From: bbalfour@std.caci.com (Brad Balfour)
Subject: Re: Ada Java question => clarification
Date: 1997/02/28
Date: 1997-02-28T00:00:00+00:00 [thread overview]
Message-ID: <bbalfour-2802971019510001@stmac0088.std.caci.com> (raw)
In-Reply-To: E6BGyu.Ip6.0.-s@inmet.camb.inmet.com
In article <E6BGyu.Ip6.0.-s@inmet.camb.inmet.com>,
stt@houdini.camb.inmet.com (Tucker Taft) wrote:
>Kendal Van Dyke (kendal@fn3.freenet.tlh.fl.us) wrote:
>
>: Ok, to provide more specific details as to my problem, here are the with
>: and use clauses that accompany the package that contains this function.
>: Again, when I try to compile it I get the error "Direct name, event, is
>: not visible".
[snip]
>...You can
>do any of the following:
> 1) use the full name "java.awt.event" instead of "event";
> 2) drop the use of "event" in "event.UP" and say simply "UP";
> 3) add a "use" clause for "java.awt" which will make the package
> names "event", "component", "color", and "graphics" directly visible.
However, once you follow #1, you will get the following error for each
case choice:
WHEN java.awt.event.UP => return true;
keydown.ada: Error: line 30 col 27 LRM:3.8.1(8) & 5.4(5), The expression
in the discrete choice must be static
Despite the two RM95 references quoted above, the real reason is found in
4.9(24) which let's us know that a static constant must be a full constant
declaration or a renaming. java.awt.event.UP is a constant integer whose
value is supplied via a pragma Import. This means that it is constant, but
*not* a static constant.
So, unfortunately, you need to change the case statement into an if statement.
Brad
>: . |/ .
>: . |\ENDAL .
>: . WWW => http://www.cs.fsu.edu/~vandyke .
>: . EMail => vandyke@cs.fsu.edu .
>: . Pager => (904) 297-6658 .
>-Tucker Taft stt@inmet.com http://www.inmet.com/~stt/
>Intermetrics, Inc. Burlington, MA USA
--
Brad Balfour SIGAda WWW Server
CACI, Inc. http://www.acm.org/sigada/
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3930 Pender Drive Fairfax, VA 22030
"...they even have rules for exceptions" -- Dewar and Schonberg
next prev parent reply other threads:[~1997-02-28 0:00 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-02-26 0:00 Ada Java question Kendal Van Dyke
1997-02-27 0:00 ` Tucker Taft
1997-02-28 0:00 ` Ada Java question => clarification Kendal Van Dyke
1997-02-28 0:00 ` Tucker Taft
1997-02-28 0:00 ` Brad Balfour [this message]
1997-02-28 0:00 ` Kendal Van Dyke
1997-02-28 0:00 ` Norman H. Cohen
1997-03-01 0:00 ` David Taylor
1997-03-02 0:00 ` Robert Dewar
1997-03-06 0:00 ` David Taylor
1997-03-08 0:00 ` tagged type auto-"Use", was " Tom Moran
1997-03-10 0:00 ` Dennis Reimer
1997-03-09 0:00 ` Robert Dewar
1997-03-09 0:00 ` Larry Kilgallen
1997-03-09 0:00 ` Robert Dewar
1997-03-15 0:00 ` Matthew Heaney
1997-03-01 0:00 ` Fergus Henderson
1997-02-28 0:00 ` Ada Java question => oops!! Kendal Van Dyke
1997-03-02 0:00 ` Ada Java question => clarification Robert Dewar
1997-03-03 0:00 ` Brad Balfour
1997-03-05 0:00 ` Robert Dewar
1997-03-05 0:00 ` Brad Balfour
1997-02-28 0:00 ` Ada Java question Tom Halliley
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