技能 swift-concurrency
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swift-concurrency
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外部命令🌐
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Implementierung von Swift Concurrency-Mustern
Swift Concurrency führt async/await, Actors und strukturierte Nebenläufigkeit ein. Diese Kompetenz bietet Expertenleitfäden zur sicheren Einführung dieser Muster, zur Vermeidung von Data Races und zur Migration bestehender Codebasen zu Swift 6 mit Compile-Zeit-Thread-Sicherheit.
支援: Claude Codex Code(CC)
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測試它
正在使用「swift-concurrency」。 Convert my closure-based API fetch to async/await
預期結果:
- ## Converted async/await pattern
- • Removed completion handler parameter
- • Added async keyword to function
- • Used try await for network call
- • Errors propagate automatically
- • Simplified error handling with do-catch
正在使用「swift-concurrency」。 Make my cache class thread-safe using an actor
預期結果:
- ## Actor-based thread safety
- • Converted class to actor type
- • Isolated mutable state within actor
- • Automatic synchronization on access
- • Added Sendable if passing across boundaries
正在使用「swift-concurrency」。 Fix Sendable conformance warnings in my model
預期結果:
- ## Sendable conformance options
- • Value types are inherently Sendable
- • Classes can conform with @unchecked
- • Document safety invariants for @unchecked
- • Consider region isolation for collections
安全審計
安全v5 • 1/16/2026
Pure documentation skill containing only markdown reference files. No executable code, no network calls, no file system access, no environment access, and no external commands. Provides safe educational guidance on Swift Concurrency patterns.
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分析行數
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風險因素
⚙️ 外部命令 (799)
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🌐 網路存取 (103)
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審計者: claude 查看審計歷史 →
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你能建構什麼
async/await-Muster einführen
Migrieren Sie netzwerkbasierten Code mit Completion-Handlern zu moderner async/await-Syntax mit proper Fehlerbehandlung
Thread-Sicherheit implementieren
Nutzen Sie Actors und Sendable-Typen zum Schutz von gemeinsam genutztem veränderlichen Status und zur Vermeidung von Data Races
Migration zu Swift 6
Navigieren Sie durch strikte Nebenläufigkeitsprüfung, ermöglichen Sie graduelle Einführung und beheben Sie Isolationswarnungen
試試這些提示
Grundlegende async-Konvertierung
Convert this completion handler based network call to use async/await syntax: [paste closure-based code]
Actor-Implementierung
Refactor this class with shared mutable state to use an actor for thread-safe access: [paste class code]
Sendable-Konformität
Make this struct or class Sendable compliant and explain why it or is not safe to transfer across isolation boundaries: [paste type definition]
Swift 6-Migration
Help me migrate this Swift 5 code to Swift 6. Fix these concurrency warnings: [paste code with diagnostics]
最佳實務
- Bevorzugen Sie strukturierte Nebenläufigkeit mit Task-Gruppen gegenüber losgelösten Tasks für automatische Abbruchmöglichkeit
- Nutzen Sie Actors für gemeinsam genutzten veränderlichen Status anstelle von Locks oder Dispatch-Queues
- Machen Sie Typen Sendable bei der Übergabe über Isolationsgrenzen hinweg, um Compile-Zeit-Sicherheit zu ermöglichen
- Schließen Sie alle Actor-Statusänderungen vor Suspension-Points ab, um Reentrancy-Bugs zu verhindern
避免
- @MainActor als pauschale Lösung verwenden ohne Notwendigkeit des Main-Threads zu begründen
- @unchecked Sendable verwenden, um Warnungen zu unterdrücken, ohne Thread-Sicherheit nachzuweisen
- Langlaufende Arbeit auf Actors behalten, die unnötige Konflikte verursacht
- Annehmen, dass Status nach await unverändert bleibt aufgrund von Actor-Reentrancy
常見問題
Welche Swift-Versionen unterstützen Nebenläufigkeitsfunktionen?
Async/await erfordert Swift 5.5+. Actors, Task-Groups und AsyncSequence wurden in Swift 5.5 veröffentlicht. Swift 6 ermöglicht vollständige strikte Nebenläufigkeitsprüfung standardmäßig.
Was sind die Hauptgrenzen der Nebenläufigkeit?
Tasks können den verfügbaren Thread-Pool nicht überschreiten. Actors serialisieren den Zugriff, was Konflikte verursachen kann. Task-Erstellung hat Overhead, daher vermeiden Sie das Erstellen von Tausenden von Tasks für triviale Arbeit.
Wie integriert sich dies mit bestehendem Code?
Nutzen Sie Task {}, um synchrone zu asynchronen Kontexten zu überbrücken. Wickeln Sie Completion-Handler mit withCheckedContinuation ein. Führen Sie Nebenläufigkeit modulweise graduell ein.
Sind meine Daten bei der Nutzung dieser Kompetenz sicher?
Diese Kompetenz bietet nur Anleitungsdokumentation. Keine Code-Ausführung, kein Datenzugriff, keine Netzwerkanrufe. Alle Ratschläge sind schreibgeschützte Anleitungen.
Warum sehe ich Sendable-Warnungen?
Swift erzwingt Compile-Zeit-Thread-Sicherheit. Typen, die Isolationsgrenzen überschreiten, müssen Sendable sein. Nutzen Sie Wertetypen, Actors oder @unchecked Sendable nur mit dokumentierter Begründung.
Wie vergleicht sich dies mit Combine?
Swift Concurrency bietet strukturierte, imperative asynchrone Codeausführung. Combine nutzt reaktive Streams. Für einfache asynchrone Operationen ist async/await einfacher. Combine zeichnet sich bei komplexen Ereignistransformationen aus.