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

   1 //
   2 // System.Reflection.Emit/MethodBuilder.cs
   3 //
   4 // Author:
   5 //   Paolo Molaro (lupus@ximian.com)
   6 //
   7 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   8 //
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Reflection;
  35 using System.Reflection.Emit;
  36 using System.Globalization;
  37 using System.Security;
  38 using System.Security.Permissions;
  39 using System.Runtime.CompilerServices;
  40 using System.Runtime.InteropServices;
  41 using System.Diagnostics.SymbolStore;
  42
  43 namespace System.Reflection.Emit
  44 {
  45         [ComVisible (true)]
  46         [ComDefaultInterface (typeof (_MethodBuilder))]
  47         [ClassInterface (ClassInterfaceType.None)]
  48         public sealed class MethodBuilder : MethodInfo, _MethodBuilder
  49         {
  50 #pragma warning disable 169, 414
  51                 private RuntimeMethodHandle mhandle;
  52                 private Type rtype;
  53                 internal Type[] parameters;
  54                 private MethodAttributes attrs; /* It's used directly by MCS */
  55                 private MethodImplAttributes iattrs;
  56                 private string name;
  57                 private int table_idx;
  58                 private byte[] code;
  59                 private ILGenerator ilgen;
  60                 private TypeBuilder type;
  61                 internal ParameterBuilder[] pinfo;
  62                 private CustomAttributeBuilder[] cattrs;
  63                 private MethodInfo override_method;
  64                 private string pi_dll;
  65                 private string pi_entry;
  66                 private CharSet charset;
  67                 private uint extra_flags; /* this encodes set_last_error etc */
  68                 private CallingConvention native_cc;
  69                 private CallingConventions call_conv;
  70                 private bool init_locals = true;
  71                 private IntPtr generic_container;
  72                 internal GenericTypeParameterBuilder[] generic_params;
  73                 private Type[] returnModReq;
  74                 private Type[] returnModOpt;
  75                 private Type[][] paramModReq;
  76                 private Type[][] paramModOpt;
  77                 private RefEmitPermissionSet[] permissions;
  78 #pragma warning restore 169, 414
  79
  80                 internal MethodBuilder (TypeBuilder tb, string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] returnModReq, Type[] returnModOpt, Type[] parameterTypes, Type[][] paramModReq, Type[][] paramModOpt)
  81                 {
  82                         this.name = name;
  83                         this.attrs = attributes;
  84                         this.call_conv = callingConvention;
  85                         this.rtype = returnType;
  86                         this.returnModReq = returnModReq;
  87                         this.returnModOpt = returnModOpt;
  88                         this.paramModReq = paramModReq;
  89                         this.paramModOpt = paramModOpt;
  90                         // The MSDN docs does not specify this, but the MS MethodBuilder
  91                         // appends a HasThis flag if the method is not static
  92                         if ((attributes & MethodAttributes.Static) == 0)
  93                                 this.call_conv |= CallingConventions.HasThis;
  94                         if (parameterTypes != null) {
  95                                 for (int i = 0; i < parameterTypes.Length; ++i)
  96                                         if (parameterTypes [i] == null)
  97                                                 throw new ArgumentException ("Elements of the parameterTypes array cannot be null", "parameterTypes");
  98
  99                                 this.parameters = new Type [parameterTypes.Length];
 100                                 System.Array.Copy (parameterTypes, this.parameters, parameterTypes.Length);
 101                         }
 102                         type = tb;
 103                         table_idx = get_next_table_index (this, 0x06, true);
 104
 105                         ((ModuleBuilder)tb.Module).RegisterToken (this, GetToken ().Token);
 106                 }
 107
 108                 internal MethodBuilder (TypeBuilder tb, string name, MethodAttributes attributes,
 109                                                                 CallingConventions callingConvention, Type returnType, Type[] returnModReq, Type[] returnModOpt, Type[] parameterTypes, Type[][] paramModReq, Type[][] paramModOpt,
 110                         String dllName, String entryName, CallingConvention nativeCConv, CharSet nativeCharset)
 111                         : this (tb, name, attributes, callingConvention, returnType, returnModReq, returnModOpt, parameterTypes, paramModReq, paramModOpt)
 112                 {
 113                         pi_dll = dllName;
 114                         pi_entry = entryName;
 115                         native_cc = nativeCConv;
 116                         charset = nativeCharset;
 117                 }
 118
 119                 public override bool ContainsGenericParameters {
 120                         get { throw new NotSupportedException (); }
 121                 }
 122
 123                 public bool InitLocals {
 124                         get {return init_locals;}
 125                         set {init_locals = value;}
 126                 }
 127
 128                 internal TypeBuilder TypeBuilder {
 129                         get {return type;}
 130                 }
 131
 132                 public override RuntimeMethodHandle MethodHandle {
 133                         get {
 134                                 throw NotSupported ();
