| //===-- DWARFASTParserClangTests.cpp --------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Plugins/SymbolFile/DWARF/DWARFASTParserClang.h" |
| #include "Plugins/SymbolFile/DWARF/DWARFCompileUnit.h" |
| #include "Plugins/SymbolFile/DWARF/DWARFDIE.h" |
| #include "TestingSupport/Symbol/ClangTestUtils.h" |
| #include "TestingSupport/Symbol/YAMLModuleTester.h" |
| #include "lldb/Core/Debugger.h" |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| using namespace lldb_private::dwarf; |
| using namespace lldb_private::plugin::dwarf; |
| |
| namespace { |
| static std::once_flag debugger_initialize_flag; |
| |
| class DWARFASTParserClangTests : public testing::Test { |
| void SetUp() override { |
| std::call_once(debugger_initialize_flag, |
| []() { Debugger::Initialize(nullptr); }); |
| } |
| }; |
| |
| class DWARFASTParserClangStub : public DWARFASTParserClang { |
| public: |
| using DWARFASTParserClang::DWARFASTParserClang; |
| using DWARFASTParserClang::LinkDeclContextToDIE; |
| |
| std::vector<const clang::DeclContext *> GetDeclContextToDIEMapKeys() { |
| std::vector<const clang::DeclContext *> keys; |
| for (const auto &it : m_decl_ctx_to_die) |
| keys.push_back(it.first); |
| return keys; |
| } |
| }; |
| } // namespace |
| |
| // If your implementation needs to dereference the dummy pointers we are |
| // defining here, causing this test to fail, feel free to delete it. |
| TEST_F(DWARFASTParserClangTests, |
| EnsureAllDIEsInDeclContextHaveBeenParsedParsesOnlyMatchingEntries) { |
| |
| /// Auxiliary debug info. |
| const char *yamldata = R"( |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_386 |
| DWARF: |
| debug_abbrev: |
| - Table: |
| - Code: 0x00000001 |
| Tag: DW_TAG_compile_unit |
| Children: DW_CHILDREN_yes |
| Attributes: |
| - Attribute: DW_AT_language |
| Form: DW_FORM_data2 |
| - Code: 0x00000002 |
| Tag: DW_TAG_base_type |
| Children: DW_CHILDREN_no |
| Attributes: |
| - Attribute: DW_AT_encoding |
| Form: DW_FORM_data1 |
| - Attribute: DW_AT_byte_size |
| Form: DW_FORM_data1 |
| debug_info: |
| - Version: 4 |
| AddrSize: 8 |
| Entries: |
| - AbbrCode: 0x00000001 |
| Values: |
| - Value: 0x000000000000000C |
| - AbbrCode: 0x00000002 |
| Values: |
| - Value: 0x0000000000000007 # DW_ATE_unsigned |
| - Value: 0x0000000000000004 |
| - AbbrCode: 0x00000002 |
| Values: |
| - Value: 0x0000000000000007 # DW_ATE_unsigned |
| - Value: 0x0000000000000008 |
| - AbbrCode: 0x00000002 |
| Values: |
| - Value: 0x0000000000000005 # DW_ATE_signed |
| - Value: 0x0000000000000008 |
| - AbbrCode: 0x00000002 |
| Values: |
| - Value: 0x0000000000000008 # DW_ATE_unsigned_char |
| - Value: 0x0000000000000001 |
| - AbbrCode: 0x00000000 |
| )"; |
| |
| YAMLModuleTester t(yamldata); |
| ASSERT_TRUE((bool)t.GetDwarfUnit()); |
| |
| auto holder = std::make_unique<clang_utils::TypeSystemClangHolder>("ast"); |
| auto &ast_ctx = *holder->GetAST(); |
| |
| DWARFASTParserClangStub ast_parser(ast_ctx); |
| |
| DWARFUnit *unit = t.GetDwarfUnit(); |
| const DWARFDebugInfoEntry *die_first = unit->DIE().GetDIE(); |
| const DWARFDebugInfoEntry *die_child0 = die_first->GetFirstChild(); |
