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         [StructLayout (LayoutKind.Sequential)]
  50         public class ModuleBuilder : Module, _ModuleBuilder {
  51
  52 #pragma warning disable 169, 414
  53                 #region Sync with object-internals.h
  54                 private UIntPtr dynamic_image; /* GC-tracked */
  55                 private int num_types;
  56                 private TypeBuilder[] types;
  57                 private CustomAttributeBuilder[] cattrs;
  58                 private byte[] guid;
  59                 private int table_idx;
  60                 internal AssemblyBuilder assemblyb;
  61                 private MethodBuilder[] global_methods;
  62                 private FieldBuilder[] global_fields;
  63                 bool is_main;
  64                 private MonoResource[] resources;
  65                 #endregion
  66 #pragma warning restore 169, 414
  67
  68                 private TypeBuilder global_type;
  69                 private Type global_type_created;
  70                 Hashtable name_cache;
  71                 Dictionary<string, int> us_string_cache;
  72                 private int[] table_indexes;
  73                 bool transient;
  74                 ModuleBuilderTokenGenerator token_gen;
  75                 Hashtable resource_writers;
  76                 ISymbolWriter symbolWriter;
  77
  78                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  79                 private static extern void basic_init (ModuleBuilder ab);
  80
  81                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  82                 private static extern void set_wrappers_type (ModuleBuilder mb, Type ab);
  83
  84                 internal ModuleBuilder (AssemblyBuilder assb, string name, string fullyqname, bool emitSymbolInfo, bool transient) {
  85                         this.name = this.scopename = name;
  86                         this.fqname = fullyqname;
  87                         this.assembly = this.assemblyb = assb;
  88                         this.transient = transient;
  89                         // to keep mcs fast we do not want CryptoConfig wo be involved to create the RNG
  90                         guid = Guid.FastNewGuidArray ();
  91                         // guid = Guid.NewGuid().ToByteArray ();
  92                         table_idx = get_next_table_index (this, 0x00, true);
  93                         name_cache = new Hashtable ();
  94                         us_string_cache = new Dictionary<string, int> (512);
  95
  96                         basic_init (this);
  97
  98                         CreateGlobalType ();
  99
 100                         if (assb.IsRun) {
 101                                 TypeBuilder tb = new TypeBuilder (this, TypeAttributes.Abstract, 0xFFFFFF); /*last valid token*/
 102                                 Type type = tb.CreateType ();
 103                                 set_wrappers_type (this, type);
 104                         }
 105
 106                         if (emitSymbolInfo) {
 107 #if MOONLIGHT
 108                                 symbolWriter = new Mono.CompilerServices.SymbolWriter.SymbolWriterImpl (this);
 109 #else
 110                                 Assembly asm = Assembly.LoadWithPartialName ("Mono.CompilerServices.SymbolWriter");
 111                                 if (asm == null)
 112                                         throw new TypeLoadException ("The assembly for default symbol writer cannot be loaded");
 113
 114                                 Type t = asm.GetType ("Mono.CompilerServices.SymbolWriter.SymbolWriterImpl", true);
 115                                 symbolWriter = (ISymbolWriter) Activator.CreateInstance (t, new object[] { this });
 116 #endif
 117                                 string fileName = fqname;
 118                                 if (assemblyb.AssemblyDir != null)
 119                                         fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 120                                 symbolWriter.Initialize (IntPtr.Zero, fileName, true);
 121                         }
 122                 }
 123
 124                 public override string FullyQualifiedName {get { return fqname;}}
 125
 126                 public bool IsTransient () {
 127                         return transient;
 128                 }
 129
 130                 public void CreateGlobalFunctions ()
 131                 {
 132                         if (global_type_created != null)
 133                                 throw new InvalidOperationException ("global methods already created");
 134                         if (global_type != null)
 135                                 global_type_created = global_type.CreateType ();
 136                 }
 137
 138                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 139                         if (data == null)
 140                                 throw new ArgumentNullException ("data");
 141
 142                         FieldBuilder fb = DefineUninitializedData (name, data.Length,
 143                                                                                                            attributes | FieldAttributes.HasFieldRVA);
 144                         fb.SetRVAData (data);
 145
 146                         return fb;
 147                 }
 148
 149                 public FieldBuilder DefineUninitializedData (string name, int size, FieldAttributes attributes)
 150                 {
 151                         if (name == null)
 152                                 throw new ArgumentNullException ("name");
 153                         if (global_type_created != null)
 154                                 throw new InvalidOperationException ("global fields already created");
 155                         if ((size <= 0) || (size > 0x3f0000))
 156                                 throw new ArgumentException ("size", "Data size must be > 0 and < 0x3f0000");
 157
 158                         CreateGlobalType ();
 159
 160                         string typeName = "$ArrayType$" + size;
 161                         Type datablobtype = GetType (typeName, false, false);
