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

   1 //
   2 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23
  24 //
  25 // System.Reflection.Emit/ModuleBuilder.cs
  26 //
  27 // Author:
  28 //   Paolo Molaro (lupus@ximian.com)
  29 //
  30 // (C) 2001 Ximian, Inc.  http://www.ximian.com
  31 //
  32
  33 #if !FULL_AOT_RUNTIME
  34 using System;
  35 using System.Reflection;
  36 using System.Collections;
  37 using System.Collections.Generic;
  38 using System.Runtime.CompilerServices;
  39 using System.Runtime.InteropServices;
  40 using System.Diagnostics.SymbolStore;
  41 using System.IO;
  42 using System.Resources;
  43 using System.Globalization;
  44
  45 namespace System.Reflection.Emit {
  46         [ComVisible (true)]
  47         [ComDefaultInterface (typeof (_ModuleBuilder))]
  48         [ClassInterface (ClassInterfaceType.None)]
  49         [StructLayout (LayoutKind.Sequential)]
  50         public class ModuleBuilder : Module, _ModuleBuilder {
  51
  52 #pragma warning disable 169, 414
  53                 #region Sync with object-internals.h
  54                 private UIntPtr dynamic_image; /* GC-tracked */
  55                 private int num_types;
  56                 private TypeBuilder[] types;
  57                 private CustomAttributeBuilder[] cattrs;
  58                 private byte[] guid;
  59                 private int table_idx;
  60                 internal AssemblyBuilder assemblyb;
  61                 private MethodBuilder[] global_methods;
  62                 private FieldBuilder[] global_fields;
  63                 bool is_main;
  64                 private MonoResource[] resources;
  65                 private IntPtr unparented_classes;
  66                 #endregion
  67 #pragma warning restore 169, 414
  68
  69                 private TypeBuilder global_type;
  70                 private Type global_type_created;
  71                 // name_cache keys are display names
  72                 Dictionary<TypeName, TypeBuilder> name_cache;
  73                 Dictionary<string, int> us_string_cache;
  74                 private int[] table_indexes;
  75                 bool transient;
  76                 ModuleBuilderTokenGenerator token_gen;
  77                 Hashtable resource_writers;
  78                 ISymbolWriter symbolWriter;
  79
  80                 static bool has_warned_about_symbolWriter;
  81
  82                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  83                 private static extern void basic_init (ModuleBuilder ab);
  84
  85                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  86                 private static extern void set_wrappers_type (ModuleBuilder mb, Type ab);
  87
  88                 internal ModuleBuilder (AssemblyBuilder assb, string name, string fullyqname, bool emitSymbolInfo, bool transient) {
  89                         this.name = this.scopename = name;
  90                         this.fqname = fullyqname;
  91                         this.assembly = this.assemblyb = assb;
  92                         this.transient = transient;
  93                         // to keep mcs fast we do not want CryptoConfig wo be involved to create the RNG
  94                         guid = Guid.FastNewGuidArray ();
  95                         // guid = Guid.NewGuid().ToByteArray ();
  96                         table_idx = get_next_table_index (this, 0x00, true);
  97                         name_cache = new Dictionary<TypeName, TypeBuilder> ();
  98                         us_string_cache = new Dictionary<string, int> (512);
  99
 100                         basic_init (this);
 101
 102                         CreateGlobalType ();
 103
 104                         if (assb.IsRun) {
 105                                 TypeBuilder tb = new TypeBuilder (this, TypeAttributes.Abstract, 0xFFFFFF); /*last valid token*/
 106                                 Type type = tb.CreateType ();
 107                                 set_wrappers_type (this, type);
 108                         }
 109
 110                         if (emitSymbolInfo) {
 111                                 Assembly asm = Assembly.LoadWithPartialName ("Mono.CompilerServices.SymbolWriter");
 112
 113                                 Type t = null;
 114                                 if (asm != null)
 115                                         t = asm.GetType ("Mono.CompilerServices.SymbolWriter.SymbolWriterImpl");
 116
 117                                 if (t == null) {
 118                                         WarnAboutSymbolWriter ("Failed to load the default Mono.CompilerServices.SymbolWriter assembly");
 119                                 } else {
 120                                         try {
 121                                                 symbolWriter = (ISymbolWriter) Activator.CreateInstance (t, new object[] { this });
 122                                         } catch (System.MissingMethodException) {
 123                                                 WarnAboutSymbolWriter ("The default Mono.CompilerServices.SymbolWriter is not available on this platform");
 124                                                 return;
 125                                         }
 126                                 }
 127
 128                                 string fileName = fqname;
 129                                 if (assemblyb.AssemblyDir != null)
 130                                         fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 131                                 symbolWriter.Initialize (IntPtr.Zero, fileName, true);
 132                         }
 133                 }
 134
 135                 static void WarnAboutSymbolWriter (string message)
 136                 {
 137                         if (has_warned_about_symbolWriter)
 138                                 return;
 139
 140                         has_warned_about_symbolWriter = true;
 141                         Console.Error.WriteLine ("WARNING: {0}", message);
 142                 }
 143
 144                 public override string FullyQualifiedName {get { return fqname;}}
 145
 146                 public bool IsTransient () {
 147                         return transient;
 148                 }
 149
 150                 public void CreateGlobalFunctions ()
 151                 {
 152                         if (global_type_created != null)
 153                                 throw new InvalidOperationException ("global methods already created");
 154                         if (global_type != null)
 155                                 global_type_created = global_type.CreateType ();
 156                 }
 157
 158                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 159                         if (data == null)
 160                                 throw new ArgumentNullException ("data");
 161
 162                         FieldBuilder fb = DefineUninitializedData (name, data.Length,
 163                                                                                                            attributes | FieldAttributes.HasFieldRVA);
 164                         fb.SetRVAData (data);
 165
 166                         return fb;
 167                 }
 168
 169                 public FieldBuilder DefineUninitializedData (string name, int size, FieldAttributes attributes)
 170                 {
 171                         if (name == null)
 172                                 throw new ArgumentNullException ("name");
 173                         if (global_type_created != null)
 174                                 throw new InvalidOperationException ("global fields already created");
 175                         if ((size <= 0) || (size > 0x3f0000))
