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

   1 //
   2 // System.Reflection.Emit/TypeBuilder.cs
   3 //
   4 // Author:
   5 //   Paolo Molaro (lupus@ximian.com)
   6 //
   7 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   8 //
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Text;
  35 using System.Reflection;
  36 using System.Reflection.Emit;
  37 using System.Runtime.CompilerServices;
  38 using System.Runtime.InteropServices;
  39 using System.Globalization;
  40 using System.Collections;
  41 using System.Security;
  42 using System.Security.Permissions;
  43 using System.Diagnostics.SymbolStore;
  44
  45 namespace System.Reflection.Emit {
  46 #if NET_2_0
  47         [ComVisible (true)]
  48         [ComDefaultInterface (typeof (_TypeBuilder))]
  49 #endif
  50         [ClassInterface (ClassInterfaceType.None)]
  51         public sealed class TypeBuilder : Type, _TypeBuilder {
  52         #region Sync with reflection.h
  53         private string tname;
  54         private string nspace;
  55         private Type parent;
  56         private Type nesting_type;
  57         private Type[] interfaces;
  58         private int num_methods;
  59         private MethodBuilder[] methods;
  60         private ConstructorBuilder[] ctors;
  61         private PropertyBuilder[] properties;
  62         private int num_fields;
  63         private FieldBuilder[] fields;
  64         private EventBuilder[] events;
  65         private CustomAttributeBuilder[] cattrs;
  66         internal TypeBuilder[] subtypes;
  67         internal TypeAttributes attrs;
  68         private int table_idx;
  69         private ModuleBuilder pmodule;
  70         private int class_size;
  71         private PackingSize packing_size;
  72         private IntPtr generic_container;
  73 #if NET_2_0 || BOOTSTRAP_NET_2_0
  74         private GenericTypeParameterBuilder[] generic_params;
  75 #else
  76         private Object generic_params; /* so offsets don't change */
  77 #endif
  78         private RefEmitPermissionSet[] permissions;
  79         private Type created;
  80         #endregion
  81         string fullname;
  82
  83         public const int UnspecifiedTypeSize = 0;
  84
  85                 protected override TypeAttributes GetAttributeFlagsImpl () {
  86                         return attrs;
  87                 }
  88
  89                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  90                 private extern void setup_internal_class (TypeBuilder tb);
  91
  92                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  93                 private extern void create_internal_class (TypeBuilder tb);
  94
  95                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  96                 private extern void setup_generic_class ();
  97
  98                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  99                 private extern void create_generic_class ();
 100
 101                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 102                 private extern EventInfo get_event_info (EventBuilder eb);
 103
 104                 internal TypeBuilder (ModuleBuilder mb, TypeAttributes attr) {
 105                         this.parent = null;
 106                         this.attrs = attr;
 107                         this.class_size = UnspecifiedTypeSize;
 108                         this.table_idx = 1;
 109                         fullname = this.tname = "<Module>";
 110                         this.nspace = "";
 111                         pmodule = mb;
 112                         setup_internal_class (this);
 113                 }
 114
 115                 internal TypeBuilder (ModuleBuilder mb, string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packing_size, int type_size, Type nesting_type) {
 116                         int sep_index;
 117                         this.parent = parent;
 118                         this.attrs = attr;
 119                         this.class_size = type_size;
 120                         this.packing_size = packing_size;
 121                         this.nesting_type = nesting_type;
 122                         sep_index = name.LastIndexOf('.');
 123                         if (sep_index != -1) {
 124                                 this.tname = name.Substring (sep_index + 1);
 125                                 this.nspace = name.Substring (0, sep_index);
 126                         } else {
 127                                 this.tname = name;
 128                                 this.nspace = "";
 129                         }
 130                         if (interfaces != null) {
 131                                 this.interfaces = new Type[interfaces.Length];
 132                                 System.Array.Copy (interfaces, this.interfaces, interfaces.Length);
 133                         }
 134                         pmodule = mb;
 135                         // skip .<Module> ?
 136                         table_idx = mb.get_next_table_index (this, 0x02, true);
 137                         setup_internal_class (this);
 138                         fullname = GetFullName ();
 139                 }
 140
 141                 public override Assembly Assembly {
 142                         get {return pmodule.Assembly;}
 143                 }
 144
 145                 public override string AssemblyQualifiedName {
 146                         get {
 147                                 return fullname + ", " + Assembly.GetName().FullName;
 148                         }
 149                 }
 150                 public override Type BaseType {
 151                         get {
 152                                 return parent;
 153                         }
 154                 }
 155                 public override Type DeclaringType {get {return nesting_type;}}
 156
 157 /*              public override bool IsSubclassOf (Type c)
 158                 {
 159                         Type t;
 160                         if (c == null)
 161                                 return false;
 162                         if (c == this)
 163                                 return false;
 164                         t = parent;
 165                         while (t != null) {
 166                                 if (c == t)
 167                                         return true;
 168                                 t = t.BaseType;
 169                         }
 170                         return false;
 171                 }*/
 172
 173                 [MonoTODO]
 174                 public override Type UnderlyingSystemType {
 175                         get {
 176
 177                                 // Return this as requested by Zoltan.
 178
 179                                 return this;
 180
 181 #if false
 182                                 // Dont know what to do with the rest, should be killed:
 183                                 // See bug: 75008.
 184                                 //
 185                                 ////// This should return the type itself for non-enum types but
 186                                 ////// that breaks mcs.