 135                         }
 136                 }
 137
 138                 public override Type ReturnType {
 139                         get { return rtype; }
 140                 }
 141
 142                 public override Type ReflectedType {
 143                         get { return type; }
 144                 }
 145
 146                 public override Type DeclaringType {
 147                         get { return type; }
 148                 }
 149
 150                 public override string Name {
 151                         get { return name; }
 152                 }
 153
 154                 public override MethodAttributes Attributes {
 155                         get { return attrs; }
 156                 }
 157
 158                 public override ICustomAttributeProvider ReturnTypeCustomAttributes {
 159                         get { return null; }
 160                 }
 161
 162                 public override CallingConventions CallingConvention {
 163                         get { return call_conv; }
 164                 }
 165
 166                 [MonoTODO("Not implemented")]
 167                 public string Signature {
 168                         get {
 169                                 throw new NotImplementedException ();
 170                         }
 171                 }
 172
 173                 /* Used by mcs */
 174                 internal bool BestFitMapping {
 175                         set {
 176                                 extra_flags = (uint) ((extra_flags & ~0x30) | (uint)(value ? 0x10 : 0x20));
 177                         }
 178                 }
 179
 180                 /* Used by mcs */
 181                 internal bool ThrowOnUnmappableChar {
 182                         set {
 183                                 extra_flags = (uint) ((extra_flags & ~0x3000) | (uint)(value ? 0x1000 : 0x2000));
 184                         }
 185                 }
 186
 187                 /* Used by mcs */
 188                 internal bool ExactSpelling {
 189                         set {
 190                                 extra_flags = (uint) ((extra_flags & ~0x01) | (uint)(value ? 0x01 : 0x00));
 191                         }
 192                 }
 193
 194                 /* Used by mcs */
 195                 internal bool SetLastError {
 196                         set {
 197                                 extra_flags = (uint) ((extra_flags & ~0x40) | (uint)(value ? 0x40 : 0x00));
 198                         }
 199                 }
 200
 201                 public MethodToken GetToken()
 202                 {
 203                         return new MethodToken(0x06000000 | table_idx);
 204                 }
 205
 206                 public override MethodInfo GetBaseDefinition()
 207                 {
 208                         return this;
 209                 }
 210
 211                 public override MethodImplAttributes GetMethodImplementationFlags()
 212                 {
 213                         return iattrs;
 214                 }
 215
 216                 public override ParameterInfo[] GetParameters()
 217                 {
 218                         if (!type.is_created)
 219                                 throw NotSupported ();
 220                         if (parameters == null)
 221                                 return null;
 222
 223                         ParameterInfo[] retval = new ParameterInfo [parameters.Length];
 224                         for (int i = 0; i < parameters.Length; i++) {
 225                                 retval [i] = new ParameterInfo (pinfo == null ? null : pinfo [i + 1], parameters [i], this, i + 1);
 226                         }
 227                         return retval;
 228                 }
 229
 230                 internal override int GetParameterCount ()
 231                 {
 232                         if (parameters == null)
 233                                 return 0;
 234
 235                         return parameters.Length;
 236                 }
 237
 238                 public Module GetModule ()
 239                 {
 240                         return type.Module;
 241                 }
 242
 243                 public void CreateMethodBody (byte[] il, int count)
 244                 {
 245                         if ((il != null) && ((count < 0) || (count > il.Length)))
 246                                 throw new ArgumentOutOfRangeException ("Index was out of range.  Must be non-negative and less than the size of the collection.");
 247
 248                         if ((code != null) || type.is_created)
 249                                 throw new InvalidOperationException ("Type definition of the method is complete.");
 250
 251                         if (il == null)
 252                                 code = null;
 253                         else {
 254                                 code = new byte [count];
 255                                 System.Array.Copy(il, code, count);
 256                         }
 257                 }
 258
 259                 public override Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
 260                 {
 261                         throw NotSupported ();
 262                 }
 263
 264                 public override bool IsDefined (Type attributeType, bool inherit)
 265                 {
 266                         throw NotSupported ();
 267                 }
 268
 269                 public override object[] GetCustomAttributes (bool inherit)
 270                 {
 271                         /*
 272                          * On MS.NET, this always returns not_supported, but we can't do this
 273                          * since there would be no way to obtain custom attributes of
 274                          * dynamically created ctors.
