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.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         public class ModuleBuilder : Module, _ModuleBuilder {
  50
  51 #pragma warning disable 169, 414
  52                 #region Sync with object-internals.h
  53                 private UIntPtr dynamic_image; /* GC-tracked */
  54                 private int num_types;
  55                 private TypeBuilder[] types;
  56                 private CustomAttributeBuilder[] cattrs;
  57                 private byte[] guid;
  58                 private int table_idx;
  59                 internal AssemblyBuilder assemblyb;
  60                 private MethodBuilder[] global_methods;
  61                 private FieldBuilder[] global_fields;
  62                 bool is_main;
  63                 private MonoResource[] resources;
  64                 #endregion
  65 #pragma warning restore 169, 414
  66
  67                 private TypeBuilder global_type;
  68                 private Type global_type_created;
  69                 Hashtable name_cache;
  70                 Dictionary<string, int> us_string_cache;
  71                 private int[] table_indexes;
  72                 bool transient;
  73                 ModuleBuilderTokenGenerator token_gen;
  74                 Hashtable resource_writers;
  75                 ISymbolWriter symbolWriter;
  76
  77                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  78                 private static extern void basic_init (ModuleBuilder ab);
  79
  80                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  81                 private static extern void set_wrappers_type (ModuleBuilder mb, Type ab);
  82
  83                 internal ModuleBuilder (AssemblyBuilder assb, string name, string fullyqname, bool emitSymbolInfo, bool transient) {
  84                         this.name = this.scopename = name;
  85                         this.fqname = fullyqname;
  86                         this.assembly = this.assemblyb = assb;
  87                         this.transient = transient;
  88                         // to keep mcs fast we do not want CryptoConfig wo be involved to create the RNG
  89                         guid = Guid.FastNewGuidArray ();
  90                         // guid = Guid.NewGuid().ToByteArray ();
  91                         table_idx = get_next_table_index (this, 0x00, true);
  92                         name_cache = new Hashtable ();
  93                         us_string_cache = new Dictionary<string, int> (512);
  94
  95                         basic_init (this);
  96
  97                         CreateGlobalType ();
  98
  99                         if (assb.IsRun) {
 100                                 TypeBuilder tb = new TypeBuilder (this, TypeAttributes.Abstract, 0xFFFFFF); /*last valid token*/
 101                                 Type type = tb.CreateType ();
 102                                 set_wrappers_type (this, type);
 103                         }
 104
 105                         if (emitSymbolInfo) {
 106 #if MOONLIGHT
 107                                 symbolWriter = new Mono.CompilerServices.SymbolWriter.SymbolWriterImpl (this);
 108 #else
 109                                 Assembly asm = Assembly.LoadWithPartialName ("Mono.CompilerServices.SymbolWriter");
 110                                 if (asm == null)
 111                                         throw new TypeLoadException ("The assembly for default symbol writer cannot be loaded");
 112
 113                                 Type t = asm.GetType ("Mono.CompilerServices.SymbolWriter.SymbolWriterImpl", true);
 114                                 symbolWriter = (ISymbolWriter) Activator.CreateInstance (t, new object[] { this });
 115 #endif
 116                                 string fileName = fqname;
 117                                 if (assemblyb.AssemblyDir != null)
 118                                         fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 119                                 symbolWriter.Initialize (IntPtr.Zero, fileName, true);
 120                         }
 121                 }
 122
 123                 public override string FullyQualifiedName {get { return fqname;}}
 124
 125                 public bool IsTransient () {
 126                         return transient;
 127                 }
 128
 129                 public void CreateGlobalFunctions ()
 130                 {
 131                         if (global_type_created != null)
 132                                 throw new InvalidOperationException ("global methods already created");
 133                         if (global_type != null)
 134                                 global_type_created = global_type.CreateType ();
 135                 }
 136
 137                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 138                         if (data == null)
 139                                 throw new ArgumentNullException ("data");
 140
 141                         FieldBuilder fb = DefineUninitializedData (name, data.Length,
 142                                                                                                            attributes | FieldAttributes.HasFieldRVA);
 143                         fb.SetRVAData (data);
 144
 145                         return fb;
 146                 }
 147
 148                 public FieldBuilder DefineUninitializedData (string name, int size, FieldAttributes attributes)
 149                 {
 150                         if (name == null)
 151                                 throw new ArgumentNullException ("name");
 152                         if (global_type_created != null)
 153                                 throw new InvalidOperationException ("global fields already created");
 154                         if ((size <= 0) || (size > 0x3f0000))
