mcs/mcs/ikvm.cs

   1 //
   2 // ikvm.cs: IKVM.Reflection and IKVM.Reflection.Emit specific implementations
   3 //
   4 // Author: Marek Safar (marek.safar@gmail.com)
   5 //
   6 // Dual licensed under the terms of the MIT X11 or GNU GPL
   7 //
   8 // Copyright 2009-2010 Novell, Inc.
   9 //
  10 //
  11
  12 using System;
  13 using System.Collections.Generic;
  14 using MetaType = IKVM.Reflection.Type;
  15 using IKVM.Reflection;
  16 using IKVM.Reflection.Emit;
  17 using System.IO;
  18 using System.Configuration.Assemblies;
  19
  20 namespace Mono.CSharp
  21 {
  22 #if !STATIC
  23         public class StaticImporter
  24         {
  25                 public StaticImporter (BuildinTypes buildin)
  26                 {
  27                         throw new NotSupportedException ();
  28                 }
  29
  30                 public void ImportAssembly (Assembly assembly, RootNamespace targetNamespace)
  31                 {
  32                         throw new NotSupportedException ();
  33                 }
  34
  35                 public void ImportModule (Module module, RootNamespace targetNamespace)
  36                 {
  37                         throw new NotSupportedException ();
  38                 }
  39
  40                 public TypeSpec ImportType (System.Type type)
  41                 {
  42                         throw new NotSupportedException ();
  43                 }
  44         }
  45
  46 #else
  47
  48         sealed class StaticImporter : MetadataImporter
  49         {
  50                 public StaticImporter ()
  51                 {
  52                 }
  53
  54                 protected override MemberKind DetermineKindFromBaseType (MetaType baseType)
  55                 {
  56                         string name = baseType.Name;
  57
  58                         if (name == "ValueType" && baseType.Namespace == "System")
  59                                 return MemberKind.Struct;
  60
  61                         if (name == "Enum" && baseType.Namespace == "System")
  62                                 return MemberKind.Enum;
  63
  64                         if (name == "MulticastDelegate" && baseType.Namespace == "System")
  65                                 return MemberKind.Delegate;
  66
  67                         return MemberKind.Class;
  68                 }
  69
  70                 protected override bool HasVolatileModifier (MetaType[] modifiers)
  71                 {
  72                         foreach (var t in modifiers) {
  73                                 if (t.Name == "IsVolatile" && t.Namespace == CompilerServicesNamespace)
  74                                         return true;
  75                         }
  76
  77                         return false;
  78                 }
  79
  80                 public override void GetCustomAttributeTypeName (CustomAttributeData cad, out string typeNamespace, out string typeName)
  81                 {
  82                         cad.__TryReadTypeName (out typeNamespace, out typeName);
  83                 }
  84
  85                 public void ImportAssembly (Assembly assembly, RootNamespace targetNamespace)
  86                 {
  87                         // It can be used more than once when importing same assembly
  88                         // into 2 or more global aliases
  89                         var definition = GetAssemblyDefinition (assembly);
  90
  91                         var all_types = assembly.GetTypes ();
  92                         ImportTypes (all_types, targetNamespace, definition.HasExtensionMethod);
  93                 }
  94
  95                 public ImportedModuleDefinition ImportModule (Module module, RootNamespace targetNamespace)
  96                 {
  97                         var module_definition = new ImportedModuleDefinition (module, this);
  98                         module_definition.ReadAttributes ();
  99
 100                         var all_types = module.GetTypes ();
 101                         ImportTypes (all_types, targetNamespace, false);
 102
 103                         return module_definition;
 104                 }
 105
 106                 public void InitializeBuildinTypes (BuildinTypes buildin, Assembly corlib)
 107                 {
 108                         //
 109                         // Setup mapping for build-in types to avoid duplication of their definition
 110                         //
 111                         foreach (var type in buildin.AllTypes) {
 112                                 buildin_types.Add (corlib.GetType (type.FullName), type);
 113                         }
 114                 }
 115         }
 116 #endif
 117
 118         class AssemblyDefinitionStatic : AssemblyDefinition
 119         {
 120                 //
 121                 // Assembly container with file output
 122                 //
 123                 public AssemblyDefinitionStatic (ModuleContainer module, string name, string fileName)
 124                         : base (module, name, fileName)
 125                 {
 126                 }
 127
 128                 //
 129                 // Initializes the code generator
 130                 //
 131                 public bool Create (StaticLoader loader)
 132                 {
 133                         ResolveAssemblySecurityAttributes ();
