Function dispatchFetch

packages/react-stately/src/data/useAsyncList.ts:300–327

(action: Action<T, C>, fn: AsyncListLoadFunction<T, C>)

  });

  const dispatchFetch = async (action: Action<T, C>, fn: AsyncListLoadFunction<T, C>) => {
    let abortController = new AbortController();
    try {
      dispatch({...action, abortController});
      let previousFilterText = action.filterText ?? data.filterText;

      let response = await fn({
        items: data.items.slice(),
        selectedKeys: data.selectedKeys,
        sortDescriptor: action.sortDescriptor ?? data.sortDescriptor,
        signal: abortController.signal,
        cursor: action.type === 'loadingMore' ? data.cursor : undefined,
        filterText: previousFilterText,
        loadingState: data.state
      });

      let filterText = response.filterText ?? previousFilterText;
      dispatch({type: 'success', ...response, abortController});

      // Fetch a new filtered list if filterText is updated via `load` response func rather than list.setFilterText
      // Only do this if not aborted (e.g. user triggers another filter action before load completes)
      if (filterText && filterText !== previousFilterText && !abortController.signal.aborted) {
        dispatchFetch({type: 'filtering', filterText}, load);
      }
    } catch (e) {
      dispatch({type: 'error', error: e as Error, abortController});
    }
  };

  let didDispatchInitialFetch = useRef(false);
  useEffect(() => {