 155                                 throw new ArgumentException ("size", "Data size must be > 0 and < 0x3f0000");
 156
 157                         CreateGlobalType ();
 158
 159                         string typeName = "$ArrayType$" + size;
 160                         Type datablobtype = GetType (typeName, false, false);
 161                         if (datablobtype == null) {
 162                                 TypeBuilder tb = DefineType (typeName,
 163                                     TypeAttributes.Public|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 164                                         assemblyb.corlib_value_type, null, PackingSize.Size1, size);
 165                                 tb.CreateType ();
 166                                 datablobtype = tb;
 167                         }
 168                         FieldBuilder fb = global_type.DefineField (name, datablobtype, attributes|FieldAttributes.Static);
 169
 170                         if (global_fields != null) {
 171                                 FieldBuilder[] new_fields = new FieldBuilder [global_fields.Length+1];
 172                                 System.Array.Copy (global_fields, new_fields, global_fields.Length);
 173                                 new_fields [global_fields.Length] = fb;
 174                                 global_fields = new_fields;
 175                         } else {
 176                                 global_fields = new FieldBuilder [1];
 177                                 global_fields [0] = fb;
 178                         }
 179                         return fb;
 180                 }
 181
 182                 private void addGlobalMethod (MethodBuilder mb) {
 183                         if (global_methods != null) {
 184                                 MethodBuilder[] new_methods = new MethodBuilder [global_methods.Length+1];
 185                                 System.Array.Copy (global_methods, new_methods, global_methods.Length);
 186                                 new_methods [global_methods.Length] = mb;
 187                                 global_methods = new_methods;
 188                         } else {
 189                                 global_methods = new MethodBuilder [1];
 190                                 global_methods [0] = mb;
 191                         }
 192                 }
 193
 194                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes)
 195                 {
 196                         return DefineGlobalMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 197                 }
 198
 199                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 200                         return DefineGlobalMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 201                 }
 202
 203                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] requiredReturnTypeCustomModifiers, Type[] optionalReturnTypeCustomModifiers, Type[] parameterTypes, Type[][] requiredParameterTypeCustomModifiers, Type[][] optionalParameterTypeCustomModifiers)
 204                 {
 205                         if (name == null)
 206                                 throw new ArgumentNullException ("name");
 207                         if ((attributes & MethodAttributes.Static) == 0)
 208                                 throw new ArgumentException ("global methods must be static");
 209                         if (global_type_created != null)
 210                                 throw new InvalidOperationException ("global methods already created");
 211                         CreateGlobalType ();
 212                         MethodBuilder mb = global_type.DefineMethod (name, attributes, callingConvention, returnType, requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers, parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterTypeCustomModifiers);
 213
 214                         addGlobalMethod (mb);
 215                         return mb;
 216                 }
 217
 218                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 219                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 220                 }
 221
 222                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 223                         if (name == null)
 224                                 throw new ArgumentNullException ("name");
 225                         if ((attributes & MethodAttributes.Static) == 0)
 226                                 throw new ArgumentException ("global methods must be static");
 227                         if (global_type_created != null)
 228                                 throw new InvalidOperationException ("global methods already created");
 229                         CreateGlobalType ();
 230                         MethodBuilder mb = global_type.DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 231
 232                         addGlobalMethod (mb);
 233                         return mb;
 234                 }
 235
 236                 public TypeBuilder DefineType (string name) {
 237                         return DefineType (name, 0);
 238                 }
 239
 240                 public TypeBuilder DefineType (string name, TypeAttributes attr) {
 241                         if ((attr & TypeAttributes.Interface) != 0)
 242                                 return DefineType (name, attr, null, null);
 243                         return DefineType (name, attr, typeof(object), null);
 244                 }
 245
 246                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent) {
 247                         return DefineType (name, attr, parent, null);
 248                 }
 249
 250                 private void AddType (TypeBuilder tb)
 251                 {
 252                         if (types != null) {
