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

   1
   2 //
   3 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining
   6 // a copy of this software and associated documentation files (the
   7 // "Software"), to deal in the Software without restriction, including
   8 // without limitation the rights to use, copy, modify, merge, publish,
   9 // distribute, sublicense, and/or sell copies of the Software, and to
  10 // permit persons to whom the Software is furnished to do so, subject to
  11 // the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be
  14 // included in all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 //
  24
  25 //
  26 // System.Reflection.Emit/ModuleBuilder.cs
  27 //
  28 // Author:
  29 //   Paolo Molaro (lupus@ximian.com)
  30 //
  31 // (C) 2001 Ximian, Inc.  http://www.ximian.com
  32 //
  33
  34 using System;
  35 using System.Reflection;
  36 using System.Collections;
  37 using System.Runtime.CompilerServices;
  38 using System.Runtime.InteropServices;
  39 using System.Diagnostics.SymbolStore;
  40 using System.IO;
  41 using System.Resources;
  42 using System.Globalization;
  43
  44 namespace System.Reflection.Emit {
  45 #if NET_2_0
  46         [ComVisible (true)]
  47         [ComDefaultInterface (typeof (_ModuleBuilder))]
  48 #endif
  49         [ClassInterface (ClassInterfaceType.None)]
  50         public class ModuleBuilder : Module, _ModuleBuilder {
  51                 #region Sync with object-internals.h
  52                 private IntPtr dynamic_image;
  53                 private int num_types;
  54                 private TypeBuilder[] types;
  55                 private CustomAttributeBuilder[] cattrs;
  56                 private byte[] guid;
  57                 private int table_idx;
  58                 internal AssemblyBuilder assemblyb;
  59                 private MethodBuilder[] global_methods;
  60                 private FieldBuilder[] global_fields;
  61                 bool is_main;
  62                 private MonoResource[] resources;
  63                 #endregion
  64                 private TypeBuilder global_type;
  65                 private Type global_type_created;
  66                 Hashtable name_cache;
  67                 Hashtable us_string_cache = new Hashtable ();
  68                 private int[] table_indexes;
  69                 bool transient;
  70                 ModuleBuilderTokenGenerator token_gen;
  71                 Hashtable resource_writers;
  72                 ISymbolWriter symbolWriter;
  73
  74                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  75                 private static extern void basic_init (ModuleBuilder ab);
  76
  77                 internal ModuleBuilder (AssemblyBuilder assb, string name, string fullyqname, bool emitSymbolInfo, bool transient) {
  78                         this.name = this.scopename = name;
  79                         this.fqname = fullyqname;
  80                         this.assembly = this.assemblyb = assb;
  81                         this.transient = transient;
  82                         // to keep mcs fast we do not want CryptoConfig wo be involved to create the RNG
  83                         guid = Guid.FastNewGuidArray ();
  84                         // guid = Guid.NewGuid().ToByteArray ();
  85                         table_idx = get_next_table_index (this, 0x00, true);
  86                         name_cache = new Hashtable ();
  87
  88                         basic_init (this);
  89
  90                         CreateGlobalType ();
  91
  92                         if (emitSymbolInfo) {
  93                                 Assembly asm = Assembly.LoadWithPartialName ("Mono.CompilerServices.SymbolWriter");
  94                                 Type t = asm.GetType ("Mono.CompilerServices.SymbolWriter.SymbolWriterImpl");
  95                                 if (t != null) {
  96                                         symbolWriter = (ISymbolWriter) Activator.CreateInstance (t, new object[] { this });
  97                                         string fileName = fqname;
  98                                         if (assemblyb.AssemblyDir != null)
  99                                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 100                                         symbolWriter.Initialize (IntPtr.Zero, fileName, true);
 101                                 }
 102                         }
 103                 }
 104
 105                 public override string FullyQualifiedName {get { return fqname;}}
 106
 107                 public bool IsTransient () {
 108                         return transient;
 109                 }
 110
 111                 public void CreateGlobalFunctions ()
 112                 {
 113                         if (global_type_created != null)
 114                                 throw new InvalidOperationException ("global methods already created");
 115                         if (global_type != null)
 116                                 global_type_created = global_type.CreateType ();
 117                 }
 118
 119                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 120                         if (data == null)
 121                                 throw new ArgumentNullException ("data");
 122
 123                         FieldBuilder fb = DefineUninitializedData (name, data.Length,
 124                                                                                                            attributes | FieldAttributes.HasFieldRVA);
 125                         fb.SetRVAData (data);
 126
 127                         return fb;
 128                 }
 129
 130                 public FieldBuilder DefineUninitializedData( string name, int size, FieldAttributes attributes) {
 131                         if (name == null)
