNCTION)))
  (fet 'FUNCTION (lambda (arg) new definition))
  (unwind-protect
      (progn bla bla)
    (fset 'FUNCTION orig-FUNCTION)))