Existential types
Asked on 08/12/2024
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It seems like you're interested in existential types, which are not directly covered in the provided context from the WWDC sessions. However, I can provide some insights into related topics discussed in the sessions.
In the session titled "A Swift Tour: Explore Swift’s features and design," Swift's emphasis on value types and immutability is highlighted. Swift uses value types extensively, which do not share state and are easier to reason about, especially in concurrent programming. This session also covers reference types like classes, which are used when shared mutable state is necessary.
In the session "What’s new in Swift," there is a discussion on non-copyable types and type throws, which are advanced features that help manage performance and error handling in Swift. These features allow for more precise control over resource management and error types, which can be crucial in systems with severe resource constraints.
If you are interested in specific aspects of Swift's type system or performance optimizations, you might want to explore the sessions "Explore Swift performance" and "Go small with Embedded Swift," which delve into memory layout, dynamically-sized types, and the use of Swift in embedded systems.
For more detailed exploration of these topics, you can refer to the following sessions:
- A Swift Tour: Explore Swift’s features and design (Value types)
- What’s new in Swift (Noncopyable types)
- Explore Swift performance (Dynamically-sized types)
If you have more specific questions or need further details, feel free to ask!
A Swift Tour: Explore Swift’s features and design
Learn the essential features and design philosophy of the Swift programming language. We’ll explore how to model data, handle errors, use protocols, write concurrent code, and more while building up a Swift package that has a library, an HTTP server, and a command line client. Whether you’re just beginning your Swift journey or have been with us from the start, this talk will help you get the most out of the language.
What’s new in Swift
Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.
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.