测试页兼容流媒体1.8.4

liusuyi

2024-07-11 1fe9f918a907193e84e16de1c4c2d51c2f25c5ec

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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);
}