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author | Steven Le Rouzic <steven.lerouzic@gmail.com> | 2025-02-17 00:21:48 +0100 |
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committer | Steven Le Rouzic <steven.lerouzic@gmail.com> | 2025-02-17 22:29:50 +0100 |
commit | a141c401f78467bc15f62882fca5d55a007cacbb (patch) | |
tree | 908ac71a8640f78f45d22c6808c5fa6e373000fa /asl/meta.hpp | |
parent | cb77cbe9ce4cddad6a460aa190ff70f0c13e4703 (diff) |
Reorganize everything
Diffstat (limited to 'asl/meta.hpp')
-rw-r--r-- | asl/meta.hpp | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/asl/meta.hpp b/asl/meta.hpp deleted file mode 100644 index a464e36..0000000 --- a/asl/meta.hpp +++ /dev/null @@ -1,248 +0,0 @@ -#pragma once - -#include "asl/integers.hpp" - -namespace asl { - -struct source_location -{ - const char* file; - int line; - - explicit source_location( - const char* file_ = __builtin_FILE(), - int line_ = __builtin_LINE()) - : file{file_} - , line{line_} - {} -}; - -struct empty {}; - -template<typename T> struct id { using type = T; }; - -template<typename... Args> static constexpr isize_t types_count = sizeof...(Args); - -template<typename T, T kValue> struct integral_constant { static constexpr T value = kValue; }; -template<bool B> using bool_constant = integral_constant<bool, B>; - -using true_type = bool_constant<true>; -using false_type = bool_constant<false>; - -template<bool kSelect, typename U, typename V> struct _select_helper { using type = V; }; -template<typename U, typename V> struct _select_helper<true, U, V> { using type = U; }; - -template<bool kSelect, typename U, typename V> using select_t = _select_helper<kSelect, U, V>::type; - -template<typename U, typename V> struct _same_as_helper : false_type {}; -template<typename T> struct _same_as_helper<T, T> : true_type {}; - -template<typename U, typename V> concept same_as = _same_as_helper<U, V>::value && _same_as_helper<V, U>::value; - -template<typename T> auto _as_lref_helper(int) -> id<T&>; -template<typename T> auto _as_lref_helper(...) -> id<T>; - -template<typename T> auto _as_rref_helper(int) -> id<T&&>; -template<typename T> auto _as_rref_helper(...) -> id<T>; - -template<typename T> using as_lref_t = decltype(_as_lref_helper<T>(0))::type; -template<typename T> using as_rref_t = decltype(_as_rref_helper<T>(0))::type; - -template<typename T> consteval as_rref_t<T> declval() {} - -template<typename T> struct _un_ref_t { using type = T; }; -template<typename T> struct _un_ref_t<T&> { using type = T; }; -template<typename T> struct _un_ref_t<T&&> { using type = T; }; - -template<typename T> using un_ref_t = _un_ref_t<T>::type; - -template<typename T, typename... Args> concept constructible_from = __is_constructible(T, Args...); - -template<typename T> concept default_constructible = constructible_from<T>; -template<typename T> concept copy_constructible = constructible_from<T, as_lref_t<const T>>; -template<typename T> concept move_constructible = constructible_from<T, as_rref_t<T>>; - -template<typename T, typename... Args> concept trivially_constructible_from = __is_trivially_constructible(T, Args...); - -template<typename T> concept trivially_default_constructible = trivially_constructible_from<T>; -template<typename T> concept trivially_copy_constructible = trivially_constructible_from<T, as_lref_t<const T>>; -template<typename T> concept trivially_move_constructible = trivially_constructible_from<T, as_rref_t<T>>; - -template<typename T, typename... Args> concept assignable_from = __is_assignable(T, Args...); - -template<typename T> concept copy_assignable = assignable_from<as_lref_t<T>, as_lref_t<const T>>; -template<typename T> concept move_assignable = assignable_from<as_lref_t<T>, as_rref_t<T>>; - -template<typename T, typename... Args> concept trivially_assignable_from = __is_trivially_assignable(T, Args...); - -template<typename T> concept trivially_copy_assignable = trivially_assignable_from<as_lref_t<T>, as_lref_t<const T>>; -template<typename T> concept trivially_move_assignable = trivially_assignable_from<as_lref_t<T>, as_rref_t<T>>; - -template<typename T> concept trivially_destructible = __is_trivially_destructible(T); - -template<typename T> concept copyable = copy_constructible<T> && copy_assignable<T>; -template<typename T> concept moveable = move_constructible<T> && move_assignable<T>; - -template<typename To, typename From> -concept convertible_from = __is_convertible(From, To); - -template<typename Derived, class Base> -concept derived_from = __is_class(Derived) && __is_class(Base) && convertible_from<const volatile Base*, const volatile Derived*>; - -using nullptr_t = decltype(nullptr); - -template<typename T> struct _un_const_helper { using type = T; }; -template<typename T> struct _un_const_helper<const T> { using type = T; }; - -template<typename T> using un_const_t = _un_const_helper<T>::type; - -template<typename T> struct _is_const_helper : false_type {}; -template<typename T> struct _is_const_helper<const T> : true_type {}; - -template<typename T> concept is_const = _is_const_helper<T>::value; - -template<typename T> struct _un_volatile_helper { using type = T; }; -template<typename T> struct _un_volatile_helper<volatile T> { using type = T; }; - -template<typename T> using un_volatile_t = _un_volatile_helper<T>::type; - -template<typename T> using un_cv_t = un_volatile_t<un_const_t<T>>; - -template<typename T> using un_cvref_t = un_ref_t<un_cv_t<T>>; - -template<typename T> concept is_void = same_as<void, un_cv_t<T>>; - -template<typename T> struct _is_ref_helper { static constexpr bool l = false; static constexpr bool r = false; }; -template<typename T> struct _is_ref_helper<T&> { static constexpr bool l = true; static constexpr bool r = false; }; -template<typename T> struct _is_ref_helper<T&&> { static constexpr bool l = false; static constexpr bool r = true; }; - -template<typename T> concept is_ref = _is_ref_helper<T>::l || _is_ref_helper<T>::r; -template<typename T> concept is_rref = _is_ref_helper<T>::r; -template<typename T> concept is_lref = _is_ref_helper<T>::l; - -template<typename T> struct _is_ptr_helper : false_type {}; -template<typename T> struct _is_ptr_helper<T*> : true_type {}; - -template<typename T> concept is_ptr = _is_ptr_helper<un_cv_t<T>>::value; - -template<typename T> struct _tame_helper { using type = T; }; - -#define TAME_HELPER_IMPL(TRAILING) \ - template<typename R, typename... Args> \ - struct _tame_helper<R(Args...) TRAILING> { using type = R(Args...); } - -TAME_HELPER_IMPL(); -TAME_HELPER_IMPL(&); -TAME_HELPER_IMPL(&&); -TAME_HELPER_IMPL(const); -TAME_HELPER_IMPL(const &); -TAME_HELPER_IMPL(const &&); -TAME_HELPER_IMPL(volatile); -TAME_HELPER_IMPL(volatile &); -TAME_HELPER_IMPL(volatile &&); -TAME_HELPER_IMPL(const volatile); -TAME_HELPER_IMPL(const volatile &); -TAME_HELPER_IMPL(const volatile &&); -TAME_HELPER_IMPL(noexcept); -TAME_HELPER_IMPL(& noexcept); -TAME_HELPER_IMPL(&& noexcept); -TAME_HELPER_IMPL(const noexcept); -TAME_HELPER_IMPL(const & noexcept); -TAME_HELPER_IMPL(const && noexcept); -TAME_HELPER_IMPL(volatile noexcept); -TAME_HELPER_IMPL(volatile & noexcept); -TAME_HELPER_IMPL(volatile && noexcept); -TAME_HELPER_IMPL(const volatile noexcept); -TAME_HELPER_IMPL(const volatile & noexcept); -TAME_HELPER_IMPL(const volatile && noexcept); - -#undef TAME_HELPER_IMPL - -template<typename T> using tame_t = _tame_helper<T>::type; - -template<typename T> struct _is_func_helper : false_type {}; -template<typename R, typename... Args> struct _is_func_helper<R(Args...)