Trait arc_swap::access::DynAccess

pub trait DynAccess<T> {
    // Required method
    fn load(&self) -> DynGuard<T>;
}

An object-safe version of the Access trait.

This can be used instead of the Access trait in case a type erasure is desired. This has the effect of performance hit (due to boxing of the result and due to dynamic dispatch), but makes certain code simpler and possibly makes the executable smaller.

This is automatically implemented for everything that implements Access.

Examples

use arc_swap::access::{Constant, DynAccess};

fn do_something(value: Box<dyn DynAccess<usize> + Send>) {
    let v = value.load();
    println!("{}", *v);
}

do_something(Box::new(Constant(42)));

Required Methods

fn load(&self) -> DynGuard<T>

The equivalent of Access::load.

Trait Implementations

impl<T> Access<T> for dyn DynAccess<T> + '_

type Guard = DynGuard<T>

A guard object containing the value and keeping it alive.

fn load(&self) -> Self::Guard

The loading method.

impl<T> Access<T> for dyn DynAccess<T> + Send + '_

type Guard = DynGuard<T>

A guard object containing the value and keeping it alive.

fn load(&self) -> Self::Guard

The loading method.

impl<T> Access<T> for dyn DynAccess<T> + Sync + Send + '_

type Guard = DynGuard<T>

A guard object containing the value and keeping it alive.

fn load(&self) -> Self::Guard

The loading method.

Implementors

impl<T, A> DynAccess<T> for A

where A: Access<T>, A::Guard: 'static,