Sealed classes - would you want them in D? (v2)

[Uknown]

On Saturday, 19 May 2018 at 07:57:39 UTC, KingJoffrey wrote:
> On Saturday, 19 May 2018 at 04:01:18 UTC, KingJoffrey wrote:
>>[...]
> ----------------
> module test;
>
> @safeinterface class Dog
> {
>     private string noiseType = "woof";
>
>     public string makeNoise()
>     {
>         return this.noiseType;
>     }
> }
>
> void main()
> {
>     import std.stdio;
>
>     auto dog = new Dog;
>     dog.noiseType = "meow"; // no way jose - requires use of 
> the safe interface!
>     writeln(dog.makeNoise()); // phew! cause dogs can only bark.
> }
> -------------------

I ported your example to Java. Surprisingly, it compiled and 
executed just fine:

--- test.java
class test
{
	static class Dog
	{
		private String noiseType = "woof";

		public String makeNoise()
		{
			return this.noiseType;
		}
	}

	public static void main(String[] args)
	{
		Dog dog = new Dog();
		dog.noiseType = "meow"; // no way jose - requires use of the 
safe interface!
		System.out.println(dog.makeNoise()); // phew! cause dogs meow.
	}
}
---