Reflection is likely to be tackled in Swift 5, no? So realistically, this could be on track for Swift 6 or 7. Let's postpone discussion until then.
On Tue, Oct 11, 2016 at 15:59 David Sweeris via swift-evolution < [email protected]> wrote: > > On Oct 11, 2016, at 12:40, Anton Zhilin via swift-evolution < > [email protected]> wrote: > > Hello Ted, > First of all, this topic belongs to reflection, which is specifically > stated to be out of scope of Swift 4 Phase 1. So all considerations are > purely theoretical for now. > That said, I also thought about this problem. The best I could imagine is > something along the following lines: > > var builder = StructBuilder(name: "Person") > builder.addProperty(name: "name", type: String.self) > builder.addProperty(name: "age", type: Int.self) > builder.addComputedProperty(name: "description", getter: { (this: Any) -> > String in ... }) > builder.addComformance(CustomStringConvertible.self)let type: Any.Type = > builder.build() > > Obviously, to interact with such dynamic types and their objects, we need > the whole working reflection system that we don’t have right now. > > I *think* that's only true for non-generic code, and types that aren't > subclasses... I think... > > Anyway, I'm starting to wonder if some code I'm trying to write might be > impossible without either this feature, or some/all of the stuff from the > generics manifesto. So put me down as, in principle, a strong +1 (pending > details of the proposal when it actually gets written for Swift 10). > > - Dave Sweeris > _______________________________________________ > swift-evolution mailing list > [email protected] > https://lists.swift.org/mailman/listinfo/swift-evolution >
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