Struct Token 

pub struct Token<T> { /* private fields */ }

An immutable token carrying a typed value through the Petri net.

Tokens flow from place to place as transitions fire, carrying typed payloads that represent the state of a computation or workflow.

Implementations

impl<T> Token<T>

pub fn new(value: T) -> Self

Creates a token with the given value and current timestamp.

pub fn at(value: T, created_at: u64) -> Self

Creates a token with a specific timestamp (for testing/replay).

pub fn from_arc(value: Arc<T>, created_at: u64) -> Self

Creates a token wrapping an existing Arc value.

pub fn value(&self) -> &T

Returns a reference to the token’s value.

pub fn value_arc(&self) -> Arc<T>

Returns a clone of the Arc-wrapped value (cheap).

pub fn created_at(&self) -> u64

Returns the creation timestamp in epoch milliseconds.

Trait Implementations

impl<T: Clone> Clone for Token<T>

fn clone(&self) -> Token<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Token<T>

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

Formats the value using the given formatter.