On Tuesday, 19 February 2019 at 22:04:58 UTC, Victor Porton wrote:
What is the right way to store in a structure a class (not an
instance) derived from a given interface(s)?
What are you trying to do with the "class"? If you just want a
static "reference" to it you can use an `alias`:
class A {}
struct B {
alias C = A;
}
new B.C();
If you want dynamic information on the type you can use TypeInfo:
class A {}
struct B {
TypeInfo i;
}
B b;
b.i = typeid(A);
b.i.factory();
Or more simply if you just want to construct instances, just use
a delegate:
interface I {}
class A : I {}
struct B {
I delegate() factory;
}
B b;
b.factory = () => new A();
b.factory();
You *can't* do something like the following because types need to
be validated at compile time:
struct A {
Class cls;
}
A a;
a.cls b;
b.run();