 132                                 throw new ArgumentNullException ("name");
 133                         if (global_type_created != null)
 134                                 throw new InvalidOperationException ("global fields already created");
 135                         if (global_type == null)
 136                                 global_type = new TypeBuilder (this, 0);
 137
 138                         string typeName = "$ArrayType$" + size;
 139                         Type datablobtype = GetType (typeName, false, false);
 140                         if (datablobtype == null) {
 141                                 TypeBuilder tb = DefineType (typeName,
 142                                     TypeAttributes.Public|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 143                                         assemblyb.corlib_value_type, null, PackingSize.Size1, size);
 144                                 tb.CreateType ();
 145                                 datablobtype = tb;
 146                         }
 147                         FieldBuilder fb = global_type.DefineField (name, datablobtype, attributes|FieldAttributes.Static);
 148
 149                         if (global_fields != null) {
 150                                 FieldBuilder[] new_fields = new FieldBuilder [global_fields.Length+1];
 151                                 System.Array.Copy (global_fields, new_fields, global_fields.Length);
 152                                 new_fields [global_fields.Length] = fb;
 153                                 global_fields = new_fields;
 154                         } else {
 155                                 global_fields = new FieldBuilder [1];
 156                                 global_fields [0] = fb;
 157                         }
 158                         return fb;
 159                 }
 160
 161                 private void addGlobalMethod (MethodBuilder mb) {
 162                         if (global_methods != null) {
 163                                 MethodBuilder[] new_methods = new MethodBuilder [global_methods.Length+1];
 164                                 System.Array.Copy (global_methods, new_methods, global_methods.Length);
 165                                 new_methods [global_methods.Length] = mb;
 166                                 global_methods = new_methods;
 167                         } else {
 168                                 global_methods = new MethodBuilder [1];
 169                                 global_methods [0] = mb;
 170                         }
 171                 }
 172
 173                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes)
 174                 {
 175                         return DefineGlobalMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 176                 }
 177
 178                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 179                         return DefineGlobalMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 180                 }
 181
 182 #if NET_2_0 || BOOTSTRAP_NET_2_0
 183                 public
 184 #else
 185                 internal
 186 #endif
 187                 MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] requiredReturnTypeCustomModifiers, Type[] optionalReturnTypeCustomModifiers, Type[] parameterTypes, Type[][] requiredParameterTypeCustomModifiers, Type[][] optionalParameterTypeCustomModifiers)
 188                 {
 189                         if (name == null)
 190                                 throw new ArgumentNullException ("name");
 191                         if ((attributes & MethodAttributes.Static) == 0)
 192                                 throw new ArgumentException ("global methods must be static");
 193                         if (global_type_created != null)
 194                                 throw new InvalidOperationException ("global methods already created");
 195                         if (global_type == null)
 196                                 global_type = new TypeBuilder (this, 0);
 197                         MethodBuilder mb = global_type.DefineMethod (name, attributes, callingConvention, returnType, requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers, parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterTypeCustomModifiers);
 198
 199                         addGlobalMethod (mb);
 200                         return mb;
 201                 }
 202
 203                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 204                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 205                 }
 206
 207                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 208                         if (name == null)
 209                                 throw new ArgumentNullException ("name");
 210                         if ((attributes & MethodAttributes.Static) == 0)
 211                                 throw new ArgumentException ("global methods must be static");
 212                         if (global_type_created != null)
 213                                 throw new InvalidOperationException ("global methods already created");
 214                         if (global_type == null)
 215                                 global_type = new TypeBuilder (this, 0);
 216                         MethodBuilder mb = global_type.DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 217
 218                         addGlobalMethod (mb);
 219                         return mb;
 220                 }
 221
 222                 public TypeBuilder DefineType (string name) {
 223                         return DefineType (name, 0);
 224                 }
 225
 226                 public TypeBuilder DefineType (string name, TypeAttributes attr) {
 227                         if ((attr & TypeAttributes.Interface) != 0)
 228                                 return DefineType (name, attr, null, null);
