import std.stdio;
import automem;
import std.experimental.allocator.mallocator : Mallocator;

interface IGetInt
{
    @nogc int GetInt();
}

class Foo : IGetInt
{
    @nogc int GetInt()
    {
        return 42;
    }
}

@nogc void main()
{
    auto foo = Unique!(Foo, Mallocator).construct;

    printf("Value is %d!\n", foo.GetInt());

//     Unique!(IGetInt, Mallocator) ifoo = Unique!(Foo, Mallocator).construct;
//     printf("Value is %d!\n", ifoo.GetInt());
}

How to cast from a class to an interface in such situation? Is it possible?

And one more question: Where can i find actual status(or plans) of @nogc support for Phobos and language constructs?

On Saturday, 16 May 2020 at 17:45:56 UTC, Konstantin wrote:
> import std.stdio;
> import automem;
> import std.experimental.allocator.mallocator : Mallocator;
>
> interface IGetInt
> {
>     @nogc int GetInt();
> }
>
> class Foo : IGetInt
> {
>     @nogc int GetInt()
>     {
>         return 42;
>     }
> }
>
> @nogc void main()
> {
>     auto foo = Unique!(Foo, Mallocator).construct;
>
>     printf("Value is %d!\n", foo.GetInt());
>
> //     Unique!(IGetInt, Mallocator) ifoo = Unique!(Foo, Mallocator).construct;
> //     printf("Value is %d!\n", ifoo.GetInt());
> }
>
> How to cast from a class to an interface in such situation? Is it possible?
>
> And one more question: Where can i find actual status(or plans) of @nogc support for Phobos and language constructs?

I'm actually also very curious about this issue, since I come from c++ where this is possible, and it is a very common functionality for example for dependency inversion and dependency injection or mocking. It would be very nice to have this working.