Swift 3 New Features电子书

Swift 3 New Features

Swift 3 New Features

Credits

About the Author

About the Reviewer

www.PacktPub.com

Why subscribe?

Preface

Objectives and achievements

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. What Were They Thinking?

Apple's goals for Swift 3

Open source Swift

Contributing to Swift

Swift evolution process

Overview of accepted proposals for Swift 3

Summary

2. Discovering New Territories – Linux at Last!

Downloading Swift

Swift 3 on Mac

Swift 3 on Linux

Using the REPL

Swift Package Manager

Our first Swift program

Summary

3. Migrating to Swift 3 to Be More Swifty

How can you migrate your project…

Option1 - Migrating to Swift 3

Option 2 - Migrating to Swift 2.3

Planning ahead

Migrating with Xcode's Swift migration tool

Quick strategies for addressing issues

Summary

4. Changes to Swifts Core Will Have You Asking for More

The grand renaming

Referencing Objective-C code in Swift 3

Referencing the Objective-C selector of property getters and setters - SE-0064

Referencing Objective-C key paths [SE-0062]

Importing code from Objective-C and C APIs to Swift 3

Importing Objective-C constants as Swift types [SE-0033]

Importing as Struct

Importing as Enum

Importing Objective-C lightweight generics [SE-0057]

Importing as member [SE-0044]

Defining an initializer

Creating getters and setters

Adding methods

Creating static variables

Summary

5. Function and Operator Changes – New Ways to Get Things Done

Function declaration changes

Consistent parameter labeling [SE-0046]

Removing currying func syntax in declaration [SE0002]

Warning on Unused Results by Default [SE-0047]

Removing var from function parameter lists [SE-0003]

Removing ++ and -- operators [SE-0004]

Removing C-style for loops [SE-0007]

Removing implicit tuple splat from functions [SE-0029]

Adjusting inout declarations for type decoration [SE-0031]

Replacing equal signs with colons for attribute arguments [SE-0040]

Standardizing function type argument syntax to require parentheses [SE-0066]

Enforcing the order of defaulted parameters [SE-0060]

Making optional requirements Objective-C only [SE-0070]

Summary

6. Extra, Extra Collection and Closure Changes That Rock!

Collection and sequence type changes

Lazy FlatMap for sequence of optional [SE-0008]

Adding a first(where:) method to Sequence [SE-0032]

Add sequence(first: next:) and sequence(state: next:) [SE-0094]

A new model for collections and indices [SE-0065]

Introducing the Collection protocol

Conforming to the Collection protocol

New Range and associated indices types

Quick takeaways

Closure changes for Swift 3

Limiting inout Capture of @noescape Closures [SE-0035]

Resolution

Making non-escaping closures the default [SE-0103]

Summary

7. Hold onto Your Chair; Advanced Type Changes Are Here!

Unmanaged and UnsafePointer changes

Changing Unmanaged to use UnsafePointer [SE-0017]

Making UnsafePointer explicit using Optional [SE-0055]

Adding UnsafeRawPointer [SE-0107]

Type aliases and protocol changes

Generic type aliases [SE-0048]

Type aliases in protocols and protocol extensions [SE-0092]

Floating point changes

Enhanced Floating point protocols [SE-0067]

New rounding functions on the FloatingPoint protocol [SE-0113]

Summary

8. Oh Goodness! Look Whats New in the Foundation Framework

Mutability and Foundation value types

Value types versus reference types

Nested enumerations

Strongly typed string enumerations

Class properties

Type safe access with value types

Measurements and units

Measurement

Unit and dimension

Custom units

Custom Dimension types

Convert functions

Formatting measurements

Summary

9. Improving Your Code with Xcode Server and LLDB Debugging

Continuous integration overview with Xcode server

Bot features

Monitoring and managing bots

Configuring Xcode server

Adding repositories for the Xcode server

Configuring bots

Managing and monitoring your integration runs

Debugging with LLDB

LLDB command syntax

Managing breakpoints

Creating a breakpoint

Listing breakpoints

Modifying a breakpoint

Enabling and disabling a breakpoint

Deleting a breakpoint

Command aliases

Summary

10. Exploring Swift on the Server

IBM Swift Package catalog

Introducing our server project

Project description and dependencies

Setting up our environment and project

The Vapor framework

Routing

Creating views

Public resources

Defining our shop view

Slack integration

Making a custom integration

Updating our server to post to Slack

Summary