Okay, I figured out how to do it:
   :language 'php
   :feature 'attribute
   '((((attribute (_) @attribute_name) @font-lock-preprocessor-face)
(:match "Deprecated" @attribute_name)))

However, I cannot understand why "treesit-query-validate" says the query is
correct, but I get an error.

Thank you.
Vincenzo

Il giorno sab 25 feb 2023 alle ore 16:33 Vincenzo Pupillo <
v.pupillo@gmail.com> ha scritto:

> Hi,
> I'm trying to understand how treesit-font-lock-settings works.
> PHP supports annotations for classes, methods, functions, parameters,
> properties and class constants, for e.g (this test come from php-mode):
>
> <?php
>
> #[
>  Deprecated
> ]
> function f($arg1,
>  #[Deprecated] $arg2){}
> #Deprecated <-- this is a comment
>
> I would like to highlight the "Deprecated" annotation.
> "treesit-query-validation" says that this query is valid:
> (treesit-query-validate 'php
> '((attribute (name (:match "Deprecated"))
> @font-lock-comment-delimiter-face))
>
> This is the rule I wrote:
>    :language 'php
>    :feature 'attribute
>    '((attribute (name (:match "Deprecated"))) @font-lock-comment-delimiter-
> face)
>
>
> When I use my "php-ts-mode" on that code snippet, emacs reports the
> following
> errors:
> Error during display: (jit-lock-function 1) reported (treesit-query-error
> "Predicate `equal' requires two arguments but only given" 1)
> Error during display: (jit-lock-function 6) reported (treesit-query-error
> "Predicate `equal' requires two arguments but only given" 1)
> Set report [2 times]
>
> Is this a bug or am I doing something wrong?
> My "php-ts-mode" works quite well. Except for the annotations the syntax
> highlighting is as good as php-mode.
>
> Thank you.
>
> Vincenzo
>