Function mergeLanes

packages/react-reconciler/src/ReactFiberLane.js:787–789

(a: Lanes | Lane, b: Lanes | Lane)

}

export function mergeLanes(a: Lanes | Lane, b: Lanes | Lane): Lanes {
  return a | b;
}

export function removeLanes(set: Lanes, subset: Lanes | Lane): Lanes {
  return set & ~subset;