Method DelayedExtend

r/src/r_to_arrow.cpp:1092–1099

  }

  void DelayedExtend(SEXP values, int64_t size, RTasks& tasks) override {
    // NOTE: because Extend::[]append_value() calls Extend() on the
    // value converter, which might require a setup step, it feels
    // complicated to run this task concurrently.
    //
    // TODO: perhaps allow running concurrently in some cases, e.g. list(int32(!altrep))
    tasks.Append(false, [this, values, size]() { return this->Extend(values, size); });
  }
};

class RStructConverter;