StateVersion.h

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#pragma once
#include "catapult/io/PodIoUtils.h"
#include "catapult/io/Stream.h"
#include "catapult/exceptions.h"
 
namespace catapult { namespace cache {
 
    template<typename TSerializerTraits>
    struct StateVersion {
        static void Write(io::OutputStream& output) {
            io::Write16(output, TSerializerTraits::State_Version);
        }
 
        static void ReadAndCheck(io::InputStream& input) {
            auto version = io::Read16(input);
            if (TSerializerTraits::State_Version != version)
                CATAPULT_THROW_RUNTIME_ERROR_1("serialized state has invalid version", version);
        }
    };
}}