/*========================================================================
Copyright (C) 2006 by Geir-Tore Lindsve, Torbjørn Meistad
and Yngve Raudberget, hereby refered to as "the authors".
All rights reserved
Permission is hereby granted, without written agreement and without
license or royalty fees, to use, reproduce, prepare derivative
works, distribute, and display this software and its documentation
for NONCOMMERCIAL RESEARCH AND EDUCATIONAL PURPOSES, provided
that (1) the above copyright notice and the following two paragraphs
appear in all copies of the source code and (2) redistributions,
including without limitation binaries, reproduce these notices in
the supporting documentation.
IN NO EVENT SHALL THE AUTHORS, OR DISTRIBUTORS OF THIS SOFTWARE
BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE
AND ITS DOCUMENTATION, EVEN IF THE AUTHORS OR ANY OF THE ABOVE
PARTIES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE NO
OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
MODIFICATIONS.
========================================================================*/
using System;
using System.Collections.Generic;
using System.Text;
using Casper.Algorithm;
namespace Casper.Data
{
///
/// A class for negated expressions.
/// The class consist of an expression which should be negated.
/// Implements the abstract CSPExpr class.
///
public class CSPExprNeg : CSPExpr
{
private CSPExpr left;
///
/// Initializes a new instance of the class.
///
/// The left expression
public CSPExprNeg(CSPExpr left)
:base()
{
this.left = left;
}
///
/// Gets the expression.
///
/// The left.
public CSPExpr Left
{
get { return left; }
}
///
/// Overriden method which runs
/// in the consistent implementation. Double dispatch pattern.
///
///
/// An int, telling if the expression is valid or not.
internal override int ConsistentCheckExpression(Consistent consistentImpl)
{
return consistentImpl.ConsistentCheckExpression(this);
}
///
/// Returns a that represents the current .
///
///
/// A that represents the current .
///
public override string ToString()
{
return left.ToString();
}
}
}