Highlight mutable variables

[palango]

In VSCode mutable vars can be highlighted distinctly from immutable vars:

This would be nice to have in Helix as well.

[KMikeeU]

That depends on your theme, you can reference and style the mut keyword using keyword.storage.modifier.mut

[SoraTenshi]

i have already a pr that would somewhat addresses this.
I am not sure how i feel about selecting only mutable variables, as this would be pretty much only applicable to rust.

#6197

[palango]

I am not sure how i feel about selecting only mutable variables, as this would be pretty much only applicable to rust.

The same distinction exists in other languages as well, like var and val in Kotlin, so I think it can be generalized.

[KMikeeU]

it is only possible to color mut instead of variable name depending on mut type.

Is this maybe what this TODO by @archseer is referring to?

helix/runtime/queries/rust/highlights.scm

Line 183 in bff7fc8

; TODO: variable.mut to highlight mutable identifiers via locals.scm