mcs/class/System.Web/System.Web.Compilation/TemplateControlCompiler.cs

   1 //
   2 // System.Web.Compilation.TemplateControlCompiler
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc (http://www.ximian.com)
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System;
  31 using System.CodeDom;
  32 using System.Collections;
  33 using System.ComponentModel;
  34 using System.Drawing;
  35 using System.Globalization;
  36 using System.Reflection;
  37 using System.Text;
  38 using System.Web;
  39 using System.Web.UI;
  40 using System.Web.UI.WebControls;
  41 using System.Web.Util;
  42 using System.ComponentModel.Design.Serialization;
  43 #if NET_2_0
  44 using System.Configuration;
  45 using System.Collections.Specialized;
  46 using System.Collections.Generic;
  47 using System.Text.RegularExpressions;
  48 using System.Web.Configuration;
  49 #endif
  50
  51 namespace System.Web.Compilation
  52 {
  53         class TemplateControlCompiler : BaseCompiler
  54         {
  55                 static BindingFlags noCaseFlags = BindingFlags.Public | BindingFlags.NonPublic |
  56                                                   BindingFlags.Instance | BindingFlags.IgnoreCase;
  57
  58                 TemplateControlParser parser;
  59                 int dataBoundAtts;
  60                 ILocation currentLocation;
  61
  62                 static TypeConverter colorConverter;
  63
  64                 internal static CodeVariableReferenceExpression ctrlVar = new CodeVariableReferenceExpression ("__ctrl");
  65
  66 #if NET_2_0
  67                 static Regex bindRegex = new Regex (@"Bind\s*\(""(.*?)""\)\s*%>", RegexOptions.Compiled | RegexOptions.IgnoreCase);
  68 #endif
  69
  70                 public TemplateControlCompiler (TemplateControlParser parser)
  71                         : base (parser)
  72                 {
  73                         this.parser = parser;
  74                 }
  75
  76                 protected void EnsureID (ControlBuilder builder)
  77                 {
  78                         if (builder.ID == null || builder.ID.Trim () == "")
  79                                 builder.ID = builder.GetNextID (null);
  80                 }
  81
  82                 void CreateField (ControlBuilder builder, bool check)
  83                 {
  84                         if (builder == null || builder.ID == null || builder.ControlType == null)
  85                                 return;
  86 #if NET_2_0
  87                         if (partialNameOverride [builder.ID] != null)
  88                                 return;
  89 #endif
  90                         MemberAttributes ma = MemberAttributes.Family;
  91                         currentLocation = builder.location;
  92                         if (check && CheckBaseFieldOrProperty (builder.ID, builder.ControlType, ref ma))
  93                                 return; // The field or property already exists in a base class and is accesible.
  94
  95                         CodeMemberField field;
  96                         field = new CodeMemberField (builder.ControlType.FullName, builder.ID);
  97                         field.Attributes = ma;
  98 #if NET_2_0
  99                         if (partialClass != null)
 100                                 partialClass.Members.Add (field);
 101                         else
 102 #endif
 103                                 mainClass.Members.Add (field);
 104                 }
 105
 106                 bool CheckBaseFieldOrProperty (string id, Type type, ref MemberAttributes ma)
 107                 {
 108                         FieldInfo fld = parser.BaseType.GetField (id, noCaseFlags);
 109
 110                         Type other = null;
 111                         if (fld == null || fld.IsPrivate) {
 112                                 PropertyInfo prop = parser.BaseType.GetProperty (id, noCaseFlags);
 113                                 if (prop != null) {
 114                                         MethodInfo setm = prop.GetSetMethod (true);
 115                                         if (setm != null)
 116                                                 other = prop.PropertyType;
 117                                 }
 118                         } else {
 119                                 other = fld.FieldType;
 120                         }
 121
 122                         if (other == null)
 123                                 return false;
 124
 125                         if (!other.IsAssignableFrom (type)) {
 126 #if NET_2_0
 127                                 ma |= MemberAttributes.New;
 128                                 return false;
 129 #else
 130                                 string msg = String.Format ("The base class includes the field '{0}', but its " +
 131                                                             "type '{1}' is not compatible with {2}",
 132                                                             id, other, type);
 133                                 throw new ParseException (currentLocation, msg);
 134 #endif
 135                         }
 136
 137                         return true;
 138                 }
 139
 140                 void AddParsedSubObjectStmt (ControlBuilder builder, CodeExpression expr)
 141                 {
 142                         if (!builder.haveParserVariable) {
 143                                 CodeVariableDeclarationStatement p = new CodeVariableDeclarationStatement();
 144                                 p.Name = "__parser";
 145                                 p.Type = new CodeTypeReference (typeof (IParserAccessor));
 146                                 p.InitExpression = new CodeCastExpression (typeof (IParserAccessor), ctrlVar);
 147                                 builder.methodStatements.Add (p);
 148                                 builder.haveParserVariable = true;
 149                         }
 150
 151                         CodeVariableReferenceExpression var = new CodeVariableReferenceExpression ("__parser");
 152                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (var, "AddParsedSubObject");
 153                         invoke.Parameters.Add (expr);
 154                         builder.methodStatements.Add (invoke);
 155                 }
 156
 157                 void InitMethod (ControlBuilder builder, bool isTemplate, bool childrenAsProperties)
 158                 {
 159                         string tailname = ((builder is RootBuilder) ? "Tree" : ("_" + builder.ID));
 160                         CodeMemberMethod method = new CodeMemberMethod ();
 161                         builder.method = method;
 162                         builder.methodStatements = method.Statements;
 163
 164                         method.Name = "__BuildControl" + tailname;
 165                         method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
 166                         Type type = builder.ControlType;
 167
 168                         /* in the case this is the __BuildControlTree
 169                          * method, allow subclasses to insert control
 170                          * specific code. */
 171                         if (builder is RootBuilder) {
 172 #if NET_2_0
 173                                 SetCustomAttributes (method);
 174 #endif
 175                                 AddStatementsToInitMethod (method);
 176                         }
 177
 178                         if (builder.HasAspCode) {
 179                                 CodeMemberMethod renderMethod = new CodeMemberMethod ();
 180                                 builder.renderMethod = renderMethod;
 181                                 renderMethod.Name = "__Render" + tailname;
 182                                 renderMethod.Attributes = MemberAttributes.Private | MemberAttributes.Final;
 183                                 CodeParameterDeclarationExpression arg1 = new CodeParameterDeclarationExpression ();
 184                                 arg1.Type = new CodeTypeReference (typeof (HtmlTextWriter));
 185                                 arg1.Name = "__output";
 186                                 CodeParameterDeclarationExpression arg2 = new CodeParameterDeclarationExpression ();
 187                                 arg2.Type = new CodeTypeReference (typeof (Control));
 188                                 arg2.Name = "parameterContainer";
 189                                 renderMethod.Parameters.Add (arg1);
 190                                 renderMethod.Parameters.Add (arg2);
 191                                 mainClass.Members.Add (renderMethod);
 192                         }
 193
 194                         if (childrenAsProperties || builder.ControlType == null) {
 195                                 string typeString;
 196                                 if (builder is RootBuilder)
 197                                         typeString = parser.ClassName;
 198                                 else {
 199                                         if (builder.ControlType != null && builder.isProperty &&
 200                                             !typeof (ITemplate).IsAssignableFrom (builder.ControlType))
 201                                                 typeString = builder.ControlType.FullName;
 202                                         else
 203                                                 typeString = "System.Web.UI.Control";
 204                                 }
 205
 206                                 method.Parameters.Add (new CodeParameterDeclarationExpression (typeString, "__ctrl"));
 207                         } else {
 208
 209                                 if (typeof (Control).IsAssignableFrom (type))
 210                                         method.ReturnType = new CodeTypeReference (typeof (Control));
 211
 212                                 // _ctrl = new $controlType ($parameters);
 213                                 //
 214                                 CodeObjectCreateExpression newExpr = new CodeObjectCreateExpression (type);
 215
 216                                 object [] atts = type.GetCustomAttributes (typeof (ConstructorNeedsTagAttribute), true);
 217                                 if (atts != null && atts.Length > 0) {
 218                                         ConstructorNeedsTagAttribute att = (ConstructorNeedsTagAttribute) atts [0];
 219                                         if (att.NeedsTag)
 220                                                 newExpr.Parameters.Add (new CodePrimitiveExpression (builder.TagName));
 221                                 } else if (builder is DataBindingBuilder) {
 222                                         newExpr.Parameters.Add (new CodePrimitiveExpression (0));
 223                                         newExpr.Parameters.Add (new CodePrimitiveExpression (1));
 224                                 }
 225
 226                                 method.Statements.Add (new CodeVariableDeclarationStatement (builder.ControlType, "__ctrl"));
 227                                 CodeAssignStatement assign = new CodeAssignStatement ();
 228                                 assign.Left = ctrlVar;
 229                                 assign.Right = newExpr;
 230                                 method.Statements.Add (assign);
 231
 232                                 // this.$builderID = _ctrl;
 233                                 //
 234                                 CodeFieldReferenceExpression builderID = new CodeFieldReferenceExpression ();
 235                                 builderID.TargetObject = thisRef;
 236                                 builderID.FieldName = builder.ID;
 237                                 assign = new CodeAssignStatement ();
 238                                 assign.Left = builderID;
 239                                 assign.Right = ctrlVar;
 240                                 method.Statements.Add (assign);
 241                                 if (typeof (UserControl).IsAssignableFrom (type)) {
 242                                         CodeMethodReferenceExpression mref = new CodeMethodReferenceExpression ();
 243                                         mref.TargetObject = builderID;
 244                                         mref.MethodName = "InitializeAsUserControl";
 245                                         CodeMethodInvokeExpression initAsControl = new CodeMethodInvokeExpression (mref);
 246                                         initAsControl.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
 247                                         method.Statements.Add (initAsControl);
 248                                 }
 249
 250 #if NET_2_0
 251                                 // _ctrl.SkinID = $value
 252                                 // _ctrl.ApplyStyleSheetSkin (this);
 253                                 //
 254                                 // the SkinID assignment needs to come
 255                                 // before the call to
 256                                 // ApplyStyleSheetSkin, for obvious
 257                                 // reasons.  We skip SkinID in
 258                                 // CreateAssignStatementsFromAttributes
 259                                 // below.
