Emitting a type deriving from another type and an interface with Reflection.Emit.

Question

Dear ladies and sirs.

I have a class A, which implements interface I:

class A: I
{
  // implementation of I
}

There is another interface J, which extends I:

interface J : I
{
  // J methods and properties.
}

I would like to emit a dynamic class B, which would look like so:

class B : A, J
{
  // All the constructors of A
  // All the methods of J, which are not implemented by A. Their implementation would just throw NotImplementedException()
}

I have enough knowledge in Reflection.Emit to do it from scratch, but, alas, I do not really wish to. Does anyone know a library, which can do that?

Thanks.

P.S.

I am aware of the Castle project, but never really used it and do not know whether they have a ready solution for me.

Answer 1

When you create type definition by DefineType there is override with base class and implemented interfaces: http://msdn.microsoft.com/en-us/library/f53tx4x8.aspx

Answer 2

Castle DynamicProxy can be used to do it.