pub struct AnonRcv<'a, T: Clone, W: WatchBehavior<T> + ?Sized> { /* private fields */ }Expand description
A anonymous receiver can NOT .await a change in the Watch value.
Implementations§
Source§impl<'a, T: Clone, W: WatchBehavior<T> + ?Sized> AnonRcv<'a, T, W>
impl<'a, T: Clone, W: WatchBehavior<T> + ?Sized> AnonRcv<'a, T, W>
Sourcepub fn try_get(&mut self) -> Option<T>
pub fn try_get(&mut self) -> Option<T>
Tries to get the current value of the Watch without waiting, marking it as seen.
Sourcepub fn try_get_and<F>(&mut self, f: F) -> Option<T>where
F: Fn(&T) -> bool,
pub fn try_get_and<F>(&mut self, f: F) -> Option<T>where
F: Fn(&T) -> bool,
Tries to get the current value of the Watch if it matches the predicate
function f without waiting, marking it as seen.
Sourcepub fn try_changed(&mut self) -> Option<T>
pub fn try_changed(&mut self) -> Option<T>
Tries to get the new value of the watch without waiting, marking it as seen.
Sourcepub fn try_changed_and<F>(&mut self, f: F) -> Option<T>where
F: Fn(&T) -> bool,
pub fn try_changed_and<F>(&mut self, f: F) -> Option<T>where
F: Fn(&T) -> bool,
Tries to get the new value of the watch which satisfies the predicate
function f and returns the new value without waiting, marking it as seen.
Sourcepub fn contains_value(&self) -> bool
pub fn contains_value(&self) -> bool
Checks if the Watch contains a value. If this returns true,
then awaiting Rcv::get will return immediately.