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 //   Ilker Cetinkaya (mail@ilker.de)
   8 //
   9 // (C) 2002 Ximian, Inc.
  10 //
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 namespace Mono.CSharp
  34 {
  35         using System;
  36         using System.CodeDom;
  37         using System.CodeDom.Compiler;
  38         using System.Globalization;
  39         using System.IO;
  40         using System.Reflection;
  41         using System.Collections;
  42         using System.Text;
  43         using System.Collections.Generic;
  44
  45         internal class CSharpCodeGenerator
  46                 : CodeGenerator
  47         {
  48                 IDictionary <string, string> providerOptions;
  49
  50                 // It is used for beautiful "for" syntax
  51                 bool dont_write_semicolon;
  52
  53                 //
  54                 // Constructors
  55                 //
  56                 public CSharpCodeGenerator()
  57                 {
  58                         dont_write_semicolon = false;
  59                 }
  60
  61                 public CSharpCodeGenerator (IDictionary <string, string> providerOptions)
  62                 {
  63                         this.providerOptions = providerOptions;
  64                 }
  65
  66                 protected IDictionary <string, string> ProviderOptions {
  67                         get { return providerOptions; }
  68                 }
  69
  70                 //
  71                 // Properties
  72                 //
  73                 protected override string NullToken {
  74                         get {
  75                                 return "null";
  76                         }
  77                 }
  78
  79                 //
  80                 // Methods
  81                 //
  82
  83                 protected override void GenerateArrayCreateExpression (CodeArrayCreateExpression expression)
  84                 {
  85                         //
  86                         // This tries to replicate MS behavior as good as
  87                         // possible.
  88                         //
  89                         // The Code-Array stuff in ms.net seems to be broken
  90                         // anyways, or I'm too stupid to understand it.
  91                         //
  92                         // I'm sick of it. If you try to develop array
  93                         // creations, test them on windows. If it works there
  94                         // but not in mono, drop me a note.  I'd be especially
  95                         // interested in jagged-multidimensional combinations
  96                         // with proper initialization :}
  97                         //
  98
  99                         TextWriter output = Output;
 100
 101                         output.Write ("new ");
 102
 103                         CodeExpressionCollection initializers = expression.Initializers;
 104                         CodeTypeReference createType = expression.CreateType;
 105
 106                         if (initializers.Count > 0) {
 107
 108                                 OutputType (createType);
 109
 110                                 if (expression.CreateType.ArrayRank == 0) {
 111                                         output.Write ("[]");
 112                                 }
 113
 114                                 OutputStartBrace ();
 115                                 ++Indent;
 116                                 OutputExpressionList (initializers, true);
 117                                 --Indent;
 118                                 output.Write ("}");
 119                         } else {
 120                                 CodeTypeReference arrayType = createType.ArrayElementType;
 121                                 while (arrayType != null) {
 122                                         createType = arrayType;
 123                                         arrayType = arrayType.ArrayElementType;
 124                                 }
 125
 126                                 OutputType (createType);
 127
 128                                 output.Write ('[');
 129
 130                                 CodeExpression size = expression.SizeExpression;
 131                                 if (size != null)
 132                                         GenerateExpression (size);
 133                                 else
 134                                         output.Write (expression.Size);
 135
 136                                 output.Write(']');
 137                         }
 138                 }
 139
 140                 protected override void GenerateBaseReferenceExpression (CodeBaseReferenceExpression expression)
 141                 {
 142                         Output.Write ("base");
 143                 }
 144
 145                 protected override void GenerateCastExpression (CodeCastExpression expression)
 146                 {
 147                         TextWriter output = Output;
 148                         output.Write ("((");
 149                         OutputType (expression.TargetType);
 150                         output.Write (")(");
 151                         GenerateExpression (expression.Expression);
 152                         output.Write ("))");
 153                 }
 154
 155
 156                 protected override void GenerateCompileUnitStart (CodeCompileUnit compileUnit)
 157                 {
 158                         GenerateComment (new CodeComment ("------------------------------------------------------------------------------"));
 159                         GenerateComment (new CodeComment (" <autogenerated>"));
 160                         GenerateComment (new CodeComment ("     This code was generated by a tool."));
 161                         GenerateComment (new CodeComment ("     Mono Runtime Version: " +  System.Environment.Version));
 162                         GenerateComment (new CodeComment (""));
 163                         GenerateComment (new CodeComment ("     Changes to this file may cause incorrect behavior and will be lost if "));
 164                         GenerateComment (new CodeComment ("     the code is regenerated."));
 165                         GenerateComment (new CodeComment (" </autogenerated>"));
 166                         GenerateComment (new CodeComment ("------------------------------------------------------------------------------"));
 167                         Output.WriteLine ();
 168                         base.GenerateCompileUnitStart (compileUnit);
 169                 }
 170
 171                 protected override void GenerateCompileUnit (CodeCompileUnit compileUnit)
 172                 {
 173                         GenerateCompileUnitStart (compileUnit);
 174
 175                         GenerateGlobalNamespace (compileUnit);
 176
 177                         if (compileUnit.AssemblyCustomAttributes.Count > 0) {
 178                                 OutputAttributes (compileUnit.AssemblyCustomAttributes,
 179                                         "assembly: ", false);
 180                                 Output.WriteLine ("");
 181                         }
 182
 183                         GenerateLocalNamespaces (compileUnit);
 184
 185                         GenerateCompileUnitEnd (compileUnit);
 186                 }
 187
 188                 private void GenerateGlobalNamespace (CodeCompileUnit compileUnit) {
 189                         CodeNamespace globalNamespace = null;
 190
 191                         foreach (CodeNamespace codeNamespace in compileUnit.Namespaces)
 192                                 if (string.IsNullOrEmpty (codeNamespace.Name))
 193                                         globalNamespace = codeNamespace;
 194
 195                         if (globalNamespace != null)
 196                                 GenerateNamespace (globalNamespace);
 197                 }
 198
 199                 private void GenerateLocalNamespaces (CodeCompileUnit compileUnit) {
 200                         foreach (CodeNamespace codeNamespace in compileUnit.Namespaces)
 201                                 if (!string.IsNullOrEmpty (codeNamespace.Name))
 202                                         GenerateNamespace (codeNamespace);
 203                 }
 204
 205                 protected override void GenerateDefaultValueExpression (CodeDefaultValueExpression e)
 206                 {
 207                         Output.Write ("default(");
 208                         OutputType (e.Type);
 209                         Output.Write (')');
 210                 }
 211
 212                 protected override void GenerateDelegateCreateExpression (CodeDelegateCreateExpression expression)
 213                 {
 214                         TextWriter output = Output;
 215
 216                         output.Write ("new ");
 217                         OutputType (expression.DelegateType);
 218                         output.Write ('(');
 219
 220                         CodeExpression targetObject = expression.TargetObject;
 221                         if (targetObject != null) {
 222                                 GenerateExpression (targetObject);
 223                                 Output.Write ('.');
 224                         }
 225                         output.Write (GetSafeName (expression.MethodName));
 226
 227                         output.Write (')');
 228                 }
 229
 230                 protected override void GenerateFieldReferenceExpression (CodeFieldReferenceExpression expression)
 231                 {
 232                         CodeExpression targetObject = expression.TargetObject;
 233                         if (targetObject != null) {
 234                                 GenerateExpression (targetObject);
 235                                 Output.Write ('.');
