TCAの Shared Stateって どういう仕組みになってんの？

【iOS】TCAでわいわいLT会
https://uzabase-tech.connpass.com/event/309323/

Transcript

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2. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } 5IF
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3. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } 5IF
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4. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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5. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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6. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } "OZ)BTIBCMF 3FGFSFODF JO.FNPSZ lUFYUz BQQ4UPSFHF lDPVOUz ࢀরڞ༗ LockIsolated<[AnyHashable: any Reference]> ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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7. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } "OZ)BTIBCMF 3FGFSFODF JO.FNPSZ lUFYUz BQQ4UPSFHF lDPVOUz ࢀরڞ༗ LockIsolated<[AnyHashable: any Reference]> ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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8. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } "OZ)BTIBCMF 3FGFSFODF JO.FNPSZ lUFYUz BQQ4UPSFHF lDPVOUz ࢀরڞ༗ LockIsolated<[AnyHashable: any Reference]> class ValueReference: Reference { var persistenceKey : (any PersistenceKey<Value>)? … } 0CTFSWBUJPO
   QFSDFQUJPO ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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9. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } "OZ)BTIBCMF 3FGFSFODF JO.FNPSZ lUFYUz BQQ4UPSFHF lDPVOUz ࢀরڞ༗ LockIsolated<[AnyHashable: any Reference]> class ValueReference: Reference { var persistenceKey : (any PersistenceKey<Value>)? … } 0CTFSWBUJPO
   QFSDFQUJPO ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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10. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } "OZ)BTIBCMF 3FGFSFODF JO.FNPSZ lUFYUz BQQ4UPSFHF lDPVOUz ࢀরڞ༗ LockIsolated<[AnyHashable: any Reference]> class ValueReference: Reference { var persistenceKey : (any PersistenceKey<Value>)? … } 0CTFSWBUJPO
    QFSDFQUJPO ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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    TIBSFETUBUFCFUB struct InMemoryKey<Value>: PersistenceKey 1FSTJTUFODF,FZ४ڌࡾॐ࢜Λ࿈Ε͖ͯͨΑ struct AppStorageKey<Value>: PersistenceKey struct FileStorageKey<Value>: PersistenceKey
11. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } "OZ)BTIBCMF 3FGFSFODF JO.FNPSZ lUFYUz BQQ4UPSFHF lDPVOUz ࢀরڞ༗ LockIsolated<[AnyHashable: any Reference]> class ValueReference: Reference { var persistenceKey : (any PersistenceKey<Value>)? … } 0CTFSWBUJPO
    QFSDFQUJPO ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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    TIBSFETUBUFCFUB struct InMemoryKey<Value>: PersistenceKey 1FSTJTUFODF,FZ४ڌࡾॐ࢜Λ࿈Ε͖ͯͨΑ struct AppStorageKey<Value>: PersistenceKey struct FileStorageKey<Value>: PersistenceKey
12. @ObservableState struct State { @Shared(.appStorage(“count”)) var count: Int } @ObservableState struct State { @Shared(.inMemory(“text")) var text: String ɹ @Shared(.appStorage(“count”)) var count: Int } "OZ)BTIBCMF 3FGFSFODF JO.FNPSZ lUFYUz BQQ4UPSFHF lDPVOUz ࢀরڞ༗ LockIsolated<[AnyHashable: any Reference]> class ValueReference: Reference { var persistenceKey : (any PersistenceKey<Value>)? … } 0CTFSWBUJPO
    QFSDFQUJPO ˏPropertyWrapper struct Shared<Value> { let reference: any Reference public init( _ persistenceKey: some PersistenceKey<Value>, … ) { … @Dependency( PersistentReferencesKey.self ) var references … } … 5IF
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    TIBSFETUBUFCFUB struct InMemoryKey<Value>: PersistenceKey 1FSTJTUFODF,FZ४ڌࡾॐ࢜Λ࿈Ε͖ͯͨΑ struct AppStorageKey<Value>: PersistenceKey struct FileStorageKey<Value>: PersistenceKey protocol PersistenceKey<Value> { func load(…) -> Value? func save(_ value: Value) func subscribe( … ) }
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