on_leave.h

#pragma once
 
#include <algorithm>
#include <concepts>
 
namespace coro {
 
 
template<std::invocable<> Fn>
class on_leave {
public:
    on_leave(Fn &&fn):_fn(std::forward<Fn>(fn)) {}
    ~on_leave() {_fn();}
 
protected:
    Fn _fn;
};
 
 
}