lldb/unittests/SymbolFile/PDB/SymbolFilePDBTests.cpp

   1 //===-- PythonDataObjectsTests.cpp ----------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "gtest/gtest.h"
  10
  11 #include "llvm/ADT/STLExtras.h"
  12 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
  13 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
  14 #include "llvm/Support/FileSystem.h"
  15 #include "llvm/Support/Path.h"
  16 #include "llvm/Testing/Support/Error.h"
  17
  18 #include "Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.h"
  19 #include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h"
  20 #include "Plugins/SymbolFile/PDB/SymbolFilePDB.h"
  21 #include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
  22 #include "TestingSupport/TestUtilities.h"
  23 #include "lldb/Core/Address.h"
  24 #include "lldb/Core/Module.h"
  25 #include "lldb/Core/ModuleSpec.h"
  26 #include "lldb/Host/FileSystem.h"
  27 #include "lldb/Host/HostInfo.h"
  28 #include "lldb/Symbol/CompileUnit.h"
  29 #include "lldb/Symbol/LineTable.h"
  30 #include "lldb/Symbol/TypeMap.h"
  31 #include "lldb/Utility/ArchSpec.h"
  32 #include "lldb/Utility/FileSpec.h"
  33
  34 #if defined(_WIN32)
  35 #include "lldb/Host/windows/windows.h"
  36 #include <objbase.h>
  37 #endif
  38
  39 #include <algorithm>
  40
  41 using namespace lldb_private;
  42
  43 class SymbolFilePDBTests : public testing::Test {
  44 public:
  45   void SetUp() override {
  46 // Initialize and TearDown the plugin every time, so we get a brand new
  47 // AST every time so that modifications to the AST from each test don't
  48 // leak into the next test.
  49 #if defined(_WIN32)
  50     ::CoInitializeEx(nullptr, COINIT_MULTITHREADED);
  51 #endif
  52
  53     FileSystem::Initialize();
  54     HostInfo::Initialize();
  55     ObjectFilePECOFF::Initialize();
  56     SymbolFileDWARF::Initialize();
  57     TypeSystemClang::Initialize();
  58     SymbolFilePDB::Initialize();
  59
  60     m_pdb_test_exe = GetInputFilePath("test-pdb.exe");
  61     m_types_test_exe = GetInputFilePath("test-pdb-types.exe");
  62   }
  63
  64   void TearDown() override {
  65     SymbolFilePDB::Terminate();
  66     TypeSystemClang::Initialize();
  67     SymbolFileDWARF::Terminate();
  68     ObjectFilePECOFF::Terminate();
  69     HostInfo::Terminate();
  70     FileSystem::Terminate();
  71
  72 #if defined(_WIN32)
  73     ::CoUninitialize();
  74 #endif
  75   }
  76
  77 protected:
  78   std::string m_pdb_test_exe;
  79   std::string m_types_test_exe;
  80
  81   bool FileSpecMatchesAsBaseOrFull(const FileSpec &left,
  82                                    const FileSpec &right) const {
  83     // If the filenames don't match, the paths can't be equal
  84     if (!left.FileEquals(right))
  85       return false;
  86     // If BOTH have a directory, also compare the directories.
  87     if (left.GetDirectory() && right.GetDirectory())
  88       return left.DirectoryEquals(right);
  89
  90     // If one has a directory but not the other, they match.
