From: Anh Vo <anhvofrcaus@gmail.com>
Subject: Re: My bug or else regarding Visibility Rules
Date: Fri, 29 Mar 2013 23:05:11 -0700 (PDT)
Date: 2013-03-29T23:05:11-07:00 [thread overview]
Message-ID: <89292c53-1d4e-48a7-b2ae-a10983ef4168@googlegroups.com> (raw)
In-Reply-To: <kj2en4$9q1$1@munin.nbi.dk>
On Thursday, March 28, 2013 3:03:13 PM UTC-7, Randy Brukardt wrote:
> "Adam Beneschan" <adam@irvine.com> wrote in message
> news:25ee066d-3270-4efd-829f-ed40b04c0655@googlegroups.com...
> > On Thursday, March 28, 2013 12:54:26 PM UTC-7, Anh Vo wrote:
> >> For the codes below GNAT complains that In_Index, Buffer, and Out_Index
> >> are undefined.
> > However, if I comment out private key word, GNAT is happy. Did I violate
> > Ada syntax rules? Thanks.
> >
> > 13.1.1(11): The usage names in an aspect_definition [ are not resolved at
> > the point of the
> >associated declaration, but rather] are resolved at the end of the
> >immediately enclosing declaration list.
> >
> > In your example, the "immediately enclosing declaration list" ends at the
> > keyword PRIVATE
> > when that keyword is present; but if you take it out, the declaration list
> > ends at "end Circular_Queue;".
>
> Which is the long way to say that the expression of a public aspect has to
> be made up only of public functions and objects. Otherwise, how would a
> caller be able to figure out the meaning of a precondition that they are
> required to meet? Clients can never be required to look in a private part.
Actually, this part only involves post-conditions (implementer), not preconditions (clients).
A. Vo
next prev parent reply other threads:[~2013-03-30 6:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-28 19:54 My bug or else regarding Visibility Rules Anh Vo
2013-03-28 20:58 ` Adam Beneschan
2013-03-28 22:03 ` Randy Brukardt
2013-03-30 6:05 ` Anh Vo [this message]
2013-04-02 0:56 ` Randy Brukardt
2013-04-02 1:52 ` Anh Vo
2013-04-02 8:26 ` Simon Wright
2013-04-02 18:17 ` Anh Vo
2013-04-02 20:16 ` Simon Wright
2013-04-03 23:21 ` Anh Vo
2013-04-04 8:19 ` Simon Wright
2013-04-04 19:21 ` Anh Vo
2013-04-04 19:47 ` Simon Wright
2013-04-02 22:04 ` Randy Brukardt
2013-03-28 22:06 ` Anh Vo
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