mcs/class/corlib/System/Type.cs

   1 //
   2 // System.Type.cs
   3 //
   4 // Author:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //
   7 // (C) 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.Diagnostics;
  34 using System.Reflection;
  35 using System.Reflection.Emit;
  36 using System.Collections;
  37 using System.Runtime.InteropServices;
  38 using System.Runtime.CompilerServices;
  39 using System.Globalization;
  40
  41 namespace System {
  42
  43         [Serializable]
  44         [ClassInterface (ClassInterfaceType.None)]
  45 #if NET_2_0
  46         [ComVisible (true)]
  47         [ComDefaultInterface (typeof (_Type))]
  48 #endif
  49         public abstract class Type : MemberInfo, IReflect, _Type, _MemberInfo {
  50
  51                 internal RuntimeTypeHandle _impl;
  52
  53                 public static readonly char Delimiter = '.';
  54                 public static readonly Type[] EmptyTypes = {};
  55                 public static readonly MemberFilter FilterAttribute = new MemberFilter (FilterAttribute_impl);
  56                 public static readonly MemberFilter FilterName = new MemberFilter (FilterName_impl);
  57                 public static readonly MemberFilter FilterNameIgnoreCase = new MemberFilter (FilterNameIgnoreCase_impl);
  58                 public static readonly object Missing;
  59
  60                 internal const BindingFlags DefaultBindingFlags =
  61                 BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance;
  62
  63                 /* implementation of the delegates for MemberFilter */
  64                 static bool FilterName_impl (MemberInfo m, object filterCriteria)
  65                 {
  66                         string name = (string) filterCriteria;
  67                 if (name == null || name.Length == 0 )
  68                                 return false; // because m.Name cannot be null or empty
  69
  70                         if (name [name.Length-1] == '*')
  71                                 return string.Compare (name, 0, m.Name, 0, name.Length-1, false, CultureInfo.InvariantCulture) == 0;
  72
  73                 return name.Equals (m.Name);
  74                 }
  75
  76                 static bool FilterNameIgnoreCase_impl (MemberInfo m, object filterCriteria)
  77                 {
  78                         string name = (string) filterCriteria;
  79                 if (name == null || name.Length == 0 )
  80                                 return false; // because m.Name cannot be null or empty
  81
  82                         if (name [name.Length-1] == '*')
  83                                 return string.Compare (name, 0, m.Name, 0, name.Length-1, true, CultureInfo.InvariantCulture) == 0;
  84
  85                         return String.Compare (name, m.Name, true, CultureInfo.InvariantCulture) == 0;
  86                 }
  87
  88                 static bool FilterAttribute_impl (MemberInfo m, object filterCriteria)
  89                 {
  90                         int flags = ((IConvertible)filterCriteria).ToInt32 (null);
  91                         if (m is MethodInfo)
  92                                 return ((int)((MethodInfo)m).Attributes & flags) != 0;
  93                         if (m is FieldInfo)
  94                                 return ((int)((FieldInfo)m).Attributes & flags) != 0;
  95                         if (m is PropertyInfo)
  96                                 return ((int)((PropertyInfo)m).Attributes & flags) != 0;
  97                         if (m is EventInfo)
  98                                 return ((int)((EventInfo)m).Attributes & flags) != 0;
  99                         return false;
 100                 }
 101
 102                 protected Type ()
 103                 {
 104                 }
 105
 106                 /// <summary>
 107                 ///   The assembly where the type is defined.
 108                 /// </summary>
 109                 public abstract Assembly Assembly {
 110                         get;
 111                 }
 112
 113                 /// <summary>
 114                 ///   Gets the fully qualified name for the type including the
 115                 ///   assembly name where the type is defined.
 116                 /// </summary>
 117                 public abstract string AssemblyQualifiedName {
 118                         get;
 119                 }
 120
 121                 /// <summary>
 122                 ///   Returns the Attributes associated with the type.
 123                 /// </summary>
 124                 public TypeAttributes Attributes {
 125                         get {
 126                                 return GetAttributeFlagsImpl ();
 127                         }
 128                 }
 129
 130                 /// <summary>
 131                 ///   Returns the basetype for this type
 132                 /// </summary>
 133                 public abstract Type BaseType {
 134                         get;
 135                 }
 136
 137                 /// <summary>
 138                 ///   Returns the class that declares the member.
