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

   1 //
   2 // System.Web.Compilation.PageCompiler
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2002,2003 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.Collections.Generic;
  34 using System.IO;
  35 using System.Reflection;
  36 using System.Text;
  37 using System.Web.Configuration;
  38 using System.Web.UI;
  39 using System.Web.SessionState;
  40 using System.Web.Util;
  41 using System.Web.Profile;
  42
  43 namespace System.Web.Compilation
  44 {
  45         class PageCompiler : TemplateControlCompiler
  46         {
  47                 PageParser pageParser;
  48                 static CodeTypeReference intRef = new CodeTypeReference (typeof (int));
  49
  50                 public PageCompiler (PageParser pageParser)
  51                         : base (pageParser)
  52                 {
  53                         this.pageParser = pageParser;
  54                 }
  55
  56                 protected override void CreateStaticFields ()
  57                 {
  58                         base.CreateStaticFields ();
  59
  60                         CodeMemberField fld = new CodeMemberField (typeof (object), "__fileDependencies");
  61                         fld.Attributes = MemberAttributes.Private | MemberAttributes.Static;
  62                         fld.InitExpression = new CodePrimitiveExpression (null);
  63                         mainClass.Members.Add (fld);
  64
  65                         if (pageParser.OutputCache) {
  66                                 fld = new CodeMemberField (typeof (OutputCacheParameters), "__outputCacheSettings");
  67                                 fld.Attributes = MemberAttributes.Private | MemberAttributes.Static;
  68                                 fld.InitExpression = new CodePrimitiveExpression (null);
  69                                 mainClass.Members.Add (fld);
  70                         }
  71                 }
  72
  73                 protected override void CreateConstructor (CodeStatementCollection localVars,
  74                                                            CodeStatementCollection trueStmt)
  75                 {
  76                         if (!String.IsNullOrEmpty (pageParser.MasterPageFile))
  77                                 // This is here just to trigger master page build, so that its type
  78                                 // is available when compiling the page itself.
  79                                 BuildManager.GetCompiledType (pageParser.MasterPageFile);
  80
  81                         if (pageParser.ClientTarget != null) {
  82                                 CodeExpression prop;
  83                                 prop = new CodePropertyReferenceExpression (thisRef, "ClientTarget");
  84                                 CodeExpression ct = new CodePrimitiveExpression (pageParser.ClientTarget);
  85                                 if (localVars == null)
  86                                         localVars = new CodeStatementCollection ();
  87                                 localVars.Add (new CodeAssignStatement (prop, ct));
  88                         }
  89
  90                         ArrayList deps = pageParser.Dependencies;
  91                         int depsCount = deps != null ? deps.Count : 0;
  92
  93                         if (depsCount > 0) {
  94                                 if (localVars == null)
  95                                         localVars = new CodeStatementCollection ();
  96                                 if (trueStmt == null)
  97                                         trueStmt = new CodeStatementCollection ();
  98
  99                                 CodeAssignStatement assign;
 100                                 localVars.Add (
 101                                         new CodeVariableDeclarationStatement (
 102                                                 typeof (string[]),
 103                                                 "dependencies")
 104                                 );
 105
 106                                 CodeVariableReferenceExpression dependencies = new CodeVariableReferenceExpression ("dependencies");
 107                                 trueStmt.Add (
 108                                         new CodeAssignStatement (dependencies, new CodeArrayCreateExpression (typeof (string), depsCount))
 109                                 );
 110
 111                                 CodeArrayIndexerExpression arrayIndex;
 112                                 object o;
 113
 114                                 for (int i = 0; i < depsCount; i++) {
 115                                         o = deps [i];
 116                                         arrayIndex = new CodeArrayIndexerExpression (dependencies, new CodeExpression[] {new CodePrimitiveExpression (i)});
 117                                         assign = new CodeAssignStatement (arrayIndex, new CodePrimitiveExpression (o));
 118                                         trueStmt.Add (assign);
 119                                 }
 120