 260                                 //
 261                                 if (builder.attribs != null) {
 262                                         string skinid = builder.attribs ["skinid"] as string;
 263                                         if (skinid != null)
 264                                                 CreateAssignStatementFromAttribute (builder, "skinid");
 265                                 }
 266                                 if (typeof (WebControl).IsAssignableFrom (type)) {
 267                                         CodeMethodInvokeExpression applyStyleSheetSkin = new CodeMethodInvokeExpression (ctrlVar, "ApplyStyleSheetSkin");
 268                                         if (typeof (Page).IsAssignableFrom (parser.BaseType))
 269                                                 applyStyleSheetSkin.Parameters.Add (thisRef);
 270                                         else
 271                                                 applyStyleSheetSkin.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
 272                                         method.Statements.Add (applyStyleSheetSkin);
 273                                 }
 274 #endif
 275
 276 #if NET_2_0
 277                                 if (typeof (ContentPlaceHolder).IsAssignableFrom (type)) {
 278                                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (thisRef, "ContentPlaceHolders");
 279                                         CodeMethodInvokeExpression addPlaceholder = new CodeMethodInvokeExpression (prop, "Add");
 280                                         addPlaceholder.Parameters.Add (ctrlVar);
 281                                         method.Statements.Add (addPlaceholder);
 282
 283
 284                                         CodeConditionStatement condStatement;
 285
 286                                         // Add the __Template_* field
 287                                         CodeMemberField fld = new CodeMemberField (typeof (ITemplate), "__Template_" + builder.ID);
 288                                         fld.Attributes = MemberAttributes.Private;
 289                                         mainClass.Members.Add (fld);
 290
 291                                         CodeFieldReferenceExpression templateID = new CodeFieldReferenceExpression ();
 292                                         templateID.TargetObject = thisRef;
 293                                         templateID.FieldName = "__Template_" + builder.ID;
 294
 295                                         // if ((this.ContentTemplates != null)) {
 296                                         //      this.__Template_$builder.ID = ((System.Web.UI.ITemplate)(this.ContentTemplates["$builder.ID"]));
 297                                         // }
 298                                         //
 299                                         CodeFieldReferenceExpression contentTemplates = new CodeFieldReferenceExpression ();
 300                                         contentTemplates.TargetObject = thisRef;
 301                                         contentTemplates.FieldName = "ContentTemplates";
 302
 303                                         CodeIndexerExpression indexer = new CodeIndexerExpression ();
 304                                         indexer.TargetObject = new CodePropertyReferenceExpression (thisRef, "ContentTemplates");
 305                                         indexer.Indices.Add (new CodePrimitiveExpression (builder.ID));
 306
 307                                         assign = new CodeAssignStatement ();
 308                                         assign.Left = templateID;
 309                                         assign.Right = new CodeCastExpression (new CodeTypeReference (typeof (ITemplate)), indexer);
 310
 311                                         condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (contentTemplates,
 312                                                                                                                       CodeBinaryOperatorType.IdentityInequality,
 313                                                                                                                       new CodePrimitiveExpression (null)),
 314                                                                                     assign);
 315
 316                                         method.Statements.Add (condStatement);
 317
 318                                         // if ((this.__Template_mainContent != null)) {
 319                                         //      this.__Template_mainContent.InstantiateIn(__ctrl);
 320                                         // }
 321                                         // and also set things up such that any additional code ends up in:
 322                                         // else {
 323                                         //      ...
 324                                         // }
 325                                         //
 326                                         CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
 327                                         methodRef.TargetObject = templateID;
 328                                         methodRef.MethodName = "InstantiateIn";
 329
 330                                         CodeMethodInvokeExpression instantiateInInvoke;
 331                                         instantiateInInvoke = new CodeMethodInvokeExpression (methodRef, ctrlVar);
 332
 333                                         condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (templateID,
 334                                                                                                                       CodeBinaryOperatorType.IdentityInequality,
 335                                                                                                                       new CodePrimitiveExpression (null)),
 336                                                                                     new CodeExpressionStatement (instantiateInInvoke));
 337                                         method.Statements.Add (condStatement);
 338
 339                                         // this is the bit that causes the following stuff to end up in the else { }
 340                                         builder.methodStatements = condStatement.FalseStatements;
 341
 342                                         // __ctrl.TemplateControl = this;
 343                                         assign = new CodeAssignStatement ();
 344                                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, "TemplateControl");;
 345                                         assign.Right = thisRef;
 346
 347                                         method.Statements.Add (assign);
 348                                 }
 349 #endif
 350                         }
 351
 352                         mainClass.Members.Add (method);
 353                 }
 354
 355 #if NET_2_0
 356                 void SetCustomAttribute (CodeMemberMethod method, UnknownAttributeDescriptor uad)
 357                 {
 358                         CodeAssignStatement assign = new CodeAssignStatement ();
 359                         assign.Left = new CodePropertyReferenceExpression (
 360                                 new CodeArgumentReferenceExpression("__ctrl"),
 361                                 uad.Info.Name);
 362                         assign.Right = GetExpressionFromString (uad.Value.GetType (), uad.Value.ToString (), uad.Info);
 363
 364                         method.Statements.Add (assign);
 365                 }
 366
 367                 void SetCustomAttributes (CodeMemberMethod method)
 368                 {
 369                         Type baseType = parser.BaseType;
 370                         if (baseType == null)
 371                                 return;
 372
 373                         List <UnknownAttributeDescriptor> attrs = parser.UnknownMainAttributes;
 374                         if (attrs == null || attrs.Count == 0)
 375                                 return;
 376
 377                         foreach (UnknownAttributeDescriptor uad in attrs)
 378                                 SetCustomAttribute (method, uad);
 379                 }
 380 #endif
 381
 382                 protected virtual void AddStatementsToInitMethod (CodeMemberMethod method)
 383                 {
 384                 }
 385
 386                 void AddLiteralSubObject (ControlBuilder builder, string str)
 387                 {
 388                         if (!builder.HasAspCode) {
 389                                 CodeObjectCreateExpression expr;
 390                                 expr = new CodeObjectCreateExpression (typeof (LiteralControl), new CodePrimitiveExpression (str));
 391                                 AddParsedSubObjectStmt (builder, expr);
 392                         } else {
 393                                 CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
 394                                 methodRef.TargetObject = new CodeArgumentReferenceExpression ("__output");
 395                                 methodRef.MethodName = "Write";
 396
 397                                 CodeMethodInvokeExpression expr;
 398                                 expr = new CodeMethodInvokeExpression (methodRef, new CodePrimitiveExpression (str));
 399                                 builder.renderMethod.Statements.Add (expr);
 400                         }
 401                 }
 402
 403                 string TrimDB (string value)
 404                 {
 405                         string str = value.Trim ();
 406                         str = str.Substring (3);
 407                         return str.Substring (0, str.Length - 2);
 408                 }
 409
 410                 string DataBoundProperty (ControlBuilder builder, Type type, string varName, string value)
 411                 {
 412                         value = TrimDB (value);
 413                         CodeMemberMethod method;
 414                         string dbMethodName = builder.method.Name + "_DB_" + dataBoundAtts++;
 415 #if NET_2_0
 416                         bool need_if = false;
 417                         value = value.Trim ();
 418                         if (StrUtils.StartsWith (value, "Bind", true)) {
 419                                 value = "Eval" + value.Substring (4);
 420                                 need_if = true;
 421                         }
 422 #endif
 423
 424                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), builder.ControlType);
 425
 426                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
 427
 428                         // This should be a CodePropertyReferenceExpression for properties... but it works anyway
 429                         CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (targetExpr, varName);
 430
 431                         CodeExpression expr;
 432                         if (type == typeof (string)) {
 433                                 CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
 434                                 CodeTypeReferenceExpression conv = new CodeTypeReferenceExpression (typeof (Convert));
 435                                 tostring.Method = new CodeMethodReferenceExpression (conv, "ToString");
 436                                 tostring.Parameters.Add (new CodeSnippetExpression (value));
 437                                 expr = tostring;
 438                         } else {
 439                                 CodeSnippetExpression snippet = new CodeSnippetExpression (value);
 440                                 expr = new CodeCastExpression (type, snippet);
 441                         }
 442
 443                         CodeAssignStatement assign = new CodeAssignStatement (field, expr);
 444 #if NET_2_0
 445                         if (need_if) {
 446                                 CodeExpression page = new CodePropertyReferenceExpression (thisRef, "Page");
 447                                 CodeExpression left = new CodeMethodInvokeExpression (page, "GetDataItem");
 448                                 CodeBinaryOperatorExpression ce = new CodeBinaryOperatorExpression (left, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
 449                                 CodeConditionStatement ccs = new CodeConditionStatement (ce, assign);
 450                                 method.Statements.Add (ccs);
 451                         }
 452                         else
 453 #endif
 454                                 method.Statements.Add (assign);
 455
 456                         mainClass.Members.Add (method);
 457                         return method.Name;
 458                 }
 459
 460                 void AddCodeForPropertyOrField (ControlBuilder builder, Type type, string var_name, string att, MemberInfo member, bool isDataBound, bool isExpression)
 461                 {
 462                         CodeMemberMethod method = builder.method;
 463                         bool isWritable = IsWritablePropertyOrField (member);
 464                         if (isDataBound && isWritable) {
 465                                 string dbMethodName = DataBoundProperty (builder, type, var_name, att);
 466                                 AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
 467                                 return;