 162                         if (datablobtype == null) {
 163                                 TypeBuilder tb = DefineType (typeName,
 164                                     TypeAttributes.Public|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 165                                         assemblyb.corlib_value_type, null, PackingSize.Size1, size);
 166                                 tb.CreateType ();
 167                                 datablobtype = tb;
 168                         }
 169                         FieldBuilder fb = global_type.DefineField (name, datablobtype, attributes|FieldAttributes.Static);
 170
 171                         if (global_fields != null) {
 172                                 FieldBuilder[] new_fields = new FieldBuilder [global_fields.Length+1];
 173                                 System.Array.Copy (global_fields, new_fields, global_fields.Length);
 174                                 new_fields [global_fields.Length] = fb;
 175                                 global_fields = new_fields;
 176                         } else {
 177                                 global_fields = new FieldBuilder [1];
 178                                 global_fields [0] = fb;
 179                         }
 180                         return fb;
 181                 }
 182
 183                 private void addGlobalMethod (MethodBuilder mb) {
 184                         if (global_methods != null) {
 185                                 MethodBuilder[] new_methods = new MethodBuilder [global_methods.Length+1];
 186                                 System.Array.Copy (global_methods, new_methods, global_methods.Length);
 187                                 new_methods [global_methods.Length] = mb;
 188                                 global_methods = new_methods;
 189                         } else {
 190                                 global_methods = new MethodBuilder [1];
 191                                 global_methods [0] = mb;
 192                         }
 193                 }
 194
 195                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes)
 196                 {
 197                         return DefineGlobalMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 198                 }
 199
 200                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 201                         return DefineGlobalMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 202                 }
 203
 204                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] requiredReturnTypeCustomModifiers, Type[] optionalReturnTypeCustomModifiers, Type[] parameterTypes, Type[][] requiredParameterTypeCustomModifiers, Type[][] optionalParameterTypeCustomModifiers)
 205                 {
 206                         if (name == null)
 207                                 throw new ArgumentNullException ("name");
 208                         if ((attributes & MethodAttributes.Static) == 0)
 209                                 throw new ArgumentException ("global methods must be static");
 210                         if (global_type_created != null)
 211                                 throw new InvalidOperationException ("global methods already created");
 212                         CreateGlobalType ();
 213                         MethodBuilder mb = global_type.DefineMethod (name, attributes, callingConvention, returnType, requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers, parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterTypeCustomModifiers);
 214
 215                         addGlobalMethod (mb);
 216                         return mb;
 217                 }
 218
 219                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 220                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 221                 }
 222
 223                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 224                         if (name == null)
 225                                 throw new ArgumentNullException ("name");
 226                         if ((attributes & MethodAttributes.Static) == 0)
 227                                 throw new ArgumentException ("global methods must be static");
 228                         if (global_type_created != null)
 229                                 throw new InvalidOperationException ("global methods already created");
 230                         CreateGlobalType ();
 231                         MethodBuilder mb = global_type.DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 232
 233                         addGlobalMethod (mb);
 234                         return mb;
 235                 }
 236
 237                 public TypeBuilder DefineType (string name) {
 238                         return DefineType (name, 0);
 239                 }
 240
 241                 public TypeBuilder DefineType (string name, TypeAttributes attr) {
 242                         if ((attr & TypeAttributes.Interface) != 0)
 243                                 return DefineType (name, attr, null, null);
 244                         return DefineType (name, attr, typeof(object), null);
 245                 }
 246
 247                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent) {
 248                         return DefineType (name, attr, parent, null);
 249                 }
 250
 251                 private void AddType (TypeBuilder tb)
 252                 {
 253                         if (types != null) {
 254                                 if (types.Length == num_types) {
 255                                         TypeBuilder[] new_types = new TypeBuilder [types.Length * 2];
 256                                         System.Array.Copy (types, new_types, num_types);
 257                                         types = new_types;
 258                                 }
 259                         } else {
 260                                 types = new TypeBuilder [1];
 261                         }
 262                         types [num_types] = tb;
 263                         num_types ++;
 264                 }
 265
