With Swift being brought to new places, is anyone working on interoperability with PHP? I'd love to replace much of my PHP and Javascript web code with Swift (and ideally SwiftUI for UI design). Are there any projects/people working in this space?
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Hey everyone,
I have a problem with an app im creating. The code doesn't have any errors but the console has this that pops up:
Snapshot request 0x1054191d0 complete with error: <NSError: 0x10541a970; domain: FBSSceneSnapshotErrorDomain; code: 4; "an unrelated condition or state was not satisfied"> {
NSLocalizedDescription = an error occurred during a scene snapshotting operation;
}
I’ve been struggling with this issue for a long time. When I try to archive my app to submit it to the App Store, I encounter two errors:
Linker command failed with exit code 1 (use -v to see invocation)
Linker command failed with exit code 1 (use -v to see invocation)
Topic:
Programming Languages
SubTopic:
Swift
In scope of one of our project we've faced an issue with constant crashes when integrating C++ library in Swift code using Swift/C++ interoperability.
Investigating the root causes of the issue we've discovered that with new version of Swift bug was introduced.
Long story short: for strings bigger than 27 symbols memory is feed incorrectly that causes the crashes.
By creating this post I wanted to draw community's attention to the problem and promote it to be solved quicker as for now it is not addressed.
A few questions. One, can I safely upgrade to my project to Swift 6.2 without having to require iOS 26+? Two, where do I actually make the upgrade. This is what I see in build settings:
6.2 is not available in the dropdown?
PLATFORM AND VERSION
iOS
Development environment: Xcode 26, macOS 26
Run-time configuration: iOS 18 and up
DESCRIPTION OF PROBLEM
I am on the beta version of os 26 for both Xcode and macOS. When I try to run my project, which has the Swift OpenAPI Generator from apple, it gives the error "unsupported configuration: the aggregate target 'OpenAPIGenerator' has package dependencies, but targets that build for different platforms depend on it"
STEPS TO REPRODUCE
Install macOS 26 and Xcode 26 and try running an iOS app built for iOS 18.0 and up wit the OpenAPIGenerator package on a physical iPhone running iOS 26
Topic:
Programming Languages
SubTopic:
Swift
I want to load images from my bundle, which works fine when running the main app. However this does not work when running UI Tests. I read that the test bundle is not the main bundle when running tests. I try loading the bundle via this snippet:
let bundle = Bundle(for: Frames_HoerspielUITests.self)
This is my test class wrapped these the canImport statements so it can be added to the main app target and used for getting the correct bundle:
#if canImport(XCTest)
import XCTest
final class Frames_HoerspielUITests: XCTestCase {
override func setUpWithError() throws {
continueAfterFailure = false
}
override func tearDownWithError() throws { }
@MainActor
func testExample() throws {
let app = XCUIApplication()
app.launch()
}
@MainActor
func testLaunchPerformance() throws {
measure(metrics: [XCTApplicationLaunchMetric()]) {
XCUIApplication().launch()
}
}
}
#else
final class Frames_HoerspielUITests { }
#endif
However while this works when running the main app, it still fails in the UI tests. It is a SwiftUI only app. and I can't add the images to the asset catalog because they are referenced from another location.
Any ideas? Thank you
谁能告诉我为什么?
“[正在运行] swift ”d:\vscode object\swift object\ceshi.swift”
JIT 会话错误:未找到符号:[ $ss 27_allocateUninitializedArrayySayxG_BptBwlFyp_Tg5 ]
未能具体化符号: { (main, { main, $sSa 12_endMutationyyF, $ss 5print_9separator10terminatoryypd_S2StFfA0_, $ss 5print_9separator10terminatoryypd_S2StFfA1_, $ss 27_finalizeUninitializedArrayySayxGABnlF }) }
[完成] 在 0.47 秒内退出并带有 code=4294967295”
当“Swift for Windows”在 VSCode for Windows 上运行时。
路径为 true,“Package-swift-lsp: Path”为 true。
谁能告诉我为什么?
Topic:
Programming Languages
SubTopic:
Swift
Module compiled with Swift 6.0.3 cannot be imported by the Swift 6.1 compiler: /private/var/tmp/_bazel_xx/8b7c61ad484d9da1bf94a11f12ae6ffd/rules_xcodeproj.noindex/build_output_base/execroot/main/CustomModules/BIYThred/CocoaLumberjack/framework/CocoaLumberjack.framework/Modules/CocoaLumberjack.swiftmodule/arm64-apple-ios.swiftmodule
Hello
I want to implement customisation to swift argumentparser, Here are following changes want to do it in my cli
changing default footer present in help command output
currently help command output coming like this
OVERVIEW: clisample
USAGE: clisample <subcommand>
OPTIONS:
--version show the version.
-h, --help show the help.
SUBCOMMANDS:
logs (default) Export logs for clisample processes.
See 'clisample --help' for more information.'
so instead of
See 'clisample --help' for more information.'
