diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/collection.h | 263 | ||||
| -rw-r--r-- | lib/manyPtr.h | 86 | ||||
| -rw-r--r-- | lib/persistence.h | 3 |
3 files changed, 317 insertions, 35 deletions
diff --git a/lib/collection.h b/lib/collection.h index 6802bcb..1c77e1c 100644 --- a/lib/collection.h +++ b/lib/collection.h @@ -3,29 +3,62 @@ #include <algorithm> #include <functional> #include <memory> +#include <special_members.h> #include <type_traits> #include <vector> -template<typename Object, bool shared = true> class Collection { +template<typename Ptr, typename... Others> class Collection { public: + Collection() = default; virtual ~Collection() = default; - using Ptr = std::conditional_t<shared, std::shared_ptr<Object>, std::unique_ptr<Object>>; + DEFAULT_MOVE_NO_COPY(Collection); + + using Object = Ptr::element_type; using Objects = std::vector<Ptr>; - Objects objects; + template<typename T> using OtherObjects = std::vector<T *>; + + Collection & + operator=(Objects && other) + { + objects = std::move(other); + ((std::get<OtherObjects<Others>>(otherObjects).clear()), ...); + for (const auto & other : objects) { + addOthersPtr(other.get()); + } + return *this; + } + + const Ptr & + operator[](size_t idx) const + { + return objects[idx]; + } + + template<typename T = Object> + requires(std::is_same_v<T, Object> || (std::is_base_of_v<Others, T> || ...)) + [[nodiscard]] auto + size() const noexcept + { + return containerFor<T>().size(); + } template<typename T = Object, typename... Params> auto create(Params &&... params) requires std::is_base_of_v<Object, T> { - if constexpr (shared) { + if constexpr (requires(Ptr ptr) { ptr = std::make_shared<T>(std::forward<Params>(params)...); }) { auto obj = std::make_shared<T>(std::forward<Params>(params)...); objects.emplace_back(obj); + addOthersType<T>(obj.get()); return obj; } else { - return static_cast<T *>(objects.emplace_back(std::make_unique<T>(std::forward<Params>(params)...)).get()); + auto obj = static_cast<T *>( + objects.emplace_back(std::make_unique<T>(std::forward<Params>(params)...)).get()); + addOthersType<T>(obj); + return obj; } } @@ -33,12 +66,19 @@ public: T * find() { - if (auto i = std::find_if(objects.begin(), objects.end(), - [](auto && o) { - return (dynamic_cast<T *>(o.get())); - }); - i != objects.end()) { - return static_cast<T *>(i->get()); + const auto & srcObjects = containerFor<T>(); + if constexpr (std::is_convertible_v<typename std::remove_reference_t<decltype(srcObjects)>::value_type, T *>) { + if (srcObjects.empty()) { + return nullptr; + } + return srcObjects.front(); + } + else if (auto i = std::find_if(srcObjects.begin(), srcObjects.end(), + [](auto && o) { + return dynamic_cast<T *>(std::to_address(o)) != nullptr; + }); + i != srcObjects.end()) { + return static_cast<T *>(std::to_address(*i)); } return nullptr; } @@ -58,74 +98,229 @@ public: auto apply(const auto & m, Params &&... params) const { - return apply_internal<T>(objects.begin(), objects.end(), m, std::forward<Params>(params)...); + const auto & srcObjects = containerFor<T>(); + return apply_internal<T>(srcObjects.begin(), srcObjects.end(), m, std::forward<Params>(params)...); } template<typename T = Object, typename... Params> auto rapply(const auto & m, Params &&... params) const { - return apply_internal<T>(objects.rbegin(), objects.rend(), m, std::forward<Params>(params)...); + const auto & srcObjects = containerFor<T>(); + return apply_internal<T>(srcObjects.rbegin(), srcObjects.rend(), m, std::forward<Params>(params)...); } template<typename T = Object, typename... Params> auto applyOne(const auto & m, Params &&... params) const { - return applyOne_internal<T>(objects.begin(), objects.end(), m, std::forward<Params>(params)...); + const auto & srcObjects = containerFor<T>(); + return applyOne_internal<T>(srcObjects.begin(), srcObjects.end(), m, std::forward<Params>(params)...); } template<typename