[][src]Trait downcast_rs::Downcast

pub trait Downcast: Any {
    fn into_any(self: Box<Self>) -> Box<dyn Any>;
fn as_any(&self) -> &dyn Any;
fn as_any_mut(&mut self) -> &mut dyn Any; }

Supports conversion to Any. Traits to be extended by impl_downcast! must extend Downcast.

Required methods

fn into_any(self: Box<Self>) -> Box<dyn Any>

Convert Box<Trait> (where Trait: Downcast) to Box<Any>. Box<Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

fn as_any(&self) -> &dyn Any

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any's vtable from &Trait's.

fn as_any_mut(&mut self) -> &mut dyn Any

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any's vtable from &mut Trait's.

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Implementors

impl<T: Any> Downcast for T[src]

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