mcs/class/System/Microsoft.CSharp/CSharpCodeGenerator.cs

   1 //
   2 // Mono.CSharp CSharpCodeProvider Class implementation
   3 //
   4 // Author:
   5 //   Daniel Stodden (stodden@in.tum.de)
   6 //   Marek Safar (marek.safar@seznam.cz)
   7 //
   8 // (C) 2002 Ximian, Inc.
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 namespace Mono.CSharp
  33 {
  34         using System;
  35         using System.CodeDom;
  36         using System.CodeDom.Compiler;
  37         using System.Globalization;
  38         using System.IO;
  39         using System.Reflection;
  40         using System.Collections;
  41         using System.Text;
  42
  43 #if NET_2_0
  44         using System.Collections.Generic;
  45 #endif
  46
  47         internal class CSharpCodeGenerator
  48                 : CodeGenerator
  49         {
  50 #if NET_2_0
  51                 Dictionary <string, string> providerOptions;
  52 #endif
  53
  54                 // It is used for beautiful "for" syntax
  55                 bool dont_write_semicolon;
  56
  57                 //
  58                 // Constructors
  59                 //
  60                 public CSharpCodeGenerator()
  61                 {
  62                         dont_write_semicolon = false;
  63                 }
  64
  65 #if NET_2_0
  66                 public CSharpCodeGenerator (Dictionary <string, string> providerOptions)
  67                 {
  68                         this.providerOptions = providerOptions;
  69                 }
  70
  71                 protected Dictionary <string, string> ProviderOptions {
  72                         get { return providerOptions; }
  73                 }
  74 #endif
  75
  76                 //
  77                 // Properties
  78                 //
  79                 protected override string NullToken {
  80                         get {
  81                                 return "null";
  82                         }
  83                 }
  84
  85                 //
  86                 // Methods
  87                 //
  88
  89                 protected override void GenerateArrayCreateExpression (CodeArrayCreateExpression expression)
  90                 {
  91                         //
  92                         // This tries to replicate MS behavior as good as
  93                         // possible.
  94                         //
  95                         // The Code-Array stuff in ms.net seems to be broken
  96                         // anyways, or I'm too stupid to understand it.
  97                         //
  98                         // I'm sick of it. If you try to develop array
  99                         // creations, test them on windows. If it works there
 100                         // but not in mono, drop me a note.  I'd be especially
 101                         // interested in jagged-multidimensional combinations
 102                         // with proper initialization :}
 103                         //
 104
 105                         TextWriter output = Output;
 106
 107                         output.Write ("new ");
 108
 109                         CodeExpressionCollection initializers = expression.Initializers;
 110                         CodeTypeReference createType = expression.CreateType;
 111
 112                         if (initializers.Count > 0) {
 113
 114                                 OutputType (createType);
 115
 116                                 if (expression.CreateType.ArrayRank == 0) {
 117                                         output.Write ("[]");
 118                                 }
 119
 120                                 OutputStartBrace ();
 121                                 ++Indent;
 122                                 OutputExpressionList (initializers, true);
 123                                 --Indent;
 124                                 output.Write ("}");
 125                         } else {
 126                                 CodeTypeReference arrayType = createType.ArrayElementType;
 127                                 while (arrayType != null) {
 128                                         createType = arrayType;
 129                                         arrayType = arrayType.ArrayElementType;
 130                                 }
 131
 132                                 OutputType (createType);
 133
 134                                 output.Write ('[');
 135
 136                                 CodeExpression size = expression.SizeExpression;
 137                                 if (size != null)
 138                                         GenerateExpression (size);
 139                                 else
 140                                         output.Write (expression.Size);
 141
 142                                 output.Write(']');
 143                         }
 144                 }
 145
 146                 protected override void GenerateBaseReferenceExpression (CodeBaseReferenceExpression expression)
 147                 {
 148                         Output.Write ("base");
 149                 }
 150
 151                 protected override void GenerateCastExpression (CodeCastExpression expression)
 152                 {
 153                         TextWriter output = Output;
 154                         output.Write ("((");
 155                         OutputType (expression.TargetType);
 156                         output.Write (")(");
 157                         GenerateExpression (expression.Expression);
 158                         output.Write ("))");
 159                 }
 160
 161
 162                 protected override void GenerateCompileUnitStart (CodeCompileUnit compileUnit)
 163                 {
 164                         GenerateComment (new CodeComment ("------------------------------------------------------------------------------"));
 165                         GenerateComment (new CodeComment (" <autogenerated>"));
 166                         GenerateComment (new CodeComment ("     This code was generated by a tool."));
 167                         GenerateComment (new CodeComment ("     Mono Runtime Version: " +  System.Environment.Version));
 168                         GenerateComment (new CodeComment (""));
 169                         GenerateComment (new CodeComment ("     Changes to this file may cause incorrect behavior and will be lost if "));
 170                         GenerateComment (new CodeComment ("     the code is regenerated."));
 171                         GenerateComment (new CodeComment (" </autogenerated>"));
 172                         GenerateComment (new CodeComment ("------------------------------------------------------------------------------"));
 173                         Output.WriteLine ();
 174                         base.GenerateCompileUnitStart (compileUnit);
 175                 }
 176
 177                 protected override void GenerateCompileUnit (CodeCompileUnit compileUnit)
 178                 {
 179                         GenerateCompileUnitStart (compileUnit);
 180
 181                         if (compileUnit.AssemblyCustomAttributes.Count > 0) {
 182                                 OutputAttributes (compileUnit.AssemblyCustomAttributes,
 183                                         "assembly: ", false);
 184                                 Output.WriteLine ("");
 185                         }
 186
 187                         foreach (CodeNamespace ns in compileUnit.Namespaces)
 188                                 GenerateNamespace (ns);
 189
 190                         GenerateCompileUnitEnd (compileUnit);
 191                 }
 192
 193                 protected override void GenerateDelegateCreateExpression (CodeDelegateCreateExpression expression)
 194                 {
 195                         TextWriter output = Output;
 196
 197                         output.Write ("new ");
 198                         OutputType (expression.DelegateType);
 199                         output.Write ('(');
 200
 201                         CodeExpression targetObject = expression.TargetObject;
 202                         if (targetObject != null) {
 203                                 GenerateExpression (targetObject);
 204                                 Output.Write ('.');
 205                         }
 206                         output.Write (GetSafeName (expression.MethodName));
 207
 208                         output.Write (')');
 209                 }
 210
 211                 protected override void GenerateFieldReferenceExpression (CodeFieldReferenceExpression expression)
 212                 {
 213                         CodeExpression targetObject = expression.TargetObject;
 214                         if (targetObject != null) {
 215                                 GenerateExpression (targetObject);
 216                                 Output.Write ('.');
 217                         }
 218                         Output.Write (GetSafeName (expression.FieldName));
 219                 }
 220
 221                 protected override void GenerateArgumentReferenceExpression (CodeArgumentReferenceExpression expression)
 222                 {
 223                         Output.Write (GetSafeName (expression.ParameterName));
 224                 }
 225
 226                 protected override void GenerateVariableReferenceExpression (CodeVariableReferenceExpression expression)
 227                 {
 228                         Output.Write (GetSafeName (expression.VariableName));
 229                 }
 230
 231                 protected override void GenerateIndexerExpression (CodeIndexerExpression expression)
