Function newPersistenceObserver

pkg/runtime/persistence_observer.go:50–55

newPersistenceObserver returns an observer that persists to store, or nil when store is nil so the constructor can call [WithEventObserver] unconditionally without a guard.

(store session.Store)

// nil when store is nil so the constructor can call [WithEventObserver]
// unconditionally without a guard.
func newPersistenceObserver(store session.Store) *PersistenceObserver {
	if store == nil {
		return nil
	}
	return &PersistenceObserver{store: store}
}

// OnRunStart persists the session row before the run loop starts.
// Sub-sessions skip this: the parent session's store absorbs them via