Method CreateChild

cpp/src/arrow/array/util.cc:583–588

  }

  Result<std::shared_ptr<ArrayData>> CreateChild(const DataType& type, int i,
                                                 int64_t length) {
    NullArrayFactory child_factory(pool_, type.field(i)->type(), length);
    child_factory.buffer_ = buffer_;
    return child_factory.Create();
  }

  MemoryPool* pool_;
  const std::shared_ptr<DataType>& type_;