 121                                 CodeMethodInvokeExpression getDepsCall = new CodeMethodInvokeExpression (
 122                                         thisRef,
 123                                         "GetWrappedFileDependencies",
 124                                         new CodeExpression[] {dependencies}
 125                                 );
 126                                 assign = new CodeAssignStatement (GetMainClassFieldReferenceExpression ("__fileDependencies"), getDepsCall);
 127
 128                                 trueStmt.Add (assign);
 129                         }
 130
 131                         base.CreateConstructor (localVars, trueStmt);
 132                 }
 133
 134                 protected override void AddInterfaces ()
 135                 {
 136                         base.AddInterfaces ();
 137                         CodeTypeReference cref;
 138
 139                         if (pageParser.EnableSessionState) {
 140                                 cref = new CodeTypeReference (typeof (IRequiresSessionState));
 141                                 if (partialClass != null)
 142                                         partialClass.BaseTypes.Add (cref);
 143                                 else
 144                                         mainClass.BaseTypes.Add (cref);
 145                         }
 146
 147                         if (pageParser.ReadOnlySessionState) {
 148                                 cref = new CodeTypeReference (typeof (IReadOnlySessionState));
 149                                 if (partialClass != null)
 150                                         partialClass.BaseTypes.Add (cref);
 151                                 else
 152                                         mainClass.BaseTypes.Add (cref);
 153                         }
 154
 155                         if (pageParser.Async)
 156                                 mainClass.BaseTypes.Add (new CodeTypeReference (typeof (System.Web.IHttpAsyncHandler)));
 157
 158                         mainClass.BaseTypes.Add (new CodeTypeReference (typeof (System.Web.IHttpHandler)));
 159                 }
 160
 161                 void CreateGetTypeHashCode ()
 162                 {
 163                         CodeMemberMethod method = new CodeMemberMethod ();
 164                         method.ReturnType = intRef;
 165                         method.Name = "GetTypeHashCode";
 166                         method.Attributes = MemberAttributes.Public | MemberAttributes.Override;
 167                         Random rnd = new Random (pageParser.InputFile.GetHashCode ());
 168                         method.Statements.Add (new CodeMethodReturnStatement (new CodePrimitiveExpression (rnd.Next ())));
 169                         mainClass.Members.Add (method);
 170                 }
 171
 172                 static CodeExpression GetExpressionForValueAndType (object value, Type valueType)
 173                 {
 174                         // Put short circuit types here
 175                         if (valueType == typeof (TimeSpan)) {
 176                                 CodeMethodReferenceExpression mref = new CodeMethodReferenceExpression (
 177                                         new CodeTypeReferenceExpression (typeof (TimeSpan)),
 178                                         "Parse");
 179
 180                                 return new CodeMethodInvokeExpression (
 181                                         mref,
 182                                         new CodeExpression[] { new CodePrimitiveExpression (((TimeSpan) value).ToString ()) }
 183                                 );
 184                         }
 185
 186                         throw new HttpException (String.Format ("Unable to create assign expression for type '{0}'.", valueType));
 187                 }
 188
 189                 static CodeAssignStatement CreatePropertyAssign (CodeExpression expr, string name, object value)
 190                 {
 191                         CodeExpression rhs;
 192                         if (value == null || value is string)
 193                                 rhs = new CodePrimitiveExpression (value);
 194                         else {
 195                                 Type vt = value.GetType ();
 196
 197                                 if (vt.IsPrimitive)
 198                                         rhs = new CodePrimitiveExpression (value);
 199                                 else
 200                                         rhs = GetExpressionForValueAndType (value, vt);
 201                         }
 202
 203                         return new CodeAssignStatement (new CodePropertyReferenceExpression (expr, name), rhs);
 204                 }
 205
 206                 static CodeAssignStatement CreatePropertyAssign (string name, object value)
 207                 {
 208                         return CreatePropertyAssign (thisRef, name, value);
 209                 }
 210
 211                 void AddStatementsFromDirective (CodeMemberMethod method)
 212                 {