 229                         return DefineType (name, attr, typeof(object), null);
 230                 }
 231
 232                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent) {
 233                         return DefineType (name, attr, parent, null);
 234                 }
 235
 236                 private void AddType (TypeBuilder tb)
 237                 {
 238                         if (types != null) {
 239                                 if (types.Length == num_types) {
 240                                         TypeBuilder[] new_types = new TypeBuilder [types.Length * 2];
 241                                         System.Array.Copy (types, new_types, num_types);
 242                                         types = new_types;
 243                                 }
 244                         } else {
 245                                 types = new TypeBuilder [1];
 246                         }
 247                         types [num_types] = tb;
 248                         num_types ++;
 249                 }
 250
 251                 private TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packsize, int typesize) {
 252                         if (name_cache.Contains (name))
 253                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 254
 255                         TypeBuilder res = new TypeBuilder (this, name, attr, parent, interfaces, packsize, typesize, null);
 256                         AddType (res);
 257                         name_cache.Add (name, res);
 258                         return res;
 259                 }
 260
 261                 internal void RegisterTypeName (TypeBuilder tb, string name) {
 262                         name_cache.Add (name, tb);
 263                 }
 264
 265 #if NET_2_0
 266                 [ComVisible (true)]
 267 #endif
 268                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 269                         return DefineType (name, attr, parent, interfaces, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 270                 }
 271
 272                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, int typesize) {
 273                         return DefineType (name, attr, parent, null, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 274                 }
 275
 276                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 277                         return DefineType (name, attr, parent, null, packsize, TypeBuilder.UnspecifiedTypeSize);
 278                 }
 279
 280                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packsize, int typesize) {
 281                         return DefineType (name, attr, parent, null, packsize, typesize);
 282                 }
 283
 284                 public MethodInfo GetArrayMethod( Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 285                         return new MonoArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes);
 286                 }
 287
 288                 public EnumBuilder DefineEnum( string name, TypeAttributes visibility, Type underlyingType) {
 289                         if (name_cache.Contains (name))
 290                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 291
 292                         EnumBuilder eb = new EnumBuilder (this, name, visibility, underlyingType);
 293                         TypeBuilder res = eb.GetTypeBuilder ();
 294                         AddType (res);
 295                         name_cache.Add (name, res);
 296                         return eb;
 297                 }
 298
 299 #if NET_2_0
 300                 [ComVisible (true)]
 301 #endif
 302                 public override Type GetType( string className) {
 303                         return GetType (className, false, false);
 304                 }
 305
 306 #if NET_2_0
 307                 [ComVisible (true)]
 308 #endif
 309                 public override Type GetType( string className, bool ignoreCase) {
 310                         return GetType (className, false, ignoreCase);
 311                 }
 312
 313                 private TypeBuilder search_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 314                         int i;
 315                         for (i = 0; i < validElementsInArray; ++i) {
 316                                 if (String.Compare (className, arr [i].FullName, true, CultureInfo.InvariantCulture) == 0) {
 317                                         return arr [i];
 318                                 }
 319                         }
 320                         return null;
 321                 }
 322
 323                 private TypeBuilder search_nested_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 324                         int i;
 325                         for (i = 0; i < validElementsInArray; ++i) {
 326                                 if (String.Compare (className, arr [i].Name, true, CultureInfo.InvariantCulture) == 0)
 327                                         return arr [i];
 328                         }
 329                         return null;
 330                 }
 331
 332                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 333                 private static extern Type create_modified_type (TypeBuilder tb, string modifiers);
 334
 335                 static readonly char [] type_modifiers = {'&', '[', '*'};
 336
 337                 private TypeBuilder GetMaybeNested (TypeBuilder t, string className) {
 338                         int subt;
 339                         string pname, rname;
 340
 341                         subt = className.IndexOf ('+');
 342                         if (subt < 0) {
 343                                 if (t.subtypes != null)
 344                                         return search_nested_in_array (t.subtypes, t.subtypes.Length, className);
