[−][src]Trait intertrait::cast::CastMut

pub trait CastMut {
    fn cast<T: ?Sized + 'static>(&mut self) -> Option<&mut T>;
}

A trait that is blanket-implemented for traits extending CastFrom to allow for casting of a trait object for it behind an mutable reference to a trait object for another trait implemented by the underlying value.

Examples

use intertrait::cast::*;

impl Source for Data {}
let mut data = Data;
let source: &mut dyn Source = &mut data;
let greet = source.cast::<dyn Greet>();
greet.unwrap().greet();

Required methods

`fn cast<T: ?Sized + 'static>(&mut self) -> Option<&mut T>`

Casts a mutable reference to this trait into that of type T.

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Implementors

`impl<S: ?Sized + CastFrom> CastMut for S`[src]

A blanket implementation of CastMut for traits extending CastFrom.

`fn cast<T: ?Sized + 'static>(&mut self) -> Option<&mut T>`[src]