 236                         }
 237                         Output.Write (GetSafeName (expression.FieldName));
 238                 }
 239
 240                 protected override void GenerateArgumentReferenceExpression (CodeArgumentReferenceExpression expression)
 241                 {
 242                         Output.Write (GetSafeName (expression.ParameterName));
 243                 }
 244
 245                 protected override void GenerateVariableReferenceExpression (CodeVariableReferenceExpression expression)
 246                 {
 247                         Output.Write (GetSafeName (expression.VariableName));
 248                 }
 249
 250                 protected override void GenerateIndexerExpression (CodeIndexerExpression expression)
 251                 {
 252                         TextWriter output = Output;
 253
 254                         GenerateExpression (expression.TargetObject);
 255                         output.Write ('[');
 256                         OutputExpressionList (expression.Indices);
 257                         output.Write (']');
 258                 }
 259
 260                 protected override void GenerateArrayIndexerExpression (CodeArrayIndexerExpression expression)
 261                 {
 262                         TextWriter output = Output;
 263
 264                         GenerateExpression (expression.TargetObject);
 265                         output.Write ('[');
 266                         OutputExpressionList (expression.Indices);
 267                         output.Write (']');
 268                 }
 269
 270                 protected override void GenerateSnippetExpression (CodeSnippetExpression expression)
 271                 {
 272                         Output.Write (expression.Value);
 273                 }
 274
 275                 protected override void GenerateMethodInvokeExpression (CodeMethodInvokeExpression expression)
 276                 {
 277                         TextWriter output = Output;
 278
 279                         GenerateMethodReferenceExpression (expression.Method);
 280
 281                         output.Write ('(');
 282                         OutputExpressionList (expression.Parameters);
 283                         output.Write (')');
 284                 }
 285
 286                 protected override void GenerateMethodReferenceExpression (CodeMethodReferenceExpression expression)
 287                 {
 288                         if (expression.TargetObject != null)
 289                         {
 290                                 GenerateExpression (expression.TargetObject);
 291                                 Output.Write ('.');
 292                         };
 293                         Output.Write (GetSafeName (expression.MethodName));
 294                         if (expression.TypeArguments.Count > 0)
 295                                 Output.Write (GetTypeArguments (expression.TypeArguments));
 296                 }
 297
 298                 protected override void GenerateEventReferenceExpression (CodeEventReferenceExpression expression)
 299                 {
 300                         if (expression.TargetObject != null) {
 301                                 GenerateExpression (expression.TargetObject);
 302                                 Output.Write ('.');
 303                         }
 304                         Output.Write (GetSafeName (expression.EventName));
 305                 }
 306
 307                 protected override void GenerateDelegateInvokeExpression (CodeDelegateInvokeExpression expression)
 308                 {
 309                         if (expression.TargetObject != null)
 310                                 GenerateExpression (expression.TargetObject);
 311                         Output.Write ('(');
 312                         OutputExpressionList (expression.Parameters);
 313                         Output.Write (')');
 314                 }
 315
 316                 protected override void GenerateObjectCreateExpression (CodeObjectCreateExpression expression)
 317                 {
 318                         Output.Write ("new ");
 319                         OutputType (expression.CreateType);
 320                         Output.Write ('(');
 321                         OutputExpressionList (expression.Parameters);
 322                         Output.Write (')');
 323                 }
 324
 325                 protected override void GeneratePropertyReferenceExpression (CodePropertyReferenceExpression expression)
 326                 {
 327                         CodeExpression targetObject = expression.TargetObject;
 328                         if (targetObject != null) {
 329                                 GenerateExpression (targetObject);
 330                                 Output.Write ('.');
 331                         }
 332                         Output.Write (GetSafeName (expression.PropertyName ));
 333                 }
 334
 335                 protected override void GeneratePropertySetValueReferenceExpression (CodePropertySetValueReferenceExpression expression)
 336                 {
 337                         Output.Write ("value");
 338                 }
 339
 340                 protected override void GenerateThisReferenceExpression (CodeThisReferenceExpression expression)
 341                 {
 342                         Output.Write ("this");
 343                 }
 344
 345                 protected override void GenerateExpressionStatement (CodeExpressionStatement statement)
 346                 {
 347                         GenerateExpression (statement.Expression);
 348                         if (dont_write_semicolon)
 349                                 return;
 350                         Output.WriteLine(';');
 351                 }
 352
 353                 protected override void GenerateIterationStatement (CodeIterationStatement statement)
 354                 {
 355                         TextWriter output = Output;
 356
 357                         dont_write_semicolon = true;
 358                         output.Write ("for (");
 359                         GenerateStatement (statement.InitStatement);
 360                         output.Write ("; ");
 361                         GenerateExpression (statement.TestExpression);
 362                         output.Write ("; ");
 363                         GenerateStatement (statement.IncrementStatement);
 364                         output.Write (")");
 365                         dont_write_semicolon = false;
 366                         OutputStartBrace ();
 367                         ++Indent;
 368                         GenerateStatements (statement.Statements);
 369                         --Indent;
 370                         output.WriteLine ('}');
 371                 }
 372
 373                 protected override void GenerateThrowExceptionStatement (CodeThrowExceptionStatement statement)
 374                 {
 375                         Output.Write ("throw");
 376                         if (statement.ToThrow != null) {
 377                                 Output.Write (' ');
 378                                 GenerateExpression (statement.ToThrow);
 379                         }
 380                         Output.WriteLine (";");
 381                 }
 382
 383                 protected override void GenerateComment (CodeComment comment)
 384                 {
 385                         TextWriter output = Output;
 386
 387                         string commentChars = null;
 388
 389                         if (comment.DocComment) {
 390                                 commentChars = "///";
 391                         } else {
 392                                 commentChars = "//";
 393                         }
 394
 395                         output.Write (commentChars);
 396                         output.Write (' ');
 397                         string text = comment.Text;
 398
 399                         for (int i = 0; i < text.Length; i++) {
 400                                 output.Write (text[i]);
 401                                 if (text[i] == '\r') {
 402                                         if (i < (text.Length - 1) && text[i + 1] == '\n') {
 403                                                 continue;
 404                                         }
 405                                         output.Write (commentChars);
 406                                 } else if (text[i] == '\n') {
 407                                         output.Write (commentChars);
 408                                 }
 409                         }
 410
 411                         output.WriteLine ();
 412                 }
 413
 414                 protected override void GenerateMethodReturnStatement (CodeMethodReturnStatement statement)
 415                 {
 416                         TextWriter output = Output;
 417
 418                         if (statement.Expression != null) {
 419                                 output.Write ("return ");
 420                                 GenerateExpression (statement.Expression);
 421                                 output.WriteLine (";");
 422                         } else {
 423                                 output.WriteLine ("return;");
 424                         }
 425                 }
 426
 427                 protected override void GenerateConditionStatement (CodeConditionStatement statement)
 428                 {
 429                         TextWriter output = Output;
 430                         output.Write ("if (");
 431                         GenerateExpression (statement.Condition);
 432                         output.Write (")");
 433                         OutputStartBrace ();
 434
 435                         ++Indent;
 436                         GenerateStatements (statement.TrueStatements);
 437                         --Indent;
 438
