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

[Dmitry Gutov <dgutov@yandex.ru>]

Hi Randy,

Maybe I was too quick to commit the change. But let's discuss it.

On 05/02/2023 23:30, Randy Taylor wrote:
> That's expected (at least to me) because it's a property.

It's both a property and a function, isn't it?

> The same 
> applies to c-ts-mode and go-ts-mode as well.

Regarding c-ts-mode, it might be a simple oversight, given that 
constructs like

   p->handler (it)

do not come up very often. But if we take js-ts-mode, for example, where 
a property is often a function, the property name is highlighted as a 
function in a funcall.

And speaking of c-ts-mode, this can fix that omission:

diff --git a/lisp/progmodes/c-ts-mode.el b/lisp/progmodes/c-ts-mode.el
index 5093c3980b6..3740130be30 100644
--- a/lisp/progmodes/c-ts-mode.el
+++ b/lisp/progmodes/c-ts-mode.el
@@ -470,7 +470,9 @@ c-ts-mode--font-lock-settings
     :language mode
     :feature 'function
     '((call_expression
-      function: (identifier) @font-lock-function-name-face))
+      function:
+      [(identifier) @font-lock-function-name-face
+       (field_expression field: (field_identifier) 
@font-lock-function-name-face)]))

     :language mode
     :feature 'variable