Function workLoop

dash/deps/react@16.14.0.js:2611–2666

(hasTimeRemaining, initialTime)

  }

  function workLoop(hasTimeRemaining, initialTime) {
    var currentTime = initialTime;
    advanceTimers(currentTime);
    currentTask = peek(taskQueue);

    while (currentTask !== null && !(enableSchedulerDebugging )) {
      if (currentTask.expirationTime > currentTime && (!hasTimeRemaining || shouldYieldToHost())) {
        // This currentTask hasn't expired, and we've reached the deadline.
        break;
      }

      var callback = currentTask.callback;

      if (callback !== null) {
        currentTask.callback = null;
        currentPriorityLevel = currentTask.priorityLevel;
        var didUserCallbackTimeout = currentTask.expirationTime <= currentTime;
        markTaskRun(currentTask, currentTime);
        var continuationCallback = callback(didUserCallbackTimeout);
        currentTime = getCurrentTime();

        if (typeof continuationCallback === 'function') {
          currentTask.callback = continuationCallback;
          markTaskYield(currentTask, currentTime);
        } else {
          {
            markTaskCompleted(currentTask, currentTime);
            currentTask.isQueued = false;
          }

          if (currentTask === peek(taskQueue)) {
            pop(taskQueue);
          }
        }

        advanceTimers(currentTime);
      } else {
        pop(taskQueue);
      }

      currentTask = peek(taskQueue);
    } // Return whether there's additional work


    if (currentTask !== null) {
      return true;
    } else {
      var firstTimer = peek(timerQueue);

      if (firstTimer !== null) {
        requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime);
      }

      return false;
    }
  }

  function unstable_runWithPriority(priorityLevel, eventHandler) {