Method updateTree_

src/core/context/node.js:457–492

* @param {?ContextNode<?>} parent * @param {boolean} parentOverridden * @private

(parent, parentOverridden)

   * @private
   */
  updateTree_(parent, parentOverridden) {
    this.parentOverridden_ = parentOverridden;

    const oldParent = this.parent;
    if (parent != oldParent) {
      // The parent has changed.
      this.parent = parent;

      // Remove from the old parent.
      if (oldParent?.children) {
        devAssert(oldParent.children);
        removeItem(oldParent.children, this);
      }

      // Add to the new parent.
      if (parent) {
        const parentChildren = parent.children || (parent.children = []);
        pushIfNotExist(parentChildren, this);

        // Check if this node has been inserted in between the parent and
        // it's other children.
        // Since the new parent (`this`) is already known, this is a very
        // fast operation.
        for (const child of parentChildren) {
          if (child != this && child.isDiscoverable()) {
            child.discover();
          }
        }
      }

      this.values.parentUpdated();
    }

    // Check the root.
    this.updateRoot(parent?.root ?? null);
  }
}

/**