Function updateHostContainer

packages/react-reconciler/src/ReactFiberCompleteWork.js:428–451

(current: null | Fiber, workInProgress: Fiber)

}

function updateHostContainer(current: null | Fiber, workInProgress: Fiber) {
  if (supportsPersistence) {
    if (doesRequireClone(current, workInProgress)) {
      const portalOrRoot: {
        containerInfo: Container,
        pendingChildren: ChildSet,
        ...
      } = workInProgress.stateNode;
      const container = portalOrRoot.containerInfo;
      const newChildSet = createContainerChildSet();
      // If children might have changed, we have to add them all to the set.
      appendAllChildrenToContainer(
        newChildSet,
        workInProgress,
        /* needsVisibilityToggle */ false,
        /* isHidden */ false,
      );
      portalOrRoot.pendingChildren = newChildSet;
      // Schedule an update on the container to swap out the container.
      markUpdate(workInProgress);
      finalizeContainerChildren(container, newChildSet);
    }
  }
}

function updateHostComponent(
  current: Fiber,