On Thursday, 7 November 2013 at 01:09:45 UTC, Chris Cain wrote:
On Thursday, 7 November 2013 at 00:07:25 UTC, ChrisG wrote:
My question is: what's the status of D's struct Unique? It
looks like struct RefCounted is current, but I can't tell with
Unique. There's several comments in the source that say:
doesn't work yet. It seems like some of it could be made to
work as intended. For example, the commented out code to
disallow construction via an lvalue:
I'm pretty sure things like Unique have been neglected for
awhile. Probably for a decent reason, but a lot of language
features have been landing that could help polish it up a bit
more.
Next, I'd like to be able to use a custom deleter. For
example, a naive implementation I could write would be
something like:
... snip ...
So, I could do things like:
Unique2!(int, "free") i1 = cast(int*)malloc(int.sizeof); //
lame example
A real implementation would allow more interesting deleters in
the form of delegates, but I'm already stretching my D skillz.
I think Unique will probably be getting something along those
lines reasonably shortly, but std.allocator will have to be
fully completed first.
http://forum.dlang.org/thread/l4btsk$5u8$1...@digitalmars.com
Once that's done we'll see some memory management schemes like
what you're suggesting be implemented. But it's probably not a
good idea to add that stuff before we figure out a good way to
use it with the new std.allocator effectively.
Ok, thanks. That does make some sense to me. I read some of the
std.allocator thread. I'll take a look at that code and see what
I can make of it.
