D seems interesting, but...

bearophile bearophileHUGS at lycos.com
Mon Oct 15 15:45:27 PDT 2012

Andrei Alexandrescu:

> I don't think that compares apples to apples, as the entire 
> feature combination present into either language must be taken 
> into account.

I agree that features must take in account the specific ecology 
of the other features of a language. And I agree the problem I am 
discussing about refers to the idea of "main module" that is 
currently ill defined in D (but I think it should be defined).

But the point is, I am desiring to solve this problem since years 
in D, so far I have written tons of lines of D1/D2 code, and I 
have not found a good solution.

> I think for someone coming from Python, something akin to
> if __name__ == "__main__":
>     main()
> makes good sense. In my opinion that's not a design we should 
> copy.

I have suggested that solution just because I know it, and 
because it's probably easy to implement (once the idea of main 
module is defined). But I agree there are surely better designs 
to solve this problem. But some solution is desired, that 
Python-style solution is better than the current D situation :-) 
Currently I usually solve that problem wrapping the main in 
"static if (modulename_main)" and I compile with that version.


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