How to dynamically iterate/detect member types in ValueTuple that has null members? [duplicate]

Answer 1

I think you are mixing data and metadata. The first call succeed since int is a value type, and default(int) assigns the value to 0, so it works. This won't do for reference types, since these are assigned initially to null.

I believe the proper approach here is, well, reflection - and iterating over the properties of the type, without the need to create an instance (so the new() restriction is redundant).

public static void IterateTupleMemberTypes<T>() where T : ITuple
{
    var tupleGenericArguments = typeof(T).GetGenericArguments();
    for (var i = 0; i < tupleGenericArguments.Length; ++i)
    {
        Console.WriteLine($"Item{i} Type: {tupleGenericArguments[i].Name}");
    }
}