mcs/ilasm/codegen/MethodDef.cs

   1 //
   2 // Mono.ILASM.MethodDef
   3 //
   4 // Author(s):
   5 //  Jackson Harper (Jackson@LatitudeGeo.com)
   6 //
   7 // (C) 2003 Jackson Harper, All rights reserved
   8 //
   9
  10
  11 using System;
  12 using System.Text;
  13 using System.Collections;
  14 using System.Security;
  15
  16 namespace Mono.ILASM {
  17
  18         public class MethodDef : ICustomAttrTarget, IDeclSecurityTarget {
  19
  20                 private PEAPI.MethAttr meth_attr;
  21                 private PEAPI.CallConv call_conv;
  22                 private PEAPI.ImplAttr impl_attr;
  23                 private string name;
  24                 private string signature;
  25                 private Hashtable vararg_sig_table;
  26                 private BaseTypeRef ret_type;
  27                 private ArrayList param_list;
  28                 private ArrayList inst_list;
  29                 private ArrayList customattr_list;
  30                 private DeclSecurity decl_sec;
  31                 private Hashtable label_table;
  32                 private Hashtable labelref_table;
  33                 private ArrayList label_list;
  34                 private PEAPI.MethodDef methoddef;
  35                 private bool entry_point;
  36                 private bool zero_init;
  37                 private bool is_resolved;
  38                 private bool is_defined;
  39                 private ArrayList local_list;
  40                 private Hashtable named_local_table;
  41                 private bool init_locals;
  42                 private int max_stack;
  43                 private bool pinvoke_info;
  44                 private ExternModule pinvoke_mod;
  45                 private string pinvoke_name;
  46                 private PEAPI.PInvokeAttr pinvoke_attr;
  47                 private SourceMethod source;
  48                 private PEAPI.NativeType ret_native_type;
  49                 private TypeDef type_def;
  50                 private GenericParameters gen_params;
  51
  52                 public MethodDef (CodeGen codegen, PEAPI.MethAttr meth_attr,
  53                                   PEAPI.CallConv call_conv, PEAPI.ImplAttr impl_attr,
  54                                   string name, BaseTypeRef ret_type, ArrayList param_list,
  55                                   Location start, GenericParameters gen_params, TypeDef type_def)
  56                 {
  57                         this.meth_attr = meth_attr;
  58                         this.call_conv = call_conv;
  59                         this.impl_attr = impl_attr;
  60                         this.name = name;
  61                         this.ret_type = ret_type;
  62                         this.param_list = param_list;
  63                         this.type_def = type_def;
  64                         this.gen_params = gen_params;
  65
  66                         inst_list = new ArrayList ();
  67                         label_table = new Hashtable ();
  68                         labelref_table = new Hashtable ();
  69                         label_list = new ArrayList ();
  70                         local_list = new ArrayList ();
  71                         named_local_table = new Hashtable ();
  72
  73                         entry_point = false;
  74                         zero_init = false;
  75                         init_locals = false;
  76                         max_stack = -1;
  77                         pinvoke_info = false;
  78
  79                         is_defined = false;
  80                         is_resolved = false;
  81                         ResolveGenParams ();
  82                         CreateSignature ();
  83
  84                         codegen.BeginMethodDef (this);
  85
  86                         if (codegen.SymbolWriter != null)
  87                                 source = codegen.SymbolWriter.BeginMethod (this, start);
  88                 }
  89
  90                 public string Name {
  91                         get { return name; }
  92                 }
  93
  94                 public string Signature {
  95                         get { return signature; }
  96                 }
  97
  98                 public BaseTypeRef RetType {
  99                         get { return ret_type; }
 100                 }
 101
 102                 public PEAPI.CallConv CallConv {
 103                         get { return call_conv; }
 104                 }
 105
 106                 public PEAPI.MethodDef PeapiMethodDef {
 107                         get { return methoddef; }
 108                 }
 109
 110                 public PEAPI.MethAttr Attributes {
 111                         get { return meth_attr; }
 112                         set { meth_attr = value; }
 113                 }
 114
 115                 public bool IsVararg {
 116                         get { return (call_conv & PEAPI.CallConv.Vararg) != 0; }
 117                 }
 118
 119                 public bool IsStatic {
 120                         get { return (meth_attr & PEAPI.MethAttr.Static) != 0; }
 121                 }
 122
 123                 public bool IsVirtual {
 124                         get { return (meth_attr & PEAPI.MethAttr.Virtual) != 0; }
 125                 }
 126
 127                 public bool IsAbstract {
 128                         get { return (meth_attr & PEAPI.MethAttr.Abstract) != 0; }
 129                 }
 130
 131                 public BaseTypeRef[] ParamTypeList () {
 132
 133                         if (param_list == null)
 134                                 return new BaseTypeRef[0];
 135                         int count = 0;
 136                         BaseTypeRef[] type_list = new BaseTypeRef[param_list.Count];
 137                         foreach (ParamDef param in param_list) {