 187                                 if (fields != null) {
 188                                         foreach (FieldBuilder f in fields) {
 189                                                 if ((f != null) && (f.Attributes & FieldAttributes.Static) == 0)
 190                                                         return f.FieldType;
 191                                         }
 192                                 }
 193                                 throw new InvalidOperationException ("Underlying type information on enumeration is not specified.");
 194 #endif
 195                         }
 196                 }
 197
 198                 string GetFullName () {
 199                         if (nesting_type != null)
 200                                 return String.Concat (nesting_type.FullName, "+", tname);
 201                         if ((nspace != null) && (nspace.Length > 0))
 202                                 return String.Concat (nspace, ".", tname);
 203                         return tname;
 204                 }
 205
 206                 public override string FullName {
 207                         get {
 208                                 return fullname;
 209                         }
 210                 }
 211
 212                 public override Guid GUID {
 213                         get {
 214                                 check_created ();
 215                                 return created.GUID;
 216                         }
 217                 }
 218
 219                 public override Module Module {
 220                         get {return pmodule;}
 221                 }
 222                 public override string Name {
 223                         get {return tname;}
 224                 }
 225                 public override string Namespace {
 226                         get {return nspace;}
 227                 }
 228                 public PackingSize PackingSize {
 229                         get {return packing_size;}
 230                 }
 231                 public int Size {
 232                         get { return class_size; }
 233                 }
 234                 public override Type ReflectedType {get {return nesting_type;}}
 235
 236                 public void AddDeclarativeSecurity( SecurityAction action, PermissionSet pset) {
 237                         if (pset == null)
 238                                 throw new ArgumentNullException ("pset");
 239                         if ((action == SecurityAction.RequestMinimum) ||
 240                                 (action == SecurityAction.RequestOptional) ||
 241                                 (action == SecurityAction.RequestRefuse))
 242                                 throw new ArgumentException ("Request* values are not permitted", "action");
 243
 244                         check_not_created ();
 245
 246                         if (permissions != null) {
 247                                 /* Check duplicate actions */
 248                                 foreach (RefEmitPermissionSet set in permissions)
 249                                         if (set.action == action)
 250                                                 throw new InvalidOperationException ("Multiple permission sets specified with the same SecurityAction.");
 251
 252                                 RefEmitPermissionSet[] new_array = new RefEmitPermissionSet [permissions.Length + 1];
 253                                 permissions.CopyTo (new_array, 0);
 254                                 permissions = new_array;
 255                         }
 256                         else
 257                                 permissions = new RefEmitPermissionSet [1];
 258
 259                         permissions [permissions.Length - 1] = new RefEmitPermissionSet (action, pset.ToXml ().ToString ());
 260                         attrs |= TypeAttributes.HasSecurity;
 261                 }
 262
 263 #if NET_2_0
 264                 [ComVisible (true)]
 265 #endif
 266                 public void AddInterfaceImplementation( Type interfaceType) {
 267                         if (interfaceType == null)
 268                                 throw new ArgumentNullException ("interfaceType");
 269                         check_not_created ();
 270
 271                         if (interfaces != null) {
 272                                 // Check for duplicates
 273                                 foreach (Type t in interfaces)
 274                                         if (t == interfaceType)
 275                                                 return;
 276
 277                                 Type[] ifnew = new Type [interfaces.Length + 1];
 278                                 interfaces.CopyTo (ifnew, 0);
 279                                 ifnew [interfaces.Length] = interfaceType;
 280                                 interfaces = ifnew;
 281                         } else {
 282                                 interfaces = new Type [1];
 283                                 interfaces [0] = interfaceType;
 284                         }
 285                 }
 286
 287                 [MonoTODO]
 288                 protected override ConstructorInfo GetConstructorImpl (BindingFlags bindingAttr, Binder binder,
 289                                                                        CallingConventions callConvention, Type[] types,
 290                                                                        ParameterModifier[] modifiers)
 291                 {
 292                         check_created ();
 293
 294                         if (ctors == null)
 295                                 return null;
 296
 297                         ConstructorBuilder found = null;
 298                         int count = 0;
 299
 300                         foreach (ConstructorBuilder cb in ctors){
 301                                 if (callConvention != CallingConventions.Any && cb.CallingConvention != callConvention)
 302                                         continue;
 303                                 found = cb;
 304                                 count++;
 305                         }
 306
 307                         if (count == 0)
 308                                 return null;
 309                         if (types == null){
 310                                 if (count > 1)
 311                                         throw new AmbiguousMatchException ();
 312                                 return found;
 313                         }
 314                         MethodBase[] match = new MethodBase [count];
 315                         if (count == 1)
 316                                 match [0] = found;
 317                         else {
 318                                 count = 0;
 319                                 foreach (ConstructorInfo m in ctors) {
 320                                         if (callConvention != CallingConventions.Any && m.CallingConvention != callConvention)
 321                                                 continue;
 322                                         match [count++] = m;
 323                                 }
 324                         }
 325                         if (binder == null)
 326                                 binder = Binder.DefaultBinder;
 327                         return (ConstructorInfo)binder.SelectMethod (bindingAttr, match, types, modifiers);
 328                 }
 329
 330                 public override bool IsDefined( Type attributeType, bool inherit)
 331                 {
 332                         /*
 333                          * MS throws NotSupported here, but we can't because some corlib
 334                          * classes make calls to IsDefined.
 335                          */
 336                         return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
 337                 }
 338
 339                 public override object[] GetCustomAttributes(bool inherit)
 340                 {
 341                         check_created ();
 342
 343                         return created.GetCustomAttributes (inherit);
 344                 }
 345
 346                 public override object[] GetCustomAttributes(Type attributeType, bool inherit)
 347                 {
 348                         check_created ();
 349
 350                         return created.GetCustomAttributes (attributeType, inherit);
 351                 }
 352
 353                 public TypeBuilder DefineNestedType (string name) {
 354                         return DefineNestedType (name, TypeAttributes.NestedPrivate, pmodule.assemblyb.corlib_object_type, null);
 355                 }
 356
 357                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr) {
 358                         return DefineNestedType (name, attr, pmodule.assemblyb.corlib_object_type, null);
 359                 }
 360
 361                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent) {
 362                         return DefineNestedType (name, attr, parent, null);
 363                 }
 364
 365                 private TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, Type[] interfaces,
 366                                                       PackingSize packsize, int typesize)
 367                 {
 368                         check_name ("name", name);
 369                         // Visibility must be NestedXXX
 370                         /* This breaks mcs
 371                         if (((attrs & TypeAttributes.VisibilityMask) == TypeAttributes.Public) ||
 372                                 ((attrs & TypeAttributes.VisibilityMask) == TypeAttributes.NotPublic))
 373                                 throw new ArgumentException ("attr", "Bad type flags for nested type.");
 374                         */
 375                         if (interfaces != null)
 376                                 foreach (Type iface in interfaces)
 377                                         if (iface == null)
 378                                                 throw new ArgumentNullException ("interfaces");
 379
 380                         TypeBuilder res = new TypeBuilder (pmodule, name, attr, parent, interfaces, packsize, typesize, this);
 381                         res.fullname = res.GetFullName ();
 382                         pmodule.RegisterTypeName (res, res.fullname);
 383                         if (subtypes != null) {
 384                                 TypeBuilder[] new_types = new TypeBuilder [subtypes.Length + 1];
 385                                 System.Array.Copy (subtypes, new_types, subtypes.Length);
 386                                 new_types [subtypes.Length] = res;
 387                                 subtypes = new_types;
 388                         } else {
 389                                 subtypes = new TypeBuilder [1];
 390                                 subtypes [0] = res;
 391                         }
 392                         return res;
 393                 }
 394
 395 #if NET_2_0
 396                 [ComVisible (true)]
 397 #endif
 398                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 399                         return DefineNestedType (name, attr, parent, interfaces, PackingSize.Unspecified, UnspecifiedTypeSize);
 400                 }
 401
 402                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, int typesize) {
 403                         return DefineNestedType (name, attr, parent, null, PackingSize.Unspecified, typesize);
 404                 }
 405
 406                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 407                         return DefineNestedType (name, attr, parent, null, packsize, UnspecifiedTypeSize);
 408                 }
 409
 410 #if NET_2_0
 411                 [ComVisible (true)]
 412 #endif
 413                 public ConstructorBuilder DefineConstructor (MethodAttributes attributes, CallingConventions callingConvention, Type[] parameterTypes) {
 414                         return DefineConstructor (attributes, callingConvention, parameterTypes, null, null);
 415                 }
 416
 417 #if NET_2_0
 418                 [ComVisible (true)]
 419 #endif
 420 #if NET_2_0 || BOOTSTRAP_NET_2_0
 421                 public
 422 #else
 423                 internal
 424 #endif
 425                 ConstructorBuilder DefineConstructor (MethodAttributes attributes, CallingConventions callingConvention, Type[] parameterTypes, Type[][] requiredCustomModifiers, Type[][] optionalCustomModifiers)
 426                 {
 427                         check_not_created ();
 428                         ConstructorBuilder cb = new ConstructorBuilder (this, attributes, callingConvention, parameterTypes, requiredCustomModifiers, optionalCustomModifiers);
 429                         if (ctors != null) {
 430                                 ConstructorBuilder[] new_ctors = new ConstructorBuilder [ctors.Length+1];
 431                                 System.Array.Copy (ctors, new_ctors, ctors.Length);
 432                                 new_ctors [ctors.Length] = cb;
 433                                 ctors = new_ctors;
 434                         } else {
 435                                 ctors = new ConstructorBuilder [1];
 436                                 ctors [0] = cb;
 437                         }
 438                         return cb;
 439                 }
 440
 441 #if NET_2_0
 442                 [ComVisible (true)]
 443 #endif
 444                 public ConstructorBuilder DefineDefaultConstructor (MethodAttributes attributes)
 445                 {
 446                         Type parent_type;
 447
 448                         if (parent != null)
 449                                 parent_type = parent;
 450                         else
 451                                 parent_type = pmodule.assemblyb.corlib_object_type;
 452
 453                         ConstructorInfo parent_constructor =
 454                                 parent_type.GetConstructor (
 455                                         BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance,
 456                                         null, Type.EmptyTypes, null);
 457                         if (parent_constructor == null) {
 458                                 throw new NotSupportedException ("Parent does"
 459                                         + " not have a default constructor."
