class

EventHandler::Subscriptions

Inherits Reference < Object

A bag of Subscriptions that are torn down together. #on adds a tracked subscription and returns it, so a single one can still be re-armed or cancelled individually; #off cancels every remaining one, idempotently.

Instance methods

dispose

dispose/disposed? aliases of #off/#empty?. See Subscription#dispose.

Source

disposed?

:ditto: — whether the bag has been torn down (holds no subscriptions).

Source

empty?

Whether the bag holds no subscriptions.

Source

off

Cancels every tracked subscription and empties the bag. Idempotent.

Source

on(target, type : T.class, once = false, async = ::EventHandler.async?, at = ::EventHandler.at_end, &block : T -> Nil) : Subscription forall T

Subscribes block to type on target, tracking it for a later bulk #off. Returns the created Subscription.

Source