 275                          */
 276                         if (type.is_created)
 277                                 return MonoCustomAttrs.GetCustomAttributes (this, inherit);
 278                         else
 279                                 throw NotSupported ();
 280                 }
 281
 282                 public override object[] GetCustomAttributes (Type attributeType, bool inherit)
 283                 {
 284                         if (type.is_created)
 285                                 return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
 286                         else
 287                                 throw NotSupported ();
 288                 }
 289
 290                 public ILGenerator GetILGenerator ()
 291                 {
 292                         return GetILGenerator (64);
 293                 }
 294
 295                 public ILGenerator GetILGenerator (int size)
 296                 {
 297                         if (((iattrs & MethodImplAttributes.CodeTypeMask) !=
 298                                  MethodImplAttributes.IL) ||
 299                                 ((iattrs & MethodImplAttributes.ManagedMask) !=
 300                                  MethodImplAttributes.Managed))
 301                                 throw new InvalidOperationException ("Method body should not exist.");
 302                         if (ilgen != null)
 303                                 return ilgen;
 304                         ilgen = new ILGenerator (type.Module, ((ModuleBuilder)type.Module).GetTokenGenerator (), size);
 305                         return ilgen;
 306                 }
 307
 308                 public ParameterBuilder DefineParameter (int position, ParameterAttributes attributes, string strParamName)
 309                 {
 310                         RejectIfCreated ();
 311
 312                         //
 313                         // Extension: Mono allows position == 0 for the return attribute
 314                         //
 315                         if ((position < 0) || (position > parameters.Length))
 316                                 throw new ArgumentOutOfRangeException ("position");
 317
 318                         ParameterBuilder pb = new ParameterBuilder (this, position, attributes, strParamName);
 319                         if (pinfo == null)
 320                                 pinfo = new ParameterBuilder [parameters.Length + 1];
 321                         pinfo [position] = pb;
 322                         return pb;
 323                 }
 324
 325                 internal void check_override ()
 326                 {
 327                         if (override_method != null && override_method.IsVirtual && !IsVirtual)
 328                                 throw new TypeLoadException (String.Format("Method '{0}' override '{1}' but it is not virtual", name, override_method));
 329                 }
 330
 331                 internal void fixup ()
 332                 {
 333                         if (((attrs & (MethodAttributes.Abstract | MethodAttributes.PinvokeImpl)) == 0) && ((iattrs & (MethodImplAttributes.Runtime | MethodImplAttributes.InternalCall)) == 0)) {
 334                                 // do not allow zero length method body on MS.NET 2.0 (and higher)
 335                                 if (((ilgen == null) || (ilgen.ILOffset == 0)) && (code == null || code.Length == 0))
 336                                         throw new InvalidOperationException (
 337                                                                              String.Format ("Method '{0}.{1}' does not have a method body.",
 338                                                                                             DeclaringType.FullName, Name));
 339                         }
 340                         if (ilgen != null)
 341                                 ilgen.label_fixup ();
 342                 }
 343
 344                 internal void GenerateDebugInfo (ISymbolWriter symbolWriter)
 345                 {
 346                         if (ilgen != null && ilgen.HasDebugInfo) {
 347                                 SymbolToken token = new SymbolToken (GetToken().Token);
 348                                 symbolWriter.OpenMethod (token);
 349                                 symbolWriter.SetSymAttribute (token, "__name", System.Text.Encoding.UTF8.GetBytes (Name));
 350                                 ilgen.GenerateDebugInfo (symbolWriter);
 351                                 symbolWriter.CloseMethod ();
 352                         }
 353                 }
 354
 355                 public void SetCustomAttribute (CustomAttributeBuilder customBuilder)
 356                 {
 357                         if (customBuilder == null)
 358                                 throw new ArgumentNullException ("customBuilder");
 359
 360                         switch (customBuilder.Ctor.ReflectedType.FullName) {
 361                                 case "System.Runtime.CompilerServices.MethodImplAttribute":
