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 using System;
  11 using System.Reflection;
  12 using System.Reflection.Emit;
  13 using System.Runtime.CompilerServices;
  14 using System.Runtime.InteropServices;
  15 using System.Globalization;
  16 using System.Collections;
  17 using System.Security;
  18 using System.Security.Permissions;
  19
  20 namespace System.Reflection.Emit {
  21         public sealed class TypeBuilder : Type {
  22         private string tname;
  23         private string nspace;
  24         private Type parent;
  25         private Type nesting_type;
  26         private Type[] interfaces;
  27         private MethodBuilder[] methods;
  28         private ConstructorBuilder[] ctors;
  29         private PropertyBuilder[] properties;
  30         private FieldBuilder[] fields;
  31         private EventBuilder[] events;
  32         private CustomAttributeBuilder[] cattrs;
  33         internal TypeBuilder[] subtypes;
  34         private TypeAttributes attrs;
  35         private int table_idx;
  36         private ModuleBuilder pmodule;
  37         private int class_size;
  38         private PackingSize packing_size;
  39         private Type created;
  40         string fullname;
  41
  42         public const int UnspecifiedTypeSize = 0;
  43
  44                 protected override TypeAttributes GetAttributeFlagsImpl () {
  45                         return attrs;
  46                 }
  47
  48                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  49                 private extern void setup_internal_class (TypeBuilder tb);
  50
  51                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  52                 private extern void create_internal_class (TypeBuilder tb);
  53
  54                 internal TypeBuilder (ModuleBuilder mb, TypeAttributes attr) {
  55                         this.parent = null;
  56                         this.attrs = attr;
  57                         this.class_size = -1;
  58                         fullname = this.tname = "<Module>";
  59                         this.nspace = "";
  60                         pmodule = mb;
  61                         setup_internal_class (this);
  62                 }
  63
  64                 internal TypeBuilder (ModuleBuilder mb, string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packing_size, int type_size) {
  65                         int sep_index;
  66                         this.parent = parent;
  67                         this.attrs = attr;
  68                         this.class_size = type_size;
  69                         this.packing_size = packing_size;
  70                         sep_index = name.LastIndexOf('.');
  71                         if (sep_index != -1) {
  72                                 this.tname = name.Substring (sep_index + 1);
  73                                 this.nspace = name.Substring (0, sep_index);
  74                         } else {
  75                                 this.tname = name;
  76                                 this.nspace = "";
  77                         }
  78                         if (interfaces != null) {
  79                                 this.interfaces = new Type[interfaces.Length];
  80                                 System.Array.Copy (interfaces, this.interfaces, interfaces.Length);
  81                         }
  82                         pmodule = mb;
  83                         // skip .<Module> ?
  84                         table_idx = mb.get_next_table_index (this, 0x02, true);
  85                         setup_internal_class (this);
  86                         fullname = GetFullName ();
  87                 }
  88
  89                 public override Assembly Assembly {
  90                         get {return pmodule.Assembly;}
  91                 }
  92                 public override string AssemblyQualifiedName {
  93                         get {
  94                                 return fullname + ", " + Assembly.ToString();
  95                         }
  96                 }
  97                 public override Type BaseType {
  98                         get {
  99                                 return parent;
 100                         }
 101                 }
 102                 public override Type DeclaringType {get {return nesting_type;}}
 103                 public override Type UnderlyingSystemType {
 104                         get {
 105                                 if (fields != null) {
 106                                         foreach (FieldBuilder f in fields) {
 107                                                 if ((f.Attributes & FieldAttributes.Static) == 0)
 108                                                         return f.FieldType;
 109                                         }
 110                                 }
 111                                 throw new InvalidOperationException (String.Format ("typebuilder: {0}", this));
 112                         }
 113                 }
 114
 115                 string GetFullName () {
 116                         if (nesting_type != null)
 117                                 return String.Concat (nesting_type.FullName, "+", tname);
 118                         if ((nspace != null) && (nspace.Length > 0))
 119                                 return String.Concat (nspace, ".", tname);
 120                         return tname;
 121                 }
 122
 123                 public override string FullName {
 124                         get {
 125                                 return fullname;
 126                         }
 127                 }
 128
 129                 public override Guid GUID {
 130                         get {return Guid.Empty;}
 131                 }
 132
 133                 public override Module Module {
 134                         get {return pmodule;}
 135                 }
 136                 public override string Name {
 137                         get {return tname;}
 138                 }
