mirror of
https://github.com/vector-im/element-ios.git
synced 2024-09-30 16:22:39 +00:00
30 lines
1.1 KiB
Swift
30 lines
1.1 KiB
Swift
//
|
|
// Copyright 2021 New Vector Ltd
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
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
|
|
}
|
|
}
|
|
}
|