Function read

bolt/serializers/PrestoSerializer.cpp:390–418

template <typename T>
void read(
    ByteInputStream* source,
    const TypePtr& type,
    bolt::memory::MemoryPool* pool,
    VectorPtr& result,
    vector_size_t resultOffset,
    bool useLosslessTimestamp) {
  const int32_t size = source->read<int32_t>();
  result->resize(resultOffset + size);

  auto flatResult = result->asFlatVector<T>();
  auto nullCount = readNulls(source, size, *flatResult, resultOffset);

  BufferPtr values = flatResult->mutableValues(resultOffset + size);
  if constexpr (std::is_same_v<T, Timestamp>) {
    if (useLosslessTimestamp) {
      readLosslessTimestampValues(
          source, size, resultOffset, flatResult->nulls(), nullCount, values);
      return;
    }
  }
  if (type->isLongDecimal()) {
    readDecimalValues(
        source, size, resultOffset, flatResult->nulls(), nullCount, values);
    return;
  }
  readValues<T>(
      source, size, resultOffset, flatResult->nulls(), nullCount, values);
}

template <>
void read<StringView>(