On Wednesday, 2 August 2017 at 12:49:12 UTC, Steven Schveighoffer
wrote:
On 8/2/17 8:07 AM, Timoses wrote:
Hey,
wondering whether it's possible to access the derived type
from a function template in the base class or interface.
this T does not seem to be working, I guess because it's a
static function and this does not exists?!
Yep.
Any way I could accomplish this?
Move test outside the interface:
void test(C)(C c) if(is(C : I))
{
writeln(C.type.stringof);
}
Though, at that point, you don't need I. I'm assuming you have
a more complex real-world example.
-Steve
Thanks for the reply!
Not sure I understand correctly, though.
interface I {}
class A : I {}
void test(T)(T t) if(is(T: I))
{ writeln(T.type.stringof); }
void main()
{
A.test;
}
throws:
Error: no property 'test' for type 'app.A'
which it of course does... test(A) makes no sense either.
I need to call it statically and want to know the derived class
type in the base class (or interface) function template.
Is there a trick in your answer? : P