 460                                         + " The default constructor must be"
 461                                         + " explicitly defined.");
 462                         }
 463
 464                         ConstructorBuilder cb = DefineConstructor (attributes,
 465                                 CallingConventions.Standard, new Type[0]);
 466                         ILGenerator ig = cb.GetILGenerator ();
 467                         ig.Emit (OpCodes.Ldarg_0);
 468                         ig.Emit (OpCodes.Call, parent_constructor);
 469                         ig.Emit (OpCodes.Ret);
 470                         return cb;
 471                 }
 472
 473                 private void append_method (MethodBuilder mb) {
 474                         if (methods != null) {
 475                                 if (methods.Length == num_methods) {
 476                                         MethodBuilder[] new_methods = new MethodBuilder [methods.Length * 2];
 477                                         System.Array.Copy (methods, new_methods, num_methods);
 478                                         methods = new_methods;
 479                                 }
 480                         } else {
 481                                 methods = new MethodBuilder [1];
 482                         }
 483                         methods [num_methods] = mb;
 484                         num_methods ++;
 485                 }
 486
 487                 public MethodBuilder DefineMethod( string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes) {
 488                         return DefineMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 489                 }
 490
 491                 public MethodBuilder DefineMethod( string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 492                         return DefineMethod (name, attributes, callingConvention, returnType, null, null, parameterTypes, null, null);
 493                 }
 494
 495 #if NET_2_0 || BOOTSTRAP_NET_2_0
 496                 public
 497 #else
 498                 internal
 499 #endif
 500                 MethodBuilder DefineMethod( string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] returnTypeRequiredCustomModifiers, Type[] returnTypeOptionalCustomModifiers, Type[] parameterTypes, Type[][] parameterTypeRequiredCustomModifiers, Type[][] parameterTypeOptionalCustomModifiers) {
 501                         check_name ("name", name);
 502                         check_not_created ();
 503                         if (IsInterface && (
 504                                 !((attributes & MethodAttributes.Abstract) != 0) ||
 505                                 !((attributes & MethodAttributes.Virtual) != 0)))
 506                                 throw new ArgumentException ("attributes", "Interface method must be abstract and virtual.");
 507
 508                         if (returnType == null)
 509                                 returnType = pmodule.assemblyb.corlib_void_type;
 510                         MethodBuilder res = new MethodBuilder (this, name, attributes, callingConvention, returnType, returnTypeRequiredCustomModifiers, returnTypeOptionalCustomModifiers, parameterTypes, parameterTypeRequiredCustomModifiers, parameterTypeOptionalCustomModifiers);
 511                         append_method (res);
 512                         return res;
 513                 }
 514
 515                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 516                         return DefinePInvokeMethod (name, dllName, entryName, attributes, callingConvention, returnType, null, null, parameterTypes, null, null, nativeCallConv, nativeCharSet);
 517                 }
 518
 519 #if NET_2_0 || BOOTSTRAP_NET_2_0
 520                 public
 521 #else
 522                 internal
 523 #endif
 524                 MethodBuilder DefinePInvokeMethod (
 525                                                 string name,
 526                                                 string dllName,
 527                                                 string entryName, MethodAttributes attributes,
 528                                                 CallingConventions callingConvention,
 529                                                 Type returnType,
 530                                                 Type[] returnTypeRequiredCustomModifiers,
 531                                                 Type[] returnTypeOptionalCustomModifiers,
 532                                                 Type[] parameterTypes,
 533                                                 Type[][] parameterTypeRequiredCustomModifiers,
 534                                                 Type[][] parameterTypeOptionalCustomModifiers,
 535                                                 CallingConvention nativeCallConv,
 536                                                 CharSet nativeCharSet) {
 537                         check_name ("name", name);
 538                         check_name ("dllName", dllName);
 539                         check_name ("entryName", entryName);
 540                         if ((attributes & MethodAttributes.Abstract) != 0)
 541                                 throw new ArgumentException ("attributes", "PInvoke methods must be static and native and cannot be abstract.");
 542                         if (IsInterface)
 543                                 throw new ArgumentException ("PInvoke methods cannot exist on interfaces.");
 544                         check_not_created ();
 545
 546                         MethodBuilder res
 547                                 = new MethodBuilder (
 548                                                 this,
 549                                                 name,
 550                                                 attributes,
 551                                                 callingConvention,
 552                                                 returnType,
 553                                                 returnTypeRequiredCustomModifiers,
 554                                                 returnTypeOptionalCustomModifiers,
 555                                                 parameterTypes,
 556                                                 parameterTypeRequiredCustomModifiers,
 557                                                 parameterTypeOptionalCustomModifiers,
 558                                                 dllName,
 559                                                 entryName,
 560                                                 nativeCallConv,
 561                                                 nativeCharSet);
 562                         append_method (res);
 563                         return res;
 564                 }
 565
 566                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 567                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes,
 568                                 nativeCallConv, nativeCharSet);
 569                 }
 570
 571 #if NET_2_0
 572                 public MethodBuilder DefineMethod (string name, MethodAttributes attributes) {
 573                         return DefineMethod (name, attributes, CallingConventions.Standard);
 574                 }
 575
 576                 public MethodBuilder DefineMethod (string name, MethodAttributes attributes, CallingConventions callConv) {
 577                         return DefineMethod (name, attributes, callConv, null, null);
 578                 }
 579 #endif
 580
 581                 public void DefineMethodOverride( MethodInfo methodInfoBody, MethodInfo methodInfoDeclaration) {
 582                         if (methodInfoBody == null)
 583                                 throw new ArgumentNullException ("methodInfoBody");
 584                         if (methodInfoDeclaration == null)
 585                                 throw new ArgumentNullException ("methodInfoDeclaration");
 586                         check_not_created ();
 587
 588                         if (methodInfoBody is MethodBuilder) {
 589                                 MethodBuilder mb = (MethodBuilder)methodInfoBody;
 590                                 mb.set_override (methodInfoDeclaration);
 591                         }
 592                 }
 593
 594                 public FieldBuilder DefineField( string fieldName, Type type, FieldAttributes attributes) {
 595                         return DefineField (fieldName, type, null, null, attributes);
 596                 }
 597
 598 #if NET_2_0 || BOOTSTRAP_NET_2_0
 599                 public
 600 #else
 601                 internal
 602 #endif
 603             FieldBuilder DefineField (string fieldName, Type type, Type[] requiredCustomAttributes, Type[] optionalCustomAttributes, FieldAttributes attributes) {
 604                         check_name ("fieldName", fieldName);
 605                         if (type == typeof (void))
 606                                 throw new ArgumentException ("type",  "Bad field type in defining field.");
 607                         check_not_created ();
 608
 609                         FieldBuilder res = new FieldBuilder (this, fieldName, type, attributes, requiredCustomAttributes, optionalCustomAttributes);
 610                         if (fields != null) {
 611                                 if (fields.Length == num_fields) {
 612                                         FieldBuilder[] new_fields = new FieldBuilder [fields.Length * 2];
 613                                         System.Array.Copy (fields, new_fields, num_fields);
 614                                         fields = new_fields;
 615                                 }
 616                                 fields [num_fields] = res;
 617                                 num_fields ++;
 618                         } else {
 619                                 fields = new FieldBuilder [1];
 620                                 fields [0] = res;
 621                                 num_fields ++;
 622                                 create_internal_class (this);
 623                         }
 624                         return res;
 625                 }
 626
 627                 public PropertyBuilder DefineProperty( string name, PropertyAttributes attributes, Type returnType, Type[] parameterTypes) {
 628                         return DefineProperty (name, attributes, returnType, null, null, parameterTypes, null, null);
 629                 }
