[swift-evolution] Could enums have their rawValue type inferred?

Brent Royal-Gordon brent at architechies.com
Tue May 17 15:05:55 CDT 2016

> On the other hand: What's the point of "raw-value enums"? Are they just a bridge-technogy, or is it ok to use them to store constants?

I think of RawRepresentable (the protocol behind rawValue) as a serialization mechanism, basically the Swift standard library's answer to NSCoding. Thus, rawValue is a way to serialize your enum into an Int or String you know how to read and write from disk. More broadly, I often apply RawRepresentable to structs and have them return plist- or JSON-compatible dictionaries. 

Brent Royal-Gordon

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