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

   1 //
   2 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23
  24 //
  25 // System.Reflection.Emit/ModuleBuilder.cs
  26 //
  27 // Author:
  28 //   Paolo Molaro (lupus@ximian.com)
  29 //
  30 // (C) 2001 Ximian, Inc.  http://www.ximian.com
  31 //
  32
  33 #if !FULL_AOT_RUNTIME
  34 using System;
  35 using System.Reflection;
  36 using System.Collections;
  37 using System.Collections.Generic;
  38 using System.Runtime.CompilerServices;
  39 using System.Runtime.InteropServices;
  40 using System.Diagnostics.SymbolStore;
  41 using System.IO;
  42 using System.Resources;
  43 using System.Globalization;
  44
  45 namespace System.Reflection.Emit {
  46         [ComVisible (true)]
  47         [ComDefaultInterface (typeof (_ModuleBuilder))]
  48         [ClassInterface (ClassInterfaceType.None)]
  49         [StructLayout (LayoutKind.Sequential)]
  50         public class ModuleBuilder : Module, _ModuleBuilder {
  51
  52 #pragma warning disable 169, 414
  53                 #region Sync with object-internals.h
  54                 private UIntPtr dynamic_image; /* GC-tracked */
  55                 private int num_types;
  56                 private TypeBuilder[] types;
  57                 private CustomAttributeBuilder[] cattrs;
  58                 private byte[] guid;
  59                 private int table_idx;
  60                 internal AssemblyBuilder assemblyb;
  61                 private MethodBuilder[] global_methods;
  62                 private FieldBuilder[] global_fields;
  63                 bool is_main;
  64                 private MonoResource[] resources;
  65                 #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                                 Assembly asm = Assembly.LoadWithPartialName ("Mono.CompilerServices.SymbolWriter");
 108                                 if (asm == null)
 109                                         throw new TypeLoadException ("The assembly for default symbol writer cannot be loaded");
 110
 111                                 Type t = asm.GetType ("Mono.CompilerServices.SymbolWriter.SymbolWriterImpl", true);
 112                                 symbolWriter = (ISymbolWriter) Activator.CreateInstance (t, new object[] { this });
 113                                 string fileName = fqname;
 114                                 if (assemblyb.AssemblyDir != null)
 115                                         fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 116                                 symbolWriter.Initialize (IntPtr.Zero, fileName, true);
 117                         }
 118                 }
 119
 120                 public override string FullyQualifiedName {get { return fqname;}}
 121
 122                 public bool IsTransient () {
 123                         return transient;
 124                 }
 125
 126                 public void CreateGlobalFunctions ()
 127                 {
 128                         if (global_type_created != null)
 129                                 throw new InvalidOperationException ("global methods already created");
 130                         if (global_type != null)
 131                                 global_type_created = global_type.CreateType ();
 132                 }
 133
 134                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 135                         if (data == null)
 136                                 throw new ArgumentNullException ("data");
 137
 138                         FieldBuilder fb = DefineUninitializedData (name, data.Length,
 139                                                                                                            attributes | FieldAttributes.HasFieldRVA);
 140                         fb.SetRVAData (data);
 141
 142                         return fb;
 143                 }
 144
 145                 public FieldBuilder DefineUninitializedData (string name, int size, FieldAttributes attributes)
 146                 {
 147                         if (name == null)
 148                                 throw new ArgumentNullException ("name");
 149                         if (global_type_created != null)
 150                                 throw new InvalidOperationException ("global fields already created");
 151                         if ((size <= 0) || (size > 0x3f0000))
 152                                 throw new ArgumentException ("size", "Data size must be > 0 and < 0x3f0000");
 153
 154                         CreateGlobalType ();
 155
 156                         string typeName = "$ArrayType$" + size;
 157                         Type datablobtype = GetType (typeName, false, false);
 158                         if (datablobtype == null) {
 159                                 TypeBuilder tb = DefineType (typeName,
 160                                     TypeAttributes.Public|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 161                                         assemblyb.corlib_value_type, null, PackingSize.Size1, size);
 162                                 tb.CreateType ();
 163                                 datablobtype = tb;
 164                         }
 165                         FieldBuilder fb = global_type.DefineField (name, datablobtype, attributes|FieldAttributes.Static);
 166
 167                         if (global_fields != null) {
 168                                 FieldBuilder[] new_fields = new FieldBuilder [global_fields.Length+1];
 169                                 System.Array.Copy (global_fields, new_fields, global_fields.Length);
 170                                 new_fields [global_fields.Length] = fb;
 171                                 global_fields = new_fields;
 172                         } else {
 173                                 global_fields = new FieldBuilder [1];
 174                                 global_fields [0] = fb;
 175                         }
 176                         return fb;
