Trait futures_signals::signal_map::SignalMapExt[−][src]

pub trait SignalMapExt: SignalMap {
    fn map_value<A, F>(self, callback: F) -> MapValue<Self, F>
    where
        F: FnMut(Self::Value) -> A,
        Self: Sized,
    { ... }

    fn key_cloned(self, key: Self::Key) -> MapWatchKeySignal<Self>
    where
        Self::Key: PartialEq,
        Self::Value: Clone,
        Self: Sized,
    { ... }

    fn for_each<U, F>(self, callback: F) -> ForEach<Self, U, F>ⓘ
Notable traits for ForEach<A, B, C>
impl<A, B, C> Future for ForEach<A, B, C> where
    A: SignalMap,
    B: Future<Output = ()>,
    C: FnMut(MapDiff<A::Key, A::Value>) -> B,     type Output = ();

    where
        U: Future<Output = ()>,
        F: FnMut(MapDiff<Self::Key, Self::Value>) -> U,
        Self: Sized,
    { ... }

    fn poll_map_change_unpin(
        &mut self, 
        cx: &mut Context<'_>
    ) -> Poll<Option<MapDiff<Self::Key, Self::Value>>>
    where
        Self: Unpin + Sized,
    { ... }

    fn boxed<'a>(
        self
    ) -> Pin<Box<dyn SignalMap<Key = Self::Key, Value = Self::Value> + Send + 'a>>
    where
        Self: Sized + Send + 'a,
    { ... }

    fn boxed_local<'a>(
        self
    ) -> Pin<Box<dyn SignalMap<Key = Self::Key, Value = Self::Value> + 'a>>
    where
        Self: Sized + 'a,
    { ... }
}

Provided methods

Returns a signal that tracks the value of a particular key in the map.

A convenience for calling SignalMap::poll_map_change on Unpin types.

Implementors