 139                 /// </summary>
 140                 public override Type DeclaringType {
 141                         get {
 142                                 return null;
 143                         }
 144                 }
 145
 146                 /// <summary>
 147                 ///
 148                 /// </summary>
 149                 public static Binder DefaultBinder {
 150                         get {
 151                                 return Binder.DefaultBinder;
 152                         }
 153                 }
 154
 155                 /// <summary>
 156                 ///    The full name of the type including its namespace
 157                 /// </summary>
 158                 public abstract string FullName {
 159                         get;
 160                 }
 161
 162                 public abstract Guid GUID {
 163                         get;
 164                 }
 165
 166                 public bool HasElementType {
 167                         get {
 168                                 return HasElementTypeImpl ();
 169                         }
 170                 }
 171
 172                 public bool IsAbstract {
 173                         get {
 174                                 return (Attributes & TypeAttributes.Abstract) != 0;
 175                         }
 176                 }
 177
 178                 public bool IsAnsiClass {
 179                         get {
 180                                 return (Attributes & TypeAttributes.StringFormatMask)
 181                                 == TypeAttributes.AnsiClass;
 182                         }
 183                 }
 184
 185                 public bool IsArray {
 186                         get {
 187                                 return IsArrayImpl ();
 188                         }
 189                 }
 190
 191                 public bool IsAutoClass {
 192                         get {
 193                                 return (Attributes & TypeAttributes.StringFormatMask) == TypeAttributes.AutoClass;
 194                         }
 195                 }
 196
 197                 public bool IsAutoLayout {
 198                         get {
 199                                 return (Attributes & TypeAttributes.LayoutMask) == TypeAttributes.AutoLayout;
 200                         }
 201                 }
 202
 203                 public bool IsByRef {
 204                         get {
 205                                 return IsByRefImpl ();
 206                         }
 207                 }
 208
 209                 public bool IsClass {
 210                         get {
 211                                 if (IsInterface)
 212                                         return false;
 213
 214                                 return !IsSubclassOf (typeof (ValueType));
 215                         }
 216                 }
 217
 218                 public bool IsCOMObject {
 219                         get {
 220                                 return IsCOMObjectImpl ();
 221                         }
 222                 }
 223
 224                 public bool IsContextful {
 225                         get {
 226                                 return IsContextfulImpl ();
 227                         }
 228                 }
 229
 230                 public bool IsEnum {
 231                         get {
 232                                 return IsSubclassOf (typeof (Enum));
 233                         }
 234                 }
 235
 236                 public bool IsExplicitLayout {
 237                         get {
 238                                 return (Attributes & TypeAttributes.LayoutMask) == TypeAttributes.ExplicitLayout;
 239                         }
 240                 }
 241
 242                 public bool IsImport {
 243                         get {
 244                                 return (Attributes & TypeAttributes.Import) != 0;
 245                         }
 246                 }
 247
 248                 public bool IsInterface {
 249                         get {
 250                                 return (Attributes & TypeAttributes.ClassSemanticsMask) == TypeAttributes.Interface;
 251                         }
 252                 }
 253
 254                 public bool IsLayoutSequential {
 255                         get {
 256                                 return (Attributes & TypeAttributes.LayoutMask) == TypeAttributes.SequentialLayout;
 257                         }
 258                 }
 259
 260                 public bool IsMarshalByRef {
 261                         get {
 262                                 return IsMarshalByRefImpl ();
 263                         }
 264                 }
 265
 266                 public bool IsNestedAssembly {
 267                         get {
 268                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.NestedAssembly;
 269                         }
 270                 }
 271
 272                 public bool IsNestedFamANDAssem {
 273                         get {
 274                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.NestedFamANDAssem;
 275                         }
 276                 }
 277
 278                 public bool IsNestedFamily {
 279                         get {
 280                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.NestedFamily;
 281                         }
 282                 }
 283
 284                 public bool IsNestedFamORAssem {
 285                         get {
 286                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.NestedFamORAssem;
 287                         }
 288                 }
 289
 290                 public bool IsNestedPrivate {
 291                         get {
 292                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.NestedPrivate;
 293                         }
 294                 }
 295
 296                 public bool IsNestedPublic {
 297                         get {
 298                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.NestedPublic;
 299                         }
 300                 }
 301
 302                 public bool IsNotPublic {
 303                         get {
 304                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.NotPublic;
 305                         }
 306                 }
 307
 308                 public bool IsPointer {
 309                         get {
 310                                 return IsPointerImpl ();
 311                         }
 312                 }
 313
 314                 public bool IsPrimitive {
 315                         get {
 316                                 return IsPrimitiveImpl ();
 317                         }
 318                 }
 319
 320                 public bool IsPublic {
 321                         get {
 322                                 return (Attributes & TypeAttributes.VisibilityMask) == TypeAttributes.Public;
 323                         }
 324                 }
 325
 326                 public bool IsSealed {
 327                         get {
 328                                 return (Attributes & TypeAttributes.Sealed) != 0;
 329                         }
 330                 }
 331
 332                 public bool IsSerializable {
 333                         get {
 334                                 if ((Attributes & TypeAttributes.Serializable) != 0)
 335                                         return true;
 336
 337                                 // Enums and delegates are always serializable
 338
 339                                 Type type = UnderlyingSystemType;
 340                                 if (type == null)
 341                                         return false;