 138                                 type_list[count++] = param.Type;
 139                         }
 140                         return type_list;
 141                 }
 142
 143                 public void AddPInvokeInfo (PEAPI.PInvokeAttr pinvoke_attr, ExternModule pinvoke_mod,
 144                                 string pinvoke_name)
 145                 {
 146                         this.pinvoke_attr = pinvoke_attr;
 147                         this.pinvoke_mod = pinvoke_mod;
 148                         this.pinvoke_name = pinvoke_name;
 149                         pinvoke_info = true;
 150                 }
 151
 152                 public int GenParamCount {
 153                         get { return (gen_params != null ? gen_params.Count : 0); }
 154                 }
 155
 156                 public GenericParameter GetGenericParam (string id)
 157                 {
 158                         if (gen_params == null)
 159                                 return null;
 160
 161                         return gen_params.GetGenericParam (id);
 162                 }
 163
 164                 public GenericParameter GetGenericParam (int index)
 165                 {
 166                         if (gen_params == null || index < 0 || index >= gen_params.Count)
 167                                 return null;
 168
 169                         return gen_params [index];
 170                 }
 171
 172                 public int GetGenericParamNum (string id)
 173                 {
 174                         if (gen_params == null)
 175                                 return -1;
 176
 177                         return gen_params.GetGenericParamNum (id);
 178                 }
 179
 180                 public void AddParamDefaultValue (int index, PEAPI.Constant defval)
 181                 {
 182                         if (param_list [index] != null) {
 183                                 ((ParamDef)param_list [index]).AddDefaultValue (defval);
 184                         }
 185                 }
 186
 187                 public void AddCustomAttribute (CustomAttr customattr)
 188                 {
 189                         if (customattr_list == null)
 190                                 customattr_list = new ArrayList ();
 191
 192                         customattr_list.Add (customattr);
 193                 }
 194
 195                 public void AddPermissionSet (PEAPI.SecurityAction sec_action, PermissionSet ps)
 196                 {
 197                         if (decl_sec == null)
 198                                 decl_sec = new DeclSecurity ();
 199
 200                         decl_sec.AddPermissionSet (sec_action, ps);
 201                 }
 202
 203                 public void AddPermission (PEAPI.SecurityAction sec_action, IPermission iper)
 204                 {
 205                         if (decl_sec == null)
 206                                 decl_sec = new DeclSecurity ();
 207
 208                         decl_sec.AddPermission (sec_action, iper);
 209                 }
 210
 211                 public void AddRetTypeMarshalInfo (PEAPI.NativeType native_type)
 212                 {
 213                         this.ret_native_type = native_type;
 214                 }
 215
 216                 public void AddLocals (ArrayList local_list)
 217                 {
 218                         int slot_pos = this.local_list.Count;
 219
 220                         foreach (Local local in local_list) {
 221                                 if (local.Slot == -1) {
 222                                         local.Slot = slot_pos;
 223                                 }
 224                                 slot_pos++;
 225                                 if (local.Name == null)
 226                                         continue;
 227                                 if(!named_local_table.Contains(local.Name))
 228                                   named_local_table.Add (local.Name, local);
 229                         }
 230
 231                         this.local_list.AddRange (local_list);
 232                 }
 233
 234                 public Local GetNamedLocal (string name)
 235                 {
 236                         return (Local) named_local_table[name];
 237                 }
 238
 239                 public int GetNamedLocalSlot (string name)
 240                 {
 241                         Local local = (Local) named_local_table[name];
 242
 243                         return local.Slot;
 244                 }
 245
 246                 public int GetNamedParamPos (string name)
 247                 {
 248                         int pos = -1;
 249                         if (!IsStatic)
 250                                 pos ++;
 251                         foreach (ParamDef param in param_list) {
 252                                 pos ++;
 253                                 if (param.Name.CompareTo (name) == 0)
 254                                         return pos;
 255                         }
 256
 257                         return pos;
 258                 }
 259
 260                 public ParamDef GetParam (int index)
 261                 {
 262                         if (param_list [index] != null)
 263                                 return (ParamDef)param_list [index];
 264                         else
 265                                 return null;
 266                 }
 267
 268                 public void InitLocals ()
 269                 {
 270                         init_locals = true;
 271                 }
 272
 273                 public void EntryPoint ()
 274                 {
 275                         if (!IsStatic)
 276                                 throw new Exception ("Non-static method as entrypoint.");
 277                         entry_point = true;
 278                 }
 279
 280                 public void ZeroInit ()