 232                 {
 233                         TextWriter output = Output;
 234
 235                         GenerateExpression (expression.TargetObject);
 236                         output.Write ('[');
 237                         OutputExpressionList (expression.Indices);
 238                         output.Write (']');
 239                 }
 240
 241                 protected override void GenerateArrayIndexerExpression (CodeArrayIndexerExpression expression)
 242                 {
 243                         TextWriter output = Output;
 244
 245                         GenerateExpression (expression.TargetObject);
 246                         output.Write ('[');
 247                         OutputExpressionList (expression.Indices);
 248                         output.Write (']');
 249                 }
 250
 251                 protected override void GenerateSnippetExpression (CodeSnippetExpression expression)
 252                 {
 253                         Output.Write (expression.Value);
 254                 }
 255
 256                 protected override void GenerateMethodInvokeExpression (CodeMethodInvokeExpression expression)
 257                 {
 258                         TextWriter output = Output;
 259
 260                         GenerateMethodReferenceExpression (expression.Method);
 261
 262                         output.Write ('(');
 263                         OutputExpressionList (expression.Parameters);
 264                         output.Write (')');
 265                 }
 266
 267                 protected override void GenerateMethodReferenceExpression (CodeMethodReferenceExpression expression)
 268                 {
 269                         if (expression.TargetObject != null)
 270                         {
 271                                 GenerateExpression (expression.TargetObject);
 272                                 Output.Write ('.');
 273                         };
 274                         Output.Write (GetSafeName (expression.MethodName));
 275 #if NET_2_0
 276                         if (expression.TypeArguments.Count > 0)
 277                                 Output.Write (GetTypeArguments (expression.TypeArguments));
 278 #endif
 279                 }
 280
 281                 protected override void GenerateEventReferenceExpression (CodeEventReferenceExpression expression)
 282                 {
 283                         if (expression.TargetObject != null) {
 284                                 GenerateExpression (expression.TargetObject);
 285                                 Output.Write ('.');
 286                         }
 287                         Output.Write (GetSafeName (expression.EventName));
 288                 }
 289
 290                 protected override void GenerateDelegateInvokeExpression (CodeDelegateInvokeExpression expression)
 291                 {
 292                         if (expression.TargetObject != null)
 293                                 GenerateExpression (expression.TargetObject);
 294                         Output.Write ('(');
 295                         OutputExpressionList (expression.Parameters);
 296                         Output.Write (')');
 297                 }
 298
 299                 protected override void GenerateObjectCreateExpression (CodeObjectCreateExpression expression)
 300                 {
 301                         Output.Write ("new ");
 302                         OutputType (expression.CreateType);
 303                         Output.Write ('(');
 304                         OutputExpressionList (expression.Parameters);
 305                         Output.Write (')');
 306                 }
 307
 308                 protected override void GeneratePropertyReferenceExpression (CodePropertyReferenceExpression expression)
 309                 {
 310                         CodeExpression targetObject = expression.TargetObject;
 311                         if (targetObject != null) {
 312                                 GenerateExpression (targetObject);
 313                                 Output.Write ('.');
 314                         }
 315                         Output.Write (GetSafeName (expression.PropertyName ));
 316                 }
 317
 318                 protected override void GeneratePropertySetValueReferenceExpression (CodePropertySetValueReferenceExpression expression)
 319                 {
 320                         Output.Write ("value");
 321                 }
 322
 323                 protected override void GenerateThisReferenceExpression (CodeThisReferenceExpression expression)
 324                 {
 325                         Output.Write ("this");
 326                 }
 327
 328                 protected override void GenerateExpressionStatement (CodeExpressionStatement statement)
 329                 {
 330                         GenerateExpression (statement.Expression);
 331                         if (dont_write_semicolon)
 332                                 return;
 333                         Output.WriteLine(';');
 334                 }
 335
 336                 protected override void GenerateIterationStatement (CodeIterationStatement statement)
 337                 {
 338                         TextWriter output = Output;
 339
 340                         dont_write_semicolon = true;
 341                         output.Write ("for (");
 342                         GenerateStatement (statement.InitStatement);
 343                         output.Write ("; ");
 344                         GenerateExpression (statement.TestExpression);
 345                         output.Write ("; ");
 346                         GenerateStatement (statement.IncrementStatement);
 347                         output.Write (")");
 348                         dont_write_semicolon = false;
 349                         OutputStartBrace ();
 350                         ++Indent;
 351                         GenerateStatements (statement.Statements);
 352                         --Indent;
 353                         output.WriteLine ('}');
 354                 }
 355
 356                 protected override void GenerateThrowExceptionStatement (CodeThrowExceptionStatement statement)
 357                 {
 358                         Output.Write ("throw");
 359                         if (statement.ToThrow != null) {
 360                                 Output.Write (' ');
 361                                 GenerateExpression (statement.ToThrow);
 362                         }
 363                         Output.WriteLine (";");
 364                 }
 365
 366                 protected override void GenerateComment (CodeComment comment)
 367                 {
 368                         TextWriter output = Output;
 369
 370                         string commentChars = null;
 371
 372                         if (comment.DocComment) {
 373                                 commentChars = "///";
 374                         } else {
 375                                 commentChars = "//";
 376                         }
 377
 378                         output.Write (commentChars);
 379                         output.Write (' ');
 380                         string text = comment.Text;
 381
 382                         for (int i = 0; i < text.Length; i++) {
 383                                 output.Write (text[i]);
 384                                 if (text[i] == '\r') {
 385                                         if (i < (text.Length - 1) && text[i + 1] == '\n') {
 386                                                 continue;
 387                                         }
 388                                         output.Write (commentChars);
 389                                 } else if (text[i] == '\n') {
 390                                         output.Write (commentChars);
 391                                 }
 392                         }
 393
 394                         output.WriteLine ();
 395                 }
 396
 397                 protected override void GenerateMethodReturnStatement (CodeMethodReturnStatement statement)
 398                 {
 399                         TextWriter output = Output;
 400
 401                         if (statement.Expression != null) {
 402                                 output.Write ("return ");
 403                                 GenerateExpression (statement.Expression);
 404                                 output.WriteLine (";");
 405                         } else {
 406                                 output.WriteLine ("return;");
 407                         }
 408                 }
 409
 410                 protected override void GenerateConditionStatement (CodeConditionStatement statement)
 411                 {
 412                         TextWriter output = Output;
 413                         output.Write ("if (");
 414                         GenerateExpression (statement.Condition);
 415                         output.Write (")");
 416                         OutputStartBrace ();
 417
 418                         ++Indent;
 419                         GenerateStatements (statement.TrueStatements);
 420                         --Indent;
 421
 422                         CodeStatementCollection falses = statement.FalseStatements;
 423                         if (falses.Count > 0) {
 424                                 output.Write ('}');
 425                                 if (Options.ElseOnClosing)
 426                                         output.Write (' ');
 427                                 else
