Re: Package names & visibility

[jsa@organon.com (Jon S Anthony)]

In article <udspb9atdo.fsf@calaveras.llnl.gov> woodruff@calaveras.llnl.gov (John Woodruff B481) writes:

> with Motor ;
> package Info_About.Motor is
>   A  : Motor.Yes_It_Is ;
>   --  (I'm not *really* going to declare a visible object!)
> end ;
> 
> My thinking was that Info_about.Motor will hold some data values (which
> are of types defined by the Motor package).
> 
> But I can't seem to refer to the type Yes_It_Is!  My friend Gnat tells me
> info_about-motor.ads:3:13: "Yes_It_Is" not declared in "Motor"
> 
> This message clearly states that the visibility of info_about.motor is
> hiding the package Motor where the type is declared.
> 
> Please suggest a way that I can refer to the identifiers that are
> declared in Motor from inside the package Info_about.motor.   Thx!

Maybe this should (is?) in the FAQ.  Two ways:

1. Everything is rooted at Standard, so refer to the "outside" Motor as
Standard.Motor:   A : Standard.Motor.Yes_It_Is;

2. Provide a renaming for "outside" Motor before entering scope of child
Motor.  Maybe in Info_About or at library level.

Option #1 is really the preferred IMO.

/Jon
-- 
Jon Anthony
Organon Motives, Inc.
1 Williston Road, Suite 4
Belmont, MA 02178

617.484.3383
jsa@organon.com