Swift Protocol-Oriented Programming Fourth Edition

Increase productivity and build faster applications with Swift 5

Jon Hoffman 지음

Packt(GCO Science) 2019년 06월 28일 출간

작품소개

책소개

▶Book Description
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.

▶What You Will Learn
- Learn the differences between object-oriented programming and protocol-oriented programming
- Understand why value types should be prioritized over reference types
- Delve into protocols, protocol inheritance, protocol composition, and protocol extensions
- Learn how to implement COW (Copy-On-Write) within your custom value types
- Understand how memory management works in Swift and how to avoid common pitfalls
- Design applications by starting with the protocol rather than the implementation

▶Key Features
- Leverage the power of Protocol-Oriented Programming in your applications
- Leverage generics to create very flexible frameworks
- Learn how to implement common design patterns in a protocol-oriented way

▶Who This Book Is For
This book is intended for Swift developers who have, at minimum an introductory knowledge of the Swift programming language and would like to understand how they can use Protocol-Oriented Programming techniques in their applications.

목차

▶TABLE of CONTENTS
1. Starting with the Protocol
2. Our Type Choices
3. Extensions
4. Generics
5. Memory Management
6. Object-Oriented Programming
7. Protocol-Oriented Programming
8. Adopting Design Patterns in Swift
9. Case Studies

책 속으로

▶What this book covers
- Chapter 1, Starting with the Protocol, looks at what protocols are and how they are used in the Swift programming language. We will also examine how protocols can be used to write very flexible and reusable code.

- Chapter 2, Our Type Choices, discusses the different types that Swift offers (structs, classes, enums, and tuples). We will look at several examples of when to use the various types and when not to.

- Chapter 3, Extensions, looks at how extensions and protocol extensions are used with the Swift programming language. We will look at examples of how extensions can be used with protocol-oriented programming.

- Chapter 4, Generics, shows how powerful generics are. Apple has stated that Generics are one of the most powerful features of Swift. We will look at how to use Generics to make very flexible types, and also how to implement the Copy-on-Write (COW) feature for our custom types.

- Chapter 5, Memory Management, looks at how Swift manages memory with Automatic Reference Counting (ARC) and how strong reference cycles can cause ARC to fail. We also look at how to use weak and unowned references.

- Chapter 6, Object-Oriented Programming, examines how we would develop characters for a video game if we were taking an object-oriented approach. In order to really appreciate the ideas behind protocol-oriented programming, we need to understand the problems it is designed to solve. We will then look at the drawbacks with this design.

- Chapter 7, Protocol-Oriented Programming, develops the same video game characters from Chapter 5, Memory Management, but this time we will take a protocol-oriented approach to the design. We will then compare the object-oriented approach and the protocol-oriented approach to see the advantages that the protocol-oriented approach offers.

- Chapter 8, Adopting Design Patterns in Swift, looks at implementing several design patterns using protocol-oriented programming. For each of the design patterns, we will look at the problem they are designed to solve and how to implement the pattern.

- Chapter 9, Case Studies, explores two case studies. This chapter is designed to pull everything from the first six chapters together to show you how to use protocol-oriented programming in real-world situations.

출판사 서평

▶ Preface
Apple announced Swift 2 at the World Wide Developers Conference (WWDC) in 2015. They also declared that Swift was the world's first protocol-oriented programming language. Judging by the name, someone might assume that protocol-oriented programming is all about the protocol or is simply object-oriented programming under a different name. These assumptions would be wrong. Protocol-oriented programming is about so much more than just the protocol; it is actually a new way of not only writing applications but thinking about the design of our application.

In the first five chapters of this book, we take an in-depth look at each of the components of the protocol-oriented programming paradigm. These chapters are designed to give you a solid understanding of the different components of protocol-oriented programming, so that you can understand how to use these components in your applications. One of the biggest misconceptions about protocol-oriented programming is that it is just another name for object-oriented programming. In Chapter 6, Object-Oriented Programming, and Chapter 7, Protocol-Oriented Programming, we take on this myth by comparing protocol-oriented programming to object-oriented programming to see what is similar and what is different. We also discuss the advantages and disadvantages of both programming paradigms.

The last two chapters are written to help you understand how you can design your application in a protocol-oriented programming way. Chapter 8, Adopting Design Patterns in Swift, looks at how we can implement several design patterns in a protocol-oriented way, and Chapter 9, Case Studies, looks at three real-world case studies to reinforce everything previously discussed in the book.

작가정보

저자(글) Jon Hoffman

Jon Hoffman has over 25 years of experience in the field of information technology. Over those years, Jon has worked in the areas of system administration, network administration, network security, application development, and architecture. Currently, Jon works as an Enterprise Software Manager for Syn-Tech Systems.Jon has developed extensively for the iOS platform since 2008. This includes several apps that he has published in the App Store, apps that he has written for third parties, and numerous enterprise applications. He has also developed mobile applications for the Android and Windows platforms. What really drives Jon is the challenges that the field of information technology provides and there is nothing more exhilarating to him than overcoming a challenge.Some of Jon's other interests are spending time with his daughters, robotic projects, 3D printing, running/walking, kayaking and playing/coaching basketball. Jon also really enjoys Tae Kwon Do where he and his oldest daughter earned their black belts together early in 2014.