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 #if !FULL_AOT_RUNTIME
  35 using System;
  36 using System.Reflection;
  37 using System.Collections;
  38 using System.Collections.Generic;
  39 using System.Runtime.CompilerServices;
  40 using System.Runtime.InteropServices;
  41 using System.Diagnostics.SymbolStore;
  42 using System.IO;
  43 using System.Resources;
  44 using System.Globalization;
  45
  46 namespace System.Reflection.Emit {
  47         [ComVisible (true)]
  48         [ComDefaultInterface (typeof (_ModuleBuilder))]
  49         [ClassInterface (ClassInterfaceType.None)]
  50         [StructLayout (LayoutKind.Sequential)]
  51         public class ModuleBuilder : Module, _ModuleBuilder {
  52
  53 #pragma warning disable 169, 414
  54                 #region Sync with object-internals.h
  55                 private UIntPtr dynamic_image; /* GC-tracked */
  56                 private int num_types;
  57                 private TypeBuilder[] types;
  58                 private CustomAttributeBuilder[] cattrs;
  59                 private byte[] guid;
  60                 private int table_idx;
  61                 internal AssemblyBuilder assemblyb;
  62                 private MethodBuilder[] global_methods;
  63                 private FieldBuilder[] global_fields;
  64                 bool is_main;
  65                 private MonoResource[] resources;
  66                 #endregion
  67 #pragma warning restore 169, 414
  68
  69                 private TypeBuilder global_type;
  70                 private Type global_type_created;
  71                 Hashtable name_cache;
  72                 Dictionary<string, int> us_string_cache;
  73                 private int[] table_indexes;
  74                 bool transient;
  75                 ModuleBuilderTokenGenerator token_gen;
  76                 Hashtable resource_writers;
  77                 ISymbolWriter symbolWriter;
  78
  79                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  80                 private static extern void basic_init (ModuleBuilder ab);
  81
  82                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  83                 private static extern void set_wrappers_type (ModuleBuilder mb, Type ab);
  84
  85                 internal ModuleBuilder (AssemblyBuilder assb, string name, string fullyqname, bool emitSymbolInfo, bool transient) {
  86                         this.name = this.scopename = name;
  87                         this.fqname = fullyqname;
  88                         this.assembly = this.assemblyb = assb;
  89                         this.transient = transient;
  90                         // to keep mcs fast we do not want CryptoConfig wo be involved to create the RNG
  91                         guid = Guid.FastNewGuidArray ();
  92                         // guid = Guid.NewGuid().ToByteArray ();
  93                         table_idx = get_next_table_index (this, 0x00, true);
  94                         name_cache = new Hashtable ();
  95                         us_string_cache = new Dictionary<string, int> (512);
  96
  97                         basic_init (this);
  98
  99                         CreateGlobalType ();
 100
 101                         if (assb.IsRun) {
 102                                 TypeBuilder tb = new TypeBuilder (this, TypeAttributes.Abstract, 0xFFFFFF); /*last valid token*/
 103                                 Type type = tb.CreateType ();
 104                                 set_wrappers_type (this, type);
 105                         }
 106
 107                         if (emitSymbolInfo) {
 108                                 Assembly asm = Assembly.LoadWithPartialName ("Mono.CompilerServices.SymbolWriter");
 109                                 if (asm == null)
 110                                         throw new TypeLoadException ("The assembly for default symbol writer cannot be loaded");
 111
 112                                 Type t = asm.GetType ("Mono.CompilerServices.SymbolWriter.SymbolWriterImpl", true);
 113                                 symbolWriter = (ISymbolWriter) Activator.CreateInstance (t, new object[] { this });
 114                                 string fileName = fqname;
 115                                 if (assemblyb.AssemblyDir != null)
 116                                         fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 117                                 symbolWriter.Initialize (IntPtr.Zero, fileName, true);
 118                         }
 119                 }
 120
 121                 public override string FullyQualifiedName {get { return fqname;}}
 122
 123                 public bool IsTransient () {
 124                         return transient;
 125                 }
 126
 127                 public void CreateGlobalFunctions ()
 128                 {
 129                         if (global_type_created != null)
 130                                 throw new InvalidOperationException ("global methods already created");
 131                         if (global_type != null)
 132                                 global_type_created = global_type.CreateType ();
 133                 }
 134
 135                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 136                         if (data == null)
 137                                 throw new ArgumentNullException ("data");
 138
 139                         FieldBuilder fb = DefineUninitializedData (name, data.Length,
 140                                                                                                            attributes | FieldAttributes.HasFieldRVA);
 141                         fb.SetRVAData (data);
 142
 143                         return fb;
 144                 }
 145
 146                 public FieldBuilder DefineUninitializedData (string name, int size, FieldAttributes attributes)
 147                 {
