On 09/23/2012 04:40 PM, Andrei Alexandrescu wrote:
I discussed this with Walter, and we concluded that we could deprecate
the comma operator if it helps tuples. So I started with this:
http://www.prowiki.org/wiki4d/wiki.cgi?LanguageDevel/DIPs/DIP19
Unfortunately, I started much cockier than I ended. The analysis in
there fails to construct a case even half strong that deprecating the
comma operator could significantly help tuples. Well it essentially
concludes that tuples are mostly fine as they are, and attempts to
embellish them syntactically are marred with unexpected problems.
Nevertheless, I sure have missed aspects all over, so contributions are
appreciated.
Thanks,
Andrei
Might some of the ambiguity be reduced by defining special tokens for
dereferencing tuple elements?
(int[]) a = ([1,2,3]);
assert(a[0] == 1);
assert(a[[0]] == [1,2,3]);
I suspect that this would allow us to indulge in the attractive notion
of single-element tuples.
Would the addition of such a token be considered heresy?
