Updating an app to use strict concurrency is not compiling in Swift 6 with strict concurrency enabled. I am getting the following error in Xcode Version 16.0 (16A242d).
private func queryHealthKit() async throws -> (
[HKSample]?, [HKDeletedObject]?, HKQueryAnchor?
) {
try await withCheckedThrowingContinuation { continuation in
// Create a predicate that returns only samples created within the last 24 hours.
let endDate = Date()
let startDate = endDate.addingTimeInterval(-24.0 * 60.0 * 60.0)
let datePredicate = HKQuery.predicateForSamples(
withStart: startDate, end: endDate, options: [.strictStartDate, .strictEndDate])
// Create the query.
let query = HKAnchoredObjectQuery(
type: caffeineType,
predicate: datePredicate,
anchor: anchor,
limit: HKObjectQueryNoLimit
) { (_, samples, deletedSamples, newAnchor, error) in
// When the query ends, check for errors.
if let error {
continuation.resume(throwing: error)
} else {
continuation.resume(returning: (samples, deletedSamples, newAnchor))
}
}
store.execute(query)
}
}
The error is on
** continuation.resume(returning: (samples, deletedSamples, newAnchor))
**
and the error is
Task-isolated value of type '([HKSample]?, [HKDeletedObject]?, HKQueryAnchor?)' passed as a strongly transferred parameter; later accesses could race. How to solve this error?
venkatchm89
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