 342
 343                                 // Fast check for system types
 344                                 if (type.IsSystemType)
 345                                         return type_is_subtype_of (type, typeof (Enum), false) || type_is_subtype_of (type, typeof (Delegate), false);
 346
 347                                 // User defined types depend on this behavior
 348                                 do {
 349                                         if ((type == typeof (Enum)) || (type == typeof (Delegate)))
 350                                                 return true;
 351
 352                                         type = type.BaseType;
 353                                 } while (type != null);
 354
 355                                 return false;
 356                         }
 357                 }
 358
 359                 public bool IsSpecialName {
 360                         get {
 361                                 return (Attributes & TypeAttributes.SpecialName) != 0;
 362                         }
 363                 }
 364
 365                 public bool IsUnicodeClass {
 366                         get {
 367                                 return (Attributes & TypeAttributes.StringFormatMask) == TypeAttributes.UnicodeClass;
 368                         }
 369                 }
 370
 371                 public bool IsValueType {
 372                         get {
 373                                 return IsValueTypeImpl ();
 374                         }
 375                 }
 376
 377                 public override MemberTypes MemberType {
 378                         get {return MemberTypes.TypeInfo;}
 379                 }
 380
 381 #if NET_2_0 || BOOTSTRAP_NET_2_0
 382                 override
 383 #endif
 384                 public abstract Module Module {get;}
 385
 386                 public abstract string Namespace {get;}
 387
 388                 public override Type ReflectedType {
 389                         get {
 390                                 return null;
 391                         }
 392                 }
 393
 394                 public abstract RuntimeTypeHandle TypeHandle {get;}
 395
 396 #if NET_2_0
 397                 [ComVisible (true)]
 398 #endif
 399                 public ConstructorInfo TypeInitializer {
 400                         get {
 401                                 return GetConstructorImpl (
 402                                         BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static,
 403                                         null,
 404                                         CallingConventions.Any,
 405                                         EmptyTypes,
 406                                         null);
 407                         }
 408                 }
 409
 410                 public abstract Type UnderlyingSystemType {get;}
 411
 412                 public override bool Equals (object o)
 413                 {
 414                         if (o == null)
 415                                 return false;
 416
 417                         // TODO: return UnderlyingSystemType == o.UnderlyingSystemType;
 418                         Type cmp = o as Type;
 419                         if (cmp == null)
 420                                 return false;
 421                         return Equals (cmp);
 422                 }
 423
 424                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 425                 public extern bool Equals (Type type);
 426
 427                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 428                 private static extern Type internal_from_handle (IntPtr handle);
 429
 430                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 431                 private static extern Type internal_from_name (string name, bool throwOnError, bool ignoreCase);
 432
 433                 public static Type GetType(string typeName)
 434                 {
 435                         if (typeName == null)
 436                                 throw new ArgumentNullException ("typeName");
 437
 438                         return internal_from_name (typeName, false, false);
 439                 }
 440
 441                 public static Type GetType(string typeName, bool throwOnError)
 442                 {
 443                         if (typeName == null)
 444                                 throw new ArgumentNullException ("typeName");
 445
 446                         Type type = internal_from_name (typeName, throwOnError, false);
 447                         if (throwOnError && type == null)
 448                                 throw new TypeLoadException ("Error loading '" + typeName + "'");
 449
 450                         return type;
 451                 }
 452
 453                 public static Type GetType(string typeName, bool throwOnError, bool ignoreCase)
 454                 {
 455                         if (typeName == null)
 456                                 throw new ArgumentNullException ("typeName");
 457
 458                         Type t = internal_from_name (typeName, throwOnError, ignoreCase);
 459                         if (throwOnError && t == null)
 460                                 throw new TypeLoadException ("Error loading '" + typeName + "'");
 461
 462                         return t;
 463                 }
 464
 465                 public static Type[] GetTypeArray (object[] args) {
 466                         if (args == null)
 467                                 throw new ArgumentNullException ("args");
 468
 469                         Type[] ret;
 470                         ret = new Type [args.Length];
 471                         for (int i = 0; i < args.Length; ++i)
 472                                 ret [i] = args[i].GetType ();
 473                         return ret;
 474                 }
 475
 476                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 477                 internal extern static TypeCode GetTypeCodeInternal (Type type);
 478
 479                 public static TypeCode GetTypeCode (Type type) {
 480                         if (type == null)
 481                                 /* MS.NET returns this */
 482                                 return TypeCode.Empty;
 483
 484                         type = type.UnderlyingSystemType;
 485
 486                         if (!type.IsSystemType)
 487                                 return Type.GetTypeCode (typeof (object));
 488                         else
 489                                 return GetTypeCodeInternal (type);
 490                 }
 491
 492                 [MonoTODO]
 493                 public static Type GetTypeFromCLSID (Guid clsid)
 494                 {
 495                         throw new NotImplementedException ();
 496                 }
 497
 498                 [MonoTODO]
 499                 public static Type GetTypeFromCLSID (Guid clsid, bool throwOnError)
 500                 {
 501                         throw new NotImplementedException ();
 502                 }
 503
 504                 [MonoTODO]
 505                 public static Type GetTypeFromCLSID (Guid clsid, string server)
 506                 {
 507                         throw new NotImplementedException ();
 508                 }
 509
 510                 [MonoTODO]
 511                 public static Type GetTypeFromCLSID (Guid clsid, string server, bool throwOnError)
 512                 {
 513                         throw new NotImplementedException ();
 514                 }
 515
 516                 public static Type GetTypeFromHandle (RuntimeTypeHandle handle)
 517                 {
 518                         return internal_from_handle (handle.Value);
