mcs/gmcs/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
  11 using System;
  12 using System.Collections;
  13 using System.Reflection;
  14 using System.Reflection.Emit;
  15 using System.Diagnostics;
  16
  17 namespace Mono.CSharp {
  18
  19         public enum LanguageVersion
  20         {
  21                 Default = 0,
  22                 ISO_1   = 1
  23         }
  24
  25         public class RootContext {
  26
  27                 //
  28                 // Contains the parsed tree
  29                 //
  30                 static Tree tree;
  31
  32                 //
  33                 // This hashtable contains all of the #definitions across the source code
  34                 // it is used by the ConditionalAttribute handler.
  35                 //
  36                 public static Hashtable AllDefines = new Hashtable ();
  37
  38                 //
  39                 // Whether we are being linked against the standard libraries.
  40                 // This is only used to tell whether `System.Object' should
  41                 // have a parent or not.
  42                 //
  43                 public static bool StdLib = true;
  44
  45                 //
  46                 // This keeps track of the order in which classes were defined
  47                 // so that we can poulate them in that order.
  48                 //
  49                 // Order is important, because we need to be able to tell by
  50                 // examining the parent's list of methods which ones are virtual
  51                 // or abstract as well as the parent names (to implement new,
  52                 // override).
  53                 //
  54                 static ArrayList type_container_resolve_order;
  55                 static ArrayList attribute_types;
  56
  57                 //
  58                 // Holds a reference to the Private Implementation Details
  59                 // class.
  60                 //
  61                 static ArrayList helper_classes;
  62
  63                 static TypeBuilder impl_details_class;
  64
  65                 public static int WarningLevel = 2;
  66
  67                 public static Target Target = Target.Exe;
  68                 public static string TargetExt = ".exe";
  69
  70                 public static bool VerifyClsCompliance = true;
  71
  72                 public static LanguageVersion Version = LanguageVersion.Default;
  73
  74                 //
  75                 // We keep strongname related info here because
  76                 // it's also used as complier options from CSC 8.x
  77                 //
  78                 public static string StrongNameKeyFile;
  79                 public static string StrongNameKeyContainer;
  80                 public static bool StrongNameDelaySign = false;
  81
  82                 //
  83                 // Constructor
  84                 //
  85                 static RootContext ()
  86                 {
  87                         tree = new Tree ();
  88                         type_container_resolve_order = new ArrayList ();
  89                 }
  90
  91                 public static bool NeedsEntryPoint {
  92                         get {
  93                                 return RootContext.Target == Target.Exe || RootContext.Target == Target.WinExe;
  94                         }
  95                 }
  96
  97                 static public Tree Tree {
  98                         get {
  99                                 return tree;
 100                         }
 101                 }
 102
 103                 static public string MainClass;
 104
 105                 public static void RegisterOrder (TypeContainer tc)
 106                 {
 107                         type_container_resolve_order.Add (tc);
 108                 }
 109
 110                 public static void RegisterAttribute (TypeContainer tc)
 111                 {
 112                         if (attribute_types == null)
 113                                 attribute_types = new ArrayList ();
 114
 115                         attribute_types.Add (tc);
 116                 }
 117
 118                 //
 119                 // The default compiler checked state
 120                 //
 121                 static public bool Checked = false;
 122
 123                 //
 124                 // Whether to allow Unsafe code
 125                 //
 126                 static public bool Unsafe = false;
 127
 128                 static string MakeFQN (string nsn, string name)
 129                 {
 130                         if (nsn == "")
 131                                 return name;
 132                         return String.Concat (nsn, ".", name);
 133                 }
 134
 135                 // <remarks>
 136                 //   This function is used to resolve the hierarchy tree.
 137                 //   It processes interfaces, structs and classes in that order.
 138                 //
 139                 //   It creates the TypeBuilder's as it processes the user defined
 140                 //   types.
