Enum Listeners

pub enum Listeners {
    None,
    Pending(Box<[Option<Rc<dyn Listener>>]>),
}

A list of event listeners

Variants

None

No listeners registered or pending. Distinct from Pending with an empty slice to avoid an allocation.

Pending(Box<[Option<Rc<dyn Listener>>]>)

Not yet added to the element or registry

Trait Implementations

impl Clone for Listeners

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Listeners

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

Formats the value using the given formatter.

impl Default for Listeners

fn default() -> Self

Returns the “default value” for a type.

impl ImplicitClone for Listeners

fn implicit_clone(&self) -> Self

This function is not magic; it is literally defined as

impl PartialEq for Listeners

fn eq(&self, rhs: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.