mcs/class/corlib/System.Reflection.Emit/AssemblyBuilder.cs

   1 //
   2 // System.Reflection.Emit/AssemblyBuilder.cs
   3 //
   4 // Author:
   5 //   Paolo Molaro (lupus@ximian.com)
   6 //
   7 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   8 //
   9
  10 using System;
  11 using System.Reflection;
  12 using System.Resources;
  13 using System.IO;
  14 using System.Security.Policy;
  15 using System.Runtime.Serialization;
  16 using System.Globalization;
  17 using System.Runtime.CompilerServices;
  18 using System.Collections;
  19 using System.Runtime.InteropServices;
  20 using System.Security.Cryptography;
  21 using System.Security.Permissions;
  22
  23 using Mono.Security;
  24 using Mono.Security.Cryptography;
  25
  26 namespace System.Reflection.Emit {
  27
  28         internal struct RefEmitPermissionSet {
  29                 public SecurityAction action;
  30                 public string pset;
  31
  32                 public RefEmitPermissionSet (SecurityAction action, string pset) {
  33                         this.action = action;
  34                         this.pset = pset;
  35                 }
  36         }
  37
  38         internal struct MonoResource {
  39                 public byte[] data;
  40                 public string name;
  41                 public string filename;
  42                 public ResourceAttributes attrs;
  43                 public int offset;
  44         }
  45
  46         internal struct MonoWin32Resource {
  47                 public int res_type;
  48                 public int res_id;
  49                 public int lang_id;
  50                 public byte[] data;
  51
  52                 public MonoWin32Resource (int res_type, int res_id, int lang_id, byte[] data) {
  53                         this.res_type = res_type;
  54                         this.res_id = res_id;
  55                         this.lang_id = lang_id;
  56                         this.data = data;
  57                 }
  58         }
  59
  60         public sealed class AssemblyBuilder : Assembly {
  61                 #region Sync with reflection.h
  62                 private IntPtr dynamic_assembly;
  63                 private MethodInfo entry_point;
  64                 private ModuleBuilder[] modules;
  65                 private string name;
  66                 private string dir;
  67                 private CustomAttributeBuilder[] cattrs;
  68                 private MonoResource[] resources;
  69                 byte[] public_key;
  70                 string version;
  71                 string culture;
  72                 uint algid;
  73                 uint flags;
  74                 PEFileKinds pekind = PEFileKinds.Dll;
  75                 bool delay_sign;
  76                 uint access;
  77                 Module[] loaded_modules;
  78                 MonoWin32Resource[] win32_resources;
  79                 #endregion
  80                 internal Type corlib_object_type = typeof (System.Object);
  81                 internal Type corlib_value_type = typeof (System.ValueType);
  82                 internal Type corlib_enum_type = typeof (System.Enum);
  83                 internal Type corlib_void_type = typeof (void);
  84                 ArrayList resource_writers = null;
  85                 Win32VersionResource version_res;
  86                 bool created;
  87                 bool is_module_only;
  88                 private Mono.Security.StrongName sn;
  89
  90                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  91                 private static extern void basic_init (AssemblyBuilder ab);
  92
  93                 internal AssemblyBuilder (AssemblyName n, string directory, AssemblyBuilderAccess access) {
  94                         name = n.Name;
  95                         if (directory == null || directory == String.Empty)
  96                                 dir = Directory.GetCurrentDirectory ();
  97                         else
  98                                 dir = directory;
  99                         this.access = (uint)access;
 100
 101                         /* Set defaults from n */
 102                         if (n.CultureInfo != null) {
 103                                 culture = n.CultureInfo.Name;
 104                         }
 105                         Version v = n.Version;
 106                         if (v != null) {
 107                                 version = v.ToString ();
 108                         }
 109
 110                         if (n.KeyPair != null) {
 111                                 sn = n.KeyPair.StrongName ();
 112                         }
 113
 114                         basic_init (this);
 115                 }
 116
 117                 public override string CodeBase {
 118                         get {
 119                                 throw not_supported ();
 120                         }
 121                 }
 122
 123                 public override MethodInfo EntryPoint {
 124                         get {
 125                                 return entry_point;
 126                         }
 127                 }
 128
 129                 public override string Location {
 130                         get {
 131                                 throw not_supported ();
 132                         }
 133                 }
 134
 135 #if NET_1_1
 136                 /* This is to keep signature compatibility with MS.NET */
 137                 public override string ImageRuntimeVersion {
 138                         get {
 139                                 return base.ImageRuntimeVersion;
 140                         }
 141                 }
 142 #endif
 143
 144                 public void AddResourceFile (string name, string fileName)
 145                 {
 146                         AddResourceFile (name, fileName, ResourceAttributes.Public);
 147                 }
 148
 149                 public void AddResourceFile (string name, string fileName, ResourceAttributes attribute)
 150                 {
 151                         AddResourceFile (name, fileName, attribute, true);
 152                 }
 153
 154                 private void AddResourceFile (string name, string fileName, ResourceAttributes attribute, bool fileNeedsToExists)
 155                 {
 156                         check_name_and_filename (name, fileName, fileNeedsToExists);
 157
