mcs/mcs/settings.cs

   1 //
   2 // settings.cs: All compiler settings
   3 //
   4 // Author: Miguel de Icaza (miguel@ximian.com)
   5 //            Ravi Pratap  (ravi@ximian.com)
   6 //            Marek Safar  (marek.safar@gmail.com)
   7 //
   8 //
   9 // Dual licensed under the terms of the MIT X11 or GNU GPL
  10 //
  11 // Copyright 2001 Ximian, Inc (http://www.ximian.com)
  12 // Copyright 2004-2008 Novell, Inc
  13 // Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
  14 //
  15
  16 using System.Collections.Generic;
  17 using System.IO;
  18 using System.Text;
  19 using System.Globalization;
  20 using System;
  21
  22 namespace Mono.CSharp {
  23
  24         public enum LanguageVersion
  25         {
  26                 ISO_1 = 1,
  27                 ISO_2 = 2,
  28                 V_3 = 3,
  29                 V_4 = 4,
  30                 V_5 = 5,
  31                 Future = 100,
  32
  33                 Default = LanguageVersion.V_5,
  34         }
  35
  36         public enum RuntimeVersion
  37         {
  38                 v1,
  39                 v2,
  40                 v4
  41         }
  42
  43         public enum Target
  44         {
  45                 Library, Exe, Module, WinExe
  46         }
  47
  48         public enum Platform
  49         {
  50                 AnyCPU,
  51                 AnyCPU32Preferred,
  52                 Arm,
  53                 X86,
  54                 X64,
  55                 IA64
  56         }
  57
  58         public class CompilerSettings
  59         {
  60                 public Target Target;
  61                 public Platform Platform;
  62                 public string TargetExt;
  63                 public bool VerifyClsCompliance;
  64                 public bool Optimize;
  65                 public LanguageVersion Version;
  66                 public bool EnhancedWarnings;
  67                 public bool LoadDefaultReferences;
  68                 public string SdkVersion;
  69
  70                 public string StrongNameKeyFile;
  71                 public string StrongNameKeyContainer;
  72                 public bool StrongNameDelaySign;
  73
  74                 public int TabSize;
  75
  76                 public bool WarningsAreErrors;
  77                 public int WarningLevel;
  78
  79                 //
  80                 // Assemblies references to be loaded
  81                 //
  82                 public List<string> AssemblyReferences;
  83
  84                 //
  85                 // External aliases for assemblies
  86                 //
  87                 public List<Tuple<string, string>> AssemblyReferencesAliases;
  88
  89                 //
  90                 // Modules to be embedded
  91                 //
  92                 public List<string> Modules;
  93
  94                 //
  95                 // Lookup paths for referenced assemblies
  96                 //
  97                 public List<string> ReferencesLookupPaths;
  98
  99                 //
 100                 // Encoding.
 101                 //
 102                 public Encoding Encoding;
 103
 104                 //
 105                 // If set, enable XML documentation generation
 106                 //
 107                 public string DocumentationFile;
 108
 109                 public string MainClass;
 110
 111                 //
 112                 // Output file
 113                 //
 114                 public string OutputFile;
 115
 116                 //
 117                 // The default compiler checked state
 118                 //
 119                 public bool Checked;
 120
 121                 //
 122                 // If true, the compiler is operating in statement mode,
 123                 // this currently turns local variable declaration into
 124                 // static variables of a class
 125                 //
 126                 public bool StatementMode;      // TODO: SUPER UGLY
 127
 128                 //
 129                 // Whether to allow Unsafe code
 130                 //
 131                 public bool Unsafe;
 132
 133                 public string Win32ResourceFile;
 134                 public string Win32IconFile;
 135
 136                 //
 137                 // A list of resource files for embedding
 138                 //
 139                 public List<AssemblyResource> Resources;
 140
 141                 public bool GenerateDebugInfo;
 142
 143                 #region Compiler debug flags only
 144                 public bool ParseOnly, TokenizeOnly, Timestamps;
 145                 public int DebugFlags;
 146                 public int VerboseParserFlag;
 147                 public int FatalCounter;
 148                 public bool Stacktrace;
 149                 #endregion
 150
 151                 public bool ShowFullPaths;
 152
 153                 //
 154                 // Whether we are being linked against the standard libraries.
 155                 // This is only used to tell whether `System.Object' should
 156                 // have a base class or not.
 157                 //
 158                 public bool StdLib;
 159
 160                 public RuntimeVersion StdLibRuntimeVersion;
 161
 162                 public bool WriteMetadataOnly;
 163
 164                 readonly List<string> conditional_symbols;
 165
 166                 readonly List<SourceFile> source_files;
 167
 168                 List<int> warnings_as_error;
 169                 List<int> warnings_only;
 170                 HashSet<int> warning_ignore_table;
 171
 172                 public CompilerSettings ()
 173                 {
 174                         StdLib = true;
 175                         Target = Target.Exe;
 176                         TargetExt = ".exe";
 177                         Platform = Platform.AnyCPU;
 178                         Version = LanguageVersion.Default;
 179                         VerifyClsCompliance = true;
 180                         Encoding = Encoding.UTF8;
 181                         LoadDefaultReferences = true;
 182                         StdLibRuntimeVersion = RuntimeVersion.v4;
 183                         WarningLevel = 4;
 184
 185                         // Default to 1 or mdb files would be platform speficic
 186                         TabSize = 1;
 187
 188                         AssemblyReferences = new List<string> ();
 189                         AssemblyReferencesAliases = new List<Tuple<string, string>> ();
 190                         Modules = new List<string> ();
 191                         ReferencesLookupPaths = new List<string> ();
 192
 193                         conditional_symbols = new List<string> ();
 194                         //
 195                         // Add default mcs define
 196                         //
 197                         conditional_symbols.Add ("__MonoCS__");
 198
 199                         source_files = new List<SourceFile> ();
 200                 }
 201
 202                 #region Properties
 203
 204                 public SourceFile FirstSourceFile {
 205                         get {
 206                                 return source_files.Count > 0 ? source_files [0] : null;
 207                         }
 208                 }
 209
 210                 public bool HasKeyFileOrContainer {
 211                         get {
 212                                 return StrongNameKeyFile != null || StrongNameKeyContainer != null;
 213                         }
 214                 }
 215
 216                 public bool NeedsEntryPoint {
 217                         get {
 218                                 return Target == Target.Exe || Target == Target.WinExe;
 219                         }
 220                 }
 221
 222                 public List<SourceFile> SourceFiles {
 223                         get {
 224                                 return source_files;
 225                         }
 226                 }
 227
 228                 #endregion
 229
 230                 public void AddConditionalSymbol (string symbol)
 231                 {
 232                         if (!conditional_symbols.Contains (symbol))
 233                                 conditional_symbols.Add (symbol);
 234                 }
 235
 236                 public void AddWarningAsError (int id)
 237                 {
 238                         if (warnings_as_error == null)
 239                                 warnings_as_error = new List<int> ();
 240
 241                         warnings_as_error.Add (id);
 242                 }
 243
 244                 public void AddWarningOnly (int id)
 245                 {
 246                         if (warnings_only == null)
 247                                 warnings_only = new List<int> ();
 248
 249                         warnings_only.Add (id);
 250                 }
 251
 252                 public bool IsConditionalSymbolDefined (string symbol)
 253                 {
 254                         return conditional_symbols.Contains (symbol);
 255                 }
 256
 257                 public bool IsWarningAsError (int code)
 258                 {
 259                         bool is_error = WarningsAreErrors;
 260
 261                         // Check specific list
 262                         if (warnings_as_error != null)
 263                                 is_error |= warnings_as_error.Contains (code);
 264
 265                         // Ignore excluded warnings
 266                         if (warnings_only != null && warnings_only.Contains (code))
 267                                 is_error = false;
 268
 269                         return is_error;
 270                 }
 271
 272                 public bool IsWarningEnabled (int code, int level)
 273                 {
 274                         if (WarningLevel < level)
 275                                 return false;
 276
 277                         return !IsWarningDisabledGlobally (code);
 278                 }
 279
 280                 public bool IsWarningDisabledGlobally (int code)
 281                 {
 282                         return warning_ignore_table != null && warning_ignore_table.Contains (code);
 283                 }
 284
 285                 public void SetIgnoreWarning (int code)
 286                 {
 287                         if (warning_ignore_table == null)
