mcs/class/corlib/Test/System.Reflection.Emit/ModuleBuilderTest.cs

   1 //
   2 // ModuleBuilderTest - NUnit Test Cases for the ModuleBuilder class
   3 //
   4 // Zoltan Varga (vargaz@freemail.hu)
   5 //
   6 // (C) Ximian, Inc.  http://www.ximian.com
   7 //
   8 //
   9
  10
  11 using System;
  12 using System.Threading;
  13 using System.Reflection;
  14 using System.Reflection.Emit;
  15 using System.IO;
  16 using System.Collections;
  17 using System.Diagnostics.SymbolStore;
  18 using System.Runtime.InteropServices;
  19
  20 using NUnit.Framework;
  21
  22 namespace MonoTests.System.Reflection.Emit
  23 {
  24         [TestFixture]
  25         public class ModuleBuilderTest
  26         {
  27                 static string tempDir = Path.Combine (Path.GetTempPath (), typeof (ModuleBuilderTest).FullName);
  28                 static int nameIndex = 0;
  29
  30                 [SetUp]
  31                 public void SetUp ()
  32                 {
  33                         Random AutoRand = new Random ();
  34                         string basePath = tempDir;
  35                         while (Directory.Exists (tempDir))
  36                                 tempDir = Path.Combine (basePath, AutoRand.Next ().ToString ());
  37                         Directory.CreateDirectory (tempDir);
  38                 }
  39
  40                 [TearDown]
  41                 public void TearDown ()
  42                 {
  43                         try {
  44                                 // This throws an exception under MS.NET, since the directory contains loaded
  45                                 // assemblies.
  46                                 Directory.Delete (tempDir, true);
  47                         } catch (Exception) {
  48                         }
  49                 }
  50
  51                 private AssemblyName genAssemblyName ()
  52                 {
  53                         AssemblyName assemblyName = new AssemblyName();
  54                         assemblyName.Name = typeof (ModuleBuilderTest).FullName + (nameIndex ++);
  55                         return assemblyName;
  56                 }
  57
  58                 private AssemblyBuilder genAssembly ()
  59                 {
  60                         return Thread.GetDomain ().DefineDynamicAssembly (genAssemblyName (),
  61                                                                                                                           AssemblyBuilderAccess.RunAndSave,
  62                                                                                                                           tempDir);
  63                 }
  64
  65                 [Test]
  66                 public void TestIsTransient ()
  67                 {
  68                         AssemblyBuilder ab = genAssembly ();
  69                         ModuleBuilder mb1 = ab.DefineDynamicModule ("foo.dll");
  70                         Assert.IsTrue (mb1.IsTransient (), "#1");
  71                         ModuleBuilder mb2 = ab.DefineDynamicModule ("foo2.dll", "foo2.dll");
  72                         Assert.IsFalse (mb2.IsTransient (), "#2");
  73                 }
  74
  75                 // Some of these tests overlap with the tests for Module
  76
  77                 [Test]
  78                 public void TestGlobalData ()
  79                 {
  80                         AssemblyBuilder ab = genAssembly ();
  81
  82                         string resfile = Path.Combine (tempDir, "res");
  83                         using (StreamWriter sw = new StreamWriter (resfile)) {
  84                                 sw.WriteLine ("FOO");
  85                         }
  86
  87                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll");
  88
  89                         mb.DefineInitializedData ("DATA", new byte [100], FieldAttributes.Public);
  90                         mb.DefineInitializedData ("DATA2", new byte [100], FieldAttributes.Public);
  91                         mb.DefineInitializedData ("DATA3", new byte [99], FieldAttributes.Public);
  92                         mb.DefineUninitializedData ("DATA4", 101, FieldAttributes.Public);
  93                         mb.DefineInitializedData ("DATA_PRIVATE", new byte [100], 0);
  94                         mb.CreateGlobalFunctions ();
  95
  96                         ab.Save ("foo.dll");
  97
  98                         Assembly assembly = Assembly.LoadFrom (Path.Combine (tempDir, "foo.dll"));
  99
 100                         Module module = assembly.GetLoadedModules () [0];
 101
 102                         string [] expectedFieldNames = new string [] {
 103                                 "DATA", "DATA2", "DATA3", "DATA4" };
 104                         ArrayList fieldNames = new ArrayList ();
 105                         foreach (FieldInfo fi in module.GetFields ()) {
 106                                 fieldNames.Add (fi.Name);
 107                         }
 108                         AssertArrayEqualsSorted (expectedFieldNames, fieldNames.ToArray (typeof (string)));
 109
 110                         Assert.IsNotNull (module.GetField ("DATA"), "#1");
