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feat(ranges): add Ranges::AppendTo() function

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Redstone1024 2024-12-24 13:15:34 +08:00
parent bf22397123
commit 262ce1bb67
1 changed files with 32 additions and 25 deletions
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57
Redcraft.Utility/Source/Public/Ranges/Conversion.h
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@ -32,25 +32,50 @@ concept CReservableContainer = CSizedRange<C>
&& requires (C& Container, size_t N) && requires (C& Container, size_t N)
{ {
Container.Reserve(N); Container.Reserve(N);
{ Container.Num() } -> CSameAs<size_t>;
{ Container.Max() } -> CSameAs<size_t>; { Container.Max() } -> CSameAs<size_t>;
}; };
/** A concept specifies a container that can append elements. */ /** A concept specifies a container that can append elements. */
template <typename C, typename Ref> template <typename C, typename T>
concept CAppendableContainer = concept CAppendableContainer =
requires (C& Container, Ref&& Reference) requires (C& Container, T&& Object)
{ {
requires requires
( (
requires { Container.EmplaceBack (Forward<Ref>(Reference)); } || requires { Container.EmplaceBack (Forward<T>(Object)); } ||
requires { Container.PushBack (Forward<Ref>(Reference)); } || requires { Container.PushBack (Forward<T>(Object)); } ||
requires { Container.Emplace(Container.End(), Forward<Ref>(Reference)); } || requires { Container.Emplace(Container.End(), Forward<T>(Object)); } ||
requires { Container.Insert (Container.End(), Forward<Ref>(Reference)); } requires { Container.Insert (Container.End(), Forward<T>(Object)); }
); );
}; };
NAMESPACE_BEGIN(Ranges) NAMESPACE_BEGIN(Ranges)
template <typename T, CAppendableContainer<T> C>
FORCEINLINE constexpr void AppendTo(C& Container, T&& Object)
{
if constexpr (requires { Container.EmplaceBack(Forward<T>(Object)); })
{
Container.EmplaceBack(Forward<T>(Object));
}
else if constexpr (requires { Container.PushBack(Forward<T>(Object)); })
{
Container.PushBack(Forward<T>(Object));
}
else if constexpr (requires { Container.Emplace(Container.End(), Forward<T>(Object)); })
{
Container.Emplace(Container.End(), Forward<T>(Object));
}
else /* if constexpr (requires { Container.Insert(Container.End(), Forward<T>(Object)); }) */
{
Container.Insert(Container.End(), Forward<T>(Object));
}
}
/** Constructs a non-view object from the elements of the range. */ /** Constructs a non-view object from the elements of the range. */
template <typename C, CInputRange R, typename... Ts> requires (!CView<C>) template <typename C, CInputRange R, typename... Ts> requires (!CView<C>)
NODISCARD FORCEINLINE constexpr auto To(R&& Range, Ts&&... Args) NODISCARD FORCEINLINE constexpr auto To(R&& Range, Ts&&... Args)
@ -78,25 +103,7 @@ NODISCARD FORCEINLINE constexpr auto To(R&& Range, Ts&&... Args)
for (TRangeReference<R> Element : Range) for (TRangeReference<R> Element : Range)
{ {
if constexpr (requires { Result.EmplaceBack(DeclVal<TRangeReference<R>>()); }) Ranges::AppendTo(Result, Forward<TRangeReference<R>>(Element));
{
Result.EmplaceBack(Forward<TRangeReference<R>>(Element));
}
else if constexpr (requires { Result.PushBack(DeclVal<TRangeReference<R>>()); })
{
Result.PushBack(Forward<TRangeReference<R>>(Element));
}
else if constexpr (requires { Result.Emplace(Result.End(), DeclVal<TRangeReference<R>>()); })
{
Result.Emplace(Result.End(), Forward<TRangeReference<R>>(Element));
}
else /* if constexpr (requires { Result.Insert(Result.End(), DeclVal<TRangeReference<R>>()); }) */
{
Result.Insert(Result.End(), Forward<TRangeReference<R>>(Element));
}
} }
return Result; return Result;