| const DWARFDebugInfoEntry *die_child1 = die_child0->GetSibling(); |
| const DWARFDebugInfoEntry *die_child2 = die_child1->GetSibling(); |
| const DWARFDebugInfoEntry *die_child3 = die_child2->GetSibling(); |
| std::vector<DWARFDIE> dies = { |
| DWARFDIE(unit, die_child0), DWARFDIE(unit, die_child1), |
| DWARFDIE(unit, die_child2), DWARFDIE(unit, die_child3)}; |
| std::vector<clang::DeclContext *> decl_ctxs = { |
| (clang::DeclContext *)1LL, (clang::DeclContext *)2LL, |
| (clang::DeclContext *)2LL, (clang::DeclContext *)3LL}; |
| for (int i = 0; i < 4; ++i) |
| ast_parser.LinkDeclContextToDIE(decl_ctxs[i], dies[i]); |
| ast_parser.EnsureAllDIEsInDeclContextHaveBeenParsed( |
| CompilerDeclContext(nullptr, decl_ctxs[1])); |
| |
| EXPECT_THAT(ast_parser.GetDeclContextToDIEMapKeys(), |
| testing::UnorderedElementsAre(decl_ctxs[0], decl_ctxs[3])); |
| } |
| |
| TEST_F(DWARFASTParserClangTests, TestCallingConventionParsing) { |
| // Tests parsing DW_AT_calling_convention values. |
| |
| // The DWARF below just declares a list of function types with |
| // DW_AT_calling_convention on them. |
| const char *yamldata = R"( |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS32 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_386 |
| DWARF: |
| debug_str: |
| - func1 |
| - func2 |
| - func3 |
| - func4 |
| - func5 |
| - func6 |
| - func7 |
| - func8 |
| - func9 |
| debug_abbrev: |
| - ID: 0 |
| Table: |
| - Code: 0x1 |
| Tag: DW_TAG_compile_unit |
| Children: DW_CHILDREN_yes |
| Attributes: |
| - Attribute: DW_AT_language |
| Form: DW_FORM_data2 |
| - Code: 0x2 |
| Tag: DW_TAG_subprogram |
| Children: DW_CHILDREN_no |
| Attributes: |
| - Attribute: DW_AT_low_pc |
| Form: DW_FORM_addr |
| - Attribute: DW_AT_high_pc |
| Form: DW_FORM_data4 |
| - Attribute: DW_AT_name |
| Form: DW_FORM_strp |
| - Attribute: DW_AT_calling_convention |
| Form: DW_FORM_data1 |
| - Attribute: DW_AT_external |
| Form: DW_FORM_flag_present |
| debug_info: |
| - Version: 4 |
| AddrSize: 4 |
| Entries: |
| - AbbrCode: 0x1 |
| Values: |
| - Value: 0xC |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x0 |
| - Value: 0x5 |
| - Value: 0x00 |
| - Value: 0xCB |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x10 |
| - Value: 0x5 |
| - Value: 0x06 |
| - Value: 0xB3 |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x20 |
| - Value: 0x5 |
| - Value: 0x0C |
| - Value: 0xB1 |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x30 |
| - Value: 0x5 |
| - Value: 0x12 |
| - Value: 0xC0 |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x40 |
| - Value: 0x5 |
| - Value: 0x18 |
| - Value: 0xB2 |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x50 |
| - Value: 0x5 |
| - Value: 0x1E |
| - Value: 0xC1 |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x60 |
| - Value: 0x5 |
| - Value: 0x24 |
| - Value: 0xC2 |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x70 |
| - Value: 0x5 |
| - Value: 0x2a |
| - Value: 0xEE |
| - Value: 0x1 |
| - AbbrCode: 0x2 |
| Values: |
| - Value: 0x80 |
| - Value: 0x5 |
| - Value: 0x30 |
| - Value: 0x01 |
| - Value: 0x1 |
| - AbbrCode: 0x0 |
| ... |
| )"; |
| YAMLModuleTester t(yamldata); |
| |