 134                         var an = CreateAssemblyName ();
 135
 136                         Builder = loader.Domain.DefineDynamicAssembly (an, AssemblyBuilderAccess.Save, Path.GetDirectoryName (file_name));
 137
 138                         if (loader.Corlib != null) {
 139                                 Builder.__SetImageRuntimeVersion (loader.Corlib.ImageRuntimeVersion, 0x20000);
 140                         } else {
 141                                 // Sets output file metadata version when there is no mscorlib
 142                                 switch (RootContext.StdLibRuntimeVersion) {
 143                                 case RuntimeVersion.v4:
 144                                         Builder.__SetImageRuntimeVersion ("v4.0.30319", 0x20000);
 145                                         break;
 146                                 case RuntimeVersion.v2:
 147                                         Builder.__SetImageRuntimeVersion ("v2.0.50727", 0x20000);
 148                                         break;
 149                                 case RuntimeVersion.v1:
 150                                         // Compiler does not do any checks whether the produced metadata
 151                                         // are valid in the context of 1.0 stream version
 152                                         Builder.__SetImageRuntimeVersion ("v1.1.4322", 0x10000);
 153                                         break;
 154                                 default:
 155                                         throw new NotImplementedException ();
 156                                 }
 157                         }
 158
 159                         builder_extra = new AssemblyBuilderIKVM (Builder, Compiler);
 160                         return true;
 161                 }
 162
 163                 public Module IncludeModule (RawModule moduleFile)
 164                 {
 165                         return Builder.__AddModule (moduleFile);
 166                 }
 167
 168                 protected override void SaveModule (PortableExecutableKinds pekind, ImageFileMachine machine)
 169                 {
 170                         module.Builder.__Save (pekind, machine);
 171                 }
 172         }
 173
 174         class StaticLoader : AssemblyReferencesLoader<Assembly>, IDisposable
 175         {
 176                 readonly StaticImporter importer;
 177                 readonly Universe domain;
 178                 Assembly corlib;
 179                 List<Tuple<AssemblyName, string>> loaded_names;
 180                 static readonly Dictionary<SdkVersion, string[]> sdk_directory;
 181
 182                 static StaticLoader ()
 183                 {
 184                         sdk_directory = new Dictionary<SdkVersion, string[]> ();
 185                         sdk_directory.Add (SdkVersion.v2, new string[] { "2.0", "net_2_0", "v2.0.50727" });
 186                         sdk_directory.Add (SdkVersion.v4, new string[] { "4.0", "net_4_0", "v4.0.30319" });
 187                 }
 188
 189                 public StaticLoader (StaticImporter importer, CompilerContext compiler)
 190                         : base (compiler)
 191                 {
 192                         this.importer = importer;
 193                         domain = new Universe ();
 194                         domain.AssemblyResolve += AssemblyReferenceResolver;
 195                         loaded_names = new List<Tuple<AssemblyName, string>> ();
 196
 197                         var corlib_path = Path.GetDirectoryName (typeof (object).Assembly.Location);
 198                         string fx_path = corlib_path.Substring (0, corlib_path.LastIndexOf (Path.DirectorySeparatorChar));
 199                         string sdk_path = null;
 200
 201                         foreach (var dir in sdk_directory[RootContext.SdkVersion]) {
 202                                 sdk_path = Path.Combine (fx_path, dir);
 203                                 if (Directory.Exists (sdk_path))
 204                                         break;
 205
 206                                 sdk_path = null;
 207                         }
 208
 209                         if (sdk_path == null) {
 210                                 compiler.Report.Warning (-1, 1, "SDK path could not be resolved");
 211                                 sdk_path = corlib_path;
 212                         }
 213
 214                         paths.Add (sdk_path);
 215                 }
 216
 217                 public Assembly Corlib {
 218                         get {
 219                                 return corlib;
 220                         }
 221                         set {
 222                                 corlib = value;
 223                         }
 224                 }
 225
 226                 public Universe Domain {
 227                         get {
 228                                 return domain;
 229                         }
 230                 }
 231
 232                 Assembly AssemblyReferenceResolver (object sender, IKVM.Reflection.ResolveEventArgs args)
 233                 {
 234                         var refname = args.Name;
 235                         if (refname == "mscorlib")
 236                                 return corlib;
 237
 238                         Assembly version_mismatch = null;
 239                         foreach (var assembly in domain.GetAssemblies ()) {
