mcs/mcs/rootcontext.cs

   1 //
   2 // rootcontext.cs: keeps track of our tree representation, and assemblies loaded.
   3 //
   4 // Author: Miguel de Icaza (miguel@ximian.com)
   5 //         Ravi Pratap     (ravi@ximian.com)
   6 //
   7 // Licensed under the terms of the GNU GPL
   8 //
   9 // (C) 2001 Ximian, Inc (http://www.ximian.com)
  10 // (C) 2004 Novell, Inc
  11
  12 using System;
  13 using System.Collections;
  14 using System.Reflection;
  15 using System.Reflection.Emit;
  16 using System.Diagnostics;
  17
  18 namespace Mono.CSharp {
  19
  20         public enum LanguageVersion
  21         {
  22                 Default = 0,
  23                 ISO_1   = 1
  24         }
  25
  26         public class RootContext {
  27
  28                 //
  29                 // Contains the parsed tree
  30                 //
  31                 static Tree tree;
  32
  33                 //
  34                 // This hashtable contains all of the #definitions across the source code
  35                 // it is used by the ConditionalAttribute handler.
  36                 //
  37                 public static Hashtable AllDefines = new Hashtable ();
  38
  39                 //
  40                 // Whether we are being linked against the standard libraries.
  41                 // This is only used to tell whether `System.Object' should
  42                 // have a parent or not.
  43                 //
  44                 public static bool StdLib = true;
  45
  46                 //
  47                 // This keeps track of the order in which classes were defined
  48                 // so that we can poulate them in that order.
  49                 //
  50                 // Order is important, because we need to be able to tell by
  51                 // examining the parent's list of methods which ones are virtual
  52                 // or abstract as well as the parent names (to implement new,
  53                 // override).
  54                 //
  55                 static ArrayList type_container_resolve_order;
  56                 static ArrayList attribute_types;
  57
  58                 //
  59                 // Holds a reference to the Private Implementation Details
  60                 // class.
  61                 //
  62                 static ArrayList helper_classes;
  63
  64                 static TypeBuilder impl_details_class;
  65
  66                 public static int WarningLevel = 2;
  67
  68                 public static Target Target = Target.Exe;
  69                 public static string TargetExt = ".exe";
  70
  71                 public static bool VerifyClsCompliance = true;
  72
  73                 public static LanguageVersion Version = LanguageVersion.Default;
  74
  75                 //
  76                 // We keep strongname related info here because
  77                 // it's also used as complier options from CSC 8.x
  78                 //
  79                 public static string StrongNameKeyFile;
  80                 public static string StrongNameKeyContainer;
  81                 public static bool StrongNameDelaySign = false;
  82
  83                 //
  84                 // If set, enable XML documentation generation
  85                 //
  86                 public static Documentation Documentation;
  87
  88                 //
  89                 // Constructor
  90                 //
  91                 static RootContext ()
  92                 {
  93                         tree = new Tree ();
  94                         type_container_resolve_order = new ArrayList ();
  95                 }
  96
  97                 public static bool NeedsEntryPoint {
  98                         get {
  99                                 return RootContext.Target == Target.Exe || RootContext.Target == Target.WinExe;
 100                         }
 101                 }
 102
 103                 static public Tree Tree {
 104                         get {
 105                                 return tree;
 106                         }
 107                 }
 108
 109                 static public string MainClass;
 110
 111                 public static void RegisterOrder (TypeContainer tc)
 112                 {
 113                         type_container_resolve_order.Add (tc);
 114                 }
 115
 116                 public static void RegisterAttribute (TypeContainer tc)
 117                 {
 118                         if (attribute_types == null)
 119                                 attribute_types = new ArrayList ();
 120
 121                         attribute_types.Add (tc);
 122                 }
 123
 124                 //
 125                 // The default compiler checked state
 126                 //
 127                 static public bool Checked = false;
 128
 129                 //
 130                 // Whether to allow Unsafe code
 131                 //
 132                 static public bool Unsafe = false;
 133
 134                 static string MakeFQN (string nsn, string name)
 135                 {
 136                         if (nsn == "")
 137                                 return name;
 138                         return String.Concat (nsn, ".", name);
 139                 }
 140
 141                 // <remarks>
 142                 //   This function is used to resolve the hierarchy tree.
