function MenuLinkTree::transform

File

core/lib/Drupal/Core/Menu/MenuLinkTree.php, line 104

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 = $this->callableResolver
      ->getCallableFromDefinition($manipulator['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;
}