 141                 // </remarks>
 142                 static public void ResolveTree ()
 143                 {
 144                         //
 145                         // Process the attribute types separately and before anything else
 146                         //
 147                         if (attribute_types != null)
 148                                 foreach (TypeContainer tc in attribute_types)
 149                                         tc.DefineType ();
 150
 151                         //
 152                         // Interfaces are processed next, as classes and
 153                         // structs might inherit from an object or implement
 154                         // a set of interfaces, we need to be able to tell
 155                         // them appart by just using the TypeManager.
 156                         //
 157                         TypeContainer root = Tree.Types;
 158
 159                         ArrayList ifaces = root.Interfaces;
 160                         if (ifaces != null){
 161                                 foreach (Interface i in ifaces)
 162                                         i.DefineType ();
 163                         }
 164
 165                         foreach (TypeContainer tc in root.Types)
 166                                 tc.DefineType ();
 167
 168                         if (root.Delegates != null)
 169                                 foreach (Delegate d in root.Delegates)
 170                                         d.DefineType ();
 171
 172                         if (root.Enums != null)
 173                                 foreach (Enum e in root.Enums)
 174                                         e.DefineType ();
 175                 }
 176
 177                 static void Error_TypeConflict (string name, Location loc)
 178                 {
 179                         Report.Error (
 180                                 520, loc, "`" + name + "' conflicts with a predefined type");
 181                 }
 182
 183                 static void Error_TypeConflict (string name)
 184                 {
 185                         Report.Error (
 186                                 520, "`" + name + "' conflicts with a predefined type");
 187                 }
 188
 189                 //
 190                 // Resolves a single class during the corlib bootstrap process
 191                 //
 192                 static TypeBuilder BootstrapCorlib_ResolveClass (TypeContainer root, string name)
 193                 {
 194                         object o = root.GetDefinition (name);
 195                         if (o == null){
 196                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 197                                 return null;
 198                         }
 199
 200                         if (!(o is Class)){
 201                                 if (o is DeclSpace){
 202                                         DeclSpace d = (DeclSpace) o;
 203
 204                                         Error_TypeConflict (name, d.Location);
 205                                 } else
 206                                         Error_TypeConflict (name);
 207
 208                                 return null;
 209                         }
 210
 211                         return ((DeclSpace) o).DefineType ();
 212                 }
 213
 214                 //
 215                 // Resolves a struct during the corlib bootstrap process
 216                 //
 217                 static void BootstrapCorlib_ResolveStruct (TypeContainer root, string name)
 218                 {
 219                         object o = root.GetDefinition (name);
 220                         if (o == null){
 221                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 222                                 return;
 223                         }
 224
 225                         if (!(o is Struct)){
 226                                 if (o is DeclSpace){
 227                                         DeclSpace d = (DeclSpace) o;
 228
 229                                         Error_TypeConflict (name, d.Location);
 230                                 } else
 231                                         Error_TypeConflict (name);
 232
 233                                 return;
 234                         }
 235
 236                         ((DeclSpace) o).DefineType ();
 237                 }
 238
 239                 //
 240                 // Resolves a struct during the corlib bootstrap process
 241                 //
 242                 static void BootstrapCorlib_ResolveInterface (TypeContainer root, string name)
 243                 {
 244                         object o = root.GetDefinition (name);
 245                         if (o == null){
 246                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 247                                 return;
 248                         }
 249
 250                         if (!(o is Interface)){
 251                                 if (o is DeclSpace){
