Function isSubsetOfLanes

packages/react-reconciler/src/ReactFiberLane.js:783–785

(set: Lanes, subset: Lanes | Lane)

}

export function isSubsetOfLanes(set: Lanes, subset: Lanes | Lane): boolean {
  return (set & subset) === subset;
}

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