Method AppendArraySlice

cpp/src/arrow/array/builder_binary.cc:52–80

    : BinaryViewBuilder(pool) {}

Status BinaryViewBuilder::AppendArraySlice(const ArraySpan& array, int64_t offset,
                                           int64_t length) {
  auto bitmap = array.GetValues<uint8_t>(0, 0);
  auto values = array.GetValues<BinaryViewType::c_type>(1) + offset;

  int64_t out_of_line_total = 0, i = 0;
  VisitNullBitmapInline(
      array.buffers[0].data, array.offset + offset, length, array.null_count,
      [&] {
        if (!values[i].is_inline()) {
          out_of_line_total += static_cast<int64_t>(values[i].size());
        }
        ++i;
      },
      [&] { ++i; });

  RETURN_NOT_OK(Reserve(length));
  RETURN_NOT_OK(ReserveData(out_of_line_total));

  for (int64_t i = 0; i < length; i++) {
    if (bitmap && !bit_util::GetBit(bitmap, array.offset + offset + i)) {
      UnsafeAppendNull();
      continue;
    }

    UnsafeAppend(util::FromBinaryView(values[i], array.GetVariadicBuffers().data()));
  }
  return Status::OK();
}

Status BinaryViewBuilder::FinishInternal(std::shared_ptr<ArrayData>* out) {
  ARROW_ASSIGN_OR_RAISE(auto null_bitmap, null_bitmap_builder_.FinishWithLength(length_));