 253                                 if (types.Length == num_types) {
 254                                         TypeBuilder[] new_types = new TypeBuilder [types.Length * 2];
 255                                         System.Array.Copy (types, new_types, num_types);
 256                                         types = new_types;
 257                                 }
 258                         } else {
 259                                 types = new TypeBuilder [1];
 260                         }
 261                         types [num_types] = tb;
 262                         num_types ++;
 263                 }
 264
 265                 private TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packingSize, int typesize) {
 266                         if (name == null)
 267                                 throw new ArgumentNullException ("fullname");
 268                         if (name_cache.ContainsKey (name))
 269                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 270                         TypeBuilder res = new TypeBuilder (this, name, attr, parent, interfaces, packingSize, typesize, null);
 271                         AddType (res);
 272
 273                         name_cache.Add (name, res);
 274
 275                         return res;
 276                 }
 277
 278                 internal void RegisterTypeName (TypeBuilder tb, string name)
 279                 {
 280                         name_cache.Add (name, tb);
 281                 }
 282
 283                 internal TypeBuilder GetRegisteredType (string name)
 284                 {
 285                         return (TypeBuilder) name_cache [name];
 286                 }
 287
 288                 [ComVisible (true)]
 289                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 290                         return DefineType (name, attr, parent, interfaces, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 291                 }
 292
 293                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, int typesize) {
 294                         return DefineType (name, attr, parent, null, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 295                 }
 296
 297                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 298                         return DefineType (name, attr, parent, null, packsize, TypeBuilder.UnspecifiedTypeSize);
 299                 }
 300
 301                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packingSize, int typesize) {
 302                         return DefineType (name, attr, parent, null, packingSize, typesize);
 303                 }
 304
 305                 public MethodInfo GetArrayMethod( Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 306                         return new MonoArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes);
 307                 }
 308
 309                 public EnumBuilder DefineEnum( string name, TypeAttributes visibility, Type underlyingType) {
 310                         if (name_cache.Contains (name))
 311                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 312
 313                         EnumBuilder eb = new EnumBuilder (this, name, visibility, underlyingType);
 314                         TypeBuilder res = eb.GetTypeBuilder ();
 315                         AddType (res);
 316                         name_cache.Add (name, res);
 317                         return eb;
 318                 }
 319
 320                 [ComVisible (true)]
 321                 public override Type GetType( string className) {
 322                         return GetType (className, false, false);
 323                 }
 324
 325                 [ComVisible (true)]
 326                 public override Type GetType( string className, bool ignoreCase) {
 327                         return GetType (className, false, ignoreCase);
 328                 }
 329
 330                 private TypeBuilder search_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 331                         int i;
 332                         for (i = 0; i < validElementsInArray; ++i) {
 333                                 if (String.Compare (className, arr [i].FullName, true, CultureInfo.InvariantCulture) == 0) {
 334                                         return arr [i];
 335                                 }
 336                         }
 337                         return null;
 338                 }
 339
 340                 private TypeBuilder search_nested_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 341                         int i;
 342                         for (i = 0; i < validElementsInArray; ++i) {
 343                                 if (String.Compare (className, arr [i].Name, true, CultureInfo.InvariantCulture) == 0)
 344                                         return arr [i];
 345                         }
 346                         return null;
 347                 }
 348
 349                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 350                 private static extern Type create_modified_type (TypeBuilder tb, string modifiers);
 351
 352                 static readonly char [] type_modifiers = {'&', '[', '*'};
 353
 354                 private TypeBuilder GetMaybeNested (TypeBuilder t, string className) {
 355                         int subt;
 356                         string pname, rname;
 357
 358                         subt = className.IndexOf ('+');
 359                         if (subt < 0) {
 360                                 if (t.subtypes != null)
 361                                         return search_nested_in_array (t.subtypes, t.subtypes.Length, className);
 362                                 return null;
 363                         }
 364                         if (t.subtypes != null) {
