Inspecting if dependency on Observable leaks in SwiftUI

DoesThisSwiftUILeak.md

Contents of MyApp.swift

import SwiftUI

@main
struct AnimateOnObservedPropertyChangeApp: App {
    @State var trigger = false

    var body: some Scene {
        WindowGroup {
            ZStack {
                ContentView()

                Button("Re-init Content View") {
                    self.trigger.toggle()
                }.onChange(of: self.trigger) { _, _ in }
            }
        }
    }
}

Contents of ContentView.swift

import SwiftUI

@Observable
final class DoesThisLeak {
    init() {
        print("In initializer of DoesThisLeak")
    }

    deinit {
        print("In deinitializer of DoesThisLeak")
    }
}

struct ContentView: View {
    init() {
        print("In the initializer of ContentView")
    }

    let myData = DoesThisLeak()

    var body: some View {
        Color.gray
    }
}

Output at runtime when tapping the 're-init' button:

:: startup
In initializer of DoesThisLeak
In the initializer of ContentView

:: tap on 're-init'
In initializer of DoesThisLeak
In the initializer of ContentView
In deinitializer of DoesThisLeak

:: tap on 're-init'
In initializer of DoesThisLeak
In the initializer of ContentView
In deinitializer of DoesThisLeak

That is, DoesThisLeak is not leaking.