 176                                 throw new ArgumentException ("size", "Data size must be > 0 and < 0x3f0000");
 177
 178                         CreateGlobalType ();
 179
 180                         string typeName = "$ArrayType$" + size;
 181                         Type datablobtype = GetType (typeName, false, false);
 182                         if (datablobtype == null) {
 183                                 TypeBuilder tb = DefineType (typeName,
 184                                     TypeAttributes.Public|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 185                                         assemblyb.corlib_value_type, null, PackingSize.Size1, size);
 186                                 tb.CreateType ();
 187                                 datablobtype = tb;
 188                         }
 189                         FieldBuilder fb = global_type.DefineField (name, datablobtype, attributes|FieldAttributes.Static);
 190
 191                         if (global_fields != null) {
 192                                 FieldBuilder[] new_fields = new FieldBuilder [global_fields.Length+1];
 193                                 System.Array.Copy (global_fields, new_fields, global_fields.Length);
 194                                 new_fields [global_fields.Length] = fb;
 195                                 global_fields = new_fields;
 196                         } else {
 197                                 global_fields = new FieldBuilder [1];
 198                                 global_fields [0] = fb;
 199                         }
 200                         return fb;
 201                 }
 202
 203                 private void addGlobalMethod (MethodBuilder mb) {
 204                         if (global_methods != null) {
 205                                 MethodBuilder[] new_methods = new MethodBuilder [global_methods.Length+1];
 206                                 System.Array.Copy (global_methods, new_methods, global_methods.Length);
 207                                 new_methods [global_methods.Length] = mb;
 208                                 global_methods = new_methods;
 209                         } else {
 210                                 global_methods = new MethodBuilder [1];
 211                                 global_methods [0] = mb;
 212                         }
 213                 }
 214
 215                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes)
 216                 {
 217                         return DefineGlobalMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 218                 }
 219
 220                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 221                         return DefineGlobalMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 222                 }
 223
 224                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] requiredReturnTypeCustomModifiers, Type[] optionalReturnTypeCustomModifiers, Type[] parameterTypes, Type[][] requiredParameterTypeCustomModifiers, Type[][] optionalParameterTypeCustomModifiers)
 225                 {
 226                         if (name == null)
 227                                 throw new ArgumentNullException ("name");
 228                         if ((attributes & MethodAttributes.Static) == 0)
 229                                 throw new ArgumentException ("global methods must be static");
 230                         if (global_type_created != null)
 231                                 throw new InvalidOperationException ("global methods already created");
 232                         CreateGlobalType ();
 233                         MethodBuilder mb = global_type.DefineMethod (name, attributes, callingConvention, returnType, requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers, parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterTypeCustomModifiers);
 234
 235                         addGlobalMethod (mb);
 236                         return mb;
 237                 }
 238
 239                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 240                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 241                 }
 242
 243                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 244                         if (name == null)
 245                                 throw new ArgumentNullException ("name");
 246                         if ((attributes & MethodAttributes.Static) == 0)
 247                                 throw new ArgumentException ("global methods must be static");
 248                         if (global_type_created != null)
 249                                 throw new InvalidOperationException ("global methods already created");
 250                         CreateGlobalType ();
 251                         MethodBuilder mb = global_type.DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 252
 253                         addGlobalMethod (mb);
 254                         return mb;
 255                 }
 256
 257                 public TypeBuilder DefineType (string name) {
 258                         return DefineType (name, 0);
 259                 }
 260
 261                 public TypeBuilder DefineType (string name, TypeAttributes attr) {
 262                         if ((attr & TypeAttributes.Interface) != 0)
 263                                 return DefineType (name, attr, null, null);
 264                         return DefineType (name, attr, typeof(object), null);
 265                 }
 266
 267                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent) {
 268                         return DefineType (name, attr, parent, null);
 269                 }
 270
 271                 private void AddType (TypeBuilder tb)
 272                 {
 273                         if (types != null) {
 274                                 if (types.Length == num_types) {
 275                                         TypeBuilder[] new_types = new TypeBuilder [types.Length * 2];
 276                                         System.Array.Copy (types, new_types, num_types);
 277                                         types = new_types;
 278                                 }
 279                         } else {
 280                                 types = new TypeBuilder [1];
 281                         }
 282                         types [num_types] = tb;
 283                         num_types ++;
 284                 }
 285
 286                 private TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packingSize, int typesize) {
 287                         if (name == null)
 288                                 throw new ArgumentNullException ("fullname");
 289                         TypeIdentifier ident = TypeIdentifiers.FromInternal (name);
 290                         if (name_cache.ContainsKey (ident))
 291                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 292                         TypeBuilder res = new TypeBuilder (this, name, attr, parent, interfaces, packingSize, typesize, null);
 293                         AddType (res);
 294
 295                         name_cache.Add (ident, res);
 296
 297                         return res;
 298                 }
 299
 300                 internal void RegisterTypeName (TypeBuilder tb, TypeName name)
 301                 {
 302                         name_cache.Add (name, tb);
 303                 }
 304
 305                 internal TypeBuilder GetRegisteredType (TypeName name)
 306                 {
 307                         TypeBuilder result = null;
 308                         name_cache.TryGetValue (name, out result);
 309                         return result;
 310                 }
