This document lists some important changes between MCS and GMCS.

* Defining Types

  There's a fundamental change in how we're defining types in
  TypeContainer.DefineType().

  In MCS, we resolve a type's parent type and the interface it
  implements before actually creating the TypeBuilder.  We can easily
  detect "recursive" declarations (CS0146) if DefineType() is called
  recursively.

  This has changed in GMCS since the following type of a recursive
  declaration is allowed:

	class Foo<T> { }

	class Bar<T> : Foo<Bar<T>> { }

  To allow this, we must define Bar's TypeBuilder before resolving its
  parent classes and call TypeBuilder.SetParent() later.


Last updated September 9th, 2004
Martin Baulig <martin@ximian.com>