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Swift 3 New Features

You're reading from  Swift 3 New Features

Product type Book
Published in Oct 2016
Publisher Packt
ISBN-13 9781786469632
Pages 142 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Keith Elliott Keith Elliott
Profile icon Keith Elliott
LinkedIn
Keith Elliott is a multitalented professional with unique business and technology experience spanning telecommunications, real estate investment banking, and capital markets. His work is driven simply by problems that need solutions, whether the problem is as simple as his wifes request for a custom to-do list or as complex as interest rate derivatives and foreign exchange hedging. He graduated with an MBA from Columbia Business School with an emphasis in entrepreneurship and an undergraduate degree from Georgia Institute of Technology with a bachelor's in computer engineering. Keith's own company, GittieLabs LLC, works with startups to provide technology solutions. His vision is to equip students with the real-life experience necessary to succeed in startup and corporate life. You can find his blog on the GittieLabs LLC website, www.gittie.com. On nights and weekends, Keith can be found spending time with his family, riding motorcycles with his lovely wife, watching football, and rewatching countless hours of WWDC videos.
See other products by Keith Elliott

Table of Contents (16) Chapters

Swift 3 New Features
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
1. What Were They Thinking? 2. Discovering New Territories – Linux at Last! 3. Migrating to Swift 3 to Be More Swifty 4. Changes to Swifts Core Will Have You Asking for More 5. Function and Operator Changes – New Ways to Get Things Done 6. Extra, Extra Collection and Closure Changes That Rock! 7. Hold onto Your Chair; Advanced Type Changes Are Here! 8. Oh Goodness! Look Whats New in the Foundation Framework 9. Improving Your Code with Xcode Server and LLDB Debugging 10. Exploring Swift on the Server

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

If you maintain Objective-C or C libraries and want to expose cleaner syntax for Swift, this section is for you! We now have the ability to provide more control over how constants, global functions, and generics are imported from Objective-C and C into Swift.

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

Constants with global scope, defined in header files, are imported with the same global scope in Swift. In many cases, it would be more helpful to have related constants grouped together. In Swift 3, you can now annotate your type declarations with NS_STRING_ENUM or NS_EXTENSIBLE_STRING_ENUM to have those declarations imported as members of a common type.

Importing as Struct

If you want your constants to be imported as members of a struct, then add NS_EXTENSIBLE_STRING_ENUM to the end of your constant type declaration. For more consistent importing into Swift, name your constants using the same type as a prefix. In our example...

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Authors (1)

Profile icon Keith Elliott
LinkedIn
Keith Elliott is a multitalented professional with unique business and technology experience spanning telecommunications, real estate investment banking, and capital markets. His work is driven simply by problems that need solutions, whether the problem is as simple as his wifes request for a custom to-do list or as complex as interest rate derivatives and foreign exchange hedging. He graduated with an MBA from Columbia Business School with an emphasis in entrepreneurship and an undergraduate degree from Georgia Institute of Technology with a bachelor's in computer engineering. Keith's own company, GittieLabs LLC, works with startups to provide technology solutions. His vision is to equip students with the real-life experience necessary to succeed in startup and corporate life. You can find his blog on the GittieLabs LLC website, www.gittie.com. On nights and weekends, Keith can be found spending time with his family, riding motorcycles with his lovely wife, watching football, and rewatching countless hours of WWDC videos.
Read more
See other products by Keith Elliott

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