 213                         string responseEncoding = pageParser.ResponseEncoding;
 214                         if (responseEncoding != null)
 215                                 method.Statements.Add (CreatePropertyAssign ("ResponseEncoding", responseEncoding));
 216
 217                         int codepage = pageParser.CodePage;
 218                         if (codepage != -1)
 219                                 method.Statements.Add (CreatePropertyAssign ("CodePage", codepage));
 220
 221                         string contentType = pageParser.ContentType;
 222                         if (contentType != null)
 223                                 method.Statements.Add (CreatePropertyAssign ("ContentType", contentType));
 224
 225                         int lcid = pageParser.LCID;
 226                         if (lcid != -1)
 227                                 method.Statements.Add (CreatePropertyAssign ("LCID", lcid));
 228
 229                         string culture = pageParser.Culture;
 230                         if (culture != null)
 231                                 method.Statements.Add (CreatePropertyAssign ("Culture", culture));
 232
 233                         culture = pageParser.UICulture;
 234                         if (culture != null)
 235                                 method.Statements.Add (CreatePropertyAssign ("UICulture", culture));
 236
 237                         string errorPage = pageParser.ErrorPage;
 238                         if (errorPage != null)
 239                                 method.Statements.Add (CreatePropertyAssign ("ErrorPage", errorPage));
 240
 241                         if (pageParser.HaveTrace) {
 242                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 243                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "TraceEnabled");
 244                                 stmt.Right = new CodePrimitiveExpression (pageParser.Trace);
 245                                 method.Statements.Add (stmt);
 246                         }
 247
 248                         if (pageParser.TraceMode != TraceMode.Default) {
 249                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 250                                 CodeTypeReferenceExpression tm = new CodeTypeReferenceExpression ("System.Web.TraceMode");
 251                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "TraceModeValue");
 252                                 stmt.Right = new CodeFieldReferenceExpression (tm, pageParser.TraceMode.ToString ());
 253                                 method.Statements.Add (stmt);
 254                         }
 255
 256                         if (pageParser.NotBuffer) {
 257                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 258                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "Buffer");
 259                                 stmt.Right = new CodePrimitiveExpression (false);
 260                                 method.Statements.Add (stmt);
 261                         }
 262
 263                         if (!pageParser.EnableEventValidation) {
 264                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 265                                 CodePropertyReferenceExpression prop;
 266                                 prop = new CodePropertyReferenceExpression (thisRef, "EnableEventValidation");
 267                                 stmt.Left = prop;
 268                                 stmt.Right = new CodePrimitiveExpression (pageParser.EnableEventValidation);
 269                                 method.Statements.Add (stmt);
 270                         }
 271
 272                         if (pageParser.MaintainScrollPositionOnPostBack) {
 273                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 274                                 CodePropertyReferenceExpression prop;
 275                                 prop = new CodePropertyReferenceExpression (thisRef, "MaintainScrollPositionOnPostBack");
 276                                 stmt.Left = prop;
 277                                 stmt.Right = new CodePrimitiveExpression (pageParser.MaintainScrollPositionOnPostBack);
 278                                 method.Statements.Add (stmt);
 279                         }
 280                 }
 281
 282                 protected override void AddStatementsToConstructor (CodeConstructor ctor)
 283                 {
 284                         base.AddStatementsToConstructor (ctor);
 285                         if (pageParser.OutputCache)
 286                                 OutputCacheParamsBlock (ctor);
 287                 }
 288
 289                 protected override void AddStatementsToInitMethod (CodeMemberMethod method)
 290                 {
 291                         AddStatementsFromDirective (method);
 292                         ILocation directiveLocation = pageParser.DirectiveLocation;
 293
 294                         CodeArgumentReferenceExpression ctrlVar = new CodeArgumentReferenceExpression("__ctrl");
 295                         if (pageParser.Title != null)