 139                 public override string Namespace {
 140                         get {return nspace;}
 141                 }
 142                 public PackingSize PackingSize {
 143                         get {return packing_size;}
 144                 }
 145                 public override Type ReflectedType {get {return nesting_type;}}
 146                 public override MemberTypes MemberType {
 147                         get {return MemberTypes.TypeInfo;}
 148                 }
 149
 150                 [MonoTODO]
 151                 public void AddDeclarativeSecurity( SecurityAction action, PermissionSet pset) {
 152                         throw new NotImplementedException ();
 153                 }
 154
 155                 public void AddInterfaceImplementation( Type interfaceType) {
 156                         if (interfaces != null) {
 157                                 Type[] ifnew = new Type [interfaces.Length + 1];
 158                                 interfaces.CopyTo (ifnew, 0);
 159                                 ifnew [interfaces.Length] = interfaceType;
 160                                 interfaces = ifnew;
 161                         } else {
 162                                 interfaces = new Type [1];
 163                                 interfaces [0] = interfaceType;
 164                         }
 165                 }
 166
 167                 [MonoTODO]
 168                 protected override ConstructorInfo GetConstructorImpl (BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers) {
 169                         throw new NotImplementedException ();
 170                 }
 171
 172                 public override bool IsDefined( Type attributeType, bool inherit) {
 173                         return false;
 174                 }
 175                 public override object[] GetCustomAttributes(bool inherit) {
 176                         return null;
 177                 }
 178                 public override object[] GetCustomAttributes(Type attributeType, bool inherit) {
 179                         return null;
 180                 }
 181
 182                 [MonoTODO]
 183                 public TypeBuilder DefineNestedType (string name) {
 184                         // FIXME: LAMESPEC: what other attributes should we use here as default?
 185                         return DefineNestedType (name, TypeAttributes.Public, pmodule.assemblyb.corlib_object_type, null);
 186                 }
 187
 188                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr) {
 189                         return DefineNestedType (name, attr, pmodule.assemblyb.corlib_object_type, null);
 190                 }
 191
 192                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent) {
 193                         return DefineNestedType (name, attr, parent, null);
 194                 }
 195
 196                 private TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, Type[] interfaces, PackingSize packsize, int typesize) {
 197                         TypeBuilder res = new TypeBuilder (pmodule, name, attr, parent, interfaces, packsize, typesize);
 198                         res.nesting_type = this;
 199                         res.fullname = res.GetFullName ();
 200                         pmodule.RegisterTypeName (res, res.fullname);
 201                         if (subtypes != null) {
 202                                 TypeBuilder[] new_types = new TypeBuilder [subtypes.Length + 1];
 203                                 System.Array.Copy (subtypes, new_types, subtypes.Length);
 204                                 new_types [subtypes.Length] = res;
 205                                 subtypes = new_types;
 206                         } else {
 207                                 subtypes = new TypeBuilder [1];
 208                                 subtypes [0] = res;
 209                         }
 210                         return res;
 211                 }
 212
 213                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, Type[] interfaces) {
 214                         return DefineNestedType (name, attr, parent, interfaces, PackingSize.Unspecified, UnspecifiedTypeSize);
 215                 }
 216
 217                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, int typesize) {
 218                         return DefineNestedType (name, attr, parent, null, PackingSize.Unspecified, typesize);
 219                 }
 220
 221                 public TypeBuilder DefineNestedType (string name, TypeAttributes attr, Type parent, PackingSize packsize) {
 222                         return DefineNestedType (name, attr, parent, null, packsize, UnspecifiedTypeSize);
 223                 }
 224
 225                 public ConstructorBuilder DefineConstructor( MethodAttributes attributes, CallingConventions callingConvention, Type[] parameterTypes) {
 226                         ConstructorBuilder cb = new ConstructorBuilder (this, attributes, callingConvention, parameterTypes);
 227                         if (ctors != null) {
 228                                 ConstructorBuilder[] new_ctors = new ConstructorBuilder [ctors.Length+1];
 229                                 System.Array.Copy (ctors, new_ctors, ctors.Length);
 230                                 new_ctors [ctors.Length] = cb;
 231                                 ctors = new_ctors;
 232                         } else {
 233                                 ctors = new ConstructorBuilder [1];
 234                                 ctors [0] = cb;
 235                         }
 236                         return cb;
 237                 }
 238
 239                 public ConstructorBuilder DefineDefaultConstructor( MethodAttributes attributes) {
 240                         return DefineConstructor (attributes, CallingConventions.Standard, null);
 241                 }
 242
 243                 public MethodBuilder DefineMethod( string name, MethodAttributes attributes, Type returnType, Type[] parameterTypes) {
