hook_toolbar_alter(&$items) Alter the toolbar menu after

Extends MenuLinkTree to add specific theme suggestions for the toolbar. Hierarchy class

toolbar_get_rendered_subtrees() Returns the rendered subtree of each top-level toolbar link.

public AllowToolbarPath::check(Request $request)

protected static Toolbar::moduleHandler() Wraps

protected static Toolbar::breakpointManager()

_toolbar_get_subtrees_hash() Returns the hash of the per-user rendered toolbar subtrees.

_toolbar_do_get_rendered_subtrees(array $data) #pre_render callback for

block_place_toolbar in core/modules/block_place/

public SetSubtreesCommand::render()