 311
 312                 [ComVisible (true)]
 313                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 314                         return DefineType (name, attr, parent, interfaces, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 315                 }
 316
 317                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, int typesize) {
 318                         return DefineType (name, attr, parent, null, PackingSize.Unspecified, typesize);
 319                 }
 320
 321                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 322                         return DefineType (name, attr, parent, null, packsize, TypeBuilder.UnspecifiedTypeSize);
 323                 }
 324
 325                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packingSize, int typesize) {
 326                         return DefineType (name, attr, parent, null, packingSize, typesize);
 327                 }
 328
 329                 public MethodInfo GetArrayMethod( Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 330                         return new MonoArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes);
 331                 }
 332
 333                 public EnumBuilder DefineEnum( string name, TypeAttributes visibility, Type underlyingType) {
 334                         TypeIdentifier ident = TypeIdentifiers.FromInternal (name);
 335                         if (name_cache.ContainsKey (ident))
 336                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 337
 338                         EnumBuilder eb = new EnumBuilder (this, name, visibility, underlyingType);
 339                         TypeBuilder res = eb.GetTypeBuilder ();
 340                         AddType (res);
 341                         name_cache.Add (ident, res);
 342                         return eb;
 343                 }
 344
 345                 [ComVisible (true)]
 346                 public override Type GetType( string className) {
 347                         return GetType (className, false, false);
 348                 }
 349
 350                 [ComVisible (true)]
 351                 public override Type GetType( string className, bool ignoreCase) {
 352                         return GetType (className, false, ignoreCase);
 353                 }
 354
 355                 private TypeBuilder search_in_array (TypeBuilder[] arr, int validElementsInArray, TypeName className) {
 356                         int i;
 357                         for (i = 0; i < validElementsInArray; ++i) {
 358                                 if (String.Compare (className.DisplayName, arr [i].FullName, true, CultureInfo.InvariantCulture) == 0) {
 359                                         return arr [i];
 360                                 }
 361                         }
 362                         return null;
 363                 }
 364
 365                 private TypeBuilder search_nested_in_array (TypeBuilder[] arr, int validElementsInArray, TypeName className) {
 366                         int i;
 367                         for (i = 0; i < validElementsInArray; ++i) {
 368                                 if (String.Compare (className.DisplayName, arr [i].Name, true, CultureInfo.InvariantCulture) == 0)
 369                                         return arr [i];
 370                         }
 371                         return null;
 372                 }
 373
 374                 private TypeBuilder GetMaybeNested (TypeBuilder t, IEnumerable<TypeName> nested) {
 375                         TypeBuilder result = t;
 376
 377                         foreach (TypeName pname in nested) {
 378                                 if (result.subtypes == null)
 379                                         return null;
 380                                 result = search_nested_in_array(result.subtypes, result.subtypes.Length, pname);
 381                                 if (result == null)
 382                                         return null;
 383                         }
 384                         return result;
 385                 }
 386
 387                 [ComVisible (true)]
 388                 public override Type GetType (string className, bool throwOnError, bool ignoreCase)
 389                 {
 390                         if (className == null)
 391                                 throw new ArgumentNullException ("className");
 392                         if (className.Length == 0)
 393                                 throw new ArgumentException ("className");
 394
 395                         TypeBuilder result = null;
 396
 397                         if (types == null && throwOnError)
 398                                 throw new TypeLoadException (className);
 399
 400                         TypeSpec ts = TypeSpec.Parse (className);
 401
 402                         if (!ignoreCase) {
 403                                 var displayNestedName = ts.TypeNameWithoutModifiers();
 404                                 name_cache.TryGetValue (displayNestedName, out result);
 405                         } else {
 406                                 if (types != null)
 407                                         result = search_in_array (types, num_types,  ts.Name);
 408                                 if (!ts.IsNested && result != null) {
 409                                         result = GetMaybeNested (result, ts.Nested);
 410                                 }
 411                         }
 412                         if ((result == null) && throwOnError)
 413                                 throw new TypeLoadException (className);
 414                         if (result != null && (ts.HasModifiers || ts.IsByRef)) {
 415                                 Type mt = result;
 416                                 if (result is TypeBuilder) {
 417                                         var tb = result as TypeBuilder;
 418                                         if (tb.is_created)
 419                                                 mt = tb.CreateType ();
 420                                 }
 421                                 foreach (var mod in ts.Modifiers) {
 422                                         if (mod is PointerSpec)
 423                                                 mt = mt.MakePointerType ();
 424                                         else if (mod is ArraySpec) {
 425                                                 var spec = mod as ArraySpec;
 426                                                 if (spec.IsBound)
 427                                                         return null;
 428                                                 if (spec.Rank == 1)
 429                                                         mt = mt.MakeArrayType ();
 430                                                 else
 431                                                         mt = mt.MakeArrayType (spec.Rank);
 432                                         }
 433                                 }
 434                                 if (ts.IsByRef)
 435                                         mt = mt.MakeByRefType ();
 436                                 result = mt as TypeBuilder;
 437                                 if (result == null)
 438                                         return mt;
 439                         }
 440                         if (result != null && result.is_created)
 441                                 return result.CreateType ();
 442                         else
 443                                 return result;
 444                 }
 445
 446                 internal int get_next_table_index (object obj, int table, bool inc) {
 447                         if (table_indexes == null) {
