@200074317303167056063064256070046203054064052214::CanObserveNode Concept Reference

Observer lifetime callbacks must agree on an owned state and cannot fail while closing it. More...

Concept definition

template<typename BeforeT, typename AfterT>
concept @200074317303167056063064256070046203054064052214::CanObserveNode =  requires(BeforeT&& before, AfterT&& after) {
        dependencies::observe_node<First>(std::forward<BeforeT>(before), std::forward<AfterT>(after));
    }

Detailed Description

Observer lifetime callbacks must agree on an owned state and cannot fail while closing it.