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// RUN: %target-typecheck-verify-swift -enable-library-evolution -enable-nonfrozen-enum-exhaustivity-diagnostics
public enum NonExhaustive {
case a, b
}
// Inlineable code is considered "outside" the module and must include a default
// case.
@inlinable
public func testNonExhaustive(_ value: NonExhaustive) {
switch value { // expected-error {{switch must be exhaustive}}
// expected-note@-1 {{add missing case: '.b'}}
// expected-note@-2 {{handle unknown values using "@unknown default"}}
// expected-note@-3 {{add missing cases}}
case .a: break
}
// expected-warning@+2 {{switch covers known cases, but 'NonExhaustive' may have additional unknown values}}
// expected-note@+1 {{handle unknown values using "@unknown default"}} {{+3:3-3=@unknown default:\n<#fatalError()#>\n}}
switch value {
case .a: break
case .b: break
}
switch value {
// expected-error@-1 {{switch must be exhaustive}}
// expected-note@-2 {{add missing case: '.a'}} {{+6:3-3=case .a:\n<#code#>\n}}
// expected-note@-3 {{add missing case: '.b'}} {{+6:3-3=case .b:\n<#code#>\n}}
// expected-note@-4 {{handle unknown values using "@unknown default"}} {{+6:3-3=@unknown default:\n<#fatalError()#>\n}}
// expected-note@-5 {{add missing cases}} {{+6:3-3=case .a:\n<#code#>\ncase .b:\n<#code#>\n@unknown default:\n<#fatalError()#>\n}}
}
switch value {
case .a: break
case .b: break
default: break // no-warning
}
switch value {
case .a: break
case .b: break
@unknown case _: break // no-warning
}
}
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