 448                                 table_indexes = new int [64];
 449                                 for (int i=0; i < 64; ++i)
 450                                         table_indexes [i] = 1;
 451                                 /* allow room for .<Module> in TypeDef table */
 452                                 table_indexes [0x02] = 2;
 453                         }
 454                         // Console.WriteLine ("getindex for table "+table.ToString()+" got "+table_indexes [table].ToString());
 455                         if (inc)
 456                                 return table_indexes [table]++;
 457                         return table_indexes [table];
 458                 }
 459
 460                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 461                         if (cattrs != null) {
 462                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 463                                 cattrs.CopyTo (new_array, 0);
 464                                 new_array [cattrs.Length] = customBuilder;
 465                                 cattrs = new_array;
 466                         } else {
 467                                 cattrs = new CustomAttributeBuilder [1];
 468                                 cattrs [0] = customBuilder;
 469                         }
 470                 }
 471
 472                 [ComVisible (true)]
 473                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 474                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 475                 }
 476
 477                 public ISymbolWriter GetSymWriter () {
 478                         return symbolWriter;
 479                 }
 480
 481                 public ISymbolDocumentWriter DefineDocument (string url, Guid language, Guid languageVendor, Guid documentType)
 482                 {
 483                         if (symbolWriter != null)
 484                                 return symbolWriter.DefineDocument (url, language, languageVendor, documentType);
 485                         else
 486                                 return null;
 487                 }
 488
 489                 public override Type [] GetTypes ()
 490                 {
 491                         if (types == null)
 492                                 return Type.EmptyTypes;
 493
 494                         int n = num_types;
 495                         Type [] copy = new Type [n];
 496                         Array.Copy (types, copy, n);
 497
 498                         // MS replaces the typebuilders with their created types
 499                         for (int i = 0; i < copy.Length; ++i)
 500                                 if (types [i].is_created)
 501                                         copy [i] = types [i].CreateType ();
 502
 503                         return copy;
 504                 }
 505
 506                 public IResourceWriter DefineResource (string name, string description, ResourceAttributes attribute)
 507                 {
 508                         if (name == null)
 509                                 throw new ArgumentNullException ("name");
 510                         if (name == String.Empty)
 511                                 throw new ArgumentException ("name cannot be empty");
 512                         if (transient)
 513                                 throw new InvalidOperationException ("The module is transient");
 514                         if (!assemblyb.IsSave)
 515                                 throw new InvalidOperationException ("The assembly is transient");
 516                         ResourceWriter writer = new ResourceWriter (new MemoryStream ());
 517                         if (resource_writers == null)
 518                                 resource_writers = new Hashtable ();
 519                         resource_writers [name] = writer;
 520
 521                         // The data is filled out later
 522                         if (resources != null) {
 523                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 524                                 System.Array.Copy(resources, new_r, resources.Length);
 525                                 resources = new_r;
 526                         } else {
 527                                 resources = new MonoResource [1];
 528                         }
 529                         int p = resources.Length - 1;
 530                         resources [p].name = name;
 531                         resources [p].attrs = attribute;
 532
 533                         return writer;
 534                 }
 535
 536                 public IResourceWriter DefineResource (string name, string description)
 537                 {
 538                         return DefineResource (name, description, ResourceAttributes.Public);
 539                 }
 540
 541                 [MonoTODO]
 542                 public void DefineUnmanagedResource (byte[] resource)
 543                 {
 544                         if (resource == null)
 545                                 throw new ArgumentNullException ("resource");
 546
 547                         throw new NotImplementedException ();
 548                 }
 549
 550                 [MonoTODO]
 551                 public void DefineUnmanagedResource (string resourceFileName)
 552                 {
 553                         if (resourceFileName == null)
 554                                 throw new ArgumentNullException ("resourceFileName");
 555                         if (resourceFileName == String.Empty)
 556                                 throw new ArgumentException ("resourceFileName");
 557                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 558                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exist or is a directory.");
 559
 560                         throw new NotImplementedException ();
 561                 }
 562
 563                 public void DefineManifestResource (string name, Stream stream, ResourceAttributes attribute) {
 564                         if (name == null)
 565                                 throw new ArgumentNullException ("name");
 566                         if (name == String.Empty)
 567                                 throw new ArgumentException ("name cannot be empty");
 568                         if (stream == null)
 569                                 throw new ArgumentNullException ("stream");
 570                         if (transient)
 571                                 throw new InvalidOperationException ("The module is transient");
 572                         if (!assemblyb.IsSave)
 573                                 throw new InvalidOperationException ("The assembly is transient");
 574
 575                         if (resources != null) {
 576                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 577                                 System.Array.Copy(resources, new_r, resources.Length);
 578                                 resources = new_r;
 579                         } else {
 580                                 resources = new MonoResource [1];
 581                         }
 582                         int p = resources.Length - 1;
 583                         resources [p].name = name;
 584                         resources [p].attrs = attribute;
 585                         resources [p].stream = stream;
 586                 }
 587
 588                 [MonoTODO]
 589                 public void SetSymCustomAttribute (string name, byte[] data)
 590                 {
 591                         throw new NotImplementedException ();
 592                 }
 593
 594                 [MonoTODO]
