Struct StateMachine 

pub struct StateMachine<S: State> { /* private fields */ }

Generic state machine for validating transitions.

Implementations

impl<S: State + 'static> StateMachine<S>

pub fn new() -> Self

pub fn validate( &self, from: S, to: S, force: bool, ) -> Result<Transition<S>, TransitionError<S>>

Validate a state transition.

Returns Ok(Transition) if valid, Err(TransitionError) if invalid. If force is true, any transition is allowed (for admin overrides).

Trait Implementations

impl<S: Clone + State> Clone for StateMachine<S>

fn clone(&self) -> StateMachine<S>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<S: Debug + State> Debug for StateMachine<S>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<S: State + 'static> Default for StateMachine<S>

fn default() -> Self

Returns the “default value” for a type.