Enum InitializationState

pub enum InitializationState<T, U = ()> {
    Initializing(HashMap<&'static str, Option<Box<dyn Any>>>, U),
    Partial,
    Initialized(Rc<T>),
}

The state of the factory. Only one state can be active at a time because once the DeviceStorage is created, there’s no way to change the keys, so there’s no need to keep the set of keys anymore.

Variants

Initializing(HashMap<&'static str, Option<Box<dyn Any>>>, U)

This represents the state of the factory before the first request to get DeviceStorage. It maintains a list of all keys that might be used for storage.

Partial

A temporary state used to help in the conversion from [Initializing] to [Initialized]. This value is never intended to be read, but is necessary to keep the memory valid while ownership is taken of the values in [Initializing], but before the values in [Initialized] are ready.

Initialized(Rc<T>)

This represents the initialized state. When this is active, it is no longer possible to add new storage keys to DeviceStorage.

Implementations

impl<T> InitializationState<T, ()>

pub fn new() -> Self

Construct the default InitializationState.

impl<T> InitializationState<T, DirectoryProxy>

pub fn with_storage_dir(storage_dir: DirectoryProxy) -> Self

Construct the default InitializationState.

Trait Implementations

impl<T, U> Default for InitializationState<T, U>

where U: Default,

fn default() -> Self

Returns the “default value” for a type.