diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/collection.hpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/collection.hpp b/lib/collection.hpp index 65d72f3..6802bcb 100644 --- a/lib/collection.hpp +++ b/lib/collection.hpp @@ -29,6 +29,31 @@ public: } } + template<typename T = Object> + 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()); + } + return nullptr; + } + + template<typename T = Object, typename... Params> + auto + findOrCreate(Params &&... params) + requires std::is_base_of_v<Object, T> + { + if (auto o = find<T>()) { + return o; + } + return create<T>(std::forward<Params>(params)...).get(); + } + template<typename T = Object, typename... Params> auto apply(const auto & m, Params &&... params) const |