override(T)

[Lionello Lunesu]

Andrei Alexandrescu wrote:
> Lionello Lunesu wrote:
>> Andrei Alexandrescu wrote:
>>> Max Samukha wrote:
>>>> On Thu, 24 Sep 2009 23:55:57 +0800, Lionello Lunesu
>>>> <lio at lunesu.remove.com> wrote:
>>>>
>>>>> Daniel Keep wrote:
>>>>>> Why not go with what C# uses?
>>>>>>
>>>>>> class LotterySimulation : Lottery, Figure {
>>>>>>     override void Lottery.draw();
>>>>>>     override void Figure.draw();
>>>>>> }
>>>>>>
>>>>>> Just seems like a more obvious and natural place for it to me.  D
>>>>>> already uses this to disambiguate symbols in other places.
>>>>> I actually like Andrei's suggestion a lot more! It's far more natural:
>>>>> try reading both versions out loud.
>>>> C# uses familiar syntax to qualify the function name. I think it's
>>>> natural enough.
>>>>
>>>>> Making it look like C# has bad sides too. Explicit overriding in C#
>>>>> always hides the member from the public view. So this "like C#" can
>>>>> easily backfire.
>>>> According to Andrei's suggestion, the implemented functions are
>>>> effectively hidden. You can call them only through the interfaces.
>>>>
>>>>> ++andreis_suggestion;
>>>> I give my vote to C#'s syntax if D can adopt it.
>>>>> L.
>>> Yah. My take is that if we depart from familiarity, we ought to have a
>>> pretty darn good reason. I didn't know C# has the feature. Since it does
>>> with a reasonable notation, I'd say let's go for it.
>>>
>>> Andrei
>>
>> Be careful with that reasoning. What about attributes? Properties? What
>> about C# "var" vs. D "auto"? C# "using" vs. D "import"? In fact, what
>> about the standard library?
> 
> I didn't say we need to do what C# does in particular. "auto" and
> "import" have precedents in other languages. A standard library is too
> large to copy wholesale.
> 
>> For myself, when learning a new programming language 10% of my time is
>> spent on learning the language syntax and 90% on learning the standard
>> library. Learning override(A) B vs. override A.B is NOP.
> 
> Then I take it you wouldn't mind override A.B :o).

Do I mind?! I've suggested it before myself!

http://www.digitalmars.com/d/archives/digitalmars/D/learn/3069.html#N3069

L.