 288                                 warning_ignore_table = new HashSet<int> ();
 289
 290                         warning_ignore_table.Add (code);
 291                 }
 292         }
 293
 294         public class CommandLineParser
 295         {
 296                 enum ParseResult
 297                 {
 298                         Success,
 299                         Error,
 300                         Stop,
 301                         UnknownOption
 302                 }
 303
 304                 static readonly char[] argument_value_separator = { ';', ',' };
 305                 static readonly char[] numeric_value_separator = { ';', ',', ' ' };
 306
 307                 readonly TextWriter output;
 308                 readonly Report report;
 309                 bool stop_argument;
 310
 311                 Dictionary<string, int> source_file_index;
 312
 313                 public event Func<string[], int, int> UnknownOptionHandler;
 314
 315                 CompilerSettings parser_settings;
 316
 317                 public CommandLineParser (TextWriter errorOutput)
 318                         : this (errorOutput, Console.Out)
 319                 {
 320                 }
 321
 322                 public CommandLineParser (TextWriter errorOutput, TextWriter messagesOutput)
 323                 {
 324                         var rp = new StreamReportPrinter (errorOutput);
 325
 326                         parser_settings = new CompilerSettings ();
 327                         report = new Report (new CompilerContext (parser_settings, rp), rp);
 328                         this.output = messagesOutput;
 329                 }
 330
 331                 public bool HasBeenStopped {
 332                         get {
 333                                 return stop_argument;
 334                         }
 335                 }
 336
 337                 void About ()
 338                 {
 339                         output.WriteLine (
 340                                 "The Mono C# compiler is Copyright 2001-2011, Novell, Inc.\n\n" +
 341                                 "The compiler source code is released under the terms of the \n" +
 342                                 "MIT X11 or GNU GPL licenses\n\n" +
 343
 344                                 "For more information on Mono, visit the project Web site\n" +
 345                                 "   http://www.mono-project.com\n\n" +
 346
 347                                 "The compiler was written by Miguel de Icaza, Ravi Pratap, Martin Baulig, Marek Safar, Raja R Harinath, Atushi Enomoto");
 348                 }
 349
 350                 public CompilerSettings ParseArguments (string[] args)
 351                 {
 352                         CompilerSettings settings = new CompilerSettings ();
 353                         if (!ParseArguments (settings, args))
 354                                 return null;
 355
 356                         return settings;
 357                 }
 358
 359                 public bool ParseArguments (CompilerSettings settings, string[] args)
 360                 {
 361                         if (settings == null)
 362                                 throw new ArgumentNullException ("settings");
 363
 364                         List<string> response_file_list = null;
 365                         bool parsing_options = true;
 366                         stop_argument = false;
 367                         source_file_index = new Dictionary<string, int> ();
 368
 369                         for (int i = 0; i < args.Length; i++) {
 370                                 string arg = args[i];
 371                                 if (arg.Length == 0)
 372                                         continue;
 373
 374                                 if (arg[0] == '@') {
 375                                         string[] extra_args;
 376                                         string response_file = arg.Substring (1);
 377
 378                                         if (response_file_list == null)
 379                                                 response_file_list = new List<string> ();
 380
 381                                         if (response_file_list.Contains (response_file)) {
 382                                                 report.Error (1515, "Response file `{0}' specified multiple times", response_file);
 383                                                 return false;
 384                                         }
 385
 386                                         response_file_list.Add (response_file);
 387
 388                                         extra_args = LoadArgs (response_file);
 389                                         if (extra_args == null) {
 390                                                 report.Error (2011, "Unable to open response file: " + response_file);
 391                                                 return false;
 392                                         }
 393
 394                                         args = AddArgs (args, extra_args);
 395                                         continue;
 396                                 }
 397
 398                                 if (parsing_options) {
 399                                         if (arg == "--") {
 400                                                 parsing_options = false;
 401                                                 continue;
 402                                         }
 403
 404                                         bool dash_opt = arg[0] == '-';
 405                                         bool slash_opt = arg[0] == '/';
 406                                         if (dash_opt) {
 407                                                 switch (ParseOptionUnix (arg, ref args, ref i, settings)) {
 408                                                 case ParseResult.Error:
 409                                                 case ParseResult.Success:
 410                                                         continue;
 411                                                 case ParseResult.Stop:
 412                                                         stop_argument = true;
 413                                                         return true;
 414                                                 case ParseResult.UnknownOption:
 415                                                         if (UnknownOptionHandler != null) {
 416                                                                 var ret = UnknownOptionHandler (args, i);
 417                                                                 if (ret != -1) {
 418                                                                         i = ret;
 419                                                                         continue;
 420                                                                 }
 421                                                         }
 422                                                         break;
 423                                                 }
 424                                         }
 425
 426                                         if (dash_opt || slash_opt) {
 427                                                 // Try a -CSCOPTION
 428                                                 string csc_opt = dash_opt ? "/" + arg.Substring (1) : arg;
 429                                                 switch (ParseOption (csc_opt, ref args, settings)) {
 430                                                 case ParseResult.Error:
 431                                                 case ParseResult.Success:
 432                                                         continue;
 433                                                 case ParseResult.UnknownOption:
 434                                                         // Need to skip `/home/test.cs' however /test.cs is considered as error
 435                                                         if ((slash_opt && arg.Length > 3 && arg.IndexOf ('/', 2) > 0))
 436                                                                 break;
 437
 438                                                         if (UnknownOptionHandler != null) {
 439                                                                 var ret = UnknownOptionHandler (args, i);
 440                                                                 if (ret != -1) {
 441                                                                         i = ret;
 442                                                                         continue;
 443                                                                 }
 444                                                         }
 445
 446                                                         Error_WrongOption (arg);
 447                                                         return false;
 448
 449                                                 case ParseResult.Stop:
 450                                                         stop_argument = true;
 451                                                         return true;
 452                                                 }
 453                                         }
 454                                 }
 455
 456                                 ProcessSourceFiles (arg, false, settings.SourceFiles);
 457                         }
 458
 459                         return report.Errors == 0;
 460                 }
 461
 462                 void ProcessSourceFiles (string spec, bool recurse, List<SourceFile> sourceFiles)
 463                 {
 464                         string path, pattern;
 465
 466                         SplitPathAndPattern (spec, out path, out pattern);
 467                         if (pattern.IndexOf ('*') == -1) {
 468                                 AddSourceFile (spec, sourceFiles);
 469                                 return;
 470                         }
 471
 472                         string[] files;
 473                         try {
 474                                 files = Directory.GetFiles (path, pattern);
 475                         } catch (System.IO.DirectoryNotFoundException) {
 476                                 report.Error (2001, "Source file `" + spec + "' could not be found");
 477                                 return;
 478                         } catch (System.IO.IOException) {
 479                                 report.Error (2001, "Source file `" + spec + "' could not be found");
 480                                 return;
 481                         }
 482                         foreach (string f in files) {
 483                                 AddSourceFile (f, sourceFiles);
 484                         }
 485
 486                         if (!recurse)
 487                                 return;
 488
 489                         string[] dirs = null;
 490
 491                         try {
 492                                 dirs = Directory.GetDirectories (path);
 493                         } catch {
 494                         }
 495
 496                         foreach (string d in dirs) {
 497
 498                                 // Don't include path in this string, as each
 499                                 // directory entry already does
 500                                 ProcessSourceFiles (d + "/" + pattern, true, sourceFiles);
 501                         }
 502                 }
 503
 504                 static string[] AddArgs (string[] args, string[] extra_args)
 505                 {
 506                         string[] new_args;
 507                         new_args = new string[extra_args.Length + args.Length];
 508
 509                         // if args contains '--' we have to take that into account
 510                         // split args into first half and second half based on '--'
 511                         // and add the extra_args before --
 512                         int split_position = Array.IndexOf (args, "--");
 513                         if (split_position != -1) {
 514                                 Array.Copy (args, new_args, split_position);
 515                                 extra_args.CopyTo (new_args, split_position);
 516                                 Array.Copy (args, split_position, new_args, split_position + extra_args.Length, args.Length - split_position);
 517                         } else {
 518                                 args.CopyTo (new_args, 0);
 519                                 extra_args.CopyTo (new_args, args.Length);
 520                         }
 521
 522                         return new_args;
 523                 }
 524
 525                 void AddAssemblyReference (string alias, string assembly, CompilerSettings settings)
 526                 {
 527                         if (assembly.Length == 0) {
 528                                 report.Error (1680, "Invalid reference alias `{0}='. Missing filename", alias);
 529                                 return;
 530                         }
 531
 532                         if (!IsExternAliasValid (alias)) {
 533                                 report.Error (1679, "Invalid extern alias for -reference. Alias `{0}' is not a valid identifier", alias);
 534                                 return;
 535                         }
 536
 537                         settings.AssemblyReferencesAliases.Add (Tuple.Create (alias, assembly));
 538                 }
 539
 540                 void AddResource (AssemblyResource res, CompilerSettings settings)
 541                 {
 542                         if (settings.Resources == null) {
 543                                 settings.Resources = new List<AssemblyResource> ();
 544                                 settings.Resources.Add (res);
 545                                 return;
 546                         }
 547
 548                         if (settings.Resources.Contains (res)) {
 549                                 report.Error (1508, "The resource identifier `{0}' has already been used in this assembly", res.Name);
 550                                 return;
 551                         }
 552
 553                         settings.Resources.Add (res);
 554                 }
 555
 556                 void AddSourceFile (string fileName, List<SourceFile> sourceFiles)
 557                 {
 558                         string path = Path.GetFullPath (fileName);
 559
 560                         int index;
 561                         if (source_file_index.TryGetValue (path, out index)) {
 562                                 string other_name = sourceFiles[index - 1].Name;
 563                                 if (fileName.Equals (other_name))
 564                                         report.Warning (2002, 1, "Source file `{0}' specified multiple times", other_name);
 565                                 else
 566                                         report.Warning (2002, 1, "Source filenames `{0}' and `{1}' both refer to the same file: {2}", fileName, other_name, path);
 567
 568                                 return;
 569                         }
 570
 571                         var unit = new SourceFile (fileName, path, sourceFiles.Count + 1);
 572                         sourceFiles.Add (unit);
 573                         source_file_index.Add (path, unit.Index);
 574                 }
 575
 576                 public bool ProcessWarningsList (string text, Action<int> action)
 577                 {
 578                         bool valid = true;
 579                         foreach (string wid in text.Split (numeric_value_separator, StringSplitOptions.RemoveEmptyEntries)) {
 580                                 int id;
 581                                 if (!int.TryParse (wid, NumberStyles.AllowLeadingWhite, CultureInfo.InvariantCulture, out id)) {
 582                                         report.Error (1904, "`{0}' is not a valid warning number", wid);
 583                                         valid = false;
 584                                         continue;
 585                                 }
 586
 587                                 if (report.CheckWarningCode (id, Location.Null))
 588                                         action (id);
 589                         }
 590
 591                         return valid;
 592                 }
 593
 594                 void Error_RequiresArgument (string option)
 595                 {
 596                         report.Error (2006, "Missing argument for `{0}' option", option);
 597                 }
 598
 599                 void Error_RequiresFileName (string option)
 600                 {
 601                         report.Error (2005, "Missing file specification for `{0}' option", option);
 602                 }
 603
 604                 void Error_WrongOption (string option)
 605                 {
 606                         report.Error (2007, "Unrecognized command-line option: `{0}'", option);
 607                 }
 608
 609                 static bool IsExternAliasValid (string identifier)
 610                 {
 611                         return Tokenizer.IsValidIdentifier (identifier);
 612                 }
 613
 614                 static string[] LoadArgs (string file)
 615                 {
 616                         StreamReader f;
 617                         var args = new List<string> ();
 618                         string line;
 619                         try {
 620                                 f = new StreamReader (file);
 621                         } catch {
 622                                 return null;
 623                         }
 624
 625                         StringBuilder sb = new StringBuilder ();
 626
 627                         while ((line = f.ReadLine ()) != null) {
 628                                 int t = line.Length;
 629
 630                                 for (int i = 0; i < t; i++) {
 631                                         char c = line[i];
 632
 633                                         if (c == '"' || c == '\'') {
 634                                                 char end = c;
 635
 636                                                 for (i++; i < t; i++) {
 637                                                         c = line[i];
 638
 639                                                         if (c == end)
 640                                                                 break;
 641                                                         sb.Append (c);
 642                                                 }
 643                                         } else if (c == ' ') {
 644                                                 if (sb.Length > 0) {
 645                                                         args.Add (sb.ToString ());
 646                                                         sb.Length = 0;
 647                                                 }
 648                                         } else
 649                                                 sb.Append (c);
 650                                 }
 651                                 if (sb.Length > 0) {
 652                                         args.Add (sb.ToString ());
 653                                         sb.Length = 0;
 654                                 }
 655                         }
 656
 657                         return args.ToArray ();
 658                 }
 659
 660                 void OtherFlags ()
 661                 {
 662                         output.WriteLine (
 663                                 "Other flags in the compiler\n" +
 664                                 "   --fatal[=COUNT]    Makes error after COUNT fatal\n" +
 665                                 "   --lint             Enhanced warnings\n" +
 666                                 "   --metadata-only    Produced assembly will contain metadata only\n" +
 667                                 "   --parse            Only parses the source file\n" +
 668                                 "   --runtime:VERSION  Sets mscorlib.dll metadata version: v1, v2, v4\n" +
 669                                 "   --stacktrace       Shows stack trace at error location\n" +
 670                                 "   --timestamp        Displays time stamps of various compiler events\n" +
 671                                 "   -v                 Verbose parsing (for debugging the parser)\n" +
 672                                 "   --mcs-debug X      Sets MCS debugging level to X\n");
 673                 }
 674
 675                 //
 676                 // This parses the -arg and /arg options to the compiler, even if the strings
 677                 // in the following text use "/arg" on the strings.
 678                 //
 679                 ParseResult ParseOption (string option, ref string[] args, CompilerSettings settings)
 680                 {
 681                         int idx = option.IndexOf (':');
 682                         string arg, value;
 683
 684                         if (idx == -1) {
 685                                 arg = option;
 686                                 value = "";
 687                         } else {
 688                                 arg = option.Substring (0, idx);
 689
 690                                 value = option.Substring (idx + 1);
 691                         }
 692
 693                         switch (arg.ToLowerInvariant ()) {
 694                         case "/nologo":
 695                                 return ParseResult.Success;
 696
 697                         case "/t":
 698                         case "/target":
 699                                 switch (value) {
 700                                 case "exe":
 701                                         settings.Target = Target.Exe;
 702                                         break;
 703
 704                                 case "winexe":
 705                                         settings.Target = Target.WinExe;
 706                                         break;
 707
 708                                 case "library":
 709                                         settings.Target = Target.Library;
 710                                         settings.TargetExt = ".dll";
 711                                         break;
 712
 713                                 case "module":
 714                                         settings.Target = Target.Module;
 715                                         settings.TargetExt = ".netmodule";
 716                                         break;
 717
 718                                 default:
 719                                         report.Error (2019, "Invalid target type for -target. Valid options are `exe', `winexe', `library' or `module'");
 720                                         return ParseResult.Error;
 721                                 }
 722                                 return ParseResult.Success;
 723
 724                         case "/out":
 725                                 if (value.Length == 0) {
 726                                         Error_RequiresFileName (option);
 727                                         return ParseResult.Error;
 728                                 }
 729                                 settings.OutputFile = value;
 730                                 return ParseResult.Success;
 731
 732                         case "/o":
 733                         case "/o+":
 734                         case "/optimize":
 735                         case "/optimize+":
 736                                 settings.Optimize = true;
 737                                 return ParseResult.Success;
 738
 739                         case "/o-":
 740                         case "/optimize-":
 741                                 settings.Optimize = false;
 742                                 return ParseResult.Success;
 743
 744                         // TODO: Not supported by csc 3.5+
 745                         case "/incremental":
 746                         case "/incremental+":
 747                         case "/incremental-":
 748                                 // nothing.
 749                                 return ParseResult.Success;
 750
 751                         case "/d":
 752                         case "/define": {
 753                                         if (value.Length == 0) {
 754                                                 Error_RequiresArgument (option);
 755                                                 return ParseResult.Error;
 756                                         }
 757
 758                                         foreach (string d in value.Split (argument_value_separator)) {
 759                                                 string conditional = d.Trim ();
 760                                                 if (!Tokenizer.IsValidIdentifier (conditional)) {
 761                                                         report.Warning (2029, 1, "Invalid conditional define symbol `{0}'", conditional);
 762                                                         continue;
 763                                                 }
 764
 765                                                 settings.AddConditionalSymbol (conditional);
 766                                         }
 767                                         return ParseResult.Success;
 768                                 }
 769
 770                         case "/bugreport":
 771                                 //
 772                                 // We should collect data, runtime, etc and store in the file specified
 773                                 //
 774                                 output.WriteLine ("To file bug reports, please visit: http://www.mono-project.com/Bugs");
 775                                 return ParseResult.Success;
 776
 777                         case "/pkg": {
 778                                         string packages;
 779
 780                                         if (value.Length == 0) {
 781                                                 Error_RequiresArgument (option);
 782                                                 return ParseResult.Error;
 783                                         }
 784                                         packages = String.Join (" ", value.Split (new Char[] { ';', ',', '\n', '\r' }));
 785                                         string pkgout = Driver.GetPackageFlags (packages, report);
 786
 787                                         if (pkgout == null)
 788                                                 return ParseResult.Error;
 789
 790                                         string[] xargs = pkgout.Trim (new Char[] { ' ', '\n', '\r', '\t' }).Split (new Char[] { ' ', '\t' });
 791                                         args = AddArgs (args, xargs);
 792                                         return ParseResult.Success;
 793                                 }
 794
 795                         case "/linkres":
 796                         case "/linkresource":
 797                         case "/res":
 798                         case "/resource":
 799                                 AssemblyResource res = null;
 800                                 string[] s = value.Split (argument_value_separator, StringSplitOptions.RemoveEmptyEntries);
 801                                 switch (s.Length) {
 802                                 case 1:
 803                                         if (s[0].Length == 0)
 804                                                 goto default;
 805                                         res = new AssemblyResource (s[0], Path.GetFileName (s[0]));
 806                                         break;
 807                                 case 2:
 808                                         res = new AssemblyResource (s[0], s[1]);
 809                                         break;
 810                                 case 3:
 811                                         if (s[2] != "public" && s[2] != "private") {
 812                                                 report.Error (1906, "Invalid resource visibility option `{0}'. Use either `public' or `private' instead", s[2]);
 813                                                 return ParseResult.Error;
 814                                         }
 815                                         res = new AssemblyResource (s[0], s[1], s[2] == "private");
 816                                         break;
 817                                 default:
 818                                         report.Error (-2005, "Wrong number of arguments for option `{0}'", option);
 819                                         return ParseResult.Error;
 820                                 }
 821
 822                                 if (res != null) {
 823                                         res.IsEmbeded = arg[1] == 'r' || arg[1] == 'R';
 824                                         AddResource (res, settings);
 825                                 }
 826
 827                                 return ParseResult.Success;
 828
 829                         case "/recurse":
 830                                 if (value.Length == 0) {
 831                                         Error_RequiresFileName (option);
 832                                         return ParseResult.Error;
 833                                 }
 834                                 ProcessSourceFiles (value, true, settings.SourceFiles);
 835                                 return ParseResult.Success;
 836
 837                         case "/r":
 838                         case "/reference": {
 839                                         if (value.Length == 0) {
 840                                                 Error_RequiresFileName (option);
 841                                                 return ParseResult.Error;
 842                                         }
 843
 844                                         string[] refs = value.Split (argument_value_separator);
 845                                         foreach (string r in refs) {
 846                                                 if (r.Length == 0)
 847                                                         continue;
 848
 849                                                 string val = r;
 850                                                 int index = val.IndexOf ('=');
 851                                                 if (index > -1) {
 852                                                         string alias = r.Substring (0, index);
 853                                                         string assembly = r.Substring (index + 1);
 854                                                         AddAssemblyReference (alias, assembly, settings);
 855                                                         if (refs.Length != 1) {
 856                                                                 report.Error (2034, "Cannot specify multiple aliases using single /reference option");
 857                                                                 return ParseResult.Error;
 858                                                         }
 859                                                 } else {
 860                                                         settings.AssemblyReferences.Add (val);
 861                                                 }
 862                                         }
 863                                         return ParseResult.Success;
 864                                 }
 865                         case "/addmodule": {
 866                                         if (value.Length == 0) {
 867                                                 Error_RequiresFileName (option);
 868                                                 return ParseResult.Error;
 869                                         }
 870
 871                                         string[] refs = value.Split (argument_value_separator);
 872                                         foreach (string r in refs) {
 873                                                 settings.Modules.Add (r);
 874                                         }
 875                                         return ParseResult.Success;
 876                                 }
 877                         case "/win32res": {
 878                                         if (value.Length == 0) {
 879                                                 Error_RequiresFileName (option);
 880                                                 return ParseResult.Error;
 881                                         }
 882
 883                                         if (settings.Win32IconFile != null)
 884                                                 report.Error (1565, "Cannot specify the `win32res' and the `win32ico' compiler option at the same time");
 885
 886                                         settings.Win32ResourceFile = value;
 887                                         return ParseResult.Success;
 888                                 }
 889                         case "/win32icon": {
 890                                         if (value.Length == 0) {
 891                                                 Error_RequiresFileName (option);
 892                                                 return ParseResult.Error;
 893                                         }
 894
 895                                         if (settings.Win32ResourceFile != null)
 896                                                 report.Error (1565, "Cannot specify the `win32res' and the `win32ico' compiler option at the same time");
 897
 898                                         settings.Win32IconFile = value;
 899                                         return ParseResult.Success;
 900                                 }
 901                         case "/doc": {
 902                                         if (value.Length == 0) {
 903                                                 Error_RequiresFileName (option);
 904                                                 return ParseResult.Error;
 905                                         }
 906
 907                                         settings.DocumentationFile = value;
 908                                         return ParseResult.Success;
 909                                 }
 910                         case "/lib": {
 911                                         string[] libdirs;
 912
 913                                         if (value.Length == 0) {
 914                                                 return ParseResult.Error;
 915                                         }
 916
 917                                         libdirs = value.Split (argument_value_separator);
 918                                         foreach (string dir in libdirs)
 919                                                 settings.ReferencesLookupPaths.Add (dir);
 920                                         return ParseResult.Success;
 921                                 }
 922
 923                         case "/debug-":
 924                                 settings.GenerateDebugInfo = false;
 925                                 return ParseResult.Success;
 926
 927                         case "/debug":
 928                                 if (value.Equals ("full", StringComparison.OrdinalIgnoreCase) || value.Equals ("pdbonly", StringComparison.OrdinalIgnoreCase) || idx < 0) {
 929                                         settings.GenerateDebugInfo = true;
 930                                         return ParseResult.Success;
 931                                 }
 932
 933                                 if (value.Length > 0) {
 934                                         report.Error (1902, "Invalid debug option `{0}'. Valid options are `full' or `pdbonly'", value);
 935                                 } else {
 936                                         Error_RequiresArgument (option);
 937                                 }
 938
 939                                 return ParseResult.Error;
 940
 941                         case "/debug+":
 942                                 settings.GenerateDebugInfo = true;
 943                                 return ParseResult.Success;
 944
 945                         case "/checked":
 946                         case "/checked+":
 947                                 settings.Checked = true;
 948                                 return ParseResult.Success;
 949
 950                         case "/checked-":
 951                                 settings.Checked = false;
 952                                 return ParseResult.Success;
 953
 954                         case "/clscheck":
 955                         case "/clscheck+":
 956                                 settings.VerifyClsCompliance = true;
 957                                 return ParseResult.Success;
 958
 959                         case "/clscheck-":
 960                                 settings.VerifyClsCompliance = false;
 961                                 return ParseResult.Success;
 962
 963                         case "/unsafe":
 964                         case "/unsafe+":
 965                                 settings.Unsafe = true;
 966                                 return ParseResult.Success;
 967
 968                         case "/unsafe-":
 969                                 settings.Unsafe = false;
 970                                 return ParseResult.Success;
 971
 972                         case "/warnaserror":
 973                         case "/warnaserror+":
 974                                 if (value.Length == 0) {
 975                                         settings.WarningsAreErrors = true;
 976                                         parser_settings.WarningsAreErrors = true;
 977                                 } else {
 978                                         if (!ProcessWarningsList (value, settings.AddWarningAsError))
 979                                                 return ParseResult.Error;
 980                                 }
 981                                 return ParseResult.Success;
 982
 983                         case "/warnaserror-":
 984                                 if (value.Length == 0) {
 985                                         settings.WarningsAreErrors = false;
 986                                 } else {
 987                                         if (!ProcessWarningsList (value, settings.AddWarningOnly))
 988                                                 return ParseResult.Error;
 989                                 }
 990                                 return ParseResult.Success;
 991
 992                         case "/warn":
 993                         case "/w":
 994                                 if (value.Length == 0) {
 995                                         Error_RequiresArgument (option);
 996                                         return ParseResult.Error;
 997                                 }
 998
 999                                 SetWarningLevel (value, settings);
1000                                 return ParseResult.Success;
1001
1002                         case "/nowarn":
1003                                 if (value.Length == 0) {
1004                                         Error_RequiresArgument (option);
1005                                         return ParseResult.Error;
1006                                 }
1007
1008                                 if (!ProcessWarningsList (value, settings.SetIgnoreWarning))
1009                                         return ParseResult.Error;
1010
1011                                 return ParseResult.Success;
1012
1013                         case "/noconfig":
1014                                 settings.LoadDefaultReferences = false;
1015                                 return ParseResult.Success;
1016
1017                         case "/platform":
1018                                 if (value.Length == 0) {
1019                                         Error_RequiresArgument (option);
1020                                         return ParseResult.Error;
1021                                 }
1022
1023                                 switch (value.ToLowerInvariant ()) {
1024                                 case "arm":
1025                                         settings.Platform = Platform.Arm;
1026                                         break;
1027                                 case "anycpu":
1028                                         settings.Platform = Platform.AnyCPU;
1029                                         break;
1030                                 case "x86":
1031                                         settings.Platform = Platform.X86;
1032                                         break;
1033                                 case "x64":
1034                                         settings.Platform = Platform.X64;
1035                                         break;
1036                                 case "itanium":
1037                                         settings.Platform = Platform.IA64;
1038                                         break;
1039                                 case "anycpu32bitpreferred":
1040                                         settings.Platform = Platform.AnyCPU32Preferred;
1041                                         break;
1042                                 default:
1043                                         report.Error (1672, "Invalid -platform option `{0}'. Valid options are `anycpu', `anycpu32bitpreferred', `arm', `x86', `x64' or `itanium'",
1044                                                 value);
1045                                         return ParseResult.Error;
1046                                 }
1047
1048                                 return ParseResult.Success;
1049
1050                         case "/sdk":
1051                                 if (value.Length == 0) {
1052                                         Error_RequiresArgument (option);
1053                                         return ParseResult.Error;
1054                                 }
1055
1056                                 settings.SdkVersion = value;
1057                                 return ParseResult.Success;
1058
1059                         // We just ignore this.
1060                         case "/errorreport":
1061                         case "/filealign":
1062                                 if (value.Length == 0) {
1063                                         Error_RequiresArgument (option);
1064                                         return ParseResult.Error;
1065                                 }
1066
1067                                 return ParseResult.Success;
1068
1069                         case "/helpinternal":
1070                                 OtherFlags ();
1071                                 return ParseResult.Stop;
1072
1073                         case "/help":
1074                         case "/?":
1075                                 Usage ();
1076                                 return ParseResult.Stop;
1077
1078                         case "/main":
1079                         case "/m":
1080                                 if (value.Length == 0) {
1081                                         Error_RequiresArgument (option);
1082                                         return ParseResult.Error;
1083                                 }
1084                                 settings.MainClass = value;
1085                                 return ParseResult.Success;
1086
1087                         case "/nostdlib":
1088                         case "/nostdlib+":
1089                                 settings.StdLib = false;
1090                                 return ParseResult.Success;
1091
1092                         case "/nostdlib-":
1093                                 settings.StdLib = true;
1094                                 return ParseResult.Success;
1095
1096                         case "/fullpaths":
1097                                 settings.ShowFullPaths = true;
1098                                 return ParseResult.Success;
1099
1100                         case "/keyfile":
1101                                 if (value.Length == 0) {
1102                                         Error_RequiresFileName (option);
1103                                         return ParseResult.Error;
1104                                 }
1105
1106                                 settings.StrongNameKeyFile = value;
1107                                 return ParseResult.Success;
1108
1109                         case "/keycontainer":
1110                                 if (value.Length == 0) {
1111                                         Error_RequiresArgument (option);
1112                                         return ParseResult.Error;
1113                                 }
1114
1115                                 settings.StrongNameKeyContainer = value;
1116                                 return ParseResult.Success;
1117
1118                         case "/delaysign+":
1119                         case "/delaysign":
1120                                 settings.StrongNameDelaySign = true;
1121                                 return ParseResult.Success;
1122
1123                         case "/delaysign-":
1124                                 settings.StrongNameDelaySign = false;
1125                                 return ParseResult.Success;
1126
1127                         case "/langversion":
1128                                 if (value.Length == 0) {
1129                                         Error_RequiresArgument (option);
1130                                         return ParseResult.Error;
1131                                 }
1132
1133                                 switch (value.ToLowerInvariant ()) {
1134                                 case "iso-1":
1135                                         settings.Version = LanguageVersion.ISO_1;
1136                                         return ParseResult.Success;
1137                                 case "default":
1138                                         settings.Version = LanguageVersion.Default;
1139                                         return ParseResult.Success;
1140                                 case "iso-2":
1141                                         settings.Version = LanguageVersion.ISO_2;
1142                                         return ParseResult.Success;
1143                                 case "3":
1144                                         settings.Version = LanguageVersion.V_3;
1145                                         return ParseResult.Success;
1146                                 case "4":
1147                                         settings.Version = LanguageVersion.V_4;
1148                                         return ParseResult.Success;
1149                                 case "5":
1150                                         settings.Version = LanguageVersion.V_5;
1151                                         return ParseResult.Success;
1152                                 case "future":
1153                                         settings.Version = LanguageVersion.Future;
1154                                         return ParseResult.Success;
1155                                 }
1156
1157                                 report.Error (1617, "Invalid -langversion option `{0}'. It must be `ISO-1', `ISO-2', `3', `4', `5', `Default' or `Future'", value);
1158                                 return ParseResult.Error;
1159
1160                         case "/codepage":
1161                                 if (value.Length == 0) {
1162                                         Error_RequiresArgument (option);
1163                                         return ParseResult.Error;
1164                                 }
1165
1166                                 switch (value) {
1167                                 case "utf8":
1168                                         settings.Encoding = Encoding.UTF8;
1169                                         break;
1170                                 case "reset":
1171                                         settings.Encoding = Encoding.Default;
1172                                         break;
1173                                 default:
1174                                         try {
1175                                                 settings.Encoding = Encoding.GetEncoding (int.Parse (value));
1176                                         } catch {
1177                                                 report.Error (2016, "Code page `{0}' is invalid or not installed", value);
1178                                         }
1179                                         return ParseResult.Error;
1180                                 }
1181                                 return ParseResult.Success;
1182
1183                         default:
1184                                 return ParseResult.UnknownOption;
1185                         }
1186                 }
1187
1188                 //
1189                 // Currently handles the Unix-like command line options, but will be
1190                 // deprecated in favor of the CSCParseOption, which will also handle the
1191                 // options that start with a dash in the future.
1192                 //
1193                 ParseResult ParseOptionUnix (string arg, ref string[] args, ref int i, CompilerSettings settings)
1194                 {
1195                         switch (arg){
1196                         case "-v":
1197                                 settings.VerboseParserFlag++;
1198                                 return ParseResult.Success;
1199
1200                         case "--version":
1201                                 Version ();
1202                                 return ParseResult.Stop;
1203
1204                         case "--parse":
1205                                 settings.ParseOnly = true;
1206                                 return ParseResult.Success;
1207
1208                         case "--main": case "-m":
1209                                 report.Warning (-29, 1, "Compatibility: Use -main:CLASS instead of --main CLASS or -m CLASS");
1210                                 if ((i + 1) >= args.Length){
1211                                         Error_RequiresArgument (arg);
1212                                         return ParseResult.Error;
1213                                 }
1214                                 settings.MainClass = args[++i];
1215                                 return ParseResult.Success;
1216
1217                         case "--unsafe":
1218                                 report.Warning (-29, 1, "Compatibility: Use -unsafe instead of --unsafe");
1219                                 settings.Unsafe = true;
1220                                 return ParseResult.Success;
1221
1222                         case "/?": case "/h": case "/help":
1223                         case "--help":
1224                                 Usage ();
1225                                 return ParseResult.Stop;
1226
1227                         case "--define":
1228                                 report.Warning (-29, 1, "Compatibility: Use -d:SYMBOL instead of --define SYMBOL");
1229                                 if ((i + 1) >= args.Length){
1230                                         Error_RequiresArgument (arg);
1231                                         return ParseResult.Error;
1232                                 }
1233
1234                                 settings.AddConditionalSymbol (args [++i]);
1235                                 return ParseResult.Success;
1236
1237                         case "--tokenize":
1238                                 settings.TokenizeOnly = true;
1239                                 return ParseResult.Success;
1240
1241                         case "-o":
1242                         case "--output":
1243                                 report.Warning (-29, 1, "Compatibility: Use -out:FILE instead of --output FILE or -o FILE");
1244                                 if ((i + 1) >= args.Length){
1245                                         Error_RequiresArgument (arg);
1246                                         return ParseResult.Error;
1247                                 }
1248                                 settings.OutputFile = args[++i];
1249                                 return ParseResult.Success;
1250
1251                         case "--checked":
1252                                 report.Warning (-29, 1, "Compatibility: Use -checked instead of --checked");
1253                                 settings.Checked = true;
1254                                 return ParseResult.Success;
1255
1256                         case "--stacktrace":
1257                                 settings.Stacktrace = true;
1258                                 return ParseResult.Success;
1259
1260                         case "--linkresource":
1261                         case "--linkres":
1262                                 report.Warning (-29, 1, "Compatibility: Use -linkres:VALUE instead of --linkres VALUE");
1263                                 if ((i + 1) >= args.Length){
1264                                         Error_RequiresArgument (arg);
1265                                         return ParseResult.Error;
1266                                 }
1267
1268                                 AddResource (new AssemblyResource (args[++i], args[i]), settings);
1269                                 return ParseResult.Success;
1270
1271                         case "--resource":
1272                         case "--res":
1273                                 report.Warning (-29, 1, "Compatibility: Use -res:VALUE instead of --res VALUE");
1274                                 if ((i + 1) >= args.Length){
1275                                         Error_RequiresArgument (arg);
1276                                         return ParseResult.Error;
1277                                 }
1278
1279                                 AddResource (new AssemblyResource (args[++i], args[i], true), settings);
1280                                 return ParseResult.Success;
1281
1282                         case "--target":
1283                                 report.Warning (-29, 1, "Compatibility: Use -target:KIND instead of --target KIND");
1284                                 if ((i + 1) >= args.Length){
1285                                         Error_RequiresArgument (arg);
1286                                         return ParseResult.Error;
1287                                 }
1288
1289                                 string type = args [++i];
1290                                 switch (type){
1291                                 case "library":
1292                                         settings.Target = Target.Library;
1293                                         settings.TargetExt = ".dll";
1294                                         break;
1295
1296                                 case "exe":
1297                                         settings.Target = Target.Exe;
1298                                         break;
1299
1300                                 case "winexe":
1301                                         settings.Target = Target.WinExe;
1302                                         break;
1303
1304                                 case "module":
1305                                         settings.Target = Target.Module;
1306                                         settings.TargetExt = ".dll";
1307                                         break;
1308                                 default:
1309                                         report.Error (2019, "Invalid target type for -target. Valid options are `exe', `winexe', `library' or `module'");
1310                                         break;
1311                                 }
1312                                 return ParseResult.Success;
1313
1314                         case "-r":
1315                                 report.Warning (-29, 1, "Compatibility: Use -r:LIBRARY instead of -r library");
1316                                 if ((i + 1) >= args.Length){
1317                                         Error_RequiresArgument (arg);
1318                                         return ParseResult.Error;
1319                                 }
1320
1321                                 string val = args [++i];
1322                                 int idx = val.IndexOf ('=');
1323                                 if (idx > -1) {
1324                                         string alias = val.Substring (0, idx);
1325                                         string assembly = val.Substring (idx + 1);
1326                                         AddAssemblyReference (alias, assembly, settings);
1327                                         return ParseResult.Success;
1328                                 }
1329
1330                                 settings.AssemblyReferences.Add (val);
1331                                 return ParseResult.Success;
1332
1333                         case "-L":
1334                                 report.Warning (-29, 1, "Compatibility: Use -lib:ARG instead of --L arg");
1335                                 if ((i + 1) >= args.Length){
1336                                         Error_RequiresArgument (arg);
1337                                         return ParseResult.Error;
1338                                 }
1339                                 settings.ReferencesLookupPaths.Add (args [++i]);
1340                                 return ParseResult.Success;
1341
1342                         case "--lint":
1343                                 settings.EnhancedWarnings = true;
1344                                 return ParseResult.Success;
1345
1346                         case "--nostdlib":
1347                                 report.Warning (-29, 1, "Compatibility: Use -nostdlib instead of --nostdlib");
1348                                 settings.StdLib = false;
1349                                 return ParseResult.Success;
1350
1351                         case "--nowarn":
1352                                 report.Warning (-29, 1, "Compatibility: Use -nowarn instead of --nowarn");
1353                                 if ((i + 1) >= args.Length){
1354                                         Error_RequiresArgument (arg);
1355                                         return ParseResult.Error;
1356                                 }
1357                                 int warn = 0;
1358
1359                                 try {
1360                                         warn = int.Parse (args [++i]);
1361                                 } catch {
1362                                         Usage ();
1363                                         Environment.Exit (1);
1364                                 }
1365                                 settings.SetIgnoreWarning (warn);
1366                                 return ParseResult.Success;
1367
1368                         case "--wlevel":
1369                                 report.Warning (-29, 1, "Compatibility: Use -warn:LEVEL instead of --wlevel LEVEL");
1370                                 if ((i + 1) >= args.Length){
1371                                         Error_RequiresArgument (arg);
1372                                         return ParseResult.Error;
1373                                 }
1374
1375                                 SetWarningLevel (args [++i], settings);
1376                                 return ParseResult.Success;
1377
1378                         case "--mcs-debug":
1379                                 if ((i + 1) >= args.Length){
1380                                         Error_RequiresArgument (arg);
1381                                         return ParseResult.Error;
1382                                 }
1383
1384                                 try {
1385                                         settings.DebugFlags = int.Parse (args [++i]);
1386                                 } catch {
1387                                         Error_RequiresArgument (arg);
1388                                         return ParseResult.Error;
1389                                 }
1390
1391                                 return ParseResult.Success;
1392
1393                         case "--about":
1394                                 About ();
1395                                 return ParseResult.Stop;
1396
1397                         case "--recurse":
1398                                 report.Warning (-29, 1, "Compatibility: Use -recurse:PATTERN option instead --recurse PATTERN");
1399                                 if ((i + 1) >= args.Length){
1400                                         Error_RequiresArgument (arg);
1401                                         return ParseResult.Error;
1402                                 }
1403                                 ProcessSourceFiles (args [++i], true, settings.SourceFiles);
1404                                 return ParseResult.Success;
1405
1406                         case "--timestamp":
1407                                 settings.Timestamps = true;
1408                                 return ParseResult.Success;
1409
1410                         case "--debug": case "-g":
1411                                 report.Warning (-29, 1, "Compatibility: Use -debug option instead of -g or --debug");
1412                                 settings.GenerateDebugInfo = true;
1413                                 return ParseResult.Success;
1414
1415                         case "--noconfig":
1416                                 report.Warning (-29, 1, "Compatibility: Use -noconfig option instead of --noconfig");
1417                                 settings.LoadDefaultReferences = false;
1418                                 return ParseResult.Success;
1419
1420                         case "--metadata-only":
1421                                 settings.WriteMetadataOnly = true;
1422                                 return ParseResult.Success;
1423
1424                         default:
1425                                 if (arg.StartsWith ("--fatal", StringComparison.Ordinal)){
1426                                         int fatal = 1;
1427                                         if (arg.StartsWith ("--fatal=", StringComparison.Ordinal))
1428                                                 int.TryParse (arg.Substring (8), out fatal);
1429
1430                                         settings.FatalCounter = fatal;
1431                                         return ParseResult.Success;
1432                                 }
1433                                 if (arg.StartsWith ("--runtime:", StringComparison.Ordinal)) {
1434                                         string version = arg.Substring (10);
1435
1436                                         switch (version) {
1437                                         case "v1":
1438                                         case "V1":
1439                                                 settings.StdLibRuntimeVersion = RuntimeVersion.v1;
1440                                                 break;
1441                                         case "v2":
1442                                         case "V2":
1443                                                 settings.StdLibRuntimeVersion = RuntimeVersion.v2;
1444                                                 break;
1445                                         case "v4":
1446                                         case "V4":
1447                                                 settings.StdLibRuntimeVersion = RuntimeVersion.v4;
1448                                                 break;
1449                                         }
1450                                         return ParseResult.Success;
1451                                 }
1452
1453                                 return ParseResult.UnknownOption;
1454                         }
1455                 }
1456
1457                 void SetWarningLevel (string s, CompilerSettings settings)
1458                 {
1459                         int level = -1;
1460
1461                         try {
1462                                 level = int.Parse (s);
1463                         } catch {
1464                         }
1465                         if (level < 0 || level > 4) {
1466                                 report.Error (1900, "Warning level must be in the range 0-4");
1467                                 return;
1468                         }
1469                         settings.WarningLevel = level;
1470                 }
1471
1472                 //
1473                 // Given a path specification, splits the path from the file/pattern
1474                 //
1475                 static void SplitPathAndPattern (string spec, out string path, out string pattern)
1476                 {
1477                         int p = spec.LastIndexOf ('/');
1478                         if (p != -1) {
1479                                 //
1480                                 // Windows does not like /file.cs, switch that to:
1481                                 // "\", "file.cs"
1482                                 //
1483                                 if (p == 0) {
1484                                         path = "\\";
1485                                         pattern = spec.Substring (1);
1486                                 } else {
1487                                         path = spec.Substring (0, p);
1488                                         pattern = spec.Substring (p + 1);
1489                                 }
1490                                 return;
1491                         }
1492
1493                         p = spec.LastIndexOf ('\\');
1494                         if (p != -1) {
1495                                 path = spec.Substring (0, p);
1496                                 pattern = spec.Substring (p + 1);
1497                                 return;
1498                         }
1499
1500                         path = ".";
1501                         pattern = spec;
1502                 }
1503
1504                 void Usage ()
1505                 {
1506                         output.WriteLine (
1507                                 "Mono C# compiler, Copyright 2001-2011 Novell, Inc., Copyright 2011-2012 Xamarin, Inc\n" +
1508                                 "mcs [options] source-files\n" +
1509                                 "   --about              About the Mono C# compiler\n" +
1510                                 "   -addmodule:M1[,Mn]   Adds the module to the generated assembly\n" +
1511                                 "   -checked[+|-]        Sets default aritmetic overflow context\n" +
1512                                 "   -clscheck[+|-]       Disables CLS Compliance verifications\n" +
1513                                 "   -codepage:ID         Sets code page to the one in ID (number, utf8, reset)\n" +
1514                                 "   -define:S1[;S2]      Defines one or more conditional symbols (short: -d)\n" +
1515                                 "   -debug[+|-], -g      Generate debugging information\n" +
1516                                 "   -delaysign[+|-]      Only insert the public key into the assembly (no signing)\n" +
1517                                 "   -doc:FILE            Process documentation comments to XML file\n" +
1518                                 "   -fullpaths           Any issued error or warning uses absolute file path\n" +
1519                                 "   -help                Lists all compiler options (short: -?)\n" +
1520                                 "   -keycontainer:NAME   The key pair container used to sign the output assembly\n" +
1521                                 "   -keyfile:FILE        The key file used to strongname the ouput assembly\n" +
1522                                 "   -langversion:TEXT    Specifies language version: ISO-1, ISO-2, 3, 4, 5, Default or Future\n" +
1523                                 "   -lib:PATH1[,PATHn]   Specifies the location of referenced assemblies\n" +
1524                                 "   -main:CLASS          Specifies the class with the Main method (short: -m)\n" +
1525                                 "   -noconfig            Disables implicitly referenced assemblies\n" +
1526                                 "   -nostdlib[+|-]       Does not reference mscorlib.dll library\n" +
1527                                 "   -nowarn:W1[,Wn]      Suppress one or more compiler warnings\n" +
1528                                 "   -optimize[+|-]       Enables advanced compiler optimizations (short: -o)\n" +
1529                                 "   -out:FILE            Specifies output assembly name\n" +
1530                                 "   -pkg:P1[,Pn]         References packages P1..Pn\n" +
1531                                 "   -platform:ARCH       Specifies the target platform of the output assembly\n" +
1532                                 "                        ARCH can be one of: anycpu, anycpu32bitpreferred, arm,\n" +
1533                                 "                        x86, x64 or itanium. The default is anycpu.\n" +
1534                                 "   -recurse:SPEC        Recursively compiles files according to SPEC pattern\n" +
1535                                 "   -reference:A1[,An]   Imports metadata from the specified assembly (short: -r)\n" +
1536                                 "   -reference:ALIAS=A   Imports metadata using specified extern alias (short: -r)\n" +
1537                                 "   -sdk:VERSION         Specifies SDK version of referenced assemblies\n" +
1538                                 "                        VERSION can be one of: 2, 4, 4.5 (default) or a custom value\n" +
1539                                 "   -target:KIND         Specifies the format of the output assembly (short: -t)\n" +
1540                                 "                        KIND can be one of: exe, winexe, library, module\n" +
1541                                 "   -unsafe[+|-]         Allows to compile code which uses unsafe keyword\n" +
1542                                 "   -warnaserror[+|-]    Treats all warnings as errors\n" +
1543                                 "   -warnaserror[+|-]:W1[,Wn] Treats one or more compiler warnings as errors\n" +
1544                                 "   -warn:0-4            Sets warning level, the default is 4 (short -w:)\n" +
1545                                 "   -helpinternal        Shows internal and advanced compiler options\n" +
1546                                 "\n" +
1547                                 "Resources:\n" +
1548                                 "   -linkresource:FILE[,ID] Links FILE as a resource (short: -linkres)\n" +
1549                                 "   -resource:FILE[,ID]     Embed FILE as a resource (short: -res)\n" +
1550                                 "   -win32res:FILE          Specifies Win32 resource file (.res)\n" +
1551                                 "   -win32icon:FILE         Use this icon for the output\n" +
1552                                                                 "   @file                   Read response file for more options\n\n" +
1553                                 "Options can be of the form -option or /option");
1554                 }
1555
1556                 void Version ()
1557                 {
1558                         string version = System.Reflection.MethodBase.GetCurrentMethod ().DeclaringType.Assembly.GetName ().Version.ToString ();
1559                         output.WriteLine ("Mono C# compiler version {0}", version);
1560                 }
1561         }
1562
1563         public class RootContext
1564         {
1565                 //
1566                 // Contains the parsed tree
1567                 //
1568                 static ModuleContainer root;
1569
1570                 static public ModuleContainer ToplevelTypes {
1571                         get { return root; }
1572                         set { root = value; }
1573                 }
1574         }
1575 }