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feat(templates): add initializer_list overloads to the in place constructor and emplace

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_Redstone_c_
2022-12-31 19:19:30 +08:00
parent 5338cd286a
commit 0709f209c8
5 changed files with 219 additions and 28 deletions
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26
Redcraft.Utility/Source/Public/Templates/Any.h
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@ -106,6 +106,13 @@ public:
{
EmplaceImpl<T>(Forward<Ts>(Args)...);
}
/** Constructs an object with initial content an object of type TDecay<T>, direct-non-list-initialized from IL, Forward<Ts>(Args).... */
template <typename T, typename U, typename... Ts> requires (NAMESPACE_PRIVATE::CFAnyPlaceable<T> && CConstructibleFrom<TDecay<T>, initializer_list<U>, Ts&&...>)
FORCEINLINE explicit FAny(TInPlaceType<T>, initializer_list<U> IL, Ts&&... Args)
{
EmplaceImpl<T>(IL, Forward<Ts>(Args)...);
}
/** Destroys the contained object, if any, as if by a call to Reset(). */
FORCEINLINE ~FAny()
@ -275,7 +282,7 @@ public:
* First destroys the current contained object (if any) by Reset(), then constructs an object of type
* TDecay<T>, direct-non-list-initialized from Forward<Ts>(Args)..., as the contained object.
*
* @param Args - The arguments to be passed to the constructor of the contained object.
* @param Args - The arguments to be passed to the constructor of the contained object.
*
* @return A reference to the new contained object.
*/
@ -287,6 +294,23 @@ public:
return GetValue<TDecay<T>>();
}
/**
* Changes the contained object to one of type TDecay<T> constructed from the arguments.
* First destroys the current contained object (if any) by Reset(), then constructs an object of type
* TDecay<T>, direct-non-list-initialized from IL, Forward<Ts>(Args)..., as the contained object.
*
* @param IL, Args - The arguments to be passed to the constructor of the contained object.
*
* @return A reference to the new contained object.
*/
template <typename T, typename U, typename... Ts> requires (NAMESPACE_PRIVATE::CFAnyPlaceable<T> && CConstructibleFrom<TDecay<T>, initializer_list<U>, Ts&&...>)
FORCEINLINE TDecay<T>& Emplace(initializer_list<U> IL, Ts&&... Args)
{
Destroy();
EmplaceImpl<T>(IL, Forward<Ts>(Args)...);
return GetValue<TDecay<T>>();
}
/** @return The typeid of the contained value if instance is non-empty, otherwise typeid(void). */
NODISCARD FORCEINLINE constexpr const type_info& GetTypeInfo() const { return IsValid() ? GetTypeInfoImpl() : typeid(void); }