| DWARFUnit *unit = t.GetDwarfUnit(); |
| ASSERT_NE(unit, nullptr); |
| const DWARFDebugInfoEntry *cu_entry = unit->DIE().GetDIE(); |
| ASSERT_EQ(cu_entry->Tag(), DW_TAG_compile_unit); |
| DWARFDIE cu_die(unit, cu_entry); |
| |
| auto holder = std::make_unique<clang_utils::TypeSystemClangHolder>("ast"); |
| auto &ast_ctx = *holder->GetAST(); |
| DWARFASTParserClangStub ast_parser(ast_ctx); |
| |
| std::vector<std::string> found_function_types; |
| // The DWARF above is just a list of functions. Parse all of them to |
| // extract the function types and their calling convention values. |
| for (DWARFDIE func : cu_die.children()) { |
| ASSERT_EQ(func.Tag(), DW_TAG_subprogram); |
| SymbolContext sc; |
| bool new_type = false; |
| lldb::TypeSP type = ast_parser.ParseTypeFromDWARF(sc, func, &new_type); |
| found_function_types.push_back( |
| type->GetForwardCompilerType().GetTypeName().AsCString()); |
| } |
| |
| // Compare the parsed function types against the expected list of types. |
| const std::vector<std::string> expected_function_types = { |
| "void () __attribute__((regcall))", |
| "void () __attribute__((fastcall))", |
| "void () __attribute__((stdcall))", |
| "void () __attribute__((vectorcall))", |
| "void () __attribute__((pascal))", |
| "void () __attribute__((ms_abi))", |
| "void () __attribute__((sysv_abi))", |
| "void ()", // invalid calling convention. |
| "void ()", // DW_CC_normal -> no attribute |
| }; |
| ASSERT_EQ(found_function_types, expected_function_types); |
| } |
| |
| TEST_F(DWARFASTParserClangTests, TestPtrAuthParsing) { |
| // Tests parsing values with type DW_TAG_LLVM_ptrauth_type corresponding to |
| // explicitly signed raw function pointers |
| |
| // This is Dwarf for the following C code: |
| // ``` |
| // void (*__ptrauth(0, 0, 42) a)(); |
| // ``` |
| |
| const char *yamldata = R"( |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_AARCH64 |
| DWARF: |
| debug_str: |
| - a |
| debug_abbrev: |
| - ID: 0 |
| Table: |
| - Code: 0x01 |
| Tag: DW_TAG_compile_unit |
| Children: DW_CHILDREN_yes |
| Attributes: |
| - Attribute: DW_AT_language |
| Form: DW_FORM_data2 |
| - Code: 0x02 |
| Tag: DW_TAG_variable |
| Children: DW_CHILDREN_no |
| Attributes: |
| - Attribute: DW_AT_name |
| Form: DW_FORM_strp |
| - Attribute: DW_AT_type |
| Form: DW_FORM_ref4 |
| - Attribute: DW_AT_external |
| Form: DW_FORM_flag_present |
| - Code: 0x03 |
| Tag: DW_TAG_LLVM_ptrauth_type |
| Children: DW_CHILDREN_no |
| Attributes: |
| - Attribute: DW_AT_type |
| Form: DW_FORM_ref4 |
| - Attribute: DW_AT_LLVM_ptrauth_key |
| Form: DW_FORM_data1 |
| - Attribute: DW_AT_LLVM_ptrauth_extra_discriminator |
| Form: DW_FORM_data2 |
| - Code: 0x04 |
| Tag: DW_TAG_pointer_type |
| Children: DW_CHILDREN_no |
| Attributes: |
| - Attribute: DW_AT_type |
| Form: DW_FORM_ref4 |
| - Code: 0x05 |
| Tag: DW_TAG_subroutine_type |
| Children: DW_CHILDREN_yes |
| - Code: 0x06 |
| Tag: DW_TAG_unspecified_parameters |
| Children: DW_CHILDREN_no |
| |
| debug_info: |
| - Version: 5 |
| UnitType: DW_UT_compile |
| AddrSize: 8 |
| Entries: |
| # 0x0c: DW_TAG_compile_unit |
| # DW_AT_language [DW_FORM_data2] (DW_LANG_C99) |
