C# generic "where constraint" with "any generic type" definition?
Let me give example:
-
I have some generic class/interface definition:
interface IGenericCar< T > {...}
-
I have another class/interface that I want to relate with class above, for example:
interface IGarrage< TCar > : where TCar: IGenericCar< (**any type here**) > {...}
Basically, I want my generic IGarrage to be dependent on IGenericCar
, regardless if it's IGenericCar<int>
or IGenericCar<System.Color>
, because I don't have any dependency to that type.
There are typically 2 ways to achieve this.
Option1: Add another parameter to IGarrage
representing the T
which should be passed into the IGenericCar<T>
constraint:
interface IGarrage<TCar,TOther> where TCar : IGenericCar<TOther> { ... }
Option2: Define a base interface for IGenericCar<T>
which is not generic and constrain against that interface
interface IGenericCar { ... }
interface IGenericCar<T> : IGenericCar { ... }
interface IGarrage<TCar> where TCar : IGenericCar { ... }
Would it make any sense to do something like:
interface IGenericCar< T > {...}
interface IGarrage< TCar, TCarType >
where TCar: IGenericCar< TCarType > {...}