Method updateRoot

src/core/context/node.js:332–348

* @param {?ContextNode<?>} root * @protected Used cross-binary.

(root)

   * @protected Used cross-binary.
   */
  updateRoot(root) {
    devAssert(!root || root.isRoot);
    const oldRoot = this.root;
    if (root != oldRoot) {
      // The root has changed.
      this.root = root;

      // Make sure the tree changes have been reflected for values.
      this.values.rootUpdated();

      // Make sure the tree changes have been reflected for subscribers.
      this.subscribers_?.forEach((comp) => comp.rootUpdated());

      // Propagate the root to the subtree.
      this.children?.forEach((child) => child.updateRoot(root));
    }
  }

  /**
   * @param {string} name