Method Write

cpp/src/arrow/ipc/feather.cc:601–621

  }

  Status Write() {
    if (values.type_id() == Type::DICTIONARY) {
      return WriteArrayV1(*(checked_cast<const DictionaryArray&>(values).indices()), dst,
                          meta);
    }

    ARROW_ASSIGN_OR_RAISE(meta->type, ToFlatbufferType(*values.type()));
    ARROW_ASSIGN_OR_RAISE(meta->offset, dst->Tell());
    meta->length = values.length();
    meta->null_count = values.null_count();
    meta->total_bytes = 0;

    // Write the null bitmask
    if (values.null_count() > 0) {
      RETURN_NOT_OK(WriteBuffer(values.null_bitmap_data(),
                                bit_util::BytesForBits(values.length()),
                                values.offset()));
    }
    // Write data buffer(s)
    return VisitTypeInline(*values.type(), this);
  }
};

Status WriteArrayV1(const Array& values, io::OutputStream* dst, ArrayMetadata* meta) {