 143                 //   It processes interfaces, structs and classes in that order.
 144                 //
 145                 //   It creates the TypeBuilder's as it processes the user defined
 146                 //   types.
 147                 // </remarks>
 148                 static public void ResolveTree ()
 149                 {
 150                         //
 151                         // Process the attribute types separately and before anything else
 152                         //
 153                         if (attribute_types != null)
 154                                 foreach (TypeContainer tc in attribute_types)
 155                                         tc.DefineType ();
 156
 157                         //
 158                         // Interfaces are processed next, as classes and
 159                         // structs might inherit from an object or implement
 160                         // a set of interfaces, we need to be able to tell
 161                         // them appart by just using the TypeManager.
 162                         //
 163                         TypeContainer root = Tree.Types;
 164
 165                         ArrayList ifaces = root.Interfaces;
 166                         if (ifaces != null){
 167                                 foreach (Interface i in ifaces)
 168                                         i.DefineType ();
 169                         }
 170
 171                         foreach (TypeContainer tc in root.Types)
 172                                 tc.DefineType ();
 173
 174                         if (root.Delegates != null)
 175                                 foreach (Delegate d in root.Delegates)
 176                                         d.DefineType ();
 177
 178                         if (root.Enums != null)
 179                                 foreach (Enum e in root.Enums)
 180                                         e.DefineType ();
 181                 }
 182
 183                 static void Error_TypeConflict (string name, Location loc)
 184                 {
 185                         Report.Error (
 186                                 520, loc, "`" + name + "' conflicts with a predefined type");
 187                 }
 188
 189                 static void Error_TypeConflict (string name)
 190                 {
 191                         Report.Error (
 192                                 520, "`" + name + "' conflicts with a predefined type");
 193                 }
 194
 195                 //
 196                 // Resolves a single class during the corlib bootstrap process
 197                 //
 198                 static TypeBuilder BootstrapCorlib_ResolveClass (TypeContainer root, string name)
 199                 {
 200                         object o = root.GetDefinition (name);
 201                         if (o == null){
 202                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 203                                 return null;
 204                         }
 205
 206                         if (!(o is Class)){
 207                                 if (o is DeclSpace){
 208                                         DeclSpace d = (DeclSpace) o;
 209
 210                                         Error_TypeConflict (name, d.Location);
 211                                 } else
 212                                         Error_TypeConflict (name);
 213
 214                                 return null;
 215                         }
 216
 217                         return ((DeclSpace) o).DefineType ();
 218                 }
 219
 220                 //
 221                 // Resolves a struct during the corlib bootstrap process
 222                 //
 223                 static void BootstrapCorlib_ResolveStruct (TypeContainer root, string name)
 224                 {
 225                         object o = root.GetDefinition (name);
 226                         if (o == null){
 227                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 228                                 return;
 229                         }
 230
 231                         if (!(o is Struct)){
 232                                 if (o is DeclSpace){
 233                                         DeclSpace d = (DeclSpace) o;
 234
 235                                         Error_TypeConflict (name, d.Location);
 236                                 } else
 237                                         Error_TypeConflict (name);
 238
 239                                 return;
 240                         }
 241
 242                         ((DeclSpace) o).DefineType ();
 243                 }
 244
 245                 //
 246                 // Resolves a struct during the corlib bootstrap process
 247                 //
 248                 static void BootstrapCorlib_ResolveInterface (TypeContainer root, string name)
 249                 {
 250                         object o = root.GetDefinition (name);