 365                                 pname = className.Substring (0, subt);
 366                                 rname = className.Substring (subt + 1);
 367                                 TypeBuilder result = search_nested_in_array (t.subtypes, t.subtypes.Length, pname);
 368                                 if (result != null)
 369                                         return GetMaybeNested (result, rname);
 370                         }
 371                         return null;
 372                 }
 373
 374                 [ComVisible (true)]
 375                 public override Type GetType (string className, bool throwOnError, bool ignoreCase)
 376                 {
 377                         if (className == null)
 378                                 throw new ArgumentNullException ("className");
 379                         if (className.Length == 0)
 380                                 throw new ArgumentException ("className");
 381
 382                         int subt;
 383                         string orig = className;
 384                         string modifiers;
 385                         TypeBuilder result = null;
 386
 387                         if (types == null && throwOnError)
 388                                 throw new TypeLoadException (className);
 389
 390                         subt = className.IndexOfAny (type_modifiers);
 391                         if (subt >= 0) {
 392                                 modifiers = className.Substring (subt);
 393                                 className = className.Substring (0, subt);
 394                         } else
 395                                 modifiers = null;
 396
 397                         if (!ignoreCase) {
 398                                 result =  name_cache [className] as TypeBuilder;
 399                         } else {
 400                                 subt = className.IndexOf ('+');
 401                                 if (subt < 0) {
 402                                         if (types != null)
 403                                                 result = search_in_array (types, num_types,  className);
 404                                 } else {
 405                                         string pname, rname;
 406                                         pname = className.Substring (0, subt);
 407                                         rname = className.Substring (subt + 1);
 408                                         result = search_in_array (types, num_types, pname);
 409                                         if (result != null)
 410                                                 result = GetMaybeNested (result, rname);
 411                                 }
 412                         }
 413                         if ((result == null) && throwOnError)
 414                                 throw new TypeLoadException (orig);
 415                         if (result != null && (modifiers != null)) {
 416                                 Type mt = create_modified_type (result, modifiers);
 417                                 result = mt as TypeBuilder;
 418                                 if (result == null)
 419                                         return mt;
 420                         }
 421                         if (result != null && result.is_created)
 422                                 return result.CreateType ();
 423                         else
 424                                 return result;
 425                 }
 426
 427                 internal int get_next_table_index (object obj, int table, bool inc) {
 428                         if (table_indexes == null) {
 429                                 table_indexes = new int [64];
 430                                 for (int i=0; i < 64; ++i)
 431                                         table_indexes [i] = 1;
 432                                 /* allow room for .<Module> in TypeDef table */
 433                                 table_indexes [0x02] = 2;
 434                         }
 435                         // Console.WriteLine ("getindex for table "+table.ToString()+" got "+table_indexes [table].ToString());
 436                         if (inc)
 437                                 return table_indexes [table]++;
 438                         return table_indexes [table];
 439                 }
 440
 441                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 442                         if (cattrs != null) {
 443                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 444                                 cattrs.CopyTo (new_array, 0);
 445                                 new_array [cattrs.Length] = customBuilder;
 446                                 cattrs = new_array;
 447                         } else {
 448                                 cattrs = new CustomAttributeBuilder [1];
 449                                 cattrs [0] = customBuilder;
 450                         }
 451                 }
 452
 453                 [ComVisible (true)]
 454                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 455                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 456                 }
 457
 458                 public ISymbolWriter GetSymWriter () {
 459                         return symbolWriter;
 460                 }
 461
 462                 public ISymbolDocumentWriter DefineDocument (string url, Guid language, Guid languageVendor, Guid documentType)
 463                 {
 464                         if (symbolWriter != null)
 465                                 return symbolWriter.DefineDocument (url, language, languageVendor, documentType);
 466                         else
 467                                 return null;
 468                 }
 469