| - AbbrCode: 0x01 |
| Values: |
| - Value: 0x0c |
| |
| # 0x0f: DW_TAG_variable |
| # DW_AT_name [DW_FORM_strp] (\"a\") |
| # DW_AT_type [DW_FORM_ref4] (0x00000018 \"void (*__ptrauth(0, 0, 0x02a)\") |
| # DW_AT_external [DW_FORM_flag_present] (true) |
| - AbbrCode: 0x02 |
| Values: |
| - Value: 0x00 |
| - Value: 0x18 |
| |
| # 0x18: DW_TAG_LLVM_ptrauth_type |
| # DW_AT_type [DW_FORM_ref4] (0x00000020 \"void (*)(...)\") |
| # DW_AT_LLVM_ptrauth_key [DW_FORM_data1] (0x00) |
| # DW_AT_LLVM_ptrauth_extra_discriminator [DW_FORM_data2] (0x002a) |
| - AbbrCode: 0x03 |
| Values: |
| - Value: 0x20 |
| - Value: 0x00 |
| - Value: 0x2a |
| |
| # 0x20: DW_TAG_pointer_type |
| # DW_AT_type [DW_AT_type [DW_FORM_ref4] (0x00000025 \"void (...)\") |
| - AbbrCode: 0x04 |
| Values: |
| - Value: 0x25 |
| |
| # 0x25: DW_TAG_subroutine_type |
| - AbbrCode: 0x05 |
| |
| # 0x26: DW_TAG_unspecified_parameters |
| - AbbrCode: 0x06 |
| |
| - AbbrCode: 0x00 # end of child tags of 0x25 |
| - AbbrCode: 0x00 # end of child tags of 0x0c |
| ... |
| )"; |
| YAMLModuleTester t(yamldata); |
| |
| DWARFUnit *unit = t.GetDwarfUnit(); |
| ASSERT_NE(unit, nullptr); |
| const DWARFDebugInfoEntry *cu_entry = unit->DIE().GetDIE(); |
| ASSERT_EQ(cu_entry->Tag(), DW_TAG_compile_unit); |
| DWARFDIE cu_die(unit, cu_entry); |
| |
| auto holder = std::make_unique<clang_utils::TypeSystemClangHolder>("ast"); |
| auto &ast_ctx = *holder->GetAST(); |
| DWARFASTParserClangStub ast_parser(ast_ctx); |
| |
| DWARFDIE ptrauth_variable = cu_die.GetFirstChild(); |
| ASSERT_EQ(ptrauth_variable.Tag(), DW_TAG_variable); |
| DWARFDIE ptrauth_type = |
| ptrauth_variable.GetAttributeValueAsReferenceDIE(DW_AT_type); |
| ASSERT_EQ(ptrauth_type.Tag(), DW_TAG_LLVM_ptrauth_type); |
| |
| SymbolContext sc; |
| bool new_type = false; |
| lldb::TypeSP type_sp = |
| ast_parser.ParseTypeFromDWARF(sc, ptrauth_type, &new_type); |
| CompilerType compiler_type = type_sp->GetForwardCompilerType(); |
| ASSERT_EQ(compiler_type.GetPtrAuthKey(), 0U); |
| ASSERT_EQ(compiler_type.GetPtrAuthAddressDiversity(), false); |
| ASSERT_EQ(compiler_type.GetPtrAuthDiscriminator(), 42U); |
| } |
| |
| struct ExtractIntFromFormValueTest : public testing::Test { |
| SubsystemRAII<FileSystem, HostInfo> subsystems; |
| clang_utils::TypeSystemClangHolder holder; |
| TypeSystemClang &ts; |
| |
| DWARFASTParserClang parser; |
| ExtractIntFromFormValueTest() |
| : holder("dummy ASTContext"), ts(*holder.GetAST()), parser(ts) {} |
| |
| /// Takes the given integer value, stores it in a DWARFFormValue and then |
| /// tries to extract the value back via |
| /// DWARFASTParserClang::ExtractIntFromFormValue. |
| /// Returns the string representation of the extracted value or the error |
| /// that was returned from ExtractIntFromFormValue. |
| llvm::Expected<std::string> Extract(clang::QualType qt, uint64_t value) { |
| DWARFFormValue form_value; |
| form_value.SetUnsigned(value); |
| llvm::Expected<llvm::APInt> result = |
| parser.ExtractIntFromFormValue(ts.GetType(qt), form_value); |
| if (!result) |
| return result.takeError(); |
| llvm::SmallString<16> result_str; |
| result->toStringUnsigned(result_str); |