 240                                 // TODO: Cannot handle unification into current assembly yet
 241                                 if (assembly is AssemblyBuilder)
 242                                         continue;
 243
 244                                 AssemblyComparisonResult result;
 245                                 if (!Fusion.CompareAssemblyIdentityPure (refname, false, assembly.FullName, false, out result)) {
 246                                         if ((result == AssemblyComparisonResult.NonEquivalentVersion || result == AssemblyComparisonResult.NonEquivalentPartialVersion) &&
 247                                                 (version_mismatch == null || version_mismatch.GetName ().Version < assembly.GetName ().Version)) {
 248                                                 version_mismatch = assembly;
 249                                         }
 250
 251                                         continue;
 252                                 }
 253
 254                                 if (result == AssemblyComparisonResult.EquivalentFXUnified ||
 255                                         result == AssemblyComparisonResult.EquivalentFullMatch ||
 256                                         result == AssemblyComparisonResult.EquivalentWeakNamed ||
 257                                         result == AssemblyComparisonResult.EquivalentPartialMatch) {
 258                                         return assembly;
 259                                 }
 260
 261                                 throw new NotImplementedException ("Assembly equality = " + result.ToString ());
 262                         }
 263
 264                         if (version_mismatch != null) {
 265                                 var v1 = new AssemblyName (refname).Version;
 266                                 var v2 = version_mismatch.GetName ().Version;
 267
 268                                 if (v1 > v2) {
 269 //                                      compiler.Report.SymbolRelatedToPreviousError (args.RequestingAssembly.Location);
 270                                         compiler.Report.Error (1705, "Assembly `{0}' references `{1}' which has higher version number than imported assembly `{2}'",
 271                                                 args.RequestingAssembly.FullName, refname, version_mismatch.GetName ().FullName);
 272                                 } else if (v1.Major != v2.Major || v1.Minor != v2.Minor) {
 273                                         compiler.Report.Warning (1701, 2,
 274                                                 "Assuming assembly reference `{0}' matches assembly `{1}'. You may need to supply runtime policy",
 275                                                 refname, version_mismatch.GetName ().FullName);
 276                                 } else {
 277                                         compiler.Report.Warning (1702, 3,
 278                                                 "Assuming assembly reference `{0}' matches assembly `{1}'. You may need to supply runtime policy",
 279                                                 refname, version_mismatch.GetName ().FullName);
 280                                 }
 281
 282                                 return version_mismatch;
 283                         }
 284
 285                         // AssemblyReference has not been found in the domain
 286                         // create missing reference and continue
 287                         return domain.CreateMissingAssembly (args.Name);
 288                 }
 289
 290                 public void Dispose ()
 291                 {
 292                         domain.Dispose ();
 293                 }
 294
 295                 protected override string[] GetDefaultReferences ()
 296                 {
 297                         //
 298                         // For now the "default config" is harcoded into the compiler
 299                         // we can move this outside later
 300                         //
 301                         var default_references = new List<string> (4);
 302
 303                         default_references.Add ("System.dll");
 304                         default_references.Add ("System.Xml.dll");
 305
 306                         if (RootContext.Version > LanguageVersion.ISO_2)
 307                                 default_references.Add ("System.Core.dll");
 308                         if (RootContext.Version > LanguageVersion.V_3)
 309                                 default_references.Add ("Microsoft.CSharp.dll");
 310
 311                         return default_references.ToArray ();
 312                 }
 313
 314                 public override bool HasObjectType (Assembly assembly)
 315                 {
 316                         return assembly.GetType (compiler.BuildinTypes.Object.FullName) != null;
 317                 }
 318
 319                 public override Assembly LoadAssemblyFile (string fileName)
 320                 {
 321                         bool? has_extension = null;
 322                         foreach (var path in paths) {
 323                                 var file = Path.Combine (path, fileName);
 324                                 if (!File.Exists (file)) {
 325                                         if (!has_extension.HasValue)