 428                                         output.WriteLine ();
 429                                 output.Write ("else");
 430                                 OutputStartBrace ();
 431                                 ++Indent;
 432                                 GenerateStatements (falses);
 433                                 --Indent;
 434                         }
 435                         output.WriteLine ('}');
 436                 }
 437
 438                 protected override void GenerateTryCatchFinallyStatement (CodeTryCatchFinallyStatement statement)
 439                 {
 440                         TextWriter output = Output;
 441                         CodeGeneratorOptions options = Options;
 442
 443                         output.Write ("try");
 444                         OutputStartBrace ();
 445                         ++Indent;
 446                         GenerateStatements (statement.TryStatements);
 447                         --Indent;
 448
 449                         foreach (CodeCatchClause clause in statement.CatchClauses) {
 450                                 output.Write ('}');
 451                                 if (options.ElseOnClosing)
 452                                         output.Write (' ');
 453                                 else
 454                                         output.WriteLine ();
 455                                 output.Write ("catch (");
 456                                 OutputTypeNamePair (clause.CatchExceptionType, GetSafeName(clause.LocalName));
 457                                 output.Write (")");
 458                                 OutputStartBrace ();
 459                                 ++Indent;
 460                                 GenerateStatements (clause.Statements);
 461                                 --Indent;
 462                         }
 463
 464                         CodeStatementCollection finallies = statement.FinallyStatements;
 465                         if (finallies.Count > 0) {
 466                                 output.Write ('}');
 467                                 if (options.ElseOnClosing)
 468                                         output.Write (' ');
 469                                 else
 470                                         output.WriteLine ();
 471                                 output.Write ("finally");
 472                                 OutputStartBrace ();
 473                                 ++Indent;
 474                                 GenerateStatements (finallies);
 475                                 --Indent;
 476                         }
 477
 478                         output.WriteLine('}');
 479                 }
 480
 481                 protected override void GenerateAssignStatement (CodeAssignStatement statement)
 482                 {
 483                         TextWriter output = Output;
 484                         GenerateExpression (statement.Left);
 485                         output.Write (" = ");
 486                         GenerateExpression (statement.Right);
 487                         if (dont_write_semicolon)
 488                                 return;
 489                         output.WriteLine (';');
 490                 }
 491
 492                 protected override void GenerateAttachEventStatement (CodeAttachEventStatement statement)
 493                 {
 494                         TextWriter output = Output;
 495
 496                         GenerateEventReferenceExpression (statement.Event);
 497                         output.Write (" += ");
 498                         GenerateExpression (statement.Listener);
 499                         output.WriteLine (';');
 500                 }
 501
 502                 protected override void GenerateRemoveEventStatement (CodeRemoveEventStatement statement)
 503                 {
 504                         TextWriter output = Output;
 505                         GenerateEventReferenceExpression (statement.Event);
 506                         output.Write (" -= ");
 507                         GenerateExpression (statement.Listener);
 508                         output.WriteLine (';');
 509                 }
 510
 511                 protected override void GenerateGotoStatement (CodeGotoStatement statement)
 512                 {
 513                         TextWriter output = Output;
 514
 515                         output.Write ("goto ");
 516                         output.Write (GetSafeName (statement.Label));
 517                         output.WriteLine (";");
 518                 }
 519
 520                 protected override void GenerateLabeledStatement (CodeLabeledStatement statement)
 521                 {
 522                         Indent--;
 523                         Output.Write (statement.Label);
 524                         Output.WriteLine (":");
 525                         Indent++;
 526
 527                         if (statement.Statement != null) {
 528                                 GenerateStatement (statement.Statement);
 529                         }
 530                 }
 531
 532                 protected override void GenerateVariableDeclarationStatement (CodeVariableDeclarationStatement statement)
 533                 {
 534                         TextWriter output = Output;
 535
 536                         OutputTypeNamePair (statement.Type, GetSafeName (statement.Name));
 537
 538                         CodeExpression initExpression = statement.InitExpression;
 539                         if (initExpression != null) {
 540                                 output.Write (" = ");
 541                                 GenerateExpression (initExpression);
 542                         }
 543
 544                         if (!dont_write_semicolon) {
 545                                 output.WriteLine (';');
 546                         }
 547                 }
 548
 549                 protected override void GenerateLinePragmaStart (CodeLinePragma linePragma)
 550                 {
 551                         Output.WriteLine ();
 552                         Output.Write ("#line ");
 553                         Output.Write (linePragma.LineNumber);
 554                         Output.Write (" \"");
 555                         Output.Write (linePragma.FileName);
 556                         Output.Write ("\"");
 557                         Output.WriteLine ();
 558                 }
 559
 560                 protected override void GenerateLinePragmaEnd (CodeLinePragma linePragma)
 561                 {
 562                         Output.WriteLine ();
 563                         Output.WriteLine ("#line default");
 564                 }
 565
 566                 protected override void GenerateEvent (CodeMemberEvent eventRef, CodeTypeDeclaration declaration)
 567                 {
 568                         if (IsCurrentDelegate || IsCurrentEnum) {
 569                                 return;
 570                         }
 571
 572                         OutputAttributes (eventRef.CustomAttributes, null, false);
 573
 574                         if (eventRef.PrivateImplementationType == null) {
 575                                 OutputMemberAccessModifier (eventRef.Attributes);
 576                         }
 577
 578                         Output.Write ("event ");
 579
 580                         if (eventRef.PrivateImplementationType != null) {
 581                                 OutputTypeNamePair (eventRef.Type,
 582                                         eventRef.PrivateImplementationType.BaseType + "." +
 583                                         eventRef.Name);
 584                         } else {
 585                                 OutputTypeNamePair (eventRef.Type, GetSafeName (eventRef.Name));
 586                         }
 587                         Output.WriteLine (';');
 588                 }
 589
 590                 protected override void GenerateField (CodeMemberField field)
 591                 {
 592                         if (IsCurrentDelegate || IsCurrentInterface) {
 593                                 return;
 594                         }
 595
 596                         TextWriter output = Output;
 597
 598                         OutputAttributes (field.CustomAttributes, null, false);
 599
 600                         if (IsCurrentEnum) {
 601                                 Output.Write (GetSafeName (field.Name));
 602                         } else {
 603                                 MemberAttributes attributes = field.Attributes;
 604                                 OutputMemberAccessModifier (attributes);
 605                                 OutputVTableModifier (attributes);
 606                                 OutputFieldScopeModifier (attributes);
 607
 608                                 OutputTypeNamePair (field.Type, GetSafeName (field.Name));
 609                         }
 610
 611                         CodeExpression initExpression = field.InitExpression;
 612                         if (initExpression != null) {
 613                                 output.Write (" = ");
 614                                 GenerateExpression (initExpression);
 615                         }
 616
 617                         if (IsCurrentEnum)
 618                                 output.WriteLine (',');
 619                         else
 620                                 output.WriteLine (';');
 621                 }
 622
 623                 protected override void GenerateSnippetMember (CodeSnippetTypeMember member)
 624                 {
 625                         Output.Write (member.Text);
