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Specialize instantiated_t for std::tuple to improve performance #32

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Merged
mingxwa merged 3 commits into from
Apr 26, 2026
+9 −2
Merged

Specialize instantiated_t for std::tuple to improve performance #32

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102a596
perf: Add a specialization specifically for `std::tuple` to improve t…
Kim-J-Smith Apr 26, 2026
9687240
style: Fix formatting violations.
Kim-J-Smith Apr 26, 2026
2745e19
style: Remove the empty lines.
Kim-J-Smith Apr 26, 2026
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11 changes: 9 additions & 2 deletions include/proxy/v4/proxy.h
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Original file line number Diff line number Diff line change
Expand Up @@ -152,8 +152,15 @@ template <template <class...> class T, class TL, std::size_t... Is,
struct instantiated_traits<T, TL, std::index_sequence<Is...>, Args...>
: std::type_identity<T<Args..., std::tuple_element_t<Is, TL>...>> {};
template <template <class...> class T, class TL, class... Args>
using instantiated_t = typename instantiated_traits<
T, TL, std::make_index_sequence<std::tuple_size_v<TL>>, Args...>::type;
struct instantiated_traits_helper
: instantiated_traits<
T, TL, std::make_index_sequence<std::tuple_size_v<TL>>, Args...> {};
template <template <class...> class T, class... Ts, class... Args>
struct instantiated_traits_helper<T, std::tuple<Ts...>, Args...>
: std::type_identity<T<Args..., Ts...>> {};
template <template <class...> class T, class TL, class... Args>
using instantiated_t =
typename instantiated_traits_helper<T, TL, Args...>::type;

enum class qualifier_type { lv, const_lv, rv, const_rv };
template <class T, qualifier_type Q>
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