With a freshly built toolchain from ToT swift, building ToT
swift-corelibs-foundation I am getting some very strange failures in the unit
tests:
Test Suite 'TestNSKeyedArchiver' started at 13:15:01.843
Test Case 'TestNSKeyedArchiver.test_archive_array' started at 13:15:01.843
assertion failed: file
/Volumes/Users/phausler/Documents/Public/swift/swift-corelibs-foundation/Foundation/NSKeyedArchiver.swift,
line 23
2016-08-04 13:15:07.650689 TestFoundation[47395:4939580] assertion failed: file
/Volumes/Users/phausler/Documents/Public/swift/swift-corelibs-foundation/Foundation/NSKeyedArchiver.swift,
line 23
Current stack trace:
this is being caused by the line:
let classReference = innerDecodingContext.dict["$class"] as? CFKeyedArchiverUID
CFKeyedArchiverUID being AnyObject
and
class DecodingContext {
fileprivate var dict : Dictionary<String, Any>
…
}
It claims a conditional cast from Any? to AnyObject always succeeds but it is
giving me an unexpected type later on
Changing to:
let classReference = innerDecodingContext.dict["$class"] as CFKeyedArchiverUID?
Then makes the process no longer crash, however it then fails in an even more
strange way:
guard let root = try unarchiver.decodeTopLevelObjectOfClasses(classes,
forKey: NSKeyedArchiveRootObjectKey) as? NSObject else {
by expanding that out the decoded object is a NSArray (expected), but that
cannot be represented as an NSObject?! This isn’t Swift, this is madness!
Perhaps there is some other failure that I am not seeing underpinning this?
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