serif::utils::dependencies::NodeObserverCallbacks Concept Reference

Completion must be safe during stack unwinding and receives the state created by the before hook. More...

#include <observers.hpp>

Concept definition

template<typename BeforeT, typename AfterT>
concept serif::utils::dependencies::NodeObserverCallbacks =  std::invocable<BeforeT&> &&
        std::is_object_v<std::invoke_result_t<BeforeT&>> && std::move_constructible<std::invoke_result_t<BeforeT&>> &&
        requires(AfterT& after, std::invoke_result_t<BeforeT&>& state, NodeOutcome outcome) {
            { std::invoke(after, state, outcome) } noexcept -> std::same_as<void>;
        }

Detailed Description

Completion must be safe during stack unwinding and receives the state created by the before hook.