 468                         }
 469 #if NET_2_0
 470                         else if (isExpression && isWritable) {
 471                                 AddExpressionAssign (method, member, type, var_name, att);
 472                                 return;
 473                         }
 474 #endif
 475
 476                         CodeAssignStatement assign = new CodeAssignStatement ();
 477                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, var_name);
 478                         currentLocation = builder.location;
 479                         assign.Right = GetExpressionFromString (type, att, member);
 480
 481                         method.Statements.Add (assign);
 482                 }
 483
 484                 bool IsDataBound (string value)
 485                 {
 486                         if (value == null || value == "")
 487                                 return false;
 488
 489                         string str = value.Trim ();
 490                         return (StrUtils.StartsWith (str, "<%#") && StrUtils.EndsWith (str, "%>"));
 491                 }
 492
 493 #if NET_2_0
 494                 bool IsExpression (string value)
 495                 {
 496                         if (value == null || value == "")
 497                                 return false;
 498                         string str = value.Trim ();
 499                         return (StrUtils.StartsWith (str, "<%$") && StrUtils.EndsWith (str, "%>"));
 500                 }
 501
 502                 void RegisterBindingInfo (ControlBuilder builder, string propName, ref string value)
 503                 {
 504                         string str = value.Trim ();
 505                         str = str.Substring (3).Trim ();        // eats "<%#"
 506                         if (StrUtils.StartsWith (str, "Bind", true)) {
 507                                 Match match = bindRegex.Match (str);
 508                                 if (match.Success) {
 509                                         string bindingName = match.Groups [1].Value;
 510
 511                                         TemplateBuilder templateBuilder = builder.ParentTemplateBuilder;
 512                                         if (templateBuilder == null || templateBuilder.BindingDirection == BindingDirection.OneWay)
 513                                                 throw new HttpException ("Bind expression not allowed in this context.");
 514
 515                                         string id = builder.attribs ["ID"] as string;
 516                                         if (id == null)
 517                                                 throw new HttpException ("Control of type '" + builder.ControlType + "' using two-way binding on property '" + propName + "' must have an ID.");
 518
 519                                         templateBuilder.RegisterBoundProperty (builder.ControlType, propName, id, bindingName);
 520                                 }
 521                         }
 522                 }
 523 #endif
 524
 525                 /*
 526                 static bool InvariantCompare (string a, string b)
 527                 {
 528                         return (0 == String.Compare (a, b, false, CultureInfo.InvariantCulture));
 529                 }
 530                 */
 531
 532                 static bool InvariantCompareNoCase (string a, string b)
 533                 {
 534                         return (0 == String.Compare (a, b, true, CultureInfo.InvariantCulture));
 535                 }
 536
 537                 static MemberInfo GetFieldOrProperty (Type type, string name)
 538                 {
 539                         MemberInfo member = null;
 540                         try {
 541                                 member = type.GetProperty (name, noCaseFlags & ~BindingFlags.NonPublic);
 542                         } catch {}
 543
 544                         if (member != null)
 545                                 return member;
 546
 547                         try {
 548                                 member = type.GetField (name, noCaseFlags & ~BindingFlags.NonPublic);
 549                         } catch {}
 550
 551                         return member;
 552                 }
 553
 554                 static bool IsWritablePropertyOrField (MemberInfo member)
 555                 {
 556                         PropertyInfo pi = member as PropertyInfo;
 557                         if (pi != null)
 558                                 return pi.CanWrite;
 559                         FieldInfo fi = member as FieldInfo;
 560                         if (fi != null)
 561                                 return !fi.IsInitOnly;
 562                         throw new ArgumentException ("Argument must be of PropertyInfo or FieldInfo type", "member");
 563                 }
 564
 565                 bool ProcessPropertiesAndFields (ControlBuilder builder, MemberInfo member, string id,
 566                                                  string attValue, string prefix)
 567                 {
 568                         int hyphen = id.IndexOf ('-');
 569                         bool isPropertyInfo = (member is PropertyInfo);
 570                         bool isDataBound = IsDataBound (attValue);
 571 #if NET_2_0
 572                         bool isExpression = !isDataBound && IsExpression (attValue);
 573 #else
 574                         bool isExpression = false;
 575 #endif
 576                         Type type;
 577                         if (isPropertyInfo) {
 578                                 type = ((PropertyInfo) member).PropertyType;
 579                         } else {
 580                                 type = ((FieldInfo) member).FieldType;
 581                         }
 582
 583                         if (InvariantCompareNoCase (member.Name, id)) {
 584 #if NET_2_0
 585                                 if (isDataBound)
 586                                         RegisterBindingInfo (builder, member.Name, ref attValue);
 587
 588 #endif
 589                                 if (!IsWritablePropertyOrField (member))
 590                                         return false;
 591
 592                                 AddCodeForPropertyOrField (builder, type, member.Name, attValue, member, isDataBound, isExpression);
 593                                 return true;
 594                         }
 595
 596                         if (hyphen == -1)
 597                                 return false;
 598
 599                         string prop_field = id.Replace ("-", ".");
 600                         string [] parts = prop_field.Split (new char [] {'.'});
 601                         int length = parts.Length;
 602                         if (length < 2 || !InvariantCompareNoCase (member.Name, parts [0]))
 603                                 return false;
 604
 605                         if (length > 2) {
 606                                 MemberInfo sub_member = GetFieldOrProperty (type, parts [1]);
 607                                 if (sub_member == null)
 608                                         return false;
 609
 610                                 string new_prefix = prefix + parts [0] + ".";
 611                                 string new_id = id.Substring (hyphen + 1);
 612                                 return ProcessPropertiesAndFields (builder, sub_member, new_id, attValue, new_prefix);
 613                         }
 614
 615                         MemberInfo subpf = GetFieldOrProperty (type, parts [1]);
 616                         if (!(subpf is PropertyInfo))
 617                                 return false;
 618
 619                         PropertyInfo subprop = (PropertyInfo) subpf;
 620                         if (subprop.CanWrite == false)
 621                                 return false;
 622
 623                         bool is_bool = (subprop.PropertyType == typeof (bool));
 624                         if (!is_bool && attValue == null)
 625                                 return false; // Font-Size -> Font-Size="" as html
 626
 627                         string val = attValue;
 628                         if (attValue == null && is_bool)
 629                                 val = "true"; // Font-Bold <=> Font-Bold="true"
 630 #if NET_2_0
 631                         if (isDataBound) RegisterBindingInfo (builder, prefix + member.Name + "." + subprop.Name, ref attValue);
 632 #endif
 633                         AddCodeForPropertyOrField (builder, subprop.PropertyType,
 634                                                    prefix + member.Name + "." + subprop.Name,
 635                                                    val, subprop, isDataBound, isExpression);
 636
 637                         return true;
 638                 }
 639
 640 #if NET_2_0
 641                 void AddExpressionAssign (CodeMemberMethod method, MemberInfo member, Type type, string name, string value)
 642                 {
 643                         CodeAssignStatement assign = new CodeAssignStatement ();
 644                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, name);
 645
 646                         // First let's find the correct expression builder
 647                         string expr = value.Substring (3, value.Length - 5).Trim ();
 648                         int colon = expr.IndexOf (':');
 649                         if (colon == -1)
 650                                 return;
 651                         string prefix = expr.Substring (0, colon).Trim ();
 652
 653                         System.Configuration.Configuration config = WebConfigurationManager.OpenWebConfiguration ("");
 654                         if (config == null)
 655                                 return;
 656                         CompilationSection cs = (CompilationSection)config.GetSection ("system.web/compilation");
 657                         if (cs == null)
 658                                 return;
 659                         if (cs.ExpressionBuilders == null || cs.ExpressionBuilders.Count == 0)
 660                                 return;
 661
 662                         System.Web.Configuration.ExpressionBuilder ceb = cs.ExpressionBuilders[prefix];
 663                         if (ceb == null)
 664                                 return;
 665                         string builderType = ceb.Type;
 666
 667                         Type t;
 668                         try {
 669                                 t = System.Type.GetType (builderType, true);
 670                         } catch (Exception e) {
 671                                 throw new HttpException (
 672                                         String.Format ("Failed to load expression builder type `{0}'", builderType), e);
 673                         }
 674
 675                         if (!typeof (System.Web.Compilation.ExpressionBuilder).IsAssignableFrom (t))
 676                                 throw new HttpException (
 677                                         String.Format (
 678                                                 "Type {0} is not descendant from System.Web.Compilation.ExpressionBuilder",
 679                                                 builderType));
 680
 681                         System.Web.Compilation.ExpressionBuilder eb = null;
 682                         object parsedData;
 683                         ExpressionBuilderContext ctx;
 684
 685                         try {
 686                                 eb = Activator.CreateInstance (t) as System.Web.Compilation.ExpressionBuilder;
 687                                 ctx = new ExpressionBuilderContext (HttpContext.Current.Request.FilePath);
 688                                 parsedData = eb.ParseExpression (expr.Substring (colon + 1).Trim (), type, ctx);
 689                         } catch (Exception e) {
 690                                 throw new HttpException (
 691                                         String.Format ("Failed to create an instance of type `{0}'", builderType), e);
 692                         }
 693
 694                         BoundPropertyEntry bpe = CreateBoundPropertyEntry (member as PropertyInfo, prefix, expr);
 695                         assign.Right = eb.GetCodeExpression (bpe, parsedData, ctx);
 696
 697                         method.Statements.Add (assign);
 698                 }
 699
 700                 BoundPropertyEntry CreateBoundPropertyEntry (PropertyInfo pi, string prefix, string expr)
 701                 {
 702                         if (pi == null)
 703                                 return null;
 704
 705                         BoundPropertyEntry ret = new BoundPropertyEntry ();
 706                         ret.Expression = expr;
 707                         ret.ExpressionPrefix = prefix;
 708                         ret.Generated = false;
 709                         ret.Name = pi.Name;
 710                         ret.PropertyInfo = pi;
 711                         ret.Type = pi.PropertyType;
 712
 713                         return ret;
 714                 }
 715
 716                 void AssignPropertyFromResources (CodeMemberMethod method, MemberInfo mi, string attvalue)
 717                 {
 718                         bool isProperty = mi.MemberType == MemberTypes.Property;
 719                         bool isField = !isProperty && (mi.MemberType == MemberTypes.Field);
 720