 266                 private TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packingSize, int typesize) {
 267                         if (name == null)
 268                                 throw new ArgumentNullException ("fullname");
 269                         if (name_cache.ContainsKey (name))
 270                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 271                         TypeBuilder res = new TypeBuilder (this, name, attr, parent, interfaces, packingSize, typesize, null);
 272                         AddType (res);
 273
 274                         name_cache.Add (name, res);
 275
 276                         return res;
 277                 }
 278
 279                 internal void RegisterTypeName (TypeBuilder tb, string name)
 280                 {
 281                         name_cache.Add (name, tb);
 282                 }
 283
 284                 internal TypeBuilder GetRegisteredType (string name)
 285                 {
 286                         return (TypeBuilder) name_cache [name];
 287                 }
 288
 289                 [ComVisible (true)]
 290                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 291                         return DefineType (name, attr, parent, interfaces, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 292                 }
 293
 294                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, int typesize) {
 295                         return DefineType (name, attr, parent, null, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 296                 }
 297
 298                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 299                         return DefineType (name, attr, parent, null, packsize, TypeBuilder.UnspecifiedTypeSize);
 300                 }
 301
 302                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packingSize, int typesize) {
 303                         return DefineType (name, attr, parent, null, packingSize, typesize);
 304                 }
 305
 306                 public MethodInfo GetArrayMethod( Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 307                         return new MonoArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes);
 308                 }
 309
 310                 public EnumBuilder DefineEnum( string name, TypeAttributes visibility, Type underlyingType) {
 311                         if (name_cache.Contains (name))
 312                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 313
 314                         EnumBuilder eb = new EnumBuilder (this, name, visibility, underlyingType);
 315                         TypeBuilder res = eb.GetTypeBuilder ();
 316                         AddType (res);
 317                         name_cache.Add (name, res);
 318                         return eb;
 319                 }
 320
 321                 [ComVisible (true)]
 322                 public override Type GetType( string className) {
 323                         return GetType (className, false, false);
 324                 }
 325
 326                 [ComVisible (true)]
 327                 public override Type GetType( string className, bool ignoreCase) {
 328                         return GetType (className, false, ignoreCase);
 329                 }
 330
 331                 private TypeBuilder search_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 332                         int i;
 333                         for (i = 0; i < validElementsInArray; ++i) {
 334                                 if (String.Compare (className, arr [i].FullName, true, CultureInfo.InvariantCulture) == 0) {
 335                                         return arr [i];
 336                                 }
 337                         }
 338                         return null;
 339                 }
 340
 341                 private TypeBuilder search_nested_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 342                         int i;
 343                         for (i = 0; i < validElementsInArray; ++i) {
 344                                 if (String.Compare (className, arr [i].Name, true, CultureInfo.InvariantCulture) == 0)
 345                                         return arr [i];
 346                         }
 347                         return null;
 348                 }
 349
 350                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 351                 private static extern Type create_modified_type (TypeBuilder tb, string modifiers);
 352
 353                 static readonly char [] type_modifiers = {'&', '[', '*'};
 354
 355                 private TypeBuilder GetMaybeNested (TypeBuilder t, string className) {
 356                         int subt;
 357                         string pname, rname;
 358
 359                         subt = className.IndexOf ('+');
 360                         if (subt < 0) {
 361                                 if (t.subtypes != null)
 362                                         return search_nested_in_array (t.subtypes, t.subtypes.Length, className);
 363                                 return null;
 364                         }
 365                         if (t.subtypes != null) {
 366                                 pname = className.Substring (0, subt);
 367                                 rname = className.Substring (subt + 1);
 368                                 TypeBuilder result = search_nested_in_array (t.subtypes, t.subtypes.Length, pname);
 369                                 if (result != null)
 370                                         return GetMaybeNested (result, rname);
 371                         }
 372                         return null;
 373                 }
 374
 375                 [ComVisible (true)]
 376                 public override Type GetType (string className, bool throwOnError, bool ignoreCase)
 377                 {
 378                         if (className == null)
 379                                 throw new ArgumentNullException ("className");
 380                         if (className.Length == 0)
 381                                 throw new ArgumentException ("className");
 382
 383                         int subt;