 595                 public void SetUserEntryPoint (MethodInfo entryPoint)
 596                 {
 597                         if (entryPoint == null)
 598                                 throw new ArgumentNullException ("entryPoint");
 599                         if (entryPoint.DeclaringType.Module != this)
 600                                 throw new InvalidOperationException ("entryPoint is not contained in this module");
 601                         throw new NotImplementedException ();
 602                 }
 603
 604                 public MethodToken GetMethodToken (MethodInfo method)
 605                 {
 606                         if (method == null)
 607                                 throw new ArgumentNullException ("method");
 608
 609                         return new MethodToken (GetToken (method));
 610                 }
 611
 612                 public MethodToken GetMethodToken (MethodInfo method, IEnumerable<Type> optionalParameterTypes)
 613                 {
 614                         if (method == null)
 615                                 throw new ArgumentNullException ("method");
 616
 617                         return new MethodToken (GetToken (method, optionalParameterTypes));
 618                 }
 619
 620                 public MethodToken GetArrayMethodToken (Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes)
 621                 {
 622                         return GetMethodToken (GetArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes));
 623                 }
 624
 625                 [ComVisible (true)]
 626                 public MethodToken GetConstructorToken (ConstructorInfo con)
 627                 {
 628                         if (con == null)
 629                                 throw new ArgumentNullException ("con");
 630
 631                         return new MethodToken (GetToken (con));
 632                 }
 633
 634                 public MethodToken GetConstructorToken (ConstructorInfo constructor, IEnumerable<Type> optionalParameterTypes)
 635                 {
 636                         if (constructor == null)
 637                                 throw new ArgumentNullException ("constructor");
 638
 639                         return new MethodToken (GetToken (constructor, optionalParameterTypes));
 640                 }
 641
 642                 public FieldToken GetFieldToken (FieldInfo field)
 643                 {
 644                         if (field == null)
 645                                 throw new ArgumentNullException ("field");
 646
 647                         return new FieldToken (GetToken (field));
 648                 }
 649
 650                 [MonoTODO]
 651                 public SignatureToken GetSignatureToken (byte[] sigBytes, int sigLength)
 652                 {
 653                         throw new NotImplementedException ();
 654                 }
 655
 656                 public SignatureToken GetSignatureToken (SignatureHelper sigHelper)
 657                 {
 658                         if (sigHelper == null)
 659                                 throw new ArgumentNullException ("sigHelper");
 660                         return new SignatureToken (GetToken (sigHelper));
 661                 }
 662
 663                 public StringToken GetStringConstant (string str)
 664                 {
 665                         if (str == null)
 666                                 throw new ArgumentNullException ("str");
 667                         return new StringToken (GetToken (str));
 668                 }
 669
 670                 public TypeToken GetTypeToken (Type type)
 671                 {
 672                         if (type == null)
 673                                 throw new ArgumentNullException ("type");
 674                         if (type.IsByRef)
 675                                 throw new ArgumentException ("type can't be a byref type", "type");
 676                         if (!IsTransient () && (type.Module is ModuleBuilder) && ((ModuleBuilder)type.Module).IsTransient ())
 677                                 throw new InvalidOperationException ("a non-transient module can't reference a transient module");
 678                         return new TypeToken (GetToken (type));
 679                 }
 680
 681                 public TypeToken GetTypeToken (string name)
 682                 {
 683                         return GetTypeToken (GetType (name));
 684                 }
 685
 686                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 687                 private static extern int getUSIndex (ModuleBuilder mb, string str);
 688
 689                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 690                 private static extern int getToken (ModuleBuilder mb, object obj, bool create_open_instance);
 691
 692                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 693                 private static extern int getMethodToken (ModuleBuilder mb, MethodBase method,
 694                                                           Type[] opt_param_types);
 695
 696                 internal int GetToken (string str)
 697                 {
 698                         int result;
 699                         if (!us_string_cache.TryGetValue (str, out result)) {
 700                                 result = getUSIndex (this, str);
 701                                 us_string_cache [str] = result;
 702                         }
 703
 704                         return result;
 705                 }
 706
 707                 static int typeref_tokengen =  0x01ffffff;
 708                 static int typedef_tokengen =  0x02ffffff;
 709                 static int typespec_tokengen =  0x1bffffff;
 710                 static int memberref_tokengen =  0x0affffff;
 711                 static int methoddef_tokengen =  0x06ffffff;
 712                 Dictionary<MemberInfo, int> inst_tokens, inst_tokens_open;
 713
 714                 //
 715                 // Assign a pseudo token to the various TypeBuilderInst objects, so the runtime
 716                 // doesn't have to deal with them.
 717                 // For Save assemblies, the tokens will be fixed up later during Save ().
 718                 // For Run assemblies, the tokens will not be fixed up, so the runtime will
 719                 // still encounter these objects, it will resolve them by calling their
 720                 // RuntimeResolve () methods.
 721                 //
 722                 int GetPseudoToken (MemberInfo member, bool create_open_instance)
 723                 {
 724                         int token;
 725                         var dict = create_open_instance ? inst_tokens_open : inst_tokens;
 726                         if (dict == null) {
 727                                 dict = new Dictionary<MemberInfo, int> (ReferenceEqualityComparer<MemberInfo>.Instance);
 728                                 if (create_open_instance)
 729                                         inst_tokens_open = dict;
 730                                 else
 731                                         inst_tokens = dict;
 732                         } else if (dict.TryGetValue (member, out token)) {
 733                                 return token;
 734                         }
 735
 736                         // Count backwards to avoid collisions with the tokens
 737                         // allocated by the runtime
 738                         if (member is TypeBuilderInstantiation || member is SymbolType)
 739                                 token = typespec_tokengen --;
 740                         else if (member is FieldOnTypeBuilderInst)
 741                                 token = memberref_tokengen --;
