Method serialize

bolt/vector/VectorStream.cpp:47–62

      : pool_(pool), serde_(serde), options_(options) {}

  void serialize(
      const RowVectorPtr& vector,
      const folly::Range<const IndexRange*>& ranges,
      Scratch& scratch,
      OutputStream* stream) override {
    size_t numRows = 0;
    for (const auto& range : ranges) {
      numRows += range.size;
    }

    StreamArena arena(pool_);
    auto serializer = serde_->createSerializer(
        asRowType(vector->type()), numRows, &arena, options_);
    serializer->append(vector, ranges, scratch);
    serializer->flush(stream);
  }

 private:
  memory::MemoryPool* const pool_;