  91     return true;
  92   }
  93
  94   void VerifyLineEntry(lldb::ModuleSP module, const SymbolContext &sc,
  95                        const FileSpec &spec, LineTable &lt, uint32_t line,
  96                        lldb::addr_t addr) {
  97     LineEntry entry;
  98     Address address;
  99     EXPECT_TRUE(module->ResolveFileAddress(addr, address));
 100
 101     EXPECT_TRUE(lt.FindLineEntryByAddress(address, entry));
 102     EXPECT_EQ(line, entry.line);
 103     EXPECT_EQ(address, entry.range.GetBaseAddress());
 104
 105     EXPECT_TRUE(FileSpecMatchesAsBaseOrFull(spec, entry.file));
 106   }
 107
 108   bool ContainsCompileUnit(const SymbolContextList &sc_list,
 109                            const FileSpec &spec) const {
 110     for (size_t i = 0; i < sc_list.GetSize(); ++i) {
 111       const SymbolContext &sc = sc_list[i];
 112       if (FileSpecMatchesAsBaseOrFull(sc.comp_unit->GetPrimaryFile(), spec))
 113         return true;
 114     }
 115     return false;
 116   }
 117
 118   uint64_t GetGlobalConstantInteger(llvm::pdb::IPDBSession &session,
 119                                     llvm::StringRef var) const {
 120     auto global = session.getGlobalScope();
 121     auto results =
 122         global->findChildren(llvm::pdb::PDB_SymType::Data, var,
 123                              llvm::pdb::PDB_NameSearchFlags::NS_Default);
 124     uint32_t count = results->getChildCount();
 125     if (count == 0)
 126       return -1;
 127
 128     auto item = results->getChildAtIndex(0);
 129     auto symbol = llvm::dyn_cast<llvm::pdb::PDBSymbolData>(item.get());
 130     if (!symbol)
 131       return -1;
 132     llvm::pdb::Variant value = symbol->getValue();
 133     switch (value.Type) {
 134     case llvm::pdb::PDB_VariantType::Int16:
 135       return value.Value.Int16;
 136     case llvm::pdb::PDB_VariantType::Int32:
 137       return value.Value.Int32;
 138     case llvm::pdb::PDB_VariantType::UInt16:
 139       return value.Value.UInt16;
 140     case llvm::pdb::PDB_VariantType::UInt32:
 141       return value.Value.UInt32;
 142     default:
 143       return 0;
 144     }
 145   }
 146 };
 147
 148 TEST_F(SymbolFilePDBTests, TestAbilitiesForPDB) {
 149   // Test that when we have PDB debug info, SymbolFilePDB is used.
 150   FileSpec fspec(m_pdb_test_exe);
 151   ArchSpec aspec("i686-pc-windows");
 152   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 153
 154   SymbolFile *symfile = module->GetSymbolFile();
 155   EXPECT_NE(nullptr, symfile);
 156   EXPECT_EQ(symfile->GetPluginName(), SymbolFilePDB::GetPluginNameStatic());
 157
 158   uint32_t expected_abilities = SymbolFile::kAllAbilities;
 159   EXPECT_EQ(expected_abilities, symfile->CalculateAbilities());
 160 }
 161
 162 TEST_F(SymbolFilePDBTests, TestResolveSymbolContextBasename) {
 163   // Test that attempting to call ResolveSymbolContext with only a basename
 164   // finds all full paths
 165   // with the same basename
 166   FileSpec fspec(m_pdb_test_exe);
 167   ArchSpec aspec("i686-pc-windows");
 168   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 169
 170   SymbolFile *symfile = module->GetSymbolFile();
 171
 172   FileSpec header_spec("test-pdb.cpp");
 173   SymbolContextList sc_list;
 174   SourceLocationSpec location_spec(header_spec, /*line=*/0);
 175   uint32_t result_count = symfile->ResolveSymbolContext(
 176       location_spec, lldb::eSymbolContextCompUnit, sc_list);
 177   EXPECT_EQ(1u, result_count);
 178   EXPECT_TRUE(ContainsCompileUnit(sc_list, header_spec));
 179 }
 180
 181 TEST_F(SymbolFilePDBTests, TestResolveSymbolContextFullPath) {
 182   // Test that attempting to call ResolveSymbolContext with a full path only
 183   // finds the one source
 184   // file that matches the full path.
 185   FileSpec fspec(m_pdb_test_exe);
 186   ArchSpec aspec("i686-pc-windows");
 187   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 188
 189   SymbolFile *symfile = module->GetSymbolFile();
 190
 191   FileSpec header_spec(
 192       R"spec(D:\src\llvm\tools\lldb\unittests\SymbolFile\PDB\Inputs\test-pdb.cpp)spec");
 193   SymbolContextList sc_list;
 194   SourceLocationSpec location_spec(header_spec, /*line=*/0);
 195   uint32_t result_count = symfile->ResolveSymbolContext(
 196       location_spec, lldb::eSymbolContextCompUnit, sc_list);
 197   EXPECT_GE(1u, result_count);
 198   EXPECT_TRUE(ContainsCompileUnit(sc_list, header_spec));
 199 }
 200
 201 TEST_F(SymbolFilePDBTests, TestLookupOfHeaderFileWithInlines) {
 202   // Test that when looking up a header file via ResolveSymbolContext (i.e. a
 203   // file that was not by itself
 204   // compiled, but only contributes to the combined code of other source files),
 205   // a SymbolContext is returned
 206   // for each compiland which has line contributions from the requested header.