 326                                                 has_extension = fileName.EndsWith (".dll", StringComparison.Ordinal) || fileName.EndsWith (".exe", StringComparison.Ordinal);
 327
 328                                         if (has_extension.Value)
 329                                                 continue;
 330
 331                                         file += ".dll";
 332                                         if (!File.Exists (file))
 333                                                 continue;
 334                                 }
 335
 336                                 try {
 337                                         using (RawModule module = domain.OpenRawModule (file)) {
 338                                                 if (!module.IsManifestModule) {
 339                                                         Error_AssemblyIsModule (fileName);
 340                                                         return null;
 341                                                 }
 342
 343                                                 //
 344                                                 // check whether the assembly can be actually imported without
 345                                                 // collision
 346                                                 //
 347                                                 var an = module.GetAssemblyName ();
 348                                                 foreach (var entry in loaded_names) {
 349                                                         var loaded_name = entry.Item1;
 350                                                         if (an.Name != loaded_name.Name)
 351                                                                 continue;
 352
 353                                                         if (an.CodeBase == loaded_name.CodeBase)
 354                                                                 return null;
 355
 356                                                         if (((an.Flags | loaded_name.Flags) & AssemblyNameFlags.PublicKey) == 0) {
 357                                                                 compiler.Report.SymbolRelatedToPreviousError (entry.Item2);
 358                                                                 compiler.Report.SymbolRelatedToPreviousError (fileName);
 359                                                                 compiler.Report.Error (1704,
 360                                                                         "An assembly with the same name `{0}' has already been imported. Consider removing one of the references or sign the assembly",
 361                                                                         an.Name);
 362                                                                 return null;
 363                                                         }
 364
 365                                                         if ((an.Flags & AssemblyNameFlags.PublicKey) == (loaded_name.Flags & AssemblyNameFlags.PublicKey) && an.Version.Equals (loaded_name.Version)) {
 366                                                                 compiler.Report.SymbolRelatedToPreviousError (entry.Item2);
 367                                                                 compiler.Report.SymbolRelatedToPreviousError (fileName);
 368                                                                 compiler.Report.Error (1703,
 369                                                                         "An assembly with the same identity `{0}' has already been imported. Consider removing one of the references",
 370                                                                         an.FullName);
 371                                                                 return null;
 372                                                         }
 373                                                 }
 374
 375                                                 if (Report.DebugFlags > 0)
 376                                                         Console.WriteLine ("Loading assembly `{0}'", fileName);
 377
 378                                                 loaded_names.Add (Tuple.Create (an, fileName));
 379                                                 return domain.LoadAssembly (module);
 380                                         }
 381                                 } catch {
 382                                         Error_FileCorrupted (file);
 383                                         return null;
 384                                 }
 385                         }
 386
 387                         Error_FileNotFound (fileName);
 388                         return null;
 389                 }
 390
 391                 public RawModule LoadModuleFile (string moduleName)
 392                 {
 393                         foreach (var path in paths) {
 394                                 var file = Path.Combine (path, moduleName);
 395                                 if (!File.Exists (file)) {
 396                                         if (moduleName.EndsWith (".netmodule", StringComparison.Ordinal))
 397                                                 continue;
 398
 399                                         file += ".netmodule";
 400                                         if (!File.Exists (file))
 401                                                 continue;