 384                         string orig = className;
 385                         string modifiers;
 386                         TypeBuilder result = null;
 387
 388                         if (types == null && throwOnError)
 389                                 throw new TypeLoadException (className);
 390
 391                         subt = className.IndexOfAny (type_modifiers);
 392                         if (subt >= 0) {
 393                                 modifiers = className.Substring (subt);
 394                                 className = className.Substring (0, subt);
 395                         } else
 396                                 modifiers = null;
 397
 398                         if (!ignoreCase) {
 399                                 result =  name_cache [className] as TypeBuilder;
 400                         } else {
 401                                 subt = className.IndexOf ('+');
 402                                 if (subt < 0) {
 403                                         if (types != null)
 404                                                 result = search_in_array (types, num_types,  className);
 405                                 } else {
 406                                         string pname, rname;
 407                                         pname = className.Substring (0, subt);
 408                                         rname = className.Substring (subt + 1);
 409                                         result = search_in_array (types, num_types, pname);
 410                                         if (result != null)
 411                                                 result = GetMaybeNested (result, rname);
 412                                 }
 413                         }
 414                         if ((result == null) && throwOnError)
 415                                 throw new TypeLoadException (orig);
 416                         if (result != null && (modifiers != null)) {
 417                                 Type mt = create_modified_type (result, modifiers);
 418                                 result = mt as TypeBuilder;
 419                                 if (result == null)
 420                                         return mt;
 421                         }
 422                         if (result != null && result.is_created)
 423                                 return result.CreateType ();
 424                         else
 425                                 return result;
 426                 }
 427
 428                 internal int get_next_table_index (object obj, int table, bool inc) {
 429                         if (table_indexes == null) {
 430                                 table_indexes = new int [64];
 431                                 for (int i=0; i < 64; ++i)
 432                                         table_indexes [i] = 1;
 433                                 /* allow room for .<Module> in TypeDef table */
 434                                 table_indexes [0x02] = 2;
 435                         }
 436                         // Console.WriteLine ("getindex for table "+table.ToString()+" got "+table_indexes [table].ToString());
 437                         if (inc)
 438                                 return table_indexes [table]++;
 439                         return table_indexes [table];
 440                 }
 441
 442                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 443                         if (cattrs != null) {
 444                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 445                                 cattrs.CopyTo (new_array, 0);
 446                                 new_array [cattrs.Length] = customBuilder;
 447                                 cattrs = new_array;
 448                         } else {
 449                                 cattrs = new CustomAttributeBuilder [1];
 450                                 cattrs [0] = customBuilder;
 451                         }
 452                 }
 453
 454                 [ComVisible (true)]
 455                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 456                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 457                 }
 458
 459                 public ISymbolWriter GetSymWriter () {
 460                         return symbolWriter;
 461                 }
 462
 463                 public ISymbolDocumentWriter DefineDocument (string url, Guid language, Guid languageVendor, Guid documentType)
 464                 {
 465                         if (symbolWriter != null)
 466                                 return symbolWriter.DefineDocument (url, language, languageVendor, documentType);
 467                         else
 468                                 return null;
 469                 }
 470
 471                 public override Type [] GetTypes ()
 472                 {
 473                         if (types == null)
 474                                 return Type.EmptyTypes;
 475
 476                         int n = num_types;
 477                         Type [] copy = new Type [n];
 478                         Array.Copy (types, copy, n);
 479
 480                         // MS replaces the typebuilders with their created types
 481                         for (int i = 0; i < copy.Length; ++i)
 482                                 if (types [i].is_created)
 483                                         copy [i] = types [i].CreateType ();
 484
 485                         return copy;
 486                 }
 487
 488                 public IResourceWriter DefineResource (string name, string description, ResourceAttributes attribute)
 489                 {
 490                         if (name == null)
 491                                 throw new ArgumentNullException ("name");
 492                         if (name == String.Empty)
 493                                 throw new ArgumentException ("name cannot be empty");
 494                         if (transient)
 495                                 throw new InvalidOperationException ("The module is transient");
 496                         if (!assemblyb.IsSave)
