`rustCommentLineDoc` doesn't work

[Myshko Dm]

Describe the bug
Changing rustCommentLineDoc doesn't change rust doc comments color.

To Reproduce
Steps to reproduce the behavior:

1. Set rustCommentLineDoc = { link = 'GruvboxOrange' } in config, like this:

require('gruvbox').setup {
  overrides = {
    rustCommentLineDoc = { link = 'GruvboxOrange' },
  }
}

2. Open any rust file with doc comments.
3. Doc comment's color is gray, not GruvboxOrange, as was expected.

Expected behavior
Doc comments in rust to be GruvboxOrange color.

Screenshots
Expected:

Actual:

Additional context
Neovim v0.9.0
ellisonleao/gruvbox.nvim version: e685aeb

[Ellison]

@dmyTRUEk can you verify if the semantic highlight group (@lsp.*) is being applied by calling :Inspect with the cursor over the comment string please?

[Myshko Dm]

Output of the :Inspect command on both file header and doc comment:

Treesitter
  - @comment.rust links to Comment rust
  - @spell.rust links to @spell rust
  - @comment.documentation.rust links to Comment rust

Semantic Tokens
  - @lsp.type.comment.rust links to Comment priority: 125
  - @lsp.mod.documentation.rust links to @lsp priority: 126
  - @lsp.typemod.comment.documentation.rust links to @lsp priority: 127

and on the (simple, plain) comment:

Treesitter
  - @comment.rust links to Comment rust
  - @spell.rust links to @spell rust

Semantic Tokens
  - @lsp.type.comment.rust links to Comment priority: 125

So as I understand semantic highlight group (@lsp.*) is applied on all three comment types.

[Andreas Schneider]

Have you tried setting:

require('gruvbox').setup {
  overrides = {
    ['@comment.rust'] = { link = 'GruvboxOrange' },
    ['@lsp.type.comment.rust'] = { link = 'GruvboxOrange' },
  }
}

[Myshko Dm]

I tried

require('gruvbox').setup {
  overrides = {
    ['@comment.rust'] = { link = 'GruvboxYellow' },
    ['@lsp.type.comment.rust'] = { link = 'GruvboxOrange' },
  }
}

(set different colors to differentiate them) but with this configuration:

1. at first few seconds (while rust-analyzer (rust's language server) is loading):
   • doc comments - gray
   • simple comments - GruvboxYellow
2. and after few seconds (when rust-analyzer is loaded):
   • doc comments - GruvboxOrange (as desired)
   • simple comments - GruvboxOrange (not as desired)

---

After some tweaking i found that this works as desired:

require('gruvbox').setup {
  overrides = {
    ['@lsp.type.comment.rust'] = { link = 'GruvboxYellow' },
    ['@lsp.typemod.comment.documentation.rust'] = { link = 'GruvboxOrange' },
  }
}

With this configuration:

1. at first few seconds (while rust-analyzer is loading):
   • doc comments - gray
   • simple comments - gray
2. and after few seconds (when rust-analyzer is loaded):
   • doc comments - GruvboxOrange (as desired)
   • simple comments - GruvboxYellow (as desired)

---

So then rustCommentLineDoc is broken (because it doesn't change doc comments color), right?

[Ellison]

@dmyTRUEk yep, looks like that highlight group won't be used on treesitter+semantic highlights environments. We can probably remove it