 626                 }
 627
 628                 protected override void GenerateEntryPointMethod (CodeEntryPointMethod method,
 629                                                                   CodeTypeDeclaration declaration)
 630                 {
 631 #if NET_2_0
 632                         OutputAttributes (method.CustomAttributes, null, false);
 633 #endif
 634
 635                         Output.Write ("public static ");
 636 #if NET_2_0
 637                         OutputType (method.ReturnType);
 638 #else
 639                         Output.Write ("void");
 640 #endif
 641                         Output.Write (" Main()");
 642                         OutputStartBrace ();
 643                         Indent++;
 644                         GenerateStatements (method.Statements);
 645                         Indent--;
 646                         Output.WriteLine ("}");
 647                 }
 648
 649                 protected override void GenerateMethod (CodeMemberMethod method,
 650                                                         CodeTypeDeclaration declaration)
 651                 {
 652                         if (IsCurrentDelegate || IsCurrentEnum) {
 653                                 return;
 654                         }
 655
 656                         TextWriter output = Output;
 657
 658                         OutputAttributes (method.CustomAttributes, null, false);
 659
 660                         OutputAttributes (method.ReturnTypeCustomAttributes,
 661                                 "return: ", false);
 662
 663                         MemberAttributes attributes = method.Attributes;
 664
 665                         if (!IsCurrentInterface) {
 666                                 if (method.PrivateImplementationType == null) {
 667                                         OutputMemberAccessModifier (attributes);
 668                                         OutputVTableModifier (attributes);
 669                                         OutputMemberScopeModifier (attributes);
 670                                 }
 671                         } else {
 672                                 OutputVTableModifier (attributes);
 673                         }
 674
 675                         OutputType (method.ReturnType);
 676                         output.Write (' ');
 677
 678                         CodeTypeReference privateType = method.PrivateImplementationType;
 679                         if (privateType != null) {
 680                                 output.Write (privateType.BaseType);
 681                                 output.Write ('.');
 682                         }
 683                         output.Write (GetSafeName (method.Name));
 684
 685 #if NET_2_0
 686                         GenerateGenericsParameters (method.TypeParameters);
 687 #endif
 688
 689                         output.Write ('(');
 690                         OutputParameters (method.Parameters);
 691                         output.Write (')');
 692
 693 #if NET_2_0
 694                         GenerateGenericsConstraints (method.TypeParameters);
 695 #endif
 696
 697                         if ((attributes & MemberAttributes.ScopeMask) == MemberAttributes.Abstract || declaration.IsInterface)
 698                                 output.WriteLine (';');
 699                         else {
 700                                 OutputStartBrace ();
 701                                 ++Indent;
 702                                 GenerateStatements (method.Statements);
 703                                 --Indent;
 704                                 output.WriteLine ('}');
 705                         }
 706                 }
 707
 708                 static bool IsAbstract (MemberAttributes attributes)
 709                 {
 710                         return (attributes & MemberAttributes.Abstract) == MemberAttributes.Abstract;
 711                 }
 712
 713                 protected override void GenerateProperty (CodeMemberProperty property,
 714                                                           CodeTypeDeclaration declaration)
 715                 {
 716                         if (IsCurrentDelegate || IsCurrentEnum) {
 717                                 return;
 718                         }
 719
 720                         TextWriter output = Output;
 721
 722                         OutputAttributes (property.CustomAttributes, null, false);
 723
 724                         MemberAttributes attributes = property.Attributes;
 725
 726                         if (!IsCurrentInterface) {
 727                                 if (property.PrivateImplementationType == null) {
 728                                         OutputMemberAccessModifier (attributes);
 729                                         OutputVTableModifier (attributes);
 730                                         OutputMemberScopeModifier (attributes);
 731                                 }
 732                         } else {
 733                                 OutputVTableModifier (attributes);
 734                         }
 735
 736                         OutputType (property.Type);
 737                         output.Write (' ');
 738
 739                         if (!IsCurrentInterface && property.PrivateImplementationType != null) {
 740                                 output.Write (property.PrivateImplementationType.BaseType);
 741                                 output.Write ('.');
 742                         }
 743
 744                         // only consider property indexer if name is Item (case-insensitive
 745                         // comparison) AND property has parameters
 746                         if (string.Compare(property.Name, "Item", true, CultureInfo.InvariantCulture) == 0 && property.Parameters.Count > 0) {
 747                                 output.Write ("this[");
 748                                 OutputParameters(property.Parameters);
 749                                 output.Write(']');
 750                         } else {
 751                                 output.Write (GetSafeName (property.Name));
 752                         }
 753                         OutputStartBrace ();
 754                         ++Indent;
 755
 756                         if (declaration.IsInterface || IsAbstract (property.Attributes))
 757                         {
 758                                 if (property.HasGet) output.WriteLine("get;");
 759                                 if (property.HasSet) output.WriteLine("set;");
 760                         }
 761                         else
 762                         {
 763                                 if (property.HasGet)
 764                                 {
 765                                         output.Write ("get");
 766                                         OutputStartBrace ();
 767                                         ++Indent;
 768
 769                                         GenerateStatements (property.GetStatements);
 770
 771                                         --Indent;
 772                                         output.WriteLine ('}');
 773                                 }
 774
 775                                 if (property.HasSet)
 776                                 {
 777                                         output.Write ("set");
 778                                         OutputStartBrace ();
 779                                         ++Indent;
 780
 781                                         GenerateStatements (property.SetStatements);
 782
 783                                         --Indent;
 784                                         output.WriteLine ('}');
 785                                 }
 786                         }
 787
 788                         --Indent;
 789                         output.WriteLine ('}');
 790                 }
 791
 792                 protected override void GenerateConstructor (CodeConstructor constructor, CodeTypeDeclaration declaration)
 793                 {
 794                         if (IsCurrentDelegate || IsCurrentEnum || IsCurrentInterface) {
 795                                 return;
 796                         }
 797
 798                         OutputAttributes (constructor.CustomAttributes, null, false);
 799
 800                         OutputMemberAccessModifier (constructor.Attributes);
 801                         Output.Write (GetSafeName (CurrentTypeName) + "(");
 802                         OutputParameters (constructor.Parameters);
 803                         Output.Write (")");
 804                         if (constructor.BaseConstructorArgs.Count > 0) {
 805                                 Output.WriteLine (" : ");
 806                                 Indent += 2;
 807                                 Output.Write ("base(");
 808                                 OutputExpressionList (constructor.BaseConstructorArgs);
 809                                 Output.Write (')');
 810                                 Indent -= 2;
 811                         }
 812                         if (constructor.ChainedConstructorArgs.Count > 0) {
 813                                 Output.WriteLine (" : ");
 814                                 Indent += 2;
 815                                 Output.Write("this(");
 816                                 OutputExpressionList (constructor.ChainedConstructorArgs);
 817                                 Output.Write(')');
 818                                 Indent -= 2;
 819                         }
 820                         OutputStartBrace ();
 821                         Indent++;