 497                                 throw new InvalidOperationException ("The assembly is transient");
 498                         ResourceWriter writer = new ResourceWriter (new MemoryStream ());
 499                         if (resource_writers == null)
 500                                 resource_writers = new Hashtable ();
 501                         resource_writers [name] = writer;
 502
 503                         // The data is filled out later
 504                         if (resources != null) {
 505                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 506                                 System.Array.Copy(resources, new_r, resources.Length);
 507                                 resources = new_r;
 508                         } else {
 509                                 resources = new MonoResource [1];
 510                         }
 511                         int p = resources.Length - 1;
 512                         resources [p].name = name;
 513                         resources [p].attrs = attribute;
 514
 515                         return writer;
 516                 }
 517
 518                 public IResourceWriter DefineResource (string name, string description)
 519                 {
 520                         return DefineResource (name, description, ResourceAttributes.Public);
 521                 }
 522
 523                 [MonoTODO]
 524                 public void DefineUnmanagedResource (byte[] resource)
 525                 {
 526                         if (resource == null)
 527                                 throw new ArgumentNullException ("resource");
 528
 529                         throw new NotImplementedException ();
 530                 }
 531
 532                 [MonoTODO]
 533                 public void DefineUnmanagedResource (string resourceFileName)
 534                 {
 535                         if (resourceFileName == null)
 536                                 throw new ArgumentNullException ("resourceFileName");
 537                         if (resourceFileName == String.Empty)
 538                                 throw new ArgumentException ("resourceFileName");
 539                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 540                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exists or is a directory.");
 541
 542                         throw new NotImplementedException ();
 543                 }
 544
 545                 public void DefineManifestResource (string name, Stream stream, ResourceAttributes attribute) {
 546                         if (name == null)
 547                                 throw new ArgumentNullException ("name");
 548                         if (name == String.Empty)
 549                                 throw new ArgumentException ("name cannot be empty");
 550                         if (stream == null)
 551                                 throw new ArgumentNullException ("stream");
 552                         if (transient)
 553                                 throw new InvalidOperationException ("The module is transient");
 554                         if (!assemblyb.IsSave)
 555                                 throw new InvalidOperationException ("The assembly is transient");
 556
 557                         if (resources != null) {
 558                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 559                                 System.Array.Copy(resources, new_r, resources.Length);
 560                                 resources = new_r;
 561                         } else {
 562                                 resources = new MonoResource [1];
 563                         }
 564                         int p = resources.Length - 1;
 565                         resources [p].name = name;
 566                         resources [p].attrs = attribute;
 567                         resources [p].stream = stream;
 568                 }
 569
 570                 [MonoTODO]
 571                 public void SetSymCustomAttribute (string name, byte[] data)
 572                 {
 573                         throw new NotImplementedException ();
 574                 }
 575
 576                 [MonoTODO]
 577                 public void SetUserEntryPoint (MethodInfo entryPoint)
 578                 {
 579                         if (entryPoint == null)
 580                                 throw new ArgumentNullException ("entryPoint");
 581                         if (entryPoint.DeclaringType.Module != this)
 582                                 throw new InvalidOperationException ("entryPoint is not contained in this module");
 583                         throw new NotImplementedException ();
 584                 }
 585
 586                 public MethodToken GetMethodToken (MethodInfo method)
 587                 {
 588                         if (method == null)
 589                                 throw new ArgumentNullException ("method");
 590                         if (method.DeclaringType.Module != this)
 591                                 throw new InvalidOperationException ("The method is not in this module");
 592                         return new MethodToken (GetToken (method));
 593                 }
 594
 595                 public MethodToken GetArrayMethodToken (Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes)
 596                 {
 597                         return GetMethodToken (GetArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes));
 598                 }
 599
 600                 [ComVisible (true)]
 601                 public MethodToken GetConstructorToken (ConstructorInfo con)
 602                 {
 603                         if (con == null)
 604                                 throw new ArgumentNullException ("con");
 605                         if (con.DeclaringType.Module != this)
 606                                 throw new InvalidOperationException ("The constructor is not in this module");
 607                         return new MethodToken (GetToken (con));
 608                 }
 609
 610                 public FieldToken GetFieldToken (FieldInfo field)
 611                 {
 612                         if (field == null)
