Virtual table from init and deinit
Generated on 2/14/2025
1 search
It seems like you're interested in the concept of virtual tables, particularly in the context of initialization (init
) and deinitialization (deinit
). While the provided context from WWDC doesn't directly address virtual tables in Swift, it does touch on related topics such as memory allocation, performance, and protocol constraints.
For example, in the session Explore Swift performance, there is a discussion about how Swift handles function calls and memory allocation, which are relevant to understanding how objects are initialized and deinitialized in Swift. Swift protocols are represented at runtime with a table of function pointers, which is conceptually similar to virtual tables in other languages.
If you are interested in how Swift handles memory and performance, you might want to explore the session on Swift performance, which covers topics like memory layout and value copying. These concepts are crucial for understanding how Swift manages object lifecycles, including initialization and deinitialization.
If you have more specific questions about Swift's handling of these concepts, feel free to ask!

Explore the Swift on Server ecosystem
Swift is a great language for writing your server applications, and powers critical services across Apple’s cloud products. We’ll explore tooling, delve into the Swift server package ecosystem, and demonstrate how to interact with databases and add observability to applications.

Migrate your app to Swift 6
Experience Swift 6 migration in action as we update an existing sample app. Learn how to migrate incrementally, module by module, and how the compiler helps you identify code that’s at risk of data races. Discover different techniques for ensuring clear isolation boundaries and eliminating concurrent access to shared mutable state.

Explore Swift performance
Discover how Swift balances abstraction and performance. Learn what elements of performance to consider and how the Swift optimizer affects them. Explore the different features of Swift and how they’re implemented to further understand the tradeoffs available that can impact performance.

Enhance your UI animations and transitions
Explore how to adopt the zoom transition in navigation and presentations to increase the sense of continuity in your app, and learn how to animate UIKit views with SwiftUI animations to make it easier to build animations that feel continuous.

What’s new in UIKit
Explore everything new in UIKit, including tab and document launch experiences, transitions, and text and input changes. We’ll also discuss better-than-ever interoperability between UIKit and SwiftUI animations and gestures, as well as general improvements throughout UIKit.

Consume noncopyable types in Swift
Get started with noncopyable types in Swift. Discover what copying means in Swift, when you might want to use a noncopyable type, and how value ownership lets you state your intentions clearly.

Meet TabletopKit for visionOS
Build a board game for visionOS from scratch using TabletopKit. We’ll show you how to set up your game, add powerful rendering using RealityKit, and enable multiplayer using spatial Personas in FaceTime with only a few extra lines of code.

What’s new in SwiftData
SwiftData makes it easy to add persistence to your app with its expressive, declarative API. Learn about refinements to SwiftData, including compound uniqueness constraints, faster queries with #Index, queries in Xcode previews, and rich predicate expressions. Join us to explore how you can use all of these features to express richer models and improve performance in your app. To discover how to build a custom data store or use the history API in SwiftData, watch “Create a custom data store with SwiftData” and “Track model changes with SwiftData history”.

Demystify SwiftUI containers
Learn about the capabilities of SwiftUI container views and build a mental model for how subviews are managed by their containers. Leverage new APIs to build your own custom containers, create modifiers to customize container content, and give your containers that extra polish that helps your apps stand out.