Method type

cpp/src/arrow/array/builder_nested.cc:307–314

}

std::shared_ptr<DataType> StructBuilder::type() const {
  DCHECK_EQ(type_->fields().size(), children_.size());
  std::vector<std::shared_ptr<Field>> fields(children_.size());
  for (int i = 0; i < static_cast<int>(fields.size()); ++i) {
    fields[i] = type_->field(i)->WithType(children_[i]->type());
  }
  return struct_(std::move(fields));
}

}  // namespace arrow