protocol oriented programming
Asked on 06/20/2025
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Protocol-oriented programming is a key concept in Swift, which emphasizes the use of protocols to define a blueprint of methods, properties, and other requirements that suit a particular task or piece of functionality. Protocols can be adopted by classes, structs, and enums, allowing for a flexible and reusable code design.
In the session titled A Swift Tour: Explore Swift’s features and design, protocols are discussed as a more general way to build abstractions compared to inheritance, and they work equally well with both value and reference types. A protocol is an abstract set of requirements for a type, and a type conforms to a protocol by providing implementations of all the requirements. This session also highlights how extensions can be used to add methods, properties, and protocol conformances to any type, regardless of where that type is defined.
If you're interested in learning more about how protocols are used in Swift, you might want to check out the chapter on protocols in the session A Swift Tour: Explore Swift’s features and design.
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