92: Deinit
- Paul Hudson's What's New in Swift 5.5
- Swift By Sundell
- Time by Dave DeLong (mistakenly called Chronos during the show)
04: Bridging with Objective-C
enMarch 27, 2017
What was the main topic of the podcast episode?
Summarise the key points discussed in the episode?
Were there any notable quotes or insights from the speakers?
Which popular books were mentioned in this episode?
Were there any points particularly controversial or thought-provoking discussed in the episode?
Were any current events or trending topics addressed in the episode?
About this Episode
Swift has evolved since 1.x to have a fluctuating amount of magic/implicit bridging from ObjC and Foundation types, sometimes going in the opposite direction towards very explicit type conversions.
We've started seeing more of what the "steady state" looks like as Swift 3.x/4.x development matures.
In the early days, Swift users would need deep compiler internal implementation details to know which NSNumber-representable type could implicitly convert. As of SE-0139 that's a lot clearer.
The subtleties of unenforced protocol conformance semantics: https://oleb.net/blog/2016/12/protocols-have-semantics/
Proposals on bridging
- New from Doug Gregor, limiting
@objcinference: https://github.com/DougGregor/swift-evolution/blob/objc-inference/proposals/NNNN-objc-inference.md NSNumberandNSValue: https://github.com/apple/swift-evolution/blob/master/proposals/0139-bridge-nsnumber-and-nsvalue.md- Optional to payload or
NSNull: https://github.com/apple/swift-evolution/blob/master/proposals/0140-bridge-optional-to-nsnull.md - ObjC lightweight generics: https://github.com/apple/swift-evolution/blob/master/proposals/0057-importing-objc-generics.md
- Import
idasAny: https://github.com/apple/swift-evolution/blob/master/proposals/0116-id-as-any.md NSErrorbridging: https://github.com/apple/swift-evolution/blob/master/proposals/0112-nserror-bridging.md- Fully eliminate implicit bridging: https://github.com/apple/swift-evolution/blob/master/proposals/0072-eliminate-implicit-bridging-conversions.md
- Remove bridging conversion behavior from dynamic casts: https://github.com/apple/swift-evolution/blob/master/proposals/0083-remove-bridging-from-dynamic-casts.md
- Ole Begemann on "Protocols are more than Bags of Syntax": https://oleb.net/blog/2016/12/protocols-have-semantics/
- No protocol for non-user constructable types (e.g. library-vendored types) :(
- Conventions are useful, even if not for technical reasons. Case study with Realm trying to buck NSError ObjC conventions: https://github.com/realm/realm-cocoa/pull/1123
Recent Episodes from Swift Unwrapped
91: Concurrency, 3 years later
Links
- Swift concurrency roadmap
- Episode 27: Concurrency with Chris Lattner
- [Concurrency] Actors & actor isolation
- [Concurrency] Interoperability with Objective-C
- [Concurrency] Structured concurrency
- [Concurrency] Asynchronous functions
- [Concurrency] AsyncSequence
- Swift Concurrency Proposals Dependencies Graph
- Protocol-based Actor Isolation: Draft #2
- Actors are reference types, but why classes?
Sponsors
- AWS Amplify - AWS Amplify is a suite of tools and services for iOS developers to build full stack serverless and cloud-based mobile apps. Check out our getting started Tutorial for iOS! Go to awsamplify.info/IOS
Get in Touch
If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.
90: Swift Atomics
Links
- Announcement blog post
- Karoy Lorentey
- GitHub Repository
- Atomics forum
- Hacker News Discussion
- Guillaume Lessard’s existing swift-atomics repo
Sponsors
- AWS Amplify - AWS Amplify is a suite of tools and services for iOS developers to build full stack serverless and cloud-based mobile apps. Check out our getting started Tutorial for iOS! Go to awsamplify.info/IOS
Get in Touch
If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.
We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped.
89: Implementing the Swift Runtime in Swift, with Jordan Rose
What’s in a Swift runtime?
