pub trait AnyView {
fn as_any(&self) -> &(dyn Any + 'static);
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static);
fn as_boxed_any(self: Box<Self, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<F, A>impl<F, A> Future for Box<F, A>where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A>where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;;
}Expand description
A view that can be downcasted to its concrete type.
This trait is automatically implemented for any T: View.
Required Methods
sourcefn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Downcast self to a mutable Any.
sourcefn as_boxed_any(self: Box<Self, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<F, A>impl<F, A> Future for Box<F, A>where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A>where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
fn as_boxed_any(self: Box<Self, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<F, A>impl<F, A> Future for Box<F, A>where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A>where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A>where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
Returns a boxed any from a boxed self.
Can be used before Box::downcast().
Examples
let boxed: Box<View> = Box::new(TextView::new("text"));
let text: Box<TextView> = boxed.as_boxed_any().downcast().unwrap();Implementations
sourceimpl dyn AnyView + 'static
impl dyn AnyView + 'static
sourcepub fn downcast_ref<T>(&self) -> Option<&T>where
T: Any,
pub fn downcast_ref<T>(&self) -> Option<&T>where
T: Any,
Attempts to downcast self to a concrete type.
sourcepub fn downcast_mut<T>(&mut self) -> Option<&mut T>where
T: Any,
pub fn downcast_mut<T>(&mut self) -> Option<&mut T>where
T: Any,
Attempts to downcast self to a concrete type.