 158                         // Resource files are created/searched under the assembly storage
 159                         // directory
 160                         if (dir != null)
 161                                 fileName = Path.Combine (dir, fileName);
 162
 163                         if (resources != null) {
 164                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 165                                 System.Array.Copy(resources, new_r, resources.Length);
 166                                 resources = new_r;
 167                         } else {
 168                                 resources = new MonoResource [1];
 169                         }
 170                         int p = resources.Length - 1;
 171                         resources [p].name = name;
 172                         resources [p].filename = fileName;
 173                         resources [p].attrs = attribute;
 174                 }
 175
 176                 public void EmbedResourceFile (string name, string fileName)
 177                 {
 178                         EmbedResourceFile (name, fileName, ResourceAttributes.Public);
 179                 }
 180
 181                 public void EmbedResourceFile (string name, string fileName, ResourceAttributes attribute)
 182                 {
 183                         if (resources != null) {
 184                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 185                                 System.Array.Copy(resources, new_r, resources.Length);
 186                                 resources = new_r;
 187                         } else {
 188                                 resources = new MonoResource [1];
 189                         }
 190                         int p = resources.Length - 1;
 191                         resources [p].name = name;
 192                         resources [p].attrs = attribute;
 193                         try {
 194                                 FileStream s = new FileStream (fileName, FileMode.Open, FileAccess.Read);
 195                                 long len = s.Length;
 196                                 resources [p].data = new byte [len];
 197                                 s.Read (resources [p].data, 0, (int)len);
 198                                 s.Close ();
 199                         } catch {
 200                                 /* do something */
 201                         }
 202                 }
 203
 204                 internal void EmbedResource (string name, byte[] blob, ResourceAttributes attribute)
 205                 {
 206                         if (resources != null) {
 207                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 208                                 System.Array.Copy(resources, new_r, resources.Length);
 209                                 resources = new_r;
 210                         } else {
 211                                 resources = new MonoResource [1];
 212                         }
 213                         int p = resources.Length - 1;
 214                         resources [p].name = name;
 215                         resources [p].attrs = attribute;
 216                         resources [p].data = blob;
 217                 }
 218
 219                 public ModuleBuilder DefineDynamicModule (string name)
 220                 {
 221                         return DefineDynamicModule (name, name, false, true);
 222                 }
 223
 224                 public ModuleBuilder DefineDynamicModule (string name, bool emitSymbolInfo)
 225                 {
 226                         return DefineDynamicModule (name, name, emitSymbolInfo, true);
 227                 }
 228
 229                 public ModuleBuilder DefineDynamicModule(string name, string fileName)
 230                 {
 231                         return DefineDynamicModule (name, fileName, false, false);
 232                 }
 233
 234                 public ModuleBuilder DefineDynamicModule (string name, string fileName,
 235                                                           bool emitSymbolInfo)
 236                 {
 237                         return DefineDynamicModule (name, fileName, emitSymbolInfo, false);
 238                 }
 239
 240                 private ModuleBuilder DefineDynamicModule (string name, string fileName,
 241                                                                                                    bool emitSymbolInfo, bool transient)
 242                 {
 243                         check_name_and_filename (name, fileName, false);
 244
 245                         if (!transient) {
 246                                 if (Path.GetExtension (fileName) == String.Empty)
 247                                         throw new ArgumentException ("Module file name '" + fileName + "' must have file extension.");
 248                                 if (!IsSave)
 249                                         throw new NotSupportedException ("Persistable modules are not supported in a dynamic assembly created with AssemblyBuilderAccess.Run");
 250                                 if (created)
 251                                         throw new InvalidOperationException ("Assembly was already saved.");
 252                         }
 253
 254                         ModuleBuilder r = new ModuleBuilder (this, name, fileName, emitSymbolInfo, transient);
 255
 256                         if ((modules != null) && is_module_only)
 257                                 throw new InvalidOperationException ("A module-only assembly can only contain one module.");
 258
 259                         if (modules != null) {
 260                                 ModuleBuilder[] new_modules = new ModuleBuilder [modules.Length + 1];
 261                                 System.Array.Copy(modules, new_modules, modules.Length);
 262                                 modules = new_modules;
 263                         } else {
 264                                 modules = new ModuleBuilder [1];
 265                         }
 266                         modules [modules.Length - 1] = r;
 267                         return r;
 268                 }
 269
 270                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 271                 private extern Module InternalAddModule (string fileName);
 272
 273                 /*
 274                  * Mono extension to support /addmodule in mcs.