 345                                 return null;
 346                         }
 347                         if (t.subtypes != null) {
 348                                 pname = className.Substring (0, subt);
 349                                 rname = className.Substring (subt + 1);
 350                                 TypeBuilder result = search_nested_in_array (t.subtypes, t.subtypes.Length, pname);
 351                                 if (result != null)
 352                                         return GetMaybeNested (result, rname);
 353                         }
 354                         return null;
 355                 }
 356
 357 #if NET_2_0
 358                 [ComVisible (true)]
 359 #endif
 360                 public override Type GetType (string className, bool throwOnError, bool ignoreCase) {
 361                         int subt;
 362                         string orig = className;
 363                         string modifiers;
 364                         TypeBuilder result = null;
 365
 366                         if (types == null && throwOnError)
 367                                 throw new TypeLoadException (className);
 368
 369                         subt = className.IndexOfAny (type_modifiers);
 370                         if (subt >= 0) {
 371                                 modifiers = className.Substring (subt);
 372                                 className = className.Substring (0, subt);
 373                         } else
 374                                 modifiers = null;
 375
 376                         if (!ignoreCase) {
 377                                 result =  name_cache [className] as TypeBuilder;
 378                         } else {
 379                                 subt = className.IndexOf ('+');
 380                                 if (subt < 0) {
 381                                         if (types != null)
 382                                                 result = search_in_array (types, num_types,  className);
 383                                 } else {
 384                                         string pname, rname;
 385                                         pname = className.Substring (0, subt);
 386                                         rname = className.Substring (subt + 1);
 387                                         result = search_in_array (types, num_types, pname);
 388                                         if (result != null)
 389                                                 result = GetMaybeNested (result, rname);
 390                                 }
 391                         }
 392                         if ((result == null) && throwOnError)
 393                                 throw new TypeLoadException (orig);
 394                         if (result != null && (modifiers != null))
 395                                 return create_modified_type (result, modifiers);
 396                         return result;
 397                 }
 398
 399                 internal int get_next_table_index (object obj, int table, bool inc) {
 400                         if (table_indexes == null) {
 401                                 table_indexes = new int [64];
 402                                 for (int i=0; i < 64; ++i)
 403                                         table_indexes [i] = 1;
 404                                 /* allow room for .<Module> in TypeDef table */
 405                                 table_indexes [0x02] = 2;
 406                         }
 407                         // Console.WriteLine ("getindex for table "+table.ToString()+" got "+table_indexes [table].ToString());
 408                         if (inc)
 409                                 return table_indexes [table]++;
 410                         return table_indexes [table];
 411                 }
 412
 413                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 414                         if (cattrs != null) {
 415                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 416                                 cattrs.CopyTo (new_array, 0);
 417                                 new_array [cattrs.Length] = customBuilder;
 418                                 cattrs = new_array;
 419                         } else {
 420                                 cattrs = new CustomAttributeBuilder [1];
 421                                 cattrs [0] = customBuilder;
 422                         }
 423                 }
 424
 425 #if NET_2_0
 426                 [ComVisible (true)]
 427 #endif
 428                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 429                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 430                 }
 431
 432                 public ISymbolWriter GetSymWriter () {
 433                         return symbolWriter;
 434                 }
 435
 436                 public ISymbolDocumentWriter DefineDocument (string url, Guid language, Guid languageVendor, Guid documentType)
 437                 {
 438                         if (symbolWriter != null)
 439                                 return symbolWriter.DefineDocument (url, language, languageVendor, documentType);
 440                         else
 441                                 return null;
 442                 }
 443
 444                 public override Type [] GetTypes ()
 445                 {
 446                         if (types == null)
 447                                 return new TypeBuilder [0];
 448
 449                         int n = num_types;
 450                         TypeBuilder [] copy = new TypeBuilder [n];
 451                         Array.Copy (types, copy, n);
 452
 453                         return copy;
 454                 }
 455
 456                 public IResourceWriter DefineResource (string name, string description, ResourceAttributes attribute)