> : true_type {}; - -template<typename T> concept is_func = _is_func_helper<tame_t<T>>::value; - -template<typename T> concept is_object = !is_void<T> && !is_ref<T> && !is_func<T>; - -template<typename T> struct _is_array_helper : false_type {}; -template<typename T> struct _is_array_helper<T[]> : true_type {}; -template<typename T, int N> struct _is_array_helper<T[N]> : true_type {}; - -template<typename T> concept is_array = _is_array_helper<T>::value; - -template<typename T> struct _is_floating_point_helper : false_type {}; -template<> struct _is_floating_point_helper<float> : true_type {}; -template<> struct _is_floating_point_helper<double> : true_type {}; - -template<typename T> concept is_floating_point = _is_floating_point_helper<un_cv_t<T>>::value; - -template<typename T> struct _is_integer_helper : false_type {}; -template<> struct _is_integer_helper<int8_t> : true_type {}; -template<> struct _is_integer_helper<int16_t> : true_type {}; -template<> struct _is_integer_helper<int32_t> : true_type {}; -template<> struct _is_integer_helper<int64_t> : true_type {}; -template<> struct _is_integer_helper<uint8_t> : true_type {}; -template<> struct _is_integer_helper<uint16_t> : true_type {}; -template<> struct _is_integer_helper<uint32_t> : true_type {}; -template<> struct _is_integer_helper<uint64_t> : true_type {}; - -template<typename T> concept is_integer = _is_integer_helper<un_cv_t<T>>::value; - -template<typename T> concept is_enum = __is_enum(T); - -template<typename T> struct is_uniquely_represented : false_type {}; -template<is_integer T> struct is_uniquely_represented<T> : true_type {}; -template<is_enum T> struct is_uniquely_represented<T> : true_type {}; -template<> struct is_uniquely_represented<uint128_t> : true_type {}; -template<> struct is_uniquely_represented<byte> : true_type {}; - -template<typename T> concept uniquely_represented = is_uniquely_represented<un_cv_t<T>>::value; - -template<typename T, typename U> -concept equality_comparable_with = requires (const un_cvref_t<T>& a, const un_cvref_t<U>& b) -{ - { a == b } -> same_as<bool>; - { b == a } -> same_as<bool>; - { a != b } -> same_as<bool>; - { b != a } -> same_as<bool>; -}; - -template<typename T> concept equality_comparable = equality_comparable_with<T, T>; - -struct niche_t {}; - -template<typename T> -concept has_niche = constructible_from<T, niche_t> && equality_comparable_with<T, niche_t>; - -template<typename T> -concept is_niche = same_as<un_cvref_t<T>, niche_t>; - -template<typename T, typename U> -concept _derefs_with_indirection_as = requires(T& t) -{ - *t; - requires convertible_from<U&, decltype(*t)>; -}; - -template<typename T, typename U> -concept _derefs_reference_as = is_ref<T> && convertible_from<U&, T>; - -template<typename T, typename U> -concept _derefs_value_as = !is_ref<T> && convertible_from<U&, T&>; - -template<typename U, _derefs_with_indirection_as<U> T> -constexpr U& deref(T&& t) { return static_cast<U&>(*t); } - -template<typename U, _derefs_reference_as<U> T> -constexpr U& deref(T&& t) { return static_cast<U&>(t); } - -template<typename U, _derefs_value_as<U> T> -constexpr U& deref(T&& t) { return static_cast<U&>(t); } - -template<typename T, typename U> -concept derefs_as = _derefs_with_indirection_as<T, U> || _derefs_reference_as<T, U> || _derefs_value_as<T, U>; - -} // namespace asl |