 742                         else if (member is ConstructorOnTypeBuilderInst)
 743                                 token = memberref_tokengen --;
 744                         else if (member is MethodOnTypeBuilderInst)
 745                                 token = memberref_tokengen --;
 746                         else if (member is FieldBuilder)
 747                                 token = memberref_tokengen --;
 748                         else if (member is TypeBuilder) {
 749                                 if (create_open_instance && (member as TypeBuilder).ContainsGenericParameters)
 750                                         token = typespec_tokengen --;
 751                                 else if (member.Module == this)
 752                                         token = typedef_tokengen --;
 753                                 else
 754                                         token = typeref_tokengen --;
 755                         } else if (member is ConstructorBuilder) {
 756                                 if (member.Module == this && !(member as ConstructorBuilder).TypeBuilder.ContainsGenericParameters)
 757                                         token = methoddef_tokengen --;
 758                                 else
 759                                         token = memberref_tokengen --;
 760                         } else if (member is MethodBuilder) {
 761                                 var mb = member as MethodBuilder;
 762                                 if (member.Module == this && !mb.TypeBuilder.ContainsGenericParameters && !mb.IsGenericMethodDefinition)
 763                                         token = methoddef_tokengen --;
 764                                 else
 765                                         token = memberref_tokengen --;
 766                         } else if (member is GenericTypeParameterBuilder) {
 767                                 token = typespec_tokengen --;
 768                         } else
 769                                 throw new NotImplementedException ();
 770
 771                         dict [member] = token;
 772                         RegisterToken (member, token);
 773                         return token;
 774                 }
 775
 776                 internal int GetToken (MemberInfo member) {
 777                         if (member is ConstructorBuilder || member is MethodBuilder)
 778                                 return GetPseudoToken (member, false);
 779                         return getToken (this, member, true);
 780                 }
 781
 782                 internal int GetToken (MemberInfo member, bool create_open_instance) {
 783                         if (member is TypeBuilderInstantiation || member is FieldOnTypeBuilderInst || member is ConstructorOnTypeBuilderInst || member is MethodOnTypeBuilderInst || member is SymbolType || member is FieldBuilder || member is TypeBuilder || member is ConstructorBuilder || member is MethodBuilder || member is GenericTypeParameterBuilder)
 784                                 return GetPseudoToken (member, create_open_instance);
 785                         return getToken (this, member, create_open_instance);
 786                 }
 787
 788                 internal int GetToken (MethodBase method, IEnumerable<Type> opt_param_types) {
 789                         if (method is ConstructorBuilder || method is MethodBuilder)
 790                                 return GetPseudoToken (method, false);
 791
 792                         if (opt_param_types == null)
 793                                 return getToken (this, method, true);
 794
 795                         var optParamTypes = new List<Type> (opt_param_types);
 796                         return  getMethodToken (this, method, optParamTypes.ToArray ());
 797                 }
 798
 799                 internal int GetToken (MethodBase method, Type[] opt_param_types) {
 800                         if (method is ConstructorBuilder || method is MethodBuilder)
 801                                 return GetPseudoToken (method, false);
 802                         return getMethodToken (this, method, opt_param_types);
 803                 }
 804
 805                 internal int GetToken (SignatureHelper helper) {
 806                         return getToken (this, helper, true);
 807                 }
 808
 809                 /*
 810                  * Register the token->obj mapping with the runtime so the Module.Resolve...
 811                  * methods will work for obj.
 812                  */
 813                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 814                 internal extern void RegisterToken (object obj, int token);
 815
 816                 /*
 817                  * Returns MemberInfo registered with the given token.
 818                  */
 819                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 820                 internal extern object GetRegisteredToken (int token);
 821
 822                 internal TokenGenerator GetTokenGenerator () {
 823                         if (token_gen == null)
 824                                 token_gen = new ModuleBuilderTokenGenerator (this);
 825                         return token_gen;
 826                 }
 827
 828                 // Called from the runtime to return the corresponding finished reflection object
 829                 internal static object RuntimeResolve (object obj) {
 830                         if (obj is MethodBuilder)
 831                                 return (obj as MethodBuilder).RuntimeResolve ();
 832                         if (obj is ConstructorBuilder)
 833                                 return (obj as ConstructorBuilder).RuntimeResolve ();
 834                         if (obj is FieldBuilder)
 835                                 return (obj as FieldBuilder).RuntimeResolve ();
 836                         if (obj is GenericTypeParameterBuilder)
 837                                 return (obj as GenericTypeParameterBuilder).RuntimeResolve ();
 838                         if (obj is FieldOnTypeBuilderInst)
 839                                 return (obj as FieldOnTypeBuilderInst).RuntimeResolve ();
 840                         if (obj is MethodOnTypeBuilderInst)
 841                                 return (obj as MethodOnTypeBuilderInst).RuntimeResolve ();
 842                         if (obj is ConstructorOnTypeBuilderInst)
 843                                 return (obj as ConstructorOnTypeBuilderInst).RuntimeResolve ();
 844                         if (obj is Type)
 845                                 return (obj as Type).RuntimeResolve ();
 846                         throw new NotImplementedException (obj.GetType ().FullName);
 847                 }
 848
 849                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 850                 private static extern void build_metadata (ModuleBuilder mb);
 851
 852                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 853                 private extern void WriteToFile (IntPtr handle);
 854
 855                 void FixupTokens (Dictionary<int, int> token_map, Dictionary<int, MemberInfo> member_map, Dictionary<MemberInfo, int> inst_tokens,
 856                                                   bool open) {
 857                         foreach (var v in inst_tokens) {
 858                                 var member = v.Key;
 859                                 var old_token = v.Value;
 860                                 MemberInfo finished = null;
 861
 862                                 // Construct the concrete reflection object corresponding to the
 863                                 // TypeBuilderInst object, and request a token for it instead.