 630
 631 #if NET_2_0
 632                 public
 633 #else
 634                 internal
 635 #endif
 636                 PropertyBuilder DefineProperty (string name, PropertyAttributes attributes, Type returnType, Type[] returnTypeRequiredCustomModifiers, Type[] returnTypeOptionalCustomModifiers, Type[] parameterTypes, Type[][] parameterTypeRequiredCustomModifiers, Type[][] parameterTypeOptionalCustomModifiers) {
 637                         check_name ("name", name);
 638                         if (parameterTypes != null)
 639                                 foreach (Type param in parameterTypes)
 640                                         if (param == null)
 641                                                 throw new ArgumentNullException ("parameterTypes");
 642                         check_not_created ();
 643
 644                         PropertyBuilder res = new PropertyBuilder (this, name, attributes, returnType, returnTypeRequiredCustomModifiers, returnTypeOptionalCustomModifiers, parameterTypes, parameterTypeRequiredCustomModifiers, parameterTypeOptionalCustomModifiers);
 645
 646                         if (properties != null) {
 647                                 PropertyBuilder[] new_properties = new PropertyBuilder [properties.Length+1];
 648                                 System.Array.Copy (properties, new_properties, properties.Length);
 649                                 new_properties [properties.Length] = res;
 650                                 properties = new_properties;
 651                         } else {
 652                                 properties = new PropertyBuilder [1];
 653                                 properties [0] = res;
 654                         }
 655                         return res;
 656                 }
 657
 658 #if NET_2_0
 659                 [ComVisible (true)]
 660 #endif
 661                 public ConstructorBuilder DefineTypeInitializer() {
 662                         return DefineConstructor (MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.SpecialName | MethodAttributes.RTSpecialName, CallingConventions.Standard, null);
 663                 }
 664
 665                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 666                 private extern Type create_runtime_class (TypeBuilder tb);
 667
 668                 private bool is_nested_in (Type t) {
 669                         while (t != null) {
 670                                 if (t == this)
 671                                         return true;
 672                                 else
 673                                         t = t.DeclaringType;
 674                         }
 675                         return false;
 676                 }
 677
 678                 public Type CreateType() {
 679                         /* handle nesting_type */
 680                         if (created != null)
 681                                 return created;
 682
 683                         create_generic_class ();
 684
 685                         // Fire TypeResolve events for fields whose type is an unfinished
 686                         // value type.
 687                         if (fields != null) {
 688                                 foreach (FieldBuilder fb in fields) {
 689                                         if (fb == null)
 690                                                 continue;
 691                                         Type ft = fb.FieldType;
 692                                         if (!fb.IsStatic && (ft is TypeBuilder) && ft.IsValueType && (ft != this) && is_nested_in (ft)) {
 693                                                 TypeBuilder tb = (TypeBuilder)ft;
 694                                                 if (!tb.is_created) {
 695                                                         AppDomain.CurrentDomain.DoTypeResolve (tb);
 696                                                         if (!tb.is_created) {
 697                                                                 // FIXME: We should throw an exception here,
 698                                                                 // but mcs expects that the type is created
 699                                                                 // even if the exception is thrown
 700                                                                 //throw new TypeLoadException ("Could not load type " + tb);
 701                                                         }
 702                                                 }
 703                                         }
 704                                 }
 705                         }
 706
 707                         if ((parent != null) && parent.IsSealed)
 708                                 throw new TypeLoadException ("Could not load type '" + FullName + "' from assembly '" + Assembly + "' because the parent type is sealed.");
 709
 710                         if (methods != null) {
 711                                 for (int i = 0; i < num_methods; ++i)
 712                                         ((MethodBuilder)(methods[i])).fixup ();
 713                         }
 714
 715                         //
 716                         // On classes, define a default constructor if not provided
 717                         //
 718                         if (!(IsInterface || IsValueType) && (ctors == null) && (tname != "<Module>") &&
 719                                 (GetAttributeFlagsImpl () & TypeAttributes.Abstract | TypeAttributes.Sealed) != (TypeAttributes.Abstract | TypeAttributes.Sealed))
 720                                 DefineDefaultConstructor (MethodAttributes.Public);
 721
 722                         if (ctors != null){
 723                                 foreach (ConstructorBuilder ctor in ctors)
 724                                         ctor.fixup ();
 725                         }
 726
 727                         created = create_runtime_class (this);
 728                         if (created != null)
 729                                 return created;
 730                         return this;
 731                 }
 732
 733                 internal void GenerateDebugInfo (ISymbolWriter symbolWriter)
 734                 {
 735                         symbolWriter.OpenNamespace (this.Namespace);
 736
 737                         if (methods != null) {
 738                                 for (int i = 0; i < num_methods; ++i) {
 739                                         MethodBuilder metb = (MethodBuilder) methods[i];
 740                                         metb.GenerateDebugInfo (symbolWriter);
 741                                 }
 742                         }
 743
 744                         if (ctors != null) {
 745                                 foreach (ConstructorBuilder ctor in ctors)
 746                                         ctor.GenerateDebugInfo (symbolWriter);
 747                         }
 748
 749                         symbolWriter.CloseNamespace ();
 750                 }
 751
 752 #if NET_2_0
 753                 [ComVisible (true)]
 754 #endif
 755                 public override ConstructorInfo[] GetConstructors (BindingFlags bindingAttr)
 756                 {
 757                         if (ctors == null)
 758                                 return new ConstructorInfo [0];
 759                         ArrayList l = new ArrayList ();
 760                         bool match;
 761                         MethodAttributes mattrs;
 762
 763                         foreach (ConstructorBuilder c in ctors) {
 764                                 match = false;
 765                                 mattrs = c.Attributes;
 766                                 if ((mattrs & MethodAttributes.MemberAccessMask) == MethodAttributes.Public) {
 767                                         if ((bindingAttr & BindingFlags.Public) != 0)
 768                                                 match = true;
 769                                 } else {
 770                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 771                                                 match = true;
 772                                 }
 773                                 if (!match)
 774                                         continue;
 775                                 match = false;
 776                                 if ((mattrs & MethodAttributes.Static) != 0) {
 777                                         if ((bindingAttr & BindingFlags.Static) != 0)
 778                                                 match = true;
 779                                 } else {
 780                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 781                                                 match = true;
 782                                 }
 783                                 if (!match)
 784                                         continue;
 785                                 l.Add (c);
 786                         }
 787                         ConstructorInfo[] result = new ConstructorInfo [l.Count];
 788                         l.CopyTo (result);
 789                         return result;
 790                 }
 791
 792                 public override Type GetElementType () {
 793                         check_created ();
 794                         return created.GetElementType ();
 795                 }
 796
 797                 public override EventInfo GetEvent (string name, BindingFlags bindingAttr) {
 798                         check_created ();
 799                         return created.GetEvent (name, bindingAttr);
 800                 }
 801
 802                 /* Needed to keep signature compatibility with MS.NET */
 803                 public override EventInfo[] GetEvents ()
 804                 {
 805                         return GetEvents (DefaultBindingFlags);
 806                 }
 807
 808                 public override EventInfo[] GetEvents (BindingFlags bindingAttr) {
 809                         /* FIXME: mcs calls this
 810                            check_created ();
 811                         */
 812                         if (!is_created)
 813                                 return new EventInfo [0];
 814                         else
 815                                 return created.GetEvents (bindingAttr);
 816                 }
 817
 818                 // This is only used from MonoGenericInst.initialize().