 281                 {
 282                         zero_init = true;
 283                 }
 284
 285                 public void SetMaxStack (int max_stack)
 286                 {
 287                         this.max_stack = max_stack;
 288                 }
 289
 290                 public void ResolveGenParam (PEAPI.GenParam gpar)
 291                 {
 292                         if (gpar.Index != -1)
 293                                 return;
 294
 295                         if (gpar.Type == PEAPI.GenParamType.MVar)
 296                                 gpar.Index = GetGenericParamNum (gpar.Name);
 297                         else
 298                                 gpar.Index = type_def.GetGenericParamNum (gpar.Name);
 299
 300                         if (gpar.Index < 0)
 301                                 /* TODO: Report error */
 302                                 throw new Exception (String.Format ("Invalid {0}type parameter '{1}'",
 303                                                         (gpar.Type == PEAPI.GenParamType.MVar ? "method " : ""),
 304                                                          gpar.Name));
 305                 }
 306
 307                 public void ResolveGenParams ()
 308                 {
 309                         GenericParameters type_params = (type_def != null) ? type_def.TypeParameters : null;
 310
 311                         if (gen_params == null && type_params == null)
 312                                 return;
 313
 314                         if (gen_params != null)
 315                                 gen_params.ResolveConstraints (type_params, gen_params);
 316
 317                         BaseGenericTypeRef gtr = ret_type as BaseGenericTypeRef;
 318                         if (gtr != null)
 319                                 gtr.Resolve (type_params, gen_params);
 320
 321                         if (param_list == null)
 322                                 return;
 323
 324                         foreach (ParamDef param in param_list) {
 325                                 gtr = param.Type as BaseGenericTypeRef;
 326                                 if (gtr != null)
 327                                         gtr.Resolve (type_params, gen_params);
 328                         }
 329                 }
 330
 331                 public PEAPI.MethodDef Resolve (CodeGen code_gen)
 332                 {
 333                         return Resolve (code_gen, null);
 334                 }
 335
 336                 public PEAPI.MethodDef Resolve (CodeGen code_gen, PEAPI.ClassDef classdef)
 337                 {
 338                         if (is_resolved)
 339                                 return methoddef;
 340
 341                         PEAPI.Param [] param_array = GenerateParams (code_gen);
 342                         FixAttributes ();
 343                         ret_type.Resolve (code_gen);
 344
 345                         if (classdef == null)
 346                                 methoddef = code_gen.PEFile.AddMethod (meth_attr, impl_attr,
 347                                                 name, ret_type.PeapiType, param_array);
 348                         else
 349                                 methoddef = classdef.AddMethod (meth_attr, impl_attr,
 350                                                 name, ret_type.PeapiType, param_array);
 351
 352                         methoddef.AddCallConv (call_conv);
 353
 354                         if (ret_native_type != null)
 355                                 methoddef.AddRetTypeMarshallInfo (ret_native_type);
 356
 357                         is_resolved = true;
 358
 359                         return methoddef;
 360                 }
 361
 362                 private PEAPI.Param [] GenerateParams (CodeGen code_gen)
 363                 {
 364                         PEAPI.Param[] param_array;
 365
 366                         if (param_list != null && param_list.Count > 0) {
 367                                  int param_count = param_list.Count;
 368
 369                                  // Remove the last param if its the sentinel, not sure what
 370                                 // should happen with more then one sentinel
 371                                 ParamDef last = (ParamDef) param_list [param_count-1];
 372                                 if (last.IsSentinel ())
 373                                         param_count--;
 374
 375                                 param_array = new PEAPI.Param [param_count];
 376                                 for (int i = 0; i < param_count; i++) {
 377                                         ParamDef paramdef = (ParamDef) param_list [i];
 378                                         paramdef.Define (code_gen);
 379                                         param_array [i] = paramdef.PeapiParam;
 380                                 }
 381
 382                         } else {
 383                                 param_array = new PEAPI.Param [0];
 384                         }
 385
 386                         return param_array;
 387                 }
 388
 389                 public PEAPI.MethodRef GetVarargSig (PEAPI.Type[] opt)
 390                 {
 391                         if (!is_resolved)
 392                                 throw new Exception ("Methods must be resolved before a vararg sig can be created.");
 393
 394                         PEAPI.MethodRef methref = null;
 395                         StringBuilder sigbuilder = new StringBuilder ();
 396                         string sig;
 397                         foreach (PEAPI.Type t in opt)
 398                                 sigbuilder.Append (opt + ", ");
 399                         sig = sigbuilder.ToString ();
 400
 401                         if (vararg_sig_table == null) {
