FieldAccessExpression.cs

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// -------------------------------------------------------------------------- //
// Project rROTOR                                                             //
// -------------------------------------------------------------------------- //
// File: FieldAccessExpression.cs                                             //
// Author: Cristina Gonzalez Muñoz  -  cristi.gm@gmail.com                    //
// Description:                                                               //
//    Encapsulates the expression to access a field.                          //
//    Inheritance: Expression.                                                //
//    Implements Composite pattern [Composite].                               //
//    Implements Visitor pattern [Concrete Element].                          //
// -------------------------------------------------------------------------- //
// Create date: 07-12-2006                                                    //
// Modification date: 25-04-2007                                              //

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

using Tools;
using TypeSystem;
using ErrorManagement;
using TypeSystem.Operations;
using AST.Operations;

namespace AST
{
   public class FieldAccessExpression : Expression
   {
      #region Fields

      private Expression expression;

      private SingleIdentifierExpression field;


       private bool typeInferredInVisitorTypeDefinition = false;

      #endregion

      #region Properties

      public Expression Expression
      {
         get { return this.expression; }
         set { this.expression = value; }
      }

      public SingleIdentifierExpression FieldName
      {
         get { return this.field; }
      }

      public bool TypeInferredInVisitorTypeDefinition {
          get { return typeInferredInVisitorTypeDefinition; }
          set { typeInferredInVisitorTypeDefinition = value; }
      }
    
      public TypeExpression FrozenTypeExpression {
           get { return this.frozenTypeExpression; }
           set { this.frozenTypeExpression = value; }
       }
      #endregion

      #region Constructor

      public FieldAccessExpression(Expression exp, SingleIdentifierExpression fieldName, Location location)
         : base(location)
      {
         this.expression = exp;
         this.field = fieldName;
      }

      #endregion

      #region Accept()

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

      #endregion

      #region Dispatcher AstOperation
      public override object AcceptOperation(AstOperation op, object arg) {
          return op.Exec(this, arg);
      }

      #endregion
   }
}