 111                         Assert.IsNotNull (module.GetField ("DATA2"), "#2");
 112                         Assert.IsNotNull (module.GetField ("DATA3"), "#3");
 113                         Assert.IsNotNull (module.GetField ("DATA4"), "#4");
 114                         Assert.IsNull (module.GetField ("DATA_PRIVATE"), "#5");
 115                         Assert.IsNotNull (module.GetField ("DATA_PRIVATE", BindingFlags.NonPublic | BindingFlags.Static), "#6");
 116                 }
 117
 118                 [Test]
 119                 [Category("NotWorking")]
 120                 public void TestGlobalMethods ()
 121                 {
 122                         AssemblyBuilder builder = genAssembly ();
 123                         ModuleBuilder module = builder.DefineDynamicModule ("MessageModule");
 124                         MethodBuilder method = module.DefinePInvokeMethod ("printf", "libc.so",
 125                                                                                                                           MethodAttributes.PinvokeImpl | MethodAttributes.Static | MethodAttributes.Public,
 126                                                                                                                           CallingConventions.Standard, typeof (void), new Type [] { typeof (string) }, CallingConvention.Winapi,
 127                                                                                                                           CharSet.Auto);
 128                         method.SetImplementationFlags (MethodImplAttributes.PreserveSig |
 129                                                                                    method.GetMethodImplementationFlags ());
 130
 131                         Assert.IsNull (module.GetMethod ("printf"), "#1");
 132
 133                         module.CreateGlobalFunctions ();
 134
 135                         Assert.IsNotNull (module.GetMethod ("printf"), "#2");
 136                 }
 137
 138                 [Test]
 139                 public void DefineType_Name_Null ()
 140                 {
 141                         AssemblyBuilder ab = genAssembly ();
 142                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll", true);
 143                         try {
 144                                 mb.DefineType ((string) null);
 145                                 Assert.Fail ("#1");
 146                         } catch (ArgumentNullException ex) {
 147                                 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
 148                                 Assert.IsNull (ex.InnerException, "#3");
 149                                 Assert.IsNotNull (ex.Message, "#4");
 150                                 Assert.AreEqual ("fullname", ex.ParamName, "#5");
 151                         }
 152                 }
 153
 154                 [Test]
 155                 public void DefineType_Name_Empty ()
 156                 {
 157                         AssemblyBuilder ab = genAssembly ();
 158                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll", true);
 159                         try {
 160                                 mb.DefineType (string.Empty);
 161                                 Assert.Fail ("#1");
 162                         } catch (ArgumentException ex) {
 163                                 // Empty name is not legal
 164                                 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
 165                                 Assert.IsNull (ex.InnerException, "#3");
 166                                 Assert.IsNotNull (ex.Message, "#4");
 167                                 Assert.AreEqual ("fullname", ex.ParamName, "#5");
 168                         }
 169                 }
 170
 171                 [Test]
 172                 public void DefineType_Name_NullChar ()
 173                 {
 174                         AssemblyBuilder ab = genAssembly ();
 175                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll", true);
 176                         try {
 177                                 mb.DefineType ("\0test");
 178                                 Assert.Fail ("#1");
 179                         } catch (ArgumentException ex) {
 180                                 // Illegal name
 181                                 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
 182                                 Assert.IsNull (ex.InnerException, "#3");
 183                                 Assert.IsNotNull (ex.Message, "#4");
 184                                 Assert.AreEqual ("fullname", ex.ParamName, "#5");
 185                         }
 186
 187                         mb.DefineType ("te\0st");
 188                 }
 189
 190                 [Test]
 191                 public void DefineType_InterfaceNotAbstract ()
 192                 {
 193                         AssemblyBuilder ab = genAssembly ();
 194                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll", true);
 195
 196                         try {
 197                                 mb.DefineType ("ITest1", TypeAttributes.Interface);
