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Index
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Downloading the example code
Downloading the color images of this book
Errata
Piracy
Questions
Starting with the Protocol
Protocol syntax
Defining a protocol
Property requirements
Method requirements
Optional requirements
Protocol inheritance
Protocol composition
Using protocols as a type
Polymorphism with protocols
Type casting with protocols
Associated types with protocols
Delegation
Designing with protocols
Protocols in the Swift standard library
Summary
Our Type Choices
Classes
Structures
Access controls
Enumerations
Tuples
Protocols
Value and reference types
Recursive data types for reference types only
Inheritance for reference types only
Dynamic dispatch
Swift's built-in types
Copy-on-write
Summary
Extensions
Defining an extension
Protocol extensions
Text validation
Extensions with the Swift standard library
Conforming to the Equatable protocol
Summary
Generics
Generic functions
Type constraints with Generics
Generic types
Associated types
Generic subscripts
Copy-on-write
Generics in a protocol-oriented design
Generics in the Swift standard library
Summary
Object-Oriented Programming
What is object-oriented programming?
Requirements for the sample code
Swift as an object-oriented programming language
Issues with the object-oriented design
Summary
Protocol-Oriented Programming
Requirements for the sample code
Swift as a protocol-oriented programming language
Summarizing protocol-oriented programming and object-oriented programming
Differences between object-oriented programming and protocol-oriented programming
Protocol and protocol extensions compared with superclasses
Implementing vehicle types
Using value and reference types
The winner is...
Summary
Adopting Design Patterns in Swift
What are design patterns?
Creational patterns
The singleton design pattern
Understanding the problem
Understanding the solution
Implementing the singleton pattern
The builder design pattern
Understanding the problem
Understanding the solution
Implementing the builder pattern
The factory method pattern
Understanding the problem
Understanding the solution
Implementing the factory method pattern
Structural design patterns
The bridge pattern
Understanding the problem
Understanding the solution
Implementing the bridge pattern
The facade pattern
Understanding the problem
Understanding the solution
Implementing the facade pattern
The proxy design pattern
Understanding the problem
Understanding the solution
Implementing the proxy pattern
Behavioral design patterns
The command design pattern
Understanding the problem
Understanding the solution
Implementing the command pattern
The strategy pattern
Understanding the problem
Understanding the solution
Implementing the strategy pattern
The observer pattern
Understanding the problem
Understanding the solution
Implementing the observer pattern
Summary
Case Studies
Logging service
Requirements
The design
Conclusion
Data access layer
Requirements
The design
Data model layer
Data helper layer
Bridge layer
Using the data access layer
Conclusion
Summary
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