T = Object, typename... Params> auto rapplyOne(const auto & m, Params &&... params) const { - return applyOne_internal<T>(objects.rbegin(), objects.rend(), m, std::forward<Params>(params)...); + const auto & srcObjects = containerFor<T>(); + return applyOne_internal<T>(srcObjects.rbegin(), srcObjects.rend(), m, std::forward<Params>(params)...); } - template<typename T = Object> + template<typename T> + requires std::is_base_of_v<Object, T> auto removeAll() { - return std::erase_if(objects, [](auto && op) { - return dynamic_cast<T *>(op.get()); - }); + auto removeAllFrom = [](auto & container) { + if constexpr (std::is_base_of_v<T, std::decay_t<decltype(*container.front())>>) { + const auto size = container.size(); + container.clear(); + return size; + } + else { + return std::erase_if(container, [](auto && objPtr) -> bool { + return dynamic_cast<const T *>(std::to_address(objPtr)); + }); + } + }; + (removeAllFrom(std::get<OtherObjects<Others>>(otherObjects)), ...); + return removeAllFrom(objects); + } + + void + clear() + { + ((std::get<OtherObjects<Others>>(otherObjects).clear()), ...); + objects.clear(); } - auto + [[nodiscard]] auto + begin() const + { + return objects.begin(); + } + + [[nodiscard]] auto end() const { return objects.end(); } - auto + [[nodiscard]] auto + rbegin() const + { + return objects.rbegin(); + } + + [[nodiscard]] auto rend() const { return objects.rend(); } + [[nodiscard]] bool + empty() const + { + return objects.empty(); + } + + decltype(auto) + emplace(Ptr && ptr) + { + const auto & object = objects.emplace_back(std::move(ptr)); + addOthersPtr(object.get()); + return object; + } + protected: + Objects objects; + std::tuple<OtherObjects<Others>...> otherObjects; + + template<typename T> + void + addOthersType(T * obj) + { + applyToOthersType<T>( + [](auto & others, auto ptr) { + others.emplace_back(ptr); + }, + obj); + } + + void + addOthersPtr(Object * obj) + { + applyToOthersPtr( + [](auto & others, auto ptr) { + others.emplace_back(ptr); + }, + obj); + } + + template<typename T, typename... Params> + requires(sizeof...(Others) == 0) + void + applyToOthersType(const auto &, Params...) + { + } + + void + applyToOthersPtr(const auto &, Object *) + requires(sizeof...(Others) == 0) + { + } + + template<typename T, typename... Params> + requires(sizeof...(Others) > 0) + void + applyToOthersType(const auto & func, Params &&... params) + { + ( + [&]() { + if constexpr (std::is_convertible_v<T *, Others *>) { + std::invoke( + func, std::get<OtherObjects<Others>>(otherObjects), std::forward<Params>(params)...); + } + }(), + ...); + } + + void + applyToOthersPtr(const auto & func, Object * obj) + requires(sizeof...(Others) > 0) + { + ( + [&]() { + if (auto ptr = dynamic_cast<Others *>(obj)) { + std::invoke(func, std::get<OtherObjects<Others>>(otherObjects), ptr); + } + }(), + ...); + } + + template<typename T> + requires((std::is_base_of_v<Others, T> || ...)) + [[nodiscard]] consteval static size_t + idx() + { + size_t typeIdx = 0; + auto found = ((++typeIdx && std::is_base_of_v<Others, T>) || ...); + return typeIdx - found; + } + + template<typename T> + [[nodiscard]] + constexpr const auto & + containerFor() const + { + if constexpr ((std::is_base_of_v<Others, T> || ...)) { + return std::get<idx<T>()>(otherObjects); + } + else { + return objects; + } + } + template<typename T = Object, typename... Params> auto apply_internal(const auto begin, const auto end, const auto & m, Params &&... params) const { - return std::count_if(begin, end, [&m, ¶ms...](auto && op) { - if (auto o = dynamic_cast<T *>(op.get())) { - std::invoke(m, o, std::forward<Params>(params)...); - return true; - } - return false; - }); + if constexpr (std::is_convertible_v<decltype(std::to_address(*begin)), T *>) { + std::for_each(begin, end, [&m, ¶ms...](auto && op) { + std::invoke(m, op, std::forward<Params>(params)...); + }); + return