 198                                 Assert.Fail ("#A1");
 199                         } catch (InvalidOperationException ex) {
 200                                 // Interface must be declared abstract
 201                                 Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#A2");
 202                                 Assert.IsNull (ex.InnerException, "#A3");
 203                                 Assert.IsNotNull (ex.Message, "#A4");
 204                         }
 205
 206                         try {
 207                                 mb.DefineType ("ITest2", TypeAttributes.Interface, (Type) null);
 208                                 Assert.Fail ("#B1");
 209                         } catch (InvalidOperationException ex) {
 210                                 // Interface must be declared abstract
 211                                 Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#B2");
 212                                 Assert.IsNull (ex.InnerException, "#B3");
 213                                 Assert.IsNotNull (ex.Message, "#B4");
 214                         }
 215
 216                         // fail on MS .NET 1.1
 217                         TypeBuilder tb = mb.DefineType ("ITest2", TypeAttributes.Interface,
 218                                 typeof (object));
 219                         Assert.AreEqual (typeof (object), tb.BaseType, "#C1");
 220
 221                         tb = mb.DefineType ("ITest3", TypeAttributes.Interface,
 222                                 typeof (IDisposable));
 223                         Assert.AreEqual (typeof (IDisposable), tb.BaseType, "#D1");
 224                 }
 225
 226                 [Test]
 227 #if ONLY_1_1
 228                 [Category ("NotDotNet")] // Parent type was not extensible by the given type
 229 #endif
 230                 public void DefineType_Parent_Interface ()
 231                 {
 232                         TypeBuilder tb;
 233
 234                         AssemblyBuilder ab = genAssembly ();
 235                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll", true);
 236
 237                         tb = mb.DefineType ("Foo", TypeAttributes.Class,
 238                                 typeof (ICollection));
 239                         Assert.AreEqual (typeof (ICollection), tb.BaseType, "#1");
 240
 241                         tb = mb.DefineType ("Bar", TypeAttributes.Interface,
 242                                 typeof (ICollection));
 243                         Assert.AreEqual (typeof (ICollection), tb.BaseType, "#2");
 244                 }
 245
 246                 [Test]
 247                 [ExpectedException (typeof (ArgumentException))]
 248                 public void DuplicateTypeName () {
 249                         AssemblyBuilder ab = genAssembly ();
 250                         ModuleBuilder module = ab.DefineDynamicModule ("foo.dll", "foo.dll", true);
 251
 252                         var itb = module.DefineType ("TBase", TypeAttributes.Public);
 253
 254                         itb.SetParent (typeof(ValueType));
 255
 256                         var ptb = module.DefineType ("TBase", TypeAttributes.Public);
 257
 258                         ptb.SetParent (typeof(Enum));
 259                 }
 260
 261                 [Test]
 262                 public void DuplicateSymbolDocument ()
 263                 {
 264                         AssemblyBuilder ab = genAssembly ();
 265                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll", true);
 266
 267                         // Check that it is possible to redefine a symbol document
 268                         ISymbolDocumentWriter doc1 =
 269                                 mb.DefineDocument ("foo.il", SymDocumentType.Text,
 270                                                                   SymLanguageType.ILAssembly, SymLanguageVendor.Microsoft);
 271                         ISymbolDocumentWriter doc2 =
 272                                 mb.DefineDocument ("foo.il", SymDocumentType.Text,
 273                                                                   SymLanguageType.ILAssembly, SymLanguageVendor.Microsoft);
 274                 }
 275
 276                 [Test] // Test case for #80435.
 277                 public void GetArrayMethodToStringTest ()
 278                 {
 279                         AssemblyBuilder assembly = genAssembly ();
 280                         ModuleBuilder module = assembly.DefineDynamicModule ("m", "test.dll");
 281
 282                         Type [] myArrayClass = new Type [1];
 283                         Type [] parameterTypes = { typeof (Array) };
 284                         MethodInfo myMethodInfo = module.GetArrayMethod (myArrayClass.GetType (), "Sort", CallingConventions.Standard, null, parameterTypes);
 285
 286                         string str = myMethodInfo.ToString ();
 287                         Assert.IsNotNull (str);
 288                         // Don't compare string, since MS returns System.Reflection.Emit.SymbolMethod here
 289                         // (they do not provide an implementation of ToString).