 177                 }
 178
 179                 private void addGlobalMethod (MethodBuilder mb) {
 180                         if (global_methods != null) {
 181                                 MethodBuilder[] new_methods = new MethodBuilder [global_methods.Length+1];
 182                                 System.Array.Copy (global_methods, new_methods, global_methods.Length);
 183                                 new_methods [global_methods.Length] = mb;
 184                                 global_methods = new_methods;
 185                         } else {
 186                                 global_methods = new MethodBuilder [1];
 187                                 global_methods [0] = mb;
 188                         }
 189                 }
 190
 191                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes)
 192                 {
 193                         return DefineGlobalMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 194                 }
 195
 196                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 197                         return DefineGlobalMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 198                 }
 199
 200                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] requiredReturnTypeCustomModifiers, Type[] optionalReturnTypeCustomModifiers, Type[] parameterTypes, Type[][] requiredParameterTypeCustomModifiers, Type[][] optionalParameterTypeCustomModifiers)
 201                 {
 202                         if (name == null)
 203                                 throw new ArgumentNullException ("name");
 204                         if ((attributes & MethodAttributes.Static) == 0)
 205                                 throw new ArgumentException ("global methods must be static");
 206                         if (global_type_created != null)
 207                                 throw new InvalidOperationException ("global methods already created");
 208                         CreateGlobalType ();
 209                         MethodBuilder mb = global_type.DefineMethod (name, attributes, callingConvention, returnType, requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers, parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterTypeCustomModifiers);
 210
 211                         addGlobalMethod (mb);
 212                         return mb;
 213                 }
 214
 215                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 216                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 217                 }
 218
 219                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 220                         if (name == null)
 221                                 throw new ArgumentNullException ("name");
 222                         if ((attributes & MethodAttributes.Static) == 0)
 223                                 throw new ArgumentException ("global methods must be static");
 224                         if (global_type_created != null)
 225                                 throw new InvalidOperationException ("global methods already created");
 226                         CreateGlobalType ();
 227                         MethodBuilder mb = global_type.DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 228
 229                         addGlobalMethod (mb);
 230                         return mb;
 231                 }
 232
 233                 public TypeBuilder DefineType (string name) {
 234                         return DefineType (name, 0);
 235                 }
 236
 237                 public TypeBuilder DefineType (string name, TypeAttributes attr) {
 238                         if ((attr & TypeAttributes.Interface) != 0)
 239                                 return DefineType (name, attr, null, null);
 240                         return DefineType (name, attr, typeof(object), null);
 241                 }
 242
 243                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent) {
 244                         return DefineType (name, attr, parent, null);
 245                 }
 246
 247                 private void AddType (TypeBuilder tb)
 248                 {
 249                         if (types != null) {
 250                                 if (types.Length == num_types) {
 251                                         TypeBuilder[] new_types = new TypeBuilder [types.Length * 2];
 252                                         System.Array.Copy (types, new_types, num_types);
 253                                         types = new_types;
 254                                 }
 255                         } else {
 256                                 types = new TypeBuilder [1];
 257                         }
 258                         types [num_types] = tb;
 259                         num_types ++;
 260                 }
 261
 262                 private TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packingSize, int typesize) {
 263                         if (name == null)
 264                                 throw new ArgumentNullException ("fullname");
 265                         if (name_cache.ContainsKey (name))
 266                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 267                         TypeBuilder res = new TypeBuilder (this, name, attr, parent, interfaces, packingSize, typesize, null);
 268                         AddType (res);
 269
 270                         name_cache.Add (name, res);
 271
 272                         return res;
 273                 }
 274
 275                 internal void RegisterTypeName (TypeBuilder tb, string name)
 276                 {
 277                         name_cache.Add (name, tb);
 278                 }
 279
 280                 internal TypeBuilder GetRegisteredType (string name)
 281                 {
 282                         return (TypeBuilder) name_cache [name];
 283                 }
 284
 285                 [ComVisible (true)]