 148                         if (name == null)
 149                                 throw new ArgumentNullException ("name");
 150                         if (global_type_created != null)
 151                                 throw new InvalidOperationException ("global fields already created");
 152                         if ((size <= 0) || (size > 0x3f0000))
 153                                 throw new ArgumentException ("size", "Data size must be > 0 and < 0x3f0000");
 154
 155                         CreateGlobalType ();
 156
 157                         string typeName = "$ArrayType$" + size;
 158                         Type datablobtype = GetType (typeName, false, false);
 159                         if (datablobtype == null) {
 160                                 TypeBuilder tb = DefineType (typeName,
 161                                     TypeAttributes.Public|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 162                                         assemblyb.corlib_value_type, null, PackingSize.Size1, size);
 163                                 tb.CreateType ();
 164                                 datablobtype = tb;
 165                         }
 166                         FieldBuilder fb = global_type.DefineField (name, datablobtype, attributes|FieldAttributes.Static);
 167
 168                         if (global_fields != null) {
 169                                 FieldBuilder[] new_fields = new FieldBuilder [global_fields.Length+1];
 170                                 System.Array.Copy (global_fields, new_fields, global_fields.Length);
 171                                 new_fields [global_fields.Length] = fb;
 172                                 global_fields = new_fields;
 173                         } else {
 174                                 global_fields = new FieldBuilder [1];
 175                                 global_fields [0] = fb;
 176                         }
 177                         return fb;
 178                 }
 179
 180                 private void addGlobalMethod (MethodBuilder mb) {
 181                         if (global_methods != null) {
 182                                 MethodBuilder[] new_methods = new MethodBuilder [global_methods.Length+1];
 183                                 System.Array.Copy (global_methods, new_methods, global_methods.Length);
 184                                 new_methods [global_methods.Length] = mb;
 185                                 global_methods = new_methods;
 186                         } else {
 187                                 global_methods = new MethodBuilder [1];
 188                                 global_methods [0] = mb;
 189                         }
 190                 }
 191
 192                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes)
 193                 {
 194                         return DefineGlobalMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 195                 }
 196
 197                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 198                         return DefineGlobalMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 199                 }
 200
 201                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] requiredReturnTypeCustomModifiers, Type[] optionalReturnTypeCustomModifiers, Type[] parameterTypes, Type[][] requiredParameterTypeCustomModifiers, Type[][] optionalParameterTypeCustomModifiers)
 202                 {
 203                         if (name == null)
 204                                 throw new ArgumentNullException ("name");
 205                         if ((attributes & MethodAttributes.Static) == 0)
 206                                 throw new ArgumentException ("global methods must be static");
 207                         if (global_type_created != null)
 208                                 throw new InvalidOperationException ("global methods already created");
 209                         CreateGlobalType ();
 210                         MethodBuilder mb = global_type.DefineMethod (name, attributes, callingConvention, returnType, requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers, parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterTypeCustomModifiers);
 211
 212                         addGlobalMethod (mb);
 213                         return mb;
 214                 }
 215
 216                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 217                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 218                 }
 219
 220                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 221                         if (name == null)
 222                                 throw new ArgumentNullException ("name");
 223                         if ((attributes & MethodAttributes.Static) == 0)
 224                                 throw new ArgumentException ("global methods must be static");
 225                         if (global_type_created != null)
 226                                 throw new InvalidOperationException ("global methods already created");
 227                         CreateGlobalType ();
 228                         MethodBuilder mb = global_type.DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 229
 230                         addGlobalMethod (mb);
 231                         return mb;
 232                 }
 233
 234                 public TypeBuilder DefineType (string name) {
 235                         return DefineType (name, 0);
 236                 }
 237
 238                 public TypeBuilder DefineType (string name, TypeAttributes attr) {
 239                         if ((attr & TypeAttributes.Interface) != 0)
 240                                 return DefineType (name, attr, null, null);
 241                         return DefineType (name, attr, typeof(object), null);
 242                 }
 243
