Definition of a derived type.
 A derived type is an array of a base type.

 A $TypeDef object reside in the type hierarchy in a class volume, and
 is placed as a child to the $TypeHier object.

 Base types and derived types are used to define the type of an
 attribute in an object. The type is defined by the TypeRef attribute
 in the $Attribute object (also in $Input, $Inter, $Output).

• $TypeHier
• $Type

Compiled type.

Compiled size.

Base type.

Number of elements.

Name of enum and mask typedefs in c.