105 struct ValueUnion {  struct
106   union DataT {
112   using DataPtr = std::unique_ptr<DataT, decltype(&std::free)>;
115   std::size_t size;
116   DataPtr buff;
119   ValueUnion() : size(0), buff(nullptr, &std::free) {}  in ValueUnion()  argument
121   explicit ValueUnion(std::size_t buff_size)  in ValueUnion()  function
127   explicit operator bool() const { return bool(buff); }  in operator bool()
129   char* data() const { return buff->bytes; }  in data()
131   std::string GetAsString() const { return std::string(data()); }  in GetAsString()
133   int64_t GetAsInteger() const {  in GetAsInteger()
142   std::array<T, N> GetAsArray() {  in GetAsArray()