 244                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent) {
 245                         return DefineType (name, attr, parent, null);
 246                 }
 247
 248                 private void AddType (TypeBuilder tb)
 249                 {
 250                         if (types != null) {
 251                                 if (types.Length == num_types) {
 252                                         TypeBuilder[] new_types = new TypeBuilder [types.Length * 2];
 253                                         System.Array.Copy (types, new_types, num_types);
 254                                         types = new_types;
 255                                 }
 256                         } else {
 257                                 types = new TypeBuilder [1];
 258                         }
 259                         types [num_types] = tb;
 260                         num_types ++;
 261                 }
 262
 263                 private TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packingSize, int typesize) {
 264                         if (name == null)
 265                                 throw new ArgumentNullException ("fullname");
 266                         if (name_cache.ContainsKey (name))
 267                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 268                         TypeBuilder res = new TypeBuilder (this, name, attr, parent, interfaces, packingSize, typesize, null);
 269                         AddType (res);
 270
 271                         name_cache.Add (name, res);
 272
 273                         return res;
 274                 }
 275
 276                 internal void RegisterTypeName (TypeBuilder tb, string name)
 277                 {
 278                         name_cache.Add (name, tb);
 279                 }
 280
 281                 internal TypeBuilder GetRegisteredType (string name)
 282                 {
 283                         return (TypeBuilder) name_cache [name];
 284                 }
 285
 286                 [ComVisible (true)]
 287                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 288                         return DefineType (name, attr, parent, interfaces, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 289                 }
 290
 291                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, int typesize) {
 292                         return DefineType (name, attr, parent, null, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 293                 }
 294
 295                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 296                         return DefineType (name, attr, parent, null, packsize, TypeBuilder.UnspecifiedTypeSize);
 297                 }
 298
 299                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packingSize, int typesize) {
 300                         return DefineType (name, attr, parent, null, packingSize, typesize);
 301                 }
 302
 303                 public MethodInfo GetArrayMethod( Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 304                         return new MonoArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes);
 305                 }
 306
 307                 public EnumBuilder DefineEnum( string name, TypeAttributes visibility, Type underlyingType) {
 308                         if (name_cache.Contains (name))
 309                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 310
 311                         EnumBuilder eb = new EnumBuilder (this, name, visibility, underlyingType);
 312                         TypeBuilder res = eb.GetTypeBuilder ();
 313                         AddType (res);
 314                         name_cache.Add (name, res);
 315                         return eb;
 316                 }
 317
 318                 [ComVisible (true)]
 319                 public override Type GetType( string className) {
 320                         return GetType (className, false, false);
 321                 }
 322
 323                 [ComVisible (true)]
 324                 public override Type GetType( string className, bool ignoreCase) {
 325                         return GetType (className, false, ignoreCase);
 326                 }
 327
 328                 private TypeBuilder search_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 329                         int i;
 330                         for (i = 0; i < validElementsInArray; ++i) {
 331                                 if (String.Compare (className, arr [i].FullName, true, CultureInfo.InvariantCulture) == 0) {
 332                                         return arr [i];
 333                                 }
 334                         }
 335                         return null;
 336                 }
 337
 338                 private TypeBuilder search_nested_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 339                         int i;
 340                         for (i = 0; i < validElementsInArray; ++i) {
 341                                 if (String.Compare (className, arr [i].Name, true, CultureInfo.InvariantCulture) == 0)
 342                                         return arr [i];
 343                         }
 344                         return null;
 345                 }
 346
 347                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 348                 private static extern Type create_modified_type (TypeBuilder tb, string modifiers);
 349
 350                 static readonly char [] type_modifiers = {'&', '[', '*'};
 351
 352                 private TypeBuilder GetMaybeNested (TypeBuilder t, string className) {
 353                         int subt;
 354                         string pname, rname;
 355
 356                         subt = className.IndexOf ('+');
 357                         if (subt < 0) {
 358                                 if (t.subtypes != null)
