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Invalidate child store subscriptions #3646

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merged 2 commits into from
Apr 7, 2025
Merged

Invalidate child store subscriptions #3646

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e956ee7
Cut off firehose when core is invalid.
mbrandonw Apr 4, 2025
fe9c4bb
wip
mbrandonw Apr 4, 2025
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12 changes: 6 additions & 6 deletions Examples/Integration/Integration/iOS 17/ObservableSharedStateTestCase.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -112,12 +112,12 @@ private struct Feature {
defaults.removeObject(forKey: "isOn")
}
case .resetButtonTapped:
state.isAppStorageOn1 = false
state.isAppStorageOn2 = false
state.fileStorage1.isOn = false
state.fileStorage2.isOn = false
state.isInMemoryOn1 = false
state.isInMemoryOn2 = false
state.$isAppStorageOn1.withLock { $0 = false }
state.$isAppStorageOn2.withLock { $0 = false }
state.$fileStorage1.withLock { $0.isOn = false }
state.$fileStorage2.withLock { $0.isOn = false }
state.$isInMemoryOn1.withLock { $0 = false }
state.$isInMemoryOn2.withLock { $0 = false }
return .none
case .writeToFileStorageButtonTapped:
return .run { [isOn = state.fileStorage1.isOn] _ in
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3 changes: 2 additions & 1 deletion Sources/ComposableArchitecture/Store.swift
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Expand Up @@ -371,7 +371,8 @@ public final class Store<State, Action> {

if let stateType = State.self as? any ObservableState.Type {
func subscribeToDidSet<T: ObservableState>(_ type: T.Type) -> AnyCancellable {
core.didSet
return core.didSet
.prefix { [weak self] _ in self?.core.isInvalid != true }
.compactMap { [weak self] in (self?.currentState as? T)?._$id }
.removeDuplicates()
.dropFirst()
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1 change: 1 addition & 0 deletions Tests/ComposableArchitectureTests/StorePerceptionTests.swift
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Expand Up @@ -32,6 +32,7 @@ final class StorePerceptionTests: BaseTCATestCase {
}

@MainActor
@available(*, deprecated)
func testPerceptionCheck_AccessStateWithoutTracking() {
@MainActor
struct FeatureView: View {
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