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Probe golden 34_auto_harvest_smoke is stale: CharacterSet.isDisjoint(with: inverted) now prints true on macOS #22
Description
probeMatchesStockSwift("34_auto_harvest_smoke") fails on current macOS (Darwin 27, Swift 6.4 / swiftlang-6.4.0.34.1), on untouched main (d298d01):
probe 34_auto_harvest_smoke diverged from stock Swift
normalizedOut == normalizedExpected → false
The only differing line is the 14th, print(allLetters.isDisjoint(with: nonLetters)) where nonLetters = allLetters.inverted:
| value | |
|---|---|
golden Examples/llm_probes/expected/34_auto_harvest_smoke.out |
false |
stock swift Examples/llm_probes/34_auto_harvest_smoke.swift on this machine |
true |
| SwiftScript interpreter | true |
So the interpreter agrees with stock Swift here; it's the checked-in golden that was captured against an older Foundation where CharacterSet.isDisjoint(with:) returned false for a set and its inverse (likely a bitmap-vs-inverted-flag quirk that Apple fixed). The suite is documented as Darwin-only and goldens come from Tools/regen-probe-expectations.sh, which makes it OS-version dependent.
Options:
- Regenerate the golden on the current OS and accept that CI's
macos-15runner may disagree until it moves to a newer image, or - Drop that one line from the probe (the inverse/disjoint pair is the only OS-sensitive assertion in the file), or
- Make the harness tolerant of a per-OS golden.
Found while moving ShellKit to a version requirement in #21; unrelated to that change.
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