 207   FileSpec fspec(m_pdb_test_exe);
 208   ArchSpec aspec("i686-pc-windows");
 209   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 210
 211   SymbolFile *symfile = module->GetSymbolFile();
 212
 213   FileSpec header_specs[] = {FileSpec("test-pdb.h"),
 214                              FileSpec("test-pdb-nested.h")};
 215   FileSpec main_cpp_spec("test-pdb.cpp");
 216   FileSpec alt_cpp_spec("test-pdb-alt.cpp");
 217   for (const auto &hspec : header_specs) {
 218     SymbolContextList sc_list;
 219     SourceLocationSpec location_spec(hspec, /*line=*/0, /*column=*/llvm::None,
 220                                      /*check_inlines=*/true);
 221     uint32_t result_count = symfile->ResolveSymbolContext(
 222         location_spec, lldb::eSymbolContextCompUnit, sc_list);
 223     EXPECT_EQ(2u, result_count);
 224     EXPECT_TRUE(ContainsCompileUnit(sc_list, main_cpp_spec));
 225     EXPECT_TRUE(ContainsCompileUnit(sc_list, alt_cpp_spec));
 226   }
 227 }
 228
 229 TEST_F(SymbolFilePDBTests, TestLookupOfHeaderFileWithNoInlines) {
 230   // Test that when looking up a header file via ResolveSymbolContext (i.e. a
 231   // file that was not by itself
 232   // compiled, but only contributes to the combined code of other source files),
 233   // that if check_inlines
 234   // is false, no SymbolContexts are returned.
 235   FileSpec fspec(m_pdb_test_exe);
 236   ArchSpec aspec("i686-pc-windows");
 237   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 238
 239   SymbolFile *symfile = module->GetSymbolFile();
 240
 241   FileSpec header_specs[] = {FileSpec("test-pdb.h"),
 242                              FileSpec("test-pdb-nested.h")};
 243   for (const auto &hspec : header_specs) {
 244     SymbolContextList sc_list;
 245     SourceLocationSpec location_spec(hspec, /*line=*/0);
 246     uint32_t result_count = symfile->ResolveSymbolContext(
 247         location_spec, lldb::eSymbolContextCompUnit, sc_list);
 248     EXPECT_EQ(0u, result_count);
 249   }
 250 }
 251
 252 TEST_F(SymbolFilePDBTests, TestLineTablesMatchAll) {
 253   // Test that when calling ResolveSymbolContext with a line number of 0, all
 254   // line entries from
 255   // the specified files are returned.
 256   FileSpec fspec(m_pdb_test_exe);
 257   ArchSpec aspec("i686-pc-windows");
 258   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 259
 260   SymbolFile *symfile = module->GetSymbolFile();
 261
 262   FileSpec source_file("test-pdb.cpp");
 263   FileSpec header1("test-pdb.h");
 264   FileSpec header2("test-pdb-nested.h");
 265   uint32_t cus = symfile->GetNumCompileUnits();
 266   EXPECT_EQ(2u, cus);
 267
 268   SymbolContextList sc_list;
 269   lldb::SymbolContextItem scope =
 270       lldb::eSymbolContextCompUnit | lldb::eSymbolContextLineEntry;
 271
 272   SourceLocationSpec location_spec(
 273       source_file, /*line=*/0, /*column=*/llvm::None, /*check_inlines=*/true);
 274   uint32_t count = symfile->ResolveSymbolContext(location_spec, scope, sc_list);
 275   EXPECT_EQ(1u, count);
 276   SymbolContext sc;
 277   EXPECT_TRUE(sc_list.GetContextAtIndex(0, sc));
 278
 279   LineTable *lt = sc.comp_unit->GetLineTable();
 280   EXPECT_NE(nullptr, lt);
 281   count = lt->GetSize();
 282   // We expect one extra entry for termination (per function)
 283   EXPECT_EQ(16u, count);
 284
 285   VerifyLineEntry(module, sc, source_file, *lt, 7, 0x401040);
 286   VerifyLineEntry(module, sc, source_file, *lt, 8, 0x401043);
 287   VerifyLineEntry(module, sc, source_file, *lt, 9, 0x401045);
 288
 289   VerifyLineEntry(module, sc, source_file, *lt, 13, 0x401050);
 290   VerifyLineEntry(module, sc, source_file, *lt, 14, 0x401054);
 291   VerifyLineEntry(module, sc, source_file, *lt, 15, 0x401070);
 292
 293   VerifyLineEntry(module, sc, header1, *lt, 9, 0x401090);
 294   VerifyLineEntry(module, sc, header1, *lt, 10, 0x401093);
 295   VerifyLineEntry(module, sc, header1, *lt, 11, 0x4010a2);
 296
 297   VerifyLineEntry(module, sc, header2, *lt, 5, 0x401080);
 298   VerifyLineEntry(module, sc, header2, *lt, 6, 0x401083);
 299   VerifyLineEntry(module, sc, header2, *lt, 7, 0x401089);
 300 }
 301
 302 TEST_F(SymbolFilePDBTests, TestLineTablesMatchSpecific) {
 303   // Test that when calling ResolveSymbolContext with a specific line number,
 304   // only line entries
 305   // which match the requested line are returned.
