bug#61302: 29.0.60; rust-ts-mode does not show function-invocation on field-properties

[Dmitry Gutov <dgutov@yandex.ru>]

On 13/02/2023 21:57, Dmitry Gutov wrote:
> I didn't bother with assignments for now (in the absence of feature 
> requests), but they should be even easier to add.

E.g. like this:

diff --git a/lisp/progmodes/rust-ts-mode.el b/lisp/progmodes/rust-ts-mode.el
index 5c71a8ad461..f105c894b28 100644
--- a/lisp/progmodes/rust-ts-mode.el
+++ b/lisp/progmodes/rust-ts-mode.el
@@ -163,11 +163,15 @@ rust-ts-mode--font-lock-settings
       (macro_definition "macro_rules!" @font-lock-constant-face)
       (macro_definition (identifier) @font-lock-preprocessor-face)
       (field_declaration name: (field_identifier) @font-lock-property-face)
-     (parameter) @rust-ts-mode--fontify-pattern
-     (let_declaration) @rust-ts-mode--fontify-pattern
-     (for_expression) @rust-ts-mode--fontify-pattern
-     (let_condition) @rust-ts-mode--fontify-pattern
-     (match_arm) @rust-ts-mode--fontify-pattern)
+     (parameter pattern: (_) @rust-ts-mode--fontify-pattern)
+     (let_declaration pattern: (_) @rust-ts-mode--fontify-pattern)
+     (for_expression pattern: (_) @rust-ts-mode--fontify-pattern)
+     (let_condition pattern: (_) @rust-ts-mode--fontify-pattern)
+     (match_arm pattern: (_) @rust-ts-mode--fontify-pattern))
+
+   :language 'rust
+   :feature 'assignment
+   '(((assignment_expression left: (_) @rust-ts-mode--fontify-pattern)))

     :language 'rust
     :feature 'function
@@ -261,7 +265,7 @@ 'rust-ts-mode--fontify-pattern
     (treesit-available-p)
     `(lambda (node override start end &rest _)
        (let ((captures (treesit-query-capture
-                       (treesit-node-child-by-field-name node "pattern")
+                       node
                         ,(treesit-query-compile 'rust '((identifier) @id
 
(shorthand_field_identifier) @id)))))
          (pcase-dolist (`(_name . ,id) captures)
@@ -343,7 +347,7 @@ rust-ts-mode
                  '(( comment definition)
                    ( keyword string)
                    ( attribute builtin constant escape-sequence
-                    number type)
+                    number type assignment)
                    ( bracket delimiter error function operator property 
variable)))

      ;; Imenu.