 286                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 287                         return DefineType (name, attr, parent, interfaces, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 288                 }
 289
 290                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, int typesize) {
 291                         return DefineType (name, attr, parent, null, PackingSize.Unspecified, TypeBuilder.UnspecifiedTypeSize);
 292                 }
 293
 294                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 295                         return DefineType (name, attr, parent, null, packsize, TypeBuilder.UnspecifiedTypeSize);
 296                 }
 297
 298                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, PackingSize packingSize, int typesize) {
 299                         return DefineType (name, attr, parent, null, packingSize, typesize);
 300                 }
 301
 302                 public MethodInfo GetArrayMethod( Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 303                         return new MonoArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes);
 304                 }
 305
 306                 public EnumBuilder DefineEnum( string name, TypeAttributes visibility, Type underlyingType) {
 307                         if (name_cache.Contains (name))
 308                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 309
 310                         EnumBuilder eb = new EnumBuilder (this, name, visibility, underlyingType);
 311                         TypeBuilder res = eb.GetTypeBuilder ();
 312                         AddType (res);
 313                         name_cache.Add (name, res);
 314                         return eb;
 315                 }
 316
 317                 [ComVisible (true)]
 318                 public override Type GetType( string className) {
 319                         return GetType (className, false, false);
 320                 }
 321
 322                 [ComVisible (true)]
 323                 public override Type GetType( string className, bool ignoreCase) {
 324                         return GetType (className, false, ignoreCase);
 325                 }
 326
 327                 private TypeBuilder search_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 328                         int i;
 329                         for (i = 0; i < validElementsInArray; ++i) {
 330                                 if (String.Compare (className, arr [i].FullName, true, CultureInfo.InvariantCulture) == 0) {
 331                                         return arr [i];
 332                                 }
 333                         }
 334                         return null;
 335                 }
 336
 337                 private TypeBuilder search_nested_in_array (TypeBuilder[] arr, int validElementsInArray, string className) {
 338                         int i;
 339                         for (i = 0; i < validElementsInArray; ++i) {
 340                                 if (String.Compare (className, arr [i].Name, true, CultureInfo.InvariantCulture) == 0)
 341                                         return arr [i];
 342                         }
 343                         return null;
 344                 }
 345
 346                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 347                 private static extern Type create_modified_type (TypeBuilder tb, string modifiers);
 348
 349                 static readonly char [] type_modifiers = {'&', '[', '*'};
 350
 351                 private TypeBuilder GetMaybeNested (TypeBuilder t, string className) {
 352                         int subt;
 353                         string pname, rname;
 354
 355                         subt = className.IndexOf ('+');
 356                         if (subt < 0) {
 357                                 if (t.subtypes != null)
 358                                         return search_nested_in_array (t.subtypes, t.subtypes.Length, className);
 359                                 return null;
 360                         }
 361                         if (t.subtypes != null) {
 362                                 pname = className.Substring (0, subt);
 363                                 rname = className.Substring (subt + 1);
 364                                 TypeBuilder result = search_nested_in_array (t.subtypes, t.subtypes.Length, pname);
 365                                 if (result != null)
 366                                         return GetMaybeNested (result, rname);
 367                         }
 368                         return null;
 369                 }
 370
 371                 [ComVisible (true)]
 372                 public override Type GetType (string className, bool throwOnError, bool ignoreCase)
 373                 {
 374                         if (className == null)
 375                                 throw new ArgumentNullException ("className");
 376                         if (className.Length == 0)
 377                                 throw new ArgumentException ("className");
 378
 379                         int subt;
 380                         string orig = className;
 381                         string modifiers;
 382                         TypeBuilder result = null;
 383
 384                         if (types == null && throwOnError)
 385                                 throw new TypeLoadException (className);
 386
 387                         subt = className.IndexOfAny (type_modifiers);
 388                         if (subt >= 0) {
 389                                 modifiers = className.Substring (subt);
 390                                 className = className.Substring (0, subt);
 391                         } else
 392                                 modifiers = null;
 393
 394                         if (!ignoreCase) {
 395                                 result =  name_cache [className] as TypeBuilder;
 396                         } else {
