Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <copyright file="Action.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.Xml;
+    using System.Xml.XPath;
+    using MS.Internal.Xml.XPath;
+    using System.Xml.Xsl.XsltOld.Debugger;
+
+    internal abstract class Action {
+        internal const int Initialized  =  0;
+        internal const int Finished     = -1;
+
+        internal abstract void Execute(Processor processor, ActionFrame frame);
+
+        internal virtual void ReplaceNamespaceAlias(Compiler compiler){}
+
+        // -------------- Debugger related stuff ---------
+        // We have to pass ActionFrame to GetNavigator and GetVariables
+        // because CopyCodeAction can't implement them without frame.count
+
+        internal virtual DbgData GetDbgData(ActionFrame frame) { return DbgData.Empty; }
+    }
+}