swiftlang/swift-evolution on Hacker News

…generate it with std::views::enumerate. That’s why Swift completely removed that kind of for loop ( https://github.com/swiftlang/swift-evolution/blob/main/propo... ) > This stuff compiles to broadly the same assembly. At the cost of…

comment by Someone · 2026-07-10 · in Almost Always Unsigned

…interface, in addition to the usual string-ey interface that allows composition. [1]: https://github.com/swiftlang/swift-evolution/blob/main/propo... [2]: https://developer.apple.com/documentation/regexbuilder

comment by woadwarrior01 · 2026-06-28 · in Regular expressions that work “everywhere”

>[1] https://github.com/swiftlang/swift-evolution/blob/main/propo ... -- apologies to the authors, but even as a previous C++ guy, my brain twisted at that. Inside Swift is a slim language waiting to get out... and that slim language is…

comment by anextio · 2026-03-02 · in Why Objective-C

…its recommended language. (There's a decent argument it encountered it in iOS and macOS too.) [1] https://github.com/swiftlang/swift-evolution/blob/main/propo... -- apologies to the authors, but even as a previous C++ guy, my brain twisted…

comment by vintagedave · 2026-03-02 · in Why Objective-C

https://github.com/swiftlang/swift-evolution/blob/main/propo... https://github.com/swiftlang/swift-evolution/blob/main/propo... https://github.com/swiftlang/swift-evolution/blob/main/propo... https://github.com/swiftlang/swift-evolution/blo…

comment by hn-acct · 2026-02-01 · in Swift is a more convenient Rust (2023)

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Swift: Nonexhaustive Enums

story by tambourine_man · 2025-12-19 · 0 comments

…not believe that regular Swift is suitable. Meaning that you're undeniably completely wrong. [0]: https://github.com/swiftlang/swift-evolution/blob/main/visio...

comment by gjajric2 · 2025-12-10 · in Rust in the kernel is no longer experimental

Swift gained limited support for “typed throws” in Swift 6.0 (2024). https://github.com/swiftlang/swift-evolution/blob/main/propo... I say limited because the compiler doesn't (yet, as of 6.2) perform typed throw inference for closures (a…

comment by mayoff · 2025-11-12 · in Problems with C++ exceptions

…than full native applications (although that's certainly a goal, albeit a very long term one). [1]: https://github.com/swiftlang/swift-evolution/pull/2946/files

comment by objclxt · 2025-10-24 · in The Swift SDK for Android

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Opt-In Strict Memory Safety Checking in Swift 6.2

story by todsacerdoti · 2025-09-05 · 0 comments

They are actually working on that now with approchable concurrency[1]. [1] https://github.com/swiftlang/swift-evolution/blob/main/visio...

comment by frizlab · 2025-09-01 · in Isolated(any)

…and maybe that can serve as a foundation for getting to the same level of interop for Obj-C. [1]: https://github.com/swiftlang/swift-evolution/blob/main/propo... [2]: https://www.swift.org/documentation/cxx-interop/

comment by andrewjl · 2025-09-01 · in CocoaPods trunk read-only plan

…life hack: for new language features, copy-pasting the Swift Evolution proposal works pretty well! https://github.com/swiftlang/swift-evolution/tree/main/propo...

comment by _mattt · 2025-08-29 · in Show HN: Sosumi.ai – Convert Apple Developer docs to AI-readable Markdown