 457                 {
 458                         if (name == null)
 459                                 throw new ArgumentNullException ("name");
 460                         if (name == String.Empty)
 461                                 throw new ArgumentException ("name cannot be empty");
 462                         if (transient)
 463                                 throw new InvalidOperationException ("The module is transient");
 464                         if (!assemblyb.IsSave)
 465                                 throw new InvalidOperationException ("The assembly is transient");
 466                         ResourceWriter writer = new ResourceWriter (new MemoryStream ());
 467                         if (resource_writers == null)
 468                                 resource_writers = new Hashtable ();
 469                         resource_writers [name] = writer;
 470
 471                         // The data is filled out later
 472                         if (resources != null) {
 473                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 474                                 System.Array.Copy(resources, new_r, resources.Length);
 475                                 resources = new_r;
 476                         } else {
 477                                 resources = new MonoResource [1];
 478                         }
 479                         int p = resources.Length - 1;
 480                         resources [p].name = name;
 481                         resources [p].attrs = attribute;
 482
 483                         return writer;
 484                 }
 485
 486                 public IResourceWriter DefineResource (string name, string description)
 487                 {
 488                         return DefineResource (name, description, ResourceAttributes.Public);
 489                 }
 490
 491                 [MonoTODO]
 492                 public void DefineUnmanagedResource (byte[] resource)
 493                 {
 494                         if (resource == null)
 495                                 throw new ArgumentNullException ("resource");
 496
 497                         throw new NotImplementedException ();
 498                 }
 499
 500                 [MonoTODO]
 501                 public void DefineUnmanagedResource (string resourceFileName)
 502                 {
 503                         if (resourceFileName == null)
 504                                 throw new ArgumentNullException ("resourceFileName");
 505                         if (resourceFileName == String.Empty)
 506                                 throw new ArgumentException ("resourceFileName");
 507                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 508                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exists or is a directory.");
 509
 510                         throw new NotImplementedException ();
 511                 }
 512
 513 #if NET_2_0
 514                 public void DefineManifestResource (string name, Stream stream, ResourceAttributes attribute) {
 515                         if (name == null)
 516                                 throw new ArgumentNullException ("name");
 517                         if (name == String.Empty)
 518                                 throw new ArgumentException ("name cannot be empty");
 519                         if (stream == null)
 520                                 throw new ArgumentNullException ("stream");
 521                         if (transient)
 522                                 throw new InvalidOperationException ("The module is transient");
 523                         if (!assemblyb.IsSave)
 524                                 throw new InvalidOperationException ("The assembly is transient");
 525
 526                         if (resources != null) {
 527                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 528                                 System.Array.Copy(resources, new_r, resources.Length);
 529                                 resources = new_r;
 530                         } else {
 531                                 resources = new MonoResource [1];
 532                         }
 533                         int p = resources.Length - 1;
 534                         resources [p].name = name;
 535                         resources [p].attrs = attribute;
 536                         resources [p].stream = stream;
 537                 }
 538 #endif
 539
 540                 [MonoTODO]
 541                 public void SetSymCustomAttribute (string name, byte[] data)
 542                 {
 543                         throw new NotImplementedException ();
 544                 }
 545
 546                 [MonoTODO]
 547                 public void SetUserEntryPoint (MethodInfo entryPoint)
 548                 {
 549                         if (entryPoint == null)
 550                                 throw new ArgumentNullException ("entryPoint");
 551                         if (entryPoint.DeclaringType.Module != this)
 552                                 throw new InvalidOperationException ("entryPoint is not contained in this module");
 553                         throw new NotImplementedException ();
 554                 }
 555
 556                 public MethodToken GetMethodToken (MethodInfo method)
 557                 {
 558                         if (method == null)
 559                                 throw new ArgumentNullException ("method");
 560                         if (method.DeclaringType.Module != this)
 561                                 throw new InvalidOperationException ("The method is not in this module");
 562                         return new MethodToken (GetToken (method));
 563                 }
 564
 565                 public MethodToken GetArrayMethodToken (Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes)