 275                  */
 276                 internal Module AddModule (string fileName)
 277                 {
 278                         if (fileName == null)
 279                                 throw new ArgumentNullException (fileName);
 280
 281                         Module m = InternalAddModule (fileName);
 282
 283                         if (loaded_modules != null) {
 284                                 Module[] new_modules = new Module [loaded_modules.Length + 1];
 285                                 System.Array.Copy (loaded_modules, new_modules, loaded_modules.Length);
 286                                 loaded_modules = new_modules;
 287                         } else {
 288                                 loaded_modules = new Module [1];
 289                         }
 290                         loaded_modules [loaded_modules.Length - 1] = m;
 291
 292                         return m;
 293                 }
 294
 295                 public IResourceWriter DefineResource (string name, string description, string fileName)
 296                 {
 297                         return DefineResource (name, description, fileName, ResourceAttributes.Public);
 298                 }
 299
 300                 public IResourceWriter DefineResource (string name, string description,
 301                                                        string fileName, ResourceAttributes attribute)
 302                 {
 303                         IResourceWriter writer;
 304
 305                         // description seems to be ignored
 306                         AddResourceFile (name, fileName, attribute, false);
 307                         writer = new ResourceWriter (fileName);
 308                         if (resource_writers == null)
 309                                 resource_writers = new ArrayList ();
 310                         resource_writers.Add (writer);
 311                         return writer;
 312                 }
 313
 314                 private void AddUnmanagedResource (Win32Resource res) {
 315                         MemoryStream ms = new MemoryStream ();
 316                         res.WriteTo (ms);
 317
 318                         if (win32_resources != null) {
 319                                 MonoWin32Resource[] new_res = new MonoWin32Resource [win32_resources.Length + 1];
 320                                 System.Array.Copy (win32_resources, new_res, win32_resources.Length);
 321                                 win32_resources = new_res;
 322                         }
 323                         else
 324                                 win32_resources = new MonoWin32Resource [1];
 325
 326                         win32_resources [win32_resources.Length - 1] = new MonoWin32Resource (res.Type.Id, res.Name.Id, res.Language, ms.ToArray ());
 327                 }
 328
 329                 [MonoTODO]
 330                 public void DefineUnmanagedResource (byte[] resource)
 331                 {
 332                         if (resource == null)
 333                                 throw new ArgumentNullException ("resource");
 334
 335                         /*
 336                          * The format of the argument byte array is not documented
 337                          * so this method is impossible to implement.
