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Diffstat (limited to 'lldb/source/Symbol/ClangASTContext.cpp')
| -rw-r--r-- | lldb/source/Symbol/ClangASTContext.cpp | 10352 |
1 files changed, 10352 insertions, 0 deletions
diff --git a/lldb/source/Symbol/ClangASTContext.cpp b/lldb/source/Symbol/ClangASTContext.cpp new file mode 100644 index 0000000000000..565b15a007daa --- /dev/null +++ b/lldb/source/Symbol/ClangASTContext.cpp @@ -0,0 +1,10352 @@ +//===-- ClangASTContext.cpp -------------------------------------*- C++ -*-===// +// +// 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 "lldb/Symbol/ClangASTContext.h" + +#include "llvm/Support/FormatAdapters.h" +#include "llvm/Support/FormatVariadic.h" + +#include <mutex> +#include <string> +#include <vector> + + +// Clang headers like to use NDEBUG inside of them to enable/disable debug +// related features using "#ifndef NDEBUG" preprocessor blocks to do one thing +// or another. This is bad because it means that if clang was built in release +// mode, it assumes that you are building in release mode which is not always +// the case. You can end up with functions that are defined as empty in header +// files when NDEBUG is not defined, and this can cause link errors with the +// clang .a files that you have since you might be missing functions in the .a +// file. So we have to define NDEBUG when including clang headers to avoid any +// mismatches. This is covered by rdar://problem/8691220 + +#if !defined(NDEBUG) && !defined(LLVM_NDEBUG_OFF) +#define LLDB_DEFINED_NDEBUG_FOR_CLANG +#define NDEBUG +// Need to include assert.h so it is as clang would expect it to be (disabled) +#include <assert.h> +#endif + +#include "clang/AST/ASTContext.h" +#include "clang/AST/ASTImporter.h" +#include "clang/AST/Attr.h" +#include "clang/AST/CXXInheritance.h" +#include "clang/AST/DeclObjC.h" +#include "clang/AST/DeclTemplate.h" +#include "clang/AST/Mangle.h" +#include "clang/AST/RecordLayout.h" +#include "clang/AST/Type.h" +#include "clang/AST/VTableBuilder.h" +#include "clang/Basic/Builtins.h" +#include "clang/Basic/Diagnostic.h" +#include "clang/Basic/FileManager.h" +#include "clang/Basic/FileSystemOptions.h" +#include "clang/Basic/LangStandard.h" +#include "clang/Basic/SourceManager.h" +#include "clang/Basic/TargetInfo.h" +#include "clang/Basic/TargetOptions.h" +#include "clang/Frontend/FrontendOptions.h" +#include "clang/Sema/Sema.h" + +#ifdef LLDB_DEFINED_NDEBUG_FOR_CLANG +#undef NDEBUG +#undef LLDB_DEFINED_NDEBUG_FOR_CLANG +// Need to re-include assert.h so it is as _we_ would expect it to be (enabled) +#include <assert.h> +#endif + +#include "llvm/Support/Signals.h" +#include "llvm/Support/Threading.h" + +#include "Plugins/ExpressionParser/Clang/ClangFunctionCaller.h" +#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h" +#include "Plugins/ExpressionParser/Clang/ClangUserExpression.h" +#include "Plugins/ExpressionParser/Clang/ClangUtilityFunction.h" +#include "lldb/Utility/ArchSpec.h" +#include "lldb/Utility/Flags.h" + +#include "lldb/Core/DumpDataExtractor.h" +#include "lldb/Core/Module.h" +#include "lldb/Core/PluginManager.h" +#include "lldb/Core/StreamFile.h" +#include "lldb/Core/ThreadSafeDenseMap.h" +#include "lldb/Core/UniqueCStringMap.h" +#include "lldb/Symbol/ClangASTImporter.h" +#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h" +#include "lldb/Symbol/ClangExternalASTSourceCommon.h" +#include "lldb/Symbol/ClangUtil.h" +#include "lldb/Symbol/ObjectFile.h" +#include "lldb/Symbol/SymbolFile.h" +#include "lldb/Target/ExecutionContext.h" +#include "lldb/Target/Language.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/Target.h" +#include "lldb/Utility/DataExtractor.h" +#include "lldb/Utility/LLDBAssert.h" +#include "lldb/Utility/Log.h" +#include "lldb/Utility/RegularExpression.h" +#include "lldb/Utility/Scalar.h" + +#include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h" +#include "Plugins/SymbolFile/DWARF/DWARFASTParserClang.h" +#include "Plugins/SymbolFile/PDB/PDBASTParser.h" + +#include <stdio.h> + +#include <mutex> + +using namespace lldb; +using namespace lldb_private; +using namespace clang; +using llvm::StringSwitch; + +namespace { +#ifdef LLDB_CONFIGURATION_DEBUG +static void VerifyDecl(clang::Decl *decl) { + assert(decl && "VerifyDecl called with nullptr?"); + decl->getAccess(); +} +#endif + +static inline bool +ClangASTContextSupportsLanguage(lldb::LanguageType language) { + return language == eLanguageTypeUnknown || // Clang is the default type system + lldb_private::Language::LanguageIsC(language) || + lldb_private::Language::LanguageIsCPlusPlus(language) || + lldb_private::Language::LanguageIsObjC(language) || + lldb_private::Language::LanguageIsPascal(language) || + // Use Clang for Rust until there is a proper language plugin for it + language == eLanguageTypeRust || + language == eLanguageTypeExtRenderScript || + // Use Clang for D until there is a proper language plugin for it + language == eLanguageTypeD || + // Open Dylan compiler debug info is designed to be Clang-compatible + language == eLanguageTypeDylan; +} + +// Checks whether m1 is an overload of m2 (as opposed to an override). This is +// called by addOverridesForMethod to distinguish overrides (which share a +// vtable entry) from overloads (which require distinct entries). +bool isOverload(clang::CXXMethodDecl *m1, clang::CXXMethodDecl *m2) { + // FIXME: This should detect covariant return types, but currently doesn't. + lldbassert(&m1->getASTContext() == &m2->getASTContext() && + "Methods should have the same AST context"); + clang::ASTContext &context = m1->getASTContext(); + + const auto *m1Type = llvm::cast<clang::FunctionProtoType>( + context.getCanonicalType(m1->getType())); + + const auto *m2Type = llvm::cast<clang::FunctionProtoType>( + context.getCanonicalType(m2->getType())); + + auto compareArgTypes = [&context](const clang::QualType &m1p, + const clang::QualType &m2p) { + return context.hasSameType(m1p.getUnqualifiedType(), + m2p.getUnqualifiedType()); + }; + + // FIXME: In C++14 and later, we can just pass m2Type->param_type_end() + // as a fourth parameter to std::equal(). + return (m1->getNumParams() != m2->getNumParams()) || + !std::equal(m1Type->param_type_begin(), m1Type->param_type_end(), + m2Type->param_type_begin(), compareArgTypes); +} + +// If decl is a virtual method, walk the base classes looking for methods that +// decl overrides. This table of overridden methods is used by IRGen to +// determine the vtable layout for decl's parent class. +void addOverridesForMethod(clang::CXXMethodDecl *decl) { + if (!decl->isVirtual()) + return; + + clang::CXXBasePaths paths; + + auto find_overridden_methods = + [decl](const clang::CXXBaseSpecifier *specifier, + clang::CXXBasePath &path) { + if (auto *base_record = llvm::dyn_cast<clang::CXXRecordDecl>( + specifier->getType()->getAs<clang::RecordType>()->getDecl())) { + + clang::DeclarationName name = decl->getDeclName(); + + // If this is a destructor, check whether the base class destructor is + // virtual. + if (name.getNameKind() == clang::DeclarationName::CXXDestructorName) + if (auto *baseDtorDecl = base_record->getDestructor()) { + if (baseDtorDecl->isVirtual()) { + path.Decls = baseDtorDecl; + return true; + } else + return false; + } + + // Otherwise, search for name in the base class. + for (path.Decls = base_record->lookup(name); !path.Decls.empty(); + path.Decls = path.Decls.slice(1)) { + if (auto *method_decl = + llvm::dyn_cast<clang::CXXMethodDecl>(path.Decls.front())) + if (method_decl->isVirtual() && !isOverload(decl, method_decl)) { + path.Decls = method_decl; + return true; + } + } + } + + return false; + }; + + if (decl->getParent()->lookupInBases(find_overridden_methods, paths)) { + for (auto *overridden_decl : paths.found_decls()) + decl->addOverriddenMethod( + llvm::cast<clang::CXXMethodDecl>(overridden_decl)); + } +} +} + +static lldb::addr_t GetVTableAddress(Process &process, + VTableContextBase &vtable_ctx, + ValueObject &valobj, + const ASTRecordLayout &record_layout) { + // Retrieve type info + CompilerType pointee_type; + CompilerType this_type(valobj.GetCompilerType()); + uint32_t type_info = this_type.GetTypeInfo(&pointee_type); + if (!type_info) + return LLDB_INVALID_ADDRESS; + + // Check if it's a pointer or reference + bool ptr_or_ref = false; + if (type_info & (eTypeIsPointer | eTypeIsReference)) { + ptr_or_ref = true; + type_info = pointee_type.GetTypeInfo(); + } + + // We process only C++ classes + const uint32_t cpp_class = eTypeIsClass | eTypeIsCPlusPlus; + if ((type_info & cpp_class) != cpp_class) + return LLDB_INVALID_ADDRESS; + + // Calculate offset to VTable pointer + lldb::offset_t vbtable_ptr_offset = + vtable_ctx.isMicrosoft() ? record_layout.getVBPtrOffset().getQuantity() + : 0; + + if (ptr_or_ref) { + // We have a pointer / ref to object, so read + // VTable pointer from process memory + + if (valobj.GetAddressTypeOfChildren() != eAddressTypeLoad) + return LLDB_INVALID_ADDRESS; + + auto vbtable_ptr_addr = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS); + if (vbtable_ptr_addr == LLDB_INVALID_ADDRESS) + return LLDB_INVALID_ADDRESS; + + vbtable_ptr_addr += vbtable_ptr_offset; + + Status err; + return process.ReadPointerFromMemory(vbtable_ptr_addr, err); + } + + // We have an object already read from process memory, + // so just extract VTable pointer from it + + DataExtractor data; + Status err; + auto size = valobj.GetData(data, err); + if (err.Fail() || vbtable_ptr_offset + data.GetAddressByteSize() > size) + return LLDB_INVALID_ADDRESS; + + return data.GetPointer(&vbtable_ptr_offset); +} + +static int64_t ReadVBaseOffsetFromVTable(Process &process, + VTableContextBase &vtable_ctx, + lldb::addr_t vtable_ptr, + const CXXRecordDecl *cxx_record_decl, + const CXXRecordDecl *base_class_decl) { + if (vtable_ctx.isMicrosoft()) { + clang::MicrosoftVTableContext &msoft_vtable_ctx = + static_cast<clang::MicrosoftVTableContext &>(vtable_ctx); + + // Get the index into the virtual base table. The + // index is the index in uint32_t from vbtable_ptr + const unsigned vbtable_index = + msoft_vtable_ctx.getVBTableIndex(cxx_record_decl, base_class_decl); + const lldb::addr_t base_offset_addr = vtable_ptr + vbtable_index * 4; + Status err; + return process.ReadSignedIntegerFromMemory(base_offset_addr, 4, INT64_MAX, + err); + } + + clang::ItaniumVTableContext &itanium_vtable_ctx = + static_cast<clang::ItaniumVTableContext &>(vtable_ctx); + + clang::CharUnits base_offset_offset = + itanium_vtable_ctx.getVirtualBaseOffsetOffset(cxx_record_decl, + base_class_decl); + const lldb::addr_t base_offset_addr = + vtable_ptr + base_offset_offset.getQuantity(); + const uint32_t base_offset_size = process.GetAddressByteSize(); + Status err; + return process.ReadSignedIntegerFromMemory(base_offset_addr, base_offset_size, + INT64_MAX, err); +} + +static bool GetVBaseBitOffset(VTableContextBase &vtable_ctx, + ValueObject &valobj, + const ASTRecordLayout &record_layout, + const CXXRecordDecl *cxx_record_decl, + const CXXRecordDecl *base_class_decl, + int32_t &bit_offset) { + ExecutionContext exe_ctx(valobj.GetExecutionContextRef()); + Process *process = exe_ctx.GetProcessPtr(); + if (!process) + return false; + + lldb::addr_t vtable_ptr = + GetVTableAddress(*process, vtable_ctx, valobj, record_layout); + if (vtable_ptr == LLDB_INVALID_ADDRESS) + return false; + + auto base_offset = ReadVBaseOffsetFromVTable( + *process, vtable_ctx, vtable_ptr, cxx_record_decl, base_class_decl); + if (base_offset == INT64_MAX) + return false; + + bit_offset = base_offset * 8; + + return true; +} + +typedef lldb_private::ThreadSafeDenseMap<clang::ASTContext *, ClangASTContext *> + ClangASTMap; + +static ClangASTMap &GetASTMap() { + static ClangASTMap *g_map_ptr = nullptr; + static llvm::once_flag g_once_flag; + llvm::call_once(g_once_flag, []() { + g_map_ptr = new ClangASTMap(); // leaked on purpose to avoid spins + }); + return *g_map_ptr; +} + +bool ClangASTContext::IsOperator(llvm::StringRef name, + clang::OverloadedOperatorKind &op_kind) { + // All operators have to start with "operator". + if (!name.consume_front("operator")) + return false; + + // Remember if there was a space after "operator". This is necessary to + // check for collisions with strangely named functions like "operatorint()". + bool space_after_operator = name.consume_front(" "); + + op_kind = StringSwitch<clang::OverloadedOperatorKind>(name) + .Case("+", clang::OO_Plus) + .Case("+=", clang::OO_PlusEqual) + .Case("++", clang::OO_PlusPlus) + .Case("-", clang::OO_Minus) + .Case("-=", clang::OO_MinusEqual) + .Case("--", clang::OO_MinusMinus) + .Case("->", clang::OO_Arrow) + .Case("->*", clang::OO_ArrowStar) + .Case("*", clang::OO_Star) + .Case("*=", clang::OO_StarEqual) + .Case("/", clang::OO_Slash) + .Case("/=", clang::OO_SlashEqual) + .Case("%", clang::OO_Percent) + .Case("%=", clang::OO_PercentEqual) + .Case("^", clang::OO_Caret) + .Case("^=", clang::OO_CaretEqual) + .Case("&", clang::OO_Amp) + .Case("&=", clang::OO_AmpEqual) + .Case("&&", clang::OO_AmpAmp) + .Case("|", clang::OO_Pipe) + .Case("|=", clang::OO_PipeEqual) + .Case("||", clang::OO_PipePipe) + .Case("~", clang::OO_Tilde) + .Case("!", clang::OO_Exclaim) + .Case("!