Trait downcast_rs::Downcast[−][src]

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

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

Required Methods

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

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

Implementors

impl<T: Any> Downcast for T
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