On Thursday, 28 June 2018 at 13:29:58 UTC, vit wrote:
Hello,
Is it possible to create scope wrapper initialized by non
default constructor with scope parameter?
something like this:
struct Wrapper{
int* p;
static Wrapper create(scope return int* p)@safe{
Wrapper w;
w.p = p;
return w;
}
/++ This doesn't work:
this(scope return int* p)@safe scope{
this.p = p;
}+/
}
void main()@safe{
scope int i;
scope Wrapper w1 = Wrapper.create(&i);
scope Wrapper w2 = Wrapper(&i);
}
I'm not sure why create works in this case either. I get the
following when I uncomment the constructor
test.d(12): Error: scope variable p assigned to this with longer
lifetime
Is there a subtle difference I'm missing?