 244                         return DefineMethod (name, attributes, CallingConventions.Standard, returnType, parameterTypes);
 245                 }
 246
 247                 private void append_method (MethodBuilder mb) {
 248                         if (methods != null) {
 249                                 MethodBuilder[] new_methods = new MethodBuilder [methods.Length+1];
 250                                 System.Array.Copy (methods, new_methods, methods.Length);
 251                                 new_methods [methods.Length] = mb;
 252                                 methods = new_methods;
 253                         } else {
 254                                 methods = new MethodBuilder [1];
 255                                 methods [0] = mb;
 256                         }
 257                 }
 258
 259                 public MethodBuilder DefineMethod( string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
 260                         MethodBuilder res = new MethodBuilder (this, name, attributes, callingConvention, returnType, parameterTypes);
 261                         append_method (res);
 262                         return res;
 263                 }
 264
 265                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 266                         MethodBuilder res = new MethodBuilder (this, name, attributes, callingConvention, returnType, parameterTypes,
 267                                 dllName, entryName, nativeCallConv, nativeCharSet);
 268                         append_method (res);
 269                         return res;
 270                 }
 271
 272                 public MethodBuilder DefinePInvokeMethod (string name, string dllName, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes, CallingConvention nativeCallConv, CharSet nativeCharSet) {
 273                         return DefinePInvokeMethod (name, dllName, name, attributes, callingConvention, returnType, parameterTypes,
 274                                 nativeCallConv, nativeCharSet);
 275                 }
 276
 277                 public void DefineMethodOverride( MethodInfo methodInfoBody, MethodInfo methodInfoDeclaration) {
 278                         if (methodInfoBody is MethodBuilder) {
 279                                 MethodBuilder mb = (MethodBuilder)methodInfoBody;
 280                                 mb.set_override (methodInfoDeclaration);
 281                         }
 282                 }
 283
 284                 public FieldBuilder DefineField( string fieldName, Type type, FieldAttributes attributes) {
 285                         FieldBuilder res = new FieldBuilder (this, fieldName, type, attributes);
 286                         if (fields != null) {
 287                                 FieldBuilder[] new_fields = new FieldBuilder [fields.Length+1];
 288                                 System.Array.Copy (fields, new_fields, fields.Length);
 289                                 new_fields [fields.Length] = res;
 290                                 fields = new_fields;
 291                         } else {
 292                                 fields = new FieldBuilder [1];
 293                                 fields [0] = res;
 294                                 create_internal_class (this);
 295                         }
 296                         return res;
 297                 }
 298
 299                 public PropertyBuilder DefineProperty( string name, PropertyAttributes attributes, Type returnType, Type[] parameterTypes) {
 300                         PropertyBuilder res = new PropertyBuilder (this, name, attributes, returnType, parameterTypes);
 301
 302                         if (properties != null) {
 303                                 PropertyBuilder[] new_properties = new PropertyBuilder [properties.Length+1];
 304                                 System.Array.Copy (properties, new_properties, properties.Length);
 305                                 new_properties [properties.Length] = res;
 306                                 properties = new_properties;
 307                         } else {
 308                                 properties = new PropertyBuilder [1];
 309                                 properties [0] = res;
 310                         }
 311                         return res;
 312                 }
 313
 314                 [MonoTODO]
 315                 public ConstructorBuilder DefineTypeInitializer() {
 316                         throw new NotImplementedException ();
 317                 }
 318
 319                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 320                 private extern Type create_runtime_class (TypeBuilder tb);
 321
 322                 public Type CreateType() {
 323                         /* handle nesting_type */
 324                         if (created != null) {
 325                                 string err="type already created: " + created.ToString();
 326                                 throw new InvalidOperationException (err);
 327                         }
 328                         if (methods != null) {
 329                                 foreach (MethodBuilder method in methods) {
 330                                         method.fixup ();
 331                                 }
 332                         }
 333                         if (ctors != null) {
 334                                 foreach (ConstructorBuilder ctor in ctors) {
 335                                         ctor.fixup ();
 336                                 }
 337                         }
 338                         created = create_runtime_class (this);
 339                         if (created != null)
 340                                 return created;
 341                         return this;
 342                 }
 343
 344                 public override ConstructorInfo[] GetConstructors (BindingFlags bindingAttr) {
 345                         if (ctors == null)
 346                                 return new ConstructorInfo [0];