 252                                         DeclSpace d = (DeclSpace) o;
 253
 254                                         Error_TypeConflict (name, d.Location);
 255                                 } else
 256                                         Error_TypeConflict (name);
 257
 258                                 return;
 259                         }
 260
 261                         ((DeclSpace) o).DefineType ();
 262                 }
 263
 264                 //
 265                 // Resolves a delegate during the corlib bootstrap process
 266                 //
 267                 static void BootstrapCorlib_ResolveDelegate (TypeContainer root, string name)
 268                 {
 269                         object o = root.GetDefinition (name);
 270                         if (o == null){
 271                                 Report.Error (518, "The predefined type `" + name + "' is not defined");
 272                                 Environment.Exit (1);
 273                         }
 274
 275                         if (!(o is Delegate)){
 276                                 Error_TypeConflict (name);
 277                                 return;
 278                         }
 279
 280                         ((DeclSpace) o).DefineType ();
 281                 }
 282
 283
 284                 /// <summary>
 285                 ///    Resolves the core types in the compiler when compiling with --nostdlib
 286                 /// </summary>
 287                 static public void ResolveCore ()
 288                 {
 289                         TypeContainer root = Tree.Types;
 290
 291                         TypeManager.object_type = BootstrapCorlib_ResolveClass (root, "System.Object");
 292                         TypeManager.value_type = BootstrapCorlib_ResolveClass (root, "System.ValueType");
 293                         TypeManager.attribute_type = BootstrapCorlib_ResolveClass (root, "System.Attribute");
 294
 295                         string [] interfaces_first_stage = {
 296                                 "System.IComparable", "System.ICloneable",
 297                                 "System.IConvertible",
 298
 299                                 "System.Collections.IEnumerable",
 300                                 "System.Collections.ICollection",
 301                                 "System.Collections.IEnumerator",
 302                                 "System.Collections.IList",
 303                                 "System.IAsyncResult",
 304                                 "System.IDisposable",
 305
 306                                 "System.Runtime.Serialization.ISerializable",
 307                                 "System.Runtime.InteropServices._Exception",
 308
 309                                 "System.Reflection.IReflect",
 310                                 "System.Reflection.ICustomAttributeProvider",
 311
 312                                 //
 313                                 // Generic types
 314                                 //
 315                                 "System.Collections.Generic.IEnumerator`1",
 316                                 "System.Collections.Generic.IEnumerable`1"
 317                         };
 318
 319                         foreach (string iname in interfaces_first_stage)
 320                                 BootstrapCorlib_ResolveInterface (root, iname);
 321
 322                         //
 323                         // These are the base value types
 324                         //
 325                         string [] structs_first_stage = {
 326                                 "System.Byte",    "System.SByte",
 327                                 "System.Int16",   "System.UInt16",
 328                                 "System.Int32",   "System.UInt32",
 329                                 "System.Int64",   "System.UInt64",
 330                         };
 331
 332                         foreach (string cname in structs_first_stage)
 333                                 BootstrapCorlib_ResolveStruct (root, cname);
 334
 335                         //
 336                         // Now, we can load the enumerations, after this point,
 337                         // we can use enums.
 338                         //
 339                         TypeManager.InitEnumUnderlyingTypes ();
 340
 341                         string [] structs_second_stage = {
 342                                 "System.Single",  "System.Double",
 343                                 "System.Char",    "System.Boolean",
 344                                 "System.Decimal", "System.Void",
 345                                 "System.RuntimeFieldHandle",
 346                                 "System.RuntimeArgumentHandle",
 347                                 "System.RuntimeTypeHandle",
 348                                 "System.IntPtr",
 349                                 "System.TypedReference",
 350                                 "System.ArgIterator"
 351                         };
 352
 353                         foreach (string cname in structs_second_stage)
