/*
* JacORB - a free Java ORB
*
* Copyright (C) 1999-2014 Gerald Brose / The JacORB Team.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
package org.jacorb.notification.filter.etcl;
import org.jacorb.notification.filter.EvaluationContext;
import org.jacorb.notification.filter.EvaluationException;
import org.jacorb.notification.filter.EvaluationResult;
import antlr.Token;
/** A simple node to represent NOT operation */
public class NotOperator extends UnaryOperator
{
public NotOperator(Token tok)
{
super(tok);
setName(NAME);
}
public String toString()
{
return " not";
}
public EvaluationResult evaluate(EvaluationContext context, EvaluationResult left)
throws EvaluationException
{
boolean _b = left.getBool();
return (_b ? EvaluationResult.BOOL_FALSE : EvaluationResult.BOOL_TRUE);
}
static final String NAME = "NotOperator";
public void acceptInOrder(AbstractTCLVisitor visitor) throws VisitorException
{
left().acceptInOrder(visitor);
visitor.visitNot(this);
}
public void acceptPreOrder(AbstractTCLVisitor visitor) throws VisitorException
{
visitor.visitNot(this);
left().acceptPreOrder(visitor);
}
public void acceptPostOrder(AbstractTCLVisitor visitor) throws VisitorException
{
left().acceptInOrder(visitor);
visitor.visitNot(this);
}
}