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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: decomposing large packages
Date: Thu, 09 Jan 2020 17:43:40 +0000
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Date: 2020-01-09T17:43:40+00:00
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mario.blunk.gplus@gmail.com writes:

>> P's body can see P.S1:
>> 
>>    package P.S1 is
>>       procedure N (Value : Thing) is null; -- save typing :-)
>>    end P.S1;
>> 
>>    with P.S1;
>>    package body P is
>>       procedure M (Value : Thing) is
>>       begin
>>          S1.N (Value);
>>       end M;
>>    end P;
>
> Thanks Simon, but the body of P can't see the specification of S1.

Oh yes it can. Full test program:

package P is
   type Thing is new Integer;
   procedure M (Value : Thing);
end P;
with P.S1;
package body P is
   procedure M (Value : Thing) is
   begin
      S1.N (Value);
   end M;
end P;
with Ada.Text_IO;
package P.S1 is
   procedure N (Value : Thing);
end P.S1;
package body P.S1 is
   procedure N (Value : Thing) is
   begin
      Ada.Text_IO.Put_Line ("P.S1.N called with " & Value'Img);
   end N;
end P.S1;
with P;
procedure Test is
begin
   P.M (42);
end Test;

===============

$ gnatmake test -f
gcc -c test.adb
gcc -c p.adb
gcc -c p-s1.adb
gnatbind -x test.ali
gnatlink test.ali
gnatlink: warning: executable name "test" may conflict with shell command
$ ./test
P.S1.N called with  42