Function LoadVariant

library/cpp/chromium_trace/saveload.cpp:100–106

template <class T, size_t... Is>
void LoadVariant(IInputStream* in, TMemoryPool& pool, T& variant, std::index_sequence<Is...>) {
    i8 tag = 0;
    ::Load(in, tag);

    Y_ENSURE_EX(tag >= 0 && size_t(tag) < std::variant_size_v<T>, TSerializeException() << "Invalid variant tag: " << tag);
    (LoadAlternativeIf<Is>(in, pool, variant, tag), ...);
}

template <class T>
void LoadVariant(IInputStream* in, TMemoryPool& pool, T& variant) {