GFxWStringBuffer.h

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#pragma once
 
namespace RE
{
    class GFxWStringBuffer
    {
    public:
        using value_type = wchar_t;
        using size_type = UPInt;
        using reference = value_type&;
        using const_reference = const value_type&;
 
        struct ReserveHeader
        {
            ReserveHeader();
            ReserveHeader(const ReserveHeader& a_rhs);
            ReserveHeader(ReserveHeader&& a_rhs);
            ReserveHeader(wchar_t* a_buffer, UPInt a_size);
            ~ReserveHeader() = default;
 
            ReserveHeader& operator=(const ReserveHeader& a_rhs);
            ReserveHeader& operator=(ReserveHeader&& a_rhs);
 
            // members
            wchar_t* buffer;  // 00
            UPInt    size;    // 08
        };
        static_assert(sizeof(ReserveHeader) == 0x10);
 
        template <std::uint32_t SIZE>
        struct Reserve : public ReserveHeader
        {
            Reserve() :
                ReserveHeader(buffer, SIZE)
            {}
 
            // members
            wchar_t buffer[SIZE];  // 10
        };
 
        // (constructor)
        GFxWStringBuffer();
        GFxWStringBuffer(const GFxWStringBuffer& a_rhs);
        GFxWStringBuffer(GFxWStringBuffer&& a_rhs);
        GFxWStringBuffer(const ReserveHeader& a_reserve);
        GFxWStringBuffer(ReserveHeader&& a_reserve);
 
        // (destructor)
        ~GFxWStringBuffer();
 
        // operator=
        GFxWStringBuffer& operator=(const GFxWStringBuffer& a_rhs);
        GFxWStringBuffer& operator=(GFxWStringBuffer&& a_rhs);
        GFxWStringBuffer& operator=(const wchar_t* a_rhs);
        GFxWStringBuffer& operator=(const std::wstring_view& a_rhs);
 
        // element access
        reference       operator[](size_type a_pos);
        const_reference operator[](size_type a_pos) const;
 
        wchar_t&                     front();
        [[nodiscard]] const wchar_t& front() const;
 
        wchar_t&                     back();
        [[nodiscard]] const wchar_t& back() const;
 
        [[nodiscard]] const wchar_t* data() const noexcept;
        wchar_t*                     data() noexcept;
 
        [[nodiscard]] const wchar_t* c_str() const noexcept;
 
        operator std::wstring_view() const noexcept;
 
        // Capacity
        [[nodiscard]] bool empty() const noexcept;
 
        [[nodiscard]] size_type size() const noexcept;
 
        [[nodiscard]] size_type length() const noexcept;
 
        // Operations
        void clear() noexcept;
 
        void resize(size_type a_count);
 
    protected:
        wchar_t* alloc(size_type a_count);
        void     release();
 
        // members
        wchar_t*      _text;      // 00
        UPInt         _length;    // 08
        ReserveHeader _reserved;  // 10
    };
    static_assert(sizeof(GFxWStringBuffer) == 0x20);
}