 290                 }
 291
 292                 private static void AssertArrayEqualsSorted (Array o1, Array o2)
 293                 {
 294                         Array s1 = (Array) o1.Clone ();
 295                         Array s2 = (Array) o2.Clone ();
 296
 297                         Array.Sort (s1);
 298                         Array.Sort (s2);
 299
 300                         Assert.AreEqual (s1.Length, s2.Length, "#1");
 301                         for (int i = 0; i < s1.Length; ++i)
 302                                 Assert.AreEqual (s1.GetValue (i), s2.GetValue (i), "#2: " + i);
 303                 }
 304
 305                 [Test]
 306                 public void ResolveFieldTokenFieldBuilder ()
 307                 {
 308                         AssemblyBuilder ab = genAssembly ();
 309                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll");
 310
 311                         TypeBuilder tb = mb.DefineType ("foo");
 312                         FieldBuilder fb = tb.DefineField ("foo", typeof (int), 0);
 313                         tb.CreateType ();
 314
 315                         FieldInfo fi = mb.ResolveField (0x04000001);
 316                         Assert.IsNotNull (fi);
 317                         Assert.AreEqual ("foo", fi.Name);
 318                 }
 319
 320                 [Test]
 321                 public void ResolveGenericFieldBuilderOnGenericTypeBuilder ()
 322                 {
 323                         AssemblyBuilder ab = genAssembly ();
 324                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll");
 325
 326                         TypeBuilder tb = mb.DefineType ("Foo`1");
 327                         var t = tb.DefineGenericParameters ("T") [0];
 328                         FieldBuilder fb = tb.DefineField ("foo", t, 0);
 329                         tb.CreateType ();
 330
 331                         FieldInfo fi = mb.ResolveField (0x04000001);
 332                         Assert.IsNotNull (fi);
 333                         Assert.AreEqual ("foo", fi.Name);
 334                 }
 335
 336                 [Test]
 337                 [ExpectedException (typeof (ArgumentException))]
 338                 public void ResolveFieldTokenInvalidToken ()
 339                 {
 340                         AssemblyBuilder ab = genAssembly ();
 341                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll");
 342
 343                         mb.ResolveField (0x4001234);
 344                 }
 345
 346                 [Test]
 347                 public void ResolveMethodTokenMethodBuilder ()
 348                 {
 349                         AssemblyBuilder ab = genAssembly ();
 350                         ModuleBuilder moduleb = ab.DefineDynamicModule ("foo.dll", "foo.dll");
 351
 352                         TypeBuilder tb = moduleb.DefineType ("foo");
 353                         MethodBuilder mb = tb.DefineMethod("Frub", MethodAttributes.Static, null, new Type[] { typeof(IntPtr) });
 354                         int tok = mb.GetToken().Token;
 355                         mb.SetImplementationFlags(MethodImplAttributes.NoInlining);
 356                         ILGenerator ilgen = mb.GetILGenerator();
 357                         ilgen.Emit(OpCodes.Ret);
 358
 359                         tb.CreateType ();
 360
 361                         MethodBase mi = moduleb.ResolveMethod (tok);
 362                         Assert.IsNotNull (mi);
 363                         Assert.AreEqual ("Frub", mi.Name);
 364                 }
 365
 366                 [Test]
 367                 public void ResolveMemberField ()
 368                 {
 369                         var assembly = genAssembly ();
 370                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 371
 372                         var type = module.DefineType ("Foo");
 373                         var method = type.DefineMethod ("Str", MethodAttributes.Static, typeof (string), Type.EmptyTypes);
 374                         var il = method.GetILGenerator ();
 375
 376                         il.Emit (OpCodes.Ldsfld, typeof (string).GetField ("Empty"));
 377                         il.Emit (OpCodes.Ret);
 378
 379                         type.CreateType ();
 380
 381                         var string_empty = (FieldInfo) module.ResolveMember (0x0a000001);
 382                         Assert.IsNotNull (string_empty);
 383                         Assert.AreEqual ("Empty", string_empty.Name);
 384                         Assert.AreEqual (typeof (string), string_empty.DeclaringType);
 385                 }
 386
 387                 [Test]
 388                 public void ResolveMemberMethod ()
 389                 {
 390                         var assembly = genAssembly ();
 391                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 392
 393                         var type = module.DefineType ("Foo");
 394                         var method = type.DefineMethod ("Str", MethodAttributes.Static, typeof (void), Type.EmptyTypes);
 395                         var il = method.GetILGenerator ();
 396
 397                         il.Emit (OpCodes.Call, typeof (Console).GetMethod ("WriteLine", Type.EmptyTypes));
 398                         il.Emit (OpCodes.Ret);
