Function poll

packages/react-devtools-shared/src/inspectedElementCache.js:250–282

()

  }

  function poll(): Promise<void> {
    status = 'running';

    return Promise.allSettled([
      checkForUpdate({bridge, element, refresh, store}),
      createPromiseWhichResolvesInOneSecond(),
    ])
      .then(([{status: updateStatus, reason}]) => {
        // There isn't much to do about errors in this case,
        // but we should at least log them, so they aren't silent.
        // Log only if polling is still active, we can't handle the case when
        // request was sent, and then bridge was remounted (for example, when user did navigate to a new page),
        // but at least we can mark that polling was aborted
        if (updateStatus === 'rejected' && status !== 'aborted') {
          // This is expected Promise rejection, no need to log it
          if (reason instanceof ElementPollingCancellationError) {
            return;
          }

          console.error(reason);
        }
      })
      .finally(() => {
        const shouldContinuePolling =
          status !== 'aborted' && status !== 'paused';

        status = 'idle';

        if (shouldContinuePolling) {
          return poll();
        }
      });
  }

  poll();