 519                 }
 520
 521                 [MonoTODO]
 522                 public static Type GetTypeFromProgID (string progID)
 523                 {
 524                         throw new NotImplementedException ();
 525                 }
 526
 527                 [MonoTODO]
 528                 public static Type GetTypeFromProgID (string progID, bool throwOnError)
 529                 {
 530                         throw new NotImplementedException ();
 531                 }
 532
 533                 [MonoTODO]
 534                 public static Type GetTypeFromProgID (string progID, string server)
 535                 {
 536                         throw new NotImplementedException ();
 537                 }
 538
 539                 [MonoTODO]
 540                 public static Type GetTypeFromProgID (string progID, string server, bool throwOnError)
 541                 {
 542                         throw new NotImplementedException ();
 543                 }
 544
 545                 public static RuntimeTypeHandle GetTypeHandle (object o)
 546                 {
 547                         return o.GetType().TypeHandle;
 548                 }
 549
 550                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 551                 internal static extern bool type_is_subtype_of (Type a, Type b, bool check_interfaces);
 552
 553                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 554                 internal static extern bool type_is_assignable_from (Type a, Type b);
 555
 556                 public new Type GetType ()
 557                 {
 558                         return base.GetType ();
 559                 }
 560
 561 #if NET_2_0
 562                 [ComVisible (true)]
 563 #endif
 564                 public virtual bool IsSubclassOf (Type c)
 565                 {
 566                         if (c == null || c == this)
 567                                 return false;
 568
 569                         // Fast check for system types
 570                         if (IsSystemType)
 571                                 return c.IsSystemType && type_is_subtype_of (this, c, false);
 572
 573                         // User defined types depend on this behavior
 574                         for (Type type = BaseType; type != null; type = type.BaseType)
 575                                 if (type == c)
 576                                         return true;
 577
 578                         return false;
 579                 }
 580
 581                 public virtual Type[] FindInterfaces (TypeFilter filter, object filterCriteria)
 582                 {
 583                         if (filter == null)
 584                                 throw new ArgumentNullException ("filter");
 585
 586                         ArrayList ifaces = new ArrayList ();
 587                         foreach (Type iface in GetInterfaces ()) {
 588                                 if (filter (iface, filterCriteria))
 589                                         ifaces.Add (iface);
 590                         }
 591
 592                         return (Type []) ifaces.ToArray (typeof (Type));
 593                 }
 594
 595                 public Type GetInterface (string name) {
 596                         return GetInterface (name, false);
 597                 }
 598
 599                 public abstract Type GetInterface (string name, bool ignoreCase);
 600
 601                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 602                 internal static extern void GetInterfaceMapData (Type t, Type iface, out MethodInfo[] targets, out MethodInfo[] methods);
 603
 604 #if NET_2_0
 605                 [ComVisible (true)]
 606 #endif
 607                 public virtual InterfaceMapping GetInterfaceMap (Type interfaceType) {
 608                         InterfaceMapping res;
 609                         if (interfaceType == null)
 610                                 throw new ArgumentNullException ("interfaceType");
 611                         if (!interfaceType.IsInterface)
 612                                 throw new ArgumentException (Locale.GetText ("Argument must be an interface."), "interfaceType");
 613                         res.TargetType = this;
 614                         res.InterfaceType = interfaceType;
 615                         GetInterfaceMapData (this, interfaceType, out res.TargetMethods, out res.InterfaceMethods);
 616                         if (res.TargetMethods == null)
 617                                 throw new ArgumentException (Locale.GetText ("Interface not found"), "interfaceType");
 618
 619                         return res;
 620                 }
 621
 622                 public abstract Type[] GetInterfaces ();
 623
 624                 public virtual bool IsAssignableFrom (Type c)
 625                 {
 626                         if (c == null)
 627                                 return false;
 628
 629                         if (Equals (c))
 630                                 return true;
 631
 632                         if (c is TypeBuilder)
 633                                 return ((TypeBuilder)c).IsAssignableTo (this);
 634
 635                         /* Handle user defined type classes */
 636                         if (!IsSystemType) {
 637                                 Type systemType = UnderlyingSystemType;
 638                                 if (!systemType.IsSystemType)
 639                                         return false;
 640                                 return systemType.IsAssignableFrom (c);
 641                         }
 642
 643                         if (!c.IsSystemType) {
 644                                 Type underlyingType = c.UnderlyingSystemType;
 645                                 if (!underlyingType.IsSystemType)
 646                                         return false;
 647                                 return IsAssignableFrom (underlyingType);
 648                         }
 649
 650                         return type_is_assignable_from (this, c);
 651                 }
 652
 653                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 654                 public extern virtual bool IsInstanceOfType (object o);
 655
 656                 public virtual int GetArrayRank ()
 657                 {
 658                         throw new NotSupportedException ();     // according to MSDN
 659                 }
 660
 661                 public abstract Type GetElementType ();
 662
 663                 public EventInfo GetEvent (string name)
 664                 {
 665                         return GetEvent (name, DefaultBindingFlags);
 666                 }
 667
 668                 public abstract EventInfo GetEvent (string name, BindingFlags bindingAttr);
 669
 670                 public virtual EventInfo[] GetEvents ()
 671                 {
 672                         return GetEvents (DefaultBindingFlags);
 673                 }
 674
 675                 public abstract EventInfo[] GetEvents (BindingFlags bindingAttr);
 676
 677                 public FieldInfo GetField( string name)
 678                 {
 679                         return GetField (name, DefaultBindingFlags);
 680                 }
 681
 682                 public abstract FieldInfo GetField( string name, BindingFlags bindingAttr);
 683
 684                 public FieldInfo[] GetFields ()
 685                 {
 686                         return GetFields (DefaultBindingFlags);
 687                 }
 688
 689                 public abstract FieldInfo[] GetFields (BindingFlags bindingAttr);
 690
 691                 public override int GetHashCode()
 692                 {
 693                         return (int)_impl.Value;
 694                 }
