salutis
(Rudolf Adamkovič)
1
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?
R+
jrose
(Jordan Rose)
2
Sure looks like one to me. In particular, it looks like SR-2729 <https://bugs.swift.org/browse/SR-2729>\.
(I suspect this is because calling the method through the protocol generates a bit of wrapper code that then calls the original method; that wrapper code doesn’t have a location of its own.)
Sorry for the trouble,
Jordan
···
On Jun 2, 2017, at 08:48, Rudolf Adamkovič via swift-users <swift-users@swift.org> wrote:
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?
swift - Mysterious "Will never be executed" warning - Stack Overflow
R+
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