Method HandleErrorCallback

nan.h:2101–2108

  }

  virtual void HandleErrorCallback() {
    HandleScope scope;

    v8::Local<v8::Value> argv[] = {
      v8::Exception::Error(New<v8::String>(ErrorMessage()).ToLocalChecked())
    };
    callback->Call(1, argv, async_resource);
  }

  void SetErrorMessage(const char *msg) {
    delete[] errmsg_;