Book Image

Swift Protocol-Oriented Programming - Fourth Edition

By : Jon Hoffman
Book Image

Swift Protocol-Oriented Programming - Fourth Edition

By: Jon Hoffman

Overview of this book

Protocol-oriented programming is an incredibly powerful concept at the heart of Swift's design. Swift's standard library was developed using POP techniques, generics, and first-class value semantics; therefore, it is important for every Swift developer to understand these core concepts and take advantage of them. The fourth edition of this book is improved and updated to the latest version of the Swift programming language. This book will help you understand what protocol-oriented programming is all about and how it is different from other programming paradigms such as object-oriented programming. This book covers topics such as generics, Copy-On-Write, extensions, and of course protocols. It also demonstrates how to use protocol-oriented programming techniques via real-world use cases. By the end of this book, you will know how to use protocol-oriented programming techniques to build powerful and practical applications.
Table of Contents (11 chapters)

Summary

In this chapter, we looked at extensions and protocol extensions. In the original version of Swift, we were able to use extensions to extend structures, classes, and enumerations, but since Swift 2, we have also been able to use extensions to extend protocols.

Without protocol extensions, protocol-oriented programming would not be possible, but we need to make sure that we use protocol extensions where appropriate and do not try to use them where regular extensions should be used.

In the next chapter, we will look at the final piece of the protocol-oriented puzzle: generics.