 439                         CodeStatementCollection falses = statement.FalseStatements;
 440                         if (falses.Count > 0) {
 441                                 output.Write ('}');
 442                                 if (Options.ElseOnClosing)
 443                                         output.Write (' ');
 444                                 else
 445                                         output.WriteLine ();
 446                                 output.Write ("else");
 447                                 OutputStartBrace ();
 448                                 ++Indent;
 449                                 GenerateStatements (falses);
 450                                 --Indent;
 451                         }
 452                         output.WriteLine ('}');
 453                 }
 454
 455                 protected override void GenerateTryCatchFinallyStatement (CodeTryCatchFinallyStatement statement)
 456                 {
 457                         TextWriter output = Output;
 458                         CodeGeneratorOptions options = Options;
 459
 460                         output.Write ("try");
 461                         OutputStartBrace ();
 462                         ++Indent;
 463                         GenerateStatements (statement.TryStatements);
 464                         --Indent;
 465
 466                         foreach (CodeCatchClause clause in statement.CatchClauses) {
 467                                 output.Write ('}');
 468                                 if (options.ElseOnClosing)
 469                                         output.Write (' ');
 470                                 else
 471                                         output.WriteLine ();
 472                                 output.Write ("catch (");
 473                                 OutputTypeNamePair (clause.CatchExceptionType, GetSafeName(clause.LocalName));
 474                                 output.Write (")");
 475                                 OutputStartBrace ();
 476                                 ++Indent;
 477                                 GenerateStatements (clause.Statements);
 478                                 --Indent;
 479                         }
 480
 481                         CodeStatementCollection finallies = statement.FinallyStatements;
 482                         if (finallies.Count > 0) {
 483                                 output.Write ('}');
 484                                 if (options.ElseOnClosing)
 485                                         output.Write (' ');
 486                                 else
 487                                         output.WriteLine ();
 488                                 output.Write ("finally");
 489                                 OutputStartBrace ();
 490                                 ++Indent;
 491                                 GenerateStatements (finallies);
 492                                 --Indent;
 493                         }
 494
 495                         output.WriteLine('}');
 496                 }
 497
 498                 protected override void GenerateAssignStatement (CodeAssignStatement statement)
 499                 {
 500                         TextWriter output = Output;
 501                         GenerateExpression (statement.Left);
 502                         output.Write (" = ");
 503                         GenerateExpression (statement.Right);
 504                         if (dont_write_semicolon)
 505                                 return;
 506                         output.WriteLine (';');
 507                 }
 508
 509                 protected override void GenerateAttachEventStatement (CodeAttachEventStatement statement)
 510                 {
 511                         TextWriter output = Output;
 512
 513                         GenerateEventReferenceExpression (statement.Event);
 514                         output.Write (" += ");
 515                         GenerateExpression (statement.Listener);
 516                         output.WriteLine (';');
 517                 }
 518
 519                 protected override void GenerateRemoveEventStatement (CodeRemoveEventStatement statement)
 520                 {
 521                         TextWriter output = Output;
 522                         GenerateEventReferenceExpression (statement.Event);
 523                         output.Write (" -= ");
 524                         GenerateExpression (statement.Listener);
 525                         output.WriteLine (';');
 526                 }
 527
 528                 protected override void GenerateGotoStatement (CodeGotoStatement statement)
 529                 {
 530                         TextWriter output = Output;
 531
 532                         output.Write ("goto ");
 533                         output.Write (GetSafeName (statement.Label));
 534                         output.WriteLine (";");
 535                 }
 536
 537                 protected override void GenerateLabeledStatement (CodeLabeledStatement statement)
 538                 {
 539                         Indent--;
 540                         Output.Write (statement.Label);
 541                         Output.WriteLine (":");
 542                         Indent++;
 543
 544                         if (statement.Statement != null) {
 545                                 GenerateStatement (statement.Statement);
 546                         }
 547                 }
 548
 549                 protected override void GenerateVariableDeclarationStatement (CodeVariableDeclarationStatement statement)
 550                 {
 551                         TextWriter output = Output;
 552
 553                         OutputTypeNamePair (statement.Type, GetSafeName (statement.Name));
 554
 555                         CodeExpression initExpression = statement.InitExpression;
 556                         if (initExpression != null) {
 557                                 output.Write (" = ");
 558                                 GenerateExpression (initExpression);
 559                         }
 560
 561                         if (!dont_write_semicolon) {
 562                                 output.WriteLine (';');
 563                         }
 564                 }
 565
 566                 protected override void GenerateLinePragmaStart (CodeLinePragma linePragma)
 567                 {
 568                         Output.WriteLine ();
 569                         Output.Write ("#line ");
 570                         Output.Write (linePragma.LineNumber);
 571                         Output.Write (" \"");
 572                         Output.Write (linePragma.FileName);
 573                         Output.Write ("\"");
 574                         Output.WriteLine ();
 575                 }
 576
 577                 protected override void GenerateLinePragmaEnd (CodeLinePragma linePragma)
 578                 {
 579                         Output.WriteLine ();
 580                         Output.WriteLine ("#line default");
 581                         Output.WriteLine ("#line hidden");
 582                 }
 583
 584                 protected override void GenerateEvent (CodeMemberEvent eventRef, CodeTypeDeclaration declaration)
 585                 {
 586                         if (IsCurrentDelegate || IsCurrentEnum) {
 587                                 return;
 588                         }
 589
 590                         OutputAttributes (eventRef.CustomAttributes, null, false);
 591
 592                         if (eventRef.PrivateImplementationType == null) {
 593                                 OutputMemberAccessModifier (eventRef.Attributes);
 594                         }
 595
 596                         Output.Write ("event ");
 597
 598                         if (eventRef.PrivateImplementationType != null) {
 599                                 OutputTypeNamePair (eventRef.Type,
 600                                         eventRef.PrivateImplementationType.BaseType + "." +
 601                                         eventRef.Name);
 602                         } else {
 603                                 OutputTypeNamePair (eventRef.Type, GetSafeName (eventRef.Name));
 604                         }
 605                         Output.WriteLine (';');
 606                 }
 607
 608                 protected override void GenerateField (CodeMemberField field)
 609                 {
 610                         if (IsCurrentDelegate || IsCurrentInterface) {
 611                                 return;
 612                         }
 613
 614                         TextWriter output = Output;
 615
 616                         OutputAttributes (field.CustomAttributes, null, false);
 617
 618                         if (IsCurrentEnum) {
 619                                 Output.Write (GetSafeName (field.Name));
 620                         } else {
 621                                 MemberAttributes attributes = field.Attributes;
 622                                 OutputMemberAccessModifier (attributes);
 623                                 OutputVTableModifier (attributes);
 624                                 OutputFieldScopeModifier (attributes);
 625
 626                                 OutputTypeNamePair (field.Type, GetSafeName (field.Name));
 627                         }
 628
 629                         CodeExpression initExpression = field.InitExpression;
 630                         if (initExpression != null) {
 631                                 output.Write (" = ");
 632                                 GenerateExpression (initExpression);
 633                         }
 634
 635                         if (IsCurrentEnum)
 636                                 output.WriteLine (',');
 637                         else
 638                                 output.WriteLine (';');
 639                 }
 640