 822                         GenerateStatements (constructor.Statements);
 823                         Indent--;
 824                         Output.WriteLine ('}');
 825                 }
 826
 827                 protected override void GenerateTypeConstructor (CodeTypeConstructor constructor)
 828                 {
 829                         if (IsCurrentDelegate || IsCurrentEnum || IsCurrentInterface) {
 830                                 return;
 831                         }
 832
 833 #if NET_2_0
 834                         OutputAttributes (constructor.CustomAttributes, null, false);
 835 #endif
 836
 837                         Output.Write ("static " + GetSafeName (CurrentTypeName) + "()");
 838                         OutputStartBrace ();
 839                         Indent++;
 840                         GenerateStatements (constructor.Statements);
 841                         Indent--;
 842                         Output.WriteLine ('}');
 843                 }
 844
 845                 protected override void GenerateTypeStart(CodeTypeDeclaration declaration)
 846                 {
 847                         TextWriter output = Output;
 848
 849                         OutputAttributes (declaration.CustomAttributes, null, false);
 850
 851                         if (!IsCurrentDelegate) {
 852                                 OutputTypeAttributes (declaration);
 853
 854                                 output.Write (GetSafeName (declaration.Name));
 855
 856 #if NET_2_0
 857                                 GenerateGenericsParameters (declaration.TypeParameters);
 858 #endif
 859
 860                                 IEnumerator enumerator = declaration.BaseTypes.GetEnumerator ();
 861                                 if (enumerator.MoveNext ()) {
 862                                         CodeTypeReference type = (CodeTypeReference) enumerator.Current;
 863
 864                                         output.Write (" : ");
 865                                         OutputType (type);
 866
 867                                         while (enumerator.MoveNext ()) {
 868                                                 type = (CodeTypeReference) enumerator.Current;
 869
 870                                                 output.Write (", ");
 871                                                 OutputType (type);
 872                                         }
 873                                 }
 874
 875 #if NET_2_0
 876                                 GenerateGenericsConstraints (declaration.TypeParameters);
 877 #endif
 878                                 OutputStartBrace ();
 879                                 ++Indent;
 880                         } else {
 881                                 if ((declaration.TypeAttributes & TypeAttributes.VisibilityMask) == TypeAttributes.Public) {
 882                                         output.Write ("public ");
 883                                 }
 884
 885                                 CodeTypeDelegate delegateDecl = (CodeTypeDelegate) declaration;
 886                                 output.Write ("delegate ");
 887                                 OutputType (delegateDecl.ReturnType);
 888                                 output.Write (" ");
 889                                 output.Write (GetSafeName (declaration.Name));
 890                                 output.Write ("(");
 891                                 OutputParameters (delegateDecl.Parameters);
 892                                 output.WriteLine (");");
 893                         }
 894                 }
 895
 896                 protected override void GenerateTypeEnd (CodeTypeDeclaration declaration)
 897                 {
 898                         if (!IsCurrentDelegate) {
 899                                 --Indent;
 900                                 Output.WriteLine ("}");
 901                         }
 902                 }
 903
 904                 protected override void GenerateNamespaceStart (CodeNamespace ns)
 905                 {
 906                         TextWriter output = Output;
 907
 908                         string name = ns.Name;
 909                         if (name != null && name.Length != 0) {
 910                                 output.Write ("namespace ");
 911                                 output.Write (GetSafeName (name));
 912                                 OutputStartBrace ();
 913                                 ++Indent;
 914                         }
 915                 }
 916
 917                 protected override void GenerateNamespaceEnd (CodeNamespace ns)
 918                 {
 919                         string name = ns.Name;
 920                         if (name != null && name.Length != 0) {
 921                                 --Indent;
 922                                 Output.WriteLine ("}");
 923                         }
 924                 }
 925
 926                 protected override void GenerateNamespaceImport (CodeNamespaceImport import)
 927                 {
 928                         TextWriter output = Output;
 929
 930                         output.Write ("using ");
 931                         output.Write (GetSafeName (import.Namespace));
 932                         output.WriteLine (';');
 933                 }
 934
 935                 protected override void GenerateAttributeDeclarationsStart (CodeAttributeDeclarationCollection attributes)
 936                 {
 937                         Output.Write ('[');
 938                 }
 939
 940                 protected override void GenerateAttributeDeclarationsEnd (CodeAttributeDeclarationCollection attributes)
 941                 {
 942                         Output.Write (']');
 943                 }
 944
 945                 private void OutputStartBrace ()
 946                 {
 947                         if (Options.BracingStyle == "C") {
 948                                 Output.WriteLine ("");
 949                                 Output.WriteLine ("{");
 950                         } else {
 951                                 Output.WriteLine (" {");
 952                         }
 953                 }
 954
 955                 private void OutputAttributes (CodeAttributeDeclarationCollection attributes, string prefix, bool inline)
 956                 {
 957                         foreach (CodeAttributeDeclaration att in attributes) {
 958                                 GenerateAttributeDeclarationsStart (attributes);
 959                                 if (prefix != null) {
 960                                         Output.Write (prefix);
 961                                 }
 962                                 OutputAttributeDeclaration (att);
 963                                 GenerateAttributeDeclarationsEnd (attributes);
 964                                 if (inline) {
 965                                         Output.Write (" ");
 966                                 } else {
 967                                         Output.WriteLine ();
 968                                 }
 969                         }
 970                 }
 971
 972                 private void OutputAttributeDeclaration (CodeAttributeDeclaration attribute)
 973                 {
 974                         Output.Write (attribute.Name.Replace ('+', '.'));
 975                         Output.Write ('(');
 976                         IEnumerator enumerator = attribute.Arguments.GetEnumerator ();
 977                         if (enumerator.MoveNext ()) {
 978                                 CodeAttributeArgument argument = (CodeAttributeArgument) enumerator.Current;
 979                                 OutputAttributeArgument (argument);
 980
 981                                 while (enumerator.MoveNext ()) {
 982                                         Output.Write (", ");
 983                                         argument = (CodeAttributeArgument) enumerator.Current;
 984                                         OutputAttributeArgument (argument);
 985                                 }
 986                         }
 987                         Output.Write (')');
 988                 }
 989
 990                 protected override void OutputType (CodeTypeReference type)
 991                 {
 992                         Output.Write (GetTypeOutput (type));
 993                 }
 994
 995                 private void OutputVTableModifier (MemberAttributes attributes)
 996                 {
 997                         if ((attributes & MemberAttributes.VTableMask) == MemberAttributes.New) {
 998                                 Output.Write ("new ");
 999                         }
1000                 }
1001
1002                 protected override void OutputFieldScopeModifier (MemberAttributes attributes)
1003                 {
1004                         switch (attributes & MemberAttributes.ScopeMask) {
1005                                 case MemberAttributes.Static:
1006                                         Output.Write ("static ");
1007                                         break;
1008                                 case MemberAttributes.Const:
1009                                         Output.Write ("const ");
1010                                         break;
1011                         }
1012                 }
1013
1014 #if NET_2_0
1015
1016                 // Note: this method should in fact be private as in .NET 2.0, the
1017                 // CSharpCodeGenerator no longer derives from CodeGenerator but we
1018                 // still need to make this change.
