getParentOfChild method

DeepNavigationNode<T> getParentOfChild(
  1. DeepNavigationNode<T> child
)

Implementation

DeepNavigationNode<T> getParentOfChild(DeepNavigationNode<T> child) {
  assert(getChildAtLevel(child.level) == child);
  assert(child.level > level);
  return getChildAtLevel(child.level - 1);
}