swift-conventions

SKILL.md

Expert decision frameworks for Swift choices that require experience. Claude knows Swift syntax — this skill provides the judgment calls.

The non-obvious trade-off: Structs with reference-type properties (arrays, classes inside) lose copy-on-write benefits. A struct containing [UIImage] copies the array reference, not images — mutations affect all "copies."

When Combine still wins: Multiple publishers needing combineLatest, merge, or debounce. Converting this to pure async/await requires manual coordination that Combine handles elegantly.

Claude 不会本能地做出专家 Swift 决策：结构与类的权衡、@MainActor 放置、async/await 与组合选择、内存管理陷阱以及 iOS 特定的反模式。在为 iOS/tvOS 应用程序编写 Swift 代码、审查 Swift 架构决策或调试内存/并发问题时使用。触发关键字：Swift、iOS、tvOS、actor、async、Sendable、retain Cycle、内存泄漏、struct、class、protocol、generic 来源：kaakati/rails-enterprise-dev。

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