 402                                 }
 403
 404                                 try {
 405                                         return domain.OpenRawModule (file);
 406                                 } catch {
 407                                         Error_FileCorrupted (file);
 408                                         return null;
 409                                 }
 410                         }
 411
 412                         Error_FileNotFound (moduleName);
 413                         return null;
 414                 }
 415
 416                 //
 417                 // Optimized default assembly loader version
 418                 //
 419                 public override Assembly LoadAssemblyDefault (string assembly)
 420                 {
 421                         foreach (var path in paths) {
 422                                 var file = Path.Combine (path, assembly);
 423                                 if (!File.Exists (file))
 424                                         continue;
 425
 426                                 try {
 427                                         if (Report.DebugFlags > 0)
 428                                                 Console.WriteLine ("Loading default assembly `{0}'", file);
 429
 430                                         var a = domain.LoadFile (file);
 431                                         if (a != null) {
 432                                                 loaded_names.Add (Tuple.Create (a.GetName (), file));
 433                                         }
 434
 435                                         return a;
 436                                 } catch {
 437                                         // Default assemblies can fail to load without error
 438                                         return null;
 439                                 }
 440                         }
 441
 442                         return null;
 443                 }
 444
 445                 public override void LoadReferences (ModuleContainer module)
 446                 {
 447                         List<Tuple<RootNamespace, Assembly>> loaded;
 448                         base.LoadReferencesCore (module, out corlib, out loaded);
 449
 450                         if (corlib != null) {
 451                                 importer.InitializeBuildinTypes (compiler.BuildinTypes, corlib);
 452                                 importer.ImportAssembly (corlib, module.GlobalRootNamespace);
 453                         }
 454
 455                         foreach (var entry in loaded) {
 456                                 importer.ImportAssembly (entry.Item2, entry.Item1);
 457                         }
 458                 }
 459
 460                 public void LoadModules (AssemblyDefinitionStatic assembly, RootNamespace targetNamespace)
 461                 {
 462                         if (RootContext.Modules.Count == 0)
 463                                 return;
 464
 465                         foreach (var moduleName in RootContext.Modules) {
 466                                 var m = LoadModuleFile (moduleName);
 467                                 if (m == null)
 468                                         continue;
 469
 470                                 if (m.IsManifestModule) {
 471                                         Error_FileCorrupted (moduleName);
 472                                         continue;
 473                                 }
 474
 475                                 var md = importer.ImportModule (assembly.IncludeModule (m), targetNamespace);
 476                                 assembly.AddModule (md);
 477                         }
 478                 }
 479         }
 480
 481         class AssemblyBuilderIKVM : AssemblyBuilderExtension
 482         {
 483                 readonly AssemblyBuilder builder;
 484
 485                 public AssemblyBuilderIKVM (AssemblyBuilder builder, CompilerContext ctx)
 486                         : base (ctx)
 487                 {
 488                         this.builder = builder;
 489                 }
 490
 491                 public override void AddTypeForwarder (TypeSpec type, Location loc)
 492                 {
 493                         builder.__AddTypeForwarder (type.GetMetaInfo ());
 494                 }
 495
 496                 public override void DefineWin32IconResource (string fileName)
 497                 {
 498                         builder.__DefineIconResource (File.ReadAllBytes (fileName));
 499                 }
 500
 501                 public override void SetAlgorithmId (uint value, Location loc)
 502                 {
 503                         builder.__SetAssemblyAlgorithmId ((AssemblyHashAlgorithm) value);
 504                 }
 505
 506                 public override void SetCulture (string culture, Location loc)
 507                 {
 508                         builder.__SetAssemblyCulture (culture);
 509                 }
 510
 511                 public override void SetFlags (uint flags, Location loc)
 512                 {
 513                         builder.__SetAssemblyFlags ((AssemblyNameFlags) flags);
 514                 }
 515
 516                 public override void SetVersion (Version version, Location loc)
 517                 {
 518                         builder.__SetAssemblyVersion (version);
 519                 }
 520         }
 521 }