 566                 {
 567                         return GetMethodToken (GetArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes));
 568                 }
 569
 570 #if NET_2_0
 571                 [ComVisible (true)]
 572 #endif
 573                 public MethodToken GetConstructorToken (ConstructorInfo con)
 574                 {
 575                         if (con == null)
 576                                 throw new ArgumentNullException ("con");
 577                         return new MethodToken (GetToken (con));
 578                 }
 579
 580                 public FieldToken GetFieldToken (FieldInfo field)
 581                 {
 582                         if (field == null)
 583                                 throw new ArgumentNullException ("field");
 584                         if (field.DeclaringType.Module != this)
 585                                 throw new InvalidOperationException ("The method is not in this module");
 586                         return new FieldToken (GetToken (field));
 587                 }
 588
 589                 [MonoTODO]
 590                 public SignatureToken GetSignatureToken (byte[] sigBytes, int sigLength)
 591                 {
 592                         throw new NotImplementedException ();
 593                 }
 594
 595                 public SignatureToken GetSignatureToken (SignatureHelper sigHelper)
 596                 {
 597                         if (sigHelper == null)
 598                                 throw new ArgumentNullException ("sigHelper");
 599                         return new SignatureToken (GetToken (sigHelper));
 600                 }
 601
 602                 public StringToken GetStringConstant (string str)
 603                 {
 604                         if (str == null)
 605                                 throw new ArgumentNullException ("str");
 606                         return new StringToken (GetToken (str));
 607                 }
 608
 609                 public TypeToken GetTypeToken (Type type)
 610                 {
 611                         if (type == null)
 612                                 throw new ArgumentNullException ("type");
 613                         if (type.IsByRef)
 614                                 throw new ArgumentException ("type can't be a byref type", "type");
 615                         if (!IsTransient () && (type.Module is ModuleBuilder) && ((ModuleBuilder)type.Module).IsTransient ())
 616                                 throw new InvalidOperationException ("a non-transient module can't reference a transient module");
 617                         return new TypeToken (GetToken (type));
 618                 }
 619
 620                 public TypeToken GetTypeToken (string type)
 621                 {
 622                         return GetTypeToken (GetType (name));
 623                 }
 624
 625                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 626                 private static extern int getUSIndex (ModuleBuilder mb, string str);
 627
 628                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 629                 private static extern int getToken (ModuleBuilder mb, object obj);
 630
 631                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 632                 private static extern int getMethodToken (ModuleBuilder mb, MethodInfo method,
 633                                                           Type[] opt_param_types);
 634
 635                 internal int GetToken (string str) {
 636                         if (us_string_cache.Contains (str))
 637                                 return (int)us_string_cache [str];
 638                         int result = getUSIndex (this, str);
 639                         us_string_cache [str] = result;
 640                         return result;
 641                 }
 642
 643                 internal int GetToken (MemberInfo member) {
 644                         return getToken (this, member);
 645                 }
 646
 647                 internal int GetToken (MethodInfo method, Type[] opt_param_types) {
 648                         return getMethodToken (this, method, opt_param_types);
 649                 }
 650
 651                 internal int GetToken (SignatureHelper helper) {
 652                         return getToken (this, helper);
 653                 }
 654
 655                 internal TokenGenerator GetTokenGenerator () {
 656                         if (token_gen == null)
 657                                 token_gen = new ModuleBuilderTokenGenerator (this);
 658                         return token_gen;
 659                 }
 660
 661                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 662                 private static extern void build_metadata (ModuleBuilder mb);
 663
 664                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 665                 private extern void WriteToFile (IntPtr handle);
 666
 667                 internal void Save ()
 668                 {
 669                         if (transient && !is_main)
 670                                 return;
 671
 672                         if (types != null) {
 673                                 for (int i = 0; i < num_types; ++i)
 674                                         if (!types [i].is_created)
 675                                                 throw new NotSupportedException ("Type '" + types [i].FullName + "' was not completed.");
 676                         }
 677
 678                         if ((global_type != null) && (global_type_created == null))
 679                                 global_type_created = global_type.CreateType ();
 680
 681                         if (resources != null) {
 682                                 for (int i = 0; i < resources.Length; ++i) {
 683                                         IResourceWriter rwriter;
