> On Jan 8, 2018, at 11:02 AM, Robert Widmann via swift-evolution > <swift-evolution@swift.org> wrote: > > As you note, integral types and Bool and some enums that fall outside the > scope of the synthesis requirements fit this mold quite nicely. We do not > include them in the proposal partially to keep things simple, partially > because we’d be stepping on Range’s toes, and partially because synthesis for > structs is tricky in the general case. If deemed particularly useful in the > future, these conformance can be added.
For what it's worth, I *might* introduce a follow-up proposal with conformances for Bool and Optional. Their straightforwardness and utility make them very tempting. (The only questions are whether `false` and `nil` should be first or last. But if the default isn't right for your use case, you can always make your own static property instead of using the standard library's.) -- Brent Royal-Gordon Architechies
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