[swift-users] Mysterious “Will never be executed” warning

[Rudolf Adamkovič]

I'm trying to understand "Will never be executed" warning here:

protocol FatalErrorReporterInterface {

    func fail(_ message: String) -> Never

}

final class FatalErrorReporter: FatalErrorReporterInterface {

    // This line emits "Will never be executed" warning
    func fail(_ message: String) -> Never {
        fatalError(message)
    }

}
Yet another compiler bug?

https://stackoverflow.com/questions/44332850/mysterious-will-never-be-executed-warning

R+
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