 399
 400                         type.CreateType ();
 401
 402                         var writeline = (MethodInfo) module.ResolveMember (0x0a000001);
 403                         Assert.IsNotNull (writeline);
 404                         Assert.AreEqual ("WriteLine", writeline.Name);
 405                         Assert.AreEqual (typeof (Console), writeline.DeclaringType);
 406                 }
 407
 408                 [Test]
 409                 public void ResolveMethodDefWithGenericArguments ()
 410                 {
 411                         var assembly = genAssembly ();
 412                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 413
 414                         var type = module.DefineType ("Foo`1");
 415                         var t = type.DefineGenericParameters ("T") [0];
 416
 417                         var method = type.DefineMethod ("Method", MethodAttributes.Static, typeof (void), new Type [] { t });
 418                         method.GetILGenerator ().Emit (OpCodes.Ret);
 419
 420                         type.DefineDefaultConstructor (MethodAttributes.Public);
 421
 422                         type.CreateType ();
 423
 424                         var resolved_method = (MethodInfo) module.ResolveMember (0x06000001, new [] { typeof (string) }, Type.EmptyTypes);
 425                         Assert.IsNotNull (resolved_method);
 426                         Assert.AreEqual ("Method", resolved_method.Name);
 427                         Assert.IsTrue (resolved_method.GetParameters () [0].ParameterType.IsGenericParameter);
 428                 }
 429
 430                 [Test]
 431                 public void ResolveFieldDefWithGenericArguments ()
 432                 {
 433                         var assembly = genAssembly ();
 434                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 435
 436                         var type = module.DefineType ("Foo`1");
 437                         var t = type.DefineGenericParameters ("T") [0];
 438
 439                         var field = type.DefineField ("field", t, FieldAttributes.Public);
 440
 441                         type.CreateType ();
 442
 443                         var resolved_field = (FieldInfo) module.ResolveMember (0x04000001, new [] { typeof (string) }, Type.EmptyTypes);
 444                         Assert.IsNotNull (resolved_field);
 445                         Assert.AreEqual ("field", resolved_field.Name);
 446                         Assert.IsTrue (resolved_field.FieldType.IsGenericParameter);
 447                 }
 448
 449                 [Test]
 450                 public void ResolveTypeDefWithGenericArguments ()
 451                 {
 452                         var assembly = genAssembly ();
 453                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 454
 455                         var type = module.DefineType ("Foo`1");
 456                         var t = type.DefineGenericParameters ("T") [0];
 457
 458                         type.CreateType ();
 459
 460                         var foo = (Type) module.ResolveMember (0x02000002, new [] { typeof (string) }, Type.EmptyTypes);
 461                         Assert.IsNotNull (foo);
 462                         Assert.AreEqual ("Foo`1", foo.Name);
 463                         Assert.IsTrue (foo.IsGenericTypeDefinition);
 464                 }
 465
 466                 [Test]
 467                 public void ResolveFieldMemberRefWithGenericArguments ()
 468                 {
 469                         var assembly = genAssembly ();
 470                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 471
 472                         var type = module.DefineType ("Foo`1");
 473                         var t = type.DefineGenericParameters ("T") [0];
 474
 475                         var field = type.DefineField ("field", t, FieldAttributes.Public);
 476
 477                         var method = type.DefineMethod ("Method", MethodAttributes.Public, typeof (void), Type.EmptyTypes);
 478                         var il = method.GetILGenerator ();
 479
 480                         il.Emit (OpCodes.Ldarg_0);
 481                         il.Emit (OpCodes.Ldfld, field); // this triggers the creation of a MemberRef on a generic TypeSpec
 482                         il.Emit (OpCodes.Pop);
 483                         il.Emit (OpCodes.Ret);
 484
 485                         type.CreateType ();
 486
 487                         var resolved_field = (FieldInfo) module.ResolveMember (0x0a000001, new [] { typeof (string) }, null);
 488                         Assert.IsNotNull (resolved_field);
 489                         Assert.AreEqual ("field", resolved_field.Name);
 490                         Assert.AreEqual (typeof (string), resolved_field.FieldType);
 491                 }
 492
 493                 [Test]
 494                 public void ResolveMethodMemberRefWithGenericArguments ()
 495                 {
 496                         var assembly = genAssembly ();
 497                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 498
 499                         var type = module.DefineType ("Foo`1");
 500                         var t = type.DefineGenericParameters ("T") [0];
 501