 397                                 subt = className.IndexOf ('+');
 398                                 if (subt < 0) {
 399                                         if (types != null)
 400                                                 result = search_in_array (types, num_types,  className);
 401                                 } else {
 402                                         string pname, rname;
 403                                         pname = className.Substring (0, subt);
 404                                         rname = className.Substring (subt + 1);
 405                                         result = search_in_array (types, num_types, pname);
 406                                         if (result != null)
 407                                                 result = GetMaybeNested (result, rname);
 408                                 }
 409                         }
 410                         if ((result == null) && throwOnError)
 411                                 throw new TypeLoadException (orig);
 412                         if (result != null && (modifiers != null)) {
 413                                 Type mt = create_modified_type (result, modifiers);
 414                                 result = mt as TypeBuilder;
 415                                 if (result == null)
 416                                         return mt;
 417                         }
 418                         if (result != null && result.is_created)
 419                                 return result.CreateType ();
 420                         else
 421                                 return result;
 422                 }
 423
 424                 internal int get_next_table_index (object obj, int table, bool inc) {
 425                         if (table_indexes == null) {
 426                                 table_indexes = new int [64];
 427                                 for (int i=0; i < 64; ++i)
 428                                         table_indexes [i] = 1;
 429                                 /* allow room for .<Module> in TypeDef table */
 430                                 table_indexes [0x02] = 2;
 431                         }
 432                         // Console.WriteLine ("getindex for table "+table.ToString()+" got "+table_indexes [table].ToString());
 433                         if (inc)
 434                                 return table_indexes [table]++;
 435                         return table_indexes [table];
 436                 }
 437
 438                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 439                         if (cattrs != null) {
 440                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 441                                 cattrs.CopyTo (new_array, 0);
 442                                 new_array [cattrs.Length] = customBuilder;
 443                                 cattrs = new_array;
 444                         } else {
 445                                 cattrs = new CustomAttributeBuilder [1];
 446                                 cattrs [0] = customBuilder;
 447                         }
 448                 }
 449
 450                 [ComVisible (true)]
 451                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 452                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 453                 }
 454
 455                 public ISymbolWriter GetSymWriter () {
 456                         return symbolWriter;
 457                 }
 458
 459                 public ISymbolDocumentWriter DefineDocument (string url, Guid language, Guid languageVendor, Guid documentType)
 460                 {
 461                         if (symbolWriter != null)
 462                                 return symbolWriter.DefineDocument (url, language, languageVendor, documentType);
 463                         else
 464                                 return null;
 465                 }
 466
 467                 public override Type [] GetTypes ()
 468                 {
 469                         if (types == null)
 470                                 return Type.EmptyTypes;
 471
 472                         int n = num_types;
 473                         Type [] copy = new Type [n];
 474                         Array.Copy (types, copy, n);
 475
 476                         // MS replaces the typebuilders with their created types
 477                         for (int i = 0; i < copy.Length; ++i)
 478                                 if (types [i].is_created)
 479                                         copy [i] = types [i].CreateType ();
 480
 481                         return copy;
 482                 }
 483
 484                 public IResourceWriter DefineResource (string name, string description, ResourceAttributes attribute)
 485                 {
 486                         if (name == null)
 487                                 throw new ArgumentNullException ("name");
 488                         if (name == String.Empty)
 489                                 throw new ArgumentException ("name cannot be empty");
 490                         if (transient)
 491                                 throw new InvalidOperationException ("The module is transient");
 492                         if (!assemblyb.IsSave)
 493                                 throw new InvalidOperationException ("The assembly is transient");
 494                         ResourceWriter writer = new ResourceWriter (new MemoryStream ());
 495                         if (resource_writers == null)
 496                                 resource_writers = new Hashtable ();
 497                         resource_writers [name] = writer;
 498
 499                         // The data is filled out later
 500                         if (resources != null) {
 501                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 502                                 System.Array.Copy(resources, new_r, resources.Length);
 503                                 resources = new_r;