 641                 protected override void GenerateSnippetMember (CodeSnippetTypeMember member)
 642                 {
 643                         Output.Write (member.Text);
 644                 }
 645
 646                 protected override void GenerateEntryPointMethod (CodeEntryPointMethod method,
 647                                                                   CodeTypeDeclaration declaration)
 648                 {
 649                         OutputAttributes (method.CustomAttributes, null, false);
 650
 651                         Output.Write ("public static ");
 652                         OutputType (method.ReturnType);
 653                         Output.Write (" Main()");
 654                         OutputStartBrace ();
 655                         Indent++;
 656                         GenerateStatements (method.Statements);
 657                         Indent--;
 658                         Output.WriteLine ("}");
 659                 }
 660
 661                 protected override void GenerateMethod (CodeMemberMethod method,
 662                                                         CodeTypeDeclaration declaration)
 663                 {
 664                         if (IsCurrentDelegate || IsCurrentEnum) {
 665                                 return;
 666                         }
 667
 668                         TextWriter output = Output;
 669
 670                         OutputAttributes (method.CustomAttributes, null, false);
 671
 672                         OutputAttributes (method.ReturnTypeCustomAttributes,
 673                                 "return: ", false);
 674
 675                         MemberAttributes attributes = method.Attributes;
 676
 677                         if (!IsCurrentInterface) {
 678                                 if (method.PrivateImplementationType == null) {
 679                                         OutputMemberAccessModifier (attributes);
 680                                         OutputVTableModifier (attributes);
 681                                         OutputMemberScopeModifier (attributes);
 682                                 }
 683                         } else {
 684                                 OutputVTableModifier (attributes);
 685                         }
 686
 687                         OutputType (method.ReturnType);
 688                         output.Write (' ');
 689
 690                         CodeTypeReference privateType = method.PrivateImplementationType;
 691                         if (privateType != null) {
 692                                 output.Write (privateType.BaseType);
 693                                 output.Write ('.');
 694                         }
 695                         output.Write (GetSafeName (method.Name));
 696
 697                         GenerateGenericsParameters (method.TypeParameters);
 698
 699                         output.Write ('(');
 700                         OutputParameters (method.Parameters);
 701                         output.Write (')');
 702
 703                         GenerateGenericsConstraints (method.TypeParameters);
 704
 705                         if (IsAbstract (attributes) || declaration.IsInterface)
 706                                 output.WriteLine (';');
 707                         else {
 708                                 OutputStartBrace ();
 709                                 ++Indent;
 710                                 GenerateStatements (method.Statements);
 711                                 --Indent;
 712                                 output.WriteLine ('}');
 713                         }
 714                 }
 715
 716                 static bool IsAbstract (MemberAttributes attributes)
 717                 {
 718                         return (attributes & MemberAttributes.ScopeMask) == MemberAttributes.Abstract;
 719                 }
 720
 721                 protected override void GenerateProperty (CodeMemberProperty property,
 722                                                           CodeTypeDeclaration declaration)
 723                 {
 724                         if (IsCurrentDelegate || IsCurrentEnum) {
 725                                 return;
 726                         }
 727
 728                         TextWriter output = Output;
 729
 730                         OutputAttributes (property.CustomAttributes, null, false);
 731
 732                         MemberAttributes attributes = property.Attributes;
 733
 734                         if (!IsCurrentInterface) {
 735                                 if (property.PrivateImplementationType == null) {
 736                                         OutputMemberAccessModifier (attributes);
 737                                         OutputVTableModifier (attributes);
 738                                         OutputMemberScopeModifier (attributes);
 739                                 }
 740                         } else {
 741                                 OutputVTableModifier (attributes);
 742                         }
 743
 744                         OutputType (property.Type);
 745                         output.Write (' ');
 746
 747                         if (!IsCurrentInterface && property.PrivateImplementationType != null) {
 748                                 output.Write (property.PrivateImplementationType.BaseType);
 749                                 output.Write ('.');
 750                         }
 751
 752                         // only consider property indexer if name is Item (case-insensitive
 753                         // comparison) AND property has parameters
 754                         if (string.Compare(property.Name, "Item", true, CultureInfo.InvariantCulture) == 0 && property.Parameters.Count > 0) {
 755                                 output.Write ("this[");
 756                                 OutputParameters(property.Parameters);
 757                                 output.Write(']');
 758                         } else {
 759                                 output.Write (GetSafeName (property.Name));
 760                         }
 761                         OutputStartBrace ();
 762                         ++Indent;
 763
 764                         if (declaration.IsInterface || IsAbstract (property.Attributes))
 765                         {
 766                                 if (property.HasGet) output.WriteLine("get;");
 767                                 if (property.HasSet) output.WriteLine("set;");
 768                         }
 769                         else
 770                         {
 771                                 if (property.HasGet)
 772                                 {
 773                                         output.Write ("get");
 774                                         OutputStartBrace ();
 775                                         ++Indent;
 776
 777                                         GenerateStatements (property.GetStatements);
 778
 779                                         --Indent;
 780                                         output.WriteLine ('}');
 781                                 }
 782
 783                                 if (property.HasSet)
 784                                 {
 785                                         output.Write ("set");
 786                                         OutputStartBrace ();
 787                                         ++Indent;
 788
 789                                         GenerateStatements (property.SetStatements);
 790
 791                                         --Indent;
 792                                         output.WriteLine ('}');
 793                                 }
 794                         }
 795
 796                         --Indent;
 797                         output.WriteLine ('}');
 798                 }
 799
 800                 protected override void GenerateConstructor (CodeConstructor constructor, CodeTypeDeclaration declaration)
 801                 {
 802                         if (IsCurrentDelegate || IsCurrentEnum || IsCurrentInterface) {
 803                                 return;
 804                         }
 805
 806                         OutputAttributes (constructor.CustomAttributes, null, false);
 807
 808                         OutputMemberAccessModifier (constructor.Attributes);
 809                         Output.Write (GetSafeName (CurrentTypeName) + "(");
 810                         OutputParameters (constructor.Parameters);
 811                         Output.Write (")");
 812                         if (constructor.BaseConstructorArgs.Count > 0) {
 813                                 Output.WriteLine (" : ");
 814                                 Indent += 2;
 815                                 Output.Write ("base(");
 816                                 OutputExpressionList (constructor.BaseConstructorArgs);
 817                                 Output.Write (')');
 818                                 Indent -= 2;
 819                         }
 820                         if (constructor.ChainedConstructorArgs.Count > 0) {
 821                                 Output.WriteLine (" : ");
 822                                 Indent += 2;
 823                                 Output.Write("this(");
 824                                 OutputExpressionList (constructor.ChainedConstructorArgs);
 825                                 Output.Write(')');
 826                                 Indent -= 2;
 827                         }
 828                         OutputStartBrace ();
 829                         Indent++;
 830                         GenerateStatements (constructor.Statements);
 831                         Indent--;
 832                         Output.WriteLine ('}');
 833                 }
 834
 835                 protected override void GenerateTypeConstructor (CodeTypeConstructor constructor)
 836                 {
 837                         if (IsCurrentDelegate || IsCurrentEnum || IsCurrentInterface) {
