bug#65895: 29.1; Cannot assign keys to c++-ts-mode-map

[Eli Zaretskii <eliz@gnu.org>]

> Date: Tue, 12 Sep 2023 17:00:06 +0000
> From:  Mikael Springer via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> 
> 
> In my init file I try to assign keys to c++-ts-mode's keymap without
> success. I try two different ways, the first is using use-package and
> the second eval-after-load and define-key, neither of them work. I
> list them both below;
> 
> (use-package c++-ts-mode
> :ensure nil
> :bind
> (:map c++-ts-mode-map
> ("M-<up>" . treesit-beginning-of-defun)
> ("M-<down>" . treesit-end-of-defun))
> :hook (c++-ts-mode . ms-treesit-set-cpp-style))
> 
> (eval-after-load 'c++-ts-mode
> '(progn
> (define-key c++-ts-mode-map (kbd "M-<up>") 'treesit-beginning-of-defun)
> (define-key c++-ts-mode-map (kbd "M-<down>") 'treesit-end-of-defun)))
> 
> I'm certain c++-ts-mode is loaded, I have verified this with
> (eval-expression major-mode). I notice when I look in the code in
> c-ts-mode.el that c++-ts-mode-map is never created with a defvar-keymap
> statement, only c-ts-base-mode-map is.

Thanks, should be fixed now on the emacs-29 branch.