 504                         } else {
 505                                 resources = new MonoResource [1];
 506                         }
 507                         int p = resources.Length - 1;
 508                         resources [p].name = name;
 509                         resources [p].attrs = attribute;
 510
 511                         return writer;
 512                 }
 513
 514                 public IResourceWriter DefineResource (string name, string description)
 515                 {
 516                         return DefineResource (name, description, ResourceAttributes.Public);
 517                 }
 518
 519                 [MonoTODO]
 520                 public void DefineUnmanagedResource (byte[] resource)
 521                 {
 522                         if (resource == null)
 523                                 throw new ArgumentNullException ("resource");
 524
 525                         throw new NotImplementedException ();
 526                 }
 527
 528                 [MonoTODO]
 529                 public void DefineUnmanagedResource (string resourceFileName)
 530                 {
 531                         if (resourceFileName == null)
 532                                 throw new ArgumentNullException ("resourceFileName");
 533                         if (resourceFileName == String.Empty)
 534                                 throw new ArgumentException ("resourceFileName");
 535                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 536                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exist or is a directory.");
 537
 538                         throw new NotImplementedException ();
 539                 }
 540
 541                 public void DefineManifestResource (string name, Stream stream, ResourceAttributes attribute) {
 542                         if (name == null)
 543                                 throw new ArgumentNullException ("name");
 544                         if (name == String.Empty)
 545                                 throw new ArgumentException ("name cannot be empty");
 546                         if (stream == null)
 547                                 throw new ArgumentNullException ("stream");
 548                         if (transient)
 549                                 throw new InvalidOperationException ("The module is transient");
 550                         if (!assemblyb.IsSave)
 551                                 throw new InvalidOperationException ("The assembly is transient");
 552
 553                         if (resources != null) {
 554                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 555                                 System.Array.Copy(resources, new_r, resources.Length);
 556                                 resources = new_r;
 557                         } else {
 558                                 resources = new MonoResource [1];
 559                         }
 560                         int p = resources.Length - 1;
 561                         resources [p].name = name;
 562                         resources [p].attrs = attribute;
 563                         resources [p].stream = stream;
 564                 }
 565
 566                 [MonoTODO]
 567                 public void SetSymCustomAttribute (string name, byte[] data)
 568                 {
 569                         throw new NotImplementedException ();
 570                 }
 571
 572                 [MonoTODO]
 573                 public void SetUserEntryPoint (MethodInfo entryPoint)
 574                 {
 575                         if (entryPoint == null)
 576                                 throw new ArgumentNullException ("entryPoint");
 577                         if (entryPoint.DeclaringType.Module != this)
 578                                 throw new InvalidOperationException ("entryPoint is not contained in this module");
 579                         throw new NotImplementedException ();
 580                 }
 581
 582                 public MethodToken GetMethodToken (MethodInfo method)
 583                 {
 584                         if (method == null)
 585                                 throw new ArgumentNullException ("method");
 586                         if (method.DeclaringType.Module != this)
 587                                 throw new InvalidOperationException ("The method is not in this module");
 588                         return new MethodToken (GetToken (method));
 589                 }
 590
 591                 public MethodToken GetArrayMethodToken (Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes)
 592                 {
 593                         return GetMethodToken (GetArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes));
 594                 }
 595
 596                 [ComVisible (true)]
 597                 public MethodToken GetConstructorToken (ConstructorInfo con)
 598                 {
 599                         if (con == null)
 600                                 throw new ArgumentNullException ("con");
 601                         if (con.DeclaringType.Module != this)
 602                                 throw new InvalidOperationException ("The constructor is not in this module");
 603                         return new MethodToken (GetToken (con));
 604                 }
 605
 606                 public FieldToken GetFieldToken (FieldInfo field)
 607                 {
 608                         if (field == null)
 609                                 throw new ArgumentNullException ("field");
 610                         if (field.DeclaringType.Module != this)
 611                                 throw new InvalidOperationException ("The method is not in this module");
 612                         return new FieldToken (GetToken (field));
 613                 }
 614
 615                 [MonoTODO]
 616                 public SignatureToken GetSignatureToken (byte[] sigBytes, int sigLength)
 617                 {
