Trait downcast_rs::Downcast

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pub trait Downcast: Any {
    fn into_any(self: Box<Self>) -> Box<dyn Any>;

    fn into_any_rc(self: Rc<Self>) -> Rc<dyn Any>;

    fn as_any(&self) -> &dyn Any;

    fn as_any_mut(&mut self) -> &mut dyn Any;
}
Expand description

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

Required methods

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

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

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

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

Implementors