 402                                 vararg_sig_table = new Hashtable ();
 403                         } else {
 404                                 methref = vararg_sig_table [sig] as PEAPI.MethodRef;
 405                         }
 406
 407                         if (methref == null) {
 408                                 methref = methoddef.MakeVarArgSignature (opt);
 409                                 vararg_sig_table [sig] = methref;
 410                         }
 411
 412                         return methref;
 413                 }
 414
 415                 /// <summary>
 416                 ///  Define a member method
 417                 /// </summary>
 418                 public void Define (CodeGen code_gen)
 419                 {
 420                         if (is_defined)
 421                                 return;
 422
 423                         if (type_def == null)
 424                                 /* Global method */
 425                                 Resolve (code_gen, null);
 426                         else
 427                                 Resolve (code_gen, (PEAPI.ClassDef) type_def.ClassDef);
 428
 429                         WriteCode (code_gen, methoddef);
 430
 431                         //code_gen.Report.Message (String.Format ("Assembled method {0}::{1}", typedef.FullName, name));
 432                         is_defined = true;
 433                 }
 434
 435                 public void AddInstr (IInstr instr)
 436                 {
 437                         inst_list.Add (instr);
 438                 }
 439
 440                 protected void WriteCode (CodeGen code_gen, PEAPI.MethodDef methoddef)
 441                 {
 442                         /// Add the custrom attributes to this method
 443                         if (customattr_list != null)
 444                                 foreach (CustomAttr customattr in customattr_list) {
 445                                         customattr.AddTo (code_gen, methoddef);
 446                                         if (customattr.IsSuppressUnmanaged (code_gen))
 447                                                 methoddef.AddMethAttribute (PEAPI.MethAttr.HasSecurity);
 448                                 }
 449
 450                         /// Add declarative security to this method
 451                         if (decl_sec != null) {
 452                                 decl_sec.AddTo (code_gen, methoddef);
 453                                 methoddef.AddMethAttribute (PEAPI.MethAttr.HasSecurity);
 454                         }
 455
 456                         // Generic type parameters
 457                         if (gen_params != null)
 458                                 gen_params.Resolve (code_gen, methoddef);
 459
 460                         if (IsAbstract)
 461                                 return;
 462
 463                         if (entry_point)
 464                                 methoddef.DeclareEntryPoint ();
 465
 466                         if (local_list.Count > 0) {
 467                                 int ec = code_gen.Report.ErrorCount;
 468                                 PEAPI.Local[] local_array = new PEAPI.Local[local_list.Count];
 469
 470                                 foreach (Local local in local_list)
 471                                         local_array[local.Slot]  = local.GetPeapiLocal (code_gen);
 472
 473                                 if (code_gen.Report.ErrorCount > ec)
 474                                         return;
 475
 476                                 if (zero_init)
 477                                         init_locals = true;
 478
 479                                 methoddef.AddLocals (local_array, init_locals);
 480                         }
 481
 482                         /// Nothing seems to work if maxstack is not set,
 483                         /// i need to find out if this NEEDs to be set
 484                         /// and what its default value should be
 485                         if (max_stack < 0)
 486                                 max_stack = 8;
 487                         methoddef.SetMaxStack (max_stack);
 488
 489                         if (pinvoke_info) {
 490                                 methoddef.AddPInvokeInfo (pinvoke_mod.ModuleRef,
 491                                                 (pinvoke_name != null ? pinvoke_name : name), pinvoke_attr);
 492                         }
 493
 494                         if (inst_list.Count < 1)
 495                                 return;
 496
 497                         PEAPI.CILInstructions cil = methoddef.CreateCodeBuffer ();
 498                         /// Create all the labels
 499                         /// TODO: Most labels don't actually need to be created so we could
 500                         /// probably only create the ones that need to be
 501                         LabelInfo[] label_info = new LabelInfo[label_table.Count + label_list.Count];
 502                         label_table.Values.CopyTo (label_info, 0);
 503                         label_list.CopyTo (label_info, label_table.Count);
 504                         int previous_pos = -1;
 505                         LabelInfo previous_label = null;
 506                         Array.Sort (label_info);
 507
 508                         foreach (LabelInfo label in label_info) {
 509                                 if (label.UseOffset) {
 510                                         label.Define (new PEAPI.CILLabel (label.Offset));
 511                                         continue;
 512                                 }
 513                                 if (label.Pos == previous_pos)
 514                                         label.Label = previous_label.Label;
 515                                 else
 516                                         label.Define (cil.NewLabel ());
 517
