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  1. OMG Issue

CORBA26 — CCM: Definition of import declaration unclear

  • Key: CORBA26-77
  • Legacy Issue Number: 4577
  • Status: closed  
  • Source: Humboldt-Universitaet ( Martin von Loewis)
  • Summary:

    After reading the definition of the import declaration, it is not at
    all clear what its effect is.

    Suppose the "well-known set of IDL specifications" consists of

    module A {
    module B {
    interface C {
    struct S

    {long a;}


    Now consider the import statement

    import A::B;

    According to the draft, "Names that occur in IDL declarations within
    the importing specification may be resolved to definitions in imported
    scopes." What is a "Name" in this context? Is it an <identifier>, or
    is it a "<scoped_name>"?

    It is unclear whether in this context, the definition

    interface D : C {};

    would be correct or not. The spec may be interpreted that name "C"
    resolves to ::A::B::C, i.e. that the name "C" is appended to the
    imported scopes, forming a fully-scoped name. If that is the intended
    meaning, the text should explain how to deal with conflicts.

    Alternatively, given the text "Imported IDL name scopes exist in the
    same space as names defined in subsequent declarations in the
    importing specification." would suggest that

    interface D : B::C {};

    is well-formed: "B" would be the name of the imported scope, so it
    exists in the same space "D", and can thus be used for qualifications.

    Furthermore, the text could be understand to mean that

    interface D : ::A::B::C {};

    is allowed. The "definition in the imported scope" has the name
    "A::B::C", so this is the name to be used in the importing

  • Reported: CORBA 2.5 — Mon, 17 Sep 2001 04:00 GMT
  • Disposition: Resolved — CORBA 2.6.1
  • Disposition Summary:

    see below

  • Updated: Fri, 6 Mar 2015 20:58 GMT