1019                 protected override void OutputMemberAccessModifier (MemberAttributes attributes)
1020                 {
1021                         switch (attributes & MemberAttributes.AccessMask) {
1022                                 case MemberAttributes.Assembly:
1023                                 case MemberAttributes.FamilyAndAssembly:
1024                                         Output.Write ("internal ");
1025                                         break;
1026                                 case MemberAttributes.Family:
1027                                         Output.Write ("protected ");
1028                                         break;
1029                                 case MemberAttributes.FamilyOrAssembly:
1030                                         Output.Write ("protected internal ");
1031                                         break;
1032                                 case MemberAttributes.Private:
1033                                         Output.Write ("private ");
1034                                         break;
1035                                 case MemberAttributes.Public:
1036                                         Output.Write ("public ");
1037                                         break;
1038                         }
1039                 }
1040
1041                 // Note: this method should in fact be private as in .NET 2.0, the
1042                 // CSharpCodeGenerator no longer derives from CodeGenerator but we
1043                 // still need to make this change.
1044                 protected override void OutputMemberScopeModifier (MemberAttributes attributes)
1045                 {
1046                         switch (attributes & MemberAttributes.ScopeMask) {
1047                                 case MemberAttributes.Abstract:
1048                                         Output.Write ("abstract ");
1049                                         break;
1050                                 case MemberAttributes.Final:
1051                                         // do nothing
1052                                         break;
1053                                 case MemberAttributes.Static:
1054                                         Output.Write ("static ");
1055                                         break;
1056                                 case MemberAttributes.Override:
1057                                         Output.Write ("override ");
1058                                         break;
1059                                 default:
1060                                         MemberAttributes access = attributes & MemberAttributes.AccessMask;
1061                                         if (access == MemberAttributes.Assembly || access == MemberAttributes.Family || access == MemberAttributes.Public) {
1062                                                 Output.Write ("virtual ");
1063                                         }
1064                                         break;
1065                         }
1066                 }
1067 #endif
1068
1069                 private void OutputTypeAttributes (CodeTypeDeclaration declaration)
1070                 {
1071                         TextWriter output = Output;
1072                         TypeAttributes attributes = declaration.TypeAttributes;
1073
1074                         switch (attributes & TypeAttributes.VisibilityMask) {
1075                                 case TypeAttributes.Public:
1076                                 case TypeAttributes.NestedPublic:
1077                                         output.Write ("public ");
1078                                         break;
1079                                 case TypeAttributes.NestedPrivate:
1080                                         output.Write ("private ");
1081                                         break;
1082 #if NET_2_0
1083                                 case TypeAttributes.NotPublic:
1084                                 case TypeAttributes.NestedFamANDAssem:
1085                                 case TypeAttributes.NestedAssembly:
1086                                         output.Write ("internal ");
1087                                         break;
1088                                 case TypeAttributes.NestedFamily:
1089                                         output.Write ("protected ");
1090                                         break;
1091                                 case TypeAttributes.NestedFamORAssem:
1092                                         output.Write ("protected internal ");
1093                                         break;
1094 #endif
1095                         }
1096
1097                         if (declaration.IsStruct) {
1098 #if NET_2_0
1099                                 if (declaration.IsPartial) {
1100                                         output.Write ("partial ");
1101                                 }
1102 #endif
1103                                 output.Write ("struct ");
1104                         } else if (declaration.IsEnum) {
1105                                 output.Write ("enum ");
1106                         } else {
1107                                 if ((attributes & TypeAttributes.Interface) != 0) {
1108 #if NET_2_0
1109                                         if (declaration.IsPartial) {
1110                                                 output.Write ("partial ");
1111                                         }
1112 #endif
1113                                         output.Write ("interface ");
1114                                 } else {
1115                                         if ((attributes & TypeAttributes.Sealed) != 0)
1116                                                 output.Write ("sealed ");
1117                                         if ((attributes & TypeAttributes.Abstract) != 0)
1118                                                 output.Write ("abstract ");
1119 #if NET_2_0
1120                                         if (declaration.IsPartial) {
1121                                                 output.Write ("partial ");
1122                                         }
1123 #endif
1124                                         output.Write ("class ");
1125                                 }
1126                         }
1127                 }
1128
1129                 [MonoTODO ("Implement missing special characters")]
1130                 protected override string QuoteSnippetString (string value)
1131                 {
1132                         // FIXME: this is weird, but works.
1133                         string output = value.Replace ("\\", "\\\\");
1134                         output = output.Replace ("\"", "\\\"");
1135                         output = output.Replace ("\t", "\\t");
1136                         output = output.Replace ("\r", "\\r");
1137                         output = output.Replace ("\n", "\\n");
1138
1139                         return "\"" + output + "\"";
1140                 }
1141
1142                 protected override void GeneratePrimitiveExpression(CodePrimitiveExpression e)
1143                 {
1144                         if (e.Value is char) {
1145                                 this.GenerateCharValue ((char) e.Value);
1146 #if NET_2_0
1147                         } else if (e.Value is ushort) {
1148                                 ushort uc = (ushort) e.Value;
1149                                 Output.Write (uc.ToString(CultureInfo.InvariantCulture));
1150                         } else if (e.Value is uint) {
1151                                 uint ui = (uint) e.Value;
1152                                 Output.Write (ui.ToString(CultureInfo.InvariantCulture));
1153                                 Output.Write ("u");
1154                         } else if (e.Value is ulong) {
1155                                 ulong ul = (ulong) e.Value;
1156                                 Output.Write (ul.ToString(CultureInfo.InvariantCulture));
1157                                 Output.Write ("ul");
1158                         } else if (e.Value is sbyte) {
1159                                 sbyte sb = (sbyte) e.Value;
1160                                 Output.Write (sb.ToString(CultureInfo.InvariantCulture));
1161 #endif
1162                         } else {
1163                                 base.GeneratePrimitiveExpression (e);
1164                         }
1165                 }
1166
1167                 private void GenerateCharValue (char c)
1168                 {
1169                         Output.Write ('\'');
1170
1171                         switch (c) {
1172                                 case '\0':
1173                                         Output.Write ("\\0");
1174                                         break;
1175                                 case '\t':
1176                                         Output.Write ("\\t");
1177                                         break;
1178                                 case '\n':
1179                                         Output.Write ("\\n");
1180                                         break;
1181                                 case '\r':
1182                                         Output.Write ("\\r");
1183                                         break;
1184                                 case '"':
1185                                         Output.Write ("\\\"");
1186                                         break;
1187                                 case '\'':
1188                                         Output.Write ("\\'");
1189                                         break;
1190                                 case '\\':
1191                                         Output.Write ("\\\\");
1192                                         break;
