CORBA35 — P 5-44: use of base type

Summary: On page 5-44, a new production has been added to the grammar to allow the use of ValueBase to be used as a base type. (<base_type_spec> ::= ... | <value_type_spec). My concern is that all other types of base type specifiers have a PrimitiveKind. However, either you guys forgot or didn"t want to have, that a value or ValueBase does not have a corresponding PrimitiveKind enum value. This becomes essential later on when we want to go into the InterfaceRepository, and find that some type is a ValueBase, we will need to know this. The easiest way to do this could be through a PrimitiveDef, where it"s def_kind attribute is a dk_Primitive, and to satisfy the IDLType interface for they type attribute, we could return a TCKind of tk_value or tk_ValueBase. An alternate could be to not go the PrimitiveDef route and use a different approach. Perhaps we could have a method in the Container or Repository interfaces called create_ValueBase. This would be much like creating an unnamed type such as a sequence, a string, primitive, or array (i.e. get_primitive(), create_string(), etc. in the Repository interface). This is less likely though because create_ValueBase would need to return a type. We could return a ValueDef, but create_ValueBase wouldn"t have enough information passed to it to create on and besides, a ValueDef is named. We could have a whole new definition interface called ValueBaseDef, but this way is a pain if you ask me.