=", clang::OO_ExclaimEqual) + .Case("=", clang::OO_Equal) + .Case("==", clang::OO_EqualEqual) + .Case("<", clang::OO_Less) + .Case("<<", clang::OO_LessLess) + .Case("<<=", clang::OO_LessLessEqual) + .Case("<=", clang::OO_LessEqual) + .Case(">", clang::OO_Greater) + .Case(">>", clang::OO_GreaterGreater) + .Case(">>=", clang::OO_GreaterGreaterEqual) + .Case(">=", clang::OO_GreaterEqual) + .Case("()", clang::OO_Call) + .Case("[]", clang::OO_Subscript) + .Case(",", clang::OO_Comma) + .Default(clang::NUM_OVERLOADED_OPERATORS); + + // We found a fitting operator, so we can exit now. + if (op_kind != clang::NUM_OVERLOADED_OPERATORS) + return true; + + // After the "operator " or "operator" part is something unknown. This means + // it's either one of the named operators (new/delete), a conversion operator + // (e.g. operator bool) or a function which name starts with "operator" + // (e.g. void operatorbool). + + // If it's a function that starts with operator it can't have a space after + // "operator" because identifiers can't contain spaces. + // E.g. "operator int" (conversion operator) + // vs. "operatorint" (function with colliding name). + if (!space_after_operator) + return false; // not an operator. + + // Now the operator is either one of the named operators or a conversion + // operator. + op_kind = StringSwitch<clang::OverloadedOperatorKind>(name) + .Case("new", clang::OO_New) + .Case("new[]", clang::OO_Array_New) + .Case("delete", clang::OO_Delete) + .Case("delete[]", clang::OO_Array_Delete) + // conversion operators hit this case. + .Default(clang::NUM_OVERLOADED_OPERATORS); + + return true; +} + +clang::AccessSpecifier +ClangASTContext::ConvertAccessTypeToAccessSpecifier(AccessType access) { + switch (access) { + default: + break; + case eAccessNone: + return AS_none; + case eAccessPublic: + return AS_public; + case eAccessPrivate: + return AS_private; + case eAccessProtected: + return AS_protected; + } + return AS_none; +} + +static void ParseLangArgs(LangOptions &Opts, InputKind IK, const char *triple) { + // FIXME: Cleanup per-file based stuff. + + // Set some properties which depend solely on the input kind; it would be + // nice to move these to the language standard, and have the driver resolve + // the input kind + language standard. + if (IK.getLanguage() == clang::Language::Asm) { + Opts.AsmPreprocessor = 1; + } else if (IK.isObjectiveC()) { + Opts.ObjC = 1; + } + + LangStandard::Kind LangStd = LangStandard::lang_unspecified; + + if (LangStd == LangStandard::lang_unspecified) { + // Based on the base language, pick one. + switch (IK.getLanguage()) { + case clang::Language::Unknown: + case clang::Language::LLVM_IR: + case clang::Language::RenderScript: + llvm_unreachable("Invalid input kind!"); + case clang::Language::OpenCL: + LangStd = LangStandard::lang_opencl10; + break; + case clang::Language::CUDA: + LangStd = LangStandard::lang_cuda; + break; + case clang::Language::Asm: + case clang::Language::C: + case clang::Language::ObjC: + LangStd = LangStandard::lang_gnu99; + break; + case clang::Language::CXX: + case clang::Language::ObjCXX: + LangStd = LangStandard::lang_gnucxx98; + break; + case clang::Language::HIP: + LangStd = LangStandard::lang_hip; + break; + } + } + + const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); + Opts.LineComment = Std.hasLineComments(); + Opts.C99 = Std.isC99(); + Opts.CPlusPlus = Std.isCPlusPlus(); + Opts.CPlusPlus11 = Std.isCPlusPlus11(); + Opts.Digraphs = Std.hasDigraphs(); + Opts.GNUMode = Std.isGNUMode(); + Opts.GNUInline = !Std.isC99(); + Opts.HexFloats = Std.hasHexFloats(); + Opts.ImplicitInt = Std.hasImplicitInt(); + + Opts.WChar = true; + + // OpenCL has some additional defaults. + if (LangStd == LangStandard::lang_opencl10) { + Opts.OpenCL = 1; + Opts.AltiVec = 1; + Opts.CXXOperatorNames = 1; + Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::All); + } + + // OpenCL and C++ both have bool, true, false keywords. + Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; + + Opts.setValueVisibilityMode(DefaultVisibility); + + // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs is + // specified, or -std is set to a conforming mode. + Opts.Trigraphs = !Opts.GNUMode; + Opts.CharIsSigned = ArchSpec(triple).CharIsSignedByDefault(); + Opts.OptimizeSize = 0; + + // FIXME: Eliminate this dependency. + // unsigned Opt = + // Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags); + // Opts.Optimize = Opt != 0; + unsigned Opt = 0; + + // This is the __NO_INLINE__ define, which just depends on things like the + // optimization level and -fno-inline, not actually whether the backend has + // inlining enabled. + // + // FIXME: This is affected by other options (-fno-inline). + Opts.NoInlineDefine = !Opt; +} + +ClangASTContext::ClangASTContext(llvm::StringRef target_triple) + : TypeSystem(TypeSystem::eKindClang) { + if (!target_triple.empty()) + SetTargetTriple(target_triple); + // The caller didn't pass an ASTContext so create a new one for this + // ClangASTContext. + CreateASTContext(); +} + +ClangASTContext::ClangASTContext(ArchSpec arch) + : TypeSystem(TypeSystem::eKindClang) { + SetTargetTriple(arch.GetTriple().str()); + // The caller didn't pass an ASTContext so create a new one for this + // ClangASTContext. + CreateASTContext(); +} + +ClangASTContext::ClangASTContext(ASTContext &existing_ctxt) + : TypeSystem(TypeSystem::eKindClang) { + SetTargetTriple(existing_ctxt.getTargetInfo().getTriple().str()); + + m_ast_up.reset(&existing_ctxt); + GetASTMap().Insert(&existing_ctxt, this); +} + +// Destructor +ClangASTContext::~ClangASTContext() { Finalize(); } + +ConstString ClangASTContext::GetPluginNameStatic() { + return ConstString("clang"); +} + +ConstString ClangASTContext::GetPluginName() { + return ClangASTContext::GetPluginNameStatic(); +} + +uint32_t ClangASTContext::GetPluginVersion() { return 1; } + +lldb::TypeSystemSP ClangASTContext::CreateInstance(lldb::LanguageType language, + lldb_private::Module *module, + Target *target) { + if (ClangASTContextSupportsLanguage(language)) { + ArchSpec arch; + if (module) + arch = module->GetArchitecture(); + else if (target) + arch = target->GetArchitecture(); + + if (arch.IsValid()) { + ArchSpec fixed_arch = arch; + // LLVM wants this to be set to iOS or MacOSX; if we're working on + // a bare-boards type image, change the triple for llvm's benefit. + if (fixed_arch.GetTriple().getVendor() == llvm::Triple::Apple && + fixed_arch.GetTriple().getOS() == llvm::Triple::UnknownOS) { + if (fixed_arch.GetTriple().getArch() == llvm::Triple::arm || + fixed_arch.GetTriple().getArch() == llvm::Triple::aarch64 || + fixed_arch.GetTriple().getArch() == llvm::Triple::aarch64_32 || + fixed_arch.GetTriple().getArch() == llvm::Triple::thumb) { + fixed_arch.GetTriple().setOS(llvm::Triple::IOS); + } else { + fixed_arch.GetTriple().setOS(llvm::Triple::MacOSX); + } + } + + if (module) { + std::shared_ptr<ClangASTContext> ast_sp( + new ClangASTContext(fixed_arch)); + return ast_sp; + } else if (target && target->IsValid()) { + std::shared_ptr<ClangASTContextForExpressions> ast_sp( + new ClangASTContextForExpressions(*target, fixed_arch)); + ast_sp->m_scratch_ast_source_up.reset( + new ClangASTSource(target->shared_from_this())); + lldbassert(ast_sp->getFileManager()); + ast_sp->m_scratch_ast_source_up->InstallASTContext( + *ast_sp->getASTContext(), *ast_sp->getFileManager(), true); + llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> proxy_ast_source( + ast_sp->m_scratch_ast_source_up->CreateProxy()); + ast_sp->SetExternalSource(proxy_ast_source); + return ast_sp; + } + } + } + return lldb::TypeSystemSP(); +} + +LanguageSet ClangASTContext::GetSupportedLanguagesForTypes() { + LanguageSet languages; + languages.Insert(lldb::eLanguageTypeC89); + languages.Insert(lldb::eLanguageTypeC); + languages.Insert(lldb::eLanguageTypeC11); + languages.Insert(lldb::eLanguageTypeC_plus_plus); + languages.Insert(lldb::eLanguageTypeC99); + languages.Insert(lldb::eLanguageTypeObjC); + languages.Insert(lldb::eLanguageTypeObjC_plus_plus); + languages.Insert(lldb::eLanguageTypeC_plus_plus_03); + languages.Insert(lldb::eLanguageTypeC_plus_plus_11); + languages.Insert(lldb::eLanguageTypeC11); + languages.Insert(lldb::eLanguageTypeC_plus_plus_14); + return languages; +} + +LanguageSet ClangASTContext::GetSupportedLanguagesForExpressions() { + LanguageSet languages; + languages.Insert(lldb::eLanguageTypeC_plus_plus); + languages.Insert(lldb::eLanguageTypeObjC_plus_plus); + languages.Insert(lldb::eLanguageTypeC_plus_plus_03); + languages.Insert(lldb::eLanguageTypeC_plus_plus_11); + languages.Insert(lldb::eLanguageTypeC_plus_plus_14); + return languages; +} + +void ClangASTContext::Initialize() { + PluginManager::RegisterPlugin( + GetPluginNameStatic(), "clang base AST context plug-in", CreateInstance, + GetSupportedLanguagesForTypes(), GetSupportedLanguagesForExpressions()); +} + +void ClangASTContext::Terminate() { + PluginManager::UnregisterPlugin(CreateInstance); +} + +void ClangASTContext::Finalize() { + assert(m_ast_up); + GetASTMap().Erase(m_ast_up.get()); + if (!m_ast_owned) + m_ast_up.release(); + + m_builtins_up.reset(); + m_selector_table_up.reset(); + m_identifier_table_up.reset(); + m_target_info_up.reset(); + m_target_options_rp.reset(); + m_diagnostics_engine_up.reset(); + m_source_manager_up.reset(); + m_language_options_up.reset(); + m_scratch_ast_source_up.reset(); +} + +void ClangASTContext::setSema(Sema *s) { + // Ensure that the new sema actually belongs to our ASTContext. + assert(s == nullptr || &s->getASTContext() == m_ast_up.get()); + m_sema = s; +} + +const char *ClangASTContext::GetTargetTriple() { + return m_target_triple.c_str(); +} + +void ClangASTContext::SetTargetTriple(llvm::StringRef target_triple) { + m_target_triple = target_triple.str(); +} + +void ClangASTContext::SetExternalSource( + llvm::IntrusiveRefCntPtr<ExternalASTSource> &ast_source_up) { + ASTContext *ast = getASTContext(); + if (ast) { + ast->setExternalSource(ast_source_up); + ast->getTranslationUnitDecl()->setHasExternalLexicalStorage(true); + } +} + +ASTContext *ClangASTContext::getASTContext() { + assert(m_ast_up); + return m_ast_up.get(); +} + +void ClangASTContext::CreateASTContext() { + assert(!m_ast_up); + m_ast_owned = true; + m_ast_up.reset(new ASTContext(*getLanguageOptions(), *getSourceManager(), + *getIdentifierTable(), *getSelectorTable(), + *getBuiltinContext())); + + m_ast_up->getDiagnostics().setClient(getDiagnosticConsumer(), false); + + // This can be NULL if we don't know anything about the architecture or if + // the target for an architecture isn't enabled in the llvm/clang that we + // built + TargetInfo *target_info = getTargetInfo(); + if (target_info) + m_ast_up->InitBuiltinTypes(*target_info); + + if ((m_callback_tag_decl || m_callback_objc_decl) && m_callback_baton) { + m_ast_up->getTranslationUnitDecl()->setHasExternalLexicalStorage(); + // m_ast_up->getTranslationUnitDecl()->setHasExternalVisibleStorage(); + } + + GetASTMap().Insert(m_ast_up.get(), this); + + llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_up( + new ClangExternalASTSourceCallbacks( + ClangASTContext::CompleteTagDecl, + ClangASTContext::CompleteObjCInterfaceDecl, nullptr, + ClangASTContext::LayoutRecordType, this)); + SetExternalSource(ast_source_up); +} + +ClangASTContext *ClangASTContext::GetASTContext(clang::ASTContext *ast) { + ClangASTContext *clang_ast = GetASTMap().Lookup(ast); + return clang_ast; +} + +Builtin::Context *ClangASTContext::getBuiltinContext() { + if (m_builtins_up == nullptr) + m_builtins_up.reset(new Builtin::Context()); + return m_builtins_up.get(); +} + +IdentifierTable *ClangASTContext::getIdentifierTable() { + if (m_identifier_table_up == nullptr) + m_identifier_table_up.reset( + new IdentifierTable(*ClangASTContext::getLanguageOptions(), nullptr)); + return m_identifier_table_up.get(); +} + +LangOptions *ClangASTContext::getLanguageOptions() { + if (m_language_options_up == nullptr) { + m_language_options_up.reset(new LangOptions()); + ParseLangArgs(*m_language_options_up, clang::Language::ObjCXX, + GetTargetTriple()); + // InitializeLangOptions(*m_language_options_up, Language::ObjCXX); + } + return m_language_options_up.get(); +} + +SelectorTable *ClangASTContext::getSelectorTable() { + if (m_selector_table_up == nullptr) + m_selector_table_up.reset(new SelectorTable()); + return m_selector_table_up.get(); +} + +clang::FileManager *ClangASTContext::getFileManager() { + if (m_file_manager_up == nullptr) { + clang::FileSystemOptions file_system_options; + m_file_manager_up.reset(new clang::FileManager( + file_system_options, FileSystem::Instance().GetVirtualFileSystem())); + } + return m_file_manager_up.get(); +} + +clang::SourceManager *ClangASTContext::getSourceManager() { + if (m_source_manager_up == nullptr) + m_source_manager_up.reset( + new clang::SourceManager(*getDiagnosticsEngine(), *getFileManager())); + return m_source_manager_up.get(); +} + +clang::DiagnosticsEngine *ClangASTContext::getDiagnosticsEngine() { + if (m_diagnostics_engine_up == nullptr) { + llvm::IntrusiveRefCntPtr<DiagnosticIDs> diag_id_sp(new DiagnosticIDs()); + m_diagnostics_engine_up.reset( + new DiagnosticsEngine(diag_id_sp, new DiagnosticOptions())); + } + return m_diagnostics_engine_up.get(); +} + +clang::MangleContext *ClangASTContext::getMangleContext() { + if (m_mangle_ctx_up == nullptr) + m_mangle_ctx_up.reset(getASTContext()->createMangleContext()); + return m_mangle_ctx_up.get(); +} + +class NullDiagnosticConsumer : public DiagnosticConsumer { +public: + NullDiagnosticConsumer() { + m_log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS); + } + + void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel, + const clang::Diagnostic &info) override { + if (m_log) { + llvm::SmallVector<char, 32> diag_str(10); + info.FormatDiagnostic(diag_str); + diag_str.push_back('\0'); + LLDB_LOGF(m_log, "Compiler diagnostic: %s\n", diag_str.data()); + } + } + + DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const { + return new NullDiagnosticConsumer(); + } + +private: + Log *m_log; +}; + +DiagnosticConsumer *ClangASTContext::getDiagnosticConsumer() { + if (m_diagnostic_consumer_up == nullptr) + m_diagnostic_consumer_up.reset(new NullDiagnosticConsumer); + + return m_diagnostic_consumer_up.get(); +} + +std::shared_ptr<clang::TargetOptions> &ClangASTContext::getTargetOptions() { + if (m_target_options_rp == nullptr && !m_target_triple.empty()) { + m_target_options_rp = std::make_shared<clang::TargetOptions>(); + if (m_target_options_rp != nullptr) + m_target_options_rp->Triple = m_target_triple; + } + return m_target_options_rp; +} + +TargetInfo *ClangASTContext::getTargetInfo() { + // target_triple should be something like "x86_64-apple-macosx" + if (m_target_info_up == nullptr && !m_target_triple.empty()) + m_target_info_up.reset(TargetInfo::CreateTargetInfo(*getDiagnosticsEngine(), + getTargetOptions())); + return m_target_info_up.get(); +} + +#pragma mark Basic Types + +static inline bool QualTypeMatchesBitSize(const uint64_t bit_size, + ASTContext *ast, QualType qual_type) { + uint64_t qual_type_bit_size = ast->getTypeSize(qual_type); + return qual_type_bit_size == bit_size; +} + +CompilerType +ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(Encoding encoding, + size_t bit_size) { + return ClangASTContext::GetBuiltinTypeForEncodingAndBitSize( + getASTContext(), encoding, bit_size); +} + +CompilerType ClangASTContext::GetBuiltinTypeForEncodingAndBitSize( + ASTContext *ast, Encoding encoding, uint32_t bit_size) { + auto *clang_ast_context = ClangASTContext::GetASTContext(ast); + if (!ast) + return CompilerType(); + switch (encoding) { + case eEncodingInvalid: + if (QualTypeMatchesBitSize(bit_size, ast, ast->VoidPtrTy)) + return CompilerType(clang_ast_context, ast->VoidPtrTy.getAsOpaquePtr()); + break; + + case eEncodingUint: + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy)) + return CompilerType(clang_ast_context, + ast->UnsignedCharTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy)) + return CompilerType(clang_ast_context, + ast->UnsignedShortTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy)) + return CompilerType(clang_ast_context, + ast->UnsignedIntTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy)) + return CompilerType(clang_ast_context, + ast->UnsignedLongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy)) + return CompilerType(clang_ast_context, + ast->UnsignedLongLongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty)) + return CompilerType(clang_ast_context, + ast->UnsignedInt128Ty.getAsOpaquePtr()); + break; + + case eEncodingSint: + if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy)) + return CompilerType(clang_ast_context, + ast->SignedCharTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy)) + return CompilerType(clang_ast_context, ast->ShortTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy)) + return CompilerType(clang_ast_context, ast->IntTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->LongTy)) + return CompilerType(clang_ast_context, ast->LongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy)) + return CompilerType(clang_ast_context, ast->LongLongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty)) + return CompilerType(clang_ast_context, ast->Int128Ty.getAsOpaquePtr()); + break; + + case eEncodingIEEE754: + if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy)) + return CompilerType(clang_ast_context, ast->FloatTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy)) + return CompilerType(clang_ast_context, ast->DoubleTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy)) + return CompilerType(clang_ast_context, + ast->LongDoubleTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->HalfTy)) + return CompilerType(clang_ast_context, ast->HalfTy.getAsOpaquePtr()); + break; + + case eEncodingVector: + // Sanity check that bit_size is a multiple of 8's. + if (bit_size && !(bit_size & 0x7u)) + return CompilerType( + clang_ast_context, + ast->getExtVectorType(ast->UnsignedCharTy, bit_size / 8) + .getAsOpaquePtr()); + break; + } + + return CompilerType(); +} + +lldb::BasicType +ClangASTContext::GetBasicTypeEnumeration(ConstString name) { + if (name) { + typedef UniqueCStringMap<lldb::BasicType> TypeNameToBasicTypeMap; + static TypeNameToBasicTypeMap g_type_map; + static llvm::once_flag g_once_flag; + llvm::call_once(g_once_flag, []() { + // "void" + g_type_map.Append(ConstString("void"), eBasicTypeVoid); + + // "char" + g_type_map.Append(ConstString("char"), eBasicTypeChar); + g_type_map.Append(ConstString("signed char"), eBasicTypeSignedChar); + g_type_map.Append(ConstString("unsigned char"), eBasicTypeUnsignedChar); + g_type_map.Append(ConstString("wchar_t"), eBasicTypeWChar); + g_type_map.Append(ConstString("signed wchar_t"), eBasicTypeSignedWChar); + g_type_map.Append(ConstString("unsigned wchar_t"), + eBasicTypeUnsignedWChar); + // "short" + g_type_map.Append(ConstString("short"), eBasicTypeShort); + g_type_map.Append(ConstString("short int"), eBasicTypeShort); + g_type_map.Append(ConstString("unsigned short"), eBasicTypeUnsignedShort); + g_type_map.Append(ConstString("unsigned short int"), + eBasicTypeUnsignedShort); + + // "int" + g_type_map.Append(ConstString("int"), eBasicTypeInt); + g_type_map.Append(ConstString("signed int"), eBasicTypeInt); + g_type_map.Append(ConstString("unsigned int"), eBasicTypeUnsignedInt); + g_type_map.Append(ConstString("unsigned"), eBasicTypeUnsignedInt); + + // "long" + g_type_map.Append(ConstString("long"), eBasicTypeLong); + g_type_map.Append(ConstString("long