 347                         ArrayList l = new ArrayList ();
 348                         bool match;
 349                         MethodAttributes mattrs;
 350
 351                         foreach (ConstructorBuilder c in ctors) {
 352                                 match = false;
 353                                 mattrs = c.Attributes;
 354                                 if ((mattrs & MethodAttributes.MemberAccessMask) == MethodAttributes.Public) {
 355                                         if ((bindingAttr & BindingFlags.Public) != 0)
 356                                                 match = true;
 357                                 } else {
 358                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 359                                                 match = true;
 360                                 }
 361                                 if (!match)
 362                                         continue;
 363                                 match = false;
 364                                 if ((mattrs & MethodAttributes.Static) != 0) {
 365                                         if ((bindingAttr & BindingFlags.Static) != 0)
 366                                                 match = true;
 367                                 } else {
 368                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 369                                                 match = true;
 370                                 }
 371                                 if (!match)
 372                                         continue;
 373                                 l.Add (c);
 374                         }
 375                         ConstructorInfo[] result = new ConstructorInfo [l.Count];
 376                         l.CopyTo (result);
 377                         return result;
 378                 }
 379
 380                 public override Type GetElementType () { return null; }
 381
 382                 [MonoTODO]
 383                 public override EventInfo GetEvent (string name, BindingFlags bindingAttr) {
 384                         throw new NotImplementedException ();
 385                 }
 386
 387                 public override EventInfo[] GetEvents (BindingFlags bindingAttr) {
 388                         return new EventInfo [0];
 389                 }
 390
 391                 [MonoTODO]
 392                 public override FieldInfo GetField( string name, BindingFlags bindingAttr) {
 393                         //FIXME
 394                         throw new NotImplementedException ();
 395                 }
 396
 397                 public override FieldInfo[] GetFields (BindingFlags bindingAttr) {
 398                         if (fields == null)
 399                                 return new FieldInfo [0];
 400                         ArrayList l = new ArrayList ();
 401                         bool match;
 402                         FieldAttributes mattrs;
 403
 404                         foreach (FieldInfo c in fields) {
 405                                 match = false;
 406                                 mattrs = c.Attributes;
 407                                 if ((mattrs & FieldAttributes.FieldAccessMask) == FieldAttributes.Public) {
 408                                         if ((bindingAttr & BindingFlags.Public) != 0)
 409                                                 match = true;
 410                                 } else {
 411                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 412                                                 match = true;
 413                                 }
 414                                 if (!match)
 415                                         continue;
 416                                 match = false;
 417                                 if ((mattrs & FieldAttributes.Static) != 0) {
 418                                         if ((bindingAttr & BindingFlags.Static) != 0)
 419                                                 match = true;
 420                                 } else {
 421                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 422                                                 match = true;
 423                                 }
 424                                 if (!match)
 425                                         continue;
 426                                 l.Add (c);
 427                         }
 428                         FieldInfo[] result = new FieldInfo [l.Count];
 429                         l.CopyTo (result);
 430                         return result;
 431                 }
 432
 433                 [MonoTODO]
 434                 public override Type GetInterface (string name, bool ignoreCase) {
 435                         throw new NotImplementedException ();
 436                 }
 437
 438                 public override Type[] GetInterfaces () {
 439                         if (interfaces != null) {
 440                                 Type[] ret = new Type [interfaces.Length];
 441                                 interfaces.CopyTo (ret, 0);
 442                                 return ret;
 443                         } else {
 444                                 return Type.EmptyTypes;
 445                         }
 446                 }
 447
 448                 [MonoTODO]
 449                 public override MemberInfo[] GetMembers( BindingFlags bindingAttr) {
 450                         // FIXME
 451                         throw new NotImplementedException ();
 452                 }
 453
 454                 public override MethodInfo[] GetMethods (BindingFlags bindingAttr) {
 455                         if (methods == null)
 456                                 return new MethodInfo [0];
 457                         ArrayList l = new ArrayList ();
 458                         bool match;
 459                         MethodAttributes mattrs;
 460
 461                         foreach (MethodInfo c in methods) {
 462                                 match = false;
