https://forums.swift.org/t/pitch-observation-revised/63757/1

Observation Proposal: SE-NNNN Authors: Philippe Hausler, Nate Cook Review Manager: TBD Status: Awaiting implementation Changes Pitch 1: Initial pitch Pitch 2: Previously Observation registered observers directly to Observable, the new approach registers observers to an Observable via a ObservationTransactionModel. These models control th...

9:31 AM

Observationも更新されました computed propertyも購読できるようにするために、

9:31 AM

extension MyObject { var someComputedProperty: Int { somePrivateProperty + someOtherProperty } nonisolated static func dependencies( of keyPath: PartialKeyPath<Self> ) -> TrackedProperties<Self> { switch keyPath { case \.someComputedProperty: return [\.somePrivateProperty, \.someOtherProperty] default: return [keyPath] } } }

9:32 AM

ユーザーがcomputed propertyが依存するプロパティを定義できるようですこれならたしかに動きそう