 470                 public override Type [] GetTypes ()
 471                 {
 472                         if (types == null)
 473                                 return Type.EmptyTypes;
 474
 475                         int n = num_types;
 476                         Type [] copy = new Type [n];
 477                         Array.Copy (types, copy, n);
 478
 479                         // MS replaces the typebuilders with their created types
 480                         for (int i = 0; i < copy.Length; ++i)
 481                                 if (types [i].is_created)
 482                                         copy [i] = types [i].CreateType ();
 483
 484                         return copy;
 485                 }
 486
 487                 public IResourceWriter DefineResource (string name, string description, ResourceAttributes attribute)
 488                 {
 489                         if (name == null)
 490                                 throw new ArgumentNullException ("name");
 491                         if (name == String.Empty)
 492                                 throw new ArgumentException ("name cannot be empty");
 493                         if (transient)
 494                                 throw new InvalidOperationException ("The module is transient");
 495                         if (!assemblyb.IsSave)
 496                                 throw new InvalidOperationException ("The assembly is transient");
 497                         ResourceWriter writer = new ResourceWriter (new MemoryStream ());
 498                         if (resource_writers == null)
 499                                 resource_writers = new Hashtable ();
 500                         resource_writers [name] = writer;
 501
 502                         // The data is filled out later
 503                         if (resources != null) {
 504                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 505                                 System.Array.Copy(resources, new_r, resources.Length);
 506                                 resources = new_r;
 507                         } else {
 508                                 resources = new MonoResource [1];
 509                         }
 510                         int p = resources.Length - 1;
 511                         resources [p].name = name;
 512                         resources [p].attrs = attribute;
 513
 514                         return writer;
 515                 }
 516
 517                 public IResourceWriter DefineResource (string name, string description)
 518                 {
 519                         return DefineResource (name, description, ResourceAttributes.Public);
 520                 }
 521
 522                 [MonoTODO]
 523                 public void DefineUnmanagedResource (byte[] resource)
 524                 {
 525                         if (resource == null)
 526                                 throw new ArgumentNullException ("resource");
 527
 528                         throw new NotImplementedException ();
 529                 }
 530
 531                 [MonoTODO]
 532                 public void DefineUnmanagedResource (string resourceFileName)
 533                 {
 534                         if (resourceFileName == null)
 535                                 throw new ArgumentNullException ("resourceFileName");
 536                         if (resourceFileName == String.Empty)
 537                                 throw new ArgumentException ("resourceFileName");
 538                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 539                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exists or is a directory.");
 540
 541                         throw new NotImplementedException ();
 542                 }
 543
 544                 public void DefineManifestResource (string name, Stream stream, ResourceAttributes attribute) {
 545                         if (name == null)
 546                                 throw new ArgumentNullException ("name");
 547                         if (name == String.Empty)
 548                                 throw new ArgumentException ("name cannot be empty");
 549                         if (stream == null)
 550                                 throw new ArgumentNullException ("stream");
 551                         if (transient)
 552                                 throw new InvalidOperationException ("The module is transient");
 553                         if (!assemblyb.IsSave)
 554                                 throw new InvalidOperationException ("The assembly is transient");
 555
 556                         if (resources != null) {
 557                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 558                                 System.Array.Copy(resources, new_r, resources.Length);
 559                                 resources = new_r;
 560                         } else {
 561                                 resources = new MonoResource [1];
 562                         }
 563                         int p = resources.Length - 1;
 564                         resources [p].name = name;
 565                         resources [p].attrs = attribute;
 566                         resources [p].stream = stream;
 567                 }
 568
 569                 [MonoTODO]
 570                 public void SetSymCustomAttribute (string name, byte[] data)
 571                 {
 572                         throw new NotImplementedException ();
 573                 }
 574
 575                 [MonoTODO]
 576                 public void SetUserEntryPoint (MethodInfo entryPoint)
 577                 {
 578                         if (entryPoint == null)
 579                                 throw new ArgumentNullException ("entryPoint");
 580                         if (entryPoint.DeclaringType.Module != this)