 463                                 mattrs = c.Attributes;
 464                                 if ((mattrs & MethodAttributes.MemberAccessMask) == MethodAttributes.Public) {
 465                                         if ((bindingAttr & BindingFlags.Public) != 0)
 466                                                 match = true;
 467                                 } else {
 468                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 469                                                 match = true;
 470                                 }
 471                                 if (!match)
 472                                         continue;
 473                                 match = false;
 474                                 if ((mattrs & MethodAttributes.Static) != 0) {
 475                                         if ((bindingAttr & BindingFlags.Static) != 0)
 476                                                 match = true;
 477                                 } else {
 478                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 479                                                 match = true;
 480                                 }
 481                                 if (!match)
 482                                         continue;
 483                                 l.Add (c);
 484                         }
 485                         MethodInfo[] result = new MethodInfo [l.Count];
 486                         l.CopyTo (result);
 487                         return result;
 488                 }
 489
 490                 [MonoTODO]
 491                 protected override MethodInfo GetMethodImpl( string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers) {
 492                         // FIXME
 493                         throw new NotImplementedException ();
 494                 }
 495
 496                 [MonoTODO]
 497                 public override Type GetNestedType( string name, BindingFlags bindingAttr) {
 498                         // FIXME
 499                         throw new NotImplementedException ();
 500                 }
 501
 502                 public override Type[] GetNestedTypes (BindingFlags bindingAttr) {
 503                         bool match;
 504                         ArrayList result = new ArrayList ();
 505
 506                         if (subtypes == null)
 507                                 return Type.EmptyTypes;
 508                         foreach (TypeBuilder t in subtypes) {
 509                                 match = false;
 510                                 if ((t.attrs & TypeAttributes.VisibilityMask) == TypeAttributes.NestedPublic) {
 511                                         if ((bindingAttr & BindingFlags.Public) != 0)
 512                                                 match = true;
 513                                 } else {
 514                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 515                                                 match = true;
 516                                 }
 517                                 if (!match)
 518                                         continue;
 519                                 result.Add (t);
 520                         }
 521                         Type[] r = new Type [result.Count];
 522                         result.CopyTo (r);
 523                         return r;
 524                 }
 525
 526                 public override PropertyInfo[] GetProperties( BindingFlags bindingAttr) {
 527                         if (properties == null)
 528                                 return new PropertyInfo [0];
 529                         ArrayList l = new ArrayList ();
 530                         bool match;
 531                         MethodAttributes mattrs;
 532                         MethodInfo accessor;
 533
 534                         foreach (PropertyInfo c in properties) {
 535                                 match = false;
 536                                 accessor = c.GetGetMethod (true);
 537                                 if (accessor == null)
 538                                         accessor = c.GetSetMethod (true);
 539                                 if (accessor == null)
 540                                         continue;
 541                                 mattrs = accessor.Attributes;
 542                                 if ((mattrs & MethodAttributes.MemberAccessMask) == MethodAttributes.Public) {
 543                                         if ((bindingAttr & BindingFlags.Public) != 0)
 544                                                 match = true;
 545                                 } else {
 546                                         if ((bindingAttr & BindingFlags.NonPublic) != 0)
 547                                                 match = true;
 548                                 }
 549                                 if (!match)
 550                                         continue;
 551                                 match = false;
 552                                 if ((mattrs & MethodAttributes.Static) != 0) {
 553                                         if ((bindingAttr & BindingFlags.Static) != 0)
 554                                                 match = true;
 555                                 } else {
 556                                         if ((bindingAttr & BindingFlags.Instance) != 0)
 557                                                 match = true;
 558                                 }
 559                                 if (!match)
 560                                         continue;
 561                                 l.Add (c);
 562                         }
 563                         PropertyInfo[] result = new PropertyInfo [l.Count];
 564                         l.CopyTo (result);
 565                         return result;
 566                 }
 567
 568                 [MonoTODO]
 569                 protected override PropertyInfo GetPropertyImpl( string name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers) {
