Trait drying_paint::WatcherHolder

pub trait WatcherHolder<'ctx, O: ?Sized>: Clone {
    type Content: ?Sized;

    fn get_mut<F, R>(&self, owner: &mut O, f: F) -> Option<R>
    where
        F: FnOnce(&mut Self::Content) -> R;
}

Required Associated Types

type Content: ?Sized

Required Methods

fn get_mut<F, R>(&self, owner: &mut O, f: F) -> Option<R> where
    F: FnOnce(&mut Self::Content) -> R, 

Implementations on Foreign Types

impl<'ctx, T, O> WatcherHolder<'ctx, O> for Weak<RefCell<T>> where
    T: ?Sized + Watcher<'ctx, O>,
    O: ?Sized, 

type Content = T

fn get_mut<F, R>(&self, _owner: &mut O, f: F) -> Option<R> where
    F: FnOnce(&mut Self::Content) -> R, 

Implementors