Ticket #42270: 42270.patch

wp-includes/widgets.php

@@ -100 +100 @@
  * Registers a WP_Widget widget
  *
  * @since 2.8.0
+ * @since 4.6.0 The `$widget` parameter also accepts a WP_Widget instance object
+ *              instead of simply a `WP_Widget` subclass name.
  *
  * @see WP_Widget
  *
  * @global WP_Widget_Factory $wp_widget_factory
  *
- * @param string $widget_class The name of a class that extends WP_Widget
+ * @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.
  */
-function register_widget($widget_class) {
+function register_widget( $widget ) {
         global $wp_widget_factory;
 
-        $wp_widget_factory->register($widget_class);
+        $wp_widget_factory->register( $widget );
 }
 
 /**
@@ -120 +122 @@
  * Run within a function hooked to the {@see 'widgets_init'} action.
  *
  * @since 2.8.0
+ * @since 4.6.0 The `$widget` parameter also accepts a WP_Widget instance object
+ *              instead of simply a `WP_Widget` subclass name.
  *
  * @see WP_Widget
  *
  * @global WP_Widget_Factory $wp_widget_factory
  *
- * @param string $widget_class The name of a class that extends WP_Widget.
+ * @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.
  */
-function unregister_widget($widget_class) {
+function unregister_widget( $widget ) {
         global $wp_widget_factory;
 
-        $wp_widget_factory->unregister($widget_class);
+        $wp_widget_factory->unregister( $widget );
 }
 
 /**