Trait ref_cast::RefCast

source ·
pub trait RefCast {
    type From: ?Sized;

    // Required methods
    fn ref_cast(from: &Self::From) -> &Self;
    fn ref_cast_mut(from: &mut Self::From) -> &mut Self;
Expand description

Safely cast &T to &U where the struct U contains a single field of type T.

// `&String` can be cast to `&U`.
struct U(String);

// `&T` can be cast to `&V<T>`.
struct V<T> {
    t: T,

See the crate-level documentation for usage examples!

Required Associated Types§

Required Methods§


fn ref_cast(from: &Self::From) -> &Self


fn ref_cast_mut(from: &mut Self::From) -> &mut Self

Object Safety§

This trait is not object safe.