RelationalExpression.cs

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// -------------------------------------------------------------------------- //
// Project rROTOR                                                             //
// -------------------------------------------------------------------------- //
// File: RelationalExpression.cs                                              //
// Authors: Cristina Gonzalez Muñoz  -  cristi.gm@gmail.com                   //
//          Francisco Ortin - francisco.ortin@gmail.com                       //
// Description:                                                               //
//    Encapsulates a relational binary expression.                            //
//    Inheritance: BinaryExpression.                                          //
//    Implements Composite pattern [Composite].                               //
//    Implements Visitor pattern [Concrete Element].                          //
// -------------------------------------------------------------------------- //
// Create date: 05-12-2006                                                    //
// Modification date: 06-04-2007                                              //

using System;
using System.Collections.Generic;
using System.Text;

using Tools;
using ErrorManagement;

namespace AST
{
   #region RelationalOperator

   public enum RelationalOperator
   {
      NotEqual,

      Equal,

      LessThan,

      GreaterThan,

      LessThanOrEqual,

      GreaterThanOrEqual,
   }

   #endregion

   public class RelationalExpression : BinaryExpression
   {
      #region Fields

      private RelationalOperator op;

      #endregion

      #region Properties

      public RelationalOperator Operator
      {
         get { return op; }
      }

      #endregion

      #region Constructor

      public RelationalExpression(Expression operand1, Expression operand2, RelationalOperator op, Location location)
         : base(operand1, operand2, location)
      {
         this.op = op;
      }

      #endregion

      #region Accept()

      public override Object Accept(Visitor v, Object o)
      {
         return v.Visit(this, o);
      }

      #endregion


#region ToString()
       public override string  ToString() {
     return op.ToString();
}
 
    #endregion

   }
}