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                 // name_cache keys are display names
  71                 Dictionary<TypeName, TypeBuilder> name_cache;
  72                 Dictionary<string, int> us_string_cache;
  73                 private int[] table_indexes;
  74                 bool transient;
  75                 ModuleBuilderTokenGenerator token_gen;
  76                 Hashtable resource_writers;
  77                 ISymbolWriter symbolWriter;
  78
  79                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  80                 private static extern void basic_init (ModuleBuilder ab);
  81
  82                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  83                 private static extern void set_wrappers_type (ModuleBuilder mb, Type ab);
  84
  85                 internal ModuleBuilder (AssemblyBuilder assb, string name, string fullyqname, bool emitSymbolInfo, bool transient) {
  86                         this.name = this.scopename = name;
  87                         this.fqname = fullyqname;
  88                         this.assembly = this.assemblyb = assb;
  89                         this.transient = transient;
  90                         // to keep mcs fast we do not want CryptoConfig wo be involved to create the RNG
  91                         guid = Guid.FastNewGuidArray ();
  92                         // guid = Guid.NewGuid().ToByteArray ();
  93                         table_idx = get_next_table_index (this, 0x00, true);
  94                         name_cache = new Dictionary<TypeName, TypeBuilder> ();
  95                         us_string_cache = new Dictionary<string, int> (512);
  96
  97                         basic_init (this);
  98
  99                         CreateGlobalType ();
 100
 101                         if (assb.IsRun) {
 102                                 TypeBuilder tb = new TypeBuilder (this, TypeAttributes.Abstract, 0xFFFFFF); /*last valid token*/
 103                                 Type type = tb.CreateType ();
 104                                 set_wrappers_type (this, type);
 105                         }
 106
 107                         if (emitSymbolInfo) {
 108                                 Assembly asm = Assembly.LoadWithPartialName ("Mono.CompilerServices.SymbolWriter");
 109                                 if (asm == null)
 110                                         throw new TypeLoadException ("The assembly for default symbol writer cannot be loaded");
 111
 112                                 Type t = asm.GetType ("Mono.CompilerServices.SymbolWriter.SymbolWriterImpl", true);
 113                                 symbolWriter = (ISymbolWriter) Activator.CreateInstance (t, new object[] { this });
 114                                 string fileName = fqname;
 115                                 if (assemblyb.AssemblyDir != null)
 116                                         fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 117                                 symbolWriter.Initialize (IntPtr.Zero, fileName, true);
 118                         }
 119                 }
 120
 121                 public override string FullyQualifiedName {get { return fqname;}}
 122
 123                 public bool IsTransient () {
 124                         return transient;
 125                 }
 126
 127                 public void CreateGlobalFunctions ()
 128                 {
 129                         if (global_type_created != null)
 130                                 throw new InvalidOperationException ("global methods already created");
 131                         if (global_type != null)
 132                                 global_type_created = global_type.CreateType ();
 133                 }
 134
 135                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 136                         if (data == null)
 137                                 throw new ArgumentNullException ("data");
 138
 139                         FieldBuilder fb = DefineUninitializedData (name, data.Length,
 140                                                                                                            attributes | FieldAttributes.HasFieldRVA);
 141                         fb.SetRVAData (data);
 142
 143                         return fb;
 144                 }
 145
 146                 public FieldBuilder DefineUninitializedData (string name, int size, FieldAttributes attributes)
 147                 {
 148                         if (name == null)
 149                                 throw new ArgumentNullException ("name");
 150                         if (global_type_created != null)
 151                                 throw new InvalidOperationException ("global fields already created");
 152                         if ((size <= 0) || (size > 0x3f0000))
 153                                 throw new ArgumentException ("size", "Data size must be > 0 and < 0x3f0000");
 154
 155                         CreateGlobalType ();
 156
 157                         string typeName = "$ArrayType$" + size;
 158                         Type datablobtype = GetType (typeName, false, false);
 159                         if (datablobtype == null) {
 160                                 TypeBuilder tb = DefineType (typeName,
 161                                     TypeAttributes.Public|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 162                                         assemblyb.corlib_value_type, null, PackingSize.Size1, size);
 163                                 tb.CreateType ();
 164                                 datablobtype = tb;
 165                         }
 166                         FieldBuilder fb = global_type.DefineField (name, datablobtype, attributes|FieldAttributes.Static);
 167
 168                         if (global_fields != null) {
 169                                 FieldBuilder[] new_fields = new FieldBuilder [global_fields.Length+1];