 838                                 return;
 839                         }
 840
 841                         OutputAttributes (constructor.CustomAttributes, null, false);
 842
 843                         Output.Write ("static " + GetSafeName (CurrentTypeName) + "()");
 844                         OutputStartBrace ();
 845                         Indent++;
 846                         GenerateStatements (constructor.Statements);
 847                         Indent--;
 848                         Output.WriteLine ('}');
 849                 }
 850
 851                 protected override void GenerateTypeStart(CodeTypeDeclaration declaration)
 852                 {
 853                         TextWriter output = Output;
 854
 855                         OutputAttributes (declaration.CustomAttributes, null, false);
 856
 857                         if (!IsCurrentDelegate) {
 858                                 OutputTypeAttributes (declaration);
 859
 860                                 output.Write (GetSafeName (declaration.Name));
 861
 862                                 GenerateGenericsParameters (declaration.TypeParameters);
 863
 864                                 IEnumerator enumerator = declaration.BaseTypes.GetEnumerator ();
 865                                 if (enumerator.MoveNext ()) {
 866                                         CodeTypeReference type = (CodeTypeReference) enumerator.Current;
 867
 868                                         output.Write (" : ");
 869                                         OutputType (type);
 870
 871                                         while (enumerator.MoveNext ()) {
 872                                                 type = (CodeTypeReference) enumerator.Current;
 873
 874                                                 output.Write (", ");
 875                                                 OutputType (type);
 876                                         }
 877                                 }
 878
 879                                 GenerateGenericsConstraints (declaration.TypeParameters);
 880                                 OutputStartBrace ();
 881                                 ++Indent;
 882                         } else {
 883                                 if ((declaration.TypeAttributes & TypeAttributes.VisibilityMask) == TypeAttributes.Public) {
 884                                         output.Write ("public ");
 885                                 }
 886
 887                                 CodeTypeDelegate delegateDecl = (CodeTypeDelegate) declaration;
 888                                 output.Write ("delegate ");
 889                                 OutputType (delegateDecl.ReturnType);
 890                                 output.Write (" ");
 891                                 output.Write (GetSafeName (declaration.Name));
 892                                 output.Write ("(");
 893                                 OutputParameters (delegateDecl.Parameters);
 894                                 output.WriteLine (");");
 895                         }
 896                 }
 897
 898                 protected override void GenerateTypeEnd (CodeTypeDeclaration declaration)
 899                 {
 900                         if (!IsCurrentDelegate) {
 901                                 --Indent;
 902                                 Output.WriteLine ("}");
 903                         }
 904                 }
 905
 906                 protected override void GenerateNamespaceStart (CodeNamespace ns)
 907                 {
 908                         TextWriter output = Output;
 909
 910                         string name = ns.Name;
 911                         if (name != null && name.Length != 0) {
 912                                 output.Write ("namespace ");
 913                                 output.Write (GetSafeName (name));
 914                                 OutputStartBrace ();
 915                                 ++Indent;
 916                         }
 917                 }
 918
 919                 protected override void GenerateNamespaceEnd (CodeNamespace ns)
 920                 {
 921                         string name = ns.Name;
 922                         if (name != null && name.Length != 0) {
 923                                 --Indent;
 924                                 Output.WriteLine ("}");
 925                         }
 926                 }
 927
 928                 protected override void GenerateNamespaceImport (CodeNamespaceImport import)
 929                 {
 930                         TextWriter output = Output;
 931
 932                         output.Write ("using ");
 933                         output.Write (GetSafeName (import.Namespace));
 934                         output.WriteLine (';');
 935                 }
 936
 937                 protected override void GenerateAttributeDeclarationsStart (CodeAttributeDeclarationCollection attributes)
 938                 {
 939                         Output.Write ('[');
 940                 }
 941
 942                 protected override void GenerateAttributeDeclarationsEnd (CodeAttributeDeclarationCollection attributes)
 943                 {
 944                         Output.Write (']');
 945                 }
 946
 947                 private void OutputStartBrace ()
 948                 {
 949                         if (Options.BracingStyle == "C") {
 950                                 Output.WriteLine ("");
 951                                 Output.WriteLine ("{");
 952                         } else {
 953                                 Output.WriteLine (" {");
 954                         }
 955                 }
 956
 957                 private void OutputAttributes (CodeAttributeDeclarationCollection attributes, string prefix, bool inline)
 958                 {
 959                         bool params_set = false;
 960
 961                         foreach (CodeAttributeDeclaration att in attributes) {
 962                                 if (att.Name == "System.ParamArrayAttribute") {
 963                                         params_set = true;
 964                                         continue;
 965                                 }
 966
 967                                 GenerateAttributeDeclarationsStart (attributes);
 968                                 if (prefix != null) {
 969                                         Output.Write (prefix);
 970                                 }
 971                                 OutputAttributeDeclaration (att);
 972                                 GenerateAttributeDeclarationsEnd (attributes);
 973                                 if (inline) {
 974                                         Output.Write (" ");
 975                                 } else {
 976                                         Output.WriteLine ();
 977                                 }
 978                         }
 979
 980                         if (params_set) {
 981                                 if (prefix != null)
 982                                         Output.Write (prefix);
 983                                 Output.Write ("params");
 984                                 if (inline)
 985                                         Output.Write (" ");
 986                                 else
 987                                         Output.WriteLine ();
 988                         }
 989                 }
 990
 991                 private void OutputAttributeDeclaration (CodeAttributeDeclaration attribute)
 992                 {
 993                         Output.Write (attribute.Name.Replace ('+', '.'));
 994                         Output.Write ('(');
 995                         IEnumerator enumerator = attribute.Arguments.GetEnumerator ();
 996                         if (enumerator.MoveNext ()) {
 997                                 CodeAttributeArgument argument = (CodeAttributeArgument) enumerator.Current;
 998                                 OutputAttributeArgument (argument);
 999
1000                                 while (enumerator.MoveNext ()) {
1001                                         Output.Write (", ");
1002                                         argument = (CodeAttributeArgument) enumerator.Current;
1003                                         OutputAttributeArgument (argument);
1004                                 }
1005                         }
1006                         Output.Write (')');
1007                 }
1008
1009                 protected override void OutputType (CodeTypeReference type)
1010                 {
1011                         Output.Write (GetTypeOutput (type));
1012                 }
1013
1014                 private void OutputVTableModifier (MemberAttributes attributes)
1015                 {
1016                         if ((attributes & MemberAttributes.VTableMask) == MemberAttributes.New) {
1017                                 Output.Write ("new ");
1018                         }
1019                 }
1020
1021                 protected override void OutputFieldScopeModifier (MemberAttributes attributes)
1022                 {
1023                         switch (attributes & MemberAttributes.ScopeMask) {
1024                                 case MemberAttributes.Static:
1025                                         Output.Write ("static ");
1026                                         break;
1027                                 case MemberAttributes.Const:
1028                                         Output.Write ("const ");
1029                                         break;
1030                         }
1031                 }
1032
1033
1034                 // Note: this method should in fact be private as in .NET 2.0, the
1035                 // CSharpCodeGenerator no longer derives from CodeGenerator but we
1036                 // still need to make this change.