 306   FileSpec fspec(m_pdb_test_exe);
 307   ArchSpec aspec("i686-pc-windows");
 308   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 309
 310   SymbolFile *symfile = module->GetSymbolFile();
 311
 312   FileSpec source_file("test-pdb.cpp");
 313   FileSpec header1("test-pdb.h");
 314   FileSpec header2("test-pdb-nested.h");
 315   uint32_t cus = symfile->GetNumCompileUnits();
 316   EXPECT_EQ(2u, cus);
 317
 318   SymbolContextList sc_list;
 319   lldb::SymbolContextItem scope =
 320       lldb::eSymbolContextCompUnit | lldb::eSymbolContextLineEntry;
 321
 322   // First test with line 7, and verify that only line 7 entries are added.
 323   SourceLocationSpec location_spec(
 324       source_file, /*line=*/7, /*column=*/llvm::None, /*check_inlines=*/true);
 325   uint32_t count = symfile->ResolveSymbolContext(location_spec, scope, sc_list);
 326   EXPECT_EQ(1u, count);
 327   SymbolContext sc;
 328   EXPECT_TRUE(sc_list.GetContextAtIndex(0, sc));
 329
 330   LineTable *lt = sc.comp_unit->GetLineTable();
 331   EXPECT_NE(nullptr, lt);
 332   count = lt->GetSize();
 333   // We expect one extra entry for termination
 334   EXPECT_EQ(3u, count);
 335
 336   VerifyLineEntry(module, sc, source_file, *lt, 7, 0x401040);
 337   VerifyLineEntry(module, sc, header2, *lt, 7, 0x401089);
 338
 339   sc_list.Clear();
 340   // Then test with line 9, and verify that only line 9 entries are added.
 341   location_spec = SourceLocationSpec(
 342       source_file, /*line=*/9, /*column=*/llvm::None, /*check_inlines=*/true);
 343   count = symfile->ResolveSymbolContext(location_spec, scope, sc_list);
 344   EXPECT_EQ(1u, count);
 345   EXPECT_TRUE(sc_list.GetContextAtIndex(0, sc));
 346
 347   lt = sc.comp_unit->GetLineTable();
 348   EXPECT_NE(nullptr, lt);
 349   count = lt->GetSize();
 350   // We expect one extra entry for termination
 351   EXPECT_EQ(3u, count);
 352
 353   VerifyLineEntry(module, sc, source_file, *lt, 9, 0x401045);
 354   VerifyLineEntry(module, sc, header1, *lt, 9, 0x401090);
 355 }
 356
 357 TEST_F(SymbolFilePDBTests, TestSimpleClassTypes) {
 358   FileSpec fspec(m_types_test_exe);
 359   ArchSpec aspec("i686-pc-windows");
 360   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 361
 362   SymbolFilePDB *symfile =
 363       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 364   llvm::pdb::IPDBSession &session = symfile->GetPDBSession();
 365   llvm::DenseSet<SymbolFile *> searched_files;
 366   TypeMap results;
 367   symfile->FindTypes(ConstString("Class"), CompilerDeclContext(), 0,
 368                      searched_files, results);
 369   EXPECT_EQ(1u, results.GetSize());
 370   lldb::TypeSP udt_type = results.GetTypeAtIndex(0);
 371   EXPECT_EQ(ConstString("Class"), udt_type->GetName());
 372   CompilerType compiler_type = udt_type->GetForwardCompilerType();
 373   EXPECT_TRUE(TypeSystemClang::IsClassType(compiler_type.GetOpaqueQualType()));
 374   EXPECT_EQ(GetGlobalConstantInteger(session, "sizeof_Class"),
 375             udt_type->GetByteSize(nullptr));
 376 }
 377
 378 TEST_F(SymbolFilePDBTests, TestNestedClassTypes) {
