Function IngestSome

r/src/array_to_vector.cpp:130–151

template <typename SetNonNull, typename SetNull>
Status IngestSome(const std::shared_ptr<arrow::Array>& array, R_xlen_t n,
                  SetNonNull&& set_non_null, SetNull&& set_null) {
  if (array->null_count()) {
    internal::BitmapReader bitmap_reader(array->null_bitmap()->data(), array->offset(),
                                         n);

    for (R_xlen_t i = 0; i < n; i++, bitmap_reader.Next()) {
      if (bitmap_reader.IsSet()) {
        RETURN_NOT_OK(set_non_null(i));
      } else {
        RETURN_NOT_OK(set_null(i));
      }
    }

  } else {
    for (R_xlen_t i = 0; i < n; i++) {
      RETURN_NOT_OK(set_non_null(i));
    }
  }

  return Status::OK();
}

template <typename SetNonNull>
Status IngestSome(const std::shared_ptr<arrow::Array>& array, R_xlen_t n,