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Yuta Saito
@swift-5.5.3 -Xfrontend -parse-as-library import Foundation @main struct Entrypoint { static func main() async throws { print("in main():", Thread.current, Thread.isMainThread) await MainActor.run { print("in MainActor.run:", Thread.current, Thread.isMainThread) } } }
in main(): <Thread: 0x000000000ab51790> true in MainActor.run: <Thread: 0x000000000ab51790> true