Struct SubscriptionData 

pub struct SubscriptionData { /* private fields */ }

The internal subscription implementation commonly used by other subscription implementations.

This struct is just a collection of teardown closures, stored as the closure itself.

This collection of closures represent the resources held by the subscription. To release the resources the subscription must be unsubscribed upon which the collection is drained, and the closures are called, effectively dropping everything held by the subscription before the subscription itself is dropped.

Implementations

impl SubscriptionData

pub fn new_with_teardown(teardown: Teardown) -> SubscriptionData

Trait Implementations

impl Debug for SubscriptionData

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

Formats the value using the given formatter.

impl Default for SubscriptionData

fn default() -> SubscriptionData

Returns the “default value” for a type.

impl Drop for SubscriptionData

fn drop(&mut self)

Executes the destructor for this type.

impl SubscriptionLike for SubscriptionData

fn is_closed(&self) -> bool

Returns if the subscription is closed or not. A subscription can be closed by calling unsubscribe on it. Some special subscriptions made by observables that only ever emit values during subscribe, will produce subscriptions that are created closed.

fn unsubscribe(&mut self)

Releases all resources associated with this subscription, and marks it as closed.

impl TeardownCollection for SubscriptionData

fn add_teardown(&mut self, teardown: Teardown)

Add additional teardowns to execute on unsubscribe. If the subscription is already closed, the added teardown is immediately executed!