 379   FileSpec fspec(m_types_test_exe);
 380   ArchSpec aspec("i686-pc-windows");
 381   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 382
 383   SymbolFilePDB *symfile =
 384       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 385   llvm::pdb::IPDBSession &session = symfile->GetPDBSession();
 386   llvm::DenseSet<SymbolFile *> searched_files;
 387   TypeMap results;
 388
 389   auto clang_ast_ctx_or_err =
 390       symfile->GetTypeSystemForLanguage(lldb::eLanguageTypeC_plus_plus);
 391   ASSERT_THAT_EXPECTED(clang_ast_ctx_or_err, llvm::Succeeded());
 392
 393   auto clang_ast_ctx =
 394       llvm::dyn_cast_or_null<TypeSystemClang>(&clang_ast_ctx_or_err.get());
 395   EXPECT_NE(nullptr, clang_ast_ctx);
 396
 397   symfile->FindTypes(ConstString("Class"), CompilerDeclContext(), 0,
 398                      searched_files, results);
 399   EXPECT_EQ(1u, results.GetSize());
 400
 401   auto Class = results.GetTypeAtIndex(0);
 402   EXPECT_TRUE(Class);
 403   EXPECT_TRUE(Class->IsValidType());
 404
 405   auto ClassCompilerType = Class->GetFullCompilerType();
 406   EXPECT_TRUE(ClassCompilerType.IsValid());
 407
 408   auto ClassDeclCtx = clang_ast_ctx->GetDeclContextForType(ClassCompilerType);
 409   EXPECT_NE(nullptr, ClassDeclCtx);
 410
 411   // There are two symbols for nested classes: one belonging to enclosing class
 412   // and one is global. We process correctly this case and create the same
 413   // compiler type for both, but `FindTypes` may return more than one type
 414   // (with the same compiler type) because the symbols have different IDs.
 415
 416   TypeMap more_results;
 417   auto ClassCompilerDeclCtx = CompilerDeclContext(clang_ast_ctx, ClassDeclCtx);
 418   symfile->FindTypes(ConstString("NestedClass"), ClassCompilerDeclCtx, 0,
 419                      searched_files, more_results);
 420   EXPECT_LE(1u, more_results.GetSize());
 421
 422   lldb::TypeSP udt_type = more_results.GetTypeAtIndex(0);
 423   EXPECT_EQ(ConstString("NestedClass"), udt_type->GetName());
 424
 425   CompilerType compiler_type = udt_type->GetForwardCompilerType();
 426   EXPECT_TRUE(TypeSystemClang::IsClassType(compiler_type.GetOpaqueQualType()));
 427
 428   EXPECT_EQ(GetGlobalConstantInteger(session, "sizeof_NestedClass"),
 429             udt_type->GetByteSize(nullptr));
 430 }
 431
 432 TEST_F(SymbolFilePDBTests, TestClassInNamespace) {
 433   FileSpec fspec(m_types_test_exe);
 434   ArchSpec aspec("i686-pc-windows");
 435   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 436
 437   SymbolFilePDB *symfile =
 438       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 439   llvm::pdb::IPDBSession &session = symfile->GetPDBSession();
 440   llvm::DenseSet<SymbolFile *> searched_files;
 441   TypeMap results;
 442
 443   auto clang_ast_ctx_or_err =
 444       symfile->GetTypeSystemForLanguage(lldb::eLanguageTypeC_plus_plus);
 445   ASSERT_THAT_EXPECTED(clang_ast_ctx_or_err, llvm::Succeeded());
 446
 447   auto clang_ast_ctx =
 448       llvm::dyn_cast_or_null<TypeSystemClang>(&clang_ast_ctx_or_err.get());