 170                                 System.Array.Copy (global_fields, new_fields, global_fields.Length);
 171                                 new_fields [global_fields.Length] = fb;
 172                                 global_fields = new_fields;
 173                         } else {
 174                                 global_fields = new FieldBuilder [1];
 175                                 global_fields [0] = fb;
 176                         }
 177                         return fb;
 178                 }
 179
 180                 private void addGlobalMethod (MethodBuilder mb) {
 181                         if (global_methods != null) {
 182                                 MethodBuilder[] new_methods = new MethodBuilder [global_methods.Length+1];
 183                                 System.Array.Copy (global_methods, new_methods, global_methods.Length);
 184                                 new_methods [global_methods.Length] = mb;
 185                                 global_methods = new_methods;
 186                         } else {
 187                                 global_methods = new MethodBuilder [1];
 188                                 global_methods [0] = mb;
 189                         }
 190                 }
 191
 192                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes)
 193                 {
 194                         return DefineGlobalMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 195                 }
 196
 197                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 198                         return DefineGlobalMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 199                 }
 200
 201                 public MethodBuilder DefineGlobalMethod (string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] requiredReturnTypeCustomModifiers, Type[] optionalReturnTypeCustomModifiers, Type[] parameterTypes, Type[][] requiredParameterTypeCustomModifiers, Type[][] optionalParameterTypeCustomModifiers)
 202                 {
 203                         if (name == null)
 204                                 throw new ArgumentNullException ("name");
 205                         if ((attributes & MethodAttributes.Static) == 0)
 206                                 throw new ArgumentException ("global methods must be static");
 207                         if (global_type_created != null)
 208                                 throw new InvalidOperationException ("global methods already created");
 209                         CreateGlobalType ();
 210                         MethodBuilder mb = global_type.DefineMethod (name, attributes, callingConvention, returnType, requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers, parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterTypeCustomModifiers);
 211
 212                         addGlobalMethod (mb);
 213                         return mb;
 214                 }
 215
 216                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 217                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 218                 }
 219
 220                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 221                         if (name == null)
 222                                 throw new ArgumentNullException ("name");
 223                         if ((attributes & MethodAttributes.Static) == 0)
 224                                 throw new ArgumentException ("global methods must be static");
 225                         if (global_type_created != null)
 226                                 throw new InvalidOperationException ("global methods already created");
 227                         CreateGlobalType ();
 228                         MethodBuilder mb = global_type.DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, parameterTypes, nativeCallConv, nativeCharSet);
 229
 230                         addGlobalMethod (mb);
 231                         return mb;
 232                 }
 233
 234                 public TypeBuilder DefineType (string name) {
 235                         return DefineType (name, 0);
 236                 }
 237
 238                 public TypeBuilder DefineType (string name, TypeAttributes attr) {
 239                         if ((attr & TypeAttributes.Interface) != 0)
 240                                 return DefineType (name, attr, null, null);
 241                         return DefineType (name, attr, typeof(object), null);
 242                 }
 243
 244                 public TypeBuilder DefineType (string name, TypeAttributes attr, Type parent) {
 245                         return DefineType (name, attr, parent, null);
 246                 }
 247
 248                 private void AddType (TypeBuilder tb)
 249                 {
 250                         if (types != null) {
 251                                 if (types.Length == num_types) {
 252                                         TypeBuilder[] new_types = new TypeBuilder [types.Length * 2];
 253                                         System.Array.Copy (types, new_types, num_types);
 254                                         types = new_types;
 255                                 }
 256                         } else {
 257                                 types = new TypeBuilder [1];
 258                         }
 259                         types [num_types] = tb;
 260                         num_types ++;
 261                 }
 262
 263                 private TypeBuilder DefineType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packingSize, int typesize) {
 264                         if (name == null)
 265                                 throw new ArgumentNullException ("fullname");
 266                         TypeIdentifier ident = TypeIdentifiers.FromInternal (name);
 267                         if (name_cache.ContainsKey (ident))
 268                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 269                         TypeBuilder res = new TypeBuilder (this, name, attr, parent, interfaces, packingSize, typesize, null);
