Function updateHostHoistable

packages/react-reconciler/src/ReactFiberBeginWork.js:1999–2044

(
  current: null | Fiber,
  workInProgress: Fiber,
  renderLanes: Lanes,
)

}

function updateHostHoistable(
  current: null | Fiber,
  workInProgress: Fiber,
  renderLanes: Lanes,
) {
  markRef(current, workInProgress);

  if (current === null) {
    const resource = getResource(
      workInProgress.type,
      null,
      workInProgress.pendingProps,
      null,
    );
    if (resource) {
      workInProgress.memoizedState = resource;
    } else {
      if (!getIsHydrating()) {
        // This is not a Resource Hoistable and we aren't hydrating so we construct the instance.
        workInProgress.stateNode = createHoistableInstance(
          workInProgress.type,
          workInProgress.pendingProps,
          getRootHostContainer(),
          workInProgress,
        );
      }
    }
  } else {
    // Get Resource may or may not return a resource. either way we stash the result
    // on memoized state.
    workInProgress.memoizedState = getResource(
      workInProgress.type,
      current.memoizedProps,
      workInProgress.pendingProps,
      current.memoizedState,
    );
  }

  // Resources never have reconciler managed children. It is possible for
  // the host implementation of getResource to consider children in the
  // resource construction but they will otherwise be discarded. In practice
  // this precludes all but the simplest children and Host specific warnings
  // should be implemented to warn when children are passsed when otherwise not
  // expected
  return null;
}

function updateHostSingleton(
  current: Fiber | null,