 819                 internal EventInfo[] GetEvents_internal (BindingFlags bindingAttr)
 820                 {
 821                         if (events == null)
 822                                 return new EventInfo [0];
 823                         ArrayList l = new ArrayList ();
 824                         bool match;
 825                         MethodAttributes mattrs;
 826                         MethodInfo accessor;
 827
 828                         foreach (EventBuilder eb in events) {
 829                                 if (eb == null)
 830                                         continue;
 831                                 EventInfo c = get_event_info (eb);
 832                                 match = false;
 833                                 accessor = c.GetAddMethod (true);
 834                                 if (accessor == null)
 835                                         accessor = c.GetRemoveMethod (true);
 836                                 if (accessor == null)
 837                                         continue;
 838                                 mattrs = accessor.Attributes;
 839                                 if ((mattrs & MethodAttributes.MemberAccessMask) == MethodAttributes.Public) {
 840                                         if ((bindingAttr & BindingFlags.Public) != 0)
 841                                                 match = true;
 842                                 } else {
 843                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 844                                                 match = true;
 845                                 }
 846                                 if (!match)
 847                                         continue;
 848                                 match = false;
 849                                 if ((mattrs & MethodAttributes.Static) != 0) {
 850                                         if ((bindingAttr & BindingFlags.Static) != 0)
 851                                                 match = true;
 852                                 } else {
 853                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 854                                                 match = true;
 855                                 }
 856                                 if (!match)
 857                                         continue;
 858                                 l.Add (c);
 859                         }
 860                         EventInfo[] result = new EventInfo [l.Count];
 861                         l.CopyTo (result);
 862                         return result;
 863                 }
 864
 865                 public override FieldInfo GetField( string name, BindingFlags bindingAttr) {
 866                         if (fields == null)
 867                                 return null;
 868
 869                         bool match;
 870                         FieldAttributes mattrs;
 871
 872                         foreach (FieldInfo c in fields) {
 873                                 if (c == null)
 874                                         continue;
 875                                 if (c.Name != name)
 876                                         continue;
 877                                 match = false;
 878                                 mattrs = c.Attributes;
 879                                 if ((mattrs & FieldAttributes.FieldAccessMask) == FieldAttributes.Public) {
 880                                         if ((bindingAttr & BindingFlags.Public) != 0)
 881                                                 match = true;
 882                                 } else {
 883                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 884                                                 match = true;
 885                                 }
 886                                 if (!match)
 887                                         continue;
 888                                 match = false;
 889                                 if ((mattrs & FieldAttributes.Static) != 0) {
 890                                         if ((bindingAttr & BindingFlags.Static) != 0)
 891                                                 match = true;
 892                                 } else {
 893                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 894                                                 match = true;
 895                                 }
 896                                 if (!match)
 897                                         continue;
 898                                 return c;
 899                         }
 900                         return null;
 901                 }
 902
 903                 public override FieldInfo[] GetFields (BindingFlags bindingAttr) {
 904                         if (fields == null)
 905                                 return new FieldInfo [0];
 906                         ArrayList l = new ArrayList ();
 907                         bool match;
 908                         FieldAttributes mattrs;
 909
 910                         foreach (FieldInfo c in fields) {
 911                                 if (c == null)
 912                                         continue;
 913                                 match = false;
 914                                 mattrs = c.Attributes;
 915                                 if ((mattrs & FieldAttributes.FieldAccessMask) == FieldAttributes.Public) {
 916                                         if ((bindingAttr & BindingFlags.Public) != 0)
 917                                                 match = true;
 918                                 } else {
 919                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 920                                                 match = true;
 921                                 }
 922                                 if (!match)
 923                                         continue;
 924                                 match = false;
 925                                 if ((mattrs & FieldAttributes.Static) != 0) {
 926                                         if ((bindingAttr & BindingFlags.Static) != 0)
 927                                                 match = true;
 928                                 } else {
 929                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 930                                                 match = true;
 931                                 }
 932                                 if (!match)
 933                                         continue;
 934                                 l.Add (c);
 935                         }
 936                         FieldInfo[] result = new FieldInfo [l.Count];
 937                         l.CopyTo (result);
 938                         return result;
 939                 }
 940
 941                 public override Type GetInterface (string name, bool ignoreCase) {
 942                         check_created ();
 943                         return created.GetInterface (name, ignoreCase);
 944                 }
 945
 946                 public override Type[] GetInterfaces () {
 947                         if (interfaces != null) {
 948                                 Type[] ret = new Type [interfaces.Length];
 949                                 interfaces.CopyTo (ret, 0);
 950                                 return ret;
 951                         } else {
 952                                 return Type.EmptyTypes;
 953                         }
 954                 }
 955
 956                 public override MemberInfo[] GetMember (string name, MemberTypes type,
 957                                                                                                 BindingFlags bindingAttr) {
 958                         check_created ();
 959                         return created.GetMember (name, type, bindingAttr);
 960                 }
 961
 962                 public override MemberInfo[] GetMembers (BindingFlags bindingAttr) {
 963                         check_created ();
 964                         return created.GetMembers (bindingAttr);
 965                 }
 966
 967                 private MethodInfo[] GetMethodsByName (string name, BindingFlags bindingAttr, bool ignoreCase, Type reflected_type) {
 968                         MethodInfo[] candidates;
 969                         if (((bindingAttr & BindingFlags.DeclaredOnly) == 0) && (parent != null)) {
 970                                 MethodInfo[] parent_methods = parent.GetMethods (bindingAttr);
 971                                 if (methods == null)
 972                                         candidates = parent_methods;
 973                                 else {
 974                                         candidates = new MethodInfo [methods.Length + parent_methods.Length];
 975                                         parent_methods.CopyTo (candidates, 0);
 976                                         methods.CopyTo (candidates, parent_methods.Length);
 977                                 }
 978                         }
 979                         else
 980                                 candidates = methods;
 981
 982                         if (candidates == null)
 983                                 return new MethodInfo [0];
 984
 985                         ArrayList l = new ArrayList ();
 986                         bool match;
 987                         MethodAttributes mattrs;
 988
 989                         foreach (MethodInfo c in candidates) {
 990                                 if (c == null)
 991                                         continue;
 992                                 if (name != null) {
 993                                         if (String.Compare (c.Name, name, ignoreCase) != 0)
 994                                                 continue;
 995                                 }
 996                                 match = false;
 997                                 mattrs = c.Attributes;
 998                                 if ((mattrs & MethodAttributes.MemberAccessMask) == MethodAttributes.Public) {
 999                                         if ((bindingAttr & BindingFlags.Public) != 0)
1000                                                 match = true;
1001                                 } else {
1002                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
1003                                                 match = true;
1004                                 }
1005                                 if (!match)
1006                                         continue;
1007                                 match = false;
1008                                 if ((mattrs & MethodAttributes.Static) != 0) {
1009                                         if ((bindingAttr & BindingFlags.Static) != 0)
1010                                                 match = true;
1011                                 } else {
1012                                         if ((bindingAttr & BindingFlags.Instance) != 0)
1013                                                 match = true;
1014                                 }
1015                                 if (!match)
