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

[KingJoffrey]

On Thursday, 17 May 2018 at 06:03:19 UTC, arturg wrote:
>
> you could declare the public api of your class inside an actual 
> interface then use it instead of the class, that wont give you 
> access to the private members of the class.

you mean like this?

--------------------
module test;

interface Animal { string makeNoise(); }

class Dog : Animal
{
     private string noiseType = "woof";

     override string makeNoise()
     {
         return this.noiseType;
     }
}

void main()
{
     import std.stdio;

     auto dog = new Dog;
     dog.noiseType = "meow"; // grr!
     writeln(dog.makeNoise()); // wtf! Thanks to D, my dog can now 
meow!
}

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