Method WeakCallbackType

nan.h:419–419

  enum E {kParameter, kInternalFields};
  E type;
  WeakCallbackType(E other) : type(other) {}  // NOLINT(runtime/explicit)
  inline bool operator==(E other) { return other == this->type; }
  inline bool operator!=(E other) { return !operator==(other); }
};