StateObject memory leak

gistfile1.swift

import SwiftUI

struct ContentView: View {
    @State private var showSheet1 = false
    @State private var showSheet2 = false
    @State private var showSheet3 = false

    var body: some View {
        VStack {
            Button("State object created directly") {
                showSheet1 = true
            }
            .sheet(isPresented: $showSheet1) {
                StateObjectCreatedDirectly()
            }

            Button("State object created inline") {
                showSheet2 = true
            }
            .sheet(isPresented: $showSheet2) {
                StateObjectCreatedInline()
            }

            Button("State object created created before") {
                showSheet3 = true
            }
            .sheet(isPresented: $showSheet3) {
                StateObjectCreatedBefore()
            }
        }
    }
}

struct StateObjectCreatedDirectly: View {
    @StateObject private var myClass = MyClass()

    var body: some View {
        Text("Sheet")
    }
}

struct StateObjectCreatedInline: View {
    @StateObject private var myClass: MyClass

    init() {
        self._myClass = StateObject(wrappedValue: MyClass())
    }

    var body: some View {
        Text("Sheet")
    }
}

struct StateObjectCreatedBefore: View {
    @StateObject private var myClass: MyClass

    init() {
        let myClass = MyClass()
        self._myClass = StateObject(wrappedValue: myClass)
    }

    var body: some View {
        Text("Sheet")
    }
}

final class MyClass: ObservableObject {
    init() {
        print("Initializing     \(ObjectIdentifier(self))")
    }

    deinit {
        print("Deinitializing   \(ObjectIdentifier(self))")
    }
}

#Preview {
    ContentView()
}