 695
 696                 public MemberInfo[] GetMember (string name)
 697                 {
 698                         return GetMember (name, DefaultBindingFlags);
 699                 }
 700
 701                 public virtual MemberInfo[] GetMember (string name, BindingFlags bindingAttr)
 702                 {
 703                         return GetMember (name, MemberTypes.All, bindingAttr);
 704                 }
 705
 706                 public virtual MemberInfo[] GetMember (string name, MemberTypes type, BindingFlags bindingAttr)
 707                 {
 708                         if ((bindingAttr & BindingFlags.IgnoreCase) != 0)
 709                                 return FindMembers (type, bindingAttr, FilterNameIgnoreCase, name);
 710                         else
 711                                 return FindMembers (type, bindingAttr, FilterName, name);
 712                 }
 713
 714                 public MemberInfo[] GetMembers ()
 715                 {
 716                         return GetMembers (DefaultBindingFlags);
 717                 }
 718
 719                 public abstract MemberInfo[] GetMembers (BindingFlags bindingAttr);
 720
 721                 public MethodInfo GetMethod (string name)
 722                 {
 723                         if (name == null)
 724                                 throw new ArgumentNullException ("name");
 725                         return GetMethodImpl (name, DefaultBindingFlags, null, CallingConventions.Any, null, null);
 726                 }
 727
 728                 public MethodInfo GetMethod (string name, BindingFlags bindingAttr)
 729                 {
 730                         if (name == null)
 731                                 throw new ArgumentNullException ("name");
 732
 733                         return GetMethodImpl (name, bindingAttr, null, CallingConventions.Any, null, null);
 734                 }
 735
 736                 public MethodInfo GetMethod (string name, Type[] types)
 737                 {
 738                         return GetMethod (name, DefaultBindingFlags, null, CallingConventions.Any, types, null);
 739                 }
 740
 741                 public MethodInfo GetMethod (string name, Type[] types, ParameterModifier[] modifiers)
 742                 {
 743                         return GetMethod (name, DefaultBindingFlags, null, CallingConventions.Any, types, modifiers);
 744                 }
 745
 746                 public MethodInfo GetMethod (string name, BindingFlags bindingAttr, Binder binder,
 747                                              Type[] types, ParameterModifier[] modifiers)
 748                 {
 749
 750                         return GetMethod (name, bindingAttr, binder, CallingConventions.Any, types, modifiers);
 751                 }
 752
 753                 public MethodInfo GetMethod (string name, BindingFlags bindingAttr, Binder binder,
 754                                              CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
 755                 {
 756                         if (name == null)
 757                                 throw new ArgumentNullException ("name");
 758                         if (types == null)
 759                                 throw new ArgumentNullException ("types");
 760
 761                         for (int i = 0; i < types.Length; i++)
 762                                 if (types[i] == null)
 763                                         throw new ArgumentNullException ("types");
 764
 765                         return GetMethodImpl (name, bindingAttr, binder, callConvention, types, modifiers);
 766                 }
 767
 768                 protected abstract MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr, Binder binder,
 769                                                              CallingConventions callConvention, Type[] types,
 770                                                              ParameterModifier[] modifiers);
 771
 772                 internal MethodInfo GetMethodImplInternal (string name, BindingFlags bindingAttr, Binder binder,
 773                                                                                                                         CallingConventions callConvention, Type[] types,
 774                                                                                                                         ParameterModifier[] modifiers)
 775                 {
 776                         return GetMethodImpl (name, bindingAttr, binder, callConvention, types, modifiers);
 777                 }
 778
 779                 internal virtual MethodInfo GetMethod (MethodInfo fromNoninstanciated)
 780                 {
 781                         throw new System.InvalidOperationException ("can only be called in generic type");
 782                 }
 783
 784                 internal virtual ConstructorInfo GetConstructor (ConstructorInfo fromNoninstanciated)
 785                 {
 786                         throw new System.InvalidOperationException ("can only be called in generic type");
 787                 }
 788
 789                 internal virtual FieldInfo GetField (FieldInfo fromNoninstanciated)
 790                 {
 791                         throw new System.InvalidOperationException ("can only be called in generic type");
 792                 }
 793
 794
 795                 public MethodInfo[] GetMethods ()
 796                 {
 797                         return GetMethods (DefaultBindingFlags);
 798                 }
 799
 800                 public abstract MethodInfo[] GetMethods (BindingFlags bindingAttr);
 801
 802                 public Type GetNestedType (string name)
 803                 {
 804                         return GetNestedType (name, DefaultBindingFlags);
 805                 }
 806
 807                 public abstract Type GetNestedType (string name, BindingFlags bindingAttr);
 808
 809                 public Type[] GetNestedTypes ()
 810                 {
 811                         return GetNestedTypes (DefaultBindingFlags);
 812                 }
 813
 814                 public abstract Type[] GetNestedTypes (BindingFlags bindingAttr);
 815
 816
 817                 public PropertyInfo[] GetProperties ()
 818                 {
 819                         return GetProperties (DefaultBindingFlags);
 820                 }
 821
 822                 public abstract PropertyInfo[] GetProperties (BindingFlags bindingAttr);
 823
 824
 825                 public PropertyInfo GetProperty (string name)
 826                 {
 827                         if (name == null)
 828                                 throw new ArgumentNullException ("name");
 829
 830                         return GetPropertyImpl (name, DefaultBindingFlags, null, null, null, null);
 831                 }
 832
 833                 public PropertyInfo GetProperty (string name, BindingFlags bindingAttr)
 834                 {
 835                         if (name == null)
 836                                 throw new ArgumentNullException ("name");
 837                         return GetPropertyImpl (name, bindingAttr, null, null, null, null);
 838                 }
 839
 840                 public PropertyInfo GetProperty (string name, Type returnType)
 841                 {
 842                         if (name == null)
 843                                 throw new ArgumentNullException ("name");
 844                         return GetPropertyImpl (name, DefaultBindingFlags, null, returnType, null, null);
 845                 }
 846
 847                 public PropertyInfo GetProperty (string name, Type[] types)
 848                 {
 849                         return GetProperty (name, DefaultBindingFlags, null, null, types, null);