 296                                 method.Statements.Add (AddLinePragma (CreatePropertyAssign (ctrlVar, "Title", pageParser.Title), directiveLocation));
 297
 298                         if (pageParser.MasterPageFile != null)
 299                                 method.Statements.Add (AddLinePragma (CreatePropertyAssign (ctrlVar, "MasterPageFile", pageParser.MasterPageFile), directiveLocation));
 300
 301                         if (pageParser.Theme != null)
 302                                 method.Statements.Add (AddLinePragma (CreatePropertyAssign (ctrlVar, "Theme", pageParser.Theme), directiveLocation));
 303
 304                         if (pageParser.StyleSheetTheme != null)
 305                                 method.Statements.Add (AddLinePragma (CreatePropertyAssign (ctrlVar, "StyleSheetTheme", pageParser.StyleSheetTheme), directiveLocation));
 306
 307                         if (pageParser.Async != false)
 308                                 method.Statements.Add (AddLinePragma (CreatePropertyAssign (ctrlVar, "AsyncMode", pageParser.Async), directiveLocation));
 309
 310                         if (pageParser.AsyncTimeout != -1)
 311                                 method.Statements.Add (AddLinePragma (CreatePropertyAssign (ctrlVar, "AsyncTimeout",
 312                                                                                             TimeSpan.FromSeconds (pageParser.AsyncTimeout)), directiveLocation));
 313
 314                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (thisRef, "InitializeCulture");
 315                         method.Statements.Add (AddLinePragma (new CodeExpressionStatement (expr), directiveLocation));
 316                 }
 317
 318                 protected override void PrependStatementsToFrameworkInitialize (CodeMemberMethod method)
 319                 {
 320                         base.PrependStatementsToFrameworkInitialize (method);
 321                         if (pageParser.StyleSheetTheme != null)
 322                                 method.Statements.Add (CreatePropertyAssign ("StyleSheetTheme", pageParser.StyleSheetTheme));
 323                 }
 324
 325                 protected override void AppendStatementsToFrameworkInitialize (CodeMemberMethod method)
 326                 {
 327                         base.AppendStatementsToFrameworkInitialize (method);
 328
 329                         ArrayList deps = pageParser.Dependencies;
 330                         int depsCount = deps != null ? deps.Count : 0;
 331
 332                         if (depsCount > 0) {
 333                                 CodeFieldReferenceExpression fileDependencies = GetMainClassFieldReferenceExpression ("__fileDependencies");
 334
 335                                 method.Statements.Add (
 336                                         new CodeMethodInvokeExpression (
 337                                                 thisRef,
 338                                                 "AddWrappedFileDependencies",
 339                                                 new CodeExpression[] {fileDependencies})
 340                                 );
 341
 342                         }
 343
 344                         if (pageParser.OutputCache) {
 345                                 CodeMethodReferenceExpression init = new CodeMethodReferenceExpression (thisRef, "InitOutputCache");
 346                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (init, GetMainClassFieldReferenceExpression ("__outputCacheSettings"));
 347                                 method.Statements.Add (invoke);
 348                         }
 349
 350                         if (pageParser.ValidateRequest) {
 351                                 CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression ();
 352                                 CodePropertyReferenceExpression prop;
 353                                 prop = new CodePropertyReferenceExpression (thisRef, "Request");
 354                                 expr.Method = new CodeMethodReferenceExpression (prop, "ValidateInput");
 355                                 method.Statements.Add (expr);
 356                         }
 357                 }
 358
 359                 CodeAssignStatement AssignOutputCacheParameter (CodeVariableReferenceExpression variable, string propName, object value)
 360                 {
 361                         var ret = new CodeAssignStatement ();
 362
 363                         ret.Left = new CodeFieldReferenceExpression (variable, propName);
 364
 365                         if (value is OutputCacheLocation)
 366                                 ret.Right = new CodeFieldReferenceExpression (
 367                                         new CodeTypeReferenceExpression (new CodeTypeReference (typeof (OutputCacheLocation), CodeTypeReferenceOptions.GlobalReference)),
 368                                         value.ToString ()
 369                                 );
 370                         else
 371                                 ret.Right = new CodePrimitiveExpression (value);
 372                         return ret;
 373                 }
 374
