using System;
using System.Collections.Generic;
using System.Text;
using DiagramUI;
using DiagramUI.Interfaces;
using FormulaEditor;
using FormulaEditor.Interfaces;
namespace DataPerformer
{
/// <summary>
/// Variable linked to alias
/// </summary>
public class AliasNameVariable : IObjectOperation, IOperationAcceptor, IDerivationOperation, ITreeCreator
{
#region Fields
/// <summary>
/// Alias
/// </summary>
protected IAlias alias;
/// <summary>
/// Name
/// </summary>
protected string name;
/// <summary>
/// Symbol
/// </summary>r
protected string symbol;
/// <summary>
/// Associated tree
/// </summary>
protected ObjectFormulaTree tree;
#endregion
#region Ctor
/// <summary>
/// Constructor
/// </summary>
/// <param name="symbol">Formula symbol</param>
/// <param name="alias">Alias object</param>
/// <param name="name">Alias name</param>
public AliasNameVariable(string symbol, IAlias alias, string name)
{
this.alias = alias;
this.name = name;
this.symbol = symbol;
tree = new ObjectFormulaTree(this, new List<ObjectFormulaTree>());
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="symbol">Formula symbol</param>
/// <param name="alias">Alias object</param>
/// <param name="name">Alias name</param>
public AliasNameVariable(char symbol, IAlias alias, string name)
: this(symbol + "", alias, name)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="symbol">Formula symbol</param>
/// <param name="alias">Alias object</param>
public AliasNameVariable(char symbol, IAlias alias)
: this(symbol + "", alias, symbol + "")
{
}
#endregion
#region IObjectOperation Members
int IObjectOperation.Arity
{
get { return 0; }
}
object IObjectOperation.this[object[] x]
{
get { return alias[name]; }
}
object IObjectOperation.ReturnType
{
get { return alias.GetType(name); }
}
bool IObjectOperation.IsPowered
{
get { return true; }
}
#endregion
#region IOperationAcceptor Members
IObjectOperation IOperationAcceptor.Accept(object type)
{
return this;
}
#endregion
#region IDerivationOperation Members
ObjectFormulaTree IDerivationOperation.Derivation(ObjectFormulaTree tree, string s)
{
return ElementaryRealConstant.RealZero;
}
#endregion
#region ITreeCreator Members
ObjectFormulaTree ITreeCreator.Tree
{
get { return tree; }
}
#endregion
}
}
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