 721                         if (!isProperty && !isField || !IsWritablePropertyOrField (mi))
 722                                 return;
 723
 724                         string memberName = mi.Name;
 725                         string resname = String.Format ("{0}.{1}", attvalue, memberName);
 726
 727                         // __ctrl.Text = System.Convert.ToString(HttpContext.GetLocalResourceObject("ButtonResource1.Text"));
 728                         string inputFile = parser.InputFile;
 729                         string physPath = HttpContext.Current.Request.PhysicalApplicationPath;
 730
 731                         if (StrUtils.StartsWith (inputFile, physPath))
 732                                 inputFile = parser.InputFile.Substring (physPath.Length - 1);
 733                          else
 734                                 return;
 735
 736                         object obj = HttpContext.GetLocalResourceObject (inputFile, resname);
 737                         if (obj == null)
 738                                 return;
 739
 740                         Type member_type = null;
 741                         if (isProperty)
 742                                 member_type = ((PropertyInfo)mi).PropertyType;
 743                         else if (isField)
 744                                 member_type = ((FieldInfo)mi).FieldType;
 745                         else
 746                                 return; // an "impossible" case
 747
 748                         Type declaringType = mi.DeclaringType;
 749                         TypeConverter converter = TypeDescriptor.GetProperties (declaringType) [memberName].Converter;
 750                         CodeAssignStatement assign = new CodeAssignStatement ();
 751
 752                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, memberName);
 753                         assign.Right = ResourceExpressionBuilder.CreateGetLocalResourceObject (mi, resname);
 754
 755                         method.Statements.Add (assign);
 756                 }
 757
 758                 void AssignPropertiesFromResources (CodeMemberMethod method, Type controlType, string attvalue)
 759                 {
 760                         // Process all public fields and properties of the control. We don't use GetMembers to make the code
 761                         // faster
 762                         FieldInfo [] fields = controlType.GetFields (
 763                                 BindingFlags.Instance | BindingFlags.Static |
 764                                 BindingFlags.Public | BindingFlags.FlattenHierarchy);
 765                         PropertyInfo [] properties = controlType.GetProperties (
 766                                 BindingFlags.Instance | BindingFlags.Static |
 767                                 BindingFlags.Public | BindingFlags.FlattenHierarchy);
 768
 769                         foreach (FieldInfo fi in fields)
 770                                 AssignPropertyFromResources (method, fi, attvalue);
 771                         foreach (PropertyInfo pi in properties)
 772                                 AssignPropertyFromResources (method, pi, attvalue);
 773                 }
 774
 775                 void AssignPropertiesFromResources (ControlBuilder builder, string attvalue)
 776                 {
 777                         if (attvalue == null || attvalue.Length == 0)
 778                                 return;
 779
 780                         Type controlType = builder.ControlType;
 781                         if (controlType == null)
 782                                 return;
 783
 784                         AssignPropertiesFromResources (builder.method, controlType, attvalue);
 785                 }
 786 #endif
 787
 788                 void AddEventAssign (CodeMemberMethod method, string name, Type type, string value)
 789                 {
 790                         //"__ctrl.{0} += new {1} (this.{2});"
 791                         CodeEventReferenceExpression evtID = new CodeEventReferenceExpression (ctrlVar, name);
 792
 793                         CodeDelegateCreateExpression create;
 794                         create = new CodeDelegateCreateExpression (new CodeTypeReference (type), thisRef, value);
 795
 796                         CodeAttachEventStatement attach = new CodeAttachEventStatement (evtID, create);
 797                         method.Statements.Add (attach);
 798                 }
 799
 800                 void CreateAssignStatementFromAttribute (ControlBuilder builder, string id)
 801                 {
 802                         EventInfo [] ev_info = null;
 803                         Type type = builder.ControlType;
 804
 805                         string attvalue = builder.attribs [id] as string;
 806                         if (id.Length > 2 && id.Substring (0, 2).ToUpper () == "ON"){
 807                                 if (ev_info == null)
 808                                         ev_info = type.GetEvents ();
 809
 810                                 string id_as_event = id.Substring (2);
 811                                 foreach (EventInfo ev in ev_info){
 812                                         if (InvariantCompareNoCase (ev.Name, id_as_event)){
 813                                                 AddEventAssign (builder.method,
 814                                                                 ev.Name,
 815                                                                 ev.EventHandlerType,
 816                                                                 attvalue);
 817
 818                                                 return;
 819                                         }
 820                                 }
 821
 822                         }
 823
 824 #if NET_2_0
 825                         if (id.ToLower () == "meta:resourcekey") {
 826                                 AssignPropertiesFromResources (builder, attvalue);
 827                                 return;
 828                         }
 829 #endif
 830
 831                         int hyphen = id.IndexOf ('-');
 832                         string alt_id = id;
 833                         if (hyphen != -1)
 834                                 alt_id = id.Substring (0, hyphen);
 835
 836                         MemberInfo fop = GetFieldOrProperty (type, alt_id);
 837                         if (fop != null) {
 838                                 if (ProcessPropertiesAndFields (builder, fop, id, attvalue, null))
 839                                         return;
 840                         }
 841
 842                         if (!typeof (IAttributeAccessor).IsAssignableFrom (type))
 843                                 throw new ParseException (builder.location, "Unrecognized attribute: " + id);
 844
 845                         string val;
 846                         CodeMemberMethod method = builder.method;
 847                         bool databound = IsDataBound (attvalue);
 848
 849                         if (databound) {
 850                                 val = attvalue.Substring (3);
 851                                 val = val.Substring (0, val.Length - 2);
 852                                 CreateDBAttributeMethod (builder, id, val);
 853                         } else {
 854                                 CodeCastExpression cast;
 855                                 CodeMethodReferenceExpression methodExpr;
 856                                 CodeMethodInvokeExpression expr;
 857
 858                                 cast = new CodeCastExpression (typeof (IAttributeAccessor), ctrlVar);
 859                                 methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
 860                                 expr = new CodeMethodInvokeExpression (methodExpr);
 861                                 expr.Parameters.Add (new CodePrimitiveExpression (id));
 862                                 expr.Parameters.Add (new CodePrimitiveExpression (attvalue));
 863                                 method.Statements.Add (expr);
 864                         }
 865
 866                 }
 867
 868                 protected void CreateAssignStatementsFromAttributes (ControlBuilder builder)
 869                 {
 870 #if NET_2_0
 871                         bool haveMetaKey = false;
 872 #endif
 873                         this.dataBoundAtts = 0;
 874                         IDictionary atts = builder.attribs;
 875                         if (atts == null || atts.Count == 0)
 876                                 return;
 877
 878                         foreach (string id in atts.Keys) {
 879                                 if (InvariantCompareNoCase (id, "runat"))
 880                                         continue;
 881
 882 #if NET_2_0
 883                                 /* we skip SkinID here as it's assigned in BuildControlTree */
 884                                 if (InvariantCompareNoCase (id, "skinid"))
 885                                         continue;
 886                                 if (InvariantCompareNoCase (id, "meta:resourcekey")) {
 887                                         haveMetaKey = true;
 888                                         continue;
 889                                 }
 890 #endif
 891                                 CreateAssignStatementFromAttribute (builder, id);
 892                         }
 893
 894 #if NET_2_0
 895                         if (haveMetaKey)
 896                                 CreateAssignStatementFromAttribute (builder, "meta:resourcekey");
 897 #endif
 898                 }
 899
 900                 void CreateDBAttributeMethod (ControlBuilder builder, string attr, string code)
 901                 {
 902                         if (code == null || code.Trim () == "")
 903                                 return;
 904
 905                         string id = builder.GetNextID (null);
 906                         string dbMethodName = "__DataBind_" + id;
 907                         CodeMemberMethod method = builder.method;
 908                         AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
 909
 910                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), builder.ControlType);
 911                         CodeCastExpression cast;
 912                         CodeMethodReferenceExpression methodExpr;
 913                         CodeMethodInvokeExpression expr;
 914
 915                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
 916                         cast = new CodeCastExpression (typeof (IAttributeAccessor), targetExpr);
 917                         methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
 918                         expr = new CodeMethodInvokeExpression (methodExpr);
 919                         expr.Parameters.Add (new CodePrimitiveExpression (attr));
 920                         CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
 921                         tostring.Method = new CodeMethodReferenceExpression (
 922                                                         new CodeTypeReferenceExpression (typeof (Convert)),
 923                                                         "ToString");
 924                         tostring.Parameters.Add (new CodeSnippetExpression (code));
 925                         expr.Parameters.Add (tostring);
 926                         method.Statements.Add (expr);
 927                         mainClass.Members.Add (method);
 928                 }
 929
 930                 void AddRenderControl (ControlBuilder builder)
 931                 {
 932                         CodeIndexerExpression indexer = new CodeIndexerExpression ();
 933                         indexer.TargetObject = new CodePropertyReferenceExpression (
 934                                                         new CodeArgumentReferenceExpression ("parameterContainer"),
 935                                                         "Controls");
 936
 937                         indexer.Indices.Add (new CodePrimitiveExpression (builder.renderIndex));
 938
 939                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (indexer, "RenderControl");
 940                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("__output"));
 941                         builder.renderMethod.Statements.Add (invoke);
 942                         builder.renderIndex++;
 943                 }
 944
 945                 protected void AddChildCall (ControlBuilder parent, ControlBuilder child)
 946                 {
 947                         if (parent == null || child == null)
 948                                 return;
 949                         CodeMethodReferenceExpression m = new CodeMethodReferenceExpression (thisRef, child.method.Name);
 950                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (m);
 951
 952                         object [] atts = null;
 953
 954                         if (child.ControlType != null)
 955                                 child.ControlType.GetCustomAttributes (typeof (PartialCachingAttribute), true);
 956                         if (atts != null && atts.Length > 0) {
 957                                 PartialCachingAttribute pca = (PartialCachingAttribute) atts [0];
 958                                 CodeTypeReferenceExpression cc = new CodeTypeReferenceExpression("System.Web.UI.StaticPartialCachingControl");
 959                                 CodeMethodInvokeExpression build = new CodeMethodInvokeExpression (cc, "BuildCachedControl");
