Interfaces on Structs

[TonyValenti]

Is there a way to make a single method that essentially "merges" the two definitions below?

public static IEnumerable<T> EmptyIfNull<T>(this IEnumerable<T>? This) ...
public static IEnumerable<T> EmptyIfNull<T>(this ImmutableArray<T>? This) ...

I'd ideally like it to work with all nullable structs that implement the interface, not just ImmutableArray.

[CyrusNajmabadi]

public static IEnumerable<T> EmptyIfNull<T, TEnumerable>(this TEnumerable enumerable) where TEnumerable : IEnumerable<T>

That would work for both. Unfortunately, type inference will not, so you'll have to be extremely explicit. To the point that i doubt it would be worth it.