Function collectScopedNodes

packages/react-reconciler/src/ReactFiberScope.js:33–58

(
  node: Fiber,
  fn: ReactScopeQuery,
  scopedNodes: Array<any>,
)

const emptyObject = {};

function collectScopedNodes(
  node: Fiber,
  fn: ReactScopeQuery,
  scopedNodes: Array<any>,
): void {
  if (enableScopeAPI) {
    if (node.tag === HostComponent) {
      const {type, memoizedProps, stateNode} = node;
      const instance = getPublicInstance(stateNode);
      if (
        instance !== null &&
        fn(type, memoizedProps || emptyObject, instance) === true
      ) {
        scopedNodes.push(instance);
      }
    }
    let child = node.child;

    if (isFiberSuspenseAndTimedOut(node)) {
      child = getSuspenseFallbackChild(node);
    }
    if (child !== null) {
      collectScopedNodesFromChildren(child, fn, scopedNodes);
    }
  }
}

function collectFirstScopedNode(
  node: Fiber,