 618                         throw new NotImplementedException ();
 619                 }
 620
 621                 public SignatureToken GetSignatureToken (SignatureHelper sigHelper)
 622                 {
 623                         if (sigHelper == null)
 624                                 throw new ArgumentNullException ("sigHelper");
 625                         return new SignatureToken (GetToken (sigHelper));
 626                 }
 627
 628                 public StringToken GetStringConstant (string str)
 629                 {
 630                         if (str == null)
 631                                 throw new ArgumentNullException ("str");
 632                         return new StringToken (GetToken (str));
 633                 }
 634
 635                 public TypeToken GetTypeToken (Type type)
 636                 {
 637                         if (type == null)
 638                                 throw new ArgumentNullException ("type");
 639                         if (type.IsByRef)
 640                                 throw new ArgumentException ("type can't be a byref type", "type");
 641                         if (!IsTransient () && (type.Module is ModuleBuilder) && ((ModuleBuilder)type.Module).IsTransient ())
 642                                 throw new InvalidOperationException ("a non-transient module can't reference a transient module");
 643                         return new TypeToken (GetToken (type));
 644                 }
 645
 646                 public TypeToken GetTypeToken (string name)
 647                 {
 648                         return GetTypeToken (GetType (name));
 649                 }
 650
 651                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 652                 private static extern int getUSIndex (ModuleBuilder mb, string str);
 653
 654                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 655                 private static extern int getToken (ModuleBuilder mb, object obj, bool create_open_instance);
 656
 657                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 658                 private static extern int getMethodToken (ModuleBuilder mb, MethodBase method,
 659                                                           Type[] opt_param_types);
 660
 661                 internal int GetToken (string str)
 662                 {
 663                         int result;
 664                         if (!us_string_cache.TryGetValue (str, out result)) {
 665                                 result = getUSIndex (this, str);
 666                                 us_string_cache [str] = result;
 667                         }
 668
 669                         return result;
 670                 }
 671
 672                 internal int GetToken (MemberInfo member) {
 673                         return getToken (this, member, true);
 674                 }
 675
 676                 internal int GetToken (MemberInfo member, bool create_open_instance) {
 677                         return getToken (this, member, create_open_instance);
 678                 }
 679
 680                 internal int GetToken (MethodBase method, Type[] opt_param_types) {
 681                         return getMethodToken (this, method, opt_param_types);
 682                 }
 683
 684                 internal int GetToken (SignatureHelper helper) {
 685                         return getToken (this, helper, true);
 686                 }
 687
 688                 /*
 689                  * Register the token->obj mapping with the runtime so the Module.Resolve...
 690                  * methods will work for obj.
 691                  */
 692                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 693                 internal extern void RegisterToken (object obj, int token);
 694
 695                 internal TokenGenerator GetTokenGenerator () {
 696                         if (token_gen == null)
 697                                 token_gen = new ModuleBuilderTokenGenerator (this);
 698                         return token_gen;
 699                 }
 700
 701                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 702                 private static extern void build_metadata (ModuleBuilder mb);
 703
 704                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 705                 private extern void WriteToFile (IntPtr handle);
 706
 707                 internal void Save ()
 708                 {
 709                         if (transient && !is_main)
 710                                 return;
 711
 712                         if (types != null) {
 713                                 for (int i = 0; i < num_types; ++i)
 714                                         if (!types [i].is_created)
 715                                                 throw new NotSupportedException ("Type '" + types [i].FullName + "' was not completed.");
 716                         }
 717
 718                         if ((global_type != null) && (global_type_created == null))
 719                                 global_type_created = global_type.CreateType ();
 720
 721                         if (resources != null) {
 722                                 for (int i = 0; i < resources.Length; ++i) {
 723                                         IResourceWriter rwriter;
 724                                         if (resource_writers != null && (rwriter = resource_writers [resources [i].name] as IResourceWriter) != null) {
 725                                                 ResourceWriter writer = (ResourceWriter)rwriter;
 726                                                 writer.Generate ();
 727                                                 MemoryStream mstream = (MemoryStream)writer.Stream;
 728                                                 resources [i].data = new byte [mstream.Length];
 729                                                 mstream.Seek (0, SeekOrigin.Begin);
