Interface Repository

Usually, applications use static knowledge of IDL types to compile.
But, sometimes they need run-time knowledge (e.g., the interface changes and we do not want to recompile).
The IR allows the OMG IDL type system to be accessed and written programmatically at runtime.
Using the IR interface, applications can traverse an entire hierarchy of IDL information.
Or, we can use CORB::Object.get_interface() which returns an InterfaceDef object. Since all objects inherit from Object they all define this function.