 375                 void OutputCacheParamsBlock (CodeMemberMethod method)
 376                 {
 377                         var statements = new List <CodeStatement> ();
 378                         var localSettingsDecl = new CodeVariableDeclarationStatement (typeof (OutputCacheParameters), "outputCacheSettings");
 379                         var localSettings = new CodeVariableReferenceExpression ("outputCacheSettings");
 380
 381                         statements.Add (localSettingsDecl);
 382                         statements.Add (
 383                                 new CodeAssignStatement (
 384                                         localSettings,
 385                                         new CodeObjectCreateExpression (typeof (OutputCacheParameters), new CodeExpression[] {})
 386                                 )
 387                         );
 388
 389                         TemplateParser.OutputCacheParsedParams parsed = pageParser.OutputCacheParsedParameters;
 390                         if ((parsed & TemplateParser.OutputCacheParsedParams.CacheProfile) != 0)
 391                                 statements.Add (AssignOutputCacheParameter (localSettings, "CacheProfile", pageParser.OutputCacheCacheProfile));
 392                         statements.Add (AssignOutputCacheParameter (localSettings, "Duration", pageParser.OutputCacheDuration));
 393                         if ((parsed & TemplateParser.OutputCacheParsedParams.Location) != 0)
 394                                 statements.Add (AssignOutputCacheParameter (localSettings, "Location", pageParser.OutputCacheLocation));
 395                         if ((parsed & TemplateParser.OutputCacheParsedParams.NoStore) != 0)
 396                                 statements.Add (AssignOutputCacheParameter (localSettings, "NoStore", pageParser.OutputCacheNoStore));
 397                         if ((parsed & TemplateParser.OutputCacheParsedParams.SqlDependency) != 0)
 398                                 statements.Add (AssignOutputCacheParameter (localSettings, "SqlDependency", pageParser.OutputCacheSqlDependency));
 399                         if ((parsed & TemplateParser.OutputCacheParsedParams.VaryByContentEncodings) != 0)
 400                                 statements.Add (AssignOutputCacheParameter (localSettings, "VaryByContentEncoding", pageParser.OutputCacheVaryByContentEncodings));
 401                         if ((parsed & TemplateParser.OutputCacheParsedParams.VaryByControl) != 0)
 402                                 statements.Add (AssignOutputCacheParameter (localSettings, "VaryByControl", pageParser.OutputCacheVaryByControls));
 403                         if ((parsed & TemplateParser.OutputCacheParsedParams.VaryByCustom) != 0)
 404                                 statements.Add (AssignOutputCacheParameter (localSettings, "VaryByCustom", pageParser.OutputCacheVaryByCustom));
 405                         if ((parsed & TemplateParser.OutputCacheParsedParams.VaryByHeader) != 0)
 406                                 statements.Add (AssignOutputCacheParameter (localSettings, "VaryByHeader", pageParser.OutputCacheVaryByHeader));
 407                         statements.Add (AssignOutputCacheParameter (localSettings, "VaryByParam", pageParser.OutputCacheVaryByParam));
 408
 409                         CodeFieldReferenceExpression outputCacheSettings = GetMainClassFieldReferenceExpression ("__outputCacheSettings");
 410                         statements.Add (new CodeAssignStatement (outputCacheSettings, localSettings));
 411
 412                         var cond = new CodeConditionStatement (
 413                                 new CodeBinaryOperatorExpression (
 414                                         outputCacheSettings,
 415                                         CodeBinaryOperatorType.IdentityEquality,
 416                                         new CodePrimitiveExpression (null)
 417                                 ),
 418                                 statements.ToArray ()
 419                         );
 420
 421                         method.Statements.Add (cond);
 422                 }
 423
 424                 void CreateStronglyTypedProperty (Type type, string name)
 425                 {
 426                         if (type == null)
 427                                 return;
 428
 429                         CodeMemberProperty mprop = new CodeMemberProperty ();
 430                         mprop.Name = name;
 431                         mprop.Type = new CodeTypeReference (type);
 432                         mprop.Attributes = MemberAttributes.Public | MemberAttributes.New;
 433                         CodeExpression prop = new CodePropertyReferenceExpression (new CodeBaseReferenceExpression (), name);
 434                         prop = new CodeCastExpression (type, prop);
 435                         mprop.GetStatements.Add (new CodeMethodReturnStatement (prop));
 436                         if (partialClass != null)
 437                                 partialClass.Members.Add (mprop);
 438                         else