| return std::string(result_str.str()); |
| } |
| |
| /// Same as ExtractIntFromFormValueTest::Extract but takes a signed integer |
| /// and treats the result as a signed integer. |
| llvm::Expected<std::string> ExtractS(clang::QualType qt, int64_t value) { |
| DWARFFormValue form_value; |
| form_value.SetSigned(value); |
| llvm::Expected<llvm::APInt> result = |
| parser.ExtractIntFromFormValue(ts.GetType(qt), form_value); |
| if (!result) |
| return result.takeError(); |
| llvm::SmallString<16> result_str; |
| result->toStringSigned(result_str); |
| return std::string(result_str.str()); |
| } |
| }; |
| |
| TEST_F(ExtractIntFromFormValueTest, TestBool) { |
| using namespace llvm; |
| clang::ASTContext &ast = ts.getASTContext(); |
| |
| EXPECT_THAT_EXPECTED(Extract(ast.BoolTy, 0), HasValue("0")); |
| EXPECT_THAT_EXPECTED(Extract(ast.BoolTy, 1), HasValue("1")); |
| EXPECT_THAT_EXPECTED(Extract(ast.BoolTy, 2), Failed()); |
| EXPECT_THAT_EXPECTED(Extract(ast.BoolTy, 3), Failed()); |
| } |
| |
| TEST_F(ExtractIntFromFormValueTest, TestInt) { |
| using namespace llvm; |
| |
| clang::ASTContext &ast = ts.getASTContext(); |
| |
| // Find the min/max values for 'int' on the current host target. |
| constexpr int64_t int_max = std::numeric_limits<int>::max(); |
| constexpr int64_t int_min = std::numeric_limits<int>::min(); |
| |
| // Check that the bit width of int matches the int width in our type system. |
| ASSERT_EQ(sizeof(int) * 8, ast.getIntWidth(ast.IntTy)); |
| |
| // Check values around int_min. |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_min - 2), llvm::Failed()); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_min - 1), llvm::Failed()); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_min), |
| HasValue(std::to_string(int_min))); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_min + 1), |
| HasValue(std::to_string(int_min + 1))); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_min + 2), |
| HasValue(std::to_string(int_min + 2))); |
| |
| // Check values around 0. |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, -128), HasValue("-128")); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, -10), HasValue("-10")); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, -1), HasValue("-1")); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, 0), HasValue("0")); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, 1), HasValue("1")); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, 10), HasValue("10")); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, 128), HasValue("128")); |
| |
| // Check values around int_max. |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_max - 2), |
| HasValue(std::to_string(int_max - 2))); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_max - 1), |
| HasValue(std::to_string(int_max - 1))); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_max), |
| HasValue(std::to_string(int_max))); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_max + 1), llvm::Failed()); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_max + 5), llvm::Failed()); |
| |