 449   EXPECT_NE(nullptr, clang_ast_ctx);
 450
 451   clang::ASTContext &ast_ctx = clang_ast_ctx->getASTContext();
 452
 453   auto tu = ast_ctx.getTranslationUnitDecl();
 454   EXPECT_NE(nullptr, tu);
 455
 456   symfile->ParseDeclsForContext(CompilerDeclContext(
 457       clang_ast_ctx, static_cast<clang::DeclContext *>(tu)));
 458
 459   auto ns_namespace = symfile->FindNamespace(ConstString("NS"), CompilerDeclContext());
 460   EXPECT_TRUE(ns_namespace.IsValid());
 461
 462   symfile->FindTypes(ConstString("NSClass"), ns_namespace, 0, searched_files,
 463                      results);
 464   EXPECT_EQ(1u, results.GetSize());
 465
 466   lldb::TypeSP udt_type = results.GetTypeAtIndex(0);
 467   EXPECT_EQ(ConstString("NSClass"), udt_type->GetName());
 468
 469   CompilerType compiler_type = udt_type->GetForwardCompilerType();
 470   EXPECT_TRUE(TypeSystemClang::IsClassType(compiler_type.GetOpaqueQualType()));
 471
 472   EXPECT_EQ(GetGlobalConstantInteger(session, "sizeof_NSClass"),
 473             udt_type->GetByteSize(nullptr));
 474 }
 475
 476 TEST_F(SymbolFilePDBTests, TestEnumTypes) {
 477   FileSpec fspec(m_types_test_exe);
 478   ArchSpec aspec("i686-pc-windows");
 479   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 480
 481   SymbolFilePDB *symfile =
 482       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 483   llvm::pdb::IPDBSession &session = symfile->GetPDBSession();
 484   llvm::DenseSet<SymbolFile *> searched_files;
 485   const char *EnumsToCheck[] = {"Enum", "ShortEnum"};
 486   for (auto Enum : EnumsToCheck) {
 487     TypeMap results;
 488     symfile->FindTypes(ConstString(Enum), CompilerDeclContext(), 0,
 489                        searched_files, results);
 490     EXPECT_EQ(1u, results.GetSize());
 491     lldb::TypeSP enum_type = results.GetTypeAtIndex(0);
 492     EXPECT_EQ(ConstString(Enum), enum_type->GetName());
 493     CompilerType compiler_type = enum_type->GetFullCompilerType();
 494     EXPECT_TRUE(TypeSystemClang::IsEnumType(compiler_type.GetOpaqueQualType()));
 495     clang::EnumDecl *enum_decl = TypeSystemClang::GetAsEnumDecl(compiler_type);
 496     EXPECT_NE(nullptr, enum_decl);
 497     EXPECT_EQ(2, std::distance(enum_decl->enumerator_begin(),
 498                                enum_decl->enumerator_end()));
 499
 500     std::string sizeof_var = "sizeof_";
 501     sizeof_var.append(Enum);
 502     EXPECT_EQ(GetGlobalConstantInteger(session, sizeof_var),
 503               enum_type->GetByteSize(nullptr));
 504   }
 505 }
 506
 507 TEST_F(SymbolFilePDBTests, TestArrayTypes) {
 508   // In order to get this test working, we need to support lookup by symbol
 509   // name.  Because array
 510   // types themselves do not have names, only the symbols have names (i.e. the
 511   // name of the array).
 512 }
 513
 514 TEST_F(SymbolFilePDBTests, TestFunctionTypes) {
 515   // In order to get this test working, we need to support lookup by symbol
 516   // name.  Because array
 517   // types themselves do not have names, only the symbols have names (i.e. the
 518   // name of the array).
