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refactor(templates): add constraints to reduce duplicate code on TAny etc

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This commit is contained in:
_Redstone_c_
2022-04-03 22:55:17 +08:00
parent 5f4b0d8c22
commit 943c7c5991
4 changed files with 46 additions and 201 deletions
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60
Redcraft.Utility/Source/Public/Templates/Optional.h
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@ -106,9 +106,11 @@ public:
return *this;
}
template <typename T = OptionalType> requires TIsConstructible<OptionalType, const T&>::Value
template <typename T = OptionalType> requires TIsConstructible<OptionalType, const T&>::Value && TIsAssignable<OptionalType, const T&>::Value
constexpr TOptional& operator=(const TOptional<T>& InValue)
{
if (&InValue == this) return *this;
if (!InValue.IsValid())
{
Reset();
@ -125,9 +127,11 @@ public:
return *this;
}
template <typename T = OptionalType> requires TIsConstructible<OptionalType, T&&>::Value
template <typename T = OptionalType> requires TIsConstructible<OptionalType, T&&>::Value && TIsAssignable<OptionalType, T&&>::Value
constexpr TOptional& operator=(TOptional<T>&& InValue)
{
if (&InValue == this) return *this;
if (!InValue.IsValid())
{
Reset();
@ -144,7 +148,7 @@ public:
return *this;
}
template <typename T = OptionalType> requires TIsConstructible<OptionalType, T&&>::Value
template <typename T = OptionalType> requires TIsConstructible<OptionalType, T&&>::Value && TIsAssignable<OptionalType, T&&>::Value
constexpr TOptional& operator=(T&& InValue)
{
if (IsValid()) GetValue() = Forward<T>(InValue);
@ -157,12 +161,12 @@ public:
return *this;
}
template <typename... ArgsType>
constexpr OptionalType& Emplace(ArgsType&&... Args)
template <typename... ArgTypes> requires TIsConstructible<OptionalType, ArgTypes...>::Value
constexpr OptionalType& Emplace(ArgTypes&&... Args)
{
Reset();
OptionalType* Result = new(&Value) OptionalType(Forward<ArgsType>(Args)...);
OptionalType* Result = new(&Value) OptionalType(Forward<ArgTypes>(Args)...);
bIsValid = true;
return *Result;
@ -225,62 +229,18 @@ constexpr bool operator==(const TOptional<T>& LHS, const TOptional<U>& RHS)
return *LHS == *RHS;
}
template <typename T, typename U> requires CWeaklyEqualityComparableWith<T, U>
constexpr bool operator!=(const TOptional<T>& LHS, const TOptional<U>& RHS)
{
if (LHS.IsValid() != RHS.IsValid()) return true;
if (LHS.IsValid() == false) return false;
return *LHS != *RHS;
}
template <typename T, typename U> requires CWeaklyEqualityComparableWith<T, U>
constexpr bool operator==(const TOptional<T>& LHS, const U& RHS)
{
return LHS.IsValid() ? *LHS == RHS : false;
}
template <typename T, typename U> requires CWeaklyEqualityComparableWith<T, U>
constexpr bool operator!=(const TOptional<T>& LHS, const U& RHS)
{
return LHS.IsValid() ? *LHS != RHS : true;
}
template <typename T, typename U> requires CWeaklyEqualityComparableWith<T, U>
constexpr bool operator==(const T& LHS, const TOptional<U>& RHS)
{
return RHS.IsValid() ? LHS == *RHS : false;
}
template <typename T, typename U> requires CWeaklyEqualityComparableWith<T, U>
constexpr bool operator!=(const T& LHS, const TOptional<U>& RHS)
{
return RHS.IsValid() ? LHS != *RHS : true;
}
template <typename T>
constexpr bool operator==(const TOptional<T>& LHS, FInvalid)
{
return !LHS.IsValid();
}
template <typename T>
constexpr bool operator!=(const TOptional<T>& LHS, FInvalid)
{
return LHS.IsValid();
}
template <typename T>
constexpr bool operator==(FInvalid, const TOptional<T>& RHS)
{
return !RHS.IsValid();
}
template <typename T>
constexpr bool operator!=(FInvalid, const TOptional<T>& RHS)
{
return RHS.IsValid();
}
template <typename T> requires (TIsObject<T>::Value && !TIsArray<T>::Value && TIsDestructible<T>::Value)
constexpr TOptional<typename TDecay<T>::Type> MakeOptional(FInvalid)
{