 338                          */
 339
 340                         throw new NotImplementedException ();
 341                 }
 342
 343                 public void DefineUnmanagedResource (string resourceFileName)
 344                 {
 345                         if (resourceFileName == null)
 346                                 throw new ArgumentNullException ("resourceFileName");
 347                         if (resourceFileName == String.Empty)
 348                                 throw new ArgumentException ("resourceFileName");
 349                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 350                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exists or is a directory.");
 351
 352                         using (FileStream fs = new FileStream (resourceFileName, FileMode.Open)) {
 353                                 Win32ResFileReader reader = new Win32ResFileReader (fs);
 354
 355                                 foreach (Win32EncodedResource res in reader.ReadResources ()) {
 356                                         if (res.Name.IsName || res.Type.IsName)
 357                                                 throw new InvalidOperationException ("resource files with named resources or non-default resource types are not supported.");
 358
 359                                         AddUnmanagedResource (res);
 360                                 }
 361                         }
 362                 }
 363
 364                 public void DefineVersionInfoResource ()
 365                 {
 366                         if (version_res != null)
 367                                 throw new ArgumentException ("Native resource has already been defined.");
 368
 369                         version_res = new Win32VersionResource (1, 0);
 370
 371                         if (cattrs != null) {
 372                                 foreach (CustomAttributeBuilder cb in cattrs) {
 373                                         string attrname = cb.Ctor.ReflectedType.FullName;
 374
 375                                         if (attrname == "System.Reflection.AssemblyProductAttribute")
 376                                                 version_res.ProductName = cb.string_arg ();
 377                                         else if (attrname == "System.Reflection.AssemblyCompanyAttribute")
 378                                                 version_res.CompanyName = cb.string_arg ();
 379                                         else if (attrname == "System.Reflection.AssemblyCopyrightAttribute")
 380                                                 version_res.LegalCopyright = cb.string_arg ();
 381                                         else if (attrname == "System.Reflection.AssemblyTrademarkAttribute")
 382                                                 version_res.LegalTrademarks = cb.string_arg ();
 383                                         else if (attrname == "System.Reflection.AssemblyCultureAttribute")
 384                                                 version_res.FileLanguage = new CultureInfo (cb.string_arg ()).LCID;
 385                                         else if (attrname == "System.Reflection.AssemblyFileVersionAttribute")
 386                                                 version_res.FileVersion = cb.string_arg ();
 387                                         else if (attrname == "System.Reflection.AssemblyInformationalVersionAttribute")
 388                                                 version_res.ProductVersion = cb.string_arg ();
 389                                         else if (attrname == "System.Reflection.AssemblyTitleAttribute")
 390                                                 version_res.FileDescription = cb.string_arg ();
 391                                         else if (attrname == "System.Reflection.AssemblyDescriptionAttribute")
 392                                                 version_res.Comments = cb.string_arg ();
 393                                 }
 394                         }
 395                 }
 396
 397                 public void DefineVersionInfoResource (string product, string productVersion,
 398                                                        string company, string copyright, string trademark)
 399                 {
 400                         if (version_res != null)
 401                                 throw new ArgumentException ("Native resource has already been defined.");
 402
 403                         /*
 404                          * We can only create the resource later, when the file name and
 405                          * the binary version is known.
 406                          */
 407
 408                         version_res = new Win32VersionResource (1, 0);
 409                         version_res.ProductName = product;
 410                         version_res.ProductVersion = productVersion;
 411                         version_res.CompanyName = company;
 412                         version_res.LegalCopyright = copyright;
 413                         version_res.LegalTrademarks = trademark;
 414                 }
 415
 416                 /*
 417                  * Mono extension to support /win32icon in mcs
 418                  */
 419                 internal void DefineIconResource (string iconFileName)
 420                 {
 421                         if (iconFileName == null)
 422                                 throw new ArgumentNullException ("iconFileName");
 423                         if (iconFileName == String.Empty)
 424                                 throw new ArgumentException ("iconFileName");
 425                         if (!File.Exists (iconFileName) || Directory.Exists (iconFileName))
 426                                 throw new FileNotFoundException ("File '" + iconFileName + "' does not exists or is a directory.");
 427
