Workaround for RefCounted with classes would work?

cym13 via Digitalmars-d digitalmars-d at puremagic.com
Sun Jun 19 12:48:23 PDT 2016


On Sunday, 19 June 2016 at 19:39:05 UTC, Bienlein wrote:
> Hello,
>
> RefCounted so far works well with structs, but not with classes 
> (see http://wiki.dlang.org/DIP74). I have now set up a little 
> kludge where a struct takes a class as a template parameter. 
> The struct with the containing object, which is of the type of 
> the struct's template type, is handed over to the RefCounted 
> instance. When RefCounted calls the destructor of the contained 
> struct, the destructor of the object contained by the struct is 
> also called.
>
> I have tried this out and it works fine. It seems to be good 
> enough for my purposes. Question is whether there is some 
> hidden problem with this approach. Anything I need to be aware 
> of? I'm not proficient with D. So I thought it's better to ask 
> ;-).
>
> Regards, Bienlein

The idea of encapsulating a class in a struct is known, good, and 
it's all already in the standard library : have a look at 
std.typecons.scoped.


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