 960                                 build.Parameters.Add (new CodeArgumentReferenceExpression("__ctrl"));
 961                                 build.Parameters.Add (new CodePrimitiveExpression (child.ID));
 962 #if NET_1_1
 963                                 if (pca.Shared)
 964                                         build.Parameters.Add (new CodePrimitiveExpression (child.ControlType.GetHashCode ().ToString ()));
 965                                 else
 966 #endif
 967                                         build.Parameters.Add (new CodePrimitiveExpression (Guid.NewGuid ().ToString ()));
 968
 969                                 build.Parameters.Add (new CodePrimitiveExpression (pca.Duration));
 970                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByParams));
 971                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByControls));
 972                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByCustom));
 973                                 build.Parameters.Add (new CodeDelegateCreateExpression (
 974                                                               new CodeTypeReference (typeof (System.Web.UI.BuildMethod)),
 975                                                               thisRef, child.method.Name));
 976
 977                                 parent.methodStatements.Add (build);
 978                                 if (parent.HasAspCode)
 979                                         AddRenderControl (parent);
 980                                 return;
 981                         }
 982
 983                         if (child.isProperty || parent.ChildrenAsProperties) {
 984                                 expr.Parameters.Add (new CodeFieldReferenceExpression (ctrlVar, child.TagName));
 985                                 parent.methodStatements.Add (expr);
 986                                 return;
 987                         }
 988
 989                         parent.methodStatements.Add (expr);
 990                         CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (thisRef, child.ID);
 991                         if (parent.ControlType == null || typeof (IParserAccessor).IsAssignableFrom (parent.ControlType)) {
 992                                 AddParsedSubObjectStmt (parent, field);
 993                         } else {
 994                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (ctrlVar, "Add");
 995                                 invoke.Parameters.Add (field);
 996                                 parent.methodStatements.Add (invoke);
 997                         }
 998
 999                         if (parent.HasAspCode)
1000                                 AddRenderControl (parent);
1001                 }
1002
1003                 void AddTemplateInvocation (CodeMemberMethod method, string name, string methodName)
1004                 {
1005                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1006
1007                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1008                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1009
1010                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1011                         newCompiled.Parameters.Add (newBuild);
1012
1013                         CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1014                         method.Statements.Add (assign);
1015                 }
1016
1017 #if NET_2_0
1018                 void AddBindableTemplateInvocation (CodeMemberMethod method, string name, string methodName, string extractMethodName)
1019                 {
1020                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1021
1022                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1023                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1024
1025                         CodeDelegateCreateExpression newExtract = new CodeDelegateCreateExpression (
1026                                 new CodeTypeReference (typeof (ExtractTemplateValuesMethod)), thisRef, extractMethodName);
1027
1028                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledBindableTemplateBuilder));
1029                         newCompiled.Parameters.Add (newBuild);
1030                         newCompiled.Parameters.Add (newExtract);
1031
1032                         CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1033                         method.Statements.Add (assign);
1034                 }
1035
1036                 string CreateExtractValuesMethod (TemplateBuilder builder)
1037                 {
1038                         CodeMemberMethod method = new CodeMemberMethod ();
1039                         method.Name = "__ExtractValues_" + builder.ID;
1040                         method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
1041                         method.ReturnType = new CodeTypeReference (typeof(IOrderedDictionary));
1042
1043                         CodeParameterDeclarationExpression arg = new CodeParameterDeclarationExpression ();
1044                         arg.Type = new CodeTypeReference (typeof (Control));
1045                         arg.Name = "__container";
1046                         method.Parameters.Add (arg);
1047                         mainClass.Members.Add (method);
1048
1049                         CodeObjectCreateExpression newTable = new CodeObjectCreateExpression ();
1050                         newTable.CreateType = new CodeTypeReference (typeof(OrderedDictionary));
1051                         method.Statements.Add (new CodeVariableDeclarationStatement (typeof(OrderedDictionary), "__table", newTable));
1052                         CodeVariableReferenceExpression tableExp = new CodeVariableReferenceExpression ("__table");
1053
1054                         if (builder.Bindings != null) {
1055                                 Hashtable hash = new Hashtable ();
1056                                 foreach (TemplateBinding binding in builder.Bindings) {
1057                                         CodeConditionStatement sif;
1058                                         CodeVariableReferenceExpression control;
1059                                         CodeAssignStatement assign;
1060
1061                                         if (hash [binding.ControlId] == null) {
1062
1063                                                 CodeVariableDeclarationStatement dec = new CodeVariableDeclarationStatement (binding.ControlType, binding.ControlId);
1064                                                 method.Statements.Add (dec);
1065                                                 CodeVariableReferenceExpression cter = new CodeVariableReferenceExpression ("__container");
1066                                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (cter, "FindControl");
1067                                                 invoke.Parameters.Add (new CodePrimitiveExpression (binding.ControlId));
1068
1069                                                 assign = new CodeAssignStatement ();
1070                                                 control = new CodeVariableReferenceExpression (binding.ControlId);
1071                                                 assign.Left = control;
1072                                                 assign.Right = new CodeCastExpression (binding.ControlType, invoke);
1073                                                 method.Statements.Add (assign);
1074
1075                                                 sif = new CodeConditionStatement ();
1076                                                 sif.Condition = new CodeBinaryOperatorExpression (control, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
1077
1078                                                 method.Statements.Add (sif);
1079
1080                                                 hash [binding.ControlId] = sif;
1081                                         }
1082
1083                                         sif = (CodeConditionStatement) hash [binding.ControlId];
1084                                         control = new CodeVariableReferenceExpression (binding.ControlId);
1085                                         assign = new CodeAssignStatement ();
1086                                         assign.Left = new CodeIndexerExpression (tableExp, new CodePrimitiveExpression (binding.FieldName));
1087                                         assign.Right = new CodePropertyReferenceExpression (control, binding.ControlProperty);
1088                                         sif.TrueStatements.Add (assign);
1089                                 }
1090                         }
1091
1092                         method.Statements.Add (new CodeMethodReturnStatement (tableExp));
1093                         return method.Name;
1094                 }
1095
1096                 void AddContentTemplateInvocation (ContentBuilderInternal cbuilder, CodeMemberMethod method, string methodName)
1097                 {
1098                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1099                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1100
1101                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1102                         newCompiled.Parameters.Add (newBuild);
1103
1104                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (thisRef, "AddContentTemplate");
1105                         invoke.Parameters.Add (new CodePrimitiveExpression (cbuilder.ContentPlaceHolderID));
1106                         invoke.Parameters.Add (newCompiled);
1107
1108                         method.Statements.Add (invoke);
1109                 }
1110 #endif
1111
1112                 void AddCodeRender (ControlBuilder parent, CodeRenderBuilder cr)
1113                 {
1114                         if (cr.Code == null || cr.Code.Trim () == "")
1115                                 return;
1116
1117                         if (!cr.IsAssign) {
1118                                 CodeSnippetStatement code = new CodeSnippetStatement (cr.Code);
1119                                 parent.renderMethod.Statements.Add (code);
1120                                 return;
1121                         }
1122
1123                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression ();
1124                         expr.Method = new CodeMethodReferenceExpression (
1125                                                         new CodeArgumentReferenceExpression ("__output"),
1126                                                         "Write");
1127
1128                         expr.Parameters.Add (new CodeSnippetExpression (cr.Code));
1129                         parent.renderMethod.Statements.Add (expr);
1130                 }
1131
1132                 static Type GetContainerType (ControlBuilder builder)
1133                 {
1134                         TemplateBuilder tb = builder as TemplateBuilder;
1135                         if (tb != null && tb.ContainerType != null)
1136                                 return tb.ContainerType;
1137
1138                         Type type = builder.BindingContainerType;
1139
1140                         PropertyInfo prop = type.GetProperty ("Items", noCaseFlags & ~BindingFlags.NonPublic);
1141                         if (prop == null)
1142                                 return type;
1143
1144                         Type ptype = prop.PropertyType;
1145                         if (!typeof (ICollection).IsAssignableFrom (ptype))
1146                                 return type;
1147
1148                         prop = ptype.GetProperty ("Item", noCaseFlags & ~BindingFlags.NonPublic);
1149                         if (prop == null)
1150                                 return type;
1151
1152                         return prop.PropertyType;
1153                 }
1154
1155                 CodeMemberMethod CreateDBMethod (string name, Type container, Type target)
1156                 {
1157                         CodeMemberMethod method = new CodeMemberMethod ();
1158                         method.Attributes = MemberAttributes.Public | MemberAttributes.Final;
1159                         method.Name = name;
1160                         method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (object), "sender"));
1161                         method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (EventArgs), "e"));
1162
1163                         CodeTypeReference containerRef = new CodeTypeReference (container);
1164                         CodeTypeReference targetRef = new CodeTypeReference (target);
1165
1166                         CodeVariableDeclarationStatement decl = new CodeVariableDeclarationStatement();
1167                         decl.Name = "Container";
1168                         decl.Type = containerRef;
1169                         method.Statements.Add (decl);
1170
1171                         decl = new CodeVariableDeclarationStatement();
1172                         decl.Name = "target";
1173                         decl.Type = targetRef;
1174                         method.Statements.Add (decl);
1175
1176                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1177                         CodeAssignStatement assign = new CodeAssignStatement ();
1178                         assign.Left = targetExpr;
1179                         assign.Right = new CodeCastExpression (targetRef, new CodeArgumentReferenceExpression ("sender"));