int"), eBasicTypeLong); + g_type_map.Append(ConstString("unsigned long"), eBasicTypeUnsignedLong); + g_type_map.Append(ConstString("unsigned long int"), + eBasicTypeUnsignedLong); + + // "long long" + g_type_map.Append(ConstString("long long"), eBasicTypeLongLong); + g_type_map.Append(ConstString("long long int"), eBasicTypeLongLong); + g_type_map.Append(ConstString("unsigned long long"), + eBasicTypeUnsignedLongLong); + g_type_map.Append(ConstString("unsigned long long int"), + eBasicTypeUnsignedLongLong); + + // "int128" + g_type_map.Append(ConstString("__int128_t"), eBasicTypeInt128); + g_type_map.Append(ConstString("__uint128_t"), eBasicTypeUnsignedInt128); + + // Miscellaneous + g_type_map.Append(ConstString("bool"), eBasicTypeBool); + g_type_map.Append(ConstString("float"), eBasicTypeFloat); + g_type_map.Append(ConstString("double"), eBasicTypeDouble); + g_type_map.Append(ConstString("long double"), eBasicTypeLongDouble); + g_type_map.Append(ConstString("id"), eBasicTypeObjCID); + g_type_map.Append(ConstString("SEL"), eBasicTypeObjCSel); + g_type_map.Append(ConstString("nullptr"), eBasicTypeNullPtr); + g_type_map.Sort(); + }); + + return g_type_map.Find(name, eBasicTypeInvalid); + } + return eBasicTypeInvalid; +} + +CompilerType ClangASTContext::GetBasicType(ASTContext *ast, + ConstString name) { + if (ast) { + lldb::BasicType basic_type = ClangASTContext::GetBasicTypeEnumeration(name); + return ClangASTContext::GetBasicType(ast, basic_type); + } + return CompilerType(); +} + +uint32_t ClangASTContext::GetPointerByteSize() { + if (m_pointer_byte_size == 0) + if (auto size = GetBasicType(lldb::eBasicTypeVoid) + .GetPointerType() + .GetByteSize(nullptr)) + m_pointer_byte_size = *size; + return m_pointer_byte_size; +} + +CompilerType ClangASTContext::GetBasicType(lldb::BasicType basic_type) { + return GetBasicType(getASTContext(), basic_type); +} + +CompilerType ClangASTContext::GetBasicType(ASTContext *ast, + lldb::BasicType basic_type) { + if (!ast) + return CompilerType(); + lldb::opaque_compiler_type_t clang_type = + GetOpaqueCompilerType(ast, basic_type); + + if (clang_type) + return CompilerType(GetASTContext(ast), clang_type); + return CompilerType(); +} + +CompilerType ClangASTContext::GetBuiltinTypeForDWARFEncodingAndBitSize( + const char *type_name, uint32_t dw_ate, uint32_t bit_size) { + ASTContext *ast = getASTContext(); + +#define streq(a, b) strcmp(a, b) == 0 + assert(ast != nullptr); + if (ast) { + switch (dw_ate) { + default: + break; + + case DW_ATE_address: + if (QualTypeMatchesBitSize(bit_size, ast, ast->VoidPtrTy)) + return CompilerType(this, ast->VoidPtrTy.getAsOpaquePtr()); + break; + + case DW_ATE_boolean: + if (QualTypeMatchesBitSize(bit_size, ast, ast->BoolTy)) + return CompilerType(this, ast->BoolTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy)) + return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy)) + return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy)) + return CompilerType(this, ast->UnsignedIntTy.getAsOpaquePtr()); + break; + + case DW_ATE_lo_user: + // This has been seen to mean DW_AT_complex_integer + if (type_name) { + if (::strstr(type_name, "complex")) { + CompilerType complex_int_clang_type = + GetBuiltinTypeForDWARFEncodingAndBitSize("int", DW_ATE_signed, + bit_size / 2); + return CompilerType( + this, ast->getComplexType( + ClangUtil::GetQualType(complex_int_clang_type)) + .getAsOpaquePtr()); + } + } + break; + + case DW_ATE_complex_float: + if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatComplexTy)) + return CompilerType(this, ast->FloatComplexTy.getAsOpaquePtr()); + else if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleComplexTy)) + return CompilerType(this, ast->DoubleComplexTy.getAsOpaquePtr()); + else if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleComplexTy)) + return CompilerType(this, ast->LongDoubleComplexTy.getAsOpaquePtr()); + else { + CompilerType complex_float_clang_type = + GetBuiltinTypeForDWARFEncodingAndBitSize("float", DW_ATE_float, + bit_size / 2); + return CompilerType( + this, ast->getComplexType( + ClangUtil::GetQualType(complex_float_clang_type)) + .getAsOpaquePtr()); + } + break; + + case DW_ATE_float: + if (streq(type_name, "float") && + QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy)) + return CompilerType(this, ast->FloatTy.getAsOpaquePtr()); + if (streq(type_name, "double") && + QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy)) + return CompilerType(this, ast->DoubleTy.getAsOpaquePtr()); + if (streq(type_name, "long double") && + QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy)) + return CompilerType(this, ast->LongDoubleTy.getAsOpaquePtr()); + // Fall back to not requiring a name match + if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy)) + return CompilerType(this, ast->FloatTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy)) + return CompilerType(this, ast->DoubleTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy)) + return CompilerType(this, ast->LongDoubleTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->HalfTy)) + return CompilerType(this, ast->HalfTy.getAsOpaquePtr()); + break; + + case DW_ATE_signed: + if (type_name) { + if (streq(type_name, "wchar_t") && + QualTypeMatchesBitSize(bit_size, ast, ast->WCharTy) && + (getTargetInfo() && + TargetInfo::isTypeSigned(getTargetInfo()->getWCharType()))) + return CompilerType(this, ast->WCharTy.getAsOpaquePtr()); + if (streq(type_name, "void") && + QualTypeMatchesBitSize(bit_size, ast, ast->VoidTy)) + return CompilerType(this, ast->VoidTy.getAsOpaquePtr()); + if (strstr(type_name, "long long") && + QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy)) + return CompilerType(this, ast->LongLongTy.getAsOpaquePtr()); + if (strstr(type_name, "long") && + QualTypeMatchesBitSize(bit_size, ast, ast->LongTy)) + return CompilerType(this, ast->LongTy.getAsOpaquePtr()); + if (strstr(type_name, "short") && + QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy)) + return CompilerType(this, ast->ShortTy.getAsOpaquePtr()); + if (strstr(type_name, "char")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy)) + return CompilerType(this, ast->CharTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy)) + return CompilerType(this, ast->SignedCharTy.getAsOpaquePtr()); + } + if (strstr(type_name, "int")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy)) + return CompilerType(this, ast->IntTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty)) + return