 270                         AddType (res);
 271
 272                         name_cache.Add (ident, res);
 273
 274                         return res;
 275                 }
 276
 277                 internal void RegisterTypeName (TypeBuilder tb, TypeName name)
 278                 {
 279                         name_cache.Add (name, tb);
 280                 }
 281
 282                 internal TypeBuilder GetRegisteredType (TypeName name)
 283                 {
 284                         TypeBuilder result = null;
 285                         name_cache.TryGetValue (name, out result);
 286                         return result;
 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, typesize);
 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                         TypeIdentifier ident = TypeIdentifiers.FromInternal (name);
 312                         if (name_cache.ContainsKey (ident))
 313                                 throw new ArgumentException ("Duplicate type name within an assembly.");
 314
 315                         EnumBuilder eb = new EnumBuilder (this, name, visibility, underlyingType);
 316                         TypeBuilder res = eb.GetTypeBuilder ();
 317                         AddType (res);
 318                         name_cache.Add (ident, res);
 319                         return eb;
 320                 }
 321
 322                 [ComVisible (true)]
 323                 public override Type GetType( string className) {
 324                         return GetType (className, false, false);
 325                 }
 326
 327                 [ComVisible (true)]
 328                 public override Type GetType( string className, bool ignoreCase) {
 329                         return GetType (className, false, ignoreCase);
 330                 }
 331
 332                 private TypeBuilder search_in_array (TypeBuilder[] arr, int validElementsInArray, TypeName className) {
 333                         int i;
 334                         for (i = 0; i < validElementsInArray; ++i) {
 335                                 if (String.Compare (className.DisplayName, arr [i].FullName, true, CultureInfo.InvariantCulture) == 0) {
 336                                         return arr [i];
 337                                 }
 338                         }
 339                         return null;
 340                 }
 341
 342                 private TypeBuilder search_nested_in_array (TypeBuilder[] arr, int validElementsInArray, TypeName className) {
 343                         int i;
 344                         for (i = 0; i < validElementsInArray; ++i) {
 345                                 if (String.Compare (className.DisplayName, arr [i].Name, true, CultureInfo.InvariantCulture) == 0)
 346                                         return arr [i];
 347                         }
 348                         return null;
 349                 }
 350
 351                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 352                 private static extern Type create_modified_type (TypeBuilder tb, string modifiers);
 353
 354                 private TypeBuilder GetMaybeNested (TypeBuilder t, IEnumerable<TypeName> nested) {
 355                         TypeBuilder result = t;
 356
 357                         foreach (TypeName pname in nested) {
 358                                 if (result.subtypes == null)
 359                                         return null;
 360                                 result = search_nested_in_array(result.subtypes, result.subtypes.Length, pname);
 361                                 if (result == null)
 362                                         return null;
 363                         }
 364                         return result;
 365                 }
 366
 367                 [ComVisible (true)]
 368                 public override Type GetType (string className, bool throwOnError, bool ignoreCase)
 369                 {
 370                         if (className == null)
 371                                 throw new ArgumentNullException ("className");
 372                         if (className.Length == 0)
 373                                 throw new ArgumentException ("className");
 374
 375                         TypeBuilder result = null;
 376
 377                         if (types == null && throwOnError)
 378                                 throw new TypeLoadException (className);
 379
 380                         TypeSpec ts = TypeSpec.Parse (className);
 381
 382                         if (!ignoreCase) {
 383                                 var displayNestedName = ts.TypeNameWithoutModifiers();
 384                                 name_cache.TryGetValue (displayNestedName, out result);
 385                         } else {
 386                                 if (types != null)
 387                                         result = search_in_array (types, num_types,  ts.Name);
 388                                 if (!ts.IsNested && result != null) {
 389                                         result = GetMaybeNested (result, ts.Nested);
 390                                 }
 391                         }
 392                         if ((result == null) && throwOnError)
 393                                 throw new TypeLoadException (className);
 394                         if (result != null && (ts.HasModifiers || ts.IsByRef)) {
 395                                 string modifiers = ts.ModifierString ();
 396                                 Type mt = create_modified_type (result, modifiers);
 397                                 result = mt as TypeBuilder;
 398                                 if (result == null)
 399                                         return mt;
 400                         }
 401                         if (result != null && result.is_created)
 402                                 return result.CreateType ();
