Subject: bug#41649: 27.0.91; beginning-of-defun doesn't work inside React markup in js-jsx-mode

From: Dmitry Gutov <[email-masked]>
Date: Wed, 3 Jun 2020 00:43:32 +0300

Hi Alan,

On 02.06.2020 20:12, Alan Mackenzie wrote:
> The problem seems to stem from the top-level function #'js-mode.  Early
> on, it invokes
> 
>      (c-init-language-vars js-mode)
> 
> , which initialises the CC Mode language variables to (mostly) their
> Java Mode values.  js-mode continues by overwriting the local value of
> quite a few of these variables, including beginning-of-defun-function.
> 
> js-mode then invokes
> 
>      (c-init-language-vars js-mode)
> 
> a second time, which initialises the language variables again, in
> particular, those variables which just got a local value, including
> beginning-of-defun-function.
> 
> Daniel, what is going on, here?  Is this just a simple coding error,
> where the second c-init-language-vars should have been removed at some
stage?

I agree that the second call should be removed.

You might be amused to look at the commit 4ad6c932a82, though, and see 
who the author is. :-)