 581                                 throw new InvalidOperationException ("entryPoint is not contained in this module");
 582                         throw new NotImplementedException ();
 583                 }
 584
 585                 public MethodToken GetMethodToken (MethodInfo method)
 586                 {
 587                         if (method == null)
 588                                 throw new ArgumentNullException ("method");
 589                         if (method.DeclaringType.Module != this)
 590                                 throw new InvalidOperationException ("The method is not in this module");
 591                         return new MethodToken (GetToken (method));
 592                 }
 593
 594                 public MethodToken GetArrayMethodToken (Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes)
 595                 {
 596                         return GetMethodToken (GetArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes));
 597                 }
 598
 599                 [ComVisible (true)]
 600                 public MethodToken GetConstructorToken (ConstructorInfo con)
 601                 {
 602                         if (con == null)
 603                                 throw new ArgumentNullException ("con");
 604                         if (con.DeclaringType.Module != this)
 605                                 throw new InvalidOperationException ("The constructor is not in this module");
 606                         return new MethodToken (GetToken (con));
 607                 }
 608
 609                 public FieldToken GetFieldToken (FieldInfo field)
 610                 {
 611                         if (field == null)
 612                                 throw new ArgumentNullException ("field");
 613                         if (field.DeclaringType.Module != this)
 614                                 throw new InvalidOperationException ("The method is not in this module");
 615                         return new FieldToken (GetToken (field));
 616                 }
 617
 618                 [MonoTODO]
 619                 public SignatureToken GetSignatureToken (byte[] sigBytes, int sigLength)
 620                 {
 621                         throw new NotImplementedException ();
 622                 }
 623
 624                 public SignatureToken GetSignatureToken (SignatureHelper sigHelper)
 625                 {
 626                         if (sigHelper == null)
 627                                 throw new ArgumentNullException ("sigHelper");
 628                         return new SignatureToken (GetToken (sigHelper));
 629                 }
 630
 631                 public StringToken GetStringConstant (string str)
 632                 {
 633                         if (str == null)
 634                                 throw new ArgumentNullException ("str");
 635                         return new StringToken (GetToken (str));
 636                 }
 637
 638                 public TypeToken GetTypeToken (Type type)
 639                 {
 640                         if (type == null)
 641                                 throw new ArgumentNullException ("type");
 642                         if (type.IsByRef)
 643                                 throw new ArgumentException ("type can't be a byref type", "type");
 644                         if (!IsTransient () && (type.Module is ModuleBuilder) && ((ModuleBuilder)type.Module).IsTransient ())
 645                                 throw new InvalidOperationException ("a non-transient module can't reference a transient module");
 646                         return new TypeToken (GetToken (type));
 647                 }
 648
 649                 public TypeToken GetTypeToken (string name)
 650                 {
 651                         return GetTypeToken (GetType (name));
 652                 }
 653
 654                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 655                 private static extern int getUSIndex (ModuleBuilder mb, string str);
 656
 657                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 658                 private static extern int getToken (ModuleBuilder mb, object obj, bool create_open_instance);
 659
 660                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 661                 private static extern int getMethodToken (ModuleBuilder mb, MethodInfo method,
 662                                                           Type[] opt_param_types);
 663
 664                 internal int GetToken (string str)
 665                 {
 666                         int result;
 667                         if (!us_string_cache.TryGetValue (str, out result)) {
 668                                 result = getUSIndex (this, str);
 669                                 us_string_cache [str] = result;
 670                         }
 671
 672                         return result;
 673                 }
 674
 675                 internal int GetToken (MemberInfo member) {
 676                         return getToken (this, member, true);
 677                 }
 678
 679                 internal int GetToken (MemberInfo member, bool create_open_instance) {
 680                         return getToken (this, member, create_open_instance);
 681                 }
 682
 683                 internal int GetToken (MethodInfo method, Type[] opt_param_types) {
 684                         return getMethodToken (this, method, opt_param_types);
 685                 }
 686
 687                 internal int GetToken (SignatureHelper helper) {
 688                         return getToken (this, helper, true);
 689                 }
 690
 691                 /*
 692                  * Register the token->obj mapping with the runtime so the Module.Resolve...
 693                  * methods will work for obj.