 403                         else
 404                                 return result;
 405                 }
 406
 407                 internal int get_next_table_index (object obj, int table, bool inc) {
 408                         if (table_indexes == null) {
 409                                 table_indexes = new int [64];
 410                                 for (int i=0; i < 64; ++i)
 411                                         table_indexes [i] = 1;
 412                                 /* allow room for .<Module> in TypeDef table */
 413                                 table_indexes [0x02] = 2;
 414                         }
 415                         // Console.WriteLine ("getindex for table "+table.ToString()+" got "+table_indexes [table].ToString());
 416                         if (inc)
 417                                 return table_indexes [table]++;
 418                         return table_indexes [table];
 419                 }
 420
 421                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 422                         if (cattrs != null) {
 423                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 424                                 cattrs.CopyTo (new_array, 0);
 425                                 new_array [cattrs.Length] = customBuilder;
 426                                 cattrs = new_array;
 427                         } else {
 428                                 cattrs = new CustomAttributeBuilder [1];
 429                                 cattrs [0] = customBuilder;
 430                         }
 431                 }
 432
 433                 [ComVisible (true)]
 434                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 435                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 436                 }
 437
 438                 public ISymbolWriter GetSymWriter () {
 439                         return symbolWriter;
 440                 }
 441
 442                 public ISymbolDocumentWriter DefineDocument (string url, Guid language, Guid languageVendor, Guid documentType)
 443                 {
 444                         if (symbolWriter != null)
 445                                 return symbolWriter.DefineDocument (url, language, languageVendor, documentType);
 446                         else
 447                                 return null;
 448                 }
 449
 450                 public override Type [] GetTypes ()
 451                 {
 452                         if (types == null)
 453                                 return Type.EmptyTypes;
 454
 455                         int n = num_types;
 456                         Type [] copy = new Type [n];
 457                         Array.Copy (types, copy, n);
 458
 459                         // MS replaces the typebuilders with their created types
 460                         for (int i = 0; i < copy.Length; ++i)
 461                                 if (types [i].is_created)
 462                                         copy [i] = types [i].CreateType ();
 463
 464                         return copy;
 465                 }
 466
 467                 public IResourceWriter DefineResource (string name, string description, ResourceAttributes attribute)
 468                 {
 469                         if (name == null)
 470                                 throw new ArgumentNullException ("name");
 471                         if (name == String.Empty)
 472                                 throw new ArgumentException ("name cannot be empty");
 473                         if (transient)
 474                                 throw new InvalidOperationException ("The module is transient");
 475                         if (!assemblyb.IsSave)
 476                                 throw new InvalidOperationException ("The assembly is transient");
 477                         ResourceWriter writer = new ResourceWriter (new MemoryStream ());
 478                         if (resource_writers == null)
 479                                 resource_writers = new Hashtable ();
 480                         resource_writers [name] = writer;
 481
 482                         // The data is filled out later
 483                         if (resources != null) {
 484                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 485                                 System.Array.Copy(resources, new_r, resources.Length);
 486                                 resources = new_r;
 487                         } else {
 488                                 resources = new MonoResource [1];
 489                         }
 490                         int p = resources.Length - 1;
 491                         resources [p].name = name;
 492                         resources [p].attrs = attribute;
 493
 494                         return writer;
 495                 }
 496
 497                 public IResourceWriter DefineResource (string name, string description)
 498                 {
 499                         return DefineResource (name, description, ResourceAttributes.Public);
 500                 }
 501
 502                 [MonoTODO]
 503                 public void DefineUnmanagedResource (byte[] resource)
 504                 {
 505                         if (resource == null)
 506                                 throw new ArgumentNullException ("resource");
 507
 508                         throw new NotImplementedException ();
 509                 }
 510
 511                 [MonoTODO]
 512                 public void DefineUnmanagedResource (string resourceFileName)
 513                 {
 514                         if (resourceFileName == null)
 515                                 throw new ArgumentNullException ("resourceFileName");
 516                         if (resourceFileName == String.Empty)
 517                                 throw new ArgumentException ("resourceFileName");
 518                         if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