 354                                 BootstrapCorlib_ResolveStruct (root, cname);
 355
 356                         //
 357                         // These are classes that depends on the core interfaces
 358                         //
 359                         string [] classes_second_stage = {
 360                                 "System.Reflection.MemberInfo",
 361                                 "System.Type",
 362                                 "System.Exception",
 363                                 "System.Activator",
 364
 365                                 //
 366                                 // These are not really important in the order, but they
 367                                 // are used by the compiler later on (typemanager/CoreLookupType-d)
 368                                 //
 369                                 "System.Runtime.CompilerServices.RuntimeHelpers",
 370                                 "System.Reflection.DefaultMemberAttribute",
 371                                 "System.Threading.Monitor",
 372
 373                                 "System.AttributeUsageAttribute",
 374                                 "System.Runtime.InteropServices.DllImportAttribute",
 375                                 "System.Runtime.CompilerServices.MethodImplAttribute",
 376                                 "System.Runtime.InteropServices.MarshalAsAttribute",
 377                                 "System.Runtime.CompilerServices.NewConstraintAttribute",
 378                                 "System.Diagnostics.ConditionalAttribute",
 379                                 "System.ObsoleteAttribute",
 380                                 "System.ParamArrayAttribute",
 381                                 "System.CLSCompliantAttribute",
 382                                 "System.Security.UnverifiableCodeAttribute",
 383                                 "System.Security.Permissions.SecurityAttribute",
 384                                 "System.Runtime.CompilerServices.IndexerNameAttribute",
 385                                 "System.Runtime.CompilerServices.DecimalConstantAttribute",
 386                                 "System.Runtime.InteropServices.InAttribute",
 387                                 "System.Runtime.InteropServices.StructLayoutAttribute",
 388                                 "System.Runtime.InteropServices.FieldOffsetAttribute",
 389                                 "System.InvalidOperationException",
 390                                 "System.NotSupportedException",
 391                                 "System.MarshalByRefObject",
 392                                 "System.Security.CodeAccessPermission"
 393                         };
 394
 395                         // We must store them here before calling BootstrapCorlib_ResolveDelegate.
 396                         TypeManager.string_type = BootstrapCorlib_ResolveClass (root, "System.String");
 397                         TypeManager.enum_type = BootstrapCorlib_ResolveClass (root, "System.Enum");
 398                         TypeManager.array_type = BootstrapCorlib_ResolveClass (root, "System.Array");
 399                         TypeManager.multicast_delegate_type = BootstrapCorlib_ResolveClass (root, "System.MulticastDelegate");
 400                         TypeManager.delegate_type = BootstrapCorlib_ResolveClass (root, "System.Delegate");
 401
 402                         foreach (string cname in classes_second_stage)
 403                                 BootstrapCorlib_ResolveClass (root, cname);
 404
 405                         BootstrapCorlib_ResolveDelegate (root, "System.AsyncCallback");
 406                 }
 407
 408                 // <summary>
 409                 //   Closes all open types
 410                 // </summary>
 411                 //
 412                 // <remarks>
 413                 //   We usually use TypeBuilder types.  When we are done
 414                 //   creating the type (which will happen after we have added
 415                 //   methods, fields, etc) we need to "Define" them before we
 416                 //   can save the Assembly
 417                 // </remarks>
 418                 static public void CloseTypes ()
 419                 {
 420                         TypeContainer root = Tree.Types;
 421
 422                         if (root.Enums != null)
 423                                 foreach (Enum en in root.Enums)
 424                                         en.CloseType ();
 425
 426                         if (attribute_types != null)
 427                                 foreach (TypeContainer tc in attribute_types)
 428                                         tc.CloseType ();
 429
 430                         //
 431                         // We do this in two passes, first we close the structs,
 432                         // then the classes, because it seems the code needs it this
 433                         // way.  If this is really what is going on, we should probably
 434                         // make sure that we define the structs in order as well.
