I am using SwiftlySearch on iOS 14 and .searchable on iOS 15.
struct CompatibleSearchBarModifier: ViewModifier {
@Binding var text: String
@ViewBuilder
func body(content: Content) -> some View {
if #available(iOS 15.0, *) {
content.searchable(text: self.$text, prompt: "Placeholder")
} else {
content.navigationBarSearch(self.$text, placeholder: "Placeholder", hidesSearchBarWhenScrolling: true, cancelClicked: {text = ""})
}
}
}
The app crashes on iOS 14.7.1-14.8 devices based on Crashlytics. Unfortunately, I can’t reproduce the problem on Xcode 13.2.1 since I can’t use these iOS versions on the simulator (I tried this library without any success: https://github.com/JinjunHan/iOSDeviceSupport). Any ideas what could I do in this situation?
Crashed: com.apple.main-thread
0 libswiftCore.dylib 0x313dbc swift::ResolveAsSymbolicReference::operator()(swift::Demangle::__runtime::SymbolicReferenceKind, swift::Demangle::__runtime::Directness, int, void const*)
1 libswiftCore.dylib 0x33170c swift::Demangle::__runtime::Demangler::demangleSymbolicReference(unsigned char)
2 libswiftCore.dylib 0x32e970 swift::Demangle::__runtime::Demangler::demangleType(__swift::__runtime::llvm::StringRef, std::__1::function<swift::Demangle::__runtime::Node* (swift::Demangle::__runtime::SymbolicReferenceKind, swift::Demangle::__runtime::Directness, int, void const*)>)
3 libswiftCore.dylib 0x31935c swift_getTypeByMangledNameImpl(swift::MetadataRequest, __swift::__runtime::llvm::StringRef, void const* const*, std::__1::function<swift::TargetMetadata<swift::InProcess> const* (unsigned int, unsigned int)>, std::__1::function<swift::TargetWitnessTable<swift::InProcess> const* (swift::TargetMetadata<swift::InProcess> const*, unsigned int)>)
4 libswiftCore.dylib 0x316d58 swift::swift_getTypeByMangledName(swift::MetadataRequest, __swift::__runtime::llvm::StringRef, void const* const*, std::__1::function<swift::TargetMetadata<swift::InProcess> const* (unsigned int, unsigned int)>, std::__1::function<swift::TargetWitnessTable<swift::InProcess> const* (swift::TargetMetadata<swift::InProcess> const*, unsigned int)>)
5 libswiftCore.dylib 0x316f6c swift_getTypeByMangledNameInContext
6 Menetrend 0xb7b0 __swift_instantiateConcreteTypeFromMangledName + 4331173808 (<compiler-generated>:4331173808)
7 Menetrend 0x205750 CompatibleSearchBarModifier.body(content:) + 1107 (FavouritesView.swift:1107)
8 SwiftUI 0x60a160 partial apply for closure #1 in ModifierBodyAccessor.updateBody(of:changed:)
9 SwiftUI 0x62c364 closure #1 in BodyAccessor.setBody(_:)
10 SwiftUI 0x609a64 ModifierBodyAccessor.updateBody(of:changed:)
11 SwiftUI 0x62c770 DynamicBody.updateValue()
12 SwiftUI 0x32f764 partial apply for implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
13 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
14 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
15 AttributeGraph 0xa718 AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, bool*, long)
16 AttributeGraph 0x1b3c0 AGGraphGetValue
17 SwiftUI 0x972c80 _ConditionalContent<>.ChildView.content.getter
18 SwiftUI 0x972e20 _ConditionalContent<>.ChildView.value.getter
19 SwiftUI 0x972f30 protocol witness for Rule.value.getter in conformance _ConditionalContent<A, B><>.ChildView
20 SwiftUI 0x23e6e0 implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
21 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
22 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
23 AttributeGraph 0xa718 AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, bool*, long)
24 AttributeGraph 0x1b3c0 AGGraphGetValue
25 SwiftUI 0x62fec8 AnyViewList.updateValue()
26 SwiftUI 0x205f0c partial apply for specialized implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
27 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
28 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
29 AttributeGraph 0xa718 AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, bool*, long)
30 AttributeGraph 0x1b3c0 AGGraphGetValue
31 SwiftUI 0x4661e8 DynamicLayoutViewAdaptor.updatedItems()
32 SwiftUI 0x4cac4 specialized DynamicContainerInfo.updateItems(disableTransitions:)
33 SwiftUI 0x4b854 specialized DynamicContainerInfo.updateValue()
34 SwiftUI 0x1c924c partial apply for specialized implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
35 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
36 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
37 AttributeGraph 0xa718 AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, bool*, long)
38 AttributeGraph 0x1b3c0 AGGraphGetValue
39 SwiftUI 0x328b5c DynamicPreferenceCombiner.info.getter
40 SwiftUI 0x328d00 DynamicPreferenceCombiner.value.getter
41 SwiftUI 0x23e6e0 implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
42 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
43 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
44 AttributeGraph 0xa718 AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, bool*, long)