 251                         if (o == null){
 252                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 253                                 return;
 254                         }
 255
 256                         if (!(o is Interface)){
 257                                 if (o is DeclSpace){
 258                                         DeclSpace d = (DeclSpace) o;
 259
 260                                         Error_TypeConflict (name, d.Location);
 261                                 } else
 262                                         Error_TypeConflict (name);
 263
 264                                 return;
 265                         }
 266
 267                         ((DeclSpace) o).DefineType ();
 268                 }
 269
 270                 //
 271                 // Resolves a delegate during the corlib bootstrap process
 272                 //
 273                 static void BootstrapCorlib_ResolveDelegate (TypeContainer root, string name)
 274                 {
 275                         object o = root.GetDefinition (name);
 276                         if (o == null){
 277                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 278                                 Environment.Exit (1);
 279                         }
 280
 281                         if (!(o is Delegate)){
 282                                 Error_TypeConflict (name);
 283                                 return;
 284                         }
 285
 286                         ((DeclSpace) o).DefineType ();
 287                 }
 288
 289
 290                 /// <summary>
 291                 ///    Resolves the core types in the compiler when compiling with --nostdlib
 292                 /// </summary>
 293                 static public void ResolveCore ()
 294                 {
 295                         TypeContainer root = Tree.Types;
 296
 297                         TypeManager.object_type = BootstrapCorlib_ResolveClass (root, "System.Object");
 298                         TypeManager.value_type = BootstrapCorlib_ResolveClass (root, "System.ValueType");
 299                         TypeManager.attribute_type = BootstrapCorlib_ResolveClass (root, "System.Attribute");
 300
 301                         string [] interfaces_first_stage = {
 302                                 "System.IComparable", "System.ICloneable",
 303                                 "System.IConvertible",
 304
 305                                 "System.Collections.IEnumerable",
 306                                 "System.Collections.ICollection",
 307                                 "System.Collections.IEnumerator",
 308                                 "System.Collections.IList",
 309                                 "System.IAsyncResult",
 310                                 "System.IDisposable",
 311
 312                                 "System.Runtime.Serialization.ISerializable",
 313
 314                                 "System.Reflection.IReflect",
 315                                 "System.Reflection.ICustomAttributeProvider"
 316                         };
 317
 318                         foreach (string iname in interfaces_first_stage)
 319                                 BootstrapCorlib_ResolveInterface (root, iname);
 320
 321                         //
 322                         // These are the base value types
 323                         //
 324                         string [] structs_first_stage = {
 325                                 "System.Byte",    "System.SByte",
 326                                 "System.Int16",   "System.UInt16",
 327                                 "System.Int32",   "System.UInt32",
 328                                 "System.Int64",   "System.UInt64",
 329                         };
 330
 331                         foreach (string cname in structs_first_stage)
 332                                 BootstrapCorlib_ResolveStruct (root, cname);
 333
 334                         //
 335                         // Now, we can load the enumerations, after this point,
 336                         // we can use enums.
 337                         //
 338                         TypeManager.InitEnumUnderlyingTypes ();
 339
 340                         string [] structs_second_stage = {
 341                                 "System.Single",  "System.Double",
 342                                 "System.Char",    "System.Boolean",
 343                                 "System.Decimal", "System.Void",
 344                                 "System.RuntimeFieldHandle",
 345                                 "System.RuntimeArgumentHandle",
 346                                 "System.RuntimeTypeHandle",
 347                                 "System.IntPtr",
 348                                 "System.TypedReference",
 349                                 "System.ArgIterator"
 350                         };
 351
 352                         foreach (string cname in structs_second_stage)