 428                         using (FileStream fs = new FileStream (iconFileName, FileMode.Open)) {
 429                                 Win32IconFileReader reader = new Win32IconFileReader (fs);
 430
 431                                 ICONDIRENTRY[] entries = reader.ReadIcons ();
 432
 433                                 Win32IconResource[] icons = new Win32IconResource [entries.Length];
 434                                 for (int i = 0; i < entries.Length; ++i) {
 435                                         icons [i] = new Win32IconResource (i + 1, 0, entries [i]);
 436                                         AddUnmanagedResource (icons [i]);
 437                                 }
 438
 439                                 Win32GroupIconResource group = new Win32GroupIconResource (1, 0, icons);
 440                                 AddUnmanagedResource (group);
 441                         }
 442                 }
 443
 444                 private void DefineVersionInfoResourceImpl (string fileName) {
 445                         // Add missing info
 446                         if (version_res.FileVersion == "0.0.0.0")
 447                                 version_res.FileVersion = version;
 448                         version_res.InternalName = Path.GetFileNameWithoutExtension (fileName);
 449                         version_res.OriginalFilename = fileName;
 450
 451                         AddUnmanagedResource (version_res);
 452                 }
 453
 454                 public ModuleBuilder GetDynamicModule (string name)
 455                 {
 456                         if (name == null)
 457                                 throw new ArgumentNullException ("name");
 458                         if (name == "")
 459                                 throw new ArgumentException ("Name can't be null");
 460
 461                         if (modules != null)
 462                                 for (int i = 0; i < modules.Length; ++i)
 463                                         if (modules [i].name == name)
 464                                                 return modules [i];
 465                         return null;
 466                 }
 467
 468                 public override Type[] GetExportedTypes ()
 469                 {
 470                         throw not_supported ();
 471                 }
 472
 473                 public override FileStream GetFile (string name)
 474                 {
 475                         throw not_supported ();
 476                 }
 477
 478                 public override FileStream[] GetFiles() {
 479                         throw not_supported ();
 480                 }
 481
 482                 public override FileStream[] GetFiles(bool getResourceModules) {
 483                         throw not_supported ();
 484                 }
 485
 486                 public override ManifestResourceInfo GetManifestResourceInfo(string resourceName) {
 487                         throw not_supported ();
 488                 }
 489
 490                 public override string[] GetManifestResourceNames() {
 491                         throw not_supported ();
 492                 }
 493
 494                 public override Stream GetManifestResourceStream(string name) {
 495                         throw not_supported ();
 496                 }
 497                 public override Stream GetManifestResourceStream(Type type, string name) {
 498                         throw not_supported ();
 499                 }
 500
 501                 internal bool IsSave {
 502                         get {
 503                                 return access != (uint)AssemblyBuilderAccess.Run;
 504                         }
 505                 }
 506
 507                 internal string AssemblyDir {
 508                         get {
 509                                 return dir;
 510                         }
 511                 }
 512
 513                 /*
 514                  * Mono extension. If this is set, the assembly can only contain one
 515                  * module, access should be Save, and the saved image will not contain an
 516                  * assembly manifest.
 517                  */
 518                 internal bool IsModuleOnly {
 519                         get {
 520                                 return is_module_only;
 521                         }
 522                         set {
 523                                 is_module_only = value;
 524                         }
 525                 }
 526
 527                 public void Save (string assemblyFileName)
 528                 {
 529                         if (resource_writers != null) {
 530                                 foreach (IResourceWriter writer in resource_writers) {
 531                                         writer.Generate ();
 532                                         writer.Close ();
 533                                 }
 534                         }
 535
 536                         // Create a main module if not already created
 537                         ModuleBuilder mainModule = null;
 538                         if (modules != null) {
 539                                 foreach (ModuleBuilder module in modules)
 540                                         if (module.FullyQualifiedName == assemblyFileName)
 541                                                 mainModule = module;
 542                         }
 543                         if (mainModule == null)
 544                                 mainModule = DefineDynamicModule ("RefEmit_OnDiskManifestModule", assemblyFileName);
 545
 546                         if (!is_module_only)
 547                                 mainModule.IsMain = true;
 548
 549                         /*
 550                          * Create a new entry point if the one specified
 551                          * by the user is in another module.
