Please see https://github.com/PureSwift/SwiftFoundation/blob/develop/Sources/SwiftFoundation/Null.swift <https://github.com/PureSwift/SwiftFoundation/blob/develop/Sources/SwiftFoundation/Null.swift>
https://github.com/PureSwift/SwiftFoundation/blob/develop/Sources/SwiftFoundation/JSON.swift <https://github.com/PureSwift/SwiftFoundation/blob/develop/Sources/SwiftFoundation/JSON.swift> Specifically, line 77 in JSON.swift Coleman, > On Jun 23, 2016, at 12:54 AM, David Waite <da...@alkaline-solutions.com> > wrote: > > >> On Jun 22, 2016, at 10:14 PM, Alsey Miller via swift-evolution >> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >> >> Add a struct Null to the Swift 3.0 Foundation value types. As a struct, Null >> is more performant (no ARC or memory allocation) than NSNull, and will be >> needed for Swift JSON decoders and libraries that want to use struct value >> types, and be free from classes for their model layer. >> > I assume you are thinking of [String:SomeRootJSONProtocol] as the Object > type? However, once you reference the data as a protocol however, it will be > promoted and stored as a reference type. > > I’ve preferred a similar approach to the following for JSON (although this > isn’t my code): > https://gist.github.com/dorentus/1e2132edfb174028bf11#file-json-swift-L30-L38 > <https://gist.github.com/dorentus/1e2132edfb174028bf11#file-json-swift-L30-L38> > > -DW
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