Struct async_injector::Var

pub struct Var<T> { /* fields omitted */ }

Proxy accessor for an injected variable.

This stores a reference to the given variable and provides methods for accessing it, similarly to an RwLock, but biased towards efficient cloning.

Implementations

impl<T> Var<T>

pub fn new(value: T) -> Self

Construct a new variable holder.

impl<T> Var<T> where
    T: Clone, 

pub async fn load<'_>(&'_ self) -> T

Load the given variable, cloning the underlying value while doing so.

impl<T> Var<T>

pub async fn read<'_, '_>(&'_ self) -> RwLockReadGuard<'_, T>

Read referentially from the underlying variable.

pub async fn write<'_, '_>(&'_ self) -> RwLockWriteGuard<'_, T>

Write to the underlying variable.

Trait Implementations

impl<T> Clone for Var<T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Var<T>

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

Formats the value using the given formatter.