bundesmessenger-ios/RiotSwiftUI/Modules/Common/Extensions/Publisher.swift

//
// Copyright 2021-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
// Please see LICENSE files in the repository root for full details.
//

import Combine
import Foundation

extension Publisher where Failure == Never {
    /// Same as `assign(to:on:)` but maintains a weak reference to object
    ///
    /// Useful in cases where you want to pass self and not cause a retain cycle.
    func weakAssign<T: AnyObject>(to keyPath: ReferenceWritableKeyPath<T, Output>,
                                  on object: T) -> AnyCancellable {
        sink { [weak object] value in
            object?[keyPath: keyPath] = value
        }
    }
}