Cannot get access to state objects in log_state_change

[Icantjuddle]

Expected Behavior

I've been keeping small amounts of state in my state machine's state types (i.e. time it was activated). I'd like to be able to access this data in the logger to print it out.

So far I have been unable to figure out how to do this. I've tried log_state_change and log_event for an on_entry event but haven't figured it out.

It seems this results from the type signature and that the actual state objects could be available.

sml/include/boost/sml.hpp

Lines 2491 to 2498 in 0387da0

	template <class SM, class TDeps, class TSubs, class TSrcState, class TDstState>
	constexpr void update_current_state(SM &, TDeps &deps, TSubs &, typename SM::state_t &current_state,
	const typename SM::state_t &new_state, const TSrcState &, const TDstState &) {
	back::policies::log_state_change<typename SM::sm_t>(aux::type<typename SM::logger_t>{}, deps,
	aux::string<typename TSrcState::type>{},
	aux::string<typename TDstState::type>{});
	current_state = new_state;
	}

Actual Behavior

No way to log state objects.