Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,105 @@
+//------------------------------------------------------------------------------
+// <copyright file="CallTemplateAction.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;
+
+    internal class CallTemplateAction : ContainerAction {
+        private const int        ProcessedChildren = 2;
+        private const int        ProcessedTemplate = 3;
+        private XmlQualifiedName 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 {
+                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.WithParam)) {
+                                WithParamAction par = compiler.CreateWithParamAction();
+                                CheckDuplicateParams(par.Name);
+                                AddAction(par);
+                        }
+                        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, "call-template");
+                    }
+                } while(compiler.Advance());
+
+                compiler.ToParent();
+            }
+        }
+
+        internal override void Execute(Processor processor, ActionFrame frame) {
+            Debug.Assert(processor != null && frame != null);
+            switch(frame.State) {
+            case Initialized : 
+                processor.ResetParams();
+                if (this.containedActions != null && this.containedActions.Count > 0) {
+                    processor.PushActionFrame(frame);
+                    frame.State = ProcessedChildren;
+                    break;
+                }
+                goto case ProcessedChildren;
+            case ProcessedChildren:
+                TemplateAction action = processor.Stylesheet.FindTemplate(this.name);
+                if (action != null) { 
+                    frame.State = ProcessedTemplate;
+                    processor.PushActionFrame(action, frame.NodeSet);
+                    break;
+                }
+                else {
+                    throw XsltException.Create(Res.Xslt_InvalidCallTemplate, this.name.ToString());
+                }
+            case ProcessedTemplate:
+                frame.Finished();
+                break;
+            default:
+                Debug.Fail("Invalid CallTemplateAction execution state");
+                break;
+            }
+        }
+    }
+}