Function useMemoCache

docs/index.js:7357–7390

(size)

  throw Error(formatProdErrorMessage(438, String(usable)));
}
function useMemoCache(size) {
  var memoCache = null,
    updateQueue = currentlyRenderingFiber$1.updateQueue;
  null !== updateQueue && (memoCache = updateQueue.memoCache);
  if (null == memoCache) {
    var current = currentlyRenderingFiber$1.alternate;
    null !== current &&
      ((current = current.updateQueue),
      null !== current &&
        ((current = current.memoCache),
        null != current &&
          (memoCache = {
            data: current.data.map(function (array) {
              return array.slice();
            }),
            index: 0
          })));
  }
  null == memoCache && (memoCache = { data: [], index: 0 });
  null === updateQueue &&
    ((updateQueue = createFunctionComponentUpdateQueue()),
    (currentlyRenderingFiber$1.updateQueue = updateQueue));
  updateQueue.memoCache = memoCache;
  updateQueue = memoCache.data[memoCache.index];
  if (void 0 === updateQueue)
    for (
      updateQueue = memoCache.data[memoCache.index] = Array(size), current = 0;
      current < size;
      current++
    )
      updateQueue[current] = REACT_MEMO_CACHE_SENTINEL;
  memoCache.index++;
  return updateQueue;
}
function basicStateReducer(state, action) {
  return "function" === typeof action ? action(state) : action;
}