Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,98 @@
+//------------------------------------------------------------------------------
+// <copyright file="AttributeSetAction.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.Diagnostics;
+    using System.Xml;
+    using System.Xml.XPath;
+    using System.Collections;
+
+    internal class AttributeSetAction : ContainerAction {
+        internal XmlQualifiedName            name;
+
+        internal XmlQualifiedName Name {
+            get { return this.name; }
+        }
+
+        internal override void Compile(Compiler compiler) {
+            CompileAttributes(compiler);
+            CheckRequiredAttribute(compiler, this.name, "name");
+            CompileContent(compiler);
+        }
+
+        internal override bool CompileAttribute(Compiler compiler) {
+            string name   = compiler.Input.LocalName;
+            string value  = compiler.Input.Value;
+            if (Ref.Equal(name, compiler.Atoms.Name)) {
+                Debug.Assert(this.name == null);
+                this.name = compiler.CreateXPathQName(value);
+            }
+            else if (Ref.Equal(name, compiler.Atoms.UseAttributeSets)) {
+                // create a UseAttributeSetsAction
+                // sets come before xsl:attributes
+                AddAction(compiler.CreateUseAttributeSetsAction());
+            }
+            else {
+                return false;
+            }
+
+            return true;
+        }
+
+        private void CompileContent(Compiler compiler) {
+            NavigatorInput input = compiler.Input;
+
+            if (compiler.Recurse()) {
+                do {
+                    switch(input.NodeType) {
+                    case XPathNodeType.Element:
+                        compiler.PushNamespaceScope();
+
+                        string nspace = input.NamespaceURI;
+                        string name   = input.LocalName;
+
+                        if (Ref.Equal(nspace, input.Atoms.UriXsl) && Ref.Equal(name, input.Atoms.Attribute)) {
+                            // found attribute so add it
+                            AddAction(compiler.CreateAttributeAction());
+                        }
+                        else {
+                            throw compiler.UnexpectedKeyword();
+                        }
+                        compiler.PopScope();
+                        break;
+
+                    case XPathNodeType.Comment:
+                    case XPathNodeType.ProcessingInstruction:
+                    case XPathNodeType.Whitespace:
+                    case XPathNodeType.SignificantWhitespace:
+                        break;
+
+                    default:
+                        throw XsltException.Create(Res.Xslt_InvalidContents, "attribute-set");
+                    }
+                }
+                while(compiler.Advance());
+
+                compiler.ToParent();
+            }
+        }
+
+        internal void Merge(AttributeSetAction attributeAction) {
+            // add the contents of "attributeAction" to this action
+            // place them at the end
+            Action  action;
+            int     i = 0;
+
+            while((action = attributeAction.GetAction(i)) != null) {
+                AddAction(action);
+                i++;
+            }
+        }
+    }
+}