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Require TestContentContext conform to ConvertibleFromBytes. #2000

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Merged
grynspan merged 1 commit into from
Oct 31, 2026
Merged

Require TestContentContext conform to ConvertibleFromBytes. #2000

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4 changes: 2 additions & 2 deletions Documentation/ABI/TestContent.md
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Expand Up @@ -252,14 +252,14 @@ a custom `hint` type for your accessor functions, you can set
extension FoodTruckDiagnostic: DiscoverableAsTestContent {
static var testContentKind: TestContentKind { /* Your `kind` value here. */ }

typealias TestContentContext = UnsafePointer<FoodTruck.Name>
typealias TestContentContext = UnsafePointer<FoodTruck.Name>?
typealias TestContentAccessorHint = String
}
```

If you customize `TestContentContext`, be aware that the type you specify must
have the same stride as `UInt` and must have an alignment less than or equal to
that of `UInt`.
that of `UInt`. The type must also conform to [`ConvertibleFromBytes`](https://developer.apple.com/documentation/swift/convertiblefrombytes).

When you are done configuring your type's protocol conformance, you can then
enumerate all test content records matching it as instances of
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2 changes: 1 addition & 1 deletion Sources/_TestDiscovery/DiscoverableAsTestContent.swift
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Expand Up @@ -31,7 +31,7 @@ public protocol DiscoverableAsTestContent: Sendable {
/// type with the same stride and alignment as `UInt`. Using a type with
/// different stride or alignment will result in a failure when trying to
/// discover test content records associated with this type.
associatedtype TestContentContext: BitwiseCopyable = UInt
associatedtype TestContentContext: ConvertibleFromBytes = UInt

/// A type of "hint" passed to ``allTestContentRecords()`` to help the testing
/// library find the correct result.
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