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refactor(templates): optimize the implementation of TOptional and TVariant

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This commit is contained in:
_Redstone_c_
2022-05-03 18:22:41 +08:00
parent a737eea487
commit 522c71f2b6
3 changed files with 296 additions and 312 deletions
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9
Redcraft.Utility/Source/Public/Templates/Optional.h
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@ -5,6 +5,7 @@
#include "Templates/TypeHash.h"
#include "Concepts/Comparable.h"
#include "TypeTraits/TypeTraits.h"
#include "Miscellaneous/Compare.h"
#include "Miscellaneous/AssertionMacros.h"
NAMESPACE_REDCRAFT_BEGIN
@ -262,6 +263,14 @@ constexpr bool operator==(const TOptional<T>& LHS, const TOptional<U>& RHS)
return *LHS == *RHS;
}
template <typename T, typename U> requires CSynthThreeWayComparableWith<T, U>
constexpr partial_ordering operator<=>(const TOptional<T>& LHS, const TOptional<U>& RHS)
{
if (LHS.IsValid() != RHS.IsValid()) return partial_ordering::unordered;
if (LHS.IsValid() == false) return partial_ordering::equivalent;
return SynthThreeWayCompare(*LHS, *RHS);
}
template <typename T, typename U> requires CWeaklyEqualityComparableWith<T, U>
constexpr bool operator==(const TOptional<T>& LHS, const U& RHS)
{