 435                         //
 436                         foreach (TypeContainer tc in type_container_resolve_order){
 437                                 if (tc.Kind == Kind.Struct && tc.Parent == tree.Types){
 438                                         tc.CloseType ();
 439                                 }
 440                         }
 441
 442                         foreach (TypeContainer tc in type_container_resolve_order){
 443                                 if (!(tc.Kind == Kind.Struct && tc.Parent == tree.Types))
 444                                         tc.CloseType ();
 445                         }
 446
 447                         if (root.Delegates != null)
 448                                 foreach (Delegate d in root.Delegates)
 449                                         d.CloseType ();
 450
 451
 452                         //
 453                         // If we have a <PrivateImplementationDetails> class, close it
 454                         //
 455                         if (helper_classes != null){
 456                                 foreach (TypeBuilder type_builder in helper_classes)
 457                                         type_builder.CreateType ();
 458                         }
 459
 460                         attribute_types = null;
 461                         type_container_resolve_order = null;
 462                         helper_classes = null;
 463                         //tree = null;
 464                         TypeManager.CleanUp ();
 465                 }
 466
 467                 /// <summary>
 468                 ///   Used to register classes that need to be closed after all the
 469                 ///   user defined classes
 470                 /// </summary>
 471                 public static void RegisterHelperClass (TypeBuilder helper_class)
 472                 {
 473                         if (helper_classes == null)
 474                                 helper_classes = new ArrayList ();
 475                         helper_classes.Add (helper_class);
 476                 }
 477
 478                 //
 479                 // This idea is from Felix Arrese-Igor
 480                 //
 481                 // Returns : the implicit parent of a composite namespace string
 482                 //   eg. Implicit parent of A.B is A
 483                 //
 484                 static public string ImplicitParent (string ns)
 485                 {
 486                         int i = ns.LastIndexOf ('.');
 487                         if (i < 0)
 488                                 return null;
 489
 490                         return ns.Substring (0, i);
 491                 }
 492
 493                 static Type NamespaceLookup (DeclSpace ds, string name, int num_type_args, Location loc)
 494                 {
 495                         //
 496                         // Try in the current namespace and all its implicit parents
 497                         //
 498                         for (NamespaceEntry ns = ds.NamespaceEntry; ns != null; ns = ns.ImplicitParent) {
 499                                 IAlias result = ns.Lookup (ds, name, num_type_args, false, loc);
 500
 501                                 if (result == null)
 502                                         continue;
 503
 504                                 if (!result.IsType)
 505                                         return null;
 506
 507                                 TypeExpr texpr = result.ResolveAsType (ds.EmitContext);
 508                                 if (texpr == null)
 509                                         return null;
 510
 511                                 return texpr.Type;
 512                         }
 513
 514                         return null;
 515                 }
 516
 517                 static public Type LookupType (DeclSpace ds, string name, bool silent, Location loc)
 518                 {
 519                         return LookupType (ds, name, silent, 0, loc);
 520                 }
 521
 522                 //
 523                 // Public function used to locate types, this can only
 524                 // be used after the ResolveTree function has been invoked.
 525                 //
 526                 // Returns: Type or null if they type can not be found.
 527                 //
 528                 // Come to think of it, this should be a DeclSpace
 529                 //
 530                 static public Type LookupType (DeclSpace ds, string name, bool silent,
 531                                                int num_type_params, Location loc)
 532                 {
 533                         Type t;
 534
 535                         if (ds.Cache.Contains (name)){
 536                                 t = (Type) ds.Cache [name];
 537                                 if (t != null)
 538                                         return t;
 539                         } else {
 540                                 //
 541                                 // For the case the type we are looking for is nested within this one
 542                                 // or is in any base class
 543                                 //
 544                                 DeclSpace containing_ds = ds;
 545                                 while (containing_ds != null){
 546                                         Type current_type = containing_ds.TypeBuilder;
 547
 548                                         while (current_type != null) {
 549                                                 //
 550                                                 // nested class
 551                                                 //
 552                                                 Type type = TypeManager.LookupType (current_type.FullName + "." + name);
 553                                                 if (type != null){
 554                                                         t = ds.ResolveNestedType (type, loc);
 555                                                         ds.Cache [name] = t;
 556                                                         return t;
 557                                                 }
 558
 559                                                 current_type = current_type.BaseType;
 560                                         }
 561
 562                                         containing_ds = containing_ds.Parent;
 563                                 }
 564