1037                 protected override void OutputMemberAccessModifier (MemberAttributes attributes)
1038                 {
1039                         switch (attributes & MemberAttributes.AccessMask) {
1040                                 case MemberAttributes.Assembly:
1041                                 case MemberAttributes.FamilyAndAssembly:
1042                                         Output.Write ("internal ");
1043                                         break;
1044                                 case MemberAttributes.Family:
1045                                         Output.Write ("protected ");
1046                                         break;
1047                                 case MemberAttributes.FamilyOrAssembly:
1048                                         Output.Write ("protected internal ");
1049                                         break;
1050                                 case MemberAttributes.Private:
1051                                         Output.Write ("private ");
1052                                         break;
1053                                 case MemberAttributes.Public:
1054                                         Output.Write ("public ");
1055                                         break;
1056                         }
1057                 }
1058
1059                 // Note: this method should in fact be private as in .NET 2.0, the
1060                 // CSharpCodeGenerator no longer derives from CodeGenerator but we
1061                 // still need to make this change.
1062                 protected override void OutputMemberScopeModifier (MemberAttributes attributes)
1063                 {
1064                         switch (attributes & MemberAttributes.ScopeMask) {
1065                                 case MemberAttributes.Abstract:
1066                                         Output.Write ("abstract ");
1067                                         break;
1068                                 case MemberAttributes.Final:
1069                                         // do nothing
1070                                         break;
1071                                 case MemberAttributes.Static:
1072                                         Output.Write ("static ");
1073                                         break;
1074                                 case MemberAttributes.Override:
1075                                         Output.Write ("override ");
1076                                         break;
1077                                 default:
1078                                         MemberAttributes access = attributes & MemberAttributes.AccessMask;
1079                                         if (access == MemberAttributes.Assembly || access == MemberAttributes.Family || access == MemberAttributes.Public) {
1080                                                 Output.Write ("virtual ");
1081                                         }
1082                                         break;
1083                         }
1084                 }
1085
1086                 private void OutputTypeAttributes (CodeTypeDeclaration declaration)
1087                 {
1088                         TextWriter output = Output;
1089                         TypeAttributes attributes = declaration.TypeAttributes;
1090
1091                         switch (attributes & TypeAttributes.VisibilityMask) {
1092                                 case TypeAttributes.Public:
1093                                 case TypeAttributes.NestedPublic:
1094                                         output.Write ("public ");
1095                                         break;
1096                                 case TypeAttributes.NestedPrivate:
1097                                         output.Write ("private ");
1098                                         break;
1099                                 case TypeAttributes.NotPublic:
1100                                 case TypeAttributes.NestedFamANDAssem:
1101                                 case TypeAttributes.NestedAssembly:
1102                                         output.Write ("internal ");
1103                                         break;
1104                                 case TypeAttributes.NestedFamily:
1105                                         output.Write ("protected ");
1106                                         break;
1107                                 case TypeAttributes.NestedFamORAssem:
1108                                         output.Write ("protected internal ");
1109                                         break;
1110                         }
1111
1112                         if ((declaration.Attributes & MemberAttributes.New) != 0)
1113                                 output.Write ("new ");
1114
1115                         if (declaration.IsStruct) {
1116                                 if (declaration.IsPartial) {
1117                                         output.Write ("partial ");
1118                                 }
1119                                 output.Write ("struct ");
1120                         } else if (declaration.IsEnum) {
1121                                 output.Write ("enum ");
1122                         } else {
1123                                 if ((attributes & TypeAttributes.Interface) != 0) {
1124                                         if (declaration.IsPartial) {
1125                                                 output.Write ("partial ");
1126                                         }
1127                                         output.Write ("interface ");
1128                                 } else {
1129                                         if ((attributes & TypeAttributes.Sealed) != 0)
1130                                                 output.Write ("sealed ");
1131                                         if ((attributes & TypeAttributes.Abstract) != 0)
1132                                                 output.Write ("abstract ");
1133                                         if (declaration.IsPartial) {
1134                                                 output.Write ("partial ");
1135                                         }
1136                                         output.Write ("class ");
1137                                 }
1138                         }
1139                 }
1140
1141                 [MonoTODO ("Implement missing special characters")]
1142                 protected override string QuoteSnippetString (string value)
1143                 {
1144                         // FIXME: this is weird, but works.
