style(*): move some constants and placeholders to CoreMiscDefines.h
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@ -16,12 +16,12 @@ struct TVariantAlternativeIndex;
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template <typename T, typename U, typename... Types>
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struct TVariantAlternativeIndex<T, U, Types...>
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: TConstant<size_t, TIsSame<T, U>::Value ? 0 : (TVariantAlternativeIndex<T, Types...>::Value == static_cast<size_t>(INDEX_NONE)
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? static_cast<size_t>(INDEX_NONE) : TVariantAlternativeIndex<T, Types...>::Value + 1)>
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: TConstant<size_t, TIsSame<T, U>::Value ? 0 : (TVariantAlternativeIndex<T, Types...>::Value == INDEX_NONE
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? INDEX_NONE : TVariantAlternativeIndex<T, Types...>::Value + 1)>
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{ };
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template <typename T>
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struct TVariantAlternativeIndex<T> : TConstant<size_t, static_cast<size_t>(INDEX_NONE)> { };
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struct TVariantAlternativeIndex<T> : TConstant<size_t, INDEX_NONE> { };
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template <size_t I, typename... Types>
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struct TVariantAlternativeType;
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@ -225,20 +225,20 @@ struct TVariant
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template <size_t I> struct TAlternativeType : NAMESPACE_PRIVATE::TVariantAlternativeType<I, Types...> { };
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template <typename T> struct TAlternativeIndex : NAMESPACE_PRIVATE::TVariantAlternativeIndex<T, Types...> { };
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constexpr TVariant() : TypeIndex(static_cast<size_t>(INDEX_NONE)) { };
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constexpr TVariant() : TypeIndex(INDEX_NONE) { };
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constexpr TVariant(FInvalid) : TVariant() { };
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constexpr TVariant(const TVariant& InValue)
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: TypeIndex(InValue.GetIndex())
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{
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if (GetIndex() != static_cast<size_t>(INDEX_NONE)) FHelper::CopyConstructFuncs[InValue.GetIndex()](&Value, &InValue.Value);
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if (GetIndex() != INDEX_NONE) FHelper::CopyConstructFuncs[InValue.GetIndex()](&Value, &InValue.Value);
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}
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constexpr TVariant(TVariant&& InValue)
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: TypeIndex(InValue.GetIndex())
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{
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if (GetIndex() != static_cast<size_t>(INDEX_NONE)) FHelper::MoveConstructFuncs[InValue.GetIndex()](&Value, &InValue.Value);
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if (GetIndex() != INDEX_NONE) FHelper::MoveConstructFuncs[InValue.GetIndex()](&Value, &InValue.Value);
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}
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template<size_t I, typename... ArgTypes> requires (I < FAlternativeSize::Value)
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@ -250,7 +250,7 @@ struct TVariant
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new(&Value) SelectedType(Forward<ArgTypes>(Args)...);
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}
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template<typename T, typename... ArgTypes> requires (TAlternativeIndex<T>::Value != static_cast<size_t>(INDEX_NONE))
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template<typename T, typename... ArgTypes> requires (TAlternativeIndex<T>::Value != INDEX_NONE)
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&& TIsConstructible<typename TAlternativeType<TAlternativeIndex<T>::Value>::Type, ArgTypes...>::Value
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constexpr explicit TVariant(TInPlaceType<T>, ArgTypes&&... Args)
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: TVariant(InPlaceIndex<TAlternativeIndex<T>::Value>, Forward<ArgTypes>(Args)...)
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@ -338,7 +338,7 @@ struct TVariant
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return *Result;
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}
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template <typename T, typename... ArgTypes> requires (TAlternativeIndex<T>::Value != static_cast<size_t>(INDEX_NONE))
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template <typename T, typename... ArgTypes> requires (TAlternativeIndex<T>::Value != INDEX_NONE)
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&& TIsConstructible<typename TAlternativeType<TAlternativeIndex<T>::Value>::Type, ArgTypes...>::Value
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constexpr T& Emplace(ArgTypes&&... Args)
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{
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@ -346,8 +346,8 @@ struct TVariant
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}
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constexpr size_t GetIndex() const { return TypeIndex; }
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constexpr bool IsValid() const { return GetIndex() != static_cast<size_t>(INDEX_NONE); }
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constexpr explicit operator bool() const { return GetIndex() != static_cast<size_t>(INDEX_NONE); }
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constexpr bool IsValid() const { return GetIndex() != INDEX_NONE; }
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constexpr explicit operator bool() const { return GetIndex() != INDEX_NONE; }
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template <size_t I> constexpr bool HoldsAlternative() const { return IsValid() ? GetIndex() == I : false; }
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template <typename T> constexpr bool HoldsAlternative() const { return IsValid() ? GetIndex() == TAlternativeIndex<T>::Value : false; }
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@ -433,11 +433,11 @@ struct TVariant
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constexpr void Reset()
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{
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if (GetIndex() == static_cast<size_t>(INDEX_NONE)) return;
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if (GetIndex() == INDEX_NONE) return;
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FHelper::DestroyFuncs[GetIndex()](&Value);
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TypeIndex = static_cast<size_t>(INDEX_NONE);
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TypeIndex = INDEX_NONE;
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}
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private:
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