Files
wordpress/wp-includes
hellofromTonya 652f2244c6 Themes: Add static cache variable to wp_theme_has_theme_json().
For performance, a static variable is added to `wp_theme_has_theme_json()` to cache the boolean result of determining if a theme (or its parent) has a `theme.json` file. 

This cache avoids the overhead of calling `get_stylesheet_directory()` and `get_template_directory()` each time `wp_theme_has_theme_json()` is invoked.

The cache is lean, non-persistent, and encapsulated within the function (i.e. function scope and not available externally).

The cache is ignored when:
* `WP_DEBUG` is on to avoid interrupting theme developer's workflow and for extender automated test suites.
* `WP_RUN_CORE_TESTS` is on to ensure each Core test exercises the checking code.

Follow-up to [55092], [55086].

Props oandregal, azaozz, costdev, dmsnell, flixos90, hellofromTonya, Otto42, spacedmonkey.
Fixes #56975.
Built from https://develop.svn.wordpress.org/trunk@55138


git-svn-id: http://core.svn.wordpress.org/trunk@54671 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-01-25 19:38:14 +00:00
..
2023-01-18 21:59:13 +00:00