 730                                                 mstream.Read (resources [i].data, 0, (int)mstream.Length);
 731                                                 continue;
 732                                         }
 733                                         Stream stream = resources [i].stream;
 734
 735                                         // According to MSDN docs, the stream is read during assembly save, not earlier
 736                                         if (stream != null) {
 737                                                 try {
 738                                                         long len = stream.Length;
 739                                                         resources [i].data = new byte [len];
 740                                                         stream.Seek (0, SeekOrigin.Begin);
 741                                                         stream.Read (resources [i].data, 0, (int)len);
 742                                                 } catch {
 743                                                         /* do something */
 744                                                 }
 745                                         }
 746                                 }
 747                         }
 748
 749                         build_metadata (this);
 750
 751                         string fileName = fqname;
 752                         if (assemblyb.AssemblyDir != null)
 753                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 754
 755                         try {
 756                                 // We mmap the file, so unlink the previous version since it may be in use
 757                                 File.Delete (fileName);
 758                         } catch {
 759                                 // We can safely ignore
 760                         }
 761                         using (FileStream file = new FileStream (fileName, FileMode.Create, FileAccess.Write))
 762                                 WriteToFile (file.Handle);
 763
 764                         //
 765                         // The constant 0x80000000 is internal to Mono, it means `make executable'
 766                         //
 767                         File.SetAttributes (fileName, (FileAttributes) (unchecked ((int) 0x80000000)));
 768
 769                         if (types != null && symbolWriter != null) {
 770                                 for (int i = 0; i < num_types; ++i)
 771                                         types [i].GenerateDebugInfo (symbolWriter);
 772                                 symbolWriter.Close ();
 773                         }
 774                 }
 775
 776                 internal string FileName {
 777                         get {
 778                                 return fqname;
 779                         }
 780                 }
 781
 782                 internal bool IsMain {
 783                         set {
 784                                 is_main = value;
 785                         }
 786                 }
 787
 788                 internal void CreateGlobalType () {
 789                         if (global_type == null)
 790                                 global_type = new TypeBuilder (this, 0, 1);
 791                 }
 792
 793                 internal override Guid GetModuleVersionId ()
 794                 {
 795                         return new Guid (guid);
 796                 }
 797
 798                 // Used by mcs, the symbol writer, and mdb through reflection
 799                 internal static Guid Mono_GetGuid (ModuleBuilder mb)
 800                 {
 801                         return mb.GetModuleVersionId ();
 802                 }
 803
 804                 void _ModuleBuilder.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 805                 {
 806                         throw new NotImplementedException ();
 807                 }
 808
 809                 void _ModuleBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 810                 {
 811                         throw new NotImplementedException ();
 812                 }
 813
 814                 void _ModuleBuilder.GetTypeInfoCount (out uint pcTInfo)
 815                 {
 816                         throw new NotImplementedException ();
 817                 }
 818
 819                 void _ModuleBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 820                 {
 821                         throw new NotImplementedException ();
 822                 }
 823
 824 #if NET_4_0
 825                 public override Assembly Assembly {
 826                         get { return assemblyb; }
 827                 }
 828
 829                 public override string Name {
 830                         get { return name; }
 831                 }
 832
 833                 public override string ScopeName {
 834                         get { return name; }
 835                 }
 836
 837                 public override Guid ModuleVersionId {
 838                         get {
 839                                 return GetModuleVersionId ();
 840                         }
 841                 }
 842
 843                 //XXX resource modules can't be defined with ModuleBuilder
 844                 public override bool IsResource ()
 845                 {
 846                         return false;
 847                 }
 848
 849                 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
 850                 {
 851                         if (global_type_created == null)
 852                                 return null;
 853                         if (types == null)
 854                                 return global_type_created.GetMethod (name);
 855                         return global_type_created.GetMethod (name, bindingAttr, binder, callConvention, types, modifiers);
 856                 }
 857
 858                 public override FieldInfo ResolveField (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 859                         ResolveTokenError error;