 552                          */
 553                         if ((entry_point != null) && entry_point.DeclaringType.Module != mainModule) {
 554                                 Type[] paramTypes;
 555                                 if (entry_point.GetParameters ().Length == 1)
 556                                         paramTypes = new Type [] { typeof (string) };
 557                                 else
 558                                         paramTypes = new Type [0];
 559
 560                                 MethodBuilder mb = mainModule.DefineGlobalMethod ("__EntryPoint$", MethodAttributes.Static|MethodAttributes.PrivateScope, entry_point.ReturnType, paramTypes);
 561                                 ILGenerator ilgen = mb.GetILGenerator ();
 562                                 if (paramTypes.Length == 1)
 563                                         ilgen.Emit (OpCodes.Ldarg_0);
 564                                 ilgen.Emit (OpCodes.Tailcall);
 565                                 ilgen.Emit (OpCodes.Call, entry_point);
 566                                 ilgen.Emit (OpCodes.Ret);
 567
 568                                 entry_point = mb;
 569                         }
 570
 571                         if (version_res != null)
 572                                 DefineVersionInfoResourceImpl (assemblyFileName);
 573
 574                         if (sn != null) {
 575                                 // runtime needs to value to embed it into the assembly
 576                                 public_key = sn.PublicKey;
 577                         }
 578
 579                         foreach (ModuleBuilder module in modules)
 580                                 if (module != mainModule)
 581                                         module.Save ();
 582
 583                         // Write out the main module at the end, because it needs to
 584                         // contain the hash of the other modules
 585                         mainModule.Save ();
 586
 587                         if ((sn != null) && (sn.CanSign)) {
 588                                 sn.Sign (System.IO.Path.Combine (this.AssemblyDir, assemblyFileName));
 589                         }
 590
 591                         created = true;
 592                 }
 593
 594                 public void SetEntryPoint (MethodInfo entryMethod)
 595                 {
 596                         SetEntryPoint (entryMethod, PEFileKinds.ConsoleApplication);
 597                 }
 598
 599                 public void SetEntryPoint (MethodInfo entryMethod, PEFileKinds fileKind)
 600                 {
 601                         if (entryMethod == null)
 602                                 throw new ArgumentNullException ("entryMethod");
 603                         if (entryMethod.DeclaringType.Assembly != this)
 604                                 throw new InvalidOperationException ("Entry method is not defined in the same assembly.");
 605
 606                         entry_point = entryMethod;
 607                         pekind = fileKind;
 608                 }
 609
 610                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder)
 611                 {
 612                         if (customBuilder == null)
 613                                 throw new ArgumentNullException ("customBuilder");
 614
 615                         string attrname = customBuilder.Ctor.ReflectedType.FullName;
 616                         byte[] data;
 617                         int len, pos;
 618
 619                         if (attrname == "System.Reflection.AssemblyVersionAttribute") {
 620                                 version = create_assembly_version (customBuilder.string_arg ());
 621                                 return;
 622                         } else if (attrname == "System.Reflection.AssemblyCultureAttribute") {
 623                                 culture = customBuilder.string_arg ();
 624                         } else if (attrname == "System.Reflection.AssemblyAlgorithmIdAttribute") {
 625                                 data = customBuilder.Data;
 626                                 pos = 2;
 627                                 algid = (uint)data [pos];
 628                                 algid |= ((uint)data [pos + 1]) << 8;
 629                                 algid |= ((uint)data [pos + 2]) << 16;
 630                                 algid |= ((uint)data [pos + 3]) << 24;
 631                         } else if (attrname == "System.Reflection.AssemblyFlagsAttribute") {
 632                                 data = customBuilder.Data;
 633                                 pos = 2;
 634                                 flags = (uint)data [pos];
 635                                 flags |= ((uint)data [pos + 1]) << 8;
 636                                 flags |= ((uint)data [pos + 2]) << 16;
 637                                 flags |= ((uint)data [pos + 3]) << 24;
 638                                 return;
 639                         }
 640
 641                         if (cattrs != null) {
 642                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 643                                 cattrs.CopyTo (new_array, 0);
 644                                 new_array [cattrs.Length] = customBuilder;
 645                                 cattrs = new_array;
 646                         } else {
 647                                 cattrs = new CustomAttributeBuilder [1];
 648                                 cattrs [0] = customBuilder;
 649                         }
 650                 }
 651
 652                 public void SetCustomAttribute ( ConstructorInfo con, byte[] binaryAttribute) {
 653                         if (con == null)
 654                                 throw new ArgumentNullException ("con");
 655                         if (binaryAttribute == null)
 656                                 throw new ArgumentNullException ("binaryAttribute");
 657
 658                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 659                 }
 660
 661                 public void SetCorlibTypeBuilders (Type corlib_object_type, Type corlib_value_type, Type corlib_enum_type) {
 662                         this.corlib_object_type = corlib_object_type;
 663                         this.corlib_value_type = corlib_value_type;
 664                         this.corlib_enum_type = corlib_enum_type;
 665                 }
 666
 667                 public void SetCorlibTypeBuilders (Type corlib_object_type, Type corlib_value_type, Type corlib_enum_type, Type corlib_void_type)
 668                 {
 669                         SetCorlibTypeBuilders (corlib_object_type, corlib_value_type, corlib_enum_type);
 670                         this.corlib_void_type = corlib_void_type;
 671                 }
 672
 673                 private Exception not_supported () {
 674                         // Strange message but this is what MS.NET prints...