 359                                         return search_nested_in_array (t.subtypes, t.subtypes.Length, className);
 360                                 return null;
 361                         }
 362                         if (t.subtypes != null) {
 363                                 pname = className.Substring (0, subt);
 364                                 rname = className.Substring (subt + 1);
 365                                 TypeBuilder result = search_nested_in_array (t.subtypes, t.subtypes.Length, pname);
 366                                 if (result != null)
 367                                         return GetMaybeNested (result, rname);
 368                         }
 369                         return null;
 370                 }
 371
 372                 [ComVisible (true)]
 373                 public override Type GetType (string className, bool throwOnError, bool ignoreCase)
 374                 {
 375                         if (className == null)
 376                                 throw new ArgumentNullException ("className");
 377                         if (className.Length == 0)
 378                                 throw new ArgumentException ("className");
 379
 380                         int subt;
 381                         string orig = className;
 382                         string modifiers;
 383                         TypeBuilder result = null;
 384
 385                         if (types == null && throwOnError)
 386                                 throw new TypeLoadException (className);
 387
 388                         subt = className.IndexOfAny (type_modifiers);
 389                         if (subt >= 0) {
 390                                 modifiers = className.Substring (subt);
 391                                 className = className.Substring (0, subt);
 392                         } else
 393                                 modifiers = null;
 394
 395                         if (!ignoreCase) {
 396                                 result =  name_cache [className] as TypeBuilder;
 397                         } else {
 398                                 subt = className.IndexOf ('+');
 399                                 if (subt < 0) {
 400                                         if (types != null)
 401                                                 result = search_in_array (types, num_types,  className);
 402                                 } else {
 403                                         string pname, rname;
 404                                         pname = className.Substring (0, subt);
 405                                         rname = className.Substring (subt + 1);
 406                                         result = search_in_array (types, num_types, pname);
 407                                         if (result != null)
 408                                                 result = GetMaybeNested (result, rname);
 409                                 }
 410                         }
 411                         if ((result == null) && throwOnError)
 412                                 throw new TypeLoadException (orig);
 413                         if (result != null && (modifiers != null)) {
 414                                 Type mt = create_modified_type (result, modifiers);
 415                                 result = mt as TypeBuilder;
 416                                 if (result == null)
 417                                         return mt;
 418                         }
 419                         if (result != null && result.is_created)
 420                                 return result.CreateType ();
 421                         else
 422                                 return result;
 423                 }
 424
 425                 internal int get_next_table_index (object obj, int table, bool inc) {
 426                         if (table_indexes == null) {
 427                                 table_indexes = new int [64];
 428                                 for (int i=0; i < 64; ++i)
 429                                         table_indexes [i] = 1;
 430                                 /* allow room for .<Module> in TypeDef table */
 431                                 table_indexes [0x02] = 2;
 432                         }
 433                         // Console.WriteLine ("getindex for table "+table.ToString()+" got "+table_indexes [table].ToString());
 434                         if (inc)
 435                                 return table_indexes [table]++;
 436                         return table_indexes [table];
 437                 }
 438
 439                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 440                         if (cattrs != null) {
 441                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 442                                 cattrs.CopyTo (new_array, 0);
 443                                 new_array [cattrs.Length] = customBuilder;
 444                                 cattrs = new_array;
 445                         } else {
 446                                 cattrs = new CustomAttributeBuilder [1];
 447                                 cattrs [0] = customBuilder;
 448                         }
 449                 }
 450
 451                 [ComVisible (true)]
 452                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 453                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 454                 }
 455
 456                 public ISymbolWriter GetSymWriter () {
 457                         return symbolWriter;
 458                 }
 459
 460                 public ISymbolDocumentWriter DefineDocument (string url, Guid language, Guid languageVendor, Guid documentType)
 461                 {
 462                         if (symbolWriter != null)
 463                                 return symbolWriter.DefineDocument (url, language, languageVendor, documentType);
