锁判断

aijinhui

2023-11-15 5fe02f6f3c1a9df1b6d86e87329137cd57de0d00

1
2
3
4
5
6
export default function _classExtractFieldDescriptor(receiver, privateMap, action) {
  if (!privateMap.has(receiver)) {
    throw new TypeError("attempted to " + action + " private field on non-instance");
  }
  return privateMap.get(receiver);
}