Method FieldBuilders

cpp/src/arrow/builder.cc:303–313

  }

  Result<std::vector<std::shared_ptr<ArrayBuilder>>> FieldBuilders(const DataType& type,
                                                                   MemoryPool* pool) {
    std::vector<std::shared_ptr<ArrayBuilder>> field_builders;
    for (const auto& field : type.fields()) {
      std::unique_ptr<ArrayBuilder> builder;
      MakeBuilderImpl impl{pool, field->type(), exact_index_type, /*out=*/nullptr};
      RETURN_NOT_OK(VisitTypeInline(*field->type(), &impl));
      field_builders.emplace_back(std::move(impl.out));
    }
    return field_builders;
  }

  MemoryPool* pool;
  const std::shared_ptr<DataType>& type;