TheRock/rocm-libraries/projects/hipblaslt/tensilelite/include/Tensile/Serialization/HasTraits.hpp

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 *
 * MIT License
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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#pragma once

#include <Tensile/Serialization/Base.hpp>

#include <cstddef>

#include <tensilelitehost/export.h>

namespace TensileLite
{
    namespace Serialization
    {
        template <typename T, T>
        struct SameType;

        template <typename T, typename IO, typename Context>
        class has_MappingTraits
        {
            using mapping = void (*)(IO&, T&, Context&);

            template <typename U>
            static uint8_t test(SameType<mapping, &U::mapping>*);

            template <typename U>
            static uint32_t test(...);

        public:
            static const bool value = sizeof(test<MappingTraits<T, IO, Context>>(nullptr)) == 1;
        };

        template <typename T, typename IO, typename Context = EmptyContext>
        class has_EmptyMappingTraits
        {
            using mapping = void (*)(IO&, T&);

            template <typename U>
            static uint8_t test(SameType<mapping, &U::mapping>*);

            template <typename U>
            static uint32_t test(...);

        public:
            static const bool value = sizeof(test<MappingTraits<T, IO, Context>>(nullptr)) == 1;
        };

        template <typename T, typename IO>
        class has_EnumTraits
        {
            using enumeration = void (*)(IO&, T&);

            template <typename U>
            static uint8_t test(SameType<enumeration, &U::enumeration>*);

            template <typename U>
            static uint32_t test(...);

        public:
            static const bool value = sizeof(test<EnumTraits<T, IO>>(nullptr)) == 1;
        };

        template <typename T, typename IO>
        class has_SequenceTraits
        {
            using size = size_t (*)(IO&, T&);

            template <typename U>
            static uint8_t test(SameType<size, &U::size>*);

            template <typename u>
            static uint32_t test(...);

        public:
            static const bool value = sizeof(test<SequenceTraits<T, IO>>(nullptr)) == 1;
        };

        template <typename T, typename IO>
        class has_CustomMappingTraits
        {
            using inputOne = void (*)(IO&, std::string const&, T&);
            using output   = void (*)(IO&, T&);

            template <typename U>
            static uint8_t test(SameType<inputOne, &U::inputOne>*, SameType<output, &U::output>*);

            template <typename u>
            static uint32_t test(...);

        public:
            static const bool value
                = sizeof(test<CustomMappingTraits<T, IO>>(nullptr, nullptr)) == 1;
        };

        template <typename T, typename IO>
        struct has_SerializationTraits
        {
            static const bool value0 = has_EmptyMappingTraits<T, IO>::value;
            static const bool value1 = has_EnumTraits<T, IO>::value;
            static const bool value2 = has_SequenceTraits<T, IO>::value;
            static const bool value3 = has_CustomMappingTraits<T, IO>::value;

            static const int count = value0 + value1 + value2 + value3;

            static_assert(count == 0 || count == 1, "Ambiguous serialization!");

            static const bool value = value0 || value1 || value2 || value3;
        };

    } // namespace Serialization
} // namespace TensileLite