dynamicがPure Swiftのメソッド・プロパティにも付けられるようになってて、_@dynamicReplacememtで差し替えられる機構がホットリロードに使われてるようで面白い！ https://forums.swift.org/t/how-does-the-hot-reloading-work-in-xcode11/25312 https://forums.swift.org/t/dynamic-method-replacement/16619

How does the hot-reloading work in XCode11?

I'm interested in the hot-reloading demonstrated for SwiftUI. How is this implemented? Could something similar be achieved for a desktop application using the swift toolchain independently of XCode?

Dynamic method replacement

Pitch: Dynamic method replacement Introduction Objective-C allows swapping method implementations "swizzling" e.g. via the method_setImplemenation API. We can make use of this facility in Swift by marking methods with @objc dynamic. class Thing : NSObject { @objc dynamic ...

11:51 PM

PRを検索 https://github.com/apple/swift/pulls?utf8=%E2%9C%93&q=is%3Apr+dynamic+replacement

apple/swift

The Swift Programming Language. Contribute to apple/swift development by creating an account on GitHub.

11:53 PM

5.0 runtimeへのバックデプロイもやろうとしてる https://github.com/apple/swift/pull/25340

stdlib: Add backward deployment versions for the dynamic-replaceme...

This will allow backward deployment to a swift 5.0 runtime. rdar://problem/51601233