 850                 }
 851
 852                 public PropertyInfo GetProperty (string name, Type returnType, Type[] types)
 853                 {
 854                         return GetProperty (name, DefaultBindingFlags, null, returnType, types, null);
 855                 }
 856
 857                 public PropertyInfo GetProperty( string name, Type returnType, Type[] types, ParameterModifier[] modifiers)
 858                 {
 859                         return GetProperty (name, DefaultBindingFlags, null, returnType, types, modifiers);
 860                 }
 861
 862                 public PropertyInfo GetProperty (string name, BindingFlags bindingAttr, Binder binder, Type returnType,
 863                                                  Type[] types, ParameterModifier[] modifiers)
 864                 {
 865                         if (name == null)
 866                                 throw new ArgumentNullException ("name");
 867                         if (types == null)
 868                                 throw new ArgumentNullException ("types");
 869
 870                         foreach (Type t in types) {
 871                                 if (t == null)
 872                                         throw new ArgumentNullException ("types");
 873                         }
 874
 875                         return GetPropertyImpl (name, bindingAttr, binder, returnType, types, modifiers);
 876                 }
 877
 878                 protected abstract PropertyInfo GetPropertyImpl (string name, BindingFlags bindingAttr, Binder binder,
 879                                                                  Type returnType, Type[] types, ParameterModifier[] modifiers);
 880
 881                 internal PropertyInfo GetPropertyImplInternal (string name, BindingFlags bindingAttr, Binder binder,
 882                                                                                                            Type returnType, Type[] types, ParameterModifier[] modifiers)
 883                 {
 884                         return GetPropertyImpl (name, bindingAttr, binder, returnType, types, modifiers);
 885                 }
 886
 887                 protected abstract ConstructorInfo GetConstructorImpl (BindingFlags bindingAttr,
 888                                                                        Binder binder,
 889                                                                        CallingConventions callConvention,
 890                                                                        Type[] types,
 891                                                                        ParameterModifier[] modifiers);
 892
 893                 protected abstract TypeAttributes GetAttributeFlagsImpl ();
 894                 protected abstract bool HasElementTypeImpl ();
 895                 protected abstract bool IsArrayImpl ();
 896                 protected abstract bool IsByRefImpl ();
 897                 protected abstract bool IsCOMObjectImpl ();
 898                 protected abstract bool IsPointerImpl ();
 899                 protected abstract bool IsPrimitiveImpl ();
 900
 901                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 902                 internal static extern bool IsArrayImpl (Type type);
 903
 904                 protected virtual bool IsValueTypeImpl ()
 905                 {
 906                         if (this == typeof (ValueType) || this == typeof (Enum))
 907                                 return false;
 908
 909                         return IsSubclassOf (typeof (ValueType));
 910                 }
 911
 912                 protected virtual bool IsContextfulImpl ()
 913                 {
 914                         return typeof (ContextBoundObject).IsAssignableFrom (this);
 915                 }
 916
 917                 protected virtual bool IsMarshalByRefImpl ()
 918                 {
 919                         return typeof (MarshalByRefObject).IsAssignableFrom (this);
 920                 }
 921
 922 #if NET_2_0
 923                 [ComVisible (true)]
 924 #endif
 925                 public ConstructorInfo GetConstructor (Type[] types)
 926                 {
 927                         return GetConstructor (DefaultBindingFlags, null, CallingConventions.Any, types, null);
 928                 }
 929
 930 #if NET_2_0
 931                 [ComVisible (true)]
 932 #endif
 933                 public ConstructorInfo GetConstructor (BindingFlags bindingAttr, Binder binder,
 934                                                        Type[] types, ParameterModifier[] modifiers)
 935                 {
 936                         return GetConstructor (bindingAttr, binder, CallingConventions.Any, types, modifiers);
 937                 }
 938
 939 #if NET_2_0
 940                 [ComVisible (true)]
 941 #endif
 942                 public ConstructorInfo GetConstructor (BindingFlags bindingAttr, Binder binder,
 943                                                        CallingConventions callConvention,
 944                                                        Type[] types, ParameterModifier[] modifiers)
 945                 {
 946                         if (types == null)
 947                                 throw new ArgumentNullException ("types");
 948
 949                         foreach (Type t in types) {
 950                                 if (t == null)
 951                                         throw new ArgumentNullException ("types");
 952                         }
 953
 954                         return GetConstructorImpl (bindingAttr, binder, callConvention, types, modifiers);
 955                 }
 956
 957 #if NET_2_0
 958                 [ComVisible (true)]
 959 #endif
 960                 public ConstructorInfo[] GetConstructors ()
 961                 {
 962                         return GetConstructors (BindingFlags.Public | BindingFlags.Instance);
 963                 }
 964
 965 #if NET_2_0
 966                 [ComVisible (true)]
 967 #endif
 968                 public abstract ConstructorInfo[] GetConstructors (BindingFlags bindingAttr);
 969
 970                 public virtual MemberInfo[] GetDefaultMembers ()
 971                 {
 972                         object [] att = GetCustomAttributes (typeof (DefaultMemberAttribute), true);
 973                         if (att.Length == 0)
 974                                 return new MemberInfo [0];
 975
 976                         MemberInfo [] member = GetMember (((DefaultMemberAttribute) att [0]).MemberName);
 977                         return (member != null) ? member : new MemberInfo [0];
 978                 }
 979
 980                 public virtual MemberInfo[] FindMembers (MemberTypes memberType, BindingFlags bindingAttr,
 981                                                          MemberFilter filter, object filterCriteria)
 982                 {
 983                         MemberInfo[] result;
 984                         ArrayList l = new ArrayList ();
 985
 986                         // Console.WriteLine ("FindMembers for {0} (Type: {1}): {2}",
 987                         // this.FullName, this.GetType().FullName, this.obj_address());
 988
 989                         if ((memberType & MemberTypes.Constructor) != 0) {
 990                                 ConstructorInfo[] c = GetConstructors (bindingAttr);
 991                                 if (filter != null) {
 992                                         foreach (MemberInfo m in c) {
 993                                                 if (filter (m, filterCriteria))
 994                                                         l.Add (m);
 995                                         }