 864                                 if (member is TypeBuilderInstantiation || member is SymbolType) {
 865                                         finished = (member as Type).RuntimeResolve ();
 866                                 } else if (member is FieldOnTypeBuilderInst) {
 867                                         finished = (member as FieldOnTypeBuilderInst).RuntimeResolve ();
 868                                 } else if (member is ConstructorOnTypeBuilderInst) {
 869                                         finished = (member as ConstructorOnTypeBuilderInst).RuntimeResolve ();
 870                                 } else if (member is MethodOnTypeBuilderInst) {
 871                                         finished = (member as MethodOnTypeBuilderInst).RuntimeResolve ();
 872                                 } else if (member is FieldBuilder) {
 873                                         finished = (member as FieldBuilder).RuntimeResolve ();
 874                                 } else if (member is TypeBuilder) {
 875                                         finished = (member as TypeBuilder).RuntimeResolve ();
 876                                 } else if (member is ConstructorBuilder) {
 877                                         finished = (member as ConstructorBuilder).RuntimeResolve ();
 878                                 } else if (member is MethodBuilder) {
 879                                         finished = (member as MethodBuilder).RuntimeResolve ();
 880                                 } else if (member is GenericTypeParameterBuilder) {
 881                                         finished = (member as GenericTypeParameterBuilder).RuntimeResolve ();
 882                                 } else {
 883                                         throw new NotImplementedException ();
 884                                 }
 885
 886                                 int new_token = GetToken (finished, open);
 887                                 token_map [old_token] = new_token;
 888                                 member_map [old_token] = finished;
 889                                 // Replace the token mapping in the runtime so it points to the new object
 890                                 RegisterToken (finished, old_token);
 891                         }
 892                 }
 893
 894                 //
 895                 // Fixup the pseudo tokens assigned to the various SRE objects
 896                 //
 897                 void FixupTokens ()
 898                 {
 899                         var token_map = new Dictionary<int, int> ();
 900                         var member_map = new Dictionary<int, MemberInfo> ();
 901                         if (inst_tokens != null)
 902                                 FixupTokens (token_map, member_map, inst_tokens, false);
 903                         if (inst_tokens_open != null)
 904                                 FixupTokens (token_map, member_map, inst_tokens_open, true);
 905
 906                         // Replace the tokens in the IL stream
 907                         if (types != null) {
 908                                 for (int i = 0; i < num_types; ++i)
 909                                         types [i].FixupTokens (token_map, member_map);
 910                         }
 911                 }
 912
 913                 internal void Save ()
 914                 {
 915                         if (transient && !is_main)
 916                                 return;
 917
 918                         if (types != null) {
 919                                 for (int i = 0; i < num_types; ++i)
 920                                         if (!types [i].is_created)
 921                                                 throw new NotSupportedException ("Type '" + types [i].FullName + "' was not completed.");
 922                         }
 923
 924                         FixupTokens ();
 925
 926                         if ((global_type != null) && (global_type_created == null))
 927                                 global_type_created = global_type.CreateType ();
 928
 929                         if (resources != null) {
 930                                 for (int i = 0; i < resources.Length; ++i) {
 931                                         IResourceWriter rwriter;
 932                                         if (resource_writers != null && (rwriter = resource_writers [resources [i].name] as IResourceWriter) != null) {
 933                                                 ResourceWriter writer = (ResourceWriter)rwriter;
 934                                                 writer.Generate ();
 935                                                 MemoryStream mstream = (MemoryStream)writer._output;
 936                                                 resources [i].data = new byte [mstream.Length];
 937                                                 mstream.Seek (0, SeekOrigin.Begin);
 938                                                 mstream.Read (resources [i].data, 0, (int)mstream.Length);
 939                                                 continue;
 940                                         }
 941                                         Stream stream = resources [i].stream;
 942
 943                                         // According to MSDN docs, the stream is read during assembly save, not earlier
 944                                         if (stream != null) {
 945                                                 try {
 946                                                         long len = stream.Length;
 947                                                         resources [i].data = new byte [len];
 948                                                         stream.Seek (0, SeekOrigin.Begin);
 949                                                         stream.Read (resources [i].data, 0, (int)len);
 950                                                 } catch {
 951                                                         /* do something */
 952                                                 }
 953                                         }
 954                                 }
 955                         }
 956
 957                         build_metadata (this);
 958
 959                         string fileName = fqname;
 960                         if (assemblyb.AssemblyDir != null)
 961                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 962
 963                         try {
 964                                 // We mmap the file, so unlink the previous version since it may be in use
 965                                 File.Delete (fileName);
 966                         } catch {
 967                                 // We can safely ignore
 968                         }
 969                         using (FileStream file = new FileStream (fileName, FileMode.Create, FileAccess.Write))
 970                                 WriteToFile (file.Handle);
 971
 972                         //
 973                         // The constant 0x80000000 is internal to Mono, it means `make executable'
 974                         //
 975                         File.SetAttributes (fileName, (FileAttributes) (unchecked ((int) 0x80000000)));
 976
 977                         if (types != null && symbolWriter != null) {
 978                                 for (int i = 0; i < num_types; ++i)
 979                                         types [i].GenerateDebugInfo (symbolWriter);
 980                                 symbolWriter.Close ();
 981                         }
 982                 }
 983
 984                 internal string FileName {
 985                         get {
 986                                 return fqname;
 987                         }
 988                 }
 989
 990                 internal bool IsMain {
 991                         set {
 992                                 is_main = value;
 993                         }
 994                 }
 995
 996                 internal void CreateGlobalType () {
 997                         if (global_type == null)
 998                                 global_type = new TypeBuilder (this, 0, 1);
 999                 }
1000
1001                 internal override Guid GetModuleVersionId ()
1002                 {
1003                         return new Guid (guid);
1004                 }
1005
1006                 // Used by mcs, the symbol writer, and mdb through reflection
1007                 internal static Guid Mono_GetGuid (ModuleBuilder mb)
1008                 {
1009                         return mb.GetModuleVersionId ();
1010                 }
1011
1012                 void _ModuleBuilder.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
1013                 {
1014                         throw new NotImplementedException ();
