Struct zng_app::update::WeakOnUpdateHandle

pub struct WeakOnUpdateHandle(/* private fields */);

Weak OnUpdateHandle.

Implementations

impl WeakOnUpdateHandle

pub fn new() -> Self

New weak handle that does not upgrade.

pub fn upgrade(&self) -> Option<OnUpdateHandle>

Gets the strong handle if it is still subscribed.

Trait Implementations

impl Clone for WeakOnUpdateHandle

fn clone(&self) -> WeakOnUpdateHandle

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WeakOnUpdateHandle

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

Formats the value using the given formatter.

impl Default for WeakOnUpdateHandle

fn default() -> WeakOnUpdateHandle

Returns the “default value” for a type.

impl Hash for WeakOnUpdateHandle

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for WeakOnUpdateHandle

fn eq(&self, other: &WeakOnUpdateHandle) -> 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.

impl Eq for WeakOnUpdateHandle

impl StructuralPartialEq for WeakOnUpdateHandle