 613                                 throw new ArgumentNullException ("field");
 614                         if (field.DeclaringType.Module != this)
 615                                 throw new InvalidOperationException ("The method is not in this module");
 616                         return new FieldToken (GetToken (field));
 617                 }
 618
 619                 [MonoTODO]
 620                 public SignatureToken GetSignatureToken (byte[] sigBytes, int sigLength)
 621                 {
 622                         throw new NotImplementedException ();
 623                 }
 624
 625                 public SignatureToken GetSignatureToken (SignatureHelper sigHelper)
 626                 {
 627                         if (sigHelper == null)
 628                                 throw new ArgumentNullException ("sigHelper");
 629                         return new SignatureToken (GetToken (sigHelper));
 630                 }
 631
 632                 public StringToken GetStringConstant (string str)
 633                 {
 634                         if (str == null)
 635                                 throw new ArgumentNullException ("str");
 636                         return new StringToken (GetToken (str));
 637                 }
 638
 639                 public TypeToken GetTypeToken (Type type)
 640                 {
 641                         if (type == null)
 642                                 throw new ArgumentNullException ("type");
 643                         if (type.IsByRef)
 644                                 throw new ArgumentException ("type can't be a byref type", "type");
 645                         if (!IsTransient () && (type.Module is ModuleBuilder) && ((ModuleBuilder)type.Module).IsTransient ())
 646                                 throw new InvalidOperationException ("a non-transient module can't reference a transient module");
 647                         return new TypeToken (GetToken (type));
 648                 }
 649
 650                 public TypeToken GetTypeToken (string name)
 651                 {
 652                         return GetTypeToken (GetType (name));
 653                 }
 654
 655                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 656                 private static extern int getUSIndex (ModuleBuilder mb, string str);
 657
 658                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 659                 private static extern int getToken (ModuleBuilder mb, object obj, bool create_open_instance);
 660
 661                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 662                 private static extern int getMethodToken (ModuleBuilder mb, MethodInfo method,
 663                                                           Type[] opt_param_types);
 664
 665                 internal int GetToken (string str)
 666                 {
 667                         int result;
 668                         if (!us_string_cache.TryGetValue (str, out result)) {
 669                                 result = getUSIndex (this, str);
 670                                 us_string_cache [str] = result;
 671                         }
 672
 673                         return result;
 674                 }
 675
 676                 internal int GetToken (MemberInfo member) {
 677                         return getToken (this, member, true);
 678                 }
 679
 680                 internal int GetToken (MemberInfo member, bool create_open_instance) {
 681                         return getToken (this, member, create_open_instance);
 682                 }
 683
 684                 internal int GetToken (MethodInfo method, Type[] opt_param_types) {
 685                         return getMethodToken (this, method, opt_param_types);
 686                 }
 687
 688                 internal int GetToken (SignatureHelper helper) {
 689                         return getToken (this, helper, true);
 690                 }
 691
 692                 /*
 693                  * Register the token->obj mapping with the runtime so the Module.Resolve...
 694                  * methods will work for obj.
 695                  */
 696                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 697                 internal extern void RegisterToken (object obj, int token);
 698
 699                 internal TokenGenerator GetTokenGenerator () {
 700                         if (token_gen == null)
 701                                 token_gen = new ModuleBuilderTokenGenerator (this);
 702                         return token_gen;
 703                 }
 704
 705                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 706                 private static extern void build_metadata (ModuleBuilder mb);
 707
 708                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 709                 private extern void WriteToFile (IntPtr handle);
 710
 711                 internal void Save ()
 712                 {
 713                         if (transient && !is_main)
 714                                 return;
 715
 716                         if (types != null) {
 717                                 for (int i = 0; i < num_types; ++i)
 718                                         if (!types [i].is_created)
 719                                                 throw new NotSupportedException ("Type '" + types [i].FullName + "' was not completed.");
 720                         }
 721
 722                         if ((global_type != null) && (global_type_created == null))
 723                                 global_type_created = global_type.CreateType ();
 724
 725                         if (resources != null) {
 726                                 for (int i = 0; i < resources.Length; ++i) {
 727                                         IResourceWriter rwriter;
 728                                         if (resource_writers != null && (rwriter = resource_writers [resources [i].name] as IResourceWriter) != null) {
 729                                                 ResourceWriter writer = (ResourceWriter)rwriter;
 730                                                 writer.Generate ();
