AspectSharp/AspectSharp.Lang/AST/Visitors/XmlTreeVisitor.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace AspectSharp.Lang.AST.Visitors
  16 {
  17         using System;
  18         using System.Xml;
  19         using System.Collections;
  20
  21         /// <summary>
  22         /// Summary description for PrintTreeVisitor.
  23         /// </summary>
  24         public class XmlTreeVisitor : DepthFirstVisitor
  25         {
  26                 private XmlDocument _document;
  27                 private Stack _nodes = new Stack();
  28
  29                 public XmlTreeVisitor()
  30                 {
  31                         _document = new XmlDocument();
  32                 }
  33
  34                 private void Push( XmlNode node )
  35                 {
  36                         if (Current != null)
  37                         {
  38                                 Current.AppendChild( node );
  39                         }
  40                         else
  41                         {
  42                                 _document.AppendChild(node);
  43                         }
  44
  45                         _nodes.Push(node);
  46                 }
  47
  48                 private void Pop()
  49                 {
  50                         XmlNode node = (XmlNode) _nodes.Pop();
  51                 }
  52
  53                 private XmlNode Current
  54                 {
  55                         get { return _nodes.Count != 0 ? _nodes.Peek() as XmlNode : _document.DocumentElement; }
  56                 }
  57
  58                 public XmlDocument Document
  59                 {
  60                         get { return _document; }
  61                 }
  62
  63                 public override void OnEngineConfiguration(EngineConfiguration conf)
  64                 {
  65                         Push( Document.CreateNode(XmlNodeType.Element, "configuration", null) );
  66                         base.OnEngineConfiguration (conf);
  67                         Pop();
  68                 }
  69
  70                 public override void OnGlobalInterceptorDeclaration(NodeCollectionBase dict)
  71                 {
  72                         if (dict.Count == 0) return;
  73
  74                         Push( Document.CreateNode(XmlNodeType.Element, "interceptors", null) );
  75                         base.OnGlobalInterceptorDeclaration(dict);
  76                         Pop();
  77                 }
  78
  79                 public override void OnGlobalMixinDeclaration(NodeCollectionBase dict)
  80                 {
  81                         if (dict.Count == 0) return;
  82
  83                         Push( Document.CreateNode(XmlNodeType.Element, "mixins", null) );
  84                         base.OnGlobalMixinDeclaration(dict);
  85                         Pop();
  86                 }
  87
  88                 public override void OnAspectDefinition(AspectDefinition aspect)
  89                 {
  90                         Push( Document.CreateNode(XmlNodeType.Element, "aspect", null) );
  91
  92                         XmlAttribute att = Document.CreateAttribute("name");
  93                         att.Value = aspect.Name;
  94                         Current.Attributes.Append( att );
  95
  96                         Push( Document.CreateNode(XmlNodeType.Element, "for", null) );
  97                         SerializeTargetType( aspect.TargetType );
  98                         Pop();
  99
 100                         base.OnAspectDefinition (aspect);
 101                         Pop();
 102                 }
 103
 104                 public override void OnImportDirective(ImportDirective import)
 105                 {
 106                         Push( Document.CreateNode(XmlNodeType.Element, "import", null) );
 107
 108                         XmlAttribute att = Document.CreateAttribute("namespace");
 109                         att.Value = import.Namespace;
 110                         Current.Attributes.Append( att );
 111
 112                         SerializeAssemblyReference( import.AssemblyReference );
 113
 114                         Pop();
 115                 }
 116
 117                 public override void OnInterceptorDefinition(InterceptorDefinition interceptor)
 118                 {
 119                         Push( Document.CreateNode(XmlNodeType.Element, "interceptor", null) );
 120                         SerializeTypeReference(interceptor.TypeReference);
 121                         Pop();
 122                 }
 123
 124                 public override void OnMixinDefinition(MixinDefinition mixin)
 125                 {
 126                         Push( Document.CreateNode(XmlNodeType.Element, "mixin", null) );
 127                         SerializeTypeReference(mixin.TypeReference);
 128                         Pop();
 129                 }
 130
 131                 public override void OnInterceptorEntryDefinition(InterceptorEntryDefinition interceptor)
 132                 {
 133                         Push( Document.CreateNode(XmlNodeType.Element, "interceptor", null) );
 134                         XmlAttribute att = Document.CreateAttribute("key");
 135                         att.Value = interceptor.Key;
 136                         Current.Attributes.Append( att );
 137                         SerializeTypeReference(interceptor.TypeReference);
 138                         Pop();
 139                 }
 140
 141                 public override void OnMixinEntryDefinition(MixinEntryDefinition mixin)
 142                 {
 143                         Push( Document.CreateNode(XmlNodeType.Element, "mixin", null) );
 144                         XmlAttribute att = Document.CreateAttribute("key");
 145                         att.Value = mixin.Key;
 146                         Current.Attributes.Append( att );
 147                         SerializeTypeReference(mixin.TypeReference);
 148                         Pop();
 149                 }
 150
 151                 public override void OnPointCutDefinition(PointCutDefinition pointcut)
 152                 {
 153                         Push( Document.CreateNode(XmlNodeType.Element, "pointcut", null) );
 154
 155                         XmlAttribute att = Document.CreateAttribute("symbol");
 156                         att.Value = pointcut.Flags.ToString();
 157                         Current.Attributes.Append( att );
 158
 159                         Push( Document.CreateNode(XmlNodeType.Element, "signature", null) );
 160                         Current.InnerText = pointcut.Method.ToString();
 161                         Pop();
 162
 163                         base.OnPointCutDefinition (pointcut);
 164                         Pop();
 165                 }
 166
 167                 private void SerializeTargetType( TargetTypeDefinition def )
 168                 {
 169                         Push( Document.CreateNode(XmlNodeType.Element, "singletype", null) );
 170                         SerializeTypeReference( def.SingleType );
 171                         Pop();
 172                 }
 173
 174                 private void SerializeTypeReference(TypeReference def)
 175                 {
 176                         XmlAttribute att = Document.CreateAttribute("type");
 177
 178                         if (def.TargetType == TargetTypeEnum.Link)
 179                         {
 180                                 att.Value = def.LinkRef;
 181                         }
 182                         else
 183                         {
 184                                 att.Value = def.TypeName;
 185                         }
 186                         Current.Attributes.Append( att );
 187
 188                         att = Document.CreateAttribute("refTypeEnum");
 189                         att.Value = def.TargetType.ToString();
 190                         Current.Attributes.Append( att );
 191
 192                         SerializeAssemblyReference(def.AssemblyReference);
 193                 }
 194
 195                 private void SerializeAssemblyReference(AssemblyReference def)
 196                 {
 197                         if (def == null) return;
 198
 199                         XmlAttribute att = Document.CreateAttribute("assembly");
 200                         att.Value = def.AssemblyName;
 201                         Current.Attributes.Append( att );
 202                 }
 203         }
 204 }