Function useResolvedOptionalThreadInfos

lib/utils/entity-helpers.js:49–82

(
  threadInfos: ?$ReadOnlyArray<ThreadInfo>,
)

}

function useResolvedOptionalThreadInfos(
  threadInfos: ?$ReadOnlyArray<ThreadInfo>,
): ?$ReadOnlyArray<ResolvedThreadInfo> {
  const entityText = React.useMemo(() => {
    if (!threadInfos) {
      return null;
    }
    return threadInfos.map(threadInfo =>
      ET.thread({ display: 'uiName', threadInfo }),
    );
  }, [threadInfos]);
  const resolvedEntityText = useResolvedEntityText(entityText);
  return React.useMemo(() => {
    if (!threadInfos) {
      return threadInfos;
    }
    invariant(
      resolvedEntityText,
      'useResolvedEntityText only returns falsey when passed falsey',
    );
    return threadInfos.map((threadInfo, i) => {
      if (typeof threadInfo.uiName === 'string') {
        // Flow wants return { ...threadInfo, uiName: threadInfo.uiName }
        // but that's wasteful and unneeded, so we any-cast here
        return (threadInfo: any);
      }
      const resolvedThreadEntity = resolvedEntityText[i];
      return {
        ...threadInfo,
        uiName: entityTextToRawString([resolvedThreadEntity]),
      };
    });
  }, [threadInfos, resolvedEntityText]);
}

function useResolvedThreadInfosObj(
  threadInfosObj: {