| // Check some values not near an edge case. |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_max / 2), |
| HasValue(std::to_string(int_max / 2))); |
| EXPECT_THAT_EXPECTED(ExtractS(ast.IntTy, int_min / 2), |
| HasValue(std::to_string(int_min / 2))); |
| } |
| |
| TEST_F(ExtractIntFromFormValueTest, TestUnsignedInt) { |
| using namespace llvm; |
| |
| clang::ASTContext &ast = ts.getASTContext(); |
| constexpr uint64_t uint_max = std::numeric_limits<uint32_t>::max(); |
| |
| // Check values around 0. |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, 0), HasValue("0")); |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, 1), HasValue("1")); |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, 1234), HasValue("1234")); |
| |
| // Check some values not near an edge case. |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, uint_max / 2), |
| HasValue(std::to_string(uint_max / 2))); |
| |
| // Check values around uint_max. |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, uint_max - 2), |
| HasValue(std::to_string(uint_max - 2))); |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, uint_max - 1), |
| HasValue(std::to_string(uint_max - 1))); |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, uint_max), |
| HasValue(std::to_string(uint_max))); |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, uint_max + 1), |
| llvm::Failed()); |
| EXPECT_THAT_EXPECTED(Extract(ast.UnsignedIntTy, uint_max + 2), |
| llvm::Failed()); |
| } |
| |
| TEST_F(DWARFASTParserClangTests, TestDefaultTemplateParamParsing) { |
| // Tests parsing DW_AT_default_value for template parameters. |
| auto BufferOrError = llvm::MemoryBuffer::getFile( |
| GetInputFilePath("DW_AT_default_value-test.yaml"), /*IsText=*/true); |
| ASSERT_TRUE(BufferOrError); |
| YAMLModuleTester t(BufferOrError.get()->getBuffer()); |
| |
| DWARFUnit *unit = t.GetDwarfUnit(); |
| ASSERT_NE(unit, nullptr); |
| const DWARFDebugInfoEntry *cu_entry = unit->DIE().GetDIE(); |
| ASSERT_EQ(cu_entry->Tag(), DW_TAG_compile_unit); |
| DWARFDIE cu_die(unit, cu_entry); |
| |
| auto holder = std::make_unique<clang_utils::TypeSystemClangHolder>("ast"); |
| auto &ast_ctx = *holder->GetAST(); |
| DWARFASTParserClangStub ast_parser(ast_ctx); |
| |
| llvm::SmallVector<lldb::TypeSP, 2> types; |
| for (DWARFDIE die : cu_die.children()) { |
| if (die.Tag() == DW_TAG_class_type) { |
| SymbolContext sc; |
| bool new_type = false; |
| types.push_back(ast_parser.ParseTypeFromDWARF(sc, die, &new_type)); |
| } |
| } |
| |
| ASSERT_EQ(types.size(), 3U); |
| |
| auto check_decl = [](auto const *decl) { |
| clang::ClassTemplateSpecializationDecl const *ctsd = |
| llvm::dyn_cast_or_null<clang::ClassTemplateSpecializationDecl>(decl); |
| ASSERT_NE(ctsd, nullptr); |
| |
| auto const &args = ctsd->getTemplateArgs(); |
| ASSERT_GT(args.size(), 0U); |
| |
| for (auto const &arg : args.asArray()) { |
| EXPECT_TRUE(arg.getIsDefaulted()); |
| } |
| }; |
| |
| for (auto const &type_sp : types) { |
| ASSERT_NE(type_sp, nullptr); |
| auto const *decl = ClangUtil::GetAsTagDecl(type_sp->GetFullCompilerType()); |
| if (decl->getName() == "bar" || decl->getName() == "baz") { |
| check_decl(decl); |
| } |
| } |
| } |