 519                                 throw new FileNotFoundException ("File '" + resourceFileName + "' does not exist or is a directory.");
 520
 521                         throw new NotImplementedException ();
 522                 }
 523
 524                 public void DefineManifestResource (string name, Stream stream, ResourceAttributes attribute) {
 525                         if (name == null)
 526                                 throw new ArgumentNullException ("name");
 527                         if (name == String.Empty)
 528                                 throw new ArgumentException ("name cannot be empty");
 529                         if (stream == null)
 530                                 throw new ArgumentNullException ("stream");
 531                         if (transient)
 532                                 throw new InvalidOperationException ("The module is transient");
 533                         if (!assemblyb.IsSave)
 534                                 throw new InvalidOperationException ("The assembly is transient");
 535
 536                         if (resources != null) {
 537                                 MonoResource[] new_r = new MonoResource [resources.Length + 1];
 538                                 System.Array.Copy(resources, new_r, resources.Length);
 539                                 resources = new_r;
 540                         } else {
 541                                 resources = new MonoResource [1];
 542                         }
 543                         int p = resources.Length - 1;
 544                         resources [p].name = name;
 545                         resources [p].attrs = attribute;
 546                         resources [p].stream = stream;
 547                 }
 548
 549                 [MonoTODO]
 550                 public void SetSymCustomAttribute (string name, byte[] data)
 551                 {
 552                         throw new NotImplementedException ();
 553                 }
 554
 555                 [MonoTODO]
 556                 public void SetUserEntryPoint (MethodInfo entryPoint)
 557                 {
 558                         if (entryPoint == null)
 559                                 throw new ArgumentNullException ("entryPoint");
 560                         if (entryPoint.DeclaringType.Module != this)
 561                                 throw new InvalidOperationException ("entryPoint is not contained in this module");
 562                         throw new NotImplementedException ();
 563                 }
 564
 565                 public MethodToken GetMethodToken (MethodInfo method)
 566                 {
 567                         if (method == null)
 568                                 throw new ArgumentNullException ("method");
 569
 570                         return new MethodToken (GetToken (method));
 571                 }
 572
 573                 public MethodToken GetMethodToken (MethodInfo method, IEnumerable<Type> optionalParameterTypes)
 574                 {
 575                         if (method == null)
 576                                 throw new ArgumentNullException ("method");
 577
 578                         return new MethodToken (GetToken (method, optionalParameterTypes));
 579                 }
 580
 581                 public MethodToken GetArrayMethodToken (Type arrayClass, string methodName, CallingConventions callingConvention, Type returnType, Type[] parameterTypes)
 582                 {
 583                         return GetMethodToken (GetArrayMethod (arrayClass, methodName, callingConvention, returnType, parameterTypes));
 584                 }
 585
 586                 [ComVisible (true)]
 587                 public MethodToken GetConstructorToken (ConstructorInfo con)
 588                 {
 589                         if (con == null)
 590                                 throw new ArgumentNullException ("con");
 591
 592                         return new MethodToken (GetToken (con));
 593                 }
 594
 595                 public MethodToken GetConstructorToken (ConstructorInfo constructor, IEnumerable<Type> optionalParameterTypes)
 596                 {
 597                         if (constructor == null)
 598                                 throw new ArgumentNullException ("constructor");
 599
 600                         return new MethodToken (GetToken (constructor, optionalParameterTypes));
 601                 }
 602
 603                 public FieldToken GetFieldToken (FieldInfo field)
 604                 {
 605                         if (field == null)
 606                                 throw new ArgumentNullException ("field");
 607
 608                         return new FieldToken (GetToken (field));
 609                 }
 610
 611                 [MonoTODO]
 612                 public SignatureToken GetSignatureToken (byte[] sigBytes, int sigLength)
 613                 {
 614                         throw new NotImplementedException ();
 615                 }
 616
 617                 public SignatureToken GetSignatureToken (SignatureHelper sigHelper)
 618                 {
 619                         if (sigHelper == null)
 620                                 throw new ArgumentNullException ("sigHelper");
 621                         return new SignatureToken (GetToken (sigHelper));
 622                 }
 623
 624                 public StringToken GetStringConstant (string str)
 625                 {
 626                         if (str == null)
 627                                 throw new ArgumentNullException ("str");
 628                         return new StringToken (GetToken (str));
 629                 }
 630
 631                 public TypeToken GetTypeToken (Type type)
 632                 {
 633                         if (type == null)
 634                                 throw new ArgumentNullException ("type");
 635                         if (type.IsByRef)
