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AK: Add a CallableAs<R, Args...> concept
This is just the concept version of the IsCallableWithArguments type trait previously defined in Function.h.
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sideshowbarker
2024-07-17 02:28:18 +09:00
Author: https://github.com/alimpfard Commit: https://github.com/SerenityOS/serenity/commit/5a0ad6812c Pull-request: https://github.com/SerenityOS/serenity/pull/19871 Reviewed-by: https://github.com/LucasChollet Reviewed-by: https://github.com/Zaggy1024 ✅
@ -129,6 +129,33 @@ concept FallibleFunction = requires(Func&& func, Args&&... args) {
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func(forward<Args>(args)...).release_value();
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func(forward<Args>(args)...).release_value();
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};
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};
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}
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namespace AK::Detail {
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template<typename T, typename Out, typename... Args>
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inline constexpr bool IsCallableWithArguments = requires(T t) {
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{
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t(declval<Args>()...)
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} -> Concepts::ConvertibleTo<Out>;
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} || requires(T t) {
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{
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t(declval<Args>()...)
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} -> Concepts::SameAs<Out>;
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};
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}
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namespace AK {
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using Detail::IsCallableWithArguments;
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}
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namespace AK::Concepts {
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template<typename Func, typename R, typename... Args>
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concept CallableAs = Detail::IsCallableWithArguments<Func, R, Args...>;
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}
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}
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#if !USING_AK_GLOBALLY
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#if !USING_AK_GLOBALLY
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@ -136,6 +163,7 @@ namespace AK {
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#endif
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#endif
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using AK::Concepts::Arithmetic;
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using AK::Concepts::Arithmetic;
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using AK::Concepts::ArrayLike;
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using AK::Concepts::ArrayLike;
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using AK::Concepts::CallableAs;
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using AK::Concepts::ConvertibleTo;
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using AK::Concepts::ConvertibleTo;
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using AK::Concepts::DerivedFrom;
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using AK::Concepts::DerivedFrom;
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using AK::Concepts::Enum;
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using AK::Concepts::Enum;
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@ -36,23 +36,6 @@
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namespace AK {
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namespace AK {
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namespace Detail {
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template<typename T, typename Out, typename... Args>
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inline constexpr bool IsCallableWithArguments = requires(T t) {
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{
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t(declval<Args>()...)
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} -> ConvertibleTo<Out>;
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} || requires(T t) {
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{
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t(declval<Args>()...)
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} -> SameAs<Out>;
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};
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}
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using Detail::IsCallableWithArguments;
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template<typename>
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template<typename>
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class Function;
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class Function;
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