Expand description
Convert into Any.
This is useful for converting an unsized trait object to Any.
Important
Make sure that you call as_ref on the correct type.
For example, if self: Box<T> then self.as_any() gives you <Box<T> as Any>
but you probably want self.as_ref().as_any() for <T as Any>.
Example
use relearn::utils::any::AsAny;
use std::any::Any;
trait MyTrait: AsAny {
fn foo(&self) -> usize;
}
impl MyTrait for () {
fn foo(&self) -> usize {1}
}
let x: Box<dyn MyTrait> = Box::new(());
assert_eq!(x.foo(), 1);
let y: &dyn Any = x.as_ref().as_any();
let z: () = *(y.downcast_ref().unwrap());
assert_eq!(z.foo(), 1);