Struct StateHandle 

pub struct StateHandle { /* private fields */ }

Shared state handle for cross-workload communication and invariant checking.

Provides type-safe publish/get semantics using std::any::Any for type erasure. Clone is cheap (Rc-based) — all clones share the same underlying storage.

Implementations

impl StateHandle

pub fn new() -> Self

Create a new empty state handle.

pub fn publish<T: Any + 'static>(&self, key: &str, value: T)

Publish a value under a key, replacing any existing value.

pub fn get<T: Any + Clone + 'static>(&self, key: &str) -> Option<T>

Get a cloned copy of the value under a key, if it exists and matches the type.

Returns None if the key doesn’t exist or the type doesn’t match.

pub fn contains(&self, key: &str) -> bool

Check whether a key exists in the state.

Trait Implementations

impl Clone for StateHandle

fn clone(&self) -> StateHandle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StateHandle

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

Formats the value using the given formatter.

impl Default for StateHandle

fn default() -> StateHandle

Returns the “default value” for a type.