aarti at interia.pl
Tue Dec 23 12:02:11 PST 2008
Andrei Alexandrescu pisze:
> We're trying to make that work. D is due for an operator overhaul.
Is there any chance that we get possibility to overload "raw operators",
like in C++? I think that they may coexist with currently defined
operator overloads with simple semantic rules, which will not allow them
to work together at the same time.
I know that they may obfuscate code, but they are extremely useful when
defining in D domain specific languages. For example I try to make SQL
expressions work as D expressions:
string query = "SELECT * FROM a WHERE id=5;";
Query query = Select(a).Where(Equals(id, 5));
* "id" is D object in second expression
This translation is quite awful and unreadable. It would be so much
better to get:
Query query = Select(a).Where(id == 5);
With implicit casts there will be perfect environment, to define DSL-s
*in* D and *not* using unsafe strings.
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