/*
* xtc - The eXTensible Compiler
* Copyright (C) 2004-2006 Robert Grimm
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
package xtc.parser;
/**
* Visitor to create the production meta-data. Note that this visitor
* only creates the meta-data records, but does not fill in
* appropriate values. Further note that this visitor assumes that
* the entire grammar is contained in a single module.
*
* @see DeadProductionEliminator
* @see MetaDataSetter
*
* @author Robert Grimm
* @version $Revision: 1.11 $
*/
public class MetaDataCreator extends xtc.tree.Visitor {
/** Create a new meta-data creator. */
public MetaDataCreator() { /* Nothing to do. */ }
/** Visit the specified grammar. */
public void visit(Module m) {
for (Production p : m.productions) dispatch(p);
}
/** Visit the specified production. */
public void visit(Production p) {
if (! p.hasProperty(Properties.META_DATA)) {
p.setProperty(Properties.META_DATA, new MetaData());
}
}
}