UUID.hpp

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/* This file is part of Berserk Engine project                                    */
/* https://github.com/EgorOrachyov/Berserk                                        */
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/* Copyright (c) 2018 - 2021 Egor Orachyov                                        */
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#ifndef BERSERK_UUID_HPP
#define BERSERK_UUID_HPP
 
#include <core/Config.hpp>
#include <core/Typedefs.hpp>
#include <core/string/String.hpp>
 
#include <ostream>
 
BRK_NS_BEGIN
 
class UUID final {
public:
    BRK_API UUID() = default;
    BRK_API explicit UUID(uint32 a, uint32 b, uint32 c, uint32 d);
    BRK_API explicit UUID(const String &uuid);
 
    BRK_API const uint32 *Words() const { return mWords; }
    BRK_API String ToString() const;
    BRK_API uint32 Hash() const;
 
    static BRK_API UUID Empty();
    static BRK_API UUID Generate();
 
private:
    uint32 mWords[4] = {0, 0, 0, 0};
};
 
BRK_NS_END
 
namespace std {
 
    template<>
    struct hash<BRK_NS::UUID> {
    public:
        size_t operator()(const BRK_NS::UUID &uuid) const {
            return uuid.Hash();
        }
    };
 
}// namespace std
 
inline std::ostream &operator<<(std::ostream &stream, const BRK_NS::UUID &name) {
    stream << name.ToString();
    return stream;
}
 
#endif//BERSERK_UUID_HPP