Struct StateMap

pub struct StateMap { /* private fields */ }

Container for application state

Implementations

impl StateMap

pub fn new() -> Self

Create a new empty state map

pub fn insert<T>(&mut self, state: T)

where T: Send + Sync + 'static,

Insert state of a specific type

pub fn get<T>(&self) -> Option<&T>

where T: Send + Sync + 'static,

Get state of a specific type

pub fn contains<T>(&self) -> bool

where T: Send + Sync + 'static,

Check if state of a specific type exists

pub fn remove<T>(&mut self) -> Option<Arc<dyn Any + Send + Sync>>

where T: Send + Sync + 'static,

Remove state of a specific type

pub fn len(&self) -> usize

Get the number of stored states

pub fn is_empty(&self) -> bool

Check if the state map is empty

Trait Implementations

impl Clone for StateMap

fn clone(&self) -> StateMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for StateMap

fn default() -> StateMap

Returns the “default value” for a type.