 464                         else
 465                                 return null;
 466                 }
 467
 468                 public override Type [] GetTypes ()
 469                 {
 470                         if (types == null)
 471                                 return Type.EmptyTypes;
 472
 473                         int n = num_types;
 474                         Type [] copy = new Type [n];
 475                         Array.Copy (types, copy, n);
 476
 477                         // MS replaces the typebuilders with their created types
 478                         for (int i = 0; i < copy.Length; ++i)
 479                                 if (types [i].is_created)
 480                                         copy [i] = types [i].CreateType ();
 481
 482                         return copy;
 483                 }
 484
 485                 public IResourceWriter DefineResource (string name, string description, ResourceAttributes attribute)
 486                 {
 487                         if (name == null)
 488                                 throw new ArgumentNullException ("name");
 489                         if (name == String.Empty)
 490                                 throw new ArgumentException ("name cannot be empty");
 491                         if (transient)
 492                                 throw new InvalidOperationException ("The module is transient");
 493                         if (!assemblyb.IsSave)
 494                                 throw new InvalidOperationException ("The assembly is transient");
 495                         ResourceWriter writer = new ResourceWriter (new MemoryStream ());
 496                         if (resource_writers == null)
 497                                 resource_writers = new Hashtable ();
 498                         resource_writers [name] = writer;
 499
 500                         // The data is filled out later
 501                         if (resources != null) {
 502                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 503                                 System.Array.Copy(resources, new_r, resources.Length);
 504                                 resources = new_r;
 505                         } else {
 506                                 resources = new MonoResource [1];
 507                         }
 508                         int p = resources.Length - 1;
 509                         resources [p].name = name;
 510                         resources [p].attrs = attribute;
 511
 512                         return writer;
 513                 }
 514
 515                 public IResourceWriter DefineResource (string name, string description)
 516                 {
 517                         return DefineResource (name, description, ResourceAttributes.Public);
 518                 }
 519
 520                 [MonoTODO]
 521                 public void DefineUnmanagedResource (byte[] resource)
 522                 {
 523                         if (resource == null)
 524                                 throw new ArgumentNullException ("resource");
 525
 526                         throw new NotImplementedException ();
 527                 }
 528
 529                 [MonoTODO]
 530                 public void DefineUnmanagedResource (string resourceFileName)
 531                 {
 532                         if (resourceFileName == null)
 533                                 throw new ArgumentNullException ("resourceFileName");
 534                         if (resourceFileName == String.Empty)
 535                                 throw new ArgumentException ("resourceFileName");
 536                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 537                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exists or is a directory.");
 538
 539                         throw new NotImplementedException ();
 540                 }
 541
 542                 public void DefineManifestResource (string name, Stream stream, ResourceAttributes attribute) {
 543                         if (name == null)
 544                                 throw new ArgumentNullException ("name");
 545                         if (name == String.Empty)
 546                                 throw new ArgumentException ("name cannot be empty");
 547                         if (stream == null)
 548                                 throw new ArgumentNullException ("stream");
 549                         if (transient)
 550                                 throw new InvalidOperationException ("The module is transient");
 551                         if (!assemblyb.IsSave)
 552                                 throw new InvalidOperationException ("The assembly is transient");
 553
 554                         if (resources != null) {
 555                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 556                                 System.Array.Copy(resources, new_r, resources.Length);
 557                                 resources = new_r;
 558                         } else {
 559                                 resources = new MonoResource [1];
 560                         }
 561                         int p = resources.Length - 1;
 562                         resources [p].name = name;
 563                         resources [p].attrs = attribute;
 564                         resources [p].stream = stream;
 565                 }
 566
 567                 [MonoTODO]
 568                 public void SetSymCustomAttribute (string name, byte[] data)
 569                 {
 570                         throw new NotImplementedException ();
 571                 }
 572
 573                 [MonoTODO]
 574                 public void SetUserEntryPoint (MethodInfo entryPoint)
 575                 {
 576                         if (entryPoint == null)
 577                                 throw new ArgumentNullException ("entryPoint");
