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Mastering Swift 5.3

You're reading from   Mastering Swift 5.3 Upgrade your knowledge and become an expert in the latest version of the Swift programming language

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Product type Paperback
Published in Nov 2020
Publisher Packt
ISBN-13 9781800562158
Length 418 pages
Edition 6th Edition
Languages
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Author (1):
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Jon Hoffman Jon Hoffman
Author Profile Icon Jon Hoffman
Jon Hoffman
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Toc

Table of Contents (23) Chapters Close

Preface 1. Taking the First Steps with Swift 2. Swift Documentation and Installing Swift FREE CHAPTER 3. Learning about Variables, Constants, Strings, and Operators 4. Optional Types 5. Using Swift Collections 6. Control Flow 7. Functions 8. Classes, Structures, and Protocols 9. Protocols and Protocol Extensions 10. Protocol-Oriented Design 11. Generics 12. Error Handling and Availability 13. Custom Subscripting 14. Working with Closures 15. Advanced and Custom Operators 16. Concurrency and Parallelism in Swift 17. Custom Value Types 18. Memory Management 19. Swift Formatting and Style Guide 20. Adopting Design Patterns in Swift 21. Other Books You May Enjoy
22. Index

Protocol-Oriented Design

When Apple announced Swift 2 at the World Wide Developers Conference (WWDC) in 2016, they also declared that Swift was the world's first protocol-oriented programming (POP) language. From its name, we might assume that POP is all about protocol; however, that would be a wrong assumption. POP is about so much more than just protocol; it is actually a new way of not only writing applications but also thinking about programming.

In this chapter, we will cover the following topics:

  • What is the difference between OOP and POP design?
  • What is protocol-oriented design?
  • What is protocol composition?
  • What is protocol inheritance?

Days after Dave Abrahams did his presentation on POP at WWDC 2016, there were numerous tutorials on the internet about POP that took a very object-oriented approach to it. With this statement, I mean the approach taken by these tutorials focused on replacing the superclass with protocols and protocol...

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