On Tue, Dec 6, 2022 at 3:36 PM Stefan Monnier <monnier@iro.umontreal.ca>
wrote:

> > However, if those functions are bound to `beginning-of-defun-function'
> > and `end-of-defun-function',
>
> Could you clarify?
> `beginning-of-defun-function' is a variable holding a function.
> Keys can be bound neither to that variable nor to the function it holds
> (because it's not a command).
> And functions usually aren't "bound" either.
>

 Please ignore my wrong use of terminology. This is what I mean:

(keymap-set bash-ts-mode-map "C-M-a" #'sh-mode--treesit-beginning-of-defun)
(keymap-set bash-ts-mode-map "C-M-e" #'sh-mode--treesit-end-of-defun)

If the above code is evaluated as part of bash-ts-mode startup,
invoking C-M-a/e does as intended by the new functions.

However, if the variables `beginning-of-defun-function' &
`end-of-defun-function' are set as in:

(setq-local beginning-of-defun-function
#'sh-mode--treesit-beginning-of-defun)
(setq-local end-of-defun-function #'sh-mode--treesit-end-of-defun)

C-M-a works as intended, but C-M-e with negative arguments does not.

-- 
João Paulo L. de Carvalho
Ph.D Computer Science |  IC-UNICAMP | Campinas , SP - Brazil
Postdoctoral Research Fellow | University of Alberta | Edmonton, AB - Canada
joao.carvalho@ic.unicamp.br
joao.carvalho@ualberta.ca