❔ How can I avoid supplying redundant generic type arguments in this case.

interface IDataStructure<ItemType, LocatorType> {...}

Class MyStringArray: IDataStructure<string, int> {...}

Class Effect<D, I, L> where D : IDataStructure<I,L> {...}

new Effect<MyStringArray, string, int>();

This is what I currently have. To give some context, I have a number of custom data structures (implementing IDataStructure) and I would like Effect to be a generic class that can operate on any of them. However, I need access to the Item and Locator types of the data structure within the Effect class.

The above code works however the I and L type arguments are essentially redundant since they can be inferred from D. I would like something like class Effect<D<I,L>> where D : IDataStructure<I,L> { } (which doesn't compile) so that I can do `new Effect<MyStringArray>()' (only specifying one generic type argument but having access to the Item and Locator types within the Effect class).

the way to do this while preserving the types and without the repeated generic would be associated types, but those don't exist in C# yet

if you're okay with the types being erased and with some boxing, you can have a non-generic version of IDataStructure<I, L> that exposes the same properties as objects, then constrain to that interface instead

otherwise you just have to keep the generics I think

Thanks 👍

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