Method getTreeNode

packages/react-aria/src/focus/FocusScope.tsx:1028–1030

(data: ScopeRef)

  }

  getTreeNode(data: ScopeRef): TreeNode | undefined {
    return this.fastMap.get(data);
  }

  addTreeNode(scopeRef: ScopeRef, parent: ScopeRef, nodeToRestore?: FocusableElement): void {
    let parentNode = this.fastMap.get(parent ?? null);