Trait Wrapper 

pub trait Wrapper<T> {
    type Cont<U>: ?Sized;

    // Required methods
    fn get(&self) -> &T;
    fn view(&self) -> Self::Cont<&T>;
}

The Wrapper trait established a higher-kinded interface for single-value containers.

Required Associated Types

type Cont<U>: ?Sized

Required Methods

fn get(&self) -> &T

returns a reference to the inner value

fn view(&self) -> Self::Cont<&T>

returns a view of the container containing an immutable reference to the inner value

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> Wrapper<T> for T

type Cont<U> = U