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BasicFSM

Struct BasicFSM 

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pub struct BasicFSM<S, E> { /* private fields */ }
Expand description

A concrete FSM implementation with transition history and callbacks.

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impl<S: Clone + PartialEq + Debug, E: Clone + Debug> BasicFSM<S, E>

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pub fn new( initial: S, transition_fn: impl Fn(&S, &E) -> Option<S> + 'static, ) -> Self

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pub fn with_max_history(self, max: usize) -> Self

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pub fn history(&self) -> &[(S, E, S)]

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pub fn checkpoint(&self) -> S

Checkpoint: snapshot of current state (can be used for rollback)

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pub fn restore(&mut self, state: S)

Restore to a previous checkpoint

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impl<S: Clone + PartialEq + Debug, E: Clone + Debug> StateMachine for BasicFSM<S, E>

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type State = S

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type Event = E

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fn state(&self) -> &S

Current state
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fn transition(&mut self, event: &E) -> &S

Process an event, potentially transitioning to a new state. Returns the new state (or current if no transition).
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fn can_transition(&self, event: &E) -> bool

Check if a transition is valid without executing it

Auto Trait Implementations§

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impl<S, E> Freeze for BasicFSM<S, E>
where S: Freeze,

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impl<S, E> !RefUnwindSafe for BasicFSM<S, E>

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impl<S, E> !Send for BasicFSM<S, E>

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impl<S, E> !Sync for BasicFSM<S, E>

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impl<S, E> Unpin for BasicFSM<S, E>
where S: Unpin, E: Unpin,

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impl<S, E> UnsafeUnpin for BasicFSM<S, E>
where S: UnsafeUnpin,

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impl<S, E> !UnwindSafe for BasicFSM<S, E>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.