std::distance(begin, end); + } + else { + return std::count_if(begin, end, [&m, ¶ms...](auto && op) { + if (auto o = dynamic_cast<T *>(std::to_address(op))) { + std::invoke(m, o, std::forward<Params>(params)...); + return true; + } + return false; + }); + } } template<typename T = Object, typename... Params> auto applyOne_internal(const auto begin, const auto end, const auto & m, Params &&... params) const { - return std::find_if(begin, end, [&m, ¶ms...](auto && op) { - if (auto o = dynamic_cast<T *>(op.get())) { - return std::invoke(m, o, std::forward<Params>(params)...); - } - return false; - }); + if constexpr (std::is_convertible_v<decltype(std::to_address(*begin)), T *>) { + return std::find_if(begin, end, [&m, ¶ms...](auto && op) { + return std::invoke(m, op, std::forward<Params>(params)...); + }); + } + else { + return std::find_if(begin, end, [&m, ¶ms...](auto && op) { + if (auto o = dynamic_cast<T *>(std::to_address(op))) { + return std::invoke(m, o, std::forward<Params>(params)...); + } + return false; + }); + } } }; + +template<typename T, typename... Others> using SharedCollection = Collection<std::shared_ptr<T>, Others...>; +template<typename T, typename... Others> using UniqueCollection = Collection<std::unique_ptr<T>, Others...>; diff --git a/lib/manyPtr.h b/lib/manyPtr.h new file mode 100644 index 0000000..9e08452 --- /dev/null +++ b/lib/manyPtr.h @@ -0,0 +1,86 @@ +#pragma once + +#include <memory> +#include <tuple> + +template<typename Primary, typename... Others> class ManyPtr : Primary { +public: + using element_type = typename Primary::element_type; + + template<typename... Params> ManyPtr(Params &&... params) : Primary {std::forward<Params>(params)...} + { + updatePtrs(); + } + + using Primary::operator->; + using Primary::operator*; + using Primary::operator bool; + using Primary::get; + + template<typename... Params> + void + reset(Params &&... params) + { + Primary::reset(std::forward<Params>(params)...); + updatePtrs(); + } + + template<typename Other> + [[nodiscard]] consteval static bool + couldBe() + { + return (std::is_convertible_v<Others *, Other *> || ...); + } + + template<typename Other> + requires(couldBe<Other>()) + [[nodiscard]] auto + getAs() const + { + return std::get<idx<Other>()>(others); + } + + template<typename Other> + requires(!couldBe<Other>() && requires { std::dynamic_pointer_cast<Other>(std::declval<Primary>()); }) + [[nodiscard]] auto + dynamicCast() const + { + return std::dynamic_pointer_cast<Other>(*this); + } + + template<typename Other> + requires(!couldBe<Other>() && !requires { std::dynamic_pointer_cast<Other>(std::declval<Primary>()); }) + [[nodiscard]] auto + dynamicCast() const + { + return dynamic_cast<Other *>(get()); + } + +private: + using OtherPtrs = std::tuple<Others *...>; + + template<typename Other> + requires(couldBe<Other>()) + [[nodiscard]] consteval static bool + idx() + { + size_t typeIdx = 0; + return ((typeIdx++ && std::is_convertible_v<Others *, Other *>) || ...); + } + + void + updatePtrs() + { + if (*this) { + others = {dynamic_cast<Others *>(get())...}; + } + else { + others = {}; + } + } + + OtherPtrs others; +}; + +template<typename Primary, typename... Others> using ManySharedPtr = ManyPtr<std::shared_ptr<Primary>, Others...>; +template<typename Primary, typename... Others> using ManyUniquePtr = ManyPtr<std::unique_ptr<Primary>, Others...>; diff --git a/lib/persistence.h b/lib/persistence.h index e385b20..75bcea6 100644 --- a/lib/persistence.h +++ b/lib/persistence.h @@ -1,5 +1,6 @@ #pragma once +#include "manyPtr.h" #include <charconv> #include <format> #include <functional> @@ -200,7 +201,7 @@ namespace Persistence { } [[nodiscard]] virtual NameActionSelection setName(const std::string_view key, SelectionFactory &&) = 0; - virtual void selHandler() {}; + virtual void selHandler() { }; virtual void setType(const std::string_view, const Persistable *) = 0; SelectionPtr sel {}; |