I'm testing my app before releasing to testers, and my app (both macOS and iOS) is crashing when I perform one operation, but only in the production build.
I have data that loads from a remote source, and can be periodically updated. There is an option to delete all of that data from the iCloud data store, unless the user has modified a record. Each table has a flag to indicate that (userEdited). Here's the function that is crashing:
func deleteCommonData<T:PersistentModel & SDBuddyModel>(_ type: T.Type) throws {
try modelContext.delete(model: T.self, where: #Predicate<T> { !$0.userEdited })
}
Here's one of the calls that results in a crash:
try modelManager.deleteCommonData(Link.self)
Here's the error from iOS Console:
SwiftData/DataUtilities.swift:85: Fatal error: Couldn't find \Link.<computed 0x0000000104b9d208 (Bool)> on Link with fields [SwiftData.Schema.PropertyMetadata(name: "id", keypath: \Link.<computed 0x0000000104b09b44 (String)>, defaultValue: Optional("54EC6602-CA7C-4EC7-AC06-16E7F2E22DE7"), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "name", keypath: \Link.<computed 0x0000000104b09b84 (String)>, defaultValue: Optional(""), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "url", keypath: \Link.<computed 0x0000000104b09bc4 (String)>, defaultValue: Optional(""), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "desc", keypath: \Link.<computed 0x0000000104b09c04 (String)>, defaultValue: Optional(""), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "userEdited", keypath: \Link.<computed 0x0000000104b09664 (Bool)>, defaultValue: Optional(false), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "modified", keypath: \Link.<computed 0x0000000104b09c44 (Date)>, defaultVal<…>
Here's a fragment of the crash log:
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x000000019373222c
Termination Reason: Namespace SIGNAL, Code 5, Trace/BPT trap: 5
Terminating Process: exc handler [80543]
Thread 0 Crashed:
0 libswiftCore.dylib 0x19373222c _assertionFailure(_:_:file:line:flags:) + 176
1 SwiftData 0x22a222160 0x22a1ad000 + 479584
2 SwiftData 0x22a2709c0 0x22a1ad000 + 801216
3 SwiftData 0x22a221b08 0x22a1ad000 + 477960
4 SwiftData 0x22a27b0ec 0x22a1ad000 + 844012
5 SwiftData 0x22a27b084 0x22a1ad000 + 843908
6 SwiftData 0x22a28182c 0x22a1ad000 + 870444
7 SwiftData 0x22a2809e8 0x22a1ad000 + 866792
8 SwiftData 0x22a285204 0x22a1ad000 + 885252
9 SwiftData 0x22a281c7c 0x22a1ad000 + 871548
10 SwiftData 0x22a27cf6c 0x22a1ad000 + 851820
11 SwiftData 0x22a27cc48 0x22a1ad000 + 851016
12 SwiftData 0x22a27a6b0 0x22a1ad000 + 841392
13 SwiftData 0x22a285b2c 0x22a1ad000 + 887596
14 SwiftData 0x22a285a10 0x22a1ad000 + 887312
15 SwiftData 0x22a285bcc 0x22a1ad000 + 887756
16 SwiftData 0x22a27cf6c 0x22a1ad000 + 851820
17 SwiftData 0x22a27cc48 0x22a1ad000 + 851016
18 SwiftData 0x22a27a6b0 0x22a1ad000 + 841392
19 SwiftData 0x22a27c0d8 0x22a1ad000 + 848088
20 SwiftData 0x22a27a654 0x22a1ad000 + 841300
21 SwiftData 0x22a1be548 0x22a1ad000 + 70984
22 SwiftData 0x22a1cfd64 0x22a1ad000 + 142692
23 SwiftData 0x22a1b9618 0x22a1ad000 + 50712
24 SwiftData 0x22a1d2e8c 0x22a1ad000 + 155276
25 CoreData 0x187fbb568 thunk for @callee_guaranteed () -> (@out A, @error @owned Error) + 28
26 CoreData 0x187fc2300 partial apply for thunk for @callee_guaranteed () -> (@out A, @error @owned Error) + 24
27 CoreData 0x187fc19c4 closure #1 in closure #1 in NSManagedObjectContext._rethrowsHelper_performAndWait<A>(fn:execute:rescue:) + 192
28 CoreData 0x187fbbda8 thunk for @callee_guaranteed @Sendable () -> () + 28
29 CoreData 0x187fbbdd0 thunk for @escaping @callee_guaranteed @Sendable () -> () + 28
30 CoreData 0x187f663fc developerSubmittedBlockToNSManagedObjectContextPerform + 252
31 libdispatch.dylib 0x180336ac4 _dispatch_client_callout + 16
32 libdispatch.dylib 0x18032c940 _dispatch_lane_barrier_sync_invoke_and_complete + 56
33 CoreData 0x187fd7290 -[NSManagedObjectContext performBlockAndWait:] + 364
34 CoreData 0x187fc1fb8 NSManagedObjectContext.performAndWait<A>(_:) + 544
35 SwiftData 0x22a1b877c 0x22a1ad000 + 46972
36 SwiftData 0x22a1be2a8 0x22a1ad000 + 70312
37 SwiftData 0x22a1c0e34 0x22a1ad000 + 81460
38 SwiftData 0x22a23ea94 0x22a1ad000 + 596628
39 SwiftData 0x22a256828 0x22a1ad000 + 694312
40 Sourdough Buddy 0x104e5dc98 specialized ModelManager.deleteCommonData<A>(_:) + 144 (ModelManager.swift:128) [inlined]
41 Sourdough Buddy 0x104e5dc98 closure #1 in SettingsView.clearStarterData.getter + 876 (SettingsView.swift:243)
It works if I do the following instead:
try modelContext.delete(model: Link.self, where: #Predicate { !$0.userEdited })
Why would the func call work in development, but crash in production? And why does doing the more verbose way work instead?
I think this is a bug.
Thanks