 353                                 BootstrapCorlib_ResolveStruct (root, cname);
 354
 355                         //
 356                         // These are classes that depends on the core interfaces
 357                         //
 358                         string [] classes_second_stage = {
 359                                 "System.Reflection.MemberInfo",
 360                                 "System.Type",
 361                                 "System.Exception",
 362
 363                                 //
 364                                 // These are not really important in the order, but they
 365                                 // are used by the compiler later on (typemanager/CoreLookupType-d)
 366                                 //
 367                                 "System.Runtime.CompilerServices.RuntimeHelpers",
 368                                 "System.Reflection.DefaultMemberAttribute",
 369                                 "System.Threading.Monitor",
 370
 371                                 "System.AttributeUsageAttribute",
 372                                 "System.Runtime.InteropServices.DllImportAttribute",
 373                                 "System.Runtime.CompilerServices.MethodImplAttribute",
 374                                 "System.Runtime.InteropServices.MarshalAsAttribute",
 375                                 "System.Diagnostics.ConditionalAttribute",
 376                                 "System.ObsoleteAttribute",
 377                                 "System.ParamArrayAttribute",
 378                                 "System.CLSCompliantAttribute",
 379                                 "System.Security.UnverifiableCodeAttribute",
 380                                 "System.Security.Permissions.SecurityAttribute",
 381                                 "System.Runtime.CompilerServices.IndexerNameAttribute",
 382                                 "System.Runtime.CompilerServices.DecimalConstantAttribute",
 383                                 "System.Runtime.InteropServices.InAttribute",
 384                                 "System.Runtime.InteropServices.OutAttribute",
 385                                 "System.Runtime.InteropServices.StructLayoutAttribute",
 386                                 "System.Runtime.InteropServices.FieldOffsetAttribute",
 387                                 "System.InvalidOperationException",
 388                                 "System.NotSupportedException",
 389                                 "System.MarshalByRefObject",
 390                                 "System.Security.CodeAccessPermission"
 391                         };
 392
 393                         // We must store them here before calling BootstrapCorlib_ResolveDelegate.
 394                         TypeManager.string_type = BootstrapCorlib_ResolveClass (root, "System.String");
 395                         TypeManager.enum_type = BootstrapCorlib_ResolveClass (root, "System.Enum");
 396                         TypeManager.array_type = BootstrapCorlib_ResolveClass (root, "System.Array");
 397                         TypeManager.multicast_delegate_type = BootstrapCorlib_ResolveClass (root, "System.MulticastDelegate");
 398                         TypeManager.delegate_type = BootstrapCorlib_ResolveClass (root, "System.Delegate");
 399
 400                         foreach (string cname in classes_second_stage)
 401                                 BootstrapCorlib_ResolveClass (root, cname);
 402
 403                         BootstrapCorlib_ResolveDelegate (root, "System.AsyncCallback");
 404                 }
 405
 406                 // <summary>
 407                 //   Closes all open types
 408                 // </summary>
 409                 //
 410                 // <remarks>
 411                 //   We usually use TypeBuilder types.  When we are done
 412                 //   creating the type (which will happen after we have added
 413                 //   methods, fields, etc) we need to "Define" them before we
 414                 //   can save the Assembly
 415                 // </remarks>
 416                 static public void CloseTypes ()
 417                 {
 418                         TypeContainer root = Tree.Types;
 419
 420                         if (root.Enums != null)
 421                                 foreach (Enum en in root.Enums)
 422                                         en.CloseType ();
 423
 424                         if (attribute_types != null)
 425                                 foreach (TypeContainer tc in attribute_types)
 426                                         tc.CloseType ();
 427
 428                         //
 429                         // We do this in two passes, first we close the structs,
 430                         // then the classes, because it seems the code needs it this
 431                         // way.  If this is really what is going on, we should probably
 432                         // make sure that we define the structs in order as well.