 684                                         if (resource_writers != null && (rwriter = resource_writers [resources [i].name] as IResourceWriter) != null) {
 685                                                 ResourceWriter writer = (ResourceWriter)rwriter;
 686                                                 writer.Generate ();
 687                                                 MemoryStream mstream = (MemoryStream)writer.Stream;
 688                                                 resources [i].data = new byte [mstream.Length];
 689                                                 mstream.Seek (0, SeekOrigin.Begin);
 690                                                 mstream.Read (resources [i].data, 0, (int)mstream.Length);
 691                                                 continue;
 692                                         }
 693                                         Stream stream = resources [i].stream;
 694
 695                                         // According to MSDN docs, the stream is read during assembly save, not earlier
 696                                         if (stream != null) {
 697                                                 try {
 698                                                         long len = stream.Length;
 699                                                         resources [i].data = new byte [len];
 700                                                         stream.Seek (0, SeekOrigin.Begin);
 701                                                         stream.Read (resources [i].data, 0, (int)len);
 702                                                 } catch {
 703                                                         /* do something */
 704                                                 }
 705                                         }
 706                                 }
 707                         }
 708
 709                         build_metadata (this);
 710
 711                         string fileName = fqname;
 712                         if (assemblyb.AssemblyDir != null)
 713                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 714
 715                         try {
 716                                 // We mmap the file, so unlink the previous version since it may be in use
 717                                 File.Delete (fileName);
 718                         } catch {
 719                                 // We can safely ignore
 720                         }
 721                         using (FileStream file = new FileStream (fileName, FileMode.Create, FileAccess.Write))
 722                                 WriteToFile (file.Handle);
 723
 724                         //
 725                         // The constant 0x80000000 is internal to Mono, it means `make executable'
 726                         //
 727                         File.SetAttributes (fileName, (FileAttributes) (unchecked ((int) 0x80000000)));
 728
 729                         if (types != null && symbolWriter != null) {
 730                                 for (int i = 0; i < num_types; ++i)
 731                                         types [i].GenerateDebugInfo (symbolWriter);
 732                                 symbolWriter.Close ();
 733                         }
 734                 }
 735
 736                 internal string FileName {
 737                         get {
 738                                 return fqname;
 739                         }
 740                 }
 741
 742                 internal bool IsMain {
 743                         set {
 744                                 is_main = value;
 745                         }
 746                 }
 747
 748                 internal void CreateGlobalType () {
 749                         if (global_type == null)
 750                                 global_type = new TypeBuilder (this, 0);
 751                 }
 752
 753                 internal static Guid Mono_GetGuid (ModuleBuilder mb)
 754                 {
 755                         return new Guid (mb.guid);
 756                 }
 757
 758                 void _ModuleBuilder.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 759                 {
 760                         throw new NotImplementedException ();
 761                 }
 762
 763                 void _ModuleBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 764                 {
 765                         throw new NotImplementedException ();
 766                 }
 767
 768                 void _ModuleBuilder.GetTypeInfoCount (out uint pcTInfo)
 769                 {
 770                         throw new NotImplementedException ();
 771                 }
 772
 773                 void _ModuleBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 774                 {
 775                         throw new NotImplementedException ();
 776                 }
 777         }
 778
 779         internal class ModuleBuilderTokenGenerator : TokenGenerator {
 780
 781                 private ModuleBuilder mb;
 782
 783                 public ModuleBuilderTokenGenerator (ModuleBuilder mb) {
 784                         this.mb = mb;
 785                 }
 786
 787                 public int GetToken (string str) {
 788                         return mb.GetToken (str);
 789                 }
 790
 791                 public int GetToken (MemberInfo member) {
 792                         return mb.GetToken (member);
 793                 }
 794
 795                 public int GetToken (MethodInfo method, Type[] opt_param_types) {
 796                         return mb.GetToken (method, opt_param_types);
 797                 }
 798
 799                 public int GetToken (SignatureHelper helper) {
 800                         return mb.GetToken (helper);
 801                 }
 802         }
 803 }
 804