mcs/class/referencesource/System.Data.SqlXml/System/Xml/Xsl/QIL/QilBinary.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="QilBinary.cs" company="Microsoft">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 // <owner current="true" primary="true">Microsoft</owner>
   6 //------------------------------------------------------------------------------
   7 using System;
   8 using System.Collections.Generic;
   9 using System.Diagnostics;
  10
  11 namespace System.Xml.Xsl.Qil {
  12
  13     /// <summary>
  14     /// View over a Qil operator having two children.
  15     /// </summary>
  16     /// <remarks>
  17     /// Don't construct QIL nodes directly; instead, use the <see cref="QilFactory">QilFactory</see>.
  18     /// </remarks>
  19     internal class QilBinary : QilNode {
  20         private QilNode left, right;
  21
  22
  23         //-----------------------------------------------
  24         // Constructor
  25         //-----------------------------------------------
  26
  27         /// <summary>
  28         /// Construct a new node
  29         /// </summary>
  30         public QilBinary(QilNodeType nodeType, QilNode left, QilNode right) : base(nodeType) {
  31             this.left = left;
  32             this.right = right;
  33         }
  34
  35
  36         //-----------------------------------------------
  37         // IList<QilNode> methods -- override
  38         //-----------------------------------------------
  39
  40         public override int Count {
  41             get { return 2; }
  42         }
  43
  44         public override QilNode this[int index] {
  45             get {
  46                 switch (index) {
  47                     case 0: return this.left;
  48                     case 1: return this.right;
  49                     default: throw new IndexOutOfRangeException();
  50                 }
  51             }
  52             set {
  53                 switch (index) {
  54                     case 0: this.left = value; break;
  55                     case 1: this.right = value; break;
  56                     default: throw new IndexOutOfRangeException();
  57                 }
  58             }
  59         }
  60
  61
  62         //-----------------------------------------------
  63         // QilBinary methods
  64         //-----------------------------------------------
  65
  66         public QilNode Left {
  67             get { return this.left; }
  68             set { this.left = value; }
  69         }
  70
  71         public QilNode Right {
  72             get { return this.right; }
  73             set { this.right = value; }
  74         }
  75     }
  76 }