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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-04-29 17:42:05 +0100 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-11-07 16:41:37 +0000 |
| commit | 8cc7ef8b72e408cd7d0b7f347cd508137d471208 (patch) | |
| tree | 735642dc351ac817e481765303031310d766a915 /lib | |
| parent | Fix dependent name lookup (diff) | |
| download | ilt-8cc7ef8b72e408cd7d0b7f347cd508137d471208.tar.bz2 ilt-8cc7ef8b72e408cd7d0b7f347cd508137d471208.tar.xz ilt-8cc7ef8b72e408cd7d0b7f347cd508137d471208.zip | |
Automatic type registration
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/persistance.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/lib/persistance.h b/lib/persistance.h index 04da744..f797157 100644 --- a/lib/persistance.h +++ b/lib/persistance.h @@ -75,7 +75,8 @@ namespace Persistanace { }; struct PersistanceStore { - // virtual bool persistType(const std::type_info &) = 0; + template<typename T> inline bool persistType() const; + template<typename T> inline bool persistValue(const std::string_view key, T & value) @@ -144,10 +145,37 @@ namespace Persistanace { virtual bool persist(PersistanceStore & store) = 0; + template<typename T> + constexpr static auto + typeName() + { + constexpr std::string_view name {__PRETTY_FUNCTION__}; + constexpr auto s {name.find("T = ") + 4}, e {name.rfind(']')}; + return name.substr(s, e - s); + } + + template<typename T> static void addFactory() __attribute__((constructor)); static void addFactory(const std::string_view, std::function<std::unique_ptr<Persistable>()>); static std::unique_ptr<Persistable> callFactory(const std::string_view); }; + template<typename T> + void + Persistable::addFactory() + { + addFactory(typeName<T>(), std::make_unique<T>); + } + + template<typename T> + inline bool + PersistanceStore::persistType() const + { + if constexpr (!std::is_abstract_v<T>) { + [[maybe_unused]] constexpr auto f = &Persistable::addFactory<T>; + } + return true; + } + template<typename T> struct SelectionT<std::unique_ptr<T>> : public SelectionV<std::unique_ptr<T>> { using Ptr = std::unique_ptr<T>; struct SelectionObj : public SelectionV<Ptr> { @@ -230,7 +258,7 @@ namespace Persistanace { }; } -#define STORE_TYPE store.persistType(typeid(*this)) +#define STORE_TYPE store.persistType<std::decay_t<decltype(*this)>>() #define STORE_MEMBER(mbr) store.persistValue(#mbr, mbr) #endif |