 636                                 throw new ArgumentException ("type can't be a byref type", "type");
 637                         if (!IsTransient () && (type.Module is ModuleBuilder) && ((ModuleBuilder)type.Module).IsTransient ())
 638                                 throw new InvalidOperationException ("a non-transient module can't reference a transient module");
 639                         return new TypeToken (GetToken (type));
 640                 }
 641
 642                 public TypeToken GetTypeToken (string name)
 643                 {
 644                         return GetTypeToken (GetType (name));
 645                 }
 646
 647                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 648                 private static extern int getUSIndex (ModuleBuilder mb, string str);
 649
 650                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 651                 private static extern int getToken (ModuleBuilder mb, object obj, bool create_open_instance);
 652
 653                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 654                 private static extern int getMethodToken (ModuleBuilder mb, MethodBase method,
 655                                                           Type[] opt_param_types);
 656
 657                 internal int GetToken (string str)
 658                 {
 659                         int result;
 660                         if (!us_string_cache.TryGetValue (str, out result)) {
 661                                 result = getUSIndex (this, str);
 662                                 us_string_cache [str] = result;
 663                         }
 664
 665                         return result;
 666                 }
 667
 668                 internal int GetToken (MemberInfo member) {
 669                         return getToken (this, member, true);
 670                 }
 671
 672                 internal int GetToken (MemberInfo member, bool create_open_instance) {
 673                         return getToken (this, member, create_open_instance);
 674                 }
 675
 676                 internal int GetToken (MethodBase method, IEnumerable<Type> opt_param_types) {
 677                         if (opt_param_types == null)
 678                                 return getToken (this, method, true);
 679
 680                         var optParamTypes = new List<Type> (opt_param_types);
 681                         return  getMethodToken (this, method, optParamTypes.ToArray ());
 682                 }
 683
 684                 internal int GetToken (MethodBase 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                 /*
 700                  * Returns MemberInfo registered with the given token.
 701                  */
 702                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 703                 internal extern object GetRegisteredToken (int token);
 704
 705                 internal TokenGenerator GetTokenGenerator () {
 706                         if (token_gen == null)
 707                                 token_gen = new ModuleBuilderTokenGenerator (this);
 708                         return token_gen;
 709                 }
 710
 711                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 712                 private static extern void build_metadata (ModuleBuilder mb);
 713
 714                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 715                 private extern void WriteToFile (IntPtr handle);
 716
 717                 internal void Save ()
 718                 {
 719                         if (transient && !is_main)
 720                                 return;
 721
 722                         if (types != null) {
 723                                 for (int i = 0; i < num_types; ++i)
 724                                         if (!types [i].is_created)
 725                                                 throw new NotSupportedException ("Type '" + types [i].FullName + "' was not completed.");
 726                         }
 727
 728                         if ((global_type != null) && (global_type_created == null))
 729                                 global_type_created = global_type.CreateType ();
 730
 731                         if (resources != null) {
 732                                 for (int i = 0; i < resources.Length; ++i) {
 733                                         IResourceWriter rwriter;
 734                                         if (resource_writers != null && (rwriter = resource_writers [resources [i].name] as IResourceWriter) != null) {
 735                                                 ResourceWriter writer = (ResourceWriter)rwriter;
 736                                                 writer.Generate ();
 737                                                 MemoryStream mstream = (MemoryStream)writer._output;
 738                                                 resources [i].data = new byte [mstream.Length];
 739                                                 mstream.Seek (0, SeekOrigin.Begin);
 740                                                 mstream.Read (resources [i].data, 0, (int)mstream.Length);
 741                                                 continue;
 742                                         }
 743                                         Stream stream = resources [i].stream;
 744
 745                                         // According to MSDN docs, the stream is read during assembly save, not earlier
 746                                         if (stream != null) {
 747                                                 try {
 748                                                         long len = stream.Length;
 749                                                         resources [i].data = new byte [len];
 750                                                         stream.Seek (0, SeekOrigin.Begin);
 751                                                         stream.Read (resources [i].data, 0, (int)len);