 578                         if (entryPoint.DeclaringType.Module != this)
 579                                 throw new InvalidOperationException ("entryPoint is not contained in this module");
 580                         throw new NotImplementedException ();
 581                 }
 582
 583                 public MethodToken GetMethodToken (MethodInfo method)
 584                 {
 585                         if (method == null)
 586                                 throw new ArgumentNullException ("method");
 587                         if (method.DeclaringType.Module != this)
 588                                 throw new InvalidOperationException ("The method is not in this module");
 589                         return new MethodToken (GetToken (method));
 590                 }
 591
 592                 public MethodToken GetArrayMethodToken (Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes)
 593                 {
 594                         return GetMethodToken (GetArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes));
 595                 }
 596
 597                 [ComVisible (true)]
 598                 public MethodToken GetConstructorToken (ConstructorInfo con)
 599                 {
 600                         if (con == null)
 601                                 throw new ArgumentNullException ("con");
 602                         if (con.DeclaringType.Module != this)
 603                                 throw new InvalidOperationException ("The constructor is not in this module");
 604                         return new MethodToken (GetToken (con));
 605                 }
 606
 607                 public FieldToken GetFieldToken (FieldInfo field)
 608                 {
 609                         if (field == null)
 610                                 throw new ArgumentNullException ("field");
 611                         if (field.DeclaringType.Module != this)
 612                                 throw new InvalidOperationException ("The method is not in this module");
 613                         return new FieldToken (GetToken (field));
 614                 }
 615
 616                 [MonoTODO]
 617                 public SignatureToken GetSignatureToken (byte[] sigBytes, int sigLength)
 618                 {
 619                         throw new NotImplementedException ();
 620                 }
 621
 622                 public SignatureToken GetSignatureToken (SignatureHelper sigHelper)
 623                 {
 624                         if (sigHelper == null)
 625                                 throw new ArgumentNullException ("sigHelper");
 626                         return new SignatureToken (GetToken (sigHelper));
 627                 }
 628
 629                 public StringToken GetStringConstant (string str)
 630                 {
 631                         if (str == null)
 632                                 throw new ArgumentNullException ("str");
 633                         return new StringToken (GetToken (str));
 634                 }
 635
 636                 public TypeToken GetTypeToken (Type type)
 637                 {
 638                         if (type == null)
 639                                 throw new ArgumentNullException ("type");
 640                         if (type.IsByRef)
 641                                 throw new ArgumentException ("type can't be a byref type", "type");
 642                         if (!IsTransient () && (type.Module is ModuleBuilder) && ((ModuleBuilder)type.Module).IsTransient ())
 643                                 throw new InvalidOperationException ("a non-transient module can't reference a transient module");
 644                         return new TypeToken (GetToken (type));
 645                 }
 646
 647                 public TypeToken GetTypeToken (string name)
 648                 {
 649                         return GetTypeToken (GetType (name));
 650                 }
 651
 652                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 653                 private static extern int getUSIndex (ModuleBuilder mb, string str);
 654
 655                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 656                 private static extern int getToken (ModuleBuilder mb, object obj, bool create_open_instance);
 657
 658                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 659                 private static extern int getMethodToken (ModuleBuilder mb, MethodBase method,
 660                                                           Type[] opt_param_types);
 661
 662                 internal int GetToken (string str)
 663                 {
 664                         int result;
 665                         if (!us_string_cache.TryGetValue (str, out result)) {
 666                                 result = getUSIndex (this, str);
 667                                 us_string_cache [str] = result;
 668                         }
 669
 670                         return result;
 671                 }
 672
 673                 internal int GetToken (MemberInfo member) {
 674                         return getToken (this, member, true);
 675                 }
 676
 677                 internal int GetToken (MemberInfo member, bool create_open_instance) {
 678                         return getToken (this, member, create_open_instance);
 679                 }
 680
 681                 internal int GetToken (MethodBase method, Type[] opt_param_types) {
 682                         return getMethodToken (this, method, opt_param_types);
 683                 }
 684
 685                 internal int GetToken (SignatureHelper helper) {
 686                         return getToken (this, helper, true);
 687                 }
 688
 689                 /*
 690                  * Register the token->obj mapping with the runtime so the Module.Resolve...
 691                  * methods will work for obj.