- Swift on Mac OS 9
- Heap Objects
- Type Layout
- Type Metadata
- Uniquing Caches
- Class Metadata
- Class Metadata Initialization
Other links
- Layout guarantees
- Steve Troughton-Smith’s BitPaint
- @ksherlock’s mpw
- An explainer on Swift weak references
About Jordan
Sponsors
- Instabug - Get Application Performance Monitoring built for mobile apps and stay on top of your app quality with Instabug. Check them out and them them know we sent you at https://try.instabug.com/SwiftUnwrapped
- AWS Amplify - AWS Amplify is a suite of tools and services for iOS developers to build full stack serverless and cloud-based mobile apps. Check out our getting started Tutorial for iOS! Go to awsamplify.info/IOS
Get in Touch
If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.
We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped.
88: Swift 5.3
- 5.3 release process
- Swift for Linux distros
- AWS lambda Runtime
- Swift Service Lifecycle
- Swift Cluster membership
- Proposals accepted/implemented in 5.3
- Commit history for Swift 5.3 branch
- Mike Ash's perf PR
- Hacking with Swift What’s New in Swift 5.3
Get in Touch
If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.
We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped
87: Package Registries and Indexes
- Swift Package Index
- Swift Package Registry
Get in Touch
If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.
We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped
86: Tuples
SE-0282 Tuples conform to Equatable, Comparable, and Hashable
- Acceptance: https://forums.swift.org/t/accepted-se-0283-tuples-conform-to-equatable-comparable-and-hashable/36658
- Review: https://forums.swift.org/t/se-0283-tuples-conform-to-equatable-comparable-and-hashable/36140
- Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0283-tuples-are-equatable-comparable-hashable.md
Bow: https://bow-swift.io
👋 Get in Touch
We are @swift_unwrapped on twitter. Follow us, ask us a question, let us know what you think of the show! If you want to follow us individually, we're @jesse_squires and @simjp.
🖤 Leave A Review
If you're enjoying the show. The best and easiest way to show your support is by heading over to iTunes and leaving us a review! Not only do you let us know what you like about the show, but you're also helping other Swift language folks find the show.
Head over to our iTunes page to share your opinion of the show!
85: Swift on Windows and other news
- Foundation on Windows: https://forums.swift.org/t/swift-soars-ever-higher/34036
- Interoperability between Swift and C++: https://forums.swift.org/t/manifesto-interoperability-between-swift-and-c/33874
- Swift playgrounds for mac: https://apps.apple.com/us/app/swift-playgrounds/id1496833156?mt=12
- Swift crypto: https://swift.org/blog/crypto/
- Standard Library Preview Package: https://swift.org/blog/preview-package/
- Update on SE-0110 and SE-0155: https://forums.swift.org/t/update-on-se-0110-and-se-0155/33948
🙏 Thanks to today's sponsor: Square
Check out the tutorial for Square’s In-App Payments SDK for iOS on their new developer YouTube channel: youtube.com/squaredev
👋 Get in Touch
We are @swift_unwrapped on twitter. Follow us, ask us a question, let us know what you think of the show! If you want to follow us individually, we're @jesse_squires and @simjp.
🖤 Leave A Review
If you're enjoying the show. The best and easiest way to show your support is by heading over to iTunes and leaving us a review! Not only do you let us know what you like about the show, but you're also helping other Swift language folks find the show.
Head over to our iTunes page to share your opinion of the show!
84: Swift World Tour 2020
- Magic file names: https://github.com/apple/swift-evolution/blob/master/proposals/0274-magic-file.md
- Multi-pattern catch clauses
- https://github.com/apple/swift-evolution/blob/master/proposals/0276-multi-pattern-catch-clauses.md
- https://forums.swift.org/t/se-0276-multi-pattern-catch-clauses/32620
- Road to Swift 6: https://forums.swift.org/t/on-the-road-to-swift-6/32862
👋 Get in Touch
We are @swift_unwrapped on twitter. Follow us, ask us a question, let us know what you think of the show! If you want to follow us individually, we're @jesse_squires and @simjp.
🖤 Leave A Review
If you're enjoying the show. The best and easiest way to show your support is by heading over to iTunes and leaving us a review! Not only do you let us know what you like about the show, but you're also helping other Swift language folks find the show.
Head over to our iTunes page to share your opinion of the show!
83: Modify Accessors
Get in Touch
If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.
We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped