mcs/mcs/driver.cs

   1 //
   2 // driver.cs: The compiler command line driver.
   3 //
   4 // Authors:
   5 //   Miguel de Icaza (miguel@gnu.org)
   6 //   Marek Safar (marek.safar@gmail.com)
   7 //
   8 // Dual licensed under the terms of the MIT X11 or GNU GPL
   9 //
  10 // Copyright 2001, 2002, 2003 Ximian, Inc (http://www.ximian.com)
  11 // Copyright 2004, 2005, 2006, 2007, 2008 Novell, Inc
  12 // Copyright 2011 Xamarin Inc
  13 //
  14
  15 using System;
  16 using System.Reflection;
  17 using System.Reflection.Emit;
  18 using System.Collections.Generic;
  19 using System.IO;
  20 using System.Text;
  21 using System.Globalization;
  22 using System.Diagnostics;
  23
  24 namespace Mono.CSharp
  25 {
  26         /// <summary>
  27         ///    The compiler driver.
  28         /// </summary>
  29         class Driver
  30         {
  31                 readonly CompilerContext ctx;
  32
  33                 public Driver (CompilerContext ctx)
  34                 {
  35                         this.ctx = ctx;
  36                 }
  37
  38                 Report Report {
  39                         get {
  40                                 return ctx.Report;
  41                         }
  42                 }
  43
  44                 void tokenize_file (SourceFile sourceFile, ModuleContainer module)
  45                 {
  46                         Stream input;
  47
  48                         try {
  49                                 input = File.OpenRead (sourceFile.Name);
  50                         } catch {
  51                                 Report.Error (2001, "Source file `" + sourceFile.Name + "' could not be found");
  52                                 return;
  53                         }
  54
  55                         using (input){
  56                                 SeekableStreamReader reader = new SeekableStreamReader (input, ctx.Settings.Encoding);
  57                                 var file = new CompilationSourceFile (module, sourceFile);
  58
  59                                 Tokenizer lexer = new Tokenizer (reader, file);
  60                                 int token, tokens = 0, errors = 0;
  61
  62                                 while ((token = lexer.token ()) != Token.EOF){
  63                                         tokens++;
  64                                         if (token == Token.ERROR)
  65                                                 errors++;
  66                                 }
  67                                 Console.WriteLine ("Tokenized: " + tokens + " found " + errors + " errors");
  68                         }
  69
  70                         return;
  71                 }
  72
  73                 void Parse (ModuleContainer module)
  74                 {
  75                         bool tokenize_only = module.Compiler.Settings.TokenizeOnly;
  76                         var sources = module.Compiler.SourceFiles;
  77
  78                         Location.Initialize (sources);
  79
  80                         for (int i = 0; i < sources.Count; ++i) {
  81                                 if (tokenize_only) {
  82                                         tokenize_file (sources[i], module);
  83                                 } else {
  84                                         Parse (sources[i], module);
  85                                 }
  86                         }
  87                 }
  88
  89                 public void Parse (SourceFile file, ModuleContainer module)
  90                 {
  91                         Stream input;
  92
  93                         try {
  94                                 input = File.OpenRead (file.Name);
  95                         } catch {
  96                                 Report.Error (2001, "Source file `{0}' could not be found", file.Name);
  97                                 return;
  98                         }
  99
 100                         // Check 'MZ' header
 101                         if (input.ReadByte () == 77 && input.ReadByte () == 90) {
 102
 103                                 Report.Error (2015, "Source file `{0}' is a binary file and not a text file", file.Name);
 104                                 input.Close ();
 105                                 return;
 106                         }
 107
 108                         input.Position = 0;
 109                         SeekableStreamReader reader = new SeekableStreamReader (input, ctx.Settings.Encoding);
 110
 111                         Parse (reader, file, module);
 112                         reader.Dispose ();
 113                         input.Close ();
 114                 }
 115
 116                 public void Parse (SeekableStreamReader reader, SourceFile sourceFile, ModuleContainer module)
 117                 {
 118                         var file = new CompilationSourceFile (module, sourceFile);
 119                         module.AddTypeContainer (file);
 120
 121                         CSharpParser parser = new CSharpParser (reader, file);
 122                         parser.parse ();
 123                 }
 124
 125                 public static int Main (string[] args)
 126                 {
 127                         Location.InEmacs = Environment.GetEnvironmentVariable ("EMACS") == "t";
 128
 129                         CommandLineParser cmd = new CommandLineParser (Console.Out);
 130                         var settings = cmd.ParseArguments (args);
 131                         if (settings == null)
 132                                 return 1;
 133
 134                         if (cmd.HasBeenStopped)
 135                                 return 0;
 136
 137                         Driver d = new Driver (new CompilerContext (settings, new ConsoleReportPrinter ()));
 138
 139                         if (d.Compile () && d.Report.Errors == 0) {
 140                                 if (d.Report.Warnings > 0) {
 141                                         Console.WriteLine ("Compilation succeeded - {0} warning(s)", d.Report.Warnings);
 142                                 }
 143                                 Environment.Exit (0);
 144                                 return 0;
 145                         }
 146
 147
 148                         Console.WriteLine("Compilation failed: {0} error(s), {1} warnings",
 149                                 d.Report.Errors, d.Report.Warnings);
 150                         Environment.Exit (1);
 151                         return 1;
 152                 }
 153
 154                 public static string GetPackageFlags (string packages, Report report)
 155                 {
 156                         ProcessStartInfo pi = new ProcessStartInfo ();
 157                         pi.FileName = "pkg-config";
 158                         pi.RedirectStandardOutput = true;
 159                         pi.UseShellExecute = false;
 160                         pi.Arguments = "--libs " + packages;
 161                         Process p = null;
 162                         try {
 163                                 p = Process.Start (pi);
 164                         } catch (Exception e) {
 165                                 if (report == null)
 166                                         throw;
 167
 168                                 report.Error (-27, "Couldn't run pkg-config: " + e.Message);
 169                                 return null;
 170                         }
 171
 172                         if (p.StandardOutput == null) {
 173                                 if (report == null)
 174                                         throw new ApplicationException ("Specified package did not return any information");
 175
 176                                 report.Warning (-27, 1, "Specified package did not return any information");
 177                                 p.Close ();
 178                                 return null;
 179                         }
 180
 181                         string pkgout = p.StandardOutput.ReadToEnd ();
 182                         p.WaitForExit ();
 183                         if (p.ExitCode != 0) {
 184                                 if (report == null)
 185                                         throw new ApplicationException (pkgout);
 186
 187                                 report.Error (-27, "Error running pkg-config. Check the above output.");
 188                                 p.Close ();
 189                                 return null;
 190                         }
 191
 192                         p.Close ();
 193                         return pkgout;
 194                 }
 195
 196                 //
 197                 // Main compilation method
 198                 //
 199                 public bool Compile ()
 200                 {
 201                         var settings = ctx.Settings;
 202
 203                         //
 204                         // If we are an exe, require a source file for the entry point or
 205                         // if there is nothing to put in the assembly, and we are not a library
 206                         //
 207                         if (settings.FirstSourceFile == null &&
 208                                 ((settings.Target == Target.Exe || settings.Target == Target.WinExe || settings.Target == Target.Module) ||
 209                                 settings.Resources == null)) {
 210                                 Report.Error (2008, "No files to compile were specified");
 211                                 return false;
 212                         }
 213
 214                         TimeReporter tr = new TimeReporter (settings.Timestamps);
 215                         ctx.TimeReporter = tr;
 216                         tr.StartTotal ();
 217
 218                         var module = new ModuleContainer (ctx);
 219                         RootContext.ToplevelTypes = module;
 220
 221                         tr.Start (TimeReporter.TimerType.ParseTotal);
 222                         Parse (module);
 223                         tr.Stop (TimeReporter.TimerType.ParseTotal);
 224
 225                         if (Report.Errors > 0)
 226                                 return false;
 227
 228                         if (settings.TokenizeOnly || settings.ParseOnly) {
 229                                 tr.StopTotal ();
 230                                 tr.ShowStats ();
 231                                 return true;
 232                         }
 233
 234                         var output_file = settings.OutputFile;
 235                         string output_file_name;
 236                         if (output_file == null) {
 237                                 var source_file = settings.FirstSourceFile;
 238
 239                                 if (source_file == null) {
 240                                         Report.Error (1562, "If no source files are specified you must specify the output file with -out:");
 241                                         return false;
 242                                 }
 243
 244                                 output_file_name = source_file.Name;
 245                                 int pos = output_file_name.LastIndexOf ('.');
 246
 247                                 if (pos > 0)
 248                                         output_file_name = output_file_name.Substring (0, pos);
 249
 250                                 output_file_name += settings.TargetExt;
 251                                 output_file = output_file_name;
 252                         } else {
 253                                 output_file_name = Path.GetFileName (output_file);
 254                         }
 255
 256 #if STATIC
 257                         var importer = new StaticImporter (module);
 258                         var references_loader = new StaticLoader (importer, ctx);
 259
 260                         tr.Start (TimeReporter.TimerType.AssemblyBuilderSetup);
 261                         var assembly = new AssemblyDefinitionStatic (module, references_loader, output_file_name, output_file);
 262                         assembly.Create (references_loader.Domain);
 263                         tr.Stop (TimeReporter.TimerType.AssemblyBuilderSetup);
 264
 265                         // Create compiler types first even before any referenced
 266                         // assembly is loaded to allow forward referenced types from
 267                         // loaded assembly into compiled builder to be resolved
 268                         // correctly
 269                         tr.Start (TimeReporter.TimerType.CreateTypeTotal);
 270                         module.CreateContainer ();
 271                         importer.AddCompiledAssembly (assembly);
 272                         tr.Stop (TimeReporter.TimerType.CreateTypeTotal);
 273
 274                         references_loader.LoadReferences (module);
 275
 276                         tr.Start (TimeReporter.TimerType.PredefinedTypesInit);
 277                         if (!ctx.BuiltinTypes.CheckDefinitions (module))
 278                                 return false;
 279
 280                         tr.Stop (TimeReporter.TimerType.PredefinedTypesInit);
 281
 282                         references_loader.LoadModules (assembly, module.GlobalRootNamespace);
 283 #else
 284                         var assembly = new AssemblyDefinitionDynamic (module, output_file_name, output_file);
 285                         module.SetDeclaringAssembly (assembly);
 286
 287                         var importer = new ReflectionImporter (module, ctx.BuiltinTypes);
 288                         assembly.Importer = importer;
 289
 290                         var loader = new DynamicLoader (importer, ctx);
 291                         loader.LoadReferences (module);
 292
 293                         if (!ctx.BuiltinTypes.CheckDefinitions (module))
 294                                 return false;
 295
 296                         if (!assembly.Create (AppDomain.CurrentDomain, AssemblyBuilderAccess.Save))
 297                                 return false;
 298
 299                         module.CreateContainer ();
 300
 301                         loader.LoadModules (assembly, module.GlobalRootNamespace);
 302 #endif
 303                         module.InitializePredefinedTypes ();
 304
 305                         tr.Start (TimeReporter.TimerType.ModuleDefinitionTotal);
 306                         module.Define ();
 307                         tr.Stop (TimeReporter.TimerType.ModuleDefinitionTotal);
 308
 309                         if (Report.Errors > 0)
 310                                 return false;
 311
 312                         if (settings.DocumentationFile != null) {
 313                                 var doc = new DocumentationBuilder (module);
 314                                 doc.OutputDocComment (output_file, settings.DocumentationFile);
 315                         }
 316
 317                         assembly.Resolve ();
 318
 319                         if (Report.Errors > 0)
 320                                 return false;
 321
 322
 323                         tr.Start (TimeReporter.TimerType.EmitTotal);
 324                         assembly.Emit ();
 325                         tr.Stop (TimeReporter.TimerType.EmitTotal);
 326
 327                         if (Report.Errors > 0){
 328                                 return false;
 329                         }
 330
 331                         tr.Start (TimeReporter.TimerType.CloseTypes);
 332                         module.CloseContainer ();
 333                         tr.Stop (TimeReporter.TimerType.CloseTypes);
 334
 335                         tr.Start (TimeReporter.TimerType.Resouces);
 336                         assembly.EmbedResources ();
 337                         tr.Stop (TimeReporter.TimerType.Resouces);
 338
 339                         if (Report.Errors > 0)
 340                                 return false;
 341
 342                         assembly.Save ();
 343
 344 #if STATIC
 345                         references_loader.Dispose ();
 346 #endif
 347                         tr.StopTotal ();
 348                         tr.ShowStats ();
 349
 350                         return Report.Errors == 0;
 351                 }
 352         }
 353
 354         //
 355         // This is the only public entry point
 356         //
 357         public class CompilerCallableEntryPoint : MarshalByRefObject {
 358                 public static bool InvokeCompiler (string [] args, TextWriter error)
 359                 {
 360                         try {
 361                                 CommandLineParser cmd = new CommandLineParser (error);
 362                                 var setting = cmd.ParseArguments (args);
 363                                 if (setting == null)
 364                                         return false;
 365
 366                                 var d = new Driver (new CompilerContext (setting, new StreamReportPrinter (error)));
 367                                 return d.Compile ();
 368                         } finally {
 369                                 Reset ();
 370                         }
 371                 }
 372
 373                 public static int[] AllWarningNumbers {
 374                         get {
 375                                 return Report.AllWarnings;
 376                         }
 377                 }
 378
 379                 public static void Reset ()
 380                 {
 381                         Reset (true);
 382                 }
 383
 384                 public static void PartialReset ()
 385                 {
 386                         Reset (false);
 387                 }
 388
 389                 public static void Reset (bool full_flag)
 390                 {
 391                         Location.Reset ();
 392
 393                         if (!full_flag)
 394                                 return;
 395
 396                         SymbolWriter.Reset ();
 397                         Linq.QueryBlock.TransparentParameter.Reset ();
 398                         TypeInfo.Reset ();
 399                 }
 400         }
 401 }