_wp_reset_invalid_menu_item_parent()
Function: Prevents menu items from being their own parent.
Source: wp-includes/nav-menu.php:1294
update_menu_item_cache()
Function: Updates post and term caches for all linked objects for a list of menu items.
Source: wp-includes/nav-menu.php:767
wp_nav_menu_remove_menu_item_has_children_class()
Function: Remove the `menu-item-has-children` class from bottom level menu items.
Source: wp-includes/nav-menu-template.php:659
_wp_menus_changed()
Function: Handles menu config after theme change.
Source: wp-includes/nav-menu.php:1174
wp_map_nav_menu_locations()
Function: Maps nav menu locations according to assignments in previously active theme.
Source: wp-includes/nav-menu.php:1192
Walker_Nav_Menu
Class: Core class used to implement an HTML list of nav menu items.
Source: wp-includes/class-walker-nav-menu.php:17
Walker_Nav_Menu::start_lvl()
Method: Starts the list before the elements are added.
Source: wp-includes/class-walker-nav-menu.php:53
nav_menu_submenu_css_class
Filter Hook: Filters the CSS class(es) applied to a menu list element.
Source: wp-includes/class-walker-nav-menu.php:75
Walker_Nav_Menu::end_lvl()
Method: Ends the list of after the elements are added.
Source: wp-includes/class-walker-nav-menu.php:92
Walker_Nav_Menu::start_el()
Method: Starts the element output.
Source: wp-includes/class-walker-nav-menu.php:120