1016                                         continue;
1017                                 l.Add (c);
1018                         }
1019
1020                         MethodInfo[] result = new MethodInfo [l.Count];
1021                         l.CopyTo (result);
1022                         return result;
1023                 }
1024
1025                 public override MethodInfo[] GetMethods (BindingFlags bindingAttr) {
1026                         return GetMethodsByName (null, bindingAttr, false, this);
1027                 }
1028
1029                 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr,
1030                                                              Binder binder,
1031                                                              CallingConventions callConvention,
1032                                                              Type[] types, ParameterModifier[] modifiers)
1033                 {
1034                         check_created ();
1035
1036                         bool ignoreCase = ((bindingAttr & BindingFlags.IgnoreCase) != 0);
1037                         MethodInfo[] methods = GetMethodsByName (name, bindingAttr, ignoreCase, this);
1038                         MethodInfo found = null;
1039                         MethodBase[] match;
1040                         int typesLen = (types != null) ? types.Length : 0;
1041                         int count = 0;
1042
1043                         foreach (MethodInfo m in methods) {
1044                                 // Under MS.NET, Standard|HasThis matches Standard...
1045                                 if (callConvention != CallingConventions.Any && ((m.CallingConvention & callConvention) != callConvention))
1046                                         continue;
1047                                 found = m;
1048                                 count++;
1049                         }
1050
1051                         if (count == 0)
1052                                 return null;
1053
1054                         if (count == 1 && typesLen == 0)
1055                                 return found;
1056
1057                         match = new MethodBase [count];
1058                         if (count == 1)
1059                                 match [0] = found;
1060                         else {
1061                                 count = 0;
1062                                 foreach (MethodInfo m in methods) {
1063                                         if (callConvention != CallingConventions.Any && ((m.CallingConvention & callConvention) != callConvention))
1064                                                 continue;
1065                                         match [count++] = m;
1066                                 }
1067                         }
1068
1069                         if (types == null)
1070                                 return (MethodInfo) Binder.FindMostDerivedMatch (match);
1071
1072                         if (binder == null)
1073                                 binder = Binder.DefaultBinder;
1074
1075                         return (MethodInfo)binder.SelectMethod (bindingAttr, match, types, modifiers);
1076                 }
1077
1078                 public override Type GetNestedType( string name, BindingFlags bindingAttr) {
1079                         check_created ();
1080                         return created.GetNestedType (name, bindingAttr);
1081                 }
1082
1083                 public override Type[] GetNestedTypes (BindingFlags bindingAttr) {
1084                         bool match;
1085                         ArrayList result = new ArrayList ();
1086
1087                         if (subtypes == null)
1088                                 return Type.EmptyTypes;
1089                         foreach (TypeBuilder t in subtypes) {
1090                                 match = false;
1091                                 if ((t.attrs & TypeAttributes.VisibilityMask) == TypeAttributes.NestedPublic) {
1092                                         if ((bindingAttr & BindingFlags.Public) != 0)
1093                                                 match = true;
1094                                 } else {
1095                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
1096                                                 match = true;
1097                                 }
1098                                 if (!match)
1099                                         continue;
1100                                 result.Add (t);
1101                         }
1102                         Type[] r = new Type [result.Count];
1103                         result.CopyTo (r);
1104                         return r;
1105                 }
1106
1107                 public override PropertyInfo[] GetProperties( BindingFlags bindingAttr) {
1108                         if (properties == null)
1109                                 return new PropertyInfo [0];
1110                         ArrayList l = new ArrayList ();
1111                         bool match;
1112                         MethodAttributes mattrs;
1113                         MethodInfo accessor;
1114
1115                         foreach (PropertyInfo c in properties) {
1116                                 match = false;
1117                                 accessor = c.GetGetMethod (true);
1118                                 if (accessor == null)
1119                                         accessor = c.GetSetMethod (true);
1120                                 if (accessor == null)
1121                                         continue;
1122                                 mattrs = accessor.Attributes;
1123                                 if ((mattrs & MethodAttributes.MemberAccessMask) == MethodAttributes.Public) {
1124                                         if ((bindingAttr & BindingFlags.Public) != 0)
1125                                                 match = true;
1126                                 } else {
1127                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
1128                                                 match = true;
1129                                 }
1130                                 if (!match)
1131                                         continue;
1132                                 match = false;
1133                                 if ((mattrs & MethodAttributes.Static) != 0) {
1134                                         if ((bindingAttr & BindingFlags.Static) != 0)
1135                                                 match = true;
1136                                 } else {
1137                                         if ((bindingAttr & BindingFlags.Instance) != 0)
1138                                                 match = true;
1139                                 }
1140                                 if (!match)
1141                                         continue;
1142                                 l.Add (c);
1143                         }
1144                         PropertyInfo[] result = new PropertyInfo [l.Count];
1145                         l.CopyTo (result);
1146                         return result;
1147                 }
1148
1149                 protected override PropertyInfo GetPropertyImpl( string name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers) {
1150                         throw not_supported ();
1151                 }
1152
1153                 protected override bool HasElementTypeImpl () {
1154                         check_created ();
1155                         return created.HasElementType;
1156                 }
1157
1158                 public override object InvokeMember( string name, BindingFlags invokeAttr, Binder binder, object target, object[] args, ParameterModifier[] modifiers, CultureInfo culture, string[] namedParameters) {
1159                         check_created ();
1160                         return created.InvokeMember (name, invokeAttr, binder, target, args, modifiers, culture, namedParameters);
1161                 }
1162
1163                 protected override bool IsArrayImpl ()
1164                 {
1165                         return Type.IsArrayImpl (this);
1166                 }
1167
1168                 protected override bool IsByRefImpl () {
1169                         // FIXME
1170                         return false;
1171                 }
1172                 protected override bool IsCOMObjectImpl () {
1173                         return false;
1174                 }
1175                 protected override bool IsPointerImpl () {
1176                         // FIXME
1177                         return false;
1178                 }
1179                 protected override bool IsPrimitiveImpl () {
1180                         // FIXME
1181                         return false;
1182                 }
1183                 protected override bool IsValueTypeImpl () {
1184                         return ((type_is_subtype_of (this, pmodule.assemblyb.corlib_value_type, false) || type_is_subtype_of (this, typeof(System.ValueType), false)) &&
1185                                 this != pmodule.assemblyb.corlib_value_type &&
1186                                 this != pmodule.assemblyb.corlib_enum_type);
1187                 }
1188
1189                 public override RuntimeTypeHandle TypeHandle {
1190                         get {
1191                                 check_created ();
1192                                 return created.TypeHandle;
1193                         }
1194                 }
1195
1196                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
1197                         if (customBuilder == null)
1198                                 throw new ArgumentNullException ("customBuilder");
1199
1200                         string attrname = customBuilder.Ctor.ReflectedType.FullName;
1201                         if (attrname == "System.Runtime.InteropServices.StructLayoutAttribute") {
1202                                 byte[] data = customBuilder.Data;
1203                                 int layout_kind; /* the (stupid) ctor takes a short or an int ... */
1204                                 layout_kind = (int)data [2];
1205                                 layout_kind |= ((int)data [3]) << 8;
1206                                 attrs &= ~TypeAttributes.LayoutMask;
1207                                 switch ((LayoutKind)layout_kind) {
1208                                 case LayoutKind.Auto:
1209                                         attrs |= TypeAttributes.AutoLayout;
1210                                         break;
1211                                 case LayoutKind.Explicit:
1212                                         attrs |= TypeAttributes.ExplicitLayout;
1213                                         break;
1214                                 case LayoutKind.Sequential:
1215                                         attrs |= TypeAttributes.SequentialLayout;
1216                                         break;
1217                                 default:
1218                                         // we should ignore it since it can be any value anyway...