 996                                 } else {
 997                                         l.AddRange (c);
 998                                 }
 999                         }
1000                         if ((memberType & MemberTypes.Event) != 0) {
1001                                 EventInfo[] c = GetEvents (bindingAttr);
1002                                 if (filter != null) {
1003                                         foreach (MemberInfo m in c) {
1004                                                 if (filter (m, filterCriteria))
1005                                                         l.Add (m);
1006                                         }
1007                                 } else {
1008                                         l.AddRange (c);
1009                                 }
1010                         }
1011                         if ((memberType & MemberTypes.Field) != 0) {
1012                                 FieldInfo[] c = GetFields (bindingAttr);
1013                                 if (filter != null) {
1014                                         foreach (MemberInfo m in c) {
1015                                                 if (filter (m, filterCriteria))
1016                                                         l.Add (m);
1017                                         }
1018                                 } else {
1019                                         l.AddRange (c);
1020                                 }
1021                         }
1022                         if ((memberType & MemberTypes.Method) != 0) {
1023                                 MethodInfo[] c = GetMethods (bindingAttr);
1024                                 if (filter != null) {
1025                                         foreach (MemberInfo m in c) {
1026                                                 if (filter (m, filterCriteria))
1027                                                         l.Add (m);
1028                                         }
1029                                 } else {
1030                                         l.AddRange (c);
1031                                 }
1032                         }
1033                         if ((memberType & MemberTypes.Property) != 0) {
1034                                 PropertyInfo[] c;
1035                                 int count = l.Count;
1036                                 Type ptype;
1037                                 if (filter != null) {
1038                                         ptype = this;
1039                                         while ((l.Count == count) && (ptype != null)) {
1040                                                 c = ptype.GetProperties (bindingAttr);
1041                                                 foreach (MemberInfo m in c) {
1042                                                         if (filter (m, filterCriteria))
1043                                                                 l.Add (m);
1044                                                 }
1045                                                 ptype = ptype.BaseType;
1046                                         }
1047                                 } else {
1048                                         c = GetProperties (bindingAttr);
1049                                         l.AddRange (c);
1050                                 }
1051                         }
1052                         if ((memberType & MemberTypes.NestedType) != 0) {
1053                                 Type[] c = GetNestedTypes (bindingAttr);
1054                                 if (filter != null) {
1055                                         foreach (MemberInfo m in c) {
1056                                                 if (filter (m, filterCriteria)) {
1057                                                         l.Add (m);
1058                                                 }
1059                                         }
1060                                 } else {
1061                                         l.AddRange (c);
1062                                 }
1063                         }
1064                         result = new MemberInfo [l.Count];
1065                         l.CopyTo (result);
1066                         return result;
1067                 }
1068
1069                 [DebuggerHidden]
1070                 [DebuggerStepThrough]
1071                 public object InvokeMember (string name, BindingFlags invokeAttr, Binder binder, object target, object[] args)
1072                 {
1073                         return InvokeMember (name, invokeAttr, binder, target, args, null, null, null);
1074                 }
1075
1076                 [DebuggerHidden]
1077                 [DebuggerStepThrough]
1078                 public object InvokeMember (string name, BindingFlags invokeAttr, Binder binder,
1079                                             object target, object[] args, CultureInfo culture)
1080                 {
1081                         return InvokeMember (name, invokeAttr, binder, target, args, null, culture, null);
1082                 }
1083
1084                 public abstract object InvokeMember (string name, BindingFlags invokeAttr,
1085                                                      Binder binder, object target, object[] args,
1086                                                      ParameterModifier[] modifiers,
1087                                                      CultureInfo culture, string[] namedParameters);
1088
1089                 public override string ToString()
1090                 {
1091                         return FullName;
1092                 }
1093
1094                 internal bool IsSystemType {
1095                         get {
1096                                 return _impl.Value != IntPtr.Zero;
1097                         }
1098                 }
1099
1100 #if NET_2_0 || BOOTSTRAP_NET_2_0
1101                 public virtual Type[] GetGenericArguments ()
1102                 {
1103                         throw new NotSupportedException ();
1104                 }
1105
1106                 public abstract bool ContainsGenericParameters {
1107                         get;
1108                 }
1109
1110                 public virtual extern bool IsGenericTypeDefinition {
1111                         [MethodImplAttribute(MethodImplOptions.InternalCall)]
1112                         get;
1113                 }
1114
1115                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1116                 extern Type GetGenericTypeDefinition_impl ();
1117
1118                 public virtual Type GetGenericTypeDefinition ()
1119                 {
1120                         Type res = GetGenericTypeDefinition_impl ();
1121                         if (res == null)
1122                                 throw new InvalidOperationException ();
1123
1124                         return res;
1125                 }
1126
1127                 public virtual extern bool IsGenericType {
1128                         [MethodImplAttribute(MethodImplOptions.InternalCall)]
1129                         get;
1130                 }
1131
1132                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1133                 static extern Type MakeGenericType (Type gt, Type [] types);
1134
1135                 public virtual Type MakeGenericType (params Type[] types)
1136                 {
1137                         if (types == null)
1138                                 throw new ArgumentNullException ("types");
1139                         foreach (Type t in types) {
1140                                 if (t == null)
1141                                         throw new ArgumentNullException ("types");
