mcs/class/referencesource/System.Data.SqlXml/System/Xml/Xsl/XsltOld/NamespaceEvent.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="NameSpaceEvent.cs" company="Microsoft">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 // <owner current="true" primary="true">Microsoft</owner>
   6 //------------------------------------------------------------------------------
   7
   8 namespace System.Xml.Xsl.XsltOld {
   9     using Res = System.Xml.Utils.Res;
  10     using System;
  11     using System.Diagnostics;
  12     using System.Xml;
  13     using System.Xml.XPath;
  14
  15     internal class NamespaceEvent : Event {
  16         private string namespaceUri;
  17         private string name;
  18
  19         public NamespaceEvent(NavigatorInput input) {
  20             Debug.Assert(input != null);
  21             Debug.Assert(input.NodeType == XPathNodeType.Namespace);
  22             this.namespaceUri = input.Value;
  23             this.name         = input.LocalName;
  24         }
  25
  26         public override void ReplaceNamespaceAlias(Compiler compiler){
  27             if (this.namespaceUri.Length != 0) { // Do we need to check this for namespace?
  28                 NamespaceInfo ResultURIInfo = compiler.FindNamespaceAlias(this.namespaceUri);
  29                 if (ResultURIInfo != null) {
  30                     this.namespaceUri = ResultURIInfo.nameSpace;
  31                     if (ResultURIInfo.prefix != null) {
  32                         this.name = ResultURIInfo.prefix;
  33                     }
  34                 }
  35             }
  36         }
  37
  38         public override bool Output(Processor processor, ActionFrame frame) {
  39             bool res;
  40             res = processor.BeginEvent(XPathNodeType.Namespace, /*prefix:*/null, this.name, this.namespaceUri, /*empty:*/false);
  41             Debug.Assert(res); // Namespace node as any other attribute can't fail because it doesn't signal record change
  42             res = processor.EndEvent(XPathNodeType.Namespace);
  43             Debug.Assert(res);
  44             return true;
  45         }
  46     }
  47 }