> On Jan 11, 2017, at 12:32 PM, Erica Sadun via swift-evolution > <swift-evolution@swift.org> wrote: > > >> On Jan 11, 2017, at 12:26 AM, Chris Lattner via swift-evolution >> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >> >> On Jan 10, 2017, at 11:40 AM, Douglas Gregor via swift-evolution >> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >>>> On Jan 10, 2017, at 10:34 AM, Michael Ilseman via swift-evolution >>>> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >>>> >>>> [Forgot to CC swift-evolution the first time] >>>> >>>> When this came up last, it was seen as more so a bug in the current >>>> implementation, rather than an explicit choice. There's no need for a >>>> proposal, just a JIRA: >>>> https://bugs.swift.org/browse/SR-115?jql=text%20~%20%22Generic%20subscript%22 >>>> >>>> <https://bugs.swift.org/browse/SR-115?jql=text%20~%20%22Generic%20subscript%22> >>>> >>> >>> It’s a nontrivial new user-facing feature with new syntax in the language, >>> so it’ll need a proposal. ‘twould be good for the proposal to link to the >>> JIRA ticket. >>> >>> I’ve only heard positive reactions toward this feature, and it’s something >>> that the standard library could make good use of. >> >> +1, this would be clearly great to happen. >> >> -Chris > > > I apologize for adding to this topic rather than starting a new one, but I > figure people interested in subscripts would be more likely to see my > question: > > Is there a good reason subscripts cannot throw? Right now you can create a > [safe: index] subscript to return an optional but you can't create one that > returns an unwrapped value or throws.
These topics do tend to come up together they are the two unnecessary limitations subscripts have right now. I hope both make it into Swift 4. I’m sure we’ll see a proposal after phase 2 opens up. > > Thanks, -- E > > _______________________________________________ > swift-evolution mailing list > swift-evolution@swift.org > https://lists.swift.org/mailman/listinfo/swift-evolution
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