 518                                 previous_label = label;
 519                                 previous_pos = label.Pos;
 520                         }
 521
 522                         // Set all the label refs
 523                         foreach (LabelInfo label in labelref_table.Values) {
 524                                 LabelInfo def = (LabelInfo) label_table[label.Name];
 525                                 if (def == null) {
 526                                         code_gen.Report.Error ("Undefined Label:  " + label);
 527                                         return;
 528                                 }
 529                                 label.Label = def.Label;
 530                         }
 531
 532                         int label_pos = 0;
 533                         int next_label_pos = (label_info.Length > 0 ? label_info[0].Pos : -1);
 534
 535                         for (int i=0; i<inst_list.Count; i++) {
 536                                 IInstr instr = (IInstr) inst_list[i];
 537                                 if (next_label_pos == i) {
 538                                         cil.CodeLabel (label_info[label_pos].Label);
 539                                         if (label_pos < label_info.Length) {
 540                                                 while (next_label_pos == i && ++label_pos < label_info.Length) {
 541                                                         if (label_info[label_pos].UseOffset)
 542                                                                 cil.CodeLabel (label_info[label_pos].Label);
 543                                                        next_label_pos = label_info[label_pos].Pos;
 544                                                 }
 545                                         }
 546                                         if (label_pos >= label_info.Length)
 547                                                 next_label_pos = -1;
 548                                 }
 549                                 if (source != null)
 550                                         source.MarkLocation (instr.Location.line, cil.Offset);
 551                                 instr.Emit (code_gen, this, cil);
 552                         }
 553
 554                         if (source != null)
 555                                 source.MarkLocation (source.EndLine, cil.Offset);
 556                 }
 557
 558                 public LabelInfo AddLabel (string name)
 559                 {
 560                         LabelInfo label_info = (LabelInfo) label_table[name];
 561                         if (label_info != null)
 562                                 return label_info;
 563                         label_info = new LabelInfo (name, inst_list.Count);
 564                         label_table.Add (name, label_info);
 565                         return label_info;
 566                 }
 567
 568                 public LabelInfo AddLabelRef (string name)
 569                 {
 570                         LabelInfo label_info = (LabelInfo) label_table[name];
 571                         if (label_info != null)
 572                                 return label_info;
 573                         label_info = (LabelInfo) labelref_table[name];
 574                         if (label_info != null)
 575                                 return label_info;
 576                         label_info = new LabelInfo (name, -1);
 577                         labelref_table.Add (name, label_info);
 578                         return label_info;
 579                 }
 580
 581                 public LabelInfo AddLabel (int offset)
 582                 {
 583                         // We go pos + 1 so this line is not counted
 584                         LabelInfo label_info = new LabelInfo (null, inst_list.Count+1, (uint) offset);
 585                         label_list.Add (label_info);
 586                         return label_info;
 587                 }
 588
 589                 public LabelInfo AddLabel ()
 590                 {
 591                         LabelInfo label_info = new LabelInfo (null, inst_list.Count);
 592                         label_list.Add (label_info);
 593                         return label_info;
 594                 }
 595
 596                 public PEAPI.CILLabel GetLabelDef (string name)
 597                 {
 598                         LabelInfo label_info = (LabelInfo) label_table[name];
 599
 600                         return label_info.Label;
 601                 }
 602
 603                 public PEAPI.CILLabel GetLabelDef (int pos)
 604                 {
 605                         foreach (LabelInfo li in label_list) {
 606                                 if (li.Pos == pos)
 607                                         return li.Label;
 608                         }
 609                         return null;
 610                 }
 611
 612                 private void CreateSignature ()
 613                 {
 614                         if (IsVararg)
 615                                 signature = CreateVarargSignature (RetType, name, param_list);
 616                         else
 617                                 signature = CreateSignature (RetType, name, param_list, GenParamCount);
 618                 }
 619
 620                 public static string CreateSignature (BaseTypeRef RetType, string name, IList param_list, int gen_param_count)
 621                 {
 622                         StringBuilder builder = new StringBuilder ();
 623
 624                         builder.Append (RetType.FullName);
 625                         builder.Append (" ");
 626                         builder.Append (name);
 627                         if (gen_param_count > 0)
 628                                 builder.AppendFormat ("`{0}", gen_param_count);
 629                         builder.Append ('(');