1193                                 case '\u2028':
1194                                         Output.Write ("\\u");
1195 #if NET_2_0
1196                                         Output.Write (((int) c).ToString ("X4", CultureInfo.InvariantCulture));
1197 #else
1198                                         Output.Write (((int) c).ToString (CultureInfo.InvariantCulture));
1199 #endif
1200                                         break;
1201                                 case '\u2029':
1202                                         Output.Write ("\\u");
1203 #if NET_2_0
1204                                         Output.Write (((int) c).ToString ("X4", CultureInfo.InvariantCulture));
1205 #else
1206                                         Output.Write (((int) c).ToString (CultureInfo.InvariantCulture));
1207 #endif
1208                                         break;
1209                                 default:
1210                                         Output.Write (c);
1211                                         break;
1212                         }
1213
1214                         Output.Write ('\'');
1215                 }
1216
1217                 protected override void GenerateSingleFloatValue (float f)
1218                 {
1219                         base.GenerateSingleFloatValue (f);
1220                         base.Output.Write ('F');
1221                 }
1222
1223                 protected override void GenerateDecimalValue (decimal d)
1224                 {
1225                         base.GenerateDecimalValue (d);
1226                         base.Output.Write ('m');
1227                 }
1228
1229                 protected override void GenerateParameterDeclarationExpression (CodeParameterDeclarationExpression e)
1230                 {
1231                         OutputAttributes (e.CustomAttributes, null, true);
1232                         OutputDirection (e.Direction);
1233                         OutputType (e.Type);
1234                         Output.Write (' ');
1235                         Output.Write (GetSafeName (e.Name));
1236                 }
1237
1238                 protected override void GenerateTypeOfExpression (CodeTypeOfExpression e)
1239                 {
1240                         Output.Write ("typeof(");
1241                         OutputType (e.Type);
1242                         Output.Write (")");
1243                 }
1244
1245                 /*
1246                  * ICodeGenerator
1247                  */
1248
1249                 protected override string CreateEscapedIdentifier (string value)
1250                 {
1251                         if (value == null)
1252                                 throw new NullReferenceException ("Argument identifier is null.");
1253                         return GetSafeName (value);
1254                 }
1255
1256                 protected override string CreateValidIdentifier (string value)
1257                 {
1258                         if (value == null)
1259                                 throw new NullReferenceException ();
1260
1261                         if (keywordsTable == null)
1262                                 FillKeywordTable ();
1263
1264                         if (keywordsTable.Contains (value))
1265                                 return "_" + value;
1266                         else
1267                                 return value;
1268                 }
1269
1270                 protected override string GetTypeOutput (CodeTypeReference type)
1271                 {
1272 #if NET_2_0
1273                         if ((type.Options & CodeTypeReferenceOptions.GenericTypeParameter) != 0)
1274                                 return type.BaseType;
1275 #endif
1276
1277                         string typeOutput = null;
1278
1279                         if (type.ArrayElementType != null) {
1280                                 typeOutput = GetTypeOutput (type.ArrayElementType);
1281                         } else {
1282                                 typeOutput = DetermineTypeOutput (type);
1283                         }
1284
1285                         int rank = type.ArrayRank;
1286                         if (rank > 0) {
1287                                 typeOutput += '[';
1288                                 for (--rank; rank > 0; --rank) {
1289                                         typeOutput += ',';
1290                                 }
1291                                 typeOutput += ']';
1292                         }
1293
1294                         return typeOutput;
1295                 }
1296
1297                 private string DetermineTypeOutput (CodeTypeReference type)
1298                 {
1299                         string typeOutput = null;
1300                         string baseType = type.BaseType;
1301
1302                         switch (baseType.ToLower (System.Globalization.CultureInfo.InvariantCulture)) {
1303                                 case "system.int32":
1304                                         typeOutput = "int";
1305                                         break;
1306                                 case "system.int64":
1307                                         typeOutput = "long";
1308                                         break;
1309                                 case "system.int16":
1310                                         typeOutput = "short";
1311                                         break;
1312                                 case "system.boolean":
1313                                         typeOutput = "bool";
1314                                         break;
1315                                 case "system.char":
1316                                         typeOutput = "char";
1317                                         break;
1318                                 case "system.string":
1319                                         typeOutput = "string";
1320                                         break;
1321                                 case "system.object":
1322                                         typeOutput = "object";
1323                                         break;
1324                                 case "system.void":
1325                                         typeOutput = "void";
1326                                         break;
1327 #if NET_2_0
1328                                 case "system.byte":
1329                                         typeOutput = "byte";
1330                                         break;
1331                                 case "system.sbyte":
1332                                         typeOutput = "sbyte";
1333                                         break;
1334                                 case "system.decimal":
1335                                         typeOutput = "decimal";
1336                                         break;
1337                                 case "system.double":
1338                                         typeOutput = "double";
1339                                         break;
1340                                 case "system.single":
1341                                         typeOutput = "float";
1342                                         break;
1343                                 case "system.uint16":
1344                                         typeOutput = "ushort";
1345                                         break;
1346                                 case "system.uint32":
1347                                         typeOutput = "uint";
1348                                         break;
1349                                 case "system.uint64":
1350                                         typeOutput = "ulong";
1351                                         break;
1352 #endif
1353                                 default:
1354 #if NET_2_0
1355                                         StringBuilder sb = new StringBuilder (baseType.Length);
1356                                         if (type.Options == CodeTypeReferenceOptions.GlobalReference) {
1357                                                 sb.Append ("global::");
1358                                         }
1359
1360                                         int lastProcessedChar = 0;
1361                                         for (int i = 0; i < baseType.Length; i++) {
1362                                                 char currentChar = baseType[i];
1363                                                 if (currentChar != '+' && currentChar != '.') {
1364                                                         if (currentChar == '`') {
1365                                                                 sb.Append (CreateEscapedIdentifier (baseType.Substring (
1366                                                                         lastProcessedChar, i - lastProcessedChar)));
1367                                                                 // skip ` character
1368                                                                 i++;
1369                                                                 // determine number of type arguments to output
1370                                                                 int typeArgCount = baseType[i] - '0';
1371                                                                 // output type arguments
1372                                                                 OutputTypeArguments (type.TypeArguments, sb, typeArgCount);
1373                                                                 // skip type argument indicator
1374                                                                 i++;
1375                                                                 // if next character is . or +, then append .
