Highlight not working properly for embedded heex

[davidahmed]

I am on GNU Emacs 30.0.5 (Mac OS Ventura). I have the most minimal setup (basic theming).

I add only the following to my init.el

(use-package elixir-ts-mode
    :ensure t)

With just the above two lines, the Elixir code is highlighted as expected, however, the embedded heex is not highlighted properly.

What am I missing here?

[wkirschbaum]

@davidahmed What do you mean by "properly"?

Note for emacs 30 elixir-ts-mode and heex-ts-mode's are part of emacs core. you can just add:

(require 'heex-ts-mode)
(require 'elixir-ts-mode)

and it should work.

[davidahmed]

Sorry, I was not clear enough. This is what I mean by not working properly. Basically, the highlights are missing for Elixir that is embedded inside the heex.

[wkirschbaum]

@davidahmed is currently a limitation with the heex tree-sitter grammar. We can potentially override the heex fontification, but won't happen soon.

[wkirschbaum]

Related elixir-lang/tree-sitter-elixir#2