Struct revent::Slot

pub struct Slot<T: ?Sized> { /* fields omitted */ }

List of Subscribers to a signal T.

A slot is a list in which one can store subscriber handles.

Methods

impl<T: ?Sized> Slot<T>

pub fn new(name: &'static str, manager: Rc<RefCell<Manager>>) -> Self

Create a new slot object.

The manager is used to organize multiple single/slot objects and to ensure that there are no recursive (double mutable borrow) signal chains.

name is used for error reporting and graph generation in Manager.

pub fn emit<F>(&mut self, caller: F) where
    F: FnMut(&mut T), 

Emit a signal on this signal slot.

pub fn emit_short<F>(&mut self, caller: F) where
    F: FnMut(&mut T) -> bool, 

Continue emitting only if the caller returns true. Stops if false.

pub fn sort_by<F>(&mut self, compare: F) where
    F: FnMut(&T, &T) -> Ordering, 

Sort the subscribers to this slot.

pub fn register(&mut self, item: Rc<RefCell<T>>)

Add or remove a subscriber object to this slot.

The action taken depends on whether Anchor::subscribe or Anchor::unsubscribe was called.

When adding: pushes the item to the end of the list. See sort_by if a different order is desired. When removing: finds the first matching instance and removes it.

Trait Implementations

impl<T: ?Sized> Clone for Slot<T>

fn clone(&self) -> Self

Cloning is only valid from within an Anchor::subscribe context.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: ?Sized> Debug for Slot<T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.