WP_Textdomain_Registry

18#[AllowDynamicProperties]19class WP_Textdomain_Registry {20	/**21	 * List of domains and all their language directory paths for each locale.22	 *23	 * @since 6.1.024	 *25	 * @var array26	 */27	protected $all = array();28 29	/**30	 * List of domains and their language directory path for the current (most recent) locale.31	 *32	 * @since 6.1.033	 *34	 * @var array35	 */36	protected $current = array();37 38	/**39	 * List of domains and their custom language directory paths.40	 *41	 * @see load_plugin_textdomain()42	 * @see load_theme_textdomain()43	 *44	 * @since 6.1.045	 *46	 * @var array47	 */48	protected $custom_paths = array();49 50	/**51	 * Holds a cached list of available .mo files to improve performance.52	 *53	 * @since 6.1.054	 * @since 6.5.0 This property is no longer used.55	 *56	 * @var array57	 *58	 * @deprecated59	 */60	protected $cached_mo_files = array();61 62	/**63	 * Holds a cached list of domains with translations to improve performance.64	 *65	 * @since 6.2.066	 *67	 * @var string[]68	 */69	protected $domains_with_translations = array();70 71	/**72	 * Initializes the registry.73	 *74	 * Hooks into the {@see 'upgrader_process_complete'} filter75	 * to invalidate MO files caches.76	 *77	 * @since 6.5.078	 */79	public function init() {80		add_action( 'upgrader_process_complete', array( $this, 'invalidate_mo_files_cache' ), 10, 2 );81	}82 83	/**84	 * Returns the languages directory path for a specific domain and locale.85	 *86	 * @since 6.1.087	 *88	 * @param string $domain Text domain.89	 * @param string $locale Locale.90	 *91	 * @return string|false Languages directory path or false if there is none available.92	 */93	public function get( $domain, $locale ) {94		$path = $this->all[ $domain ][ $locale ] ?? $this->get_path_from_lang_dir( $domain, $locale );95 96		/**97		 * Filters the determined languages directory path for a specific domain and locale.