Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,69 @@
+//------------------------------------------------------------------------------
+// <copyright file="MessageAction.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+// <owner current="true" primary="true">[....]</owner>
+//------------------------------------------------------------------------------
+
+namespace System.Xml.Xsl.XsltOld {
+    using Res = System.Xml.Utils.Res;
+    using System;
+    using System.IO;
+    using System.Globalization;
+    using System.Diagnostics;
+    using System.Xml;
+    using System.Xml.XPath;
+
+    internal class MessageAction : ContainerAction {
+        bool _Terminate;
+
+        internal override void Compile(Compiler compiler) {
+            CompileAttributes(compiler);
+
+            if (compiler.Recurse()) {
+                CompileTemplate(compiler);
+                compiler.ToParent();
+            }
+        }
+
+        internal override bool CompileAttribute(Compiler compiler) {
+            string name   = compiler.Input.LocalName;
+            string value  = compiler.Input.Value;
+            if (Ref.Equal(name, compiler.Atoms.Terminate)) {
+                _Terminate = compiler.GetYesNo(value);
+            }
+            else {
+                return false;
+            }
+
+            return true;
+        }
+
+        internal override void Execute(Processor processor, ActionFrame frame) {
+            Debug.Assert(processor != null && frame != null);
+            switch (frame.State) {
+            case Initialized:
+                TextOnlyOutput output = new TextOnlyOutput(processor, new StringWriter(CultureInfo.InvariantCulture));
+                processor.PushOutput(output);
+                processor.PushActionFrame(frame);
+                frame.State = ProcessingChildren;
+                break;
+
+            case ProcessingChildren:
+                TextOnlyOutput recOutput = processor.PopOutput() as TextOnlyOutput;
+                Debug.Assert(recOutput != null);
+                Console.WriteLine(recOutput.Writer.ToString());
+
+                if (_Terminate) {
+                    throw XsltException.Create(Res.Xslt_Terminate, recOutput.Writer.ToString());
+                }
+                frame.Finished();
+                break;
+            
+            default:
+                Debug.Fail("Invalid MessageAction execution state");
+                break;
+            }
+        }
+    }
+}