DIP74: Reference Counted Class Objects

Volodymyr via Digitalmars-d digitalmars-d at puremagic.com
Tue Mar 3 00:53:46 PST 2015

On Thursday, 26 February 2015 at 21:50:56 UTC, Andrei 
Alexandrescu wrote:
> http://wiki.dlang.org/DIP74 got to reviewable form. Please 
> destroy and discuss.
> Thanks,
> Andrei

With opAddRef/opRelease class does respondible for its 
dealocation and its own payload so breaks SOLID's single 
responsibility principle. As for me better design will be to do 
it closer to C++'s shared_ptr.

// maybe with @arc
struct RefCounter(T)
void opAddRef();
void opRelease();
ref T obj;
ref size_t count;

RefCounter!Widged myRefToWidget;

RefCounter with default ctor/dtor. opAddRef and opRelease is for 
compiler optimtimisation and elimination of redunadant ref 
counter increment/decrement.

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