 675                         return new NotSupportedException ("The invoked member is not supported in a dynamic module.");
 676                 }
 677
 678                 private void check_name_and_filename (string name, string fileName,
 679                                                                                           bool fileNeedsToExists) {
 680                         if (name == null)
 681                                 throw new ArgumentNullException ("name");
 682                         if (fileName == null)
 683                                 throw new ArgumentNullException ("fileName");
 684                         if (name == "")
 685                                 throw new ArgumentException ("name cannot be empty", "name");
 686                         if (fileName == "")
 687                                 throw new ArgumentException ("fileName cannot be empty", "fileName");
 688                         if (Path.GetFileName (fileName) != fileName)
 689                                 throw new ArgumentException ("fileName '" + fileName + "' must not include a path.");
 690
 691                         // Resource files are created/searched under the assembly storage
 692                         // directory
 693                         string fullFileName = fileName;
 694                         if (dir != null)
 695                                 fullFileName = Path.Combine (dir, fileName);
 696
 697                         if (fileNeedsToExists && !File.Exists (fullFileName))
 698                                 throw new FileNotFoundException ("Could not find file '" + fileName + "'");
 699
 700                         if (resources != null) {
 701                                 for (int i = 0; i < resources.Length; ++i) {
 702                                         if (resources [i].filename == fullFileName)
 703                                                 throw new ArgumentException ("Duplicate file name '" + fileName + "'");
 704                                         if (resources [i].name == name)
 705                                                 throw new ArgumentException ("Duplicate name '" + name + "'");
 706                                 }
 707                         }
 708
 709                         if (modules != null) {
 710                                 for (int i = 0; i < modules.Length; ++i) {
 711                                         // Use fileName instead of fullFileName here
 712                                         if (!modules [i].IsTransient () && (modules [i].FileName == fileName))
 713                                                 throw new ArgumentException ("Duplicate file name '" + fileName + "'");
 714                                         if (modules [i].Name == name)
 715                                                 throw new ArgumentException ("Duplicate name '" + name + "'");
 716                                 }
 717                         }
 718                 }
 719
 720                 private String create_assembly_version (String version) {
 721                         String[] parts = version.Split ('.');
 722                         int[] ver = new int [4] { 0, 0, 0, 0 };
 723
 724                         if ((parts.Length < 0) || (parts.Length > 4))
 725                                 throw new ArgumentException ("The version specified '" + version + "' is invalid");
 726
 727                         for (int i = 0; i < parts.Length; ++i) {
 728                                 if (parts [i] == "*") {
 729                                         DateTime now = DateTime.Now;
 730
 731                                         if (i == 2) {
 732                                                 ver [2] = (now - new DateTime (2000, 1, 1)).Days;
 733                                                 if (parts.Length == 3)
 734                                                         ver [3] = (now.Second + (now.Minute * 60) + (now.Hour * 3600)) / 2;
 735                                         }
 736                                         else
 737                                                 if (i == 3)
 738                                                         ver [3] = (now.Second + (now.Minute * 60) + (now.Hour * 3600)) / 2;
 739                                         else
 740                                                 throw new ArgumentException ("The version specified '" + version + "' is invalid");
 741                                 }
 742                                 else {
 743                                         try {
 744                                                 ver [i] = Int32.Parse (parts [i]);
 745                                         }
 746                                         catch (FormatException) {
 747                                                 throw new ArgumentException ("The version specified '" + version + "' is invalid");
 748                                         }
 749                                 }
 750                         }
 751
 752                         return ver [0] + "." + ver [1] + "." + ver [2] + "." + ver [3];
 753                 }
 754         }
 755 }