Subject: bug#46713: 27.1; Variable binding depth exceeds max-specpdl-size in js-mode with js-indent-level 2 and indent-tabs-mode nil on new line

From: Lars Ingebrigtsen <[email-masked]>
Date: Tue, 23 Feb 2021 16:36:21 +0100

Ryan Olson <[email-masked]> writes:

> Repro steps:
> 1. Open foo.js with emacs -Q --eval '(setq-default js-indent-level 2
> indent-tabs-mode nil)' foo.js
> 2. Go to line 61
> 3. Delete brace at end of that line
> 4. Save
> 5. Add brace back
> 6. Press RET
> 7. Errors happen

Thanks for the clear recipe.  With it, I'm also seeing errors (in both
Emacs 27 and 28):

Debugger entered--Lisp error: (error "internal--syntax-propertize did not move syntax-pr...")
  backward-prefix-chars()
  back-to-indentation()
  current-left-margin()
  move-to-left-margin(nil t)
  #f(compiled-function () #<bytecode 0x155c01f42651>)()
  self-insert-command(1)
  newline(nil 1)
  funcall-interactively(newline nil 1)
  call-interactively(newline nil nil)

But I'm not seeing the "binding depth" one.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no