 565                                 t = NamespaceLookup (ds, name, num_type_params, loc);
 566                                 if (!silent || t != null){
 567                                         ds.Cache [name] = t;
 568                                         return t;
 569                                 }
 570                         }
 571
 572                         if (!silent)
 573                                 Report.Error (246, loc, "Cannot find type `"+name+"'");
 574
 575                         return null;
 576                 }
 577
 578                 // <summary>
 579                 //   This is the silent version of LookupType, you can use this
 580                 //   to `probe' for a type
 581                 // </summary>
 582                 static public Type LookupType (TypeContainer tc, string name, Location loc)
 583                 {
 584                         return LookupType (tc, name, true, loc);
 585                 }
 586
 587                 static void Report1530 (Location loc)
 588                 {
 589                         Report.Error (1530, loc, "Keyword new not allowed for namespace elements");
 590                 }
 591
 592                 static public void PopulateCoreType (TypeContainer root, string name)
 593                 {
 594                         DeclSpace ds = (DeclSpace) root.GetDefinition (name);
 595
 596                         ds.DefineMembers (root);
 597                         ds.Define ();
 598                 }
 599
 600                 static public void BootCorlib_PopulateCoreTypes ()
 601                 {
 602                         TypeContainer root = tree.Types;
 603
 604                         PopulateCoreType (root, "System.Object");
 605                         PopulateCoreType (root, "System.ValueType");
 606                         PopulateCoreType (root, "System.Attribute");
 607                 }
 608
 609                 // <summary>
 610                 //   Populates the structs and classes with fields and methods
 611                 // </summary>
 612                 //
 613                 // This is invoked after all interfaces, structs and classes
 614                 // have been defined through `ResolveTree'
 615                 static public void PopulateTypes ()
 616                 {
 617                         TypeContainer root = Tree.Types;
 618
 619                         if (attribute_types != null)
 620                                 foreach (TypeContainer tc in attribute_types)
 621                                         tc.DefineMembers (root);
 622
 623                         if (type_container_resolve_order != null){
 624                                 if (RootContext.StdLib){
 625                                         foreach (TypeContainer tc in type_container_resolve_order)
 626                                                 tc.DefineMembers (root);
 627                                 } else {
 628                                         foreach (TypeContainer tc in type_container_resolve_order) {
 629                                                 // When compiling corlib, these types have already been
 630                                                 // populated from BootCorlib_PopulateCoreTypes ().
 631                                                 if (((tc.Name == "System.Object") ||
 632                                                      (tc.Name == "System.Attribute") ||
 633                                                      (tc.Name == "System.ValueType")))
 634                                                 continue;
 635
 636                                                 tc.DefineMembers (root);
 637                                         }
 638                                 }
 639                         }
 640
 641                         ArrayList delegates = root.Delegates;
 642                         if (delegates != null){
 643                                 foreach (Delegate d in delegates)
 644                                         if ((d.ModFlags & Modifiers.NEW) == 0)
 645                                                 d.DefineMembers (root);
 646                                         else
 647                                                 Report1530 (d.Location);
 648                         }
 649
 650                         ArrayList enums = root.Enums;
 651                         if (enums != null){
 652                                 foreach (Enum en in enums)
 653                                         if ((en.ModFlags & Modifiers.NEW) == 0)
 654                                                 en.DefineMembers (root);
 655                                         else
 656                                                 Report1530 (en.Location);
 657                         }
 658
 659                         //
 660                         // Check for cycles in the struct layout
 661                         //
 662                         if (type_container_resolve_order != null){
 663                                 Hashtable seen = new Hashtable ();
 664                                 foreach (TypeContainer tc in type_container_resolve_order)
 665                                         TypeManager.CheckStructCycles (tc, seen);
 666                         }
 667                 }
 668
 669                 //
 670                 // A generic hook delegate
 671                 //
 672                 public delegate void Hook ();
 673
 674                 //
 675                 // A hook invoked when the code has been generated.
 676                 //
 677                 public static event Hook EmitCodeHook;
 678
 679                 //
 680                 // DefineTypes is used to fill in the members of each type.
 681                 //
 682                 static public void DefineTypes ()
 683                 {
 684                         TypeContainer root = Tree.Types;
 685
 686                         if (attribute_types != null)
 687                                 foreach (TypeContainer tc in attribute_types)
 688                                         tc.Define ();
 689
 690                         if (type_container_resolve_order != null){
 691                                 foreach (TypeContainer tc in type_container_resolve_order) {
 692                                         // When compiling corlib, these types have already been
 693                                         // populated from BootCorlib_PopulateCoreTypes ().
