Contents

init(upstream:receiveSubscription:receiveOutput:receiveCompletion:receiveCancel:receiveRequest:)

Creates a publisher that performs the specified closures when publisher events occur.

Declaration

init(upstream: Upstream, receiveSubscription: ((any Subscription) -> Void)? = nil, receiveOutput: ((Publishers.HandleEvents<Upstream>.Output) -> Void)? = nil, receiveCompletion: ((Subscribers.Completion<Publishers.HandleEvents<Upstream>.Failure>) -> Void)? = nil, receiveCancel: (() -> Void)? = nil, receiveRequest: ((Subscribers.Demand) -> Void)?)

Parameters

  • upstream:

    The publisher from which this publisher receives elements.

  • receiveSubscription:

    A closure that executes when the publisher receives the subscription from the upstream publisher.

  • receiveOutput:

    A closure that executes when the publisher receives a value from the upstream publisher.

  • receiveCompletion:

    A closure that executes when the publisher receives the completion from the upstream publisher.

  • receiveCancel:

    A closure that executes when the downstream receiver cancels publishing.

  • receiveRequest:

    A closure that executes when the publisher receives a request for more elements.