Add font-locking for typed parameters in python-ts-mode (bug#70665)

* lisp/progmodes/python.el (python--treesit-settings): Add
tree-sitter font-locking rule for typed parameters.
* test/lisp/progmodes/python-tests.el
(python-ts-mode-types-face-1): Test for
font-lock-variable-name-face in typed parameter.

2 files changed, 4 insertions, 0 deletions

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index d6c29e5ffc6..4ff5e9d4878 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -1202,6 +1202,7 @@ fontified."
      (class_definition
       name: (identifier) @font-lock-type-face)
      (parameters (identifier) @font-lock-variable-name-face)
+     (parameters (typed_parameter (identifier) @font-lock-variable-name-face))
      (parameters (default_parameter name: (identifier) @font-lock-variable-name-face)))
 
    :feature 'builtin
diff --git a/test/lisp/progmodes/python-tests.el b/test/lisp/progmodes/python-tests.el
index e11440cdb5b..878f60f1614 100644
--- a/test/lisp/progmodes/python-tests.el
+++ b/test/lisp/progmodes/python-tests.el
@@ -7545,6 +7545,9 @@ always located at the beginning of buffer."
 (ert-deftest python-ts-mode-types-face-1 ()
   (python-ts-tests-with-temp-buffer
    "def f(val: Callable[[Type0], (Type1, Type2)]):"
+   (search-forward "val")
+   (goto-char (match-beginning 0))
+   (should (eq (face-at-point) font-lock-variable-name-face))
    (dolist (test '("Callable" "Type0" "Type1" "Type2"))
      (search-forward test)
      (goto-char (match-beginning 0))