 694                                         if (!RootContext.StdLib &&
 695                                             ((tc.Name == "System.Object") ||
 696                                              (tc.Name == "System.Attribute") ||
 697                                              (tc.Name == "System.ValueType")))
 698                                                 continue;
 699
 700                                         if ((tc.ModFlags & Modifiers.NEW) == 0)
 701                                                 tc.Define ();
 702                                 }
 703                         }
 704
 705                         ArrayList delegates = root.Delegates;
 706                         if (delegates != null){
 707                                 foreach (Delegate d in delegates)
 708                                         if ((d.ModFlags & Modifiers.NEW) == 0)
 709                                                 d.Define ();
 710                         }
 711
 712                         ArrayList enums = root.Enums;
 713                         if (enums != null){
 714                                 foreach (Enum en in enums)
 715                                         if ((en.ModFlags & Modifiers.NEW) == 0)
 716                                                 en.Define ();
 717                         }
 718                 }
 719
 720                 static public void EmitCode ()
 721                 {
 722                         if (attribute_types != null)
 723                                 foreach (TypeContainer tc in attribute_types)
 724                                         tc.EmitType ();
 725
 726                         CodeGen.Assembly.Emit (Tree.Types);
 727                         CodeGen.Module.Emit (Tree.Types);
 728
 729                         if (Tree.Types.Enums != null) {
 730                                 foreach (Enum e in Tree.Types.Enums)
 731                                         e.Emit ();
 732                         }
 733
 734                         if (type_container_resolve_order != null) {
 735                                 foreach (TypeContainer tc in type_container_resolve_order)
 736                                         tc.EmitType ();
 737                         }
 738
 739                         if (Tree.Types.Delegates != null) {
 740                                 foreach (Delegate d in Tree.Types.Delegates)
 741                                         d.Emit ();
 742                         }
 743                         //
 744                         // Run any hooks after all the types have been defined.
 745                         // This is used to create nested auxiliary classes for example
 746                         //
 747
 748                         if (EmitCodeHook != null)
 749                                 EmitCodeHook ();
 750                 }
 751
 752                 //
 753                 // Public Field, used to track which method is the public entry
 754                 // point.
 755                 //
 756                 static public MethodInfo EntryPoint;
 757
 758                 //
 759                 // Track the location of the entry point.
 760                 //
 761                 static public Location EntryPointLocation;
 762
 763                 //
 764                 // These are used to generate unique names on the structs and fields.
 765                 //
 766                 static int field_count;
 767
 768                 //
 769                 // Makes an initialized struct, returns the field builder that
 770                 // references the data.  Thanks go to Sergey Chaban for researching
 771                 // how to do this.  And coming up with a shorter mechanism than I
 772                 // was able to figure out.
 773                 //
 774                 // This works but makes an implicit public struct $ArrayType$SIZE and
 775                 // makes the fields point to it.  We could get more control if we did
 776                 // use instead:
 777                 //
 778                 // 1. DefineNestedType on the impl_details_class with our struct.
 779                 //
 780                 // 2. Define the field on the impl_details_class
 781                 //
 782                 static public FieldBuilder MakeStaticData (byte [] data)
 783                 {
 784                         FieldBuilder fb;
 785
 786                         if (impl_details_class == null){
 787                                 impl_details_class = CodeGen.Module.Builder.DefineType (
 788                                         "<PrivateImplementationDetails>",
 789                                         TypeAttributes.NotPublic,
 790                                         TypeManager.object_type);
 791
 792                                 RegisterHelperClass (impl_details_class);
 793                         }
 794
 795                         fb = impl_details_class.DefineInitializedData (
 796                                 "$$field-" + (field_count++), data,
 797                                 FieldAttributes.Static | FieldAttributes.Assembly);
 798
 799                         return fb;
 800                 }
 801         }
 802 }
 803
 804