Re: Diana specification for Ada

[Tucker Taft <stt@averstar.com>]

Dragonboy wrote:
> 
> Does anyone know where I can object a functional/design specification
> for the Diana intermediate representation that is used by Ada
> compilers?  I know that it's some form of abstract syntax tree, but
> that's about it.

AverStar in its former guise of Intermetrics (Bethesda, MD) delivered
a "Diana Reference Manual, Revision 4" to Naval Research Laboratory on
5 May 1986.  The Intermetrics document number was "IR-MD-078" and
the NRL contract number was N00014-84-C-2445.

Unfortunately, the author's of that document have since left the company,
but you might be able to call our Vienna office and see if they still
have access to the old Bethesda archives (TEL: 703-827-2606, you might
ask for Darryl Scott -- dscott@averstar.com).

The other source would be Rational, who continue to use a variant of
Diana in their Ada 95 compiler, I believe.  Most other vendors
do not use Diana currently, though all obviously have some form
of abstract syntax tree, though it might be just for a fragment of
the program.

> 
> Thanks.
> 
> -DB

-- 
-Tucker Taft   stt@averstar.com   http://www.averstar.com/~stt/
Technical Director, Commercial Division, AverStar (formerly Intermetrics)
(http://www.averstar.com/services/IT_consulting.html)  Burlington, MA  USA