 362                                         byte[] data = customBuilder.Data;
 363                                         int impla; // the (stupid) ctor takes a short or an int ...
 364                                         impla = (int)data [2];
 365                                         impla |= ((int)data [3]) << 8;
 366                                         iattrs |= (MethodImplAttributes)impla;
 367                                         return;
 368
 369                                 case "System.Runtime.InteropServices.DllImportAttribute":
 370                                         CustomAttributeBuilder.CustomAttributeInfo attr = CustomAttributeBuilder.decode_cattr (customBuilder);
 371                                         bool preserveSig = true;
 372
 373                                         /*
 374                                          * It would be easier to construct a DllImportAttribute from
 375                                          * the custom attribute builder, but the DllImportAttribute
 376                                          * does not contain all the information required here, ie.
 377                                          * - some parameters, like BestFitMapping has three values
 378                                          *   ("on", "off", "missing"), but DllImportAttribute only
 379                                          *   contains two (on/off).
 380                                          * - PreserveSig is true by default, while it is false by
 381                                          *   default in DllImportAttribute.
 382                                          */
 383
 384                                         pi_dll = (string)attr.ctorArgs[0];
 385                                         if (pi_dll == null || pi_dll.Length == 0)
 386                                                 throw new ArgumentException ("DllName cannot be empty");
 387
 388                                         native_cc = System.Runtime.InteropServices.CallingConvention.Winapi;
 389
 390                                         for (int i = 0; i < attr.namedParamNames.Length; ++i) {
 391                                                 string name = attr.namedParamNames [i];
 392                                                 object value = attr.namedParamValues [i];
 393
 394                                                 if (name == "CallingConvention")
 395                                                         native_cc = (CallingConvention)value;
 396                                                 else if (name == "CharSet")
 397                                                         charset = (CharSet)value;
 398                                                 else if (name == "EntryPoint")
 399                                                         pi_entry = (string)value;
 400                                                 else if (name == "ExactSpelling")
 401                                                         ExactSpelling = (bool)value;
 402                                                 else if (name == "SetLastError")
 403                                                         SetLastError = (bool)value;
 404                                                 else if (name == "PreserveSig")
 405                                                         preserveSig = (bool)value;
 406                                         else if (name == "BestFitMapping")
 407                                                 BestFitMapping = (bool)value;
 408                                         else if (name == "ThrowOnUnmappableChar")
 409                                                 ThrowOnUnmappableChar = (bool)value;
 410                                         }
 411
 412                                         attrs |= MethodAttributes.PinvokeImpl;
 413                                         if (preserveSig)
 414                                                 iattrs |= MethodImplAttributes.PreserveSig;
 415                                         return;
 416
 417                                 case "System.Runtime.InteropServices.PreserveSigAttribute":
 418                                         iattrs |= MethodImplAttributes.PreserveSig;
 419                                         return;
 420                                 case "System.Runtime.CompilerServices.SpecialNameAttribute":
 421                                         attrs |= MethodAttributes.SpecialName;
 422                                         return;
 423                                 case "System.Security.SuppressUnmanagedCodeSecurityAttribute":
 424                                         attrs |= MethodAttributes.HasSecurity;
 425                                         break;
 426                         }
 427
 428                         if (cattrs != null) {
 429                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 430                                 cattrs.CopyTo (new_array, 0);
 431                                 new_array [cattrs.Length] = customBuilder;
