22 lines
650 B
Swift
22 lines
650 B
Swift
//
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// Copyright 2021-2024 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only
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// Please see LICENSE in the repository root for full details.
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//
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import Combine
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import Foundation
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extension Publisher where Failure == Never {
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/// Same as `assign(to:on:)` but maintains a weak reference to object
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///
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/// Useful in cases where you want to pass self and not cause a retain cycle.
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func weakAssign<T: AnyObject>(to keyPath: ReferenceWritableKeyPath<T, Output>,
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on object: T) -> AnyCancellable {
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sink { [weak object] value in
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object?[keyPath: keyPath] = value
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}
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}
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}
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