 570                         // FIXME
 571                         throw new NotImplementedException ();
 572                 }
 573
 574                 protected override bool HasElementTypeImpl () {
 575                         return IsArrayImpl() || IsByRefImpl() || IsPointerImpl ();
 576                 }
 577
 578                 [MonoTODO]
 579                 public override object InvokeMember( string name, BindingFlags invokeAttr, Binder binder, object target, object[] args, ParameterModifier[] modifiers, CultureInfo culture, string[] namedParameters) {
 580                         // FIXME
 581                         throw new NotImplementedException ();
 582                 }
 583
 584                 protected override bool IsArrayImpl () {
 585                         return type_is_subtype_of (this, typeof (System.Array), false);
 586                 }
 587                 protected override bool IsByRefImpl () {
 588                         // FIXME
 589                         return false;
 590                 }
 591                 protected override bool IsCOMObjectImpl () {
 592                         return false;
 593                 }
 594                 protected override bool IsPointerImpl () {
 595                         // FIXME
 596                         return false;
 597                 }
 598                 protected override bool IsPrimitiveImpl () {
 599                         // FIXME
 600                         return false;
 601                 }
 602                 protected override bool IsValueTypeImpl () {
 603                         return ((type_is_subtype_of (this, pmodule.assemblyb.corlib_value_type, false) || type_is_subtype_of (this, typeof(System.ValueType), false)) &&
 604                                 this != pmodule.assemblyb.corlib_value_type &&
 605                                 this != pmodule.assemblyb.corlib_enum_type);
 606                 }
 607
 608                 public override RuntimeTypeHandle TypeHandle { get { return _impl; } }
 609
 610                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 611                         string attrname = customBuilder.Ctor.ReflectedType.FullName;
 612                         if (attrname == "System.Runtime.InteropServices.StructLayoutAttribute") {
 613                                 byte[] data = customBuilder.Data;
 614                                 int layout_kind; /* the (stupid) ctor takes a short or an int ... */
 615                                 layout_kind = (int)data [2];
 616                                 layout_kind |= ((int)data [3]) << 8;
 617                                 attrs &= ~TypeAttributes.LayoutMask;
 618                                 switch ((LayoutKind)layout_kind) {
 619                                 case LayoutKind.Auto:
 620                                         attrs |= TypeAttributes.AutoLayout;
 621                                         break;
 622                                 case LayoutKind.Explicit:
 623                                         attrs |= TypeAttributes.ExplicitLayout;
 624                                         break;
 625                                 case LayoutKind.Sequential:
 626                                         attrs |= TypeAttributes.SequentialLayout;
 627                                         break;
 628                                 default:
 629                                         // we should ignore it since it can be any value anyway...
 630                                         throw new Exception ("Error in customattr");
 631                                 }
 632                                 string first_type_name = customBuilder.Ctor.GetParameters()[0].ParameterType.FullName;
 633                                 int pos = 6;
 634                                 if (first_type_name == "System.Int16")
 635                                         pos = 4;
 636                                 int nnamed = (int)data [pos++];
 637                                 nnamed |= ((int)data [pos++]) << 8;
 638                                 for (int i = 0; i < nnamed; ++i) {
 639                                         byte named_type = data [pos++];
 640                                         byte type = data [pos++];
 641                                         int len = CustomAttributeBuilder.decode_len (data, pos, out pos);
 642                                         string named_name = CustomAttributeBuilder.string_from_bytes (data, pos, len);
 643                                         pos += len;
 644                                         /* all the fields are integers in StructLayout */
 645                                         int value = (int)data [pos++];
 646                                         value |= ((int)data [pos++]) << 8;
 647                                         value |= ((int)data [pos++]) << 16;
 648                                         value |= ((int)data [pos++]) << 24;
 649                                         switch (named_name) {
 650                                         case "CharSet":
 651                                                 switch ((CharSet)value) {
 652                                                 case CharSet.None:
 653                                                 case CharSet.Ansi:
 654                                                         break;
 655                                                 case CharSet.Unicode:
 656                                                         attrs |= TypeAttributes.UnicodeClass;
 657                                                         break;
 658                                                 case CharSet.Auto:
 659                                                         attrs |= TypeAttributes.AutoClass;
 660                                                         break;
 661                                                 default:
 662                                                         break; // error out...