1145                         string output = value.Replace ("\\", "\\\\");
1146                         output = output.Replace ("\"", "\\\"");
1147                         output = output.Replace ("\t", "\\t");
1148                         output = output.Replace ("\r", "\\r");
1149                         output = output.Replace ("\n", "\\n");
1150
1151                         return "\"" + output + "\"";
1152                 }
1153
1154                 protected override void GeneratePrimitiveExpression(CodePrimitiveExpression e)
1155                 {
1156                         if (e.Value is char) {
1157                                 this.GenerateCharValue ((char) e.Value);
1158                         } else if (e.Value is ushort) {
1159                                 ushort uc = (ushort) e.Value;
1160                                 Output.Write (uc.ToString(CultureInfo.InvariantCulture));
1161                         } else if (e.Value is uint) {
1162                                 uint ui = (uint) e.Value;
1163                                 Output.Write (ui.ToString(CultureInfo.InvariantCulture));
1164                                 Output.Write ("u");
1165                         } else if (e.Value is ulong) {
1166                                 ulong ul = (ulong) e.Value;
1167                                 Output.Write (ul.ToString(CultureInfo.InvariantCulture));
1168                                 Output.Write ("ul");
1169                         } else if (e.Value is sbyte) {
1170                                 sbyte sb = (sbyte) e.Value;
1171                                 Output.Write (sb.ToString(CultureInfo.InvariantCulture));
1172                         } else {
1173                                 base.GeneratePrimitiveExpression (e);
1174                         }
1175                 }
1176
1177                 private void GenerateCharValue (char c)
1178                 {
1179                         Output.Write ('\'');
1180
1181                         switch (c) {
1182                                 case '\0':
1183                                         Output.Write ("\\0");
1184                                         break;
1185                                 case '\t':
1186                                         Output.Write ("\\t");
1187                                         break;
1188                                 case '\n':
1189                                         Output.Write ("\\n");
1190                                         break;
1191                                 case '\r':
1192                                         Output.Write ("\\r");
1193                                         break;
1194                                 case '"':
1195                                         Output.Write ("\\\"");
1196                                         break;
1197                                 case '\'':
1198                                         Output.Write ("\\'");
1199                                         break;
1200                                 case '\\':
1201                                         Output.Write ("\\\\");
1202                                         break;
1203                                 case '\u2028':
1204                                         Output.Write ("\\u");
1205                                         Output.Write (((int) c).ToString ("X4", CultureInfo.InvariantCulture));
1206                                         break;
1207                                 case '\u2029':
1208                                         Output.Write ("\\u");
1209                                         Output.Write (((int) c).ToString ("X4", CultureInfo.InvariantCulture));
1210                                         break;
1211                                 default:
1212                                         Output.Write (c);
1213                                         break;
1214                         }
1215
1216                         Output.Write ('\'');
1217                 }
1218
1219                 protected override void GenerateSingleFloatValue (float f)
1220                 {
1221                         base.GenerateSingleFloatValue (f);
1222                         base.Output.Write ('F');
1223                 }
1224
1225                 protected override void GenerateDecimalValue (decimal d)
1226                 {
1227                         base.GenerateDecimalValue (d);
1228                         base.Output.Write ('m');
1229                 }
1230
1231                 protected override void GenerateParameterDeclarationExpression (CodeParameterDeclarationExpression e)
1232                 {
1233                         OutputAttributes (e.CustomAttributes, null, true);
1234                         OutputDirection (e.Direction);
1235                         OutputType (e.Type);
1236                         Output.Write (' ');
1237                         Output.Write (GetSafeName (e.Name));
1238                 }
1239
1240                 protected override void GenerateTypeOfExpression (CodeTypeOfExpression e)
1241                 {
1242                         Output.Write ("typeof(");
1243                         OutputType (e.Type);
1244                         Output.Write (")");
1245                 }
1246
1247                 /*
1248                  * ICodeGenerator
1249                  */
1250
1251                 protected override string CreateEscapedIdentifier (string value)
1252                 {
1253                         if (value == null)
1254                                 throw new NullReferenceException ("Argument identifier is null.");
1255                         return GetSafeName (value);
1256                 }
1257
1258                 protected override string CreateValidIdentifier (string value)
1259                 {
1260                         if (value == null)
1261                                 throw new NullReferenceException ();
1262
1263                         if (keywordsTable == null)
1264                                 FillKeywordTable ();
1265
1266                         if (keywordsTable.Contains (value))
1267                                 return "_" + value;
1268                         else
1269                                 return value;
1270                 }
1271
1272                 protected override string GetTypeOutput (CodeTypeReference type)
1273                 {
1274                         if ((type.Options & CodeTypeReferenceOptions.GenericTypeParameter) != 0)
1275                                 return type.BaseType;
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                                 case "system.byte":
1328                                         typeOutput = "byte";
1329                                         break;
1330                                 case "system.sbyte":
1331                                         typeOutput = "sbyte";
1332                                         break;
1333                                 case "system.decimal":
1334                                         typeOutput = "decimal";
1335                                         break;
1336                                 case "system.double":
1337                                         typeOutput = "double";
1338                                         break;
1339                                 case "system.single":
1340                                         typeOutput = "float";
1341                                         break;
1342                                 case "system.uint16":
1343                                         typeOutput = "ushort";
1344                                         break;
1345                                 case "system.uint32":
1346                                         typeOutput = "uint";
1347                                         break;
1348                                 case "system.uint64":
1349                                         typeOutput = "ulong";
1350                                         break;
1351                                 default:
1352                                         StringBuilder sb = new StringBuilder (baseType.Length);
1353                                         if ((type.Options & CodeTypeReferenceOptions.GlobalReference) != 0) {
1354                                                 sb.Append ("global::");
1355                                         }
1356
1357                                         int lastProcessedChar = 0;
1358                                         for (int i = 0; i < baseType.Length; i++) {
1359                                                 char currentChar = baseType[i];
1360                                                 if (currentChar != '+' && currentChar != '.') {
1361                                                         if (currentChar == '`') {
1362                                                                 sb.Append (CreateEscapedIdentifier (baseType.Substring (
1363                                                                         lastProcessedChar, i - lastProcessedChar)));
1364                                                                 // skip ` character
1365                                                                 i++;
1366                                                                 // determine number of type arguments to output
1367                                                                 int end = i;
1368                                                                 while (end < baseType.Length && Char.IsDigit (baseType [end]))
1369                                                                         end++;
1370                                                                 int typeArgCount = Int32.Parse (baseType.Substring (i, end - i));
1371                                                                 // output type arguments
1372                                                                 OutputTypeArguments (type.TypeArguments, sb, typeArgCount);
1373                                                                 // skip type argument indicator
1374                                                                 i = end;
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                                         break;
1402                         }
1403                         return typeOutput;
1404                 }
1405
1406                 static bool is_identifier_start_character (char c)
1407                 {
