> On Oct 15, 2017, at 5:55 AM, Mike Kluev via swift-evolution > <swift-evolution@swift.org> wrote: > > On 15 October 2017 at 13:35, Geordie Jay <geo...@gmail.com > <mailto:geo...@gmail.com>> wrote: > Also we're not talking about whether the Bool itself is discardable. For > example, it makes no sense to write: > > let something: discardable Bool = true > > you can't write this either: > > let something: inout Bool = true > > that doesn't mean "inout" should be "@inputOutput" before the parameter name > in function signature. > > my litmus test is: "if we did it now in swift 0.0 what would we do". > discardable before type passes this test, @discardableResult before function > doesn't. >
FWIW, the official litmus test for Swift 5 is explained here: https://github.com/apple/swift-evolution/ <https://github.com/apple/swift-evolution/> -Chris
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