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rust: Improve highlighting within macros (#37049)

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This makes sure we do not apply the highlights for snake case
identifiers as well as paths for attributes too broadly to all types of
macros, which should make macros much more readable overall whilst
keeping the highlighting for the attribute items.

| Before | After |
| --- | --- |
| <img width="1414" height="958" alt="Bildschirmfoto 2025-08-28 um 00 37
58"
src="https://github.com/user-attachments/assets/1254b9a2-d07a-4be4-9b4f-555a7c640302"
/> | <img width="1414" height="958" alt="Bildschirmfoto 2025-08-28 um 00
37 38"
src="https://github.com/user-attachments/assets/5f6dd66c-5469-4f27-9f1d-0a6e6e8d8085"
/> |

Release Notes:

- rust: Improved highlighting within macros.
This commit is contained in:
Finn Evers
2025-08-28 00:57:08 +02:00
committed by GitHub
parent 48299b5b24
commit 9a97f9465b
1 changed files with 5 additions and 4 deletions
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crates/languages/src/rust/highlights.scm
+5 -4
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@@ -195,12 +195,13 @@ operator: "/" @operator
(attribute_item (attribute [
(identifier) @attribute
(scoped_identifier name: (identifier) @attribute)
(token_tree (identifier) @attribute (#match? @attribute "^[a-z\\d_]*$"))
(token_tree (identifier) @variable "::" (identifier) @type (#match? @type "^[A-Z]"))
]))
(inner_attribute_item (attribute [
(identifier) @attribute
(scoped_identifier name: (identifier) @attribute)
(token_tree (identifier) @attribute (#match? @attribute "^[a-z\\d_]*$"))
(token_tree (identifier) @variable "::" (identifier) @type (#match? @type "^[A-Z]"))
]))
; Match nested snake case identifiers in attribute items.
(token_tree (identifier) @attribute (#match? @attribute "^[a-z\\d_]*$"))
; Override the attribute match for paths in scoped type/enum identifiers.
(token_tree (identifier) @variable "::" (identifier) @type (#match? @type "^[A-Z]"))