import Combine
import Foundation
// RelayState was copied from CombineX (https://github.com/cx-org/CombineX) by Quentin Jin. It is licensed under the MIT
// License.
//
//
// MIT License
//
// Copyright (c) 2019 Quentin Jin
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
enum CombineXRelayState {
case waiting
case relaying(Subscription)
case completed
}
extension CombineXRelayState {
var isWaiting: Bool {
switch self {
case .waiting: true
default: false
}
}
var isRelaying: Bool {
switch self {
case .relaying: true
default: false
}
}
var isCompleted: Bool {
switch self {
case .completed: true
default: false
}
}
var subscription: Subscription? {
switch self {
case let .relaying(s): s
default: nil
}
}
}
extension CombineXRelayState {
mutating func relay(_ subscription: Subscription) -> Bool {
guard isWaiting else {
return false
}
self = .relaying(subscription)
return true
}
mutating func complete() -> Subscription? {
defer {
self = .completed
}
return subscription
}
}
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(vorverarbeitet am 2026-11-04)
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