function getHighestPriorityLanes()

in packages/react-reconciler/src/ReactFiberLane.new.js [134:188]

• 54 lines of code
• 33 McCabe index (conditional complexity)

function getHighestPriorityLanes(lanes: Lanes | Lane): Lanes {
  switch (getHighestPriorityLane(lanes)) {
    case SyncLane:
      return SyncLane;
    case InputContinuousHydrationLane:
      return InputContinuousHydrationLane;
    case InputContinuousLane:
      return InputContinuousLane;
    case DefaultHydrationLane:
      return DefaultHydrationLane;
    case DefaultLane:
      return DefaultLane;
    case TransitionHydrationLane:
      return TransitionHydrationLane;
    case TransitionLane1:
    case TransitionLane2:
    case TransitionLane3:
    case TransitionLane4:
    case TransitionLane5:
    case TransitionLane6:
    case TransitionLane7:
    case TransitionLane8:
    case TransitionLane9:
    case TransitionLane10:
    case TransitionLane11:
    case TransitionLane12:
    case TransitionLane13:
    case TransitionLane14:
    case TransitionLane15:
    case TransitionLane16:
      return lanes & TransitionLanes;
    case RetryLane1:
    case RetryLane2:
    case RetryLane3:
    case RetryLane4:
    case RetryLane5:
      return lanes & RetryLanes;
    case SelectiveHydrationLane:
      return SelectiveHydrationLane;
    case IdleHydrationLane:
      return IdleHydrationLane;
    case IdleLane:
      return IdleLane;
    case OffscreenLane:
      return OffscreenLane;
    default:
      if (__DEV__) {
        console.error(
          'Should have found matching lanes. This is a bug in React.',
        );
      }
      // This shouldn't be reachable, but as a fallback, return the entire bitmask.
      return lanes;
  }
}