 752                                                 } catch {
 753                                                         /* do something */
 754                                                 }
 755                                         }
 756                                 }
 757                         }
 758
 759                         build_metadata (this);
 760
 761                         string fileName = fqname;
 762                         if (assemblyb.AssemblyDir != null)
 763                                 fileName = Path.Combine (assemblyb.AssemblyDir, fileName);
 764
 765                         try {
 766                                 // We mmap the file, so unlink the previous version since it may be in use
 767                                 File.Delete (fileName);
 768                         } catch {
 769                                 // We can safely ignore
 770                         }
 771                         using (FileStream file = new FileStream (fileName, FileMode.Create, FileAccess.Write))
 772                                 WriteToFile (file.Handle);
 773
 774                         //
 775                         // The constant 0x80000000 is internal to Mono, it means `make executable'
 776                         //
 777                         File.SetAttributes (fileName, (FileAttributes) (unchecked ((int) 0x80000000)));
 778
 779                         if (types != null && symbolWriter != null) {
 780                                 for (int i = 0; i < num_types; ++i)
 781                                         types [i].GenerateDebugInfo (symbolWriter);
 782                                 symbolWriter.Close ();
 783                         }
 784                 }
 785
 786                 internal string FileName {
 787                         get {
 788                                 return fqname;
 789                         }
 790                 }
 791
 792                 internal bool IsMain {
 793                         set {
 794                                 is_main = value;
 795                         }
 796                 }
 797
 798                 internal void CreateGlobalType () {
 799                         if (global_type == null)
 800                                 global_type = new TypeBuilder (this, 0, 1);
 801                 }
 802
 803                 internal override Guid GetModuleVersionId ()
 804                 {
 805                         return new Guid (guid);
 806                 }
 807
 808                 // Used by mcs, the symbol writer, and mdb through reflection
 809                 internal static Guid Mono_GetGuid (ModuleBuilder mb)
 810                 {
 811                         return mb.GetModuleVersionId ();
 812                 }
 813
 814                 void _ModuleBuilder.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 815                 {
 816                         throw new NotImplementedException ();
 817                 }
 818
 819                 void _ModuleBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 820                 {
 821                         throw new NotImplementedException ();
 822                 }
 823
 824                 void _ModuleBuilder.GetTypeInfoCount (out uint pcTInfo)
 825                 {
 826                         throw new NotImplementedException ();
 827                 }
 828
 829                 void _ModuleBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 830                 {
 831                         throw new NotImplementedException ();
 832                 }
 833
 834                 public override Assembly Assembly {
 835                         get { return assemblyb; }
 836                 }
 837
 838                 public override string Name {
 839                         get { return name; }
 840                 }
 841
 842                 public override string ScopeName {
 843                         get { return name; }
 844                 }
 845
 846                 public override Guid ModuleVersionId {
 847                         get {
 848                                 return GetModuleVersionId ();
 849                         }
 850                 }
 851
 852                 //XXX resource modules can't be defined with ModuleBuilder
 853                 public override bool IsResource ()
 854                 {
 855                         return false;
 856                 }
 857
 858                 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
 859                 {
 860                         if (global_type_created == null)
 861                                 return null;
 862                         if (types == null)
 863                                 return global_type_created.GetMethod (name);
 864                         return global_type_created.GetMethod (name, bindingAttr, binder, callConvention, types, modifiers);
 865                 }
 866
 867                 public override FieldInfo ResolveField (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 868                         ResolveTokenError error;
 869
 870                         IntPtr handle = ResolveFieldToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 871                         if (handle == IntPtr.Zero)
 872                                 throw resolve_token_exception (metadataToken, error, "Field");
 873                         else
 874                                 return FieldInfo.GetFieldFromHandle (new RuntimeFieldHandle (handle));
 875                 }
 876
 877                 public override MemberInfo ResolveMember (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 878
 879                         ResolveTokenError error;
 880
 881                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 882                         if (m == null)
 883                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
 884                         else