 502                         var field = type.DefineField ("field", t, FieldAttributes.Public);
 503
 504                         var method = type.DefineMethod ("Method", MethodAttributes.Public, typeof (void), new Type [] { t });
 505                         method.GetILGenerator ().Emit (OpCodes.Ret);
 506
 507                         var ctor = type.DefineMethod ("Caller", MethodAttributes.Public, typeof (void), Type.EmptyTypes);
 508                         var il = ctor.GetILGenerator ();
 509
 510                         il.Emit (OpCodes.Ldarg_0);
 511                         il.Emit (OpCodes.Ldarg_0);
 512                         il.Emit (OpCodes.Ldfld, field); // this triggers the creation of a MemberRef on a generic TypeSpec
 513                         il.Emit (OpCodes.Callvirt, method); // this too
 514                         il.Emit (OpCodes.Ret);
 515
 516                         type.DefineDefaultConstructor (MethodAttributes.Public);
 517
 518                         type.CreateType ();
 519
 520                         var resolved_method = (MethodInfo) module.ResolveMember (0x0a000002, new [] { typeof (string) }, null);
 521                         Assert.IsNotNull (resolved_method);
 522                         Assert.AreEqual ("Method", resolved_method.Name);
 523                         Assert.AreEqual (typeof (string), resolved_method.GetParameters () [0].ParameterType);
 524                 }
 525
 526                 [Test]
 527                 public void ResolveMethodSpecWithGenericArguments ()
 528                 {
 529                         var assembly = genAssembly ();
 530                         var module = assembly.DefineDynamicModule ("foo.dll", "foo.dll");
 531
 532                         var type = module.DefineType ("Foo`1");
 533                         var t = type.DefineGenericParameters ("T") [0];
 534
 535                         var field = type.DefineField ("field", t, FieldAttributes.Public);
 536
 537                         var method = type.DefineMethod ("Method", MethodAttributes.Public);
 538                         var s = method.DefineGenericParameters ("S") [0];
 539                         method.SetReturnType (typeof (void));
 540                         method.SetParameters (t, s);
 541                         method.GetILGenerator ().Emit (OpCodes.Ret);
 542
 543                         var ctor = type.DefineMethod ("Caller", MethodAttributes.Public, typeof (void), Type.EmptyTypes);
 544                         var il = ctor.GetILGenerator ();
 545
 546                         il.Emit (OpCodes.Ldarg_0);
 547                         il.Emit (OpCodes.Ldarg_0);
 548                         il.Emit (OpCodes.Ldfld, field); // this triggers the creation of a MemberRef on a generic TypeSpec
 549                         il.Emit (OpCodes.Ldarg_0);
 550                         il.Emit (OpCodes.Ldfld, field); // this triggers the creation of a MemberRef on a generic TypeSpec
 551                         il.Emit (OpCodes.Callvirt, method); // this triggers the creation of a MethodSpec
 552                         il.Emit (OpCodes.Ret);
 553
 554                         type.DefineDefaultConstructor (MethodAttributes.Public);
 555
 556                         type.CreateType ();
 557
 558                         var resolved_method = (MethodInfo) module.ResolveMember (0x2b000001, new [] { typeof (string) }, new [] { typeof (int) });
 559                         Assert.IsNotNull (resolved_method);
 560                         Assert.AreEqual ("Method", resolved_method.Name);
 561                         Assert.AreEqual (typeof (string), resolved_method.GetParameters () [0].ParameterType);
 562                         Assert.AreEqual (typeof (int), resolved_method.GetParameters () [1].ParameterType);
 563                 }
 564
 565                 [Test]
 566                 public void GetTypes ()
 567                 {
 568                         AssemblyBuilder ab = genAssembly ();
 569                         ModuleBuilder mb = ab.DefineDynamicModule ("foo.dll", "foo.dll");
 570
 571                         TypeBuilder tb1 = mb.DefineType("Foo", TypeAttributes.Public);
 572
 573                         Type[] types = mb.GetTypes ();
 574                         Assert.AreEqual (1, types.Length);
 575                         Assert.AreEqual (tb1, types [0]);
 576
 577                         // After the type is created, MS seems to return the created type
 578                         tb1.CreateType ();
 579
 580                         types = mb.GetTypes ();
 581                         Assert.AreEqual (tb1.CreateType (), types [0]);
 582                 }
 583
 584                 [Test] // GetTypeToken (Type)
 585                 [Category ("NotDotNet")] // http://support.microsoft.com/kb/950986
 586                 public void GetTypeToken2_Type_Array ()
 587                 {
 588                         Type type;
 589                         TypeToken typeToken;
 590                         Type resolved_type;
 591
 592                         AssemblyName aname = genAssemblyName ();
 593                         AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly (
 594                                 aname, AssemblyBuilderAccess.RunAndSave);