I want my own string
For more details, run 'clisample help <subcommand>'
customise error string getting from validation error
Error: Missing value for '-t <time>'
Help: -t <time> Time window (e.g. 10h, 30m, 2d).
Usage: clisample logs --time <time>
See 'clisample logs --help' for more information.
so I want error output with example and customised footer, like this
Error: Missing value for '-t <time>'
Help: -t <time> Time window (e.g. 10h, 30m, 2d).
Usage: clisample logs --time <time>
Example: clisample logs -t 5m
For more details, run 'clisample help <subcommand>'
Is this changes possible from anyway?
Is anyone have this problem on xcode 26 ?
Undefined symbol: _swift_FORCE_LOAD$_swiftCompatibility50
Undefined symbol: _swift_FORCE_LOAD$_swiftCompatibility51
Undefined symbol: _swift_FORCE_LOAD$_swiftCompatibility56
Undefined symbol: _swift_FORCE_LOAD$_swiftCompatibilityConcurrency
Undefined symbol: _swift_FORCE_LOAD$_swiftCompatibilityDynamicReplacements
Hi, I've got this view model that will do a search using a database of keywords. It worked fine when the SearchEngine wasn't an actor but a regular class and the SearchResult wasn't a Sendable. But when I changed them, it returned Type of expression is ambiguous without a type annotation error at line 21 ( searchTask = Task {). What did I do wrong here? Thanks.
protocol SearchableEngine: Actor {
func searchOrSuggest(from query: String) -> SearchResult?
func setValidTitles(_ validTitles: [String])
}
@MainActor
final class SearchViewModel: ObservableObject {
@Published var showSuggestion: Bool = false
@Published var searchedTitles: [String] = []
@Published var suggestedKeyword: String? = nil
private var searchTask: Task<Void, Never>?
private let searchEngine: SearchableEngine
init(searchEngine: SearchableEngine) {
self.searchEngine = searchEngine
}
func search(_ text: String) {
searchTask?.cancel()
searchTask = Task {
guard !Task.isCancelled else { return }
let searchResult = await searchEngine.searchOrSuggest(from: text) ?? .notFound
guard !Task.isCancelled else { return }
await MainActor.run {
switch searchResult {
case let .searchItems(_, items):
showSuggestion = false
searchedTitles = items.map(\.title)
suggestedKeyword = nil
case let .suggestion(keyword, _, items):
showSuggestion = true
searchedTitles = items.map(\.title)
suggestedKeyword = keyword
case .notFound:
showSuggestion = false
searchedTitles = []
suggestedKeyword = nil
}
}
}
}
}
When i am trying to archive a framework for ML, using below command:
xcodebuild -workspace "./src/MLProject.xcworkspace" -configuration "Release" -sdk "iphoneos" -archivePath "./gen/out/Archives/Release-iphoneos/MLProject" -scheme "MLProject" -derivedDataPath "./gen/out/" archive BUILD_LIBRARY_FOR_DISTRIBUTION=YES SKIP_INSTALL=NO
The same command used to work fine on Xcode 16.4.
Attached is the detailed error
MLProject_Archive_failure.txt
Error: "Attrubute can only be applied to types not declarations" on line 2 : @unchecked
@unchecked
enum ReminderRow : Hashable, Sendable {
case date
case notes
case time
case title
var imageName : String? {
switch self {
case .date: return "calendar.circle"
case .notes: return "square.and.pencil"
case .time: return "clock"
default : return nil
}
}
var image : UIImage? {
guard let imageName else { return nil }
let configuration = UIImage.SymbolConfiguration(textStyle: .headline)
return UIImage(systemName: imageName, withConfiguration: configuration)
}
var textStyle : UIFont.TextStyle {
switch self {
case .title : return .headline
default : return .subheadline
}
}
}
I can't find any simple c++ xcodeproj call to swift struct using modern c++ swift mix. there is the fibonacci example that is swift app call to c++.
Base on fibonacci example I create new simple project and fail to build it with error when I try to include #include <SwiftMixTester/SwiftMixTester-Swift.h>
What is wrong?
Is it the right place to ask this?
Any work project link?
Xcode 26.
Topic:
Programming Languages
SubTopic:
Swift
Does anyone know if the resources .copy rule in a Swift .package file is supposed to recursively copy the full contents if it's pointed at a directory?
The docs say…
If you pass a directory path to the copy rule, the compiler retains the directory’s structure.
…but you can interpret that in a few different ways.
It also doesn’t appear to work if the directory you specify only contains directories.
I am implementing the FFT using vDSP.DiscreteFourierTransform. According to the official documentation, the count parameter has requirements as outlined below:
/// The `count` parameter must be:
/// * For split-complex real-to-complex: `2ⁿ` or `f * 2ⁿ`, where `f` is `3`, `5`, or `15` and `n >= 4`.
/// * For split-complex complex-to-complex: `2ⁿ` or `f * 2ⁿ`, where `f` is `3`, `5`, or `15` and `n >= 3`.
