Create class on stack

[Moritz Maxeiner via Digitalmars-d-learn]

On Saturday, 5 August 2017 at 17:08:32 UTC, Johnson Jones wrote:
> using gtk, it has a type called value. One has to use it to get 
> the value of stuff but it is a class. Once it is used, one 
> doesn't need it.
>
> Ideally I'd like to treat it as a struct since I'm using it in 
> a delegate I would like to minimize unnecessary allocations. Is 
> there any way to get D to allocate a class on the stack like a 
> local struct?

The easy way is through std.typecons.scoped [1].
Here be dragons, though, because classes are reference types.

[1] https://dlang.org/phobos/std_typecons.html#.scoped