 433                         //
 434                         foreach (TypeContainer tc in type_container_resolve_order){
 435                                 if (tc.Kind == Kind.Struct && tc.Parent == tree.Types){
 436                                         tc.CloseType ();
 437                                 }
 438                         }
 439
 440                         foreach (TypeContainer tc in type_container_resolve_order){
 441                                 if (!(tc.Kind == Kind.Struct && tc.Parent == tree.Types))
 442                                         tc.CloseType ();
 443                         }
 444
 445                         if (root.Delegates != null)
 446                                 foreach (Delegate d in root.Delegates)
 447                                         d.CloseType ();
 448
 449
 450                         //
 451                         // If we have a <PrivateImplementationDetails> class, close it
 452                         //
 453                         if (helper_classes != null){
 454                                 foreach (TypeBuilder type_builder in helper_classes)
 455                                         type_builder.CreateType ();
 456                         }
 457
 458                         attribute_types = null;
 459                         type_container_resolve_order = null;
 460                         helper_classes = null;
 461                         //tree = null;
 462                         TypeManager.CleanUp ();
 463                 }
 464
 465                 /// <summary>
 466                 ///   Used to register classes that need to be closed after all the
 467                 ///   user defined classes
 468                 /// </summary>
 469                 public static void RegisterHelperClass (TypeBuilder helper_class)
 470                 {
 471                         if (helper_classes == null)
 472                                 helper_classes = new ArrayList ();
 473                         helper_classes.Add (helper_class);
 474                 }
 475
 476                 //
 477                 // This idea is from Felix Arrese-Igor
 478                 //
 479                 // Returns : the implicit parent of a composite namespace string
 480                 //   eg. Implicit parent of A.B is A
 481                 //
 482                 static public string ImplicitParent (string ns)
 483                 {
 484                         int i = ns.LastIndexOf ('.');
 485                         if (i < 0)
 486                                 return null;
 487
 488                         return ns.Substring (0, i);
 489                 }
 490
 491                 static Type NamespaceLookup (DeclSpace ds, string name, Location loc)
 492                 {
 493                         IAlias result = ds.NamespaceEntry.LookupNamespaceOrType (ds, name, loc);
 494                         if (result == null)
 495                                 return null;
 496
 497                         if (!result.IsType)
 498                                 return null;
 499
 500                         TypeExpr texpr = result.ResolveAsType (ds.EmitContext);
 501                         if (texpr == null)
 502                                 return null;
 503
 504                         return texpr.Type;
 505                 }
 506
 507                 //
 508                 // Public function used to locate types, this can only
 509                 // be used after the ResolveTree function has been invoked.
 510                 //
 511                 // Returns: Type or null if they type can not be found.
 512                 //
 513                 // Come to think of it, this should be a DeclSpace
 514                 //
 515                 static public Type LookupType (DeclSpace ds, string name, bool silent, Location loc)
 516                 {
 517                         Type t;
 518
 519                         if (ds.Cache.Contains (name)) {
 520                                 t = (Type) ds.Cache [name];
 521                         } else {
 522                                 //
 523                                 // For the case the type we are looking for is nested within this one
 524                                 // or is in any base class
 525                                 //
 526                                 DeclSpace containing_ds = ds;
 527                                 while (containing_ds != null){
 528
 529                                         // if the member cache has been created, lets use it.
 530                                         // the member cache is MUCH faster.
 531                                         if (containing_ds.MemberCache != null) {
 532                                                 t = containing_ds.MemberCache.FindNestedType (name);
 533                                                 if (t == null) {
 534                                                         containing_ds = containing_ds.Parent;
 535                                                         continue;
 536                                                 }
 537
 538                                                 ds.Cache [name] = t;
 539                                                 return t;
 540                                         }
 541
 542                                         // no member cache. Do it the hard way -- reflection
 543                                         Type current_type = containing_ds.TypeBuilder;
 544
 545                                         while (current_type != null &&
 546                                                current_type != TypeManager.object_type) {
 547                                                 //
 548                                                 // nested class
 549                                                 //
 550                                                 t = TypeManager.LookupType (current_type.FullName + "." + name);
 551                                                 if (t != null){
 552                                                         ds.Cache [name] = t;
 553                                                         return t;
 554                                                 }
 555
 556                                                 current_type = current_type.BaseType;
 557                                         }
 558
 559                                         containing_ds = containing_ds.Parent;
