Trait UpcastFrom 

pub trait UpcastFrom<T: ?Sized> {
    // Required methods
    fn up_from(value: &T) -> &Self;
    fn up_from_mut(value: &mut T) -> &mut Self;
    fn up_from_box(value: Box<T>) -> Box<Self>;
}

Implement this trait for your dyn Trait types for all T: Trait

Required Methods

fn up_from(value: &T) -> &Self

fn up_from_mut(value: &mut T) -> &mut Self

fn up_from_box(value: Box<T>) -> Box<Self>

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<'a, T: DynAny<'a> + 'a> UpcastFrom<T> for dyn DynAny<'a> + 'a