1180                         method.Statements.Add (assign);
1181
1182                         assign = new CodeAssignStatement ();
1183                         assign.Left = new CodeVariableReferenceExpression ("Container");
1184                         assign.Right = new CodeCastExpression (containerRef,
1185                                                 new CodePropertyReferenceExpression (targetExpr, "BindingContainer"));
1186                         method.Statements.Add (assign);
1187
1188                         return method;
1189                 }
1190
1191                 void AddDataBindingLiteral (ControlBuilder builder, DataBindingBuilder db)
1192                 {
1193                         if (db.Code == null || db.Code.Trim () == "")
1194                                 return;
1195
1196                         EnsureID (db);
1197                         CreateField (db, false);
1198
1199                         string dbMethodName = "__DataBind_" + db.ID;
1200                         // Add the method that builds the DataBoundLiteralControl
1201                         InitMethod (db, false, false);
1202                         CodeMemberMethod method = db.method;
1203                         AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
1204                         method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1205
1206                         // Add the DataBind handler
1207                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), typeof (DataBoundLiteralControl));
1208
1209                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1210                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1211                         invoke.Method = new CodeMethodReferenceExpression (targetExpr, "SetDataBoundString");
1212                         invoke.Parameters.Add (new CodePrimitiveExpression (0));
1213
1214                         CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
1215                         tostring.Method = new CodeMethodReferenceExpression (
1216                                                         new CodeTypeReferenceExpression (typeof (Convert)),
1217                                                         "ToString");
1218                         tostring.Parameters.Add (new CodeSnippetExpression (db.Code));
1219                         invoke.Parameters.Add (tostring);
1220                         method.Statements.Add (invoke);
1221
1222                         mainClass.Members.Add (method);
1223
1224                         AddChildCall (builder, db);
1225                 }
1226
1227                 void FlushText (ControlBuilder builder, StringBuilder sb)
1228                 {
1229                         if (sb.Length > 0) {
1230                                 AddLiteralSubObject (builder, sb.ToString ());
1231                                 sb.Length = 0;
1232                         }
1233                 }
1234
1235                 protected void CreateControlTree (ControlBuilder builder, bool inTemplate, bool childrenAsProperties)
1236                 {
1237                         EnsureID (builder);
1238                         bool isTemplate = (typeof (TemplateBuilder).IsAssignableFrom (builder.GetType ()));
1239                         if (!isTemplate && !inTemplate) {
1240                                 CreateField (builder, true);
1241                         } else if (!isTemplate) {
1242                                 builder.ID = builder.GetNextID (null);
1243                                 CreateField (builder, false);
1244                         }
1245
1246                         InitMethod (builder, isTemplate, childrenAsProperties);
1247                         if (!isTemplate || builder.GetType () == typeof (RootBuilder))
1248                                 CreateAssignStatementsFromAttributes (builder);
1249
1250                         if (builder.Children != null && builder.Children.Count > 0) {
1251                                 ArrayList templates = null;
1252
1253                                 StringBuilder sb = new StringBuilder ();
1254                                 foreach (object b in builder.Children) {
1255
1256                                         if (b is string) {
1257                                                 sb.Append ((string) b);
1258                                                 continue;
1259                                         }
1260
1261                                         FlushText (builder, sb);
1262                                         if (b is ObjectTagBuilder) {
1263                                                 ProcessObjectTag ((ObjectTagBuilder) b);
1264                                                 continue;
1265                                         }
1266
1267                                         StringPropertyBuilder pb = b as StringPropertyBuilder;
1268                                         if (pb != null){
1269                                                 if (pb.Children != null && pb.Children.Count > 0) {
1270                                                         StringBuilder asb = new StringBuilder ();
1271                                                         foreach (string s in pb.Children)
1272                                                                 asb.Append (s);
1273                                                         CodeMemberMethod method = builder.method;
1274                                                         CodeAssignStatement assign = new CodeAssignStatement ();
1275                                                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, pb.PropertyName);
1276                                                         assign.Right = new CodePrimitiveExpression (asb.ToString ());
1277                                                         method.Statements.Add (assign);
1278                                                 }
1279                                                 continue;
1280                                         }
1281
1282 #if NET_2_0
1283                                         if (b is ContentBuilderInternal) {
1284                                                 ContentBuilderInternal cb = (ContentBuilderInternal) b;
1285                                                 CreateControlTree (cb, false, true);
1286                                                 AddContentTemplateInvocation (cb, builder.method, cb.method.Name);
1287                                                 continue;
1288                                         }
1289 #endif
1290
1291                                         if (b is TemplateBuilder) {
1292                                                 if (templates == null)
1293                                                         templates = new ArrayList ();
1294
1295                                                 templates.Add (b);
1296                                                 continue;
1297                                         }
1298
1299                                         if (b is CodeRenderBuilder) {
1300                                                 AddCodeRender (builder, (CodeRenderBuilder) b);
1301                                                 continue;
1302                                         }
1303
1304                                         if (b is DataBindingBuilder) {
1305                                                 AddDataBindingLiteral (builder, (DataBindingBuilder) b);
1306                                                 continue;
1307                                         }
1308
1309                                         if (b is ControlBuilder) {
1310                                                 ControlBuilder child = (ControlBuilder) b;
1311                                                 CreateControlTree (child, inTemplate, builder.ChildrenAsProperties);
1312                                                 AddChildCall (builder, child);
1313                                                 continue;
1314                                         }
1315
1316                                         throw new Exception ("???");
1317                                 }
1318
1319                                 FlushText (builder, sb);
1320
1321                                 if (templates != null) {
1322                                         foreach (TemplateBuilder b in templates) {
1323                                                 CreateControlTree (b, true, false);
1324 #if NET_2_0
1325                                                 if (b.BindingDirection == BindingDirection.TwoWay) {
1326                                                         string extractMethod = CreateExtractValuesMethod (b);
1327                                                         AddBindableTemplateInvocation (builder.method, b.TagName, b.method.Name, extractMethod);
1328                                                 }
1329                                                 else
1330 #endif
1331                                                 AddTemplateInvocation (builder.method, b.TagName, b.method.Name);
1332                                         }
1333                                 }
1334
1335                         }
1336
1337                         if (builder.defaultPropertyBuilder != null) {
1338                                 ControlBuilder b = builder.defaultPropertyBuilder;
1339                                 CreateControlTree (b, false, true);
1340                                 AddChildCall (builder, b);
1341                         }
1342
1343                         if (builder.HasAspCode) {
1344                                 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1345                                 m.TargetObject = thisRef;
1346                                 m.MethodName = builder.renderMethod.Name;
1347
1348                                 CodeDelegateCreateExpression create = new CodeDelegateCreateExpression ();
1349                                 create.DelegateType = new CodeTypeReference (typeof (RenderMethod));
1350                                 create.TargetObject = thisRef;
1351                                 create.MethodName = builder.renderMethod.Name;
1352
1353                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1354                                 invoke.Method = new CodeMethodReferenceExpression (ctrlVar, "SetRenderMethodDelegate");
1355                                 invoke.Parameters.Add (create);
1356
1357                                 builder.methodStatements.Add (invoke);
1358                         }
1359
1360                         if (!childrenAsProperties && typeof (Control).IsAssignableFrom (builder.ControlType))
1361                                 builder.method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1362
1363 #if NET_2_0
1364                         if (builder is RootBuilder)
1365                                 if (!String.IsNullOrEmpty (parser.MetaResourceKey))
1366                                         AssignPropertiesFromResources (builder.method, parser.BaseType, parser.MetaResourceKey);
1367 #endif
1368                 }
1369
1370                 protected internal override void CreateMethods ()
1371                 {
1372                         base.CreateMethods ();
1373
1374                         CreateProperties ();
1375                         CreateControlTree (parser.RootBuilder, false, false);
1376                         CreateFrameworkInitializeMethod ();
1377                 }
1378
1379                 void CallBaseFrameworkInitialize (CodeMemberMethod method)
1380                 {
1381                         CodeBaseReferenceExpression baseRef = new CodeBaseReferenceExpression ();
1382                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (baseRef, "FrameworkInitialize");
1383                         method.Statements.Add (invoke);
1384                 }
1385
1386                 void CreateFrameworkInitializeMethod ()
1387                 {
1388                         CodeMemberMethod method = new CodeMemberMethod ();
1389                         method.Name = "FrameworkInitialize";
1390                         method.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1391                         PrependStatementsToFrameworkInitialize (method);
1392                         CallBaseFrameworkInitialize (method);
1393                         AppendStatementsToFrameworkInitialize (method);
1394                         mainClass.Members.Add (method);
1395                 }
1396
1397                 protected virtual void PrependStatementsToFrameworkInitialize (CodeMemberMethod method)
1398                 {
1399                 }
1400
1401                 protected virtual void AppendStatementsToFrameworkInitialize (CodeMemberMethod method)
1402                 {
1403                         if (!parser.EnableViewState) {
1404                                 CodeAssignStatement stmt = new CodeAssignStatement ();
1405                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "EnableViewState");
1406                                 stmt.Right = new CodePrimitiveExpression (false);
1407                                 method.Statements.Add (stmt);
1408                         }
1409