1142                         }
1143                         Type res = MakeGenericType (this, types);
1144                         if (res == null)
1145                                 throw new TypeLoadException ();
1146                         return res;
1147                 }
1148
1149                 public virtual bool IsGenericParameter {
1150                         get {
1151                                 return false;
1152                         }
1153                 }
1154
1155                 public bool IsNested {
1156                         get {
1157                                 return DeclaringType != null;
1158                         }
1159                 }
1160
1161                 public bool IsVisible {
1162                         get {
1163                                 if (IsNestedPublic)
1164                                         return DeclaringType.IsVisible;
1165
1166                                 return IsPublic;
1167                         }
1168                 }
1169
1170                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1171                 extern int GetGenericParameterPosition ();
1172
1173                 public virtual int GenericParameterPosition {
1174                         get {
1175                                 int res = GetGenericParameterPosition ();
1176                                 if (res < 0)
1177                                         throw new InvalidOperationException ();
1178                                 return res;
1179                         }
1180                 }
1181
1182                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1183                 extern GenericParameterAttributes GetGenericParameterAttributes ();
1184
1185                 public virtual GenericParameterAttributes GenericParameterAttributes {
1186                         get {
1187                                 if (!IsGenericParameter)
1188                                         throw new InvalidOperationException ();
1189
1190                                 return GetGenericParameterAttributes ();
1191                         }
1192                 }
1193
1194                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1195                 extern Type[] GetGenericParameterConstraints_impl ();
1196
1197                 public virtual Type[] GetGenericParameterConstraints ()
1198                 {
1199                         if (!IsGenericParameter)
1200                                 throw new InvalidOperationException ();
1201
1202                         return GetGenericParameterConstraints_impl ();
1203                 }
1204
1205                 public virtual MethodBase DeclaringMethod {
1206                         get {
1207                                 return null;
1208                         }
1209                 }
1210
1211                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1212                 extern Type make_array_type (int rank);
1213
1214                 public virtual Type MakeArrayType ()
1215                 {
1216                         return MakeArrayType (1);
1217                 }
1218
1219                 public virtual Type MakeArrayType (int rank)
1220                 {
1221                         if (rank < 1)
1222                                 throw new IndexOutOfRangeException ();
1223                         return make_array_type (rank);
1224                 }
1225
1226                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1227                 extern Type make_byref_type ();
1228
1229                 public virtual Type MakeByRefType ()
1230                 {
1231                         return make_byref_type ();
1232                 }
1233
1234                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1235                 public extern virtual Type MakePointerType ();
1236
1237                 [MonoTODO]
1238                 public static Type ReflectionOnlyGetType (string typeName,
1239                                                                                                   bool throwIfNotFound,
1240                                                                                                   bool ignoreCase)
1241                 {
1242                         throw new NotImplementedException ();
1243                 }
1244
1245                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1246                 extern void GetPacking (out int packing, out int size);
1247
1248                 public virtual StructLayoutAttribute StructLayoutAttribute {
1249                         get {
1250                                 LayoutKind kind;
1251
1252                                 if (IsLayoutSequential)
1253                                         kind = LayoutKind.Sequential;
1254                                 else if (IsExplicitLayout)
1255                                         kind = LayoutKind.Explicit;
1256                                 else
1257                                         kind = LayoutKind.Auto;
1258
1259                                 StructLayoutAttribute attr = new StructLayoutAttribute (kind);
1260
1261                                 if (IsUnicodeClass)
1262                                         attr.CharSet = CharSet.Unicode;
1263                                 else if (IsAnsiClass)
1264                                         attr.CharSet = CharSet.Ansi;
1265                                 else
1266                                         attr.CharSet = CharSet.Auto;
1267
1268                                 if (kind != LayoutKind.Auto)
1269                                         GetPacking (out attr.Pack, out attr.Size);
1270
1271                                 return attr;
1272                         }
1273                 }
1274
1275                 internal object[] GetPseudoCustomAttributes ()
1276                 {
1277                         int count = 0;
1278
1279                         /* IsSerializable returns true for delegates/enums as well */
1280                         if ((Attributes & TypeAttributes.Serializable) != 0)
1281                                 count ++;
1282                         if ((Attributes & TypeAttributes.Import) != 0)
1283                                 count ++;
1284
1285                         if (count == 0)
1286                                 return null;
1287                         object[] attrs = new object [count];
1288                         count = 0;
1289
1290                         if ((Attributes & TypeAttributes.Serializable) != 0)
1291                                 attrs [count ++] = new SerializableAttribute ();
1292                         if ((Attributes & TypeAttributes.Import) != 0)
1293                                 attrs [count ++] = new ComImportAttribute ();
1294
1295                         return attrs;
1296                 }
1297
1298 #endif
1299
1300                 void _Type.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
1301                 {
1302                         throw new NotImplementedException ();
1303                 }
1304
1305                 void _Type.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
1306                 {
1307                         throw new NotImplementedException ();
1308                 }
1309
1310                 void _Type.GetTypeInfoCount (out uint pcTInfo)
1311                 {
1312                         throw new NotImplementedException ();
1313                 }
1314
1315                 void _Type.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
1316                 {
1317                         throw new NotImplementedException ();
1318                 }
1319         }
1320 }