45 AttributeGraph 0x1b3c0 AGGraphGetValue
46 SwiftUI 0x5d7510 HostPreferencesTransform.updateValue()
47 SwiftUI 0x32f764 partial apply for implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
48 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
49 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
50 AttributeGraph 0xa718 AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, bool*, long)
51 AttributeGraph 0x1b3c0 AGGraphGetValue
52 SwiftUI 0x5d7510 HostPreferencesTransform.updateValue()
53 SwiftUI 0x32f764 partial apply for implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
54 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
55 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
56 AttributeGraph 0xa718 AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, bool*, long)
57 AttributeGraph 0x1b3c0 AGGraphGetValue
58 SwiftUI 0x7e4d0 specialized HostPreferencesTransform.updateValue()
59 SwiftUI 0x1e4590 partial apply for specialized implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:)
60 AttributeGraph 0x5108 AG::Graph::UpdateStack::update()
61 AttributeGraph 0x5518 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, bool)
62 AttributeGraph 0xa1a8 AG::Graph::value_ref(AG::AttributeID, AGSwiftMetadata const*, bool*)
63 AttributeGraph 0x1b408 AGGraphGetValue
64 SwiftUI 0x8e9f38 GraphHost.preferenceValues()
65 SwiftUI 0x84fcec specialized GraphHost.preferenceValue<A>(_:)
66 SwiftUI 0x84aacc specialized ViewRendererHost.updateViewGraph<A>(body:)
67 SwiftUI 0x6463c specialized closure #1 in UINavigationController.update<A>(with:in:)
68 SwiftUI 0x45cf40 thunk for @escaping @callee_guaranteed () -> ()
69 SwiftUI 0x84ed74 closure #1 in ViewRendererHost.render(interval:updateDisplayList:)
70 SwiftUI 0x84ae68 ViewRendererHost.render(interval:updateDisplayList:)
71 SwiftUI 0x9a7654 _UIHostingView.layoutSubviews()
72 SwiftUI 0x9a7680 @objc _UIHostingView.layoutSubviews()
73 UIKitCore 0x102f8bc -[UIView(CALayerDelegate) layoutSublayersOfLayer:]
74 QuartzCore 0x15e424 -[CALayer layoutSublayers]
75 QuartzCore 0x164bac CA::Layer::layout_if_needed(CA::Transaction*)
76 QuartzCore 0x17016c CA::Layer::layout_and_display_if_needed(CA::Transaction*)
77 QuartzCore 0xb8578 CA::Context::commit_transaction(CA::Transaction*, double, double*)
78 QuartzCore 0xe32c8 CA::Transaction::commit()
79 UIKitCore 0xb4d8b0 __34-[UIApplication _firstCommitBlock]_block_invoke_2
80 CoreFoundation 0x9ad08 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__
81 CoreFoundation 0x99f9c __CFRunLoopDoBlocks
82 CoreFoundation 0x9472c __CFRunLoopRun
83 CoreFoundation 0x93ed0 CFRunLoopRunSpecific
84 GraphicsServices 0x3570 GSEventRunModal
85 UIKitCore 0xb302d0 -[UIApplication _run]
86 UIKitCore 0xb3584c UIApplicationMain
87 SwiftUI 0x881530 closure #1 in KitRendererCommon(_:)
88 SwiftUI 0x8814c0 runApp<A>(_:)
89 SwiftUI 0x432870 static App.main()
90 Menetrend 0x6cb8 main + 4331154616 (TripDetailsStop.swift:4331154616)
91 libdyld.dylib 0x1140 start
2
Answers
UPDATE: This is fixed on XCode 13.3. Please update to that version. If you don’t want to update, I will leave my answer below.
I also had the same issue with my app where users reported random crashes on iOS 14 and my crash log looked very similar to yours. The main line that helped me find the solution was
__swift_instantiateConcreteTypeFromMangledName(which is on line 6 of your crash report and line 7 on mine).My crash report from simulator:
After some digging, I found that this crash report is due to a bug in the Swift compiler on Xcode 13.2 and 13.2.1.
Forum post: https://developer.apple.com/forums/thread/697070
The main issue here is that using
#if available(with any iOS 15 specific API which is searchable in your case) in a release build breaks the application for iOS 14 and below with SwiftUI. Apple is aware of this bug and there are no official workarounds at the moment.Some user-suggested workarounds from the forum post are:
-Ononeon release buildsI used the workaround provided in the Github link, but if you want to go the
-Ononeroute, I’ve provided instructions below.How to set
-OnoneAllin the top baroptimizationSwift Compiler - Code Generation, set theOptimization Levelto-Ononeunder the release section.Here’s my solution to your problem if you don’t want to set compiler options, you’ll get an Xcode warning, but ignore it for now:
I’d recommend sending a Feedback Assistant report to Apple so they can take a closer look at this bug.
I hope Apple fixes this issue in Xcode 13.3 or another 13.2.x update.
To anyone stumbling upon this:
When using if #available(iOS 14.0, OSX 11.0, *) inside a ViewBuilder, the application crashes when running on the fallback side.
This happens with Xcode versions 13.1 and above. (Currently Xcode 13.2.1)
Tested out with Xcode 13.0 build and crash is gone. We think this is because of compiler optimisation bug in Xcode. For development builds we do not have these crashes.
More here: https://swiftui-lab.com/bug-os-check/