 630
 631                         if (param_list != null) {
 632                                 bool first = true;
 633                                 foreach (ParamDef paramdef in param_list) {
 634                                         if (!first)
 635                                                 builder.Append (',');
 636                                         builder.Append (paramdef.TypeName);
 637                                         first = false;
 638                                 }
 639                         }
 640                         builder.Append (')');
 641
 642                         return builder.ToString ();
 643                 }
 644
 645                 public static string CreateVarargSignature (BaseTypeRef RetType, string name, IList param_list)
 646                 {
 647                         StringBuilder builder = new StringBuilder ();
 648                         ParamDef last = null;
 649
 650                         builder.Append (RetType.FullName);
 651                         builder.Append (" ");
 652                         builder.Append (name);
 653                         builder.Append ('(');
 654
 655                         bool first = true;
 656                         if (param_list != null) {
 657                                 foreach (ParamDef paramdef in param_list) {
 658                                         if (!first)
 659                                                 builder.Append (',');
 660                                         builder.Append (paramdef.TypeName);
 661                                         first = false;
 662                                 }
 663                                 last = (ParamDef) param_list[param_list.Count - 1];
 664                         }
 665
 666
 667                         if (last == null || !last.IsSentinel ()) {
 668                                 if (!first)
 669                                         builder.Append (',');
 670                                 builder.Append ("...");
 671                         }
 672
 673                         builder.Append (')');
 674
 675                         return builder.ToString ();
 676                 }
 677
 678                 public static string CreateVarargSignature (BaseTypeRef RetType, string name, BaseTypeRef [] param_list)
 679                 {
 680                         StringBuilder builder = new StringBuilder ();
 681                         BaseTypeRef last = null;
 682
 683                         builder.Append (RetType.FullName);
 684                         builder.Append (" ");
 685                         builder.Append (name);
 686                         builder.Append ('(');
 687
 688                         bool first = true;
 689                         if (param_list != null && param_list.Length > 0) {
 690                                 foreach (BaseTypeRef param in param_list) {
 691                                         if (!first)
 692                                                 builder.Append (',');
 693                                         builder.Append (param.FullName);
 694                                         first = false;
 695                                         last = param;
 696                                         if (param is SentinelTypeRef)
 697                                                 break;
 698                                 }
 699
 700                         }
 701
 702                         if (last == null || !(last is SentinelTypeRef)) {
 703                                 if (!first)
 704                                         builder.Append (',');
 705                                 builder.Append ("...");
 706                         }
 707
 708                         builder.Append (')');
 709
 710                         return builder.ToString ();
 711                 }
 712
 713                 public static string CreateSignature (BaseTypeRef RetType, string name, BaseTypeRef[] param_list, int gen_param_count)
 714                 {
 715                         StringBuilder builder = new StringBuilder ();
 716
 717                         builder.Append (RetType.FullName);
 718                         builder.Append (" ");
 719                         builder.Append (name);
 720                         if (gen_param_count > 0)
 721                                 builder.AppendFormat ("`{0}", gen_param_count);
 722                         builder.Append ('(');
 723
 724                         if (param_list != null) {
 725                                 bool first = true;
 726                                 foreach (BaseTypeRef param in param_list) {
 727                                         if (!first)
 728                                                 builder.Append (',');
 729                                         builder.Append (param.FullName);
 730                                         first = false;
 731                                         if (param is SentinelTypeRef)
 732                                                 break;
 733                                 }
 734                         }
 735                         builder.Append (')');
 736
 737                         return builder.ToString ();
 738                 }
 739
 740                 private void FixAttributes ()
 741                 {
 742                         if (name == ".ctor" || name == ".cctor")
 743                                 meth_attr |= PEAPI.MethAttr.SpecialName | PEAPI.MethAttr.RTSpecialName;
 744                         // If methods aren't flagged as static they are instance
 745                         if ((PEAPI.MethAttr.Static & meth_attr) == 0)
 746                                 call_conv |= PEAPI.CallConv.Instance;
 747                 }
 748
 749         }
 750
 751 }
 752