 432                                 cattrs = new_array;
 433                         } else {
 434                                 cattrs = new CustomAttributeBuilder [1];
 435                                 cattrs [0] = customBuilder;
 436                         }
 437                 }
 438
 439                 [ComVisible (true)]
 440                 public void SetCustomAttribute (ConstructorInfo con, byte[] binaryAttribute)
 441                 {
 442                         if (con == null)
 443                                 throw new ArgumentNullException ("con");
 444                         if (binaryAttribute == null)
 445                                 throw new ArgumentNullException ("binaryAttribute");
 446                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 447                 }
 448
 449                 public void SetImplementationFlags (MethodImplAttributes attributes)
 450                 {
 451                         RejectIfCreated ();
 452                         iattrs = attributes;
 453                 }
 454
 455                 public void AddDeclarativeSecurity (SecurityAction action, PermissionSet pset)
 456                 {
 457 #if !NET_2_1
 458                         if (pset == null)
 459                                 throw new ArgumentNullException ("pset");
 460                         if ((action == SecurityAction.RequestMinimum) ||
 461                                 (action == SecurityAction.RequestOptional) ||
 462                                 (action == SecurityAction.RequestRefuse))
 463                                 throw new ArgumentOutOfRangeException ("Request* values are not permitted", "action");
 464
 465                         RejectIfCreated ();
 466
 467                         if (permissions != null) {
 468                                 /* Check duplicate actions */
 469                                 foreach (RefEmitPermissionSet set in permissions)
 470                                         if (set.action == action)
 471                                                 throw new InvalidOperationException ("Multiple permission sets specified with the same SecurityAction.");
 472
 473                                 RefEmitPermissionSet[] new_array = new RefEmitPermissionSet [permissions.Length + 1];
 474                                 permissions.CopyTo (new_array, 0);
 475                                 permissions = new_array;
 476                         }
 477                         else
 478                                 permissions = new RefEmitPermissionSet [1];
 479
 480                         permissions [permissions.Length - 1] = new RefEmitPermissionSet (action, pset.ToXml ().ToString ());
 481                         attrs |= MethodAttributes.HasSecurity;
 482 #endif
 483                 }
 484
 485                 [Obsolete ("An alternate API is available: Emit the MarshalAs custom attribute instead.")]
 486                 public void SetMarshal (UnmanagedMarshal unmanagedMarshal)
 487                 {
 488                         RejectIfCreated ();
 489                         throw new NotImplementedException ();
 490                 }
 491
 492                 [MonoTODO]
 493                 public void SetSymCustomAttribute (string name, byte[] data)
 494                 {
 495                         RejectIfCreated ();
 496                         throw new NotImplementedException ();
 497                 }
 498
 499                 public override string ToString()
 500                 {
 501                         return "MethodBuilder [" + type.Name + "::" + name + "]";
 502                 }
 503
 504                 [MonoTODO]
 505                 public override bool Equals (object obj)
 506                 {
 507                         return base.Equals (obj);
 508                 }
 509
 510                 public override int GetHashCode ()
 511                 {
 512                         return name.GetHashCode ();
 513                 }
 514
 515                 internal override int get_next_table_index (object obj, int table, bool inc)
 516                 {
 517                         return type.get_next_table_index (obj, table, inc);
 518                 }
 519
 520                 internal void set_override (MethodInfo mdecl)
 521                 {
 522                         override_method = mdecl;
 523                 }
 524
 525                 private void RejectIfCreated ()
 526                 {
 527                         if (type.is_created)
 528                                 throw new InvalidOperationException ("Type definition of the method is complete.");
 529                 }
 530
 531                 private Exception NotSupported ()
 532                 {
 533                         return new NotSupportedException ("The invoked member is not supported in a dynamic module.");
 534                 }
 535
 536                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 537                 public override extern MethodInfo MakeGenericMethod (params Type [] typeArguments);
