On Saturday, 6 February 2016 at 11:33:05 UTC, rsw0x wrote:
On Saturday, 6 February 2016 at 11:15:06 UTC, Ola Fosheim Grøstad wrote: reference counting is incredibly slow, DIP74 attempts to partially amend that in D as it can't be done any other way besides compiler help. IIRC, it essentially just allows RC inc/dec to be elided where possible
_Automatic_ reference counting can be slow. Manual reference counting can be very efficient (but takes programmer skill).
The better solution is to adopt borrow-semantics and only use reference counting for ownership. Just like you ought to use unique_ptr and shared_ptr in C++.
Of course, Swift does not aim for very high performance, but for convenient application/gui development. And frankly JavaScript is fast enough for that kind of programming.
