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Don't use _getSuperclass() from the Swift runtime. #1237

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Jul 24, 2025
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Don't use _getSuperclass() from the Swift runtime. #1237

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9 changes: 3 additions & 6 deletions Sources/Testing/Parameterization/TypeInfo.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -360,13 +360,10 @@ extension TypeInfo {
/// - Returns: Whether `subclass` is a subclass of, or is equal to,
/// `superclass`.
func isClass(_ subclass: AnyClass, subclassOf superclass: AnyClass) -> Bool {
if subclass == superclass {
true
} else if let subclassImmediateSuperclass = _getSuperclass(subclass) {
isClass(subclassImmediateSuperclass, subclassOf: superclass)
} else {
false
func open<T, U>(_: T.Type, _: U.Type) -> Bool where T: AnyObject, U: AnyObject {
T.self is U.Type
}
return open(subclass, superclass)
}

// MARK: - CustomStringConvertible, CustomDebugStringConvertible, CustomTestStringConvertible
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