4.4侧边栏

linwenling

2023-04-04 e3bc460e60710e04f05888c7dc5dd819dcb84be1

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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);
}