Protocols some any
Asked on 08/21/2024
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In the context of the WWDC sessions, protocols in Swift provide a way to define a set of requirements for types, allowing for abstraction and flexibility in code design. They work well with both value and reference types, enabling polymorphism without relying solely on class inheritance. For example, in the session titled "A Swift Tour: Explore Swift’s features and design," protocols are discussed as a means to build abstractions that can be applied to various types, including collections like arrays and dictionaries.
Additionally, the session "Consume noncopyable types in Swift" explores the concept of noncopyable types and how they interact with protocols. It discusses how certain types, like the bank transfer type, do not conform to copyable, and how this affects their use with protocols.
For more detailed information on protocols and their use in Swift, you can refer to the session A Swift Tour: Explore Swift’s features and design (14:06).
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.
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.
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.