 694                  */
 695                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 696                 internal extern void RegisterToken (object obj, int token);
 697
 698                 internal TokenGenerator GetTokenGenerator () {
 699                         if (token_gen == null)
 700                                 token_gen = new ModuleBuilderTokenGenerator (this);
 701                         return token_gen;
 702                 }
 703
 704                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 705                 private static extern void build_metadata (ModuleBuilder mb);
 706
 707                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 708                 private extern void WriteToFile (IntPtr handle);
 709
 710                 internal void Save ()
 711                 {
 712                         if (transient && !is_main)
 713                                 return;
 714
 715                         if (types != null) {
 716                                 for (int i = 0; i < num_types; ++i)
 717                                         if (!types [i].is_created)
 718                                                 throw new NotSupportedException ("Type '" + types [i].FullName + "' was not completed.");
 719                         }
 720
 721                         if ((global_type != null) && (global_type_created == null))
 722                                 global_type_created = global_type.CreateType ();
 723
 724                         if (resources != null) {
 725                                 for (int i = 0; i < resources.Length; ++i) {
 726                                         IResourceWriter rwriter;
 727                                         if (resource_writers != null && (rwriter = resource_writers [resources [i].name] as IResourceWriter) != null) {
 728                                                 ResourceWriter writer = (ResourceWriter)rwriter;
 729                                                 writer.Generate ();
 730                                                 MemoryStream mstream = (MemoryStream)writer.Stream;
 731                                                 resources [i].data = new byte [mstream.Length];
 732                                                 mstream.Seek (0, SeekOrigin.Begin);
 733                                                 mstream.Read (resources [i].data, 0, (int)mstream.Length);
 734                                                 continue;
 735                                         }
 736                                         Stream stream = resources [i].stream;
 737
 738                                         // According to MSDN docs, the stream is read during assembly save, not earlier
 739                                         if (stream != null) {
 740                                                 try {
 741                                                         long len = stream.Length;
 742                                                         resources [i].data = new byte [len];
 743                                                         stream.Seek (0, SeekOrigin.Begin);
 744                                                         stream.Read (resources [i].data, 0, (int)len);
 745                                                 } catch {
 746                                                         /* do something */
 747                                                 }
 748                                         }
 749                                 }
 750                         }
 751
 752                         build_metadata (this);
 753
 754                         string fileName = fqname;
 755                         if (assemblyb.AssemblyDir != null)
 756                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 757
 758                         try {
 759                                 // We mmap the file, so unlink the previous version since it may be in use
 760                                 File.Delete (fileName);
 761                         } catch {
 762                                 // We can safely ignore
 763                         }
 764                         using (FileStream file = new FileStream (fileName, FileMode.Create, FileAccess.Write))
 765                                 WriteToFile (file.Handle);
 766
 767                         //
 768                         // The constant 0x80000000 is internal to Mono, it means `make executable'
 769                         //
 770                         File.SetAttributes (fileName, (FileAttributes) (unchecked ((int) 0x80000000)));
 771
 772                         if (types != null && symbolWriter != null) {
 773                                 for (int i = 0; i < num_types; ++i)
 774                                         types [i].GenerateDebugInfo (symbolWriter);
 775                                 symbolWriter.Close ();
 776                         }
 777                 }
 778
 779                 internal string FileName {
 780                         get {
 781                                 return fqname;
 782                         }
 783                 }
 784
 785                 internal bool IsMain {
 786                         set {
 787                                 is_main = value;
 788                         }
 789                 }
 790
 791                 internal void CreateGlobalType () {
 792                         if (global_type == null)
 793                                 global_type = new TypeBuilder (this, 0, 1);
 794                 }
 795
 796                 internal override Guid GetModuleVersionId ()
 797                 {
 798                         return new Guid (guid);
 799                 }
 800
 801                 // Used by mcs, the symbol writer, and mdb through reflection
 802                 internal static Guid Mono_GetGuid (ModuleBuilder mb)
 803                 {
 804                         return mb.GetModuleVersionId ();
 805                 }
 806
 807                 void _ModuleBuilder.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 808                 {
 809                         throw new NotImplementedException ();
 810                 }
 811