 860
 861                         IntPtr handle = ResolveFieldToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 862                         if (handle == IntPtr.Zero)
 863                                 throw resolve_token_exception (metadataToken, error, "Field");
 864                         else
 865                                 return FieldInfo.GetFieldFromHandle (new RuntimeFieldHandle (handle));
 866                 }
 867
 868                 public override MemberInfo ResolveMember (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 869
 870                         ResolveTokenError error;
 871
 872                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 873                         if (m == null)
 874                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
 875                         else
 876                                 return m;
 877                 }
 878
 879                 public override MethodBase ResolveMethod (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 880                         ResolveTokenError error;
 881
 882                         IntPtr handle = ResolveMethodToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 883                         if (handle == IntPtr.Zero)
 884                                 throw resolve_token_exception (metadataToken, error, "MethodBase");
 885                         else
 886                                 return MethodBase.GetMethodFromHandleNoGenericCheck (new RuntimeMethodHandle (handle));
 887                 }
 888
 889                 public override string ResolveString (int metadataToken) {
 890                         ResolveTokenError error;
 891
 892                         string s = ResolveStringToken (_impl, metadataToken, out error);
 893                         if (s == null)
 894                                 throw resolve_token_exception (metadataToken, error, "string");
 895                         else
 896                                 return s;
 897                 }
 898
 899                 public override byte[] ResolveSignature (int metadataToken) {
 900                         ResolveTokenError error;
 901
 902                     byte[] res = ResolveSignature (_impl, metadataToken, out error);
 903                         if (res == null)
 904                                 throw resolve_token_exception (metadataToken, error, "signature");
 905                         else
 906                                 return res;
 907                 }
 908
 909                 public override Type ResolveType (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 910                         ResolveTokenError error;
 911
 912                         IntPtr handle = ResolveTypeToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 913                         if (handle == IntPtr.Zero)
 914                                 throw resolve_token_exception (metadataToken, error, "Type");
 915                         else
 916                                 return Type.GetTypeFromHandle (new RuntimeTypeHandle (handle));
 917                 }
 918
 919                 public override bool Equals (object obj)
 920                 {
 921                         return base.Equals (obj);
 922                 }
 923
 924                 public override int GetHashCode ()
 925                 {
 926                         return base.GetHashCode ();
 927                 }
 928
 929                 public override bool IsDefined (Type attributeType, bool inherit)
 930                 {
 931                         return base.IsDefined (attributeType, inherit);
 932                 }
 933
 934                 public override object[] GetCustomAttributes (bool inherit)
 935                 {
 936                         return base.GetCustomAttributes (inherit);
 937                 }
 938
 939                 public override object[] GetCustomAttributes (Type attributeType, bool inherit)
 940                 {
 941                         return base.GetCustomAttributes (attributeType, inherit);
 942                 }
 943
 944                 public override FieldInfo GetField (string name, BindingFlags bindingAttr)
 945                 {
 946                         return base.GetField (name, bindingAttr);
 947                 }
 948
 949                 public override FieldInfo[] GetFields (BindingFlags bindingFlags)
 950                 {
 951                         return base.GetFields (bindingFlags);
 952                 }
 953
 954                 public override MethodInfo[] GetMethods (BindingFlags bindingFlags)
 955                 {
 956                         return base.GetMethods (bindingFlags);
 957                 }
 958
 959                 public override int MetadataToken {
 960                         get {
 961                                 return base.MetadataToken;
 962                         }
 963                 }
 964 #endif
 965         }
 966
 967         internal class ModuleBuilderTokenGenerator : TokenGenerator {
 968
 969                 private ModuleBuilder mb;
 970
 971                 public ModuleBuilderTokenGenerator (ModuleBuilder mb) {
 972                         this.mb = mb;
 973                 }
 974
 975                 public int GetToken (string str) {
 976                         return mb.GetToken (str);
 977                 }
 978
 979                 public int GetToken (MemberInfo member, bool create_open_instance) {
 980                         return mb.GetToken (member, create_open_instance);
 981                 }
 982
 983                 public int GetToken (MethodBase method, Type[] opt_param_types) {
 984                         return mb.GetToken (method, opt_param_types);
 985                 }
 986
 987                 public int GetToken (SignatureHelper helper) {
 988                         return mb.GetToken (helper);
 989                 }
 990         }
 991 }
 992
 993 #endif