…interested Yet they are adding lifetime dependency annotations to Swift, making it more like Rust: https://github.com/swiftlang/swift-evolution/blob/ef71df4158... The reason for this is that static analysis simply cannot do it when the…

comment by anextio · 2025-06-28 · in Rust in the Linux kernel: part 2

There’s a section in the proposal about this: https://github.com/swiftlang/swift-evolution/blob/main/propo... Tl;dr: Sequence and Collection are incompatible with noncopyable types and conditionally conforming when elements are copyable…

comment by adamwk · 2025-05-10 · in What’s new in Swift 6.2

…feature to getting it implemented and shipped is out in the open for everyone to participate/see. https://github.com/swiftlang/swift-evolution

comment by rcruzeiro · 2025-05-10 · in What’s new in Swift 6.2

…at Apple, like iBoot firmware. https://support.apple.com/en-jo/guide/security/sec30d8d9ec1/... https://github.com/swiftlang/swift-evolution/blob/main/visio... Once upon a time, C compilers were quite lousy versus handwritten 8 and 16 bit…

comment by pjmlp · 2025-04-07 · in Apple’s Darwin OS and XNU Kernel Deep Dive

…Swift dropped C-style for loops only 10 years ago (10 years isn’t long in language design time) ( https://github.com/swiftlang/swift-evolution/blob/main/propo... ), and there still is the difference between pascal for loops, where the…

comment by Someone · 2025-03-18 · in I don't think error handling is a solved problem in language design

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Swift Evolution: Improving the approachability of data-race safety

story by SoKamil · 2025-02-25 · 0 comments

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Swift proposal: InlineArray, a fixed-size array

story by ingve · 2025-02-17 · 0 comments

Swift does that. https://github.com/swiftlang/swift-evolution/blob/main/propo...

comment by mayoff · 2025-02-01 · in In Zig, what's a writer?

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Swift-Evolution: Opt-In Strict Memory Safety Checking

story by ksec · 2025-01-24 · 0 comments

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A Vision for Embedded Swift

story by nateb2022 · 2024-12-27 · 0 comments

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Swift: Precise Control Flags over Compiler Warnings

story by ingve · 2024-12-06 · 0 comments

…how Swift Structured Concurrency (Task API) utilizes and propagates QoS is in the proposal doc. https://github.com/swiftlang/swift-evolution/blob/main/propo...

comment by eunoia · 2024-11-29 · in Prioritize work at the task level

…Swift code, to write subclasses of C++ classes in Swift, etc. without giving up performance. See https://github.com/swiftlang/swift-evolution/blob/main/visio... and the video linked to in https://forums.swift.org/t/video-swift-as-c-successo…

comment by Someone · 2024-11-14 · in Safe and efficient C++ interoperability via non-escapable types and lifetimes

…I hadn’t read this before, and it changes how I’ll approach them. Thanks for pointing it out! https://github.com/swiftlang/swift-evolution/blob/main/propo...

comment by brantonb · 2024-09-17 · in Swift 6

You can read about the trade-offs in the language proposal here: https://github.com/swiftlang/swift-evolution/blob/main/propo... In particular: > Even with the introduction of typed throws into Swift, the existing (untyped) throws remains…

comment by airspeedswift · 2024-09-17 · in Swift 6

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Integer Generic Parameters

story by todsacerdoti · 2024-08-28 · 0 comments

…allows one to create a lifetime dependency between a function's return value and its parameters: https://github.com/apple/swift-evolution/blob/d9aa90bae13e35...

comment by adamwk · 2024-06-10 · in Deep Dive into Ownership in Mojo

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Objective-C Implementations in Swift

story by ingve · 2024-05-10 · 0 comments

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Objective-C Implementations in Swift

story by todsacerdoti · 2024-05-09 · 0 comments

…how well those paths are supported. 0. https://github.com/apple/swift/blob/main/CHANGELOG.md 1. https://github.com/apple/swift-evolution/blob/main/proposals... 2. https://github.com/apple/swift-package-manager/pull/3905

comment by pdpi · 2024-05-06 · in Swift's native Clocks are inefficient

…We're building a roadmap now and would love to make sure our work items are comprehensive. [1] https://github.com/apple/swift-evolution/blob/main/visions/e... [2] https://www.swift.org/blog/sswg-update-2024/ [3]…

comment by timsneath · 2024-04-15 · in Swift for C++ Practitioners, Part 1: Intro and Value Types

That is the direction that Swift went: https://github.com/apple/swift-evolution/blob/main/proposals...

comment by conradev · 2024-03-31 · in Overview: What are Cpp2 and cppfront? How do I get and build cppfront?

