Re: Rational argument for not using a preprocessor for Java?

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 14 Mar 2010 15:39:26 -0400
Message-ID:
<4b9d3b61$0$286$14726298@news.sunsite.dk>
On 14-03-2010 12:53, Stefan Ram wrote:

Arne Vajh?j<arne@vajhoej.dk> writes:

Do you run your Java code through the C preprocessor?


   Sometimes I run Java code through a preprocessor.

   For example, I write the file ?Add.java? in the
   directory ?de/dclj/ram? as:

$include /java.gpp
$define VERSION slr@2009-08-29T17:35:33+02:00
$define SINCE slr@2007-08-30T01:17:50+02:00
HEADER
/**
REFERENCES */

@de.dclj.ram.meta.quality.Cleaned(2)
DECLARE(interface)< Domain>
{ public void add( final Domain value ); }

   The preprocessor generates from this:

/* Copyright 2004-2010 Stefan Ram.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */

package de.dclj.ram;

/**

@version slr@2009-08-29T17:35:33+02:00
@since slr@2007-08-30T01:17:50+02:00
@see<a href="http://www.purl.org/stefan_ram/java/de/dclj/ram/Add.java">source code</a>
@see<a href="http://www.purl.org/stefan_ram/html/ram.jar/de/dclj/ram/Add.html">documentation</a>
@see "<a href='http://www.purl.org/stefan_ram/pub/ram-jar'>Library homepage</a> (Must be opened in a<i>new window</i>, outside of frames, to avoid a 403 status code.)" */

@de.dclj.ram.meta.quality.Cleaned(2)
@de.dclj.ram.meta.description.Copyright( "Copright 2004-2009 Stefan Ram" )
@de.dclj.ram.meta.description.TypePath( "de.dclj.ram.Add" )
@de.dclj.ram.meta.description.Cleared( "slr@2009-08-29T17:35:33+02:00" )
public interface Add /* de.dclj.ram.Add */< Domain>
{ public void add( final Domain value ); }

   Thus, the preprocessor inserts some boilerplate and
   derives the name of the type declared from the file
   name.


Similar concepts has been seen before, but note that you are
halfway at creating a new language.

Arne

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