 519 }
 520
 521 TEST_F(SymbolFilePDBTests, TestTypedefs) {
 522   FileSpec fspec(m_types_test_exe);
 523   ArchSpec aspec("i686-pc-windows");
 524   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 525
 526   SymbolFilePDB *symfile =
 527       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 528   llvm::pdb::IPDBSession &session = symfile->GetPDBSession();
 529   llvm::DenseSet<SymbolFile *> searched_files;
 530   TypeMap results;
 531
 532   const char *TypedefsToCheck[] = {"ClassTypedef", "NSClassTypedef",
 533                                    "FuncPointerTypedef",
 534                                    "VariadicFuncPointerTypedef"};
 535   for (auto Typedef : TypedefsToCheck) {
 536     TypeMap results;
 537     symfile->FindTypes(ConstString(Typedef), CompilerDeclContext(), 0,
 538                        searched_files, results);
 539     EXPECT_EQ(1u, results.GetSize());
 540     lldb::TypeSP typedef_type = results.GetTypeAtIndex(0);
 541     EXPECT_EQ(ConstString(Typedef), typedef_type->GetName());
 542     CompilerType compiler_type = typedef_type->GetFullCompilerType();
 543     TypeSystemClang *clang_type_system =
 544         llvm::dyn_cast_or_null<TypeSystemClang>(compiler_type.GetTypeSystem());
 545     EXPECT_TRUE(
 546         clang_type_system->IsTypedefType(compiler_type.GetOpaqueQualType()));
 547
 548     std::string sizeof_var = "sizeof_";
 549     sizeof_var.append(Typedef);
 550     EXPECT_EQ(GetGlobalConstantInteger(session, sizeof_var),
 551               typedef_type->GetByteSize(nullptr));
 552   }
 553 }
 554
 555 TEST_F(SymbolFilePDBTests, TestRegexNameMatch) {
 556   FileSpec fspec(m_types_test_exe);
 557   ArchSpec aspec("i686-pc-windows");
 558   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 559
 560   SymbolFilePDB *symfile =
 561       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 562   TypeMap results;
 563
 564   symfile->FindTypesByRegex(RegularExpression(".*"), 0, results);
 565   EXPECT_GT(results.GetSize(), 1u);
 566
 567   // We expect no exception thrown if the given regex can't be compiled
 568   results.Clear();
 569   symfile->FindTypesByRegex(RegularExpression("**"), 0, results);
 570   EXPECT_EQ(0u, results.GetSize());
 571 }
 572
 573 TEST_F(SymbolFilePDBTests, TestMaxMatches) {
 574   FileSpec fspec(m_types_test_exe);
 575   ArchSpec aspec("i686-pc-windows");
 576   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 577
 578   SymbolFilePDB *symfile =
 579       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 580   llvm::DenseSet<SymbolFile *> searched_files;
 581   TypeMap results;
 582   const ConstString name("ClassTypedef");
 583   symfile->FindTypes(name, CompilerDeclContext(), 0, searched_files, results);
 584   // Try to limit ourselves from 1 to 10 results, otherwise we could
 585   // be doing this thousands of times.  The idea is just to make sure
 586   // that for a variety of values, the number of limited results
 587   // always comes out to the number we are expecting.
 588   uint32_t num_results = results.GetSize();
 589   uint32_t iterations = std::min(num_results, 10u);
 590   for (uint32_t i = 1; i <= iterations; ++i) {
 591     TypeMap more_results;
 592     symfile->FindTypes(name, CompilerDeclContext(), i, searched_files,
 593                        more_results);
 594     uint32_t num_limited_results = more_results.GetSize();
 595     EXPECT_EQ(i, num_limited_results);
 596   }
 597 }
 598
 599 TEST_F(SymbolFilePDBTests, TestNullName) {
 600   FileSpec fspec(m_types_test_exe);
 601   ArchSpec aspec("i686-pc-windows");
 602   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 603
 604   SymbolFilePDB *symfile =
 605       static_cast<SymbolFilePDB *>(module->GetSymbolFile());
 606   llvm::DenseSet<SymbolFile *> searched_files;
 607   TypeMap results;
 608   symfile->FindTypes(ConstString(), CompilerDeclContext(), 0, searched_files,
 609                      results);
 610   EXPECT_EQ(0u, results.GetSize());
 611 }
 612
 613 TEST_F(SymbolFilePDBTests, TestFindSymbolsWithNameAndType) {
 614   FileSpec fspec(m_pdb_test_exe.c_str());
 615   ArchSpec aspec("i686-pc-windows");
 616   lldb::ModuleSP module = std::make_shared<Module>(fspec, aspec);
 617
 618   SymbolContextList sc_list;
 619   module->FindSymbolsWithNameAndType(ConstString("?foo@@YAHH@Z"),
 620                                      lldb::eSymbolTypeAny, sc_list);
 621   EXPECT_EQ(1u, sc_list.GetSize());
 622
 623   SymbolContext sc;
 624   EXPECT_TRUE(sc_list.GetContextAtIndex(0, sc));
 625   EXPECT_STREQ("int foo(int)",
 626                sc.GetFunctionName(Mangled::ePreferDemangled).AsCString());
 627 }