 560                                 }
 561
 562                                 t = NamespaceLookup (ds, name, loc);
 563                                 if (!silent || t != null)
 564                                         ds.Cache [name] = t;
 565                         }
 566
 567                         if (t == null && !silent)
 568                                 Report.Error (246, loc, "Cannot find type `"+name+"'");
 569
 570                         return t;
 571                 }
 572
 573                 // <summary>
 574                 //   This is the silent version of LookupType, you can use this
 575                 //   to `probe' for a type
 576                 // </summary>
 577                 static public Type LookupType (TypeContainer tc, string name, Location loc)
 578                 {
 579                         return LookupType (tc, name, true, loc);
 580                 }
 581
 582                 static void Report1530 (Location loc)
 583                 {
 584                         Report.Error (1530, loc, "Keyword new not allowed for namespace elements");
 585                 }
 586
 587                 static public void PopulateCoreType (TypeContainer root, string name)
 588                 {
 589                         DeclSpace ds = (DeclSpace) root.GetDefinition (name);
 590
 591                         ds.DefineMembers (root);
 592                         ds.Define ();
 593                 }
 594
 595                 static public void BootCorlib_PopulateCoreTypes ()
 596                 {
 597                         TypeContainer root = tree.Types;
 598
 599                         PopulateCoreType (root, "System.Object");
 600                         PopulateCoreType (root, "System.ValueType");
 601                         PopulateCoreType (root, "System.Attribute");
 602                 }
 603
 604                 // <summary>
 605                 //   Populates the structs and classes with fields and methods
 606                 // </summary>
 607                 //
 608                 // This is invoked after all interfaces, structs and classes
 609                 // have been defined through `ResolveTree'
 610                 static public void PopulateTypes ()
 611                 {
 612                         TypeContainer root = Tree.Types;
 613
 614                         if (attribute_types != null)
 615                                 foreach (TypeContainer tc in attribute_types)
 616                                         tc.DefineMembers (root);
 617
 618                         if (type_container_resolve_order != null){
 619                                 if (RootContext.StdLib){
 620                                         foreach (TypeContainer tc in type_container_resolve_order)
 621                                                 tc.DefineMembers (root);
 622                                 } else {
 623                                         foreach (TypeContainer tc in type_container_resolve_order) {
 624                                                 // When compiling corlib, these types have already been
 625                                                 // populated from BootCorlib_PopulateCoreTypes ().
 626                                                 if (((tc.Name == "System.Object") ||
 627                                                      (tc.Name == "System.Attribute") ||
 628                                                      (tc.Name == "System.ValueType")))
 629                                                 continue;
 630
 631                                                 tc.DefineMembers (root);
 632                                         }
 633                                 }
 634                         }
 635
 636                         ArrayList delegates = root.Delegates;
 637                         if (delegates != null){
 638                                 foreach (Delegate d in delegates)
 639                                         if ((d.ModFlags & Modifiers.NEW) == 0)
 640                                                 d.DefineMembers (root);
 641                                         else
 642                                                 Report1530 (d.Location);
 643                         }
 644
 645                         ArrayList enums = root.Enums;
 646                         if (enums != null){
 647                                 foreach (Enum en in enums)
 648                                         if ((en.ModFlags & Modifiers.NEW) == 0)
 649                                                 en.DefineMembers (root);
 650                                         else
 651                                                 Report1530 (en.Location);
 652                         }
 653
 654                         //
 655                         // Check for cycles in the struct layout
 656                         //
 657                         if (type_container_resolve_order != null){
 658                                 Hashtable seen = new Hashtable ();
 659                                 foreach (TypeContainer tc in type_container_resolve_order)
 660                                         TypeManager.CheckStructCycles (tc, seen);
 661                         }
 662                 }
 663
 664                 //
 665                 // A generic hook delegate
 666                 //
 667                 public delegate void Hook ();
 668
 669                 //
 670                 // A hook invoked when the code has been generated.
 671                 //
 672                 public static event Hook EmitCodeHook;
 673
 674                 //
 675                 // DefineTypes is used to fill in the members of each type.
 676                 //
 677                 static public void DefineTypes ()
 678                 {
 679                         TypeContainer root = Tree.Types;
 680
 681                         if (attribute_types != null)
 682                                 foreach (TypeContainer tc in attribute_types)
 683                                         tc.Define ();
 684
 685                         if (type_container_resolve_order != null){
 686                                 foreach (TypeContainer tc in type_container_resolve_order) {
 687                                         // When compiling corlib, these types have already been
 688                                         // populated from BootCorlib_PopulateCoreTypes ().
