Function BuildListOfStructPairs

cpp/src/arrow/array/array_list_test.cc:1456–1481

template <typename TYPE>
Status BuildListOfStructPairs(TYPE& builder, std::shared_ptr<Array>* out) {
  auto struct_builder = internal::checked_cast<StructBuilder*>(builder.value_builder());
  auto field0_builder =
      internal::checked_cast<Int16Builder*>(struct_builder->field_builder(0));
  auto field1_builder =
      internal::checked_cast<Int16Builder*>(struct_builder->field_builder(1));

  RETURN_NOT_OK(builder.Append());
  RETURN_NOT_OK(field0_builder->AppendValues({0, 1}));
  RETURN_NOT_OK(field1_builder->AppendValues({1, -1}, {1, 0}));
  RETURN_NOT_OK(struct_builder->AppendValues(2, NULLPTR));
  RETURN_NOT_OK(builder.AppendNull());
  RETURN_NOT_OK(builder.Append());
  RETURN_NOT_OK(field0_builder->Append(2));
  RETURN_NOT_OK(field1_builder->Append(3));
  RETURN_NOT_OK(struct_builder->Append());
  RETURN_NOT_OK(builder.Append());
  RETURN_NOT_OK(builder.Append());
  RETURN_NOT_OK(field0_builder->AppendValues({3, 4}));
  RETURN_NOT_OK(field1_builder->AppendValues({4, 5}));
  RETURN_NOT_OK(struct_builder->AppendValues(2, NULLPTR));
  RETURN_NOT_OK(builder.Finish(out));
  RETURN_NOT_OK((*out)->Validate());

  return Status::OK();
}

}  // namespace