/*
* xtc - The eXTensible Compiler
* Copyright (C) 2005-2007 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;
/**
* An alternative addition. The superclass's attributes are ignored.
*
* @author Robert Grimm
* @version $Revision: 1.5 $
*/
public class AlternativeAddition extends PartialProduction {
/** The sequence relative to which the choice is to be added. */
public SequenceName sequence;
/**
* The flag for whether the choice is to be added after or before
* the sequence.
*/
public boolean isBefore;
/**
* Create a new alternative addition.
*
* @param dType The declared type.
* @param name The name.
* @param choice The choice.
* @param sequence The sequence.
* @param isBefore The before flag.
*/
public AlternativeAddition(String dType, NonTerminal name,
OrderedChoice choice, SequenceName sequence,
boolean isBefore) {
super(null, dType, name, choice);
this.sequence = sequence;
this.isBefore = isBefore;
}
public boolean isAddition() {
return true;
}
public boolean equals(Object o) {
if (this == o) return true;
if (! (o instanceof AlternativeAddition)) return false;
AlternativeAddition other = (AlternativeAddition)o;
if (! name.equals(other.name)) return false;
if (null == type) {
if (! dType.equals(other.dType)) return false;
} else {
if (! type.equals(other.type)) return false;
}
if (! sequence.equals(other.sequence)) return false;
return isBefore == other.isBefore;
}
}