On Mon, 24 Jun 2013 13:53:40 -0400, Walter Bright
<newshou...@digitalmars.com> wrote:
On 6/24/2013 6:27 AM, Michel Fortin wrote:
Finally, there is a couple of features that were added to Objective-C
since then
that should be added to the todo list to keep feature parity. Some of
those, if
implemented right, could benefit the rest of D too. For instance: ARC
(automatic
reference counting) which is becoming a must in Objective-C.
Arc has very serious problems - I don't see how it can be done and be
memory safe without adding extensive pointer annotations. The general
problem is someone taking the address of a member of the reference
counted object. The rc goes to zero, the objects gets deleted, and
there's that dangling pointer to it.
All data members in Objective-C are private. So the object can control
when it gives out this data, and take appropriate actions. AFAIK, ARC
does not worry about internal pointers.
-Steve