 439                                 mainClass.Members.Add (mprop);
 440
 441                         AddReferencedAssembly (type.Assembly);
 442                 }
 443
 444                 protected internal override void CreateMethods ()
 445                 {
 446                         base.CreateMethods ();
 447
 448                         CreateProfileProperty ();
 449                         CreateStronglyTypedProperty (pageParser.MasterType, "Master");
 450                         CreateStronglyTypedProperty (pageParser.PreviousPageType, "PreviousPage");
 451                         CreateGetTypeHashCode ();
 452
 453                         if (pageParser.Async)
 454                                 CreateAsyncMethods ();
 455                 }
 456
 457                 void CreateAsyncMethods ()
 458                 {
 459                         CodeMemberMethod method = new CodeMemberMethod ();
 460                         CodeParameterDeclarationExpression arg;
 461                         CodeMethodInvokeExpression invoke;
 462
 463                         // public virtual System.IAsyncResult BeginProcessRequest(System.Web.HttpContext context, System.AsyncCallback cb, object data);
 464                         method.ReturnType = new CodeTypeReference (typeof (IAsyncResult));
 465                         method.Name = "BeginProcessRequest";
 466                         method.Attributes = MemberAttributes.Public;
 467
 468                         arg = new CodeParameterDeclarationExpression ();
 469                         arg.Type = new CodeTypeReference (typeof (HttpContext));
 470                         arg.Name = "context";
 471                         method.Parameters.Add (arg);
 472
 473                         arg = new CodeParameterDeclarationExpression ();
 474                         arg.Type = new CodeTypeReference (typeof (AsyncCallback));
 475                         arg.Name = "cb";
 476                         method.Parameters.Add (arg);
 477
 478                         arg = new CodeParameterDeclarationExpression ();
 479                         arg.Type = new CodeTypeReference (typeof (object));
 480                         arg.Name = "data";
 481                         method.Parameters.Add (arg);
 482
 483                         invoke = new CodeMethodInvokeExpression (thisRef, "AsyncPageBeginProcessRequest");
 484                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("context"));
 485                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("cb"));
 486                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("data"));
 487
 488                         method.Statements.Add (new CodeMethodReturnStatement (invoke));
 489                         mainClass.Members.Add (method);
 490
 491                         // public virtual void EndProcessRequest(System.IAsyncResult ar);
 492                         method = new CodeMemberMethod ();
 493                         method.ReturnType = new CodeTypeReference (typeof (void));
 494                         method.Name = "EndProcessRequest";
 495                         method.Attributes = MemberAttributes.Public;
 496
 497                         arg = new CodeParameterDeclarationExpression ();
 498                         arg.Type = new CodeTypeReference (typeof (IAsyncResult));
 499                         arg.Name = "ar";
 500                         method.Parameters.Add (arg);
 501
 502                         invoke = new CodeMethodInvokeExpression (thisRef, "AsyncPageEndProcessRequest");
 503                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("ar"));
 504
 505                         method.Statements.Add (invoke);
 506                         mainClass.Members.Add (method);
 507
 508                         // public override void ProcessRequest(System.Web.HttpContext context);
 509                         method = new CodeMemberMethod ();
 510                         method.ReturnType = new CodeTypeReference (typeof (void));
 511                         method.Name = "ProcessRequest";
 512                         method.Attributes = MemberAttributes.Public | MemberAttributes.Override;
 513
 514                         arg = new CodeParameterDeclarationExpression ();
 515                         arg.Type = new CodeTypeReference (typeof (HttpContext));
 516                         arg.Name = "context";
 517                         method.Parameters.Add (arg);
 518
 519                         invoke = new CodeMethodInvokeExpression (new CodeBaseReferenceExpression (), "ProcessRequest");
 520                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("context"));
 521
 522                         method.Statements.Add (invoke);
 523                         mainClass.Members.Add (method);
 524                 }
 525
 526                 public static Type CompilePageType (PageParser pageParser)
 527                 {
 528                         PageCompiler compiler = new PageCompiler (pageParser);
 529                         return compiler.GetCompiledType ();
 530                 }
 531         }
 532 }