1376                                                                 if ((i < baseType.Length) && ((baseType[i] == '+') || (baseType[i] == '.'))) {
1377                                                                         sb.Append ('.');
1378                                                                         // skip character that we just processed
1379                                                                         i++;
1380                                                                 }
1381                                                                 // save postion of last processed character
1382                                                                 lastProcessedChar = i;
1383                                                         }
1384                                                 } else {
1385                                                         sb.Append (CreateEscapedIdentifier (baseType.Substring (
1386                                                                 lastProcessedChar, i - lastProcessedChar)));
1387                                                         sb.Append ('.');
1388                                                         // skip separator
1389                                                         i++;
1390                                                         // save postion of last processed character
1391                                                         lastProcessedChar = i;
1392                                                 }
1393                                         }
1394
1395                                         // add characters that have not yet been processed
1396                                         if (lastProcessedChar < baseType.Length) {
1397                                                 sb.Append (CreateEscapedIdentifier (baseType.Substring (lastProcessedChar)));
1398                                         }
1399
1400                                         typeOutput = sb.ToString ();
1401 #else
1402                                         typeOutput = GetSafeName (baseType);
1403                                         typeOutput = typeOutput.Replace ('+', '.');
1404 #endif
1405                                         break;
1406                         }
1407                         return typeOutput;
1408                 }
1409
1410                 static bool is_identifier_start_character (char c)
1411                 {
1412                         return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == '@' || Char.IsLetter (c);
1413                 }
1414
1415                 static bool is_identifier_part_character (char c)
1416                 {
1417                         return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || (c >= '0' && c <= '9') || Char.IsLetter (c)
1418 ;
1419                 }
1420
1421                 protected override bool IsValidIdentifier (string identifier)
1422                 {
1423                         if (identifier == null || identifier.Length == 0)
1424                                 return false;
1425
1426                         if (keywordsTable == null)
1427                                 FillKeywordTable ();
1428
1429                         if (keywordsTable.Contains (identifier))
1430                                 return false;
1431
1432                         if (!is_identifier_start_character (identifier [0]))
1433                                 return false;
1434
1435                         for (int i = 1; i < identifier.Length; i ++)
1436                                 if (! is_identifier_part_character (identifier [i]))
1437                                         return false;
1438
1439                         return true;
1440                 }
1441
1442                 protected override bool Supports (GeneratorSupport supports)
1443                 {
1444                         return true;
1445                 }
1446
1447 #if NET_2_0
1448                 protected override void GenerateDirectives (CodeDirectiveCollection directives)
1449                 {
1450                         foreach (CodeDirective d in directives) {
1451                                 if (d is CodeChecksumPragma) {
1452                                         GenerateCodeChecksumPragma ((CodeChecksumPragma)d);
1453                                         continue;
1454                                 }
1455                                 if (d is CodeRegionDirective) {
1456                                         GenerateCodeRegionDirective ((CodeRegionDirective)d);
1457                                         continue;
1458                                 }
1459                                 throw new NotImplementedException ("Unknown CodeDirective");
1460                         }
1461                 }
1462
1463                 void GenerateCodeChecksumPragma (CodeChecksumPragma pragma)
1464                 {
1465                         Output.Write ("#pragma checksum \"");
1466                         Output.Write (pragma.FileName);
1467                         Output.Write ("\" \"");
1468                         Output.Write (pragma.ChecksumAlgorithmId.ToString ("B"));
1469                         Output.Write ("\" \"");
1470                         if (pragma.ChecksumData != null) {
1471                                 foreach (byte b in pragma.ChecksumData) {
1472                                         Output.Write (b.ToString ("X2"));
1473                                 }
1474                         }
1475                         Output.WriteLine ("\"");
1476                 }
1477
1478                 void GenerateCodeRegionDirective (CodeRegionDirective region)
1479                 {
1480                         switch (region.RegionMode) {
1481                                 case CodeRegionMode.Start:
1482                                         Output.Write ("#region ");
1483                                         Output.WriteLine (region.RegionText);
1484                                         return;
1485                                 case CodeRegionMode.End:
1486                                         Output.WriteLine ("#endregion");
1487                                         return;
1488                         }
1489                 }
1490
1491                 void GenerateGenericsParameters (CodeTypeParameterCollection parameters)
1492                 {
1493                         int count = parameters.Count;
1494                         if (count == 0)
1495                                 return;
1496
1497                         Output.Write ('<');
1498                         for (int i = 0; i < count - 1; ++i) {
1499                                 Output.Write (parameters [i].Name);
1500                                 Output.Write (", ");
1501                         }
1502                         Output.Write (parameters [count - 1].Name);
1503                         Output.Write ('>');
1504                 }
1505
1506                 void GenerateGenericsConstraints (CodeTypeParameterCollection parameters)
1507                 {
1508                         int count = parameters.Count;
1509                         if (count == 0)
1510                                 return;
1511
1512                         bool indented = false;
1513
1514                         for (int i = 0; i < count; i++) {
1515                                 CodeTypeParameter p = parameters [i];
1516                                 bool hasConstraints = (p.Constraints.Count != 0);
1517                                 Output.WriteLine ();
1518                                 if (!hasConstraints && !p.HasConstructorConstraint)
1519                                         continue;
1520
1521                                 if (!indented) {
1522                                         ++Indent;
1523                                         indented = true;
1524                                 }
1525
1526                                 Output.Write ("where ");
1527                                 Output.Write (p.Name);
1528                                 Output.Write (" : ");
1529
1530                                 for (int j = 0; j < p.Constraints.Count; j++) {
1531                                         if (j > 0)
1532                                                 Output.Write (", ");
1533                                         OutputType (p.Constraints [j]);
1534                                 }
1535
1536                                 if (p.HasConstructorConstraint) {
1537                                         if (hasConstraints)
1538                                                 Output.Write (", ");
1539                                         Output.Write ("new");
1540                                         if (hasConstraints)
1541                                                 Output.Write (" ");
1542                                         Output.Write ("()");
1543                                 }
1544                         }
1545
1546                         if (indented)
1547                                 --Indent;
1548                 }
1549
1550                 string GetTypeArguments (CodeTypeReferenceCollection collection)
1551                 {
1552                         StringBuilder sb = new StringBuilder (" <");
1553                         foreach (CodeTypeReference r in collection) {
1554                                 sb.Append (GetTypeOutput (r));
1555                                 sb.Append (", ");
1556                         }
1557                         sb.Length--;
1558                         sb [sb.Length - 1] = '>';
1559                         return sb.ToString ();
1560                 }
1561
1562                 private void OutputTypeArguments (CodeTypeReferenceCollection typeArguments, StringBuilder sb, int count)
1563                 {
1564                         if (count == 0) {
1565                                 return;
1566                         } else if (typeArguments.Count == 0) {
1567                                 // generic type definition
1568                                 sb.Append ("<>");
1569                                 return;
1570                         }
1571
1572                         sb.Append ('<');
1573
1574                         // write first type argument
1575                         sb.Append (GetTypeOutput (typeArguments[0]));
1576                         // subsequent type argument are prefixed by ', ' separator
1577                         for (int i = 1; i < count; i++) {
1578                                 sb.Append (", ");
1579                                 sb.Append (GetTypeOutput (typeArguments[i]));
1580                         }
1581
1582                         sb.Append ('>');
1583                 }
1584 #endif
1585
1586 #if false
1587                 //[MonoTODO]
1588                 public override void ValidateIdentifier (string identifier)
1589                 {
1590                 }
1591 #endif
1592
1593                 private string GetSafeName (string id)
1594                 {
1595                         if (keywordsTable == null) {
1596                                 FillKeywordTable ();
1597                         }
1598                         if (keywordsTable.Contains (id)) {
1599                                 return "@" + id;
1600                         } else {
1601                                 return id;
1602                         }
1603                 }
1604
1605                 static void FillKeywordTable ()
1606                 {
1607                         keywordsTable = new Hashtable ();
1608                         foreach (string keyword in keywords) {
1609                                 keywordsTable.Add (keyword, keyword);
1610                         }
1611                 }
1612
1613                 private static Hashtable keywordsTable;
1614                 private static string[] keywords = new string[] {
1615                         "abstract","event","new","struct","as","explicit","null","switch","base","extern",
1616                         "this","false","operator","throw","break","finally","out","true",
1617                         "fixed","override","try","case","params","typeof","catch","for",
1618                         "private","foreach","protected","checked","goto","public",
1619                         "unchecked","class","if","readonly","unsafe","const","implicit","ref",
1620                         "continue","in","return","using","virtual","default",
1621                         "interface","sealed","volatile","delegate","internal","do","is",
1622                         "sizeof","while","lock","stackalloc","else","static","enum",
1623                         "namespace",
1624                         "object","bool","byte","float","uint","char","ulong","ushort",
1625                         "decimal","int","sbyte","short","double","long","string","void",
1626 #if NET_2_0
1627                         "partial", "yield", "where"
1628 #endif
1629                 };
1630         }
1631 }