Blog post: What D got wrong

Atila Neves atila.neves at gmail.com
Wed Dec 12 14:48:23 UTC 2018


On Tuesday, 11 December 2018 at 14:00:10 UTC, dayllenger wrote:
> On Tuesday, 11 December 2018 at 13:42:03 UTC, Guillaume Piolat 
> wrote:
>> One could say getters and particularly setters don't really 
>> deserve a nicer way to write them. It's a code stink, it 
>> deserve a long ugly name.  (10 years ago I would be in the 
>> other camp)
>
> Can you please explain it in more detail? I never read such 
> about getters and setters.

Tell, don't ask: https://martinfowler.com/bliki/TellDontAsk.html

Getters and setters break encapsulation - the client knows way 
too much about your struct/class. Whatever you were going to do 
with the data you got from the object, move it into a member 
function of that object's type.

Setters are like that as well, but worse since mutable state is 
the root of all evil. Personally, I cringe whenever I have to use 
`auto` instead of `const` for a variable declaration.



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