Improve fontification of typescript-ts-mode (bug#59831)

- Highlight property and field definitions in class declaration.
- Highlight property-keys in object initializaters.
- Highlight variable-names in function/method return-statements.

* lisp/progmodes/typescript-ts-mode.el
(typescript-ts-mode--font-lock-settings): Add fontification rules.

1 files changed, 16 insertions, 2 deletions

diff --git a/lisp/progmodes/typescript-ts-mode.el b/lisp/progmodes/typescript-ts-mode.el
index 48ac1169fe8..3da690567e2 100644
--- a/lisp/progmodes/typescript-ts-mode.el
+++ b/lisp/progmodes/typescript-ts-mode.el
@@ -213,7 +213,14 @@ Argument LANGUAGE is either `typescript' or `tsx'."
       parameters:
       [(_ (identifier) @font-lock-variable-name-face)
        (_ (_ (identifier) @font-lock-variable-name-face))
-       (_ (_ (_ (identifier) @font-lock-variable-name-face)))]))
+       (_ (_ (_ (identifier) @font-lock-variable-name-face)))])
+
+     (return_statement (identifier) @font-lock-variable-name-face)
+
+     (binary_expression left: (identifier) @font-lock-variable-name-face)
+     (binary_expression right: (identifier) @font-lock-variable-name-face)
+
+     (arguments (identifier) @font-lock-variable-name-face))
 
    :language language
    :override t
@@ -282,7 +289,14 @@ Argument LANGUAGE is either `typescript' or `tsx'."
    :language language
    :override t
    :feature 'property
-   `((pair value: (identifier) @font-lock-variable-name-face)
+   `((property_signature
+      name: (property_identifier) @font-lock-property-face)
+     (public_field_definition
+      name: (property_identifier) @font-lock-property-face)
+
+     (pair key: (property_identifier) @font-lock-variable-name-face)
+
+     (pair value: (identifier) @font-lock-variable-name-face)
 
      ((shorthand_property_identifier) @font-lock-property-face)