A Vision for Embedded Swift ( https://github.com/apple/swift-evolution/blob/main/visions/e... ) has the details on this new build mode and is quite interesting. Effectively, there will be two bottom layers of Swift, and the lower one,…

comment by glhaynes · 2024-03-12 · in Byte-Sized Swift: Building Tiny Games for the Playdate

Detailed rationale is in the Swift Evolution proposal ( https://github.com/apple/swift-evolution/blob/main/proposals... ) This also isn’t a problem specific to Swift. Many strongly typed languages run into it. Examples: - C# (…

comment by Someone · 2024-03-08 · in Iterate over Parameter Packs in Swift 6.0

…They're not in the type system formally so maybe they're closer to poloneius work [1]: https://github.com/apple/swift-evolution/blob/3055becc53a3c3...

comment by adamwk · 2024-03-04 · in Borrow checking without lifetimes

…approach for safe concurrency that builds on Milano et al’s ideas (shared co-author as well): https://github.com/apple/swift-evolution/blob/main/proposals...

comment by riscy · 2024-03-01 · in Functional ownership through fractional uniqueness

…aren’t going away but Apple is trying to evolve the language to cater to various performance needs. https://github.com/apple/swift-evolution/blob/main/proposals...

comment by adamwk · 2024-01-13 · in Apple hiring compiler developers for improving Swift / C++ interoperability

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The Swift proposal that removed the ++ and –- operators (2017)

story by flykespice · 2023-11-07 · 1 comment

…time. Not to mention recently added support for non-copyable types that enforces unique ownership: https://github.com/apple/swift-evolution/blob/main/proposals...

comment by daaaaaaan · 2023-10-03 · in Crafting Self-Evident Code with D

…addTwo = add(2) addTwo(3) That functionality was removed, though. For reasoning behind that, see https://github.com/apple/swift-evolution/blob/main/proposals... .

comment by Someone · 2023-09-03 · in Currying in Kotlin

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Statically link Swift runtime libraries by default on supported platforms

story by dcgudeman · 2023-08-31 · 0 comments

…a language that doesn’t have indexes at all would be viable. Swift abandoned C-style for loops ( https://github.com/apple/swift-evolution/blob/main/proposals... ) It still has enumerated ( https://developer.apple.com/documentation/swift/seq…

comment by Someone · 2023-06-10 · in Ask HN: Can Lua be remade to use 0-based numbering?

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Using C++ from Swift: The Vision Document

story by goranmoomin · 2023-06-10 · 0 comments

…their name). It’s not just a SwiftUI thing, they’re also used for regular expressions for example: https://github.com/apple/swift-evolution/blob/main/proposals...

comment by slavapestov · 2023-06-07 · in Ownership in Swift: Manifesto and meta-proposal (2017)

…type, and when this happens currently there are no solutions; There's now a warning about this: https://github.com/apple/swift-evolution/blob/main/proposals... . What other solutions can there be other than making it a hard error? It seems…

comment by slavapestov · 2023-06-06 · in Ownership in Swift: Manifesto and meta-proposal (2017)

Just last week owning and borrowing parameters got accepted as well. https://github.com/apple/swift-evolution/blob/main/proposals... It’s been the focus for a while especially after the concurrency work. It’s probably the final major…

comment by adamwk · 2023-06-06 · in Ownership in Swift: Manifesto and meta-proposal (2017)

…www.hackingwithswift.com/articles/258/whats-new-in-s... , which refers to a few Swift Evolution docs: https://github.com/apple/swift-evolution/blob/main/proposals... https://github.com/apple/swift-evolution/blob/main/proposals...…

comment by Someone · 2023-06-06 · in Ownership in Swift: Manifesto and meta-proposal (2017)