On Saturday, 21 August 2021 at 23:14:14 UTC, Alexey wrote:
I want `this` inside of C1::coolFunc to return C2 if called as
C2::coolFunc
so executing `cast(C2) this !is null` inside of C1::coolFunc
would work
If this would work, I'd farther used this like so
```D
interface Int
{
void coolFunc();
}
class C1
{
void coolFunc()
{
{
auto obj = (cast(C1)(cast(Int) this));
if (obj !is null)
{
do_one_thing();
}
}
{
auto obj = (cast(C2)(cast(Int) this));
if (obj !is null)
{
do_another_thing();
}
}
{
auto obj = (cast(C3)(cast(Int) this));
if (obj !is null)
{
do_something_else();
}
}
return;
}
}
class C2 : C1, Int
{
}
class C3 : C1, Int
{
}
class C4 : C1, Int
{
}
void main()
{
auto c = new C2;
c.coolFunc();
}
```
