template <typename InterruptFlag>
struct InterruptFlagIndex {};

template <>
struct InterruptFlagIndex<SpellAuraInterruptFlags>
{
    static std::size_t constexpr value = 0;
};

template <>
struct InterruptFlagIndex<SpellAuraInterruptFlags2>
{
    static std::size_t constexpr value = 1;
};

template <>
struct InterruptFlagIndex<SpellChannelInterruptFlags>
{
    static std::size_t constexpr value = 0;
};

template <>
struct InterruptFlagIndex<SpellChannelInterruptFlags2>
{
    static std::size_t constexpr value = 1;
};