1015                 }
1016
1017                 void _ModuleBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
1018                 {
1019                         throw new NotImplementedException ();
1020                 }
1021
1022                 void _ModuleBuilder.GetTypeInfoCount (out uint pcTInfo)
1023                 {
1024                         throw new NotImplementedException ();
1025                 }
1026
1027                 void _ModuleBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
1028                 {
1029                         throw new NotImplementedException ();
1030                 }
1031
1032                 public override Assembly Assembly {
1033                         get { return assemblyb; }
1034                 }
1035
1036                 public override string Name {
1037                         get { return name; }
1038                 }
1039
1040                 public override string ScopeName {
1041                         get { return name; }
1042                 }
1043
1044                 public override Guid ModuleVersionId {
1045                         get {
1046                                 return GetModuleVersionId ();
1047                         }
1048                 }
1049
1050                 //XXX resource modules can't be defined with ModuleBuilder
1051                 public override bool IsResource ()
1052                 {
1053                         return false;
1054                 }
1055
1056                 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
1057                 {
1058                         if (global_type_created == null)
1059                                 return null;
1060                         if (types == null)
1061                                 return global_type_created.GetMethod (name);
1062                         return global_type_created.GetMethod (name, bindingAttr, binder, callConvention, types, modifiers);
1063                 }
1064
1065                 public override FieldInfo ResolveField (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
1066                         ResolveTokenError error;
1067
1068                         IntPtr handle = ResolveFieldToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
1069                         if (handle == IntPtr.Zero)
1070                                 throw resolve_token_exception (metadataToken, error, "Field");
1071                         else
1072                                 return FieldInfo.GetFieldFromHandle (new RuntimeFieldHandle (handle));
1073                 }
1074
1075                 public override MemberInfo ResolveMember (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
1076
1077                         ResolveTokenError error;
1078
1079                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
1080                         if (m == null)
1081                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
1082                         else
1083                                 return m;
1084                 }
1085
1086                 internal MemberInfo ResolveOrGetRegisteredToken (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments)
1087                 {
1088                         ResolveTokenError error;
1089                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
1090                         if (m != null)
1091                                 return m;
1092
1093                         m = GetRegisteredToken (metadataToken) as MemberInfo;
1094                         if (m == null)
1095                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
1096                         else
1097                                 return m;
1098                 }
1099
1100                 public override MethodBase ResolveMethod (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
1101                         ResolveTokenError error;
1102
1103                         IntPtr handle = ResolveMethodToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
1104                         if (handle == IntPtr.Zero)
1105                                 throw resolve_token_exception (metadataToken, error, "MethodBase");
1106                         else
1107                                 return MethodBase.GetMethodFromHandleNoGenericCheck (new RuntimeMethodHandle (handle));
1108                 }
1109
1110                 public override string ResolveString (int metadataToken) {
1111                         ResolveTokenError error;
1112
1113                         string s = ResolveStringToken (_impl, metadataToken, out error);
1114                         if (s == null)
1115                                 throw resolve_token_exception (metadataToken, error, "string");
1116                         else
1117                                 return s;
1118                 }
1119
1120                 public override byte[] ResolveSignature (int metadataToken) {
1121                         ResolveTokenError error;
1122
1123                     byte[] res = ResolveSignature (_impl, metadataToken, out error);
1124                         if (res == null)
1125                                 throw resolve_token_exception (metadataToken, error, "signature");
1126                         else
1127                                 return res;
1128                 }
1129
1130                 public override Type ResolveType (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
1131                         ResolveTokenError error;
1132
1133                         IntPtr handle = ResolveTypeToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
1134                         if (handle == IntPtr.Zero)
1135                                 throw resolve_token_exception (metadataToken, error, "Type");
1136                         else
1137                                 return Type.GetTypeFromHandle (new RuntimeTypeHandle (handle));
1138                 }
1139
1140                 public override bool Equals (object obj)
1141                 {
1142                         return base.Equals (obj);
1143                 }
1144
1145                 public override int GetHashCode ()
1146                 {
1147                         return base.GetHashCode ();
1148                 }
1149
1150                 public override bool IsDefined (Type attributeType, bool inherit)
1151                 {
1152                         return base.IsDefined (attributeType, inherit);
1153                 }
1154
1155                 public override object[] GetCustomAttributes (bool inherit)
1156                 {
1157                         return base.GetCustomAttributes (inherit);
1158                 }
1159
1160                 public override object[] GetCustomAttributes (Type attributeType, bool inherit)
1161                 {
1162                         return base.GetCustomAttributes (attributeType, inherit);
1163                 }
1164
1165                 public override FieldInfo GetField (string name, BindingFlags bindingAttr)
1166                 {
1167                         return base.GetField (name, bindingAttr);
1168                 }
1169
1170                 public override FieldInfo[] GetFields (BindingFlags bindingFlags)
1171                 {
1172                         return base.GetFields (bindingFlags);
1173                 }
1174
1175                 public override MethodInfo[] GetMethods (BindingFlags bindingFlags)
1176                 {
1177                         return base.GetMethods (bindingFlags);
1178                 }
1179
1180                 public override int MetadataToken {
1181                         get {
1182                                 return base.MetadataToken;
1183                         }
1184                 }
1185         }
1186
1187         internal class ModuleBuilderTokenGenerator : TokenGenerator {
1188
1189                 private ModuleBuilder mb;
1190
1191                 public ModuleBuilderTokenGenerator (ModuleBuilder mb) {
1192                         this.mb = mb;
1193                 }
1194
1195                 public int GetToken (string str) {
1196                         return mb.GetToken (str);
1197                 }
1198
1199                 public int GetToken (MemberInfo member, bool create_open_instance) {
1200                         return mb.GetToken (member, create_open_instance);
1201                 }
1202
1203                 public int GetToken (MethodBase method, Type[] opt_param_types) {
1204                         return mb.GetToken (method, opt_param_types);
1205                 }
1206
1207                 public int GetToken (SignatureHelper helper) {
1208                         return mb.GetToken (helper);
1209                 }
1210         }
1211 }
1212
1213 #endif