SwiftUI use opaque type example

SwiftUI_use_opaque_type_example.swift

// Note: The type of body is: ModifiedContent<VStack<TupleView<(Text, Button<Text>, Text)>>, _PaddingLayout>
struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, world! (1)")
            Button("print my type") {
                print(type(of: self.body))
            }
            Text("Hello, world! (2)")
        }
        .padding()
    }
}

// Note: The type of body is: ModifiedContent<VStack<TupleView<(Image, Button<Text>, Image)>>, _PaddingLayout>
struct ContentView2: View {
    var body: some View {
        VStack {
            Image(systemName: "globe")
            Button("print my type") {
                print(type(of: self.body))
            }
            Image(systemName: "globe")
        }
        .padding()
    }
}