GNU bug report logs - #65470
29.1.50; js-ts-mode: regex pattern can cause incorrect parenthesis matching

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: casouri <at> gmail.com, 65470 <at> debbugs.gnu.org, theo <at> thornhill.no, Dmitry Gutov <dmitry <at> gutov.dev>, jostein <at> secure.kjonigsen.net, btuin <at> mailo.com, jostein <at> kjonigsen.net
Subject: bug#65470: 29.1.50; js-ts-mode: regex pattern can cause incorrect parenthesis matching
Date: Sat, 16 Sep 2023 09:59:11 -0400

>> No problem, pushed that to emacs-29, thanks.
>
> This seems to cause:
>
>     INFO     Scraping files for loaddefs...85%
>   typescript-ts-mode:0: Warning: Not registering prefix "ts".  Affects: ("tsx-ts-mode--indent-compatibility-b893426" "tsx-ts-mode--font-lock-compatibility-bb1f97b" "tsx-ts--s-p-query" "tsx-ts--syntax-propertize" "ts-ts--s-p-query" "ts-ts--syntax-propertize" "ts-ts--syntax-propertize-captures")
>
> Stefan, what do we usually do with such warnings?

We usually ignored them?
[ They only affect the features controlled by
  `help-enable-(completion-)autoload`.  ]

A better option, is to try and use fewer namespace prefixes.
e.g. make sure all the definitions start with `ts-`, `ts-ts-`,
`tsts-`, or somesuch (except for the autoloaded ones which can break
that rule).

Maybe rename `typescript-ts-mode-*` to `ts-ts-mode-*` (and
make `typescript-ts-mode` an alias of `ts-ts-mode`).


        Stefan


diff --git a/lisp/progmodes/typescript-ts-mode.el b/lisp/progmodes/typescript-ts-mode.el
index 7c85a7b6fe9..8c50b55535b 100644
--- a/lisp/progmodes/typescript-ts-mode.el
+++ b/lisp/progmodes/typescript-ts-mode.el
@@ -87,7 +87,7 @@ tsx-ts-mode--indent-compatibility-b893426
       (progn (treesit-query-capture 'tsx '((jsx_fragment) @capture))
              `(((match "<" "jsx_fragment") parent 0)
                ((parent-is "jsx_fragment") parent typescript-ts-mode-indent-offset)))
-    (error
+    (error ;; FIXME: Use more precise error name.
      `(((match "<" "jsx_text") parent 0)
        ((parent-is "jsx_text") parent typescript-ts-mode-indent-offset)))))
 
@@ -414,8 +414,11 @@ typescript-ts-mode--sexp-nodes
   "Nodes that designate sexps in TypeScript.
 See `treesit-thing-settings' for more information.")
 
+;; FIXME: Do we really need to autoload this?
 ;;;###autoload
 (define-derived-mode typescript-ts-base-mode prog-mode "TypeScript"
+  ;; FIXME: This is the same docstring as `typescript-ts-mode',
+  ;; we should document the difference here!
   "Major mode for editing TypeScript."
   :group 'typescript
   :syntax-table typescript-ts-mode--syntax-table

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