On Saturday, 13 February 2021 at 07:08:58 UTC, mw wrote:
On Saturday, 13 February 2021 at 05:52:34 UTC, Jack wrote:
I have a base class A, where I make specific operator
depending on the derived class type. Currently I'm using
something like this:
c is a class derived from A
bool shouldDoX = (cast(X)c) !is null || (cast(Y)c) !is null ||
(cast(K)c) !is null ... ;
as the number of cast(C) !is null is growing, I'm afraid of
this being a inelegant or even poor performance approach. How
would you do that?
Isn't that what virtual function is designed for?
```
class Base {
bool shouldDoX() {return false;}
}
class Derived: Base {
bool shouldDoX() {return true;}
}
class Derived2: Derived {
bool shouldDoX() {return false;}
}
...
```
sounds a better approach, I ended up using this. Lots of cast(X),
cast(Y), etc is probably slow and gets messy with time.