 692                  */
 693                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 694                 internal extern void RegisterToken (object obj, int token);
 695
 696                 internal TokenGenerator GetTokenGenerator () {
 697                         if (token_gen == null)
 698                                 token_gen = new ModuleBuilderTokenGenerator (this);
 699                         return token_gen;
 700                 }
 701
 702                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 703                 private static extern void build_metadata (ModuleBuilder mb);
 704
 705                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 706                 private extern void WriteToFile (IntPtr handle);
 707
 708                 internal void Save ()
 709                 {
 710                         if (transient && !is_main)
 711                                 return;
 712
 713                         if (types != null) {
 714                                 for (int i = 0; i < num_types; ++i)
 715                                         if (!types [i].is_created)
 716                                                 throw new NotSupportedException ("Type '" + types [i].FullName + "' was not completed.");
 717                         }
 718
 719                         if ((global_type != null) && (global_type_created == null))
 720                                 global_type_created = global_type.CreateType ();
 721
 722                         if (resources != null) {
 723                                 for (int i = 0; i < resources.Length; ++i) {
 724                                         IResourceWriter rwriter;
 725                                         if (resource_writers != null && (rwriter = resource_writers [resources [i].name] as IResourceWriter) != null) {
 726                                                 ResourceWriter writer = (ResourceWriter)rwriter;
 727                                                 writer.Generate ();
 728                                                 MemoryStream mstream = (MemoryStream)writer.Stream;
 729                                                 resources [i].data = new byte [mstream.Length];
 730                                                 mstream.Seek (0, SeekOrigin.Begin);
 731                                                 mstream.Read (resources [i].data, 0, (int)mstream.Length);
 732                                                 continue;
 733                                         }
 734                                         Stream stream = resources [i].stream;
 735
 736                                         // According to MSDN docs, the stream is read during assembly save, not earlier
 737                                         if (stream != null) {
 738                                                 try {
 739                                                         long len = stream.Length;
 740                                                         resources [i].data = new byte [len];
 741                                                         stream.Seek (0, SeekOrigin.Begin);
 742                                                         stream.Read (resources [i].data, 0, (int)len);
 743                                                 } catch {
 744                                                         /* do something */
 745                                                 }
 746                                         }
 747                                 }
 748                         }
 749
 750                         build_metadata (this);
 751
 752                         string fileName = fqname;
 753                         if (assemblyb.AssemblyDir != null)
 754                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 755
 756                         try {
 757                                 // We mmap the file, so unlink the previous version since it may be in use
 758                                 File.Delete (fileName);
 759                         } catch {
 760                                 // We can safely ignore
 761                         }
 762                         using (FileStream file = new FileStream (fileName, FileMode.Create, FileAccess.Write))
 763                                 WriteToFile (file.Handle);
 764
 765                         //
 766                         // The constant 0x80000000 is internal to Mono, it means `make executable'
 767                         //
 768                         File.SetAttributes (fileName, (FileAttributes) (unchecked ((int) 0x80000000)));
 769
 770                         if (types != null && symbolWriter != null) {
 771                                 for (int i = 0; i < num_types; ++i)
 772                                         types [i].GenerateDebugInfo (symbolWriter);
 773                                 symbolWriter.Close ();
 774                         }
 775                 }
 776
 777                 internal string FileName {
 778                         get {
 779                                 return fqname;
 780                         }
 781                 }
 782
 783                 internal bool IsMain {
 784                         set {
 785                                 is_main = value;
 786                         }
 787                 }
 788
 789                 internal void CreateGlobalType () {
 790                         if (global_type == null)
 791                                 global_type = new TypeBuilder (this, 0, 1);
 792                 }
 793
 794                 internal override Guid GetModuleVersionId ()
 795                 {
 796                         return new Guid (guid);
 797                 }
 798
 799                 // Used by mcs, the symbol writer, and mdb through reflection
 800                 internal static Guid Mono_GetGuid (ModuleBuilder mb)
 801                 {
 802                         return mb.GetModuleVersionId ();
 803                 }
 804
 805                 void _ModuleBuilder.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 806                 {
 807                         throw new NotImplementedException ();
 808                 }
 809
 810                 void _ModuleBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 811                 {
 812                         throw new NotImplementedException ();
 813                 }
 814
 815                 void _ModuleBuilder.GetTypeInfoCount (out uint pcTInfo)
 816                 {
 817                         throw new NotImplementedException ();
 818                 }
 819
 820                 void _ModuleBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 821                 {
 822                         throw new NotImplementedException ();
 823                 }
 824
 825 #if NET_4_0
 826                 public override Assembly Assembly {
 827                         get { return assemblyb; }
 828                 }
 829
 830                 public override string Name {
 831                         get { return name; }
 832                 }
 833
 834                 public override string ScopeName {
