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Update any.h

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blueloveTH 2024-05-19 20:12:38 +08:00
parent 2081dcf979
commit e8830e6407
1 changed files with 0 additions and 27 deletions
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27
include/pocketpy/any.h
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@ -103,31 +103,4 @@ struct function<Ret(Params...)>{
}
};
template<typename T>
struct lightfunction;
template<typename Ret, typename... Params>
struct lightfunction<Ret(Params...)>{
void* _impl;
Ret (*_wrapper)(void*, Params...);
lightfunction() : _impl(nullptr), _wrapper(nullptr) {}
explicit operator bool() const { return _wrapper != nullptr; }
template<typename F>
lightfunction(const F& f){
_impl = (F*)(&f);
_wrapper = [](void* impl, Params... params) -> Ret{
F* f = (F*)(impl);
return (*f)(std::forward<Params>(params)...);
};
}
Ret operator()(Params... params) const{
if(!_wrapper) throw std::runtime_error("empty function");
return _wrapper(_impl, std::forward<Params>(params)...);
}
};
} // namespace pkpy