Struct trillium::StateSet

pub struct StateSet(/* private fields */);

Store and retrieve values by TypeId. This allows storing arbitrary data that implements Sync + Send + 'static.

Implementations

impl StateSet

pub fn new() -> StateSet

Create an empty StateSet.

pub fn insert<T>(&mut self, val: T) -> Option<T>

where T: Send + Sync + 'static,

Insert a value into this StateSet.

If a value of this type already exists, it will be returned.

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

where T: 'static,

Check if container contains value for type

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

where T: 'static,

Get a reference to a value previously inserted on this StateSet.

pub fn get_mut<T>(&mut self) -> Option<&mut T>

where T: 'static,

Get a mutable reference to a value previously inserted on this StateSet.

pub fn take<T>(&mut self) -> Option<T>

where T: 'static,

Remove a value from this StateSet.

If a value of this type exists, it will be returned.

pub fn get_or_insert<T>(&mut self, default: T) -> &mut T

where T: Send + Sync + 'static,

Gets a value from this StateSet or populates it with the provided default.

pub fn get_or_insert_with<F, T>(&mut self, default: F) -> &mut T

where F: FnOnce() -> T, T: Send + Sync + 'static,

Gets a value from this StateSet or populates it with the provided default function.

Trait Implementations

impl AsMut<StateSet> for Conn

fn as_mut(&mut self) -> &mut StateSet

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<StateSet> for Conn

fn as_ref(&self) -> &StateSet

Converts this type into a shared reference of the (usually inferred) input type.

impl Debug for StateSet

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

Formats the value using the given formatter.

impl Default for StateSet

fn default() -> StateSet

Returns the “default value” for a type.