1408                         return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == '@' || Char.IsLetter (c);
1409                 }
1410
1411                 static bool is_identifier_part_character (char c)
1412                 {
1413                         return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || (c >= '0' && c <= '9') || Char.IsLetter (c);
1414                 }
1415
1416                 protected override bool IsValidIdentifier (string identifier)
1417                 {
1418                         if (identifier == null || identifier.Length == 0)
1419                                 return false;
1420
1421                         if (keywordsTable == null)
1422                                 FillKeywordTable ();
1423
1424                         if (keywordsTable.Contains (identifier))
1425                                 return false;
1426
1427                         if (!is_identifier_start_character (identifier [0]))
1428                                 return false;
1429
1430                         for (int i = 1; i < identifier.Length; i ++)
1431                                 if (! is_identifier_part_character (identifier [i]))
1432                                         return false;
1433
1434                         return true;
1435                 }
1436
1437                 protected override bool Supports (GeneratorSupport supports)
1438                 {
1439                         return true;
1440                 }
1441
1442                 protected override void GenerateDirectives (CodeDirectiveCollection directives)
1443                 {
1444                         foreach (CodeDirective d in directives) {
1445                                 if (d is CodeChecksumPragma) {
1446                                         GenerateCodeChecksumPragma ((CodeChecksumPragma)d);
1447                                         continue;
1448                                 }
1449                                 if (d is CodeRegionDirective) {
1450                                         GenerateCodeRegionDirective ((CodeRegionDirective)d);
1451                                         continue;
1452                                 }
1453                                 throw new NotImplementedException ("Unknown CodeDirective");
1454                         }
1455                 }
1456
1457                 void GenerateCodeChecksumPragma (CodeChecksumPragma pragma)
1458                 {
1459                         Output.Write ("#pragma checksum ");
1460                         Output.Write (QuoteSnippetString (pragma.FileName));
1461                         Output.Write (" \"");
1462                         Output.Write (pragma.ChecksumAlgorithmId.ToString ("B"));
1463                         Output.Write ("\" \"");
1464                         if (pragma.ChecksumData != null) {
1465                                 foreach (byte b in pragma.ChecksumData) {
1466                                         Output.Write (b.ToString ("X2"));
1467                                 }
1468                         }
1469                         Output.WriteLine ("\"");
1470                 }
1471
1472                 void GenerateCodeRegionDirective (CodeRegionDirective region)
1473                 {
1474                         switch (region.RegionMode) {
1475                                 case CodeRegionMode.Start:
1476                                         Output.Write ("#region ");
1477                                         Output.WriteLine (region.RegionText);
1478                                         return;
1479                                 case CodeRegionMode.End:
1480                                         Output.WriteLine ("#endregion");
1481                                         return;
1482                         }
1483                 }
1484
1485                 void GenerateGenericsParameters (CodeTypeParameterCollection parameters)
1486                 {
1487                         int count = parameters.Count;
1488                         if (count == 0)
1489                                 return;
1490
1491                         Output.Write ('<');
1492                         for (int i = 0; i < count - 1; ++i) {
1493                                 Output.Write (parameters [i].Name);
1494                                 Output.Write (", ");
1495                         }
1496                         Output.Write (parameters [count - 1].Name);
1497                         Output.Write ('>');
1498                 }
1499
1500                 void GenerateGenericsConstraints (CodeTypeParameterCollection parameters)
1501                 {
1502                         int count = parameters.Count;
1503                         if (count == 0)
1504                                 return;
1505
1506                         bool indented = false;
1507
1508                         for (int i = 0; i < count; i++) {
1509                                 CodeTypeParameter p = parameters [i];
1510                                 bool hasConstraints = (p.Constraints.Count != 0);
1511                                 Output.WriteLine ();
1512                                 if (!hasConstraints && !p.HasConstructorConstraint)
1513                                         continue;
1514
1515                                 if (!indented) {
1516                                         ++Indent;
1517                                         indented = true;
1518                                 }
1519
1520                                 Output.Write ("where ");
1521                                 Output.Write (p.Name);
1522                                 Output.Write (" : ");
1523
1524                                 for (int j = 0; j < p.Constraints.Count; j++) {
1525                                         if (j > 0)
1526                                                 Output.Write (", ");
1527                                         OutputType (p.Constraints [j]);
1528                                 }
1529
1530                                 if (p.HasConstructorConstraint) {
1531                                         if (hasConstraints)
1532                                                 Output.Write (", ");
1533                                         Output.Write ("new");
1534                                         if (hasConstraints)
1535                                                 Output.Write (" ");
1536                                         Output.Write ("()");
1537                                 }
1538                         }
1539
1540                         if (indented)
1541                                 --Indent;
1542                 }
1543
1544                 string GetTypeArguments (CodeTypeReferenceCollection collection)
1545                 {
1546                         StringBuilder sb = new StringBuilder (" <");
1547                         foreach (CodeTypeReference r in collection) {
1548                                 sb.Append (GetTypeOutput (r));
1549                                 sb.Append (", ");
1550                         }
1551                         sb.Length--;
1552                         sb [sb.Length - 1] = '>';
1553                         return sb.ToString ();
1554                 }
1555
1556                 private void OutputTypeArguments (CodeTypeReferenceCollection typeArguments, StringBuilder sb, int count)
1557                 {
1558                         if (count == 0) {
1559                                 return;
1560                         } else if (typeArguments.Count == 0) {
1561                                 // generic type definition
1562                                 sb.Append ("<>");
1563                                 return;
1564                         }
1565
1566                         sb.Append ('<');
1567
1568                         // write first type argument
1569                         sb.Append (GetTypeOutput (typeArguments[0]));
1570                         // subsequent type argument are prefixed by ', ' separator
1571                         for (int i = 1; i < count; i++) {
1572                                 sb.Append (", ");
1573                                 sb.Append (GetTypeOutput (typeArguments[i]));
1574                         }
1575
1576                         sb.Append ('>');
1577                 }
1578
1579 #if false
1580                 //[MonoTODO]
1581                 public override void ValidateIdentifier (string identifier)
1582                 {
1583                 }
1584 #endif
1585
1586                 private string GetSafeName (string id)
1587                 {
1588                         if (keywordsTable == null) {
1589                                 FillKeywordTable ();
1590                         }
1591                         if (keywordsTable.Contains (id)) {
1592                                 return "@" + id;
1593                         } else {
1594                                 return id;
1595                         }
1596                 }
1597
1598                 static void FillKeywordTable ()
1599                 {
1600                         keywordsTable = new Hashtable ();
1601                         foreach (string keyword in keywords) {
1602                                 keywordsTable.Add (keyword, keyword);
1603                         }
1604                 }
1605
1606                 private static Hashtable keywordsTable;
1607                 private static string[] keywords = new string[] {
1608                         "abstract","event","new","struct","as","explicit","null","switch","base","extern",
1609                         "this","false","operator","throw","break","finally","out","true",
1610                         "fixed","override","try","case","params","typeof","catch","for",
1611                         "private","foreach","protected","checked","goto","public",
1612                         "unchecked","class","if","readonly","unsafe","const","implicit","ref",
1613                         "continue","in","return","using","virtual","default",
1614                         "interface","sealed","volatile","delegate","internal","do","is",
1615                         "sizeof","while","lock","stackalloc","else","static","enum",
1616                         "namespace",
1617                         "object","bool","byte","float","uint","char","ulong","ushort",
1618                         "decimal","int","sbyte","short","double","long","string","void",
1619                         "partial", "yield", "where"
1620                 };
1621         }
1622 }