Method TimeMachine

fsm/state.go:307–329

TimeMachine() creates a new StateMachine instance representing the blockchain state at a specified block height, allowing for a read-only view of the past state

(height uint64)

// TimeMachine() creates a new StateMachine instance representing the blockchain state at a specified block height, allowing for a read-only view of the past state
func (s *StateMachine) TimeMachine(height uint64) (*StateMachine, lib.ErrorI) {
	// if height is zero, use the 'latest' height
	if height == 0 || height > s.height {
		height = s.height
	}
	// don't try to create a NewReadOnly with height 0 as it'll panic
	if height == 0 {
		// return the original state machine
		return s, nil
	}
	// ensure the store is the proper type to allow historical views
	store, ok := s.store.(lib.StoreI)
	if !ok {
		return nil, ErrWrongStoreType()
	}
	// create a NewReadOnly store at the specific height
	heightStore, err := store.NewReadOnly(height)
	if err != nil {
		return nil, err
	}
	// initialize a new state machine
	return New(s.Config, heightStore, s.Plugin, s.Metrics, s.log)
}

// LoadCommittee() loads the committee validators for a particular committee at a particular height
func (s *StateMachine) LoadCommittee(chainId uint64, height uint64) (lib.ValidatorSet, lib.ErrorI) {