> [...] > > I don’t agree that the Collection should be Int-indexed. Source-order is not > a very strong guarantee IMO, and it wouldn’t be good if people started > writing things like "MyEnum.allValues[3]” to reference a specific case.
So how do you propose to use allValues with a table view? That's one of the motivating examples, and probably the most common use case. Certainly the most common I've seen. > > If you know the specific case you are looking for, just write it directly. If > you found an interesting case while iterating allValues, remember its > (opaque) index and come back to it later. > > I’m not a fan of Int-indexes in general. It’s practical to allow it for > Array, but in general, for generic Collections, I think it implies an awful > lot of knowledge about the Collection’s contents. > > - Karl > _______________________________________________ > swift-evolution mailing list > swift-evolution@swift.org > https://lists.swift.org/mailman/listinfo/swift-evolution
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