1410                         CodeMethodReferenceExpression methodExpr;
1411                         methodExpr = new CodeMethodReferenceExpression (thisRef, "__BuildControlTree");
1412                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (methodExpr, thisRef);
1413                         method.Statements.Add (new CodeExpressionStatement (expr));
1414                 }
1415
1416                 protected override void AddApplicationAndSessionObjects ()
1417                 {
1418                         foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.ApplicationObjects) {
1419                                 CreateFieldForObject (tag.Type, tag.ObjectID);
1420                                 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, true, false);
1421                         }
1422
1423                         foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.SessionObjects) {
1424                                 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, false, false);
1425                         }
1426                 }
1427
1428                 protected void ProcessObjectTag (ObjectTagBuilder tag)
1429                 {
1430                         string fieldName = CreateFieldForObject (tag.Type, tag.ObjectID);
1431                         CreatePropertyForObject (tag.Type, tag.ObjectID, fieldName, false);
1432                 }
1433
1434                 void CreateProperties ()
1435                 {
1436                         if (!parser.AutoEventWireup) {
1437                                 CreateAutoEventWireup ();
1438                         } else {
1439                                 CreateAutoHandlers ();
1440                         }
1441
1442                         CreateApplicationInstance ();
1443                         CreateTemplateSourceDirectory ();
1444                 }
1445
1446                 void CreateTemplateSourceDirectory ()
1447                 {
1448                         CodeMemberProperty prop = new CodeMemberProperty ();
1449                         prop.Type = new CodeTypeReference (typeof (string));
1450                         prop.Name = "TemplateSourceDirectory";
1451                         prop.Attributes = MemberAttributes.Public | MemberAttributes.Override;
1452
1453 #if NET_2_0
1454                         if (!(parser is MasterPageParser)) {
1455 #endif
1456                                 // if ((this.TemplateControl != null))
1457                                 //   return this.TemplateControl.TemplateSourceDirectory;
1458                                 CodeFieldReferenceExpression parentField = new CodeFieldReferenceExpression ();
1459                                 parentField.TargetObject = thisRef;
1460 #if NET_2_0
1461                                 parentField.FieldName = "TemplateControl";
1462 #else
1463                                 parentField.FieldName = "Parent";
1464 #endif
1465                                 CodeFieldReferenceExpression tsdField = new CodeFieldReferenceExpression ();
1466                                 tsdField.TargetObject = parentField;
1467                                 tsdField.FieldName = "TemplateSourceDirectory";
1468
1469                                 CodeMethodReturnStatement parentRet = new CodeMethodReturnStatement (tsdField);
1470                                 CodeConditionStatement condStatement = new CodeConditionStatement (
1471                                         new CodeBinaryOperatorExpression (parentField,
1472                                                                           CodeBinaryOperatorType.IdentityInequality,
1473                                                                           new CodePrimitiveExpression (null)),
1474                                         parentRet);
1475
1476                                 prop.GetStatements.Add (condStatement);
1477 #if NET_2_0
1478                         }
1479 #endif
1480
1481                         string tsd, bvd = parser.BaseVirtualDir;
1482                         int len = bvd.Length;
1483                         if (len >= 2 && bvd [0] == '~') {
1484                                 if (bvd [1] == '/')
1485                                     tsd = bvd.Substring (1);
1486                                 else
1487                                     tsd = '/' + bvd.Substring (1);
1488                         } else if (len >= 1 && bvd [0] != '/')
1489                                 tsd = '/' + bvd;
1490                         else
1491                                 tsd = bvd;
1492                         CodePrimitiveExpression expr = new CodePrimitiveExpression (tsd);
1493                         prop.GetStatements.Add (new CodeMethodReturnStatement (expr));
1494                         mainClass.Members.Add (prop);
1495                 }
1496
1497                 void CreateApplicationInstance ()
1498                 {
1499                         CodeMemberProperty prop = new CodeMemberProperty ();
1500                         Type appType = typeof (HttpApplication);
1501                         prop.Type = new CodeTypeReference (appType);
1502                         prop.Name = "ApplicationInstance";
1503                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Final;
1504
1505                         CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression (thisRef, "Context");
1506
1507                         propRef = new CodePropertyReferenceExpression (propRef, "ApplicationInstance");
1508
1509                         CodeCastExpression cast = new CodeCastExpression (appType.FullName, propRef);
1510                         prop.GetStatements.Add (new CodeMethodReturnStatement (cast));
1511 #if NET_2_0
1512                         if (partialClass != null)
1513                                 partialClass.Members.Add (prop);
1514                         else
1515 #endif
1516                         mainClass.Members.Add (prop);
1517                 }
1518
1519                 void CreateAutoHandlers ()
1520                 {
1521                         // Create AutoHandlers property
1522                         CodeMemberProperty prop = new CodeMemberProperty ();
1523                         prop.Type = new CodeTypeReference (typeof (int));
1524                         prop.Name = "AutoHandlers";
1525                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1526
1527                         CodeMethodReturnStatement ret = new CodeMethodReturnStatement ();
1528                         CodeFieldReferenceExpression fldRef ;
1529                         fldRef = new CodeFieldReferenceExpression (mainClassExpr, "__autoHandlers");
1530                         ret.Expression = fldRef;
1531                         prop.GetStatements.Add (ret);
1532                         prop.SetStatements.Add (new CodeAssignStatement (fldRef, new CodePropertySetValueReferenceExpression ()));
1533
1534 #if NET_2_0
1535                         CodeAttributeDeclaration attr = new CodeAttributeDeclaration ("System.Obsolete");
1536                         prop.CustomAttributes.Add (attr);
1537 #endif
1538
1539                         mainClass.Members.Add (prop);
1540
1541                         // Add the __autoHandlers field
1542                         CodeMemberField fld = new CodeMemberField (typeof (int), "__autoHandlers");
1543                         fld.Attributes = MemberAttributes.Private | MemberAttributes.Static;
1544                         mainClass.Members.Add (fld);
1545                 }
1546
1547                 void CreateAutoEventWireup ()
1548                 {
1549                         // The getter returns false
1550                         CodeMemberProperty prop = new CodeMemberProperty ();
1551                         prop.Type = new CodeTypeReference (typeof (bool));
1552                         prop.Name = "SupportAutoEvents";
1553                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1554                         prop.GetStatements.Add (new CodeMethodReturnStatement (new CodePrimitiveExpression (false)));
1555                         mainClass.Members.Add (prop);
1556                 }
1557
1558 #if NET_2_0
1559                 protected virtual string HandleUrlProperty (string str, MemberInfo member)
1560                 {
1561                         return str;
1562                 }
1563 #endif
1564
1565                 CodeExpression GetExpressionFromString (Type type, string str, MemberInfo member)
1566                 {
1567 #if NET_2_0
1568                         bool wasNullable = false;
1569
1570                         if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)) {
1571                                 Type[] types = type.GetGenericArguments();
1572                                 type = types[0]; // we're interested only in the first type here
1573                                 wasNullable = true;
1574                         }
1575 #endif
1576
1577                         if (type == typeof (string)) {
1578 #if NET_2_0
1579                                 object[] urlAttr = member.GetCustomAttributes (typeof (UrlPropertyAttribute), true);
1580                                 if (urlAttr.Length != 0)
1581                                         str = HandleUrlProperty (str, member);
1582 #endif
1583                                 return new CodePrimitiveExpression (str);
1584                         }
1585
1586                         if (type == typeof (bool)) {
1587                                 if (str == null || str == "" || InvariantCompareNoCase (str, "true"))
1588                                         return new CodePrimitiveExpression (true);
1589                                 else if (InvariantCompareNoCase (str, "false"))
1590                                         return new CodePrimitiveExpression (false);
1591 #if NET_2_0
1592                                 else if (wasNullable && InvariantCompareNoCase(str, "null"))
1593                                         return new CodePrimitiveExpression (null);
1594 #endif
1595                                 else
1596                                         throw new ParseException (currentLocation,
1597                                                         "Value '" + str  + "' is not a valid boolean.");
1598                         }
1599
1600                         if (str == null)
1601                                 return new CodePrimitiveExpression (null);
1602
1603                         if (type.IsPrimitive)
1604                                 return new CodePrimitiveExpression (Convert.ChangeType (str, type, CultureInfo.InvariantCulture));
1605
1606                         if (type == typeof (string [])) {
1607                                 string [] subs = str.Split (',');
1608                                 CodeArrayCreateExpression expr = new CodeArrayCreateExpression ();
1609                                 expr.CreateType = new CodeTypeReference (typeof (string));
1610                                 foreach (string v in subs) {
1611                                         expr.Initializers.Add (new CodePrimitiveExpression (v.Trim ()));
1612                                 }
1613
1614                                 return expr;
1615                         }
1616
1617                         if (type == typeof (Color)){
1618                                 if (colorConverter == null)
1619                                         colorConverter = TypeDescriptor.GetConverter (typeof (Color));
1620
1621                                 if (str.Trim().Length == 0) {
1622                                         CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (typeof (Color));
1623                                         return new CodeFieldReferenceExpression (ft, "Empty");
1624                                 }
1625
1626                                 Color c;
1627                                 try {
1628                                         if (str.IndexOf (',') == -1) {
1629                                                 c = (Color) colorConverter.ConvertFromString (str);
1630                                         } else {
1631                                                 int [] argb = new int [4];
1632                                                 argb [0] = 255;
1633
1634                                                 string [] parts = str.Split (',');
1635                                                 int length = parts.Length;
1636                                                 if (length < 3)
1637                                                         throw new Exception ();
1638
1639                                                 int basei = (length == 4) ? 0 : 1;
1640                                                 for (int i = length - 1; i >= 0; i--) {
1641                                                         argb [basei + i] = (int) Byte.Parse (parts [i]);
1642                                                 }
1643                                                 c = Color.FromArgb (argb [0], argb [1], argb [2], argb [3]);
1644                                         }
1645                                 } catch (Exception e){
1646                                         // Hack: "LightGrey" is accepted, but only for ASP.NET, as the
1647                                         // TypeConverter for Color fails to ConvertFromString.
