89 struct ValueUnion {  struct
90   union DataT {
96   using DataPtr = std::unique_ptr<DataT, decltype(&std::free)>;
99   size_t Size;
100   DataPtr Buff;
103   ValueUnion() : Size(0), Buff(nullptr, &std::free) {}  in ValueUnion()  function
105   explicit ValueUnion(size_t BuffSize)  in ValueUnion()  argument
111   explicit operator bool() const { return bool(Buff); }  in operator bool()
113   char* data() const { return Buff->bytes; }  in data()
115   std::string GetAsString() const { return std::string(data()); }  in GetAsString()
117   int64_t GetAsInteger() const {  in GetAsInteger()
125   uint64_t GetAsUnsigned() const {  in GetAsUnsigned()
134   std::array<T, N> GetAsArray() {  in GetAsArray()