Struct FsmEngine 

pub struct FsmEngine { /* private fields */ }

Finite state machine engine.

Implementations

impl FsmEngine

pub fn new() -> Self

pub fn create_fsm( &mut self, name: &str, states: Vec<State>, transitions: Vec<Transition>, initial_state: &str, ) -> WorkflowResult<String>

Create a new state machine.

pub fn transition( &mut self, fsm_id: &str, event: &str, ) -> WorkflowResult<String>

Attempt a state transition.

pub fn current_state(&self, fsm_id: &str) -> WorkflowResult<&str>

Get current state.

pub fn valid_next(&self, fsm_id: &str) -> WorkflowResult<Vec<&Transition>>

Get valid next transitions.

pub fn get_history(&self, fsm_id: &str) -> WorkflowResult<&[TransitionRecord]>

Get transition history.

pub fn get_fsm(&self, fsm_id: &str) -> WorkflowResult<&StateMachine>

Get a state machine.

pub fn diagram(&self, fsm_id: &str) -> WorkflowResult<String>

Generate a Mermaid state diagram.

Trait Implementations

impl Default for FsmEngine

fn default() -> Self

Returns the “default value” for a type.