On Monday, 10 December 2012 at 21:24:09 UTC, Andrei Alexandrescu
wrote:
On 12/10/12 4:20 PM, Jacob Carlborg wrote:
On 2012-12-10 21:10, Andrei Alexandrescu wrote:
You want to create a new window with the same parent. At the
top level
there's one desktop window, and probably having two would be
odd.
There are many applications that support several top level
windows.
These are mostly document based.
Are we really up for continuing to debate this?
Andrei
I'm not up for this debate about Windows - just the original
about gdup :-)
It is not an attempt to automatically determine reference or
value semantics, even though your ideas on @owned and @foreign
make sense and are a fine use of attributes. It is about a single
phobos/library [g]dup function for structs that provides
recursive deep copy without the need for struct designer to do
anything extra. I think the benefits pointed out in the original
make sense and are worth pursuing.
I have a feeling Walter would disagree - simply because
apparently he is not a fan of postblits, which serve similar
purpose. Further, from another thread he is not a fan of deep
copy semantics in general, as he said there is almost never a
need (which I would love to hear more commentary on). Yet TDPL
shows the a prime example for the need in 7.1.3 (Widget). Plus we
get questions all the time on how to cross from the
const/immutable world to the mutable - which gdup provides.
Thanks
Dan