/// * For interleaved: `f * 2ⁿ`, where `f` is `2`, `3`, `5`, `3x3`, `3x5`, or `5x5`, and `n>=2`.
Despite adhering to these specifications in theory, my attempt to initialize an interleaved DFT with count = 2 * 2 * 5 * 5 (equivalent to 5×5 × 2²) resulted in a failure. Below is the code snippet I used for the initialization:
do {
let dft = try vDSP.DiscreteFourierTransform(
previous: nil,
count: 2 * 2 * 5 * 5,
direction: .forward,
transformType: .complexReal,
ofType: DSPComplex.self
)
print(dft)
} catch {
print("DFT init failed:", error)
}
Could somebody more knowledgeable with these APIs have a look? Thanks!
I'm trying to use FormatStyle from Foundation to format numbers when printing a vector structure. See code below.
import Foundation
struct Vector<T> {
var values: [T]
subscript(item: Int) -> T {
get { values[item] }
set { values[item] = newValue }
}
}
extension Vector: CustomStringConvertible {
var description: String {
var desc = "( "
desc += values.map { "\($0)" }.joined(separator: " ")
desc += " )"
return desc
}
}
extension Vector {
func formatted<F: FormatStyle>(_ style: F) -> String where F.FormatInput == T, F.FormatOutput == String {
var desc = "( "
desc += values.map { style.format($0) }.joined(separator: " ")
desc += " )"
return desc
}
}
In the example below, the vector contains a mix of integer and float literals. The result is a vector with a type of Vector<Double>. Since the values of the vector are inferred as Double then I expect the print output to display as decimal numbers. However, the .number formatted output seems to ignore the vector type and print the values as a mix of integers and decimals. This is fixed by explicitly providing a format style with a fraction length. So why is the .formatted(.number) method ignoring the vector type T which is Double in this example?
let vec = Vector(values: [-2, 5.5, 100, 19, 4, 8.37])
print(vec)
print(vec.formatted(.number))
print(vec.formatted(.number.precision(.fractionLength(1...))))
( -2.0 5.5 100.0 19.0 4.0 8.37 ) // correct output that uses all Double types
( -2 5.5 100 19 4 8.37 ) // wrong output that uses Int and Double types
( -2.0 5.5 100.0 19.0 4.0 8.37 ) // correct output that uses all Double types
Hello, I was hoping to clarify my understanding of the use of for await with an AsyncStream. My use case is, I'd like to yield async closures to the stream's continuation, with the idea that, when I use for await with the stream to process and execute the closures, it would only continue on to the following closure once the current closure has been run to completion.
At a high level, I am trying to implement in-order execution of async closures in the context of re-entrancy. An example of asynchronous work I want to execute is a network call that should write to a database:
func syncWithRemote() async -> Void {
let data = await fetchDataFromNetwork()
await writeToLocalDatabase(data)
}
For the sake of example, I'll call the intended manager of closure submission SingleOperationRunner.
where, at a use site such as this, my desired outcome is that call 1 of syncWithRemote() is always completed before call 2 of it:
let singleOperationRunner = SingleOperationRunner(priority: nil)
singleOperationRunner.run {
syncWithRemote()
}
singleOperationRunner.run {
syncWithRemote()
}
My sketch implementation looks like this:
public final class SingleOperationRunner {
private let continuation: AsyncStream<() async -> Void>.Continuation
public init(priority: TaskPriority?) {
let (stream, continuation) = AsyncStream.makeStream(of: (() async -> Void).self)
self.continuation = continuation
Task.detached(priority: priority) {
// Will this loop only continue when the `await operation()` completes?
for await operation in stream {
await operation()
}
}
}
public func run(operation: @escaping () async -> Void) {
continuation.yield(operation)
}
deinit {
continuation.finish()
}
}
The resources I've found are https://developer.apple.com/videos/play/wwdc2022-110351/?time=1445 and https://forums.swift.org/t/swift-async-func-to-run-sequentially/60939/2 but do not think I have fully put the pieces together, so would appreciate any help!
I am writing a SPM based project for MacOS. In this project? I need to access MacOS Keychain.
I am write a swift test built by SPM testTarget(). I can see it generates a bundle ./.build/x86_64-apple-macosx/debug/MyProjectTests.xctest with an executable:
% file ./.build/x86_64-apple-macosx/debug/MyProjectPackageTests.xctest/Contents/MacOS/MyProjectPackageTests
./.build/x86_64-apple-macosx/debug/MyProjectPackageTests.xctest/Contents/MacOS/MyProjectPackageTests: Mach-O 64-bit bundle x86_64
This bundle file cannot be executed. How can I execute its tests?
I tried with xcodebuild test-without-building -xctestrun ./.build/x86_64-apple-macosx/debug/MyProjectPackageTests.xctest -destination 'platform=macOS' without any chance.
Obviously the next question is can I 'simply' add entitlement to this bundle with codesign to fix my enttilement error.
My error when running the test is A required entitlement isn't present.