 689                                         if (!RootContext.StdLib &&
 690                                             ((tc.Name == "System.Object") ||
 691                                              (tc.Name == "System.Attribute") ||
 692                                              (tc.Name == "System.ValueType")))
 693                                                 continue;
 694
 695                                         if ((tc.ModFlags & Modifiers.NEW) == 0)
 696                                                 tc.Define ();
 697                                 }
 698                         }
 699
 700                         ArrayList delegates = root.Delegates;
 701                         if (delegates != null){
 702                                 foreach (Delegate d in delegates)
 703                                         if ((d.ModFlags & Modifiers.NEW) == 0)
 704                                                 d.Define ();
 705                         }
 706
 707                         ArrayList enums = root.Enums;
 708                         if (enums != null){
 709                                 foreach (Enum en in enums)
 710                                         if ((en.ModFlags & Modifiers.NEW) == 0)
 711                                                 en.Define ();
 712                         }
 713                 }
 714
 715                 static public void EmitCode ()
 716                 {
 717                         if (attribute_types != null)
 718                                 foreach (TypeContainer tc in attribute_types)
 719                                         tc.EmitType ();
 720
 721                         CodeGen.Assembly.Emit (Tree.Types);
 722                         CodeGen.Module.Emit (Tree.Types);
 723
 724                         if (Tree.Types.Enums != null) {
 725                                 foreach (Enum e in Tree.Types.Enums)
 726                                         e.Emit ();
 727                         }
 728
 729                         if (type_container_resolve_order != null) {
 730                                 foreach (TypeContainer tc in type_container_resolve_order)
 731                                         tc.EmitType ();
 732                         }
 733
 734                         if (Tree.Types.Delegates != null) {
 735                                 foreach (Delegate d in Tree.Types.Delegates)
 736                                         d.Emit ();
 737                         }
 738                         //
 739                         // Run any hooks after all the types have been defined.
 740                         // This is used to create nested auxiliary classes for example
 741                         //
 742
 743                         if (EmitCodeHook != null)
 744                                 EmitCodeHook ();
 745                 }
 746
 747                 //
 748                 // Public Field, used to track which method is the public entry
 749                 // point.
 750                 //
 751                 static public MethodInfo EntryPoint;
 752
 753                 //
 754                 // Track the location of the entry point.
 755                 //
 756                 static public Location EntryPointLocation;
 757
 758                 //
 759                 // These are used to generate unique names on the structs and fields.
 760                 //
 761                 static int field_count;
 762
 763                 //
 764                 // Makes an initialized struct, returns the field builder that
 765                 // references the data.  Thanks go to Sergey Chaban for researching
 766                 // how to do this.  And coming up with a shorter mechanism than I
 767                 // was able to figure out.
 768                 //
 769                 // This works but makes an implicit public struct $ArrayType$SIZE and
 770                 // makes the fields point to it.  We could get more control if we did
 771                 // use instead:
 772                 //
 773                 // 1. DefineNestedType on the impl_details_class with our struct.
 774                 //
 775                 // 2. Define the field on the impl_details_class
 776                 //
 777                 static public FieldBuilder MakeStaticData (byte [] data)
 778                 {
 779                         FieldBuilder fb;
 780
 781                         if (impl_details_class == null){
 782                                 impl_details_class = CodeGen.Module.Builder.DefineType (
 783                                         "<PrivateImplementationDetails>",
 784                                         TypeAttributes.NotPublic,
 785                                         TypeManager.object_type);
 786
 787                                 RegisterHelperClass (impl_details_class);
 788                         }
 789
 790                         fb = impl_details_class.DefineInitializedData (
 791                                 "$$field-" + (field_count++), data,
 792                                 FieldAttributes.Static | FieldAttributes.Assembly);
 793
 794                         return fb;
 795                 }
 796         }
 797 }
 798
 799