 885                                 return m;
 886                 }
 887
 888                 internal MemberInfo ResolveOrGetRegisteredToken (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments)
 889                 {
 890                         ResolveTokenError error;
 891                         MemberInfo m = ResolveMemberToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 892                         if (m != null)
 893                                 return m;
 894
 895                         m = GetRegisteredToken (metadataToken) as MemberInfo;
 896                         if (m == null)
 897                                 throw resolve_token_exception (metadataToken, error, "MemberInfo");
 898                         else
 899                                 return m;
 900                 }
 901
 902                 public override MethodBase ResolveMethod (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 903                         ResolveTokenError error;
 904
 905                         IntPtr handle = ResolveMethodToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 906                         if (handle == IntPtr.Zero)
 907                                 throw resolve_token_exception (metadataToken, error, "MethodBase");
 908                         else
 909                                 return MethodBase.GetMethodFromHandleNoGenericCheck (new RuntimeMethodHandle (handle));
 910                 }
 911
 912                 public override string ResolveString (int metadataToken) {
 913                         ResolveTokenError error;
 914
 915                         string s = ResolveStringToken (_impl, metadataToken, out error);
 916                         if (s == null)
 917                                 throw resolve_token_exception (metadataToken, error, "string");
 918                         else
 919                                 return s;
 920                 }
 921
 922                 public override byte[] ResolveSignature (int metadataToken) {
 923                         ResolveTokenError error;
 924
 925                     byte[] res = ResolveSignature (_impl, metadataToken, out error);
 926                         if (res == null)
 927                                 throw resolve_token_exception (metadataToken, error, "signature");
 928                         else
 929                                 return res;
 930                 }
 931
 932                 public override Type ResolveType (int metadataToken, Type [] genericTypeArguments, Type [] genericMethodArguments) {
 933                         ResolveTokenError error;
 934
 935                         IntPtr handle = ResolveTypeToken (_impl, metadataToken, ptrs_from_types (genericTypeArguments), ptrs_from_types (genericMethodArguments), out error);
 936                         if (handle == IntPtr.Zero)
 937                                 throw resolve_token_exception (metadataToken, error, "Type");
 938                         else
 939                                 return Type.GetTypeFromHandle (new RuntimeTypeHandle (handle));
 940                 }
 941
 942                 public override bool Equals (object obj)
 943                 {
 944                         return base.Equals (obj);
 945                 }
 946
 947                 public override int GetHashCode ()
 948                 {
 949                         return base.GetHashCode ();
 950                 }
 951
 952                 public override bool IsDefined (Type attributeType, bool inherit)
 953                 {
 954                         return base.IsDefined (attributeType, inherit);
 955                 }
 956
 957                 public override object[] GetCustomAttributes (bool inherit)
 958                 {
 959                         return base.GetCustomAttributes (inherit);
 960                 }
 961
 962                 public override object[] GetCustomAttributes (Type attributeType, bool inherit)
 963                 {
 964                         return base.GetCustomAttributes (attributeType, inherit);
 965                 }
 966
 967                 public override FieldInfo GetField (string name, BindingFlags bindingAttr)
 968                 {
 969                         return base.GetField (name, bindingAttr);
 970                 }
 971
 972                 public override FieldInfo[] GetFields (BindingFlags bindingFlags)
 973                 {
 974                         return base.GetFields (bindingFlags);
 975                 }
 976
 977                 public override MethodInfo[] GetMethods (BindingFlags bindingFlags)
 978                 {
 979                         return base.GetMethods (bindingFlags);
 980                 }
 981
 982                 public override int MetadataToken {
 983                         get {
 984                                 return base.MetadataToken;
 985                         }
 986                 }
 987         }
 988
 989         internal class ModuleBuilderTokenGenerator : TokenGenerator {
 990
 991                 private ModuleBuilder mb;
 992
 993                 public ModuleBuilderTokenGenerator (ModuleBuilder mb) {
 994                         this.mb = mb;
 995                 }
 996
 997                 public int GetToken (string str) {
 998                         return mb.GetToken (str);
 999                 }
1000
1001                 public int GetToken (MemberInfo member, bool create_open_instance) {
1002                         return mb.GetToken (member, create_open_instance);
1003                 }
1004
1005                 public int GetToken (MethodBase method, Type[] opt_param_types) {
1006                         return mb.GetToken (method, opt_param_types);
1007                 }
1008
1009                 public int GetToken (SignatureHelper helper) {
1010                         return mb.GetToken (helper);
1011                 }
1012         }
1013 }
1014
1015 #endif