 835                         get { return name; }
 836                 }
 837
 838                 public override Guid ModuleVersionId {
 839                         get {
 840                                 return GetModuleVersionId ();
 841                         }
 842                 }
 843
 844                 //XXX resource modules can't be defined with ModuleBuilder
 845                 public override bool IsResource ()
 846                 {
 847                         return false;
 848                 }
 849
 850                 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
 851                 {
 852                         if (global_type_created == null)
 853                                 return null;
 854                         if (types == null)
 855                                 return global_type_created.GetMethod (name);
 856                         return global_type_created.GetMethod (name, bindingAttr, binder, callConvention, types, modifiers);
 857                 }
 858
 859                 public override FieldInfo ResolveField (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 860                         ResolveTokenError error;
 861
 862                         IntPtr handle = ResolveFieldToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 863                         if (handle == IntPtr.Zero)
 864                                 throw resolve_token_exception (metadataToken, error, "Field");
 865                         else
 866                                 return FieldInfo.GetFieldFromHandle (new RuntimeFieldHandle (handle));
 867                 }
 868
 869                 public override MemberInfo ResolveMember (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 870
 871                         ResolveTokenError error;
 872
 873                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 874                         if (m == null)
 875                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
 876                         else
 877                                 return m;
 878                 }
 879
 880                 public override MethodBase ResolveMethod (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 881                         ResolveTokenError error;
 882
 883                         IntPtr handle = ResolveMethodToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 884                         if (handle == IntPtr.Zero)
 885                                 throw resolve_token_exception (metadataToken, error, "MethodBase");
 886                         else
 887                                 return MethodBase.GetMethodFromHandleNoGenericCheck (new RuntimeMethodHandle (handle));
 888                 }
 889
 890                 public override string ResolveString (int metadataToken) {
 891                         ResolveTokenError error;
 892
 893                         string s = ResolveStringToken (_impl, metadataToken, out error);
 894                         if (s == null)
 895                                 throw resolve_token_exception (metadataToken, error, "string");
 896                         else
 897                                 return s;
 898                 }
 899
 900                 public override byte[] ResolveSignature (int metadataToken) {
 901                         ResolveTokenError error;
 902
 903                     byte[] res = ResolveSignature (_impl, metadataToken, out error);
 904                         if (res == null)
 905                                 throw resolve_token_exception (metadataToken, error, "signature");
 906                         else
 907                                 return res;
 908                 }
 909
 910                 public override Type ResolveType (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 911                         ResolveTokenError error;
 912
 913                         IntPtr handle = ResolveTypeToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 914                         if (handle == IntPtr.Zero)
 915                                 throw resolve_token_exception (metadataToken, error, "Type");
 916                         else
 917                                 return Type.GetTypeFromHandle (new RuntimeTypeHandle (handle));
 918                 }
 919
 920                 public override bool Equals (object obj)
 921                 {
 922                         return base.Equals (obj);
 923                 }
 924
 925                 public override int GetHashCode ()
 926                 {
 927                         return base.GetHashCode ();
 928                 }
 929
 930                 public override bool IsDefined (Type attributeType, bool inherit)
 931                 {
 932                         return base.IsDefined (attributeType, inherit);
 933                 }
 934
 935                 public override object[] GetCustomAttributes (bool inherit)
 936                 {
 937                         return base.GetCustomAttributes (inherit);
 938                 }
 939
 940                 public override object[] GetCustomAttributes (Type attributeType, bool inherit)
 941                 {
 942                         return base.GetCustomAttributes (attributeType, inherit);
 943                 }
 944
 945                 public override FieldInfo GetField (string name, BindingFlags bindingAttr)
 946                 {
 947                         return base.GetField (name, bindingAttr);
 948                 }
 949
 950                 public override FieldInfo[] GetFields (BindingFlags bindingFlags)
 951                 {
 952                         return base.GetFields (bindingFlags);
 953                 }
 954
 955                 public override MethodInfo[] GetMethods (BindingFlags bindingFlags)
 956                 {
 957                         return base.GetMethods (bindingFlags);
 958                 }
 959
 960                 public override int MetadataToken {
 961                         get {
 962                                 return base.MetadataToken;
 963                         }
 964                 }
 965 #endif
 966         }
 967
 968         internal class ModuleBuilderTokenGenerator : TokenGenerator {
 969
 970                 private ModuleBuilder mb;
 971
 972                 public ModuleBuilderTokenGenerator (ModuleBuilder mb) {
 973                         this.mb = mb;
 974                 }
 975
 976                 public int GetToken (string str) {
 977                         return mb.GetToken (str);
 978                 }
 979
 980                 public int GetToken (MemberInfo member, bool create_open_instance) {
 981                         return mb.GetToken (member, create_open_instance);
 982                 }
 983
 984                 public int GetToken (MethodBase method, Type[] opt_param_types) {
 985                         return mb.GetToken (method, opt_param_types);
 986                 }
 987
 988                 public int GetToken (SignatureHelper helper) {
 989                         return mb.GetToken (helper);
 990                 }
 991         }
 992 }
 993
 994 #endif