 731                                                 MemoryStream mstream = (MemoryStream)writer.Stream;
 732                                                 resources [i].data = new byte [mstream.Length];
 733                                                 mstream.Seek (0, SeekOrigin.Begin);
 734                                                 mstream.Read (resources [i].data, 0, (int)mstream.Length);
 735                                                 continue;
 736                                         }
 737                                         Stream stream = resources [i].stream;
 738
 739                                         // According to MSDN docs, the stream is read during assembly save, not earlier
 740                                         if (stream != null) {
 741                                                 try {
 742                                                         long len = stream.Length;
 743                                                         resources [i].data = new byte [len];
 744                                                         stream.Seek (0, SeekOrigin.Begin);
 745                                                         stream.Read (resources [i].data, 0, (int)len);
 746                                                 } catch {
 747                                                         /* do something */
 748                                                 }
 749                                         }
 750                                 }
 751                         }
 752
 753                         build_metadata (this);
 754
 755                         string fileName = fqname;
 756                         if (assemblyb.AssemblyDir != null)
 757                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 758
 759                         try {
 760                                 // We mmap the file, so unlink the previous version since it may be in use
 761                                 File.Delete (fileName);
 762                         } catch {
 763                                 // We can safely ignore
 764                         }
 765                         using (FileStream file = new FileStream (fileName, FileMode.Create, FileAccess.Write))
 766                                 WriteToFile (file.Handle);
 767
 768                         //
 769                         // The constant 0x80000000 is internal to Mono, it means `make executable'
 770                         //
 771                         File.SetAttributes (fileName, (FileAttributes) (unchecked ((int) 0x80000000)));
 772
 773                         if (types != null && symbolWriter != null) {
 774                                 for (int i = 0; i < num_types; ++i)
 775                                         types [i].GenerateDebugInfo (symbolWriter);
 776                                 symbolWriter.Close ();
 777                         }
 778                 }
 779
 780                 internal string FileName {
 781                         get {
 782                                 return fqname;
 783                         }
 784                 }
 785
 786                 internal bool IsMain {
 787                         set {
 788                                 is_main = value;
 789                         }
 790                 }
 791
 792                 internal void CreateGlobalType () {
 793                         if (global_type == null)
 794                                 global_type = new TypeBuilder (this, 0, 1);
 795                 }
 796
 797                 internal override Guid GetModuleVersionId ()
 798                 {
 799                         return new Guid (guid);
 800                 }
 801
 802                 // Used by mcs, the symbol writer, and mdb through reflection
 803                 internal static Guid Mono_GetGuid (ModuleBuilder mb)
 804                 {
 805                         return mb.GetModuleVersionId ();
 806                 }
 807
 808                 void _ModuleBuilder.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 809                 {
 810                         throw new NotImplementedException ();
 811                 }
 812
 813                 void _ModuleBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 814                 {
 815                         throw new NotImplementedException ();
 816                 }
 817
 818                 void _ModuleBuilder.GetTypeInfoCount (out uint pcTInfo)
 819                 {
 820                         throw new NotImplementedException ();
 821                 }
 822
 823                 void _ModuleBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 824                 {
 825                         throw new NotImplementedException ();
 826                 }
 827
 828 #if NET_4_0 || MOONLIGHT || MOBILE
 829                 public override Assembly Assembly {
 830                         get { return assemblyb; }
 831                 }
 832
 833                 public override string Name {
 834                         get { return name; }
 835                 }
 836
 837                 public override string ScopeName {
 838                         get { return name; }
 839                 }
 840
 841                 public override Guid ModuleVersionId {
 842                         get {
 843                                 return GetModuleVersionId ();
 844                         }
 845                 }
 846
 847                 //XXX resource modules can't be defined with ModuleBuilder
 848                 public override bool IsResource ()
 849                 {
 850                         return false;
 851                 }
 852
 853                 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
 854                 {
 855                         if (global_type_created == null)
 856                                 return null;
 857                         if (types == null)
 858                                 return global_type_created.GetMethod (name);
 859                         return global_type_created.GetMethod (name, bindingAttr, binder, callConvention, types, modifiers);