1219                                         throw new Exception ("Error in customattr");
1220                                 }
1221                                 string first_type_name = customBuilder.Ctor.GetParameters()[0].ParameterType.FullName;
1222                                 int pos = 6;
1223                                 if (first_type_name == "System.Int16")
1224                                         pos = 4;
1225                                 int nnamed = (int)data [pos++];
1226                                 nnamed |= ((int)data [pos++]) << 8;
1227                                 for (int i = 0; i < nnamed; ++i) {
1228                                         //byte named_type = data [pos++];
1229                                         pos ++;
1230                                         byte type = data [pos++];
1231                                         int len;
1232                                         string named_name;
1233
1234                                         if (type == 0x55) {
1235                                                 len = CustomAttributeBuilder.decode_len (data, pos, out pos);
1236                                                 //string named_typename =
1237                                                 CustomAttributeBuilder.string_from_bytes (data, pos, len);
1238                                                 pos += len;
1239                                                 // FIXME: Check that 'named_type' and 'named_typename' match, etc.
1240                                                 //        See related code/FIXME in mono/mono/metadata/reflection.c
1241                                         }
1242
1243                                         len = CustomAttributeBuilder.decode_len (data, pos, out pos);
1244                                         named_name = CustomAttributeBuilder.string_from_bytes (data, pos, len);
1245                                         pos += len;
1246                                         /* all the fields are integers in StructLayout */
1247                                         int value = (int)data [pos++];
1248                                         value |= ((int)data [pos++]) << 8;
1249                                         value |= ((int)data [pos++]) << 16;
1250                                         value |= ((int)data [pos++]) << 24;
1251                                         switch (named_name) {
1252                                         case "CharSet":
1253                                                 switch ((CharSet)value) {
1254                                                 case CharSet.None:
1255                                                 case CharSet.Ansi:
1256                                                         attrs &= ~(TypeAttributes.UnicodeClass | TypeAttributes.AutoClass);
1257                                                         break;
1258                                                 case CharSet.Unicode:
1259                                                         attrs &= ~TypeAttributes.AutoClass;
1260                                                         attrs |= TypeAttributes.UnicodeClass;
1261                                                         break;
1262                                                 case CharSet.Auto:
1263                                                         attrs &= ~TypeAttributes.UnicodeClass;
1264                                                         attrs |= TypeAttributes.AutoClass;
1265                                                         break;
1266                                                 default:
1267                                                         break; // error out...
1268                                                 }
1269                                                 break;
1270                                         case "Pack":
1271                                                 packing_size = (PackingSize)value;
1272                                                 break;
1273                                         case "Size":
1274                                                 class_size = value;
1275                                                 break;
1276                                         default:
1277                                                 break; // error out...
1278                                         }
1279                                 }
1280                                 return;
1281 #if NET_2_0
1282                         } else if (attrname == "System.Runtime.CompilerServices.SpecialNameAttribute") {
1283                                 attrs |= TypeAttributes.SpecialName;
1284                                 return;
1285 #endif
1286                         } else if (attrname == "System.SerializableAttribute") {
1287                                 attrs |= TypeAttributes.Serializable;
1288                                 return;
1289                         } else if (attrname == "System.Runtime.InteropServices.ComImportAttribute") {
1290                                 attrs |= TypeAttributes.Import;
1291                                 return;
1292                         }
1293
1294                         if (cattrs != null) {
1295                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
1296                                 cattrs.CopyTo (new_array, 0);
1297                                 new_array [cattrs.Length] = customBuilder;
1298                                 cattrs = new_array;
1299                         } else {
1300                                 cattrs = new CustomAttributeBuilder [1];
1301                                 cattrs [0] = customBuilder;
1302                         }
1303                 }
1304
1305 #if NET_2_0
1306                 [ComVisible (true)]
1307 #endif
1308                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
1309                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
1310                 }
1311
1312                 public EventBuilder DefineEvent( string name, EventAttributes attributes, Type eventtype) {
1313                         check_name ("name", name);
1314                         if (eventtype == null)
1315                                 throw new ArgumentNullException ("eventtype");
1316                         check_not_created ();
1317
1318                         EventBuilder res = new EventBuilder (this, name, attributes, eventtype);
1319                         if (events != null) {
1320                                 EventBuilder[] new_events = new EventBuilder [events.Length+1];
1321                                 System.Array.Copy (events, new_events, events.Length);
1322                                 new_events [events.Length] = res;
1323                                 events = new_events;
1324                         } else {
1325                                 events = new EventBuilder [1];
1326                                 events [0] = res;
1327                         }
1328                         return res;
1329                 }
1330
1331                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
1332                         if (data == null)
1333                                 throw new ArgumentNullException ("data");
1334                         if ((data.Length == 0) || (data.Length > 0x3f0000))
1335                                 throw new ArgumentException ("data", "Data size must be > 0 and < 0x3f0000");
1336
1337                         FieldBuilder res = DefineUninitializedData (name, data.Length, attributes);
1338                         res.SetRVAData (data);
1339
1340                         return res;
1341                 }
1342
1343                 static int UnmanagedDataCount = 0;
1344
1345                 public FieldBuilder DefineUninitializedData( string name, int size, FieldAttributes attributes) {
1346                         check_name ("name", name);
1347                         if ((size <= 0) || (size > 0x3f0000))
1348                                 throw new ArgumentException ("size", "Data size must be > 0 and < 0x3f0000");
1349                         check_not_created ();
1350
1351                         string s = "$ArrayType$"+UnmanagedDataCount.ToString();
1352                         UnmanagedDataCount++;
1353                         TypeBuilder datablobtype = DefineNestedType (s,
1354                                 TypeAttributes.NestedPrivate|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
1355                                 pmodule.assemblyb.corlib_value_type, null, PackingSize.Size1, size);
1356                         datablobtype.CreateType ();
1357                         return DefineField (name, datablobtype, attributes|FieldAttributes.Static|FieldAttributes.HasFieldRVA);
1358                 }
1359
1360                 public TypeToken TypeToken {
1361                         get {
1362                                 return new TypeToken (0x02000000 | table_idx);
1363                         }
1364                 }
1365                 public void SetParent (Type parentType) {
