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

   1 //------------------------------------------------------------------------------
   2 // <copyright file="CommentAction.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 CommentAction : ContainerAction {
  16         internal override void Compile(Compiler compiler) {
  17             CompileAttributes(compiler);
  18
  19             if (compiler.Recurse()) {
  20                 CompileTemplate(compiler);
  21                 compiler.ToParent();
  22             }
  23         }
  24
  25         internal override void Execute(Processor processor, ActionFrame frame) {
  26             Debug.Assert(processor != null && frame != null);
  27
  28             switch (frame.State) {
  29             case Initialized:
  30                 if (processor.BeginEvent(XPathNodeType.Comment, string.Empty, string.Empty, string.Empty, false) == false) {
  31                     // Come back later
  32                     break;
  33                 }
  34
  35                 processor.PushActionFrame(frame);
  36                 frame.State = ProcessingChildren;
  37                 break;                              // Allow children to run
  38
  39             case ProcessingChildren:
  40                 if (processor.EndEvent(XPathNodeType.Comment) == false) {
  41                     break;
  42                 }
  43
  44                 frame.Finished();
  45                 break;
  46
  47             default:
  48                 Debug.Fail("Invalid IfAction execution state");
  49                     break;
  50             }
  51         }
  52     }
  53 }