Struct StorageStateRef 

pub struct StorageStateRef<'a, Backend>(/* private fields */);

Generic State backend for an immutable shared-state guard.

This storage can expose &T through SRef, but it cannot expose &mut T and therefore does not implement SMut. A State<StorageStateRef<...>> is useful for read-only methods such as fn endpoint(self: &State<impl SRef, Self, impl InOnline>) -> &str, but it cannot be transitioned by the generated transition! macro.

Trait Implementations

impl<'a, Backend> SRef for StorageStateRef<'a, Backend>

where Backend: SharedStorageView + 'a,

fn s_ref<T, S>(inner: &Self::Inner<T, S>) -> &T

where T: StateMachineImpl,

Borrows the runtime implementation from this storage backend.

impl<'a, Backend> StateStorage for StorageStateRef<'a, Backend>

where Backend: SharedStorageView + 'a,

type Inference = InnerInference

Selects how SDiscriminated recovers the current state marker.

type Inner<T, S> = StateRef<<Backend as SharedStorageView>::ReadGuard<'a, T>, T, S> where T: StateMachineImpl

Concrete state representation used by this storage backend.

type Machine<T> = T where T: StateMachineImpl

Type that carries the state-machine implementation contract.