Function getLeadingBit

packages/react-server/src/ReactFizzTreeContext.js:150–152

(id: number)

}

function getLeadingBit(id: number) {
  return 1 << (getBitLength(id) - 1);
}

// TODO: Math.clz32 is supported in Node 12+. Maybe we can drop the fallback.
const clz32 = Math.clz32 ? Math.clz32 : clz32Fallback;