Do I need to create a md file in the swift evolution repository to post my proposal?
> On Mar 19, 2016, at 00:12, Jordan Rose <[email protected]> wrote: > > [+swift-evolution] Sure! It's just a fancy word for doing something like this: > > protocol SelfAppendable { > init() > func +=(other: Self) > } > > func *<Sequence: SelfAppendable >(sequence: Sequence, count: Int) -> Sequence > { > var result = Sequence() > for _ in 0..<count { > result += sequence > } > return result > } > > extension Array: SelfAppendable {} > extension String: SelfAppendable {} > > Both Array and String already have no-argument initializers and a += > function, but they come from the standard library and don't (necessarily) > satisfy any protocols, so they wouldn't be declared "implement". I can think > of a few different ways to deal with this, but mostly I just want to make > sure you (and everyone else) are considering this use case in your proposal. > :-) > > Best, > Jordan > >> On Mar 18, 2016, at 17:04 , Victor Gao <[email protected] >> <mailto:[email protected]>> wrote: >> >> Hi Jordan, >> >> Could you explain more of what retroactive modeling is and how it affects >> the proposal? I am unfamiliar with retroactive modeling. Thanks! >> >> Victor Gao. >
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