 663                                                 }
 664                                                 break;
 665                                         case "Pack":
 666                                                 packing_size = (PackingSize)value;
 667                                                 break;
 668                                         case "Size":
 669                                                 class_size = value;
 670                                                 break;
 671                                         default:
 672                                                 break; // error out...
 673                                         }
 674                                 }
 675                                 return;
 676                         } else if (attrname == "System.SerializableAttribute") {
 677                                 attrs |= TypeAttributes.Serializable;
 678                                 return;
 679                         }
 680                         if (cattrs != null) {
 681                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 682                                 cattrs.CopyTo (new_array, 0);
 683                                 new_array [cattrs.Length] = customBuilder;
 684                                 cattrs = new_array;
 685                         } else {
 686                                 cattrs = new CustomAttributeBuilder [1];
 687                                 cattrs [0] = customBuilder;
 688                         }
 689                 }
 690                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 691                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 692                 }
 693
 694                 public EventBuilder DefineEvent( string name, EventAttributes attributes, Type eventtype) {
 695                         EventBuilder res = new EventBuilder (this, name, attributes, eventtype);
 696                         if (events != null) {
 697                                 EventBuilder[] new_events = new EventBuilder [events.Length+1];
 698                                 System.Array.Copy (events, new_events, events.Length);
 699                                 new_events [events.Length] = res;
 700                                 events = new_events;
 701                         } else {
 702                                 events = new EventBuilder [1];
 703                                 events [0] = res;
 704                         }
 705                         return res;
 706                 }
 707
 708                 static int InitializedDataCount = 0;
 709
 710                 public FieldBuilder DefineInitializedData( string name, byte[] data, FieldAttributes attributes) {
 711                         TypeBuilder datablobtype = DefineNestedType ("$ArrayType$"+InitializedDataCount.ToString(),
 712                                 TypeAttributes.NestedPrivate|TypeAttributes.ExplicitLayout|TypeAttributes.Sealed,
 713                                 pmodule.assemblyb.corlib_value_type, null, PackingSize.Size1, data.Length);
 714                         datablobtype.packing_size = PackingSize.Size1;
 715                         datablobtype.class_size = data.Length;
 716                         datablobtype.CreateType ();
 717                         FieldBuilder res = DefineField (name, datablobtype, attributes|FieldAttributes.Assembly|FieldAttributes.Static|FieldAttributes.HasFieldRVA);
 718                         res.SetRVAData (data);
 719                         InitializedDataCount++;
 720                         return res;
 721                 }
 722
 723                 [MonoTODO]
 724                 public FieldBuilder DefineUninitializedData( string name, int size, FieldAttributes attributes) {
 725                         throw new NotImplementedException ();
 726                 }
 727
 728                 public TypeToken TypeToken {
 729                         get {
 730                                 return new TypeToken (0x02000000 | table_idx);
 731                         }
 732                 }
 733                 public void SetParent (Type parentType) {
 734                         parent = parentType;
 735                 }
 736                 internal int get_next_table_index (object obj, int table, bool inc) {
 737                         return pmodule.get_next_table_index (obj, table, inc);
 738                 }
 739
 740                 public override InterfaceMapping GetInterfaceMap (Type interfaceType)
 741                 {
 742                         if (created == null)
 743                                 throw new NotSupportedException ("This method is not implemented for incomplete types.");
 744
 745                         return created.GetInterfaceMap (interfaceType);
 746                 }
 747         }
 748 }