Flags.hpp

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// Copyright (c) 2024 Sapphire's Suite. All Rights Reserved.
 
#pragma once
 
#ifndef SAPPHIRE_SUPPORT_FLAGS_GUARD
#define SAPPHIRE_SUPPORT_FLAGS_GUARD
 
#include <cstdint>
 
namespace SA
{
 
    namespace Intl
    {
        template <uint32_t size>
        struct IntSizeT;
 
        template <>
        struct IntSizeT<sizeof(int8_t)>
        {
            using intT = int8_t;
            using uintT = uint8_t;
        };
 
        template <>
        struct IntSizeT<sizeof(int16_t)>
        {
            using intT = int16_t;
            using uintT = uint16_t;
        };
 
        template <>
        struct IntSizeT<sizeof(int32_t)>
        {
            using intT = int32_t;
            using uintT = uint32_t;
        };
 
        template <>
        struct IntSizeT<sizeof(int64_t)>
        {
            using intT = int64_t;
            using uintT = uint64_t;
        };
 
        #define __SA_EINT(EnumType) SA::Intl::IntSizeT<sizeof(EnumType)>::intT
        #define __SA_EUINT(EnumType) SA::Intl::IntSizeT<sizeof(EnumType)>::uintT
    }
 
    #define __SA_DEFINE_ENUM_CLASS_FLAGS_OP(EnumType, op)\
        inline constexpr __SA_EUINT(EnumType) operator op(EnumType _e1, EnumType _e2) {\
            return static_cast<__SA_EUINT(EnumType)>(_e1) op static_cast<__SA_EUINT(EnumType)>(_e2);\
        }\
        inline constexpr __SA_EUINT(EnumType) operator op(__SA_EUINT(EnumType) _flags, EnumType _e) {\
            return _flags op static_cast<__SA_EUINT(EnumType)>(_e);\
        }\
        inline constexpr __SA_EUINT(EnumType) operator op(EnumType _e, __SA_EUINT(EnumType) _flags) {\
            return static_cast<__SA_EUINT(EnumType)>(_e) op _flags;\
        }\
        inline __SA_EUINT(EnumType)& operator op##=(__SA_EUINT(EnumType)& _flags, EnumType _e) {\
            return _flags op##= static_cast<__SA_EUINT(EnumType)>(_e);\
        }
    
 
 
    #define SA_DEFINE_ENUM_CLASS_FLAGS(EnumType)\
        __SA_DEFINE_ENUM_CLASS_FLAGS_OP(EnumType, &)\
        __SA_DEFINE_ENUM_CLASS_FLAGS_OP(EnumType, |)\
        __SA_DEFINE_ENUM_CLASS_FLAGS_OP(EnumType, ^)\
        inline constexpr __SA_EUINT(EnumType) operator ~(EnumType _e){\
            return ~static_cast<__SA_EUINT(EnumType)>(_e);\
        }\
        inline constexpr __SA_EUINT(EnumType) operator +(EnumType _e){\
            return static_cast<__SA_EUINT(EnumType)>(_e);\
        }
}
 
 
#endif // SAPPHIRE_SUPPORT_FLAGS_GUARD