> On Mar 9, 2017, at 5:59 AM, Matthew Johnson via swift-evolution > <[email protected]> wrote: > > I have argued repeatedly that enum cases play two distinct roles (and > sometimes a third in the future). We need to embrace all of these roles. > This proposal primarily normalizes the role of case-as-factory-method. > > Pattern matching is a second role enum cases play. We already have syntax > for patterns that match based on type. I see no reason we should introduce > new matching syntax to disambiguate overloaded cases. The existing patterns > work well for this purpose. Matching should be considered a role played by > enum cases that is completely orthogonal to their role as a factory method.
Matching and construction are closely related and designed to mimic each other. They aren't completely orthogonal. -Joe
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