 595                         ModuleBuilder mb = ab.DefineDynamicModule ("MyModule");
 596
 597                         type = typeof (object []);
 598                         typeToken = mb.GetTypeToken (type);
 599                         Assert.IsFalse (typeToken == TypeToken.Empty, "#A1");
 600                         resolved_type = mb.ResolveType (typeToken.Token);
 601                         Assert.AreEqual (type, resolved_type, "#A2");
 602
 603                         type = typeof (object).MakeArrayType ();
 604                         typeToken = mb.GetTypeToken (type);
 605                         Assert.IsFalse (typeToken == TypeToken.Empty, "#B1");
 606                         resolved_type = mb.ResolveType (typeToken.Token);
 607                         Assert.AreEqual (type, resolved_type, "#B2");
 608                 }
 609
 610                 [Test] // GetTypeToken (Type)
 611                 public void GetTypeToken2_Type_String ()
 612                 {
 613                         AssemblyName aname = genAssemblyName ();
 614                         AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly (
 615                                 aname, AssemblyBuilderAccess.RunAndSave);
 616                         ModuleBuilder mb = ab.DefineDynamicModule ("MyModule");
 617                         Type type = typeof (string);
 618                         TypeToken typeToken = mb.GetTypeToken (type);
 619                         Assert.IsFalse (typeToken == TypeToken.Empty, "#1");
 620                         Type resolved_type = mb.ResolveType (typeToken.Token);
 621                         Assert.AreEqual (type, resolved_type, "#2");
 622                 }
 623
 624                 [Test] // bug #471302
 625                 public void ModuleBuilder_ModuleVersionId ()
 626                 {
 627                         var name = new AssemblyName () { Name = "Foo" };
 628                         var assembly = AppDomain.CurrentDomain.DefineDynamicAssembly (
 629                                 name, AssemblyBuilderAccess.Run);
 630
 631                         var module = assembly.DefineDynamicModule ("Foo");
 632
 633                         Assert.AreNotEqual (new Guid (), module.ModuleVersionId);
 634                 }
 635
 636                 [Test]
 637                 public void GetType_String_Null ()
 638                 {
 639                         AssemblyName an = genAssemblyName ();
 640                         AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly (an, AssemblyBuilderAccess.Run);
 641                         ModuleBuilder module = ab.DefineDynamicModule ("GetTypeNullCheck");
 642
 643                         try {
 644                                 module.GetType (null);
 645                                 Assert.Fail ("Expected ArgumentNullException for GetType(string)");
 646                         }
 647                         catch (ArgumentNullException) {
 648                         }
 649                         try {
 650                                 module.GetType (null, true); // ignoreCase
 651                                 Assert.Fail ("Expected ArgumentNullException for GetType(string,bool)");
 652                         }
 653                         catch (ArgumentNullException) {
 654                         }
 655                         try {
 656                                 module.GetType (null, true, true); // throwOnError, ignoreCase
 657                                 Assert.Fail ("Expected ArgumentNullException for GetType(string,bool,bool)");
 658                         }
 659                         catch (ArgumentNullException) {
 660                         }
 661                 }
 662
 663                 [Test]
 664                 public void GetType_String_Empty ()
 665                 {
 666                         AssemblyName an = genAssemblyName ();
 667                         AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly (an, AssemblyBuilderAccess.Run);
 668                         ModuleBuilder module = ab.DefineDynamicModule ("GetTypeEmptyCheck");
 669
 670                         try {
 671                                 module.GetType (String.Empty);
 672                                 Assert.Fail ("Expected ArgumentNullException for GetType(string)");
 673                         }
 674                         catch (ArgumentException) {
 675                         }
 676                         try {
 677                                 module.GetType (String.Empty, true); // ignoreCase
 678                                 Assert.Fail ("Expected ArgumentNullException for GetType(string,bool)");
 679                         }
 680                         catch (ArgumentException) {
 681                         }
 682                         try {
 683                                 module.GetType (String.Empty, true, true); // throwOnError, ignoreCase
 684                                 Assert.Fail ("Expected ArgumentNullException for GetType(string,bool,bool)");
 685                         }
 686                         catch (ArgumentException) {
 687                         }
 688                 }
 689         }
 690 }