 860                 }
 861
 862                 public override FieldInfo ResolveField (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 863                         ResolveTokenError error;
 864
 865                         IntPtr handle = ResolveFieldToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 866                         if (handle == IntPtr.Zero)
 867                                 throw resolve_token_exception (metadataToken, error, "Field");
 868                         else
 869                                 return FieldInfo.GetFieldFromHandle (new RuntimeFieldHandle (handle));
 870                 }
 871
 872                 public override MemberInfo ResolveMember (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 873
 874                         ResolveTokenError error;
 875
 876                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 877                         if (m == null)
 878                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
 879                         else
 880                                 return m;
 881                 }
 882
 883                 public override MethodBase ResolveMethod (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 884                         ResolveTokenError error;
 885
 886                         IntPtr handle = ResolveMethodToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 887                         if (handle == IntPtr.Zero)
 888                                 throw resolve_token_exception (metadataToken, error, "MethodBase");
 889                         else
 890                                 return MethodBase.GetMethodFromHandleNoGenericCheck (new RuntimeMethodHandle (handle));
 891                 }
 892
 893                 public override string ResolveString (int metadataToken) {
 894                         ResolveTokenError error;
 895
 896                         string s = ResolveStringToken (_impl, metadataToken, out error);
 897                         if (s == null)
 898                                 throw resolve_token_exception (metadataToken, error, "string");
 899                         else
 900                                 return s;
 901                 }
 902
 903                 public override byte[] ResolveSignature (int metadataToken) {
 904                         ResolveTokenError error;
 905
 906                     byte[] res = ResolveSignature (_impl, metadataToken, out error);
 907                         if (res == null)
 908                                 throw resolve_token_exception (metadataToken, error, "signature");
 909                         else
 910                                 return res;
 911                 }
 912
 913                 public override Type ResolveType (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 914                         ResolveTokenError error;
 915
 916                         IntPtr handle = ResolveTypeToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 917                         if (handle == IntPtr.Zero)
 918                                 throw resolve_token_exception (metadataToken, error, "Type");
 919                         else
 920                                 return Type.GetTypeFromHandle (new RuntimeTypeHandle (handle));
 921                 }
 922
 923                 public override bool Equals (object obj)
 924                 {
 925                         return base.Equals (obj);
 926                 }
 927
 928                 public override int GetHashCode ()
 929                 {
 930                         return base.GetHashCode ();
 931                 }
 932
 933                 public override bool IsDefined (Type attributeType, bool inherit)
 934                 {
 935                         return base.IsDefined (attributeType, inherit);
 936                 }
 937
 938                 public override object[] GetCustomAttributes (bool inherit)
 939                 {
 940                         return base.GetCustomAttributes (inherit);
 941                 }
 942
 943                 public override object[] GetCustomAttributes (Type attributeType, bool inherit)
 944                 {
 945                         return base.GetCustomAttributes (attributeType, inherit);
 946                 }
 947
 948                 public override FieldInfo GetField (string name, BindingFlags bindingAttr)
 949                 {
 950                         return base.GetField (name, bindingAttr);
 951                 }
 952
 953                 public override FieldInfo[] GetFields (BindingFlags bindingFlags)
 954                 {
 955                         return base.GetFields (bindingFlags);
 956                 }
 957
 958                 public override MethodInfo[] GetMethods (BindingFlags bindingFlags)
 959                 {
 960                         return base.GetMethods (bindingFlags);
 961                 }
 962
 963                 public override int MetadataToken {
 964                         get {
 965                                 return base.MetadataToken;
 966                         }
 967                 }
 968 #endif
 969         }
 970
 971         internal class ModuleBuilderTokenGenerator : TokenGenerator {
 972
 973                 private ModuleBuilder mb;
 974
 975                 public ModuleBuilderTokenGenerator (ModuleBuilder mb) {
 976                         this.mb = mb;
 977                 }
 978
 979                 public int GetToken (string str) {
 980                         return mb.GetToken (str);
 981                 }
 982
 983                 public int GetToken (MemberInfo member, bool create_open_instance) {
 984                         return mb.GetToken (member, create_open_instance);
 985                 }
 986
 987                 public int GetToken (MethodInfo method, Type[] opt_param_types) {
 988                         return mb.GetToken (method, opt_param_types);
 989                 }
 990
 991                 public int GetToken (SignatureHelper helper) {
 992                         return mb.GetToken (helper);
 993                 }
 994         }
 995 }
 996