1366                         if (parentType == null)
1367                                 throw new ArgumentNullException ("parentType");
1368                         check_not_created ();
1369
1370                         parent = parentType;
1371                         // will just set the parent-related bits if called a second time
1372                         setup_internal_class (this);
1373                 }
1374                 internal int get_next_table_index (object obj, int table, bool inc) {
1375                         return pmodule.get_next_table_index (obj, table, inc);
1376                 }
1377
1378 #if NET_2_0
1379                 [ComVisible (true)]
1380 #endif
1381                 public override InterfaceMapping GetInterfaceMap (Type interfaceType)
1382                 {
1383                         if (created == null)
1384                                 throw new NotSupportedException ("This method is not implemented for incomplete types.");
1385
1386                         return created.GetInterfaceMap (interfaceType);
1387                 }
1388
1389                 internal bool is_created {
1390                         get {
1391                                 return created != null;
1392                         }
1393                 }
1394
1395                 private Exception not_supported ()
1396                 {
1397                         return new NotSupportedException ("The invoked member is not supported in a dynamic module.");
1398                 }
1399
1400                 private void check_not_created ()
1401                 {
1402                         if (is_created)
1403                                 throw new InvalidOperationException ("Unable to change after type has been created.");
1404                 }
1405
1406                 private void check_created ()
1407                 {
1408                         if (!is_created)
1409                                 throw not_supported ();
1410                 }
1411
1412                 private void check_name (string argName, string name)
1413                 {
1414                         if (name == null)
1415                                 throw new ArgumentNullException (argName);
1416                         if (name.Length == 0)
1417                                 throw new ArgumentException ("Empty name is not legal", argName);
1418                         if (name.IndexOf ((char)0) != -1)
1419                                 throw new ArgumentException ("Illegal name", argName);
1420                 }
1421
1422                 public override String ToString ()
1423                 {
1424                         return FullName;
1425                 }
1426
1427                 [MonoTODO]
1428                 public override bool IsAssignableFrom (Type c)
1429                 {
1430                         return base.IsAssignableFrom (c);
1431                 }
1432
1433 #if NET_2_0
1434                 [ComVisible (true)]
1435 #endif
1436                 [MonoTODO]
1437                 public override bool IsSubclassOf (Type c)
1438                 {
1439                         return base.IsSubclassOf (c);
1440                 }
1441
1442                 [MonoTODO ("arrays")]
1443                 internal bool IsAssignableTo (Type c)
1444                 {
1445                         if (c == this)
1446                                 return true;
1447
1448                         if (c.IsInterface) {
1449                                 if (interfaces == null)
1450                                         return false;
1451                                 foreach (Type t in interfaces)
1452                                         if (c.IsAssignableFrom (t))
1453                                                 return true;
1454                                 return false;
1455                         }
1456
1457                         if (parent == null)
1458                                 return c == typeof (object);
1459                         else
1460                                 return c.IsAssignableFrom (parent);
1461                 }
1462
1463 #if NET_2_0 || BOOTSTRAP_NET_2_0
1464                 public bool IsCreated () {
1465                         return is_created;
1466                 }
1467
1468                 public override Type[] GetGenericArguments ()
1469                 {
1470                         if (generic_params != null)
1471                                 return generic_params;
1472
1473                         throw new InvalidOperationException ();
1474                 }
1475
1476                 public override Type GetGenericTypeDefinition ()
1477                 {
1478                         create_generic_class ();
1479
1480                         return base.GetGenericTypeDefinition ();
1481                 }
1482
1483                 public override bool ContainsGenericParameters {
1484                         get {
1485                                 return generic_params != null;
1486                         }
1487                 }
1488
1489                 public extern override bool IsGenericParameter {
1490                         [MethodImplAttribute(MethodImplOptions.InternalCall)]
1491                         get;
1492                 }
1493
1494                 public override bool IsGenericTypeDefinition {
1495                         get {
1496                                 return generic_params != null;
1497                         }
1498                 }
1499
1500                 public override bool IsGenericType {
1501                         get { return IsGenericTypeDefinition; }
1502                 }
1503
1504                 public override int GenericParameterPosition {
1505                         get {
1506                                 throw new NotImplementedException ();
1507                         }
1508                 }
1509
1510                 public override MethodBase DeclaringMethod {
1511                         get {
1512                                 throw new NotImplementedException ();
1513                         }
1514                 }
1515
1516                 public GenericTypeParameterBuilder[] DefineGenericParameters (params string[] names)
1517                 {
1518                         setup_generic_class ();
1519
1520                         generic_params = new GenericTypeParameterBuilder [names.Length];
1521                         for (int i = 0; i < names.Length; i++)
1522                                 generic_params [i] = new GenericTypeParameterBuilder (
1523                                         this, null, names [i], i);
1524
1525                         return generic_params;
1526                 }
1527
1528                 public MethodBuilder DefineGenericMethod (string name, MethodAttributes attributes)
1529                 {
1530                         return DefineMethod (name, attributes, CallingConventions.Standard, null, null);
1531                 }
1532
1533                 public static ConstructorInfo GetConstructor (Type instanciated, ConstructorInfo ctor)
1534                 {
1535                         ConstructorInfo res = instanciated.GetConstructor (ctor);
1536                         if (res == null)
1537                                 throw new System.Exception ("constructor not found");
1538                         else
1539                                 return res;
1540                 }
1541
1542                 public static MethodInfo GetMethod (Type instanciated, MethodInfo meth)
1543                 {
1544                         MethodInfo res = instanciated.GetMethod (meth);
1545                         if (res == null)
1546                                 throw new System.Exception ("method not found");
1547                         else
1548                                 return res;
1549                 }
1550
1551                 public static FieldInfo GetField (Type instanciated, FieldInfo fld)
1552                 {
1553                         FieldInfo res = instanciated.GetField (fld);
1554                         if (res == null)
1555                                 throw new System.Exception ("field not found");
1556                         else
1557                                 return res;
1558                 }
1559 #endif
1560
1561                 void _TypeBuilder.GetIDsOfNames([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
1562                 {
1563                         throw new NotImplementedException ();
1564                 }
1565
1566                 void _TypeBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
1567                 {
1568                         throw new NotImplementedException ();
1569                 }
1570
1571                 void _TypeBuilder.GetTypeInfoCount (out uint pcTInfo)
1572                 {
1573                         throw new NotImplementedException ();
1574                 }
1575
1576                 void _TypeBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
1577                 {
1578                         throw new NotImplementedException ();
1579                 }
1580         }
1581 }