I am looking at this example:

List<Product> products = Product. GetSampleProducts() ;
products.Sort(
    (first, second) => first.Name.CompareTo(second. Name)
) ;
foreach (Product product in products)
{
    Console. WriteLine(product) ;
}

What function is actually called in the API when you do that? Does the compiler create a class which implemnents the IComparer interface?

I thought delegates were anonymous methods - Here it seems to be an anonymous interface implementation which is casuing confusion