Purpose of C# constructor extern modifier

Question

What is the Purpose of C# constructor extern modifier?

I know about usage of extern METHODS to invoke Win32 functions, but what about CONSTRUCTORS?

Please give t

Answer 1

The c# spec here indicates that apart from private, internal, protected and public, extern may be used and that this is standard external reference - see here. This to me says that the contstructor is linked into the class at a later time. Just like the PInvoke calls are. There's nothing, I'm guessing, stopping the c# compiler implementer allowing linking of external .net .modules containing said external constructors.

I cannot give an example, but I suspect one way woud be to implement the constructor in MC++, or in fact just a simple IL .module.