1648                                         // Hence this hack...
1649                                         if (InvariantCompareNoCase ("LightGrey", str)) {
1650                                                 c = Color.LightGray;
1651                                         } else {
1652                                                 throw new ParseException (currentLocation,
1653                                                         "Color " + str + " is not a valid color.", e);
1654                                         }
1655                                 }
1656
1657                                 if (c.IsKnownColor){
1658                                         CodeFieldReferenceExpression expr = new CodeFieldReferenceExpression ();
1659                                         if (c.IsSystemColor)
1660                                                 type = typeof (SystemColors);
1661
1662                                         expr.TargetObject = new CodeTypeReferenceExpression (type);
1663                                         expr.FieldName = c.Name;
1664                                         return expr;
1665                                 } else {
1666                                         CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1667                                         m.TargetObject = new CodeTypeReferenceExpression (type);
1668                                         m.MethodName = "FromArgb";
1669                                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
1670                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.A));
1671                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.R));
1672                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.G));
1673                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.B));
1674                                         return invoke;
1675                                 }
1676                         }
1677
1678                         TypeConverter converter = TypeDescriptor.GetProperties (member.DeclaringType) [member.Name].Converter;
1679
1680                         if (converter != null && converter.CanConvertFrom (typeof (string))) {
1681                                 object value = converter.ConvertFromInvariantString (str);
1682
1683                                 if (converter.CanConvertTo (typeof (InstanceDescriptor))) {
1684                                         InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
1685                                         return GenerateInstance (idesc, true);
1686                                 }
1687
1688                                 CodeExpression exp = GenerateObjectInstance (value, false);
1689                                 if (exp != null) return exp;
1690
1691                                 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1692                                 m.TargetObject = new CodeTypeReferenceExpression (typeof (TypeDescriptor));
1693                                 m.MethodName = "GetConverter";
1694                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
1695                                 CodeTypeReference tref = new CodeTypeReference (type);
1696                                 invoke.Parameters.Add (new CodeTypeOfExpression (tref));
1697
1698                                 invoke = new CodeMethodInvokeExpression (invoke, "ConvertFrom");
1699                                 invoke.Parameters.Add (new CodePrimitiveExpression (str));
1700
1701                                 return new CodeCastExpression (tref, invoke);
1702                         }
1703
1704                         Console.WriteLine ("Unknown type: " + type + " value: " + str);
1705
1706                         return new CodePrimitiveExpression (str);
1707                 }
1708
1709                 CodeExpression GenerateInstance (InstanceDescriptor idesc, bool throwOnError)
1710                 {
1711                         CodeExpression[] parameters = new CodeExpression [idesc.Arguments.Count];
1712                         int n = 0;
1713                         foreach (object ob in idesc.Arguments) {
1714                                 CodeExpression exp = GenerateObjectInstance (ob, throwOnError);
1715                                 if (exp == null) return null;
1716                                 parameters [n++] = exp;
1717                         }
1718
1719                         switch (idesc.MemberInfo.MemberType) {
1720                         case MemberTypes.Constructor:
1721                                 CodeTypeReference tob = new CodeTypeReference (idesc.MemberInfo.DeclaringType);
1722                                 return new CodeObjectCreateExpression (tob, parameters);
1723
1724                         case MemberTypes.Method:
1725                                 CodeTypeReferenceExpression mt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1726                                 return new CodeMethodInvokeExpression (mt, idesc.MemberInfo.Name, parameters);
1727
1728                         case MemberTypes.Field:
1729                                 CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1730                                 return new CodeFieldReferenceExpression (ft, idesc.MemberInfo.Name);
1731
1732                         case MemberTypes.Property:
1733                                 CodeTypeReferenceExpression pt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1734                                 return new CodePropertyReferenceExpression (pt, idesc.MemberInfo.Name);
1735                         }
1736                         throw new ParseException (currentLocation, "Invalid instance type.");
1737                 }
1738
1739                 CodeExpression GenerateObjectInstance (object value, bool throwOnError)
1740                 {
1741                         if (value == null)
1742                                 return new CodePrimitiveExpression (null);
1743
1744                         Type t = value.GetType();
1745                         if (t.IsPrimitive || value is string)
1746                                 return new CodePrimitiveExpression (value);
1747
1748                         if (t.IsArray) {
1749                                 Array ar = (Array) value;
1750                                 CodeExpression[] items = new CodeExpression [ar.Length];
1751                                 for (int n=0; n<ar.Length; n++) {
1752                                         CodeExpression exp = GenerateObjectInstance (ar.GetValue (n), throwOnError);
1753                                         if (exp == null) return null;
1754                                         items [n] = exp;
1755                                 }
1756                                 return new CodeArrayCreateExpression (new CodeTypeReference (t), items);
1757                         }
1758
1759                         TypeConverter converter = TypeDescriptor.GetConverter (t);
1760                         if (converter != null && converter.CanConvertTo (typeof (InstanceDescriptor))) {
1761                                 InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
1762                                 return GenerateInstance (idesc, throwOnError);
1763                         }
1764
1765                         InstanceDescriptor desc = GetDefaultInstanceDescriptor (value);
1766                         if (desc != null) return GenerateInstance (desc, throwOnError);
1767
1768                         if (throwOnError)
1769                                 throw new ParseException (currentLocation, "Cannot generate an instance for the type: " + t);
1770                         else
1771                                 return null;
1772                 }
1773
1774                 InstanceDescriptor GetDefaultInstanceDescriptor (object value)
1775                 {
1776                         if (value is System.Web.UI.WebControls.Unit) {
1777                                 System.Web.UI.WebControls.Unit s = (System.Web.UI.WebControls.Unit) value;
1778                                 ConstructorInfo c = typeof(System.Web.UI.WebControls.Unit).GetConstructor (
1779                                         BindingFlags.Instance | BindingFlags.Public,
1780                                         null,
1781                                         new Type[] {typeof(double), typeof(System.Web.UI.WebControls.UnitType)},
1782                                         null);
1783
1784                                 return new InstanceDescriptor (c, new object[] {s.Value, s.Type});
1785                         }
1786
1787                         if (value is System.Web.UI.WebControls.FontUnit) {
1788                                 System.Web.UI.WebControls.FontUnit s = (System.Web.UI.WebControls.FontUnit) value;
1789
1790                                 Type cParamType = null;
1791                                 object cParam = null;
1792
1793                                 switch (s.Type) {
1794                                         case FontSize.AsUnit:
1795                                         case FontSize.NotSet:
1796                                                 cParamType = typeof (System.Web.UI.WebControls.Unit);
1797                                                 cParam = s.Unit;
1798                                                 break;
1799
1800                                         default:
1801                                                 cParamType = typeof (string);
1802                                                 cParam = s.Type.ToString ();
1803                                                 break;
1804                                 }
1805
1806                                 ConstructorInfo c = typeof(System.Web.UI.WebControls.FontUnit).GetConstructor (
1807                                         BindingFlags.Instance | BindingFlags.Public,
1808                                         null,
1809                                         new Type[] {cParamType},
1810                                         null);
1811                                 if (c != null)
1812                                         return new InstanceDescriptor (c, new object[] {cParam});
1813                         }
1814                         return null;
1815                 }
1816         }
1817 }
1818
1819
1820