 538
 539                 public override bool IsGenericMethodDefinition {
 540                         get {
 541                                 return generic_params != null;
 542                         }
 543                 }
 544
 545                 public override bool IsGenericMethod {
 546                         get {
 547                                 return generic_params != null;
 548                         }
 549                 }
 550
 551                 public override MethodInfo GetGenericMethodDefinition ()
 552                 {
 553                         if (!IsGenericMethodDefinition)
 554                                 throw new InvalidOperationException ();
 555
 556                         return this;
 557                 }
 558
 559                 public override Type[] GetGenericArguments ()
 560                 {
 561                         if (generic_params == null)
 562                                 return Type.EmptyTypes;
 563
 564                         Type[] result = new Type [generic_params.Length];
 565                         for (int i = 0; i < generic_params.Length; i++)
 566                                 result [i] = generic_params [i];
 567
 568                         return result;
 569                 }
 570
 571                 public GenericTypeParameterBuilder[] DefineGenericParameters (params string[] names)
 572                 {
 573                         if (names == null)
 574                                 throw new ArgumentNullException ("names");
 575                         if (names.Length == 0)
 576                                 throw new ArgumentException ("names");
 577
 578                         generic_params = new GenericTypeParameterBuilder [names.Length];
 579                         for (int i = 0; i < names.Length; i++) {
 580                                 string item = names [i];
 581                                 if (item == null)
 582                                         throw new ArgumentNullException ("names");
 583                                 generic_params [i] = new GenericTypeParameterBuilder (type, this, item, i);
 584                         }
 585
 586                         return generic_params;
 587                 }
 588
 589                 public void SetReturnType (Type returnType)
 590                 {
 591                         rtype = returnType;
 592                 }
 593
 594                 public void SetParameters (params Type[] parameterTypes)
 595                 {
 596                         if (parameterTypes != null) {
 597                                 for (int i = 0; i < parameterTypes.Length; ++i)
 598                                         if (parameterTypes [i] == null)
 599                                                 throw new ArgumentException ("Elements of the parameterTypes array cannot be null", "parameterTypes");
 600
 601                                 this.parameters = new Type [parameterTypes.Length];
 602                                 System.Array.Copy (parameterTypes, this.parameters, parameterTypes.Length);
 603                         }
 604                 }
 605
 606                 public void SetSignature (Type returnType, Type[] returnTypeRequiredCustomModifiers, Type[] returnTypeOptionalCustomModifiers, Type[] parameterTypes, Type[][] parameterTypeRequiredCustomModifiers, Type[][] parameterTypeOptionalCustomModifiers)
 607                 {
 608                         SetReturnType (returnType);
 609                         SetParameters (parameterTypes);
 610                         this.returnModReq = returnTypeRequiredCustomModifiers;
 611                         this.returnModOpt = returnTypeOptionalCustomModifiers;
 612                         this.paramModReq = parameterTypeRequiredCustomModifiers;
 613                         this.paramModOpt = parameterTypeOptionalCustomModifiers;
 614                 }
 615
 616                 public override Module Module {
 617                         get {
 618                                 return base.Module;
 619                         }
 620                 }
 621
 622                 void _MethodBuilder.GetIDsOfNames([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 623                 {
 624                         throw new NotImplementedException ();
 625                 }
 626
 627                 void _MethodBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 628                 {
 629                         throw new NotImplementedException ();
 630                 }
 631
 632                 void _MethodBuilder.GetTypeInfoCount (out uint pcTInfo)
 633                 {
 634                         throw new NotImplementedException ();
 635                 }
 636
 637                 void _MethodBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 638                 {
 639                         throw new NotImplementedException ();
 640                 }
 641         }
 642 }