Summary: Standardisation of the declaration of the Ada units mapping the
Interface Repository Specification

Description:
The mapping of the IDL specification of the IR in Ada implies
the creation of forward declarations of interfaces (the
"IDLType" interface for instance). Those should be mapped in
Ada to subpackages of CORBA using the CORBA.Forward
package. This leads to a circular dependency in the new CORBA
package.

Proposed solution:
These interfaces cannot be mapped as instanciations of
CORBA.Forward that are child packages of CORBA, because
they are subsequently used in the definition of record
types in the declaration of CORBA (eg interface IDLType
as a component of StructMember).

We therefore propose the following addition to the standard
mapping definition for module CORBA:

"The types defined within module CORBA by the Interface
Repository Specification (formal/99-10-07, p10-56 to 10-68),
except the TypeCode and ORB interfaces, shall be mapped to a
(child) library package CORBA.Repository_Root."

A comment at the end of the declaration of the package CORBA
implies that this is probably the intent of the author to
provide such a standard child unit.

We further propose that the contents of the declaration of
child package CORBA.Repository_Root be standardized. We will
provide a proposed specification on request.

The current mapping of IDL sequences to the Ada language results in a instantiation of a defined generic package. However, each instantiation results in roughly 150K of additional object code. This is excessive for embedded systems, especially if multiple sequences are used in an application. A lightweight alternative, such as the mapping defined for C++, should be defined.