function MenuLinkTree::transform

Overrides MenuLinkTreeInterface::transform

File

core/lib/Drupal/Core/Menu/MenuLinkTree.php, line 138

Class

MenuLinkTree

Implements the loading, transforming and rendering of menu link trees.

Namespace

Code

public function transform(array $tree, array $manipulators) {
    foreach ($manipulators as $manipulator) {
        $callable = $manipulator['callable'];
        $callable = $this->controllerResolver
            ->getControllerFromDefinition($callable);
        // Prepare the arguments for the menu tree manipulator callable; the first
        // argument is always the menu link tree.
        if (isset($manipulator['args'])) {
            array_unshift($manipulator['args'], $tree);
            $tree = call_user_func_array($callable, $manipulator['args']);
        }
        else {
            $tree = call_user_func($callable, $tree);
        }
    }
    return $tree;
}