 812                 void _ModuleBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 813                 {
 814                         throw new NotImplementedException ();
 815                 }
 816
 817                 void _ModuleBuilder.GetTypeInfoCount (out uint pcTInfo)
 818                 {
 819                         throw new NotImplementedException ();
 820                 }
 821
 822                 void _ModuleBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 823                 {
 824                         throw new NotImplementedException ();
 825                 }
 826
 827 #if NET_4_0 || MOONLIGHT
 828                 public override Assembly Assembly {
 829                         get { return assemblyb; }
 830                 }
 831
 832                 public override string Name {
 833                         get { return name; }
 834                 }
 835
 836                 public override string ScopeName {
 837                         get { return name; }
 838                 }
 839
 840                 public override Guid ModuleVersionId {
 841                         get {
 842                                 return GetModuleVersionId ();
 843                         }
 844                 }
 845
 846                 //XXX resource modules can't be defined with ModuleBuilder
 847                 public override bool IsResource ()
 848                 {
 849                         return false;
 850                 }
 851
 852                 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
 853                 {
 854                         if (global_type_created == null)
 855                                 return null;
 856                         if (types == null)
 857                                 return global_type_created.GetMethod (name);
 858                         return global_type_created.GetMethod (name, bindingAttr, binder, callConvention, types, modifiers);
 859                 }
 860
 861                 public override FieldInfo ResolveField (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 862                         ResolveTokenError error;
 863
 864                         IntPtr handle = ResolveFieldToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 865                         if (handle == IntPtr.Zero)
 866                                 throw resolve_token_exception (metadataToken, error, "Field");
 867                         else
 868                                 return FieldInfo.GetFieldFromHandle (new RuntimeFieldHandle (handle));
 869                 }
 870
 871                 public override MemberInfo ResolveMember (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 872
 873                         ResolveTokenError error;
 874
 875                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 876                         if (m == null)
 877                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
 878                         else
 879                                 return m;
 880                 }
 881
 882                 public override MethodBase ResolveMethod (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 883                         ResolveTokenError error;
 884
 885                         IntPtr handle = ResolveMethodToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 886                         if (handle == IntPtr.Zero)
 887                                 throw resolve_token_exception (metadataToken, error, "MethodBase");
 888                         else
 889                                 return MethodBase.GetMethodFromHandleNoGenericCheck (new RuntimeMethodHandle (handle));
 890                 }
 891
 892                 public override string ResolveString (int metadataToken) {
 893                         ResolveTokenError error;
 894
 895                         string s = ResolveStringToken (_impl, metadataToken, out error);
 896                         if (s == null)
 897                                 throw resolve_token_exception (metadataToken, error, "string");
 898                         else
 899                                 return s;
 900                 }
 901
 902                 public override byte[] ResolveSignature (int metadataToken) {
 903                         ResolveTokenError error;
 904
 905                     byte[] res = ResolveSignature (_impl, metadataToken, out error);
 906                         if (res == null)
 907                                 throw resolve_token_exception (metadataToken, error, "signature");
 908                         else
 909                                 return res;
 910                 }
 911
 912                 public override Type ResolveType (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 913                         ResolveTokenError error;
 914
 915                         IntPtr handle = ResolveTypeToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 916                         if (handle == IntPtr.Zero)
 917                                 throw resolve_token_exception (metadataToken, error, "Type");
 918                         else
 919                                 return Type.GetTypeFromHandle (new RuntimeTypeHandle (handle));
 920                 }
 921
 922 #endif
 923         }
 924
 925         internal class ModuleBuilderTokenGenerator : TokenGenerator {
 926
 927                 private ModuleBuilder mb;
 928
 929                 public ModuleBuilderTokenGenerator (ModuleBuilder mb) {
 930                         this.mb = mb;
 931                 }
 932
 933                 public int GetToken (string str) {
 934                         return mb.GetToken (str);
 935                 }
 936
 937                 public int GetToken (MemberInfo member, bool create_open_instance) {
 938                         return mb.GetToken (member, create_open_instance);
 939                 }
 940
 941                 public int GetToken (MethodInfo method, Type[] opt_param_types) {
 942                         return mb.GetToken (method, opt_param_types);
 943                 }
 944
 945                 public int GetToken (SignatureHelper helper) {
 946                         return mb.GetToken (helper);
 947                 }
 948         }
 949 }
 950