CompilerType(this, ast->Int128Ty.getAsOpaquePtr()); + } + } + // We weren't able to match up a type name, just search by size + if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy)) + return CompilerType(this, ast->CharTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy)) + return CompilerType(this, ast->ShortTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy)) + return CompilerType(this, ast->IntTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->LongTy)) + return CompilerType(this, ast->LongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy)) + return CompilerType(this, ast->LongLongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty)) + return CompilerType(this, ast->Int128Ty.getAsOpaquePtr()); + break; + + case DW_ATE_signed_char: + if (ast->getLangOpts().CharIsSigned && type_name && + streq(type_name, "char")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy)) + return CompilerType(this, ast->CharTy.getAsOpaquePtr()); + } + if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy)) + return CompilerType(this, ast->SignedCharTy.getAsOpaquePtr()); + break; + + case DW_ATE_unsigned: + if (type_name) { + if (streq(type_name, "wchar_t")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->WCharTy)) { + if (!(getTargetInfo() && + TargetInfo::isTypeSigned(getTargetInfo()->getWCharType()))) + return CompilerType(this, ast->WCharTy.getAsOpaquePtr()); + } + } + if (strstr(type_name, "long long")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy)) + return CompilerType(this, ast->UnsignedLongLongTy.getAsOpaquePtr()); + } else if (strstr(type_name, "long")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy)) + return CompilerType(this, ast->UnsignedLongTy.getAsOpaquePtr()); + } else if (strstr(type_name, "short")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy)) + return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr()); + } else if (strstr(type_name, "char")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy)) + return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr()); + } else if (strstr(type_name, "int")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy)) + return CompilerType(this, ast->UnsignedIntTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty)) + return CompilerType(this, ast->UnsignedInt128Ty.getAsOpaquePtr()); + } + } + // We weren't able to match up a type name, just search by size + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy)) + return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy)) + return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy)) + return CompilerType(this, ast->UnsignedIntTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy)) + return CompilerType(this, ast->UnsignedLongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy)) + return CompilerType(this, ast->UnsignedLongLongTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty)) + return CompilerType(this, ast->UnsignedInt128Ty.getAsOpaquePtr()); + break; + + case DW_ATE_unsigned_char: + if (!ast->getLangOpts().CharIsSigned && type_name && + streq(type_name, "char")) { + if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy)) + return CompilerType(this, ast->CharTy.getAsOpaquePtr()); + } + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy)) + return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr()); + if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy)) + return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr()); + break; + + case DW_ATE_imaginary_float: + break; + + case DW_ATE_UTF: + if (type_name) { + if (streq(type_name, "char16_t")) + return CompilerType(this, ast->Char16Ty.getAsOpaquePtr()); + if (streq(type_name, "char32_t")) + return CompilerType(this, ast->Char32Ty.getAsOpaquePtr()); + if (streq(type_name, "char8_t")) + return CompilerType(this, ast->Char8Ty.getAsOpaquePtr()); + } + break; + } + } + // This assert should fire for anything that we don't catch above so we know + // to fix any issues we run into. + if (type_name) { + Host::SystemLog(Host::eSystemLogError, "error: need to add support for " + "DW_TAG_base_type '%s' encoded with " + "DW_ATE = 0x%x, bit_size = %u\n", + type_name, dw_ate, bit_size); + } else { + Host::SystemLog(Host::eSystemLogError, "error: need to add support for " + "DW_TAG_base_type encoded with " + "DW_ATE = 0x%x, bit_size = %u\n", + dw_ate, bit_size); + } + return CompilerType(); +} + +CompilerType ClangASTContext::GetUnknownAnyType(clang::ASTContext *ast) { + if (ast) + return CompilerType(ClangASTContext::GetASTContext(ast), + ast->UnknownAnyTy.getAsOpaquePtr()); + return CompilerType(); +} + +CompilerType ClangASTContext::GetCStringType(bool is_const) { + ASTContext *ast = getASTContext(); + QualType char_type(ast->CharTy); + + if (is_const) + char_type.addConst(); + + return CompilerType(this, ast->getPointerType(char_type).getAsOpaquePtr()); +} + +clang::DeclContext * +ClangASTContext::GetTranslationUnitDecl(clang::ASTContext *ast) { + return ast->getTranslationUnitDecl(); +} + +clang::Decl *ClangASTContext::CopyDecl(ASTContext *dst_ast, ASTContext *src_ast, + clang::Decl *source_decl) { + FileSystemOptions file_system_options; + FileManager file_manager(file_system_options); + ASTImporter importer(*dst_ast, file_manager, *src_ast, file_manager, false); + + if (llvm::Expected<clang::Decl *> ret_or_error = + importer.Import(source_decl)) { + return *ret_or_error; + } else { + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS); + LLDB_LOG_ERROR(log, ret_or_error.takeError(), "Couldn't import decl: {0}"); + return nullptr; + } +} + +bool ClangASTContext::AreTypesSame(CompilerType type1, CompilerType type2, + bool ignore_qualifiers) { + ClangASTContext *ast = + llvm::dyn_cast_or_null<ClangASTContext>(type1.GetTypeSystem()); + if (!ast || ast != type2.GetTypeSystem()) + return false; + + if (type1.GetOpaqueQualType() == type2.GetOpaqueQualType()) + return true; + + QualType type1_qual = ClangUtil::GetQualType(type1); + QualType type2_qual = ClangUtil::GetQualType(type2); + + if (ignore_qualifiers) { + type1_qual = type1_qual.getUnqualifiedType(); + type2_qual = type2_qual.getUnqualifiedType(); + } + + return ast->getASTContext()->hasSameType(type1_qual, type2_qual); +} + +CompilerType ClangASTContext::GetTypeForDecl(void *opaque_decl) { + if (!opaque_decl) + return CompilerType(); + + clang::Decl *decl = static_cast<clang::Decl *>(opaque_decl); + if (auto *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl)) + return GetTypeForDecl(named_decl); + return CompilerType(); +} + +CompilerType ClangASTContext::GetTypeForDecl(clang::NamedDecl *decl) { + if (clang::ObjCInterfaceDecl *interface_decl = + llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) + return GetTypeForDecl(interface_decl); + if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) + return GetTypeForDecl(tag_decl); + return CompilerType(); +} + +CompilerType ClangASTContext::GetTypeForDecl(TagDecl *decl) { + // No need to call the getASTContext() accessor (which can create the AST if + // it isn't created yet, because we can't have created a decl in this + // AST if our AST didn't already exist... + ASTContext *ast = &decl->getASTContext(); + if (ast) + return CompilerType(ClangASTContext::GetASTContext(ast), + ast->getTagDeclType(decl).getAsOpaquePtr()); + return CompilerType(); +} + +CompilerType ClangASTContext::GetTypeForDecl(ObjCInterfaceDecl *decl) { + // No need to call the getASTContext() accessor (which can create the AST if + // it isn't created yet, because we can't have created a decl in this + // AST if our AST didn't already exist... + ASTContext *ast = &decl->getASTContext(); + if (ast) + return CompilerType(ClangASTContext::GetASTContext(ast), + ast->getObjCInterfaceType(decl).getAsOpaquePtr()); + return CompilerType(); +} + +#pragma mark Structure, Unions, Classes + +CompilerType ClangASTContext::CreateRecordType(DeclContext *decl_ctx, + AccessType access_type, + const char *name, int kind, + LanguageType language, + ClangASTMetadata *metadata) { + ASTContext *ast = getASTContext(); + assert(ast != nullptr); + + if (decl_ctx == nullptr) + decl_ctx = ast->getTranslationUnitDecl(); + + if (language == eLanguageTypeObjC || + language == eLanguageTypeObjC_plus_plus) { + bool isForwardDecl = true; + bool isInternal = false; + return CreateObjCClass(name, decl_ctx, isForwardDecl, isInternal, metadata); + } + + // NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and + // we will need to update this code. I was told to currently always use the + // CXXRecordDecl class since we often don't know from debug information if + // something is struct or a class, so we default to always use the more + // complete definition just in case. + + bool has_name = name && name[0]; + + CXXRecordDecl *decl = CXXRecordDecl::Create( + *ast, (TagDecl::TagKind)kind, decl_ctx, SourceLocation(), + SourceLocation(), has_name ? &ast->Idents.get(name) : nullptr); + + if (!has_name) { + // In C++ a lambda is also represented as an unnamed class. This is + // different from an *anonymous class* that the user wrote: + // + // struct A { + // // anonymous class (GNU/MSVC extension) + // struct { + // int x; + // }; + // // unnamed class within a class + // struct { + // int y; + // } B; + // }; + // + // void f() { + // // unammed class outside of a class + // struct { + // int z; + // } C; + // } + // + // Anonymous classes is a GNU/MSVC extension that clang supports. It + // requires the anonymous class be embedded within a class. So the new + // heuristic verifies this condition. + // + // FIXME: An unnamed class within a class is also wrongly recognized as an + // anonymous struct. + if (isa<CXXRecordDecl>(decl_ctx)) + decl->setAnonymousStructOrUnion(true); + } + + if (decl) { + if (metadata) + SetMetadata(ast, decl, *metadata); + + if (access_type != eAccessNone) + decl->setAccess(ConvertAccessTypeToAccessSpecifier(access_type)); + + if (decl_ctx) + decl_ctx->addDecl(decl); + + return CompilerType(this, ast->getTagDeclType(decl).getAsOpaquePtr()); + } + return CompilerType(); +} + +namespace { + bool IsValueParam(const clang::TemplateArgument &argument) { + return argument.getKind() == TemplateArgument::Integral; + } +} + +static TemplateParameterList *CreateTemplateParameterList( + ASTContext *ast, + const ClangASTContext::TemplateParameterInfos &template_param_infos, + llvm::SmallVector<NamedDecl *, 8> &template_param_decls) { + const bool parameter_pack = false; + const bool is_typename = false; + const unsigned depth = 0; + const size_t num_template_params = template_param_infos.args.size(); + DeclContext *const decl_context = + ast->getTranslationUnitDecl(); // Is this the right decl context?, + for (size_t i = 0; i < num_template_params; ++i) { + const char *name = template_param_infos.names[i]; + + IdentifierInfo *identifier_info = nullptr; + if (name && name[0]) + identifier_info = &ast->Idents.get(name); + if (IsValueParam(template_param_infos.args[i])) { + template_param_decls.push_back(NonTypeTemplateParmDecl::Create( + *ast, decl_context, + SourceLocation(), SourceLocation(), depth, i, identifier_info, + template_param_infos.args[i].getIntegralType(), parameter_pack, + nullptr)); + + } else { + template_param_decls.push_back(TemplateTypeParmDecl::Create( + *ast, decl_context, + SourceLocation(), SourceLocation(), depth, i, identifier_info, + is_typename, parameter_pack)); + } + } + + if (template_param_infos.packed_args) { + IdentifierInfo *identifier_info = nullptr; + if (template_param_infos.pack_name && template_param_infos.pack_name[0]) + identifier_info = &ast->Idents.get(template_param_infos.pack_name); + const bool parameter_pack_true = true; + + if (!template_param_infos.packed_args->args.empty() && + IsValueParam(template_param_infos.packed_args->args[0])) { + template_param_decls.push_back(NonTypeTemplateParmDecl::Create( + *ast, decl_context, SourceLocation(), SourceLocation(), depth, + num_template_params, identifier_info, + template_param_infos.packed_args->args[0].getIntegralType(), + parameter_pack_true, nullptr)); + } else { + template_param_decls.push_back(TemplateTypeParmDecl::Create( + *ast, decl_context, SourceLocation(), SourceLocation(), depth, + num_template_params, identifier_info, is_typename, + parameter_pack_true)); + } + } + clang::Expr *const requires_clause = nullptr; // TODO: Concepts + TemplateParameterList *template_param_list = TemplateParameterList::Create( + *ast, SourceLocation(), SourceLocation(), template_param_decls, + SourceLocation(), requires_clause); + return template_param_list; +} + +clang::FunctionTemplateDecl *ClangASTContext::CreateFunctionTemplateDecl( + clang::DeclContext *decl_ctx, clang::FunctionDecl *func_decl, + const char *name, const TemplateParameterInfos &template_param_infos) { + // /// Create a function template node. + ASTContext *ast = getASTContext(); + + llvm::SmallVector<NamedDecl *, 8> template_param_decls; + + TemplateParameterList *template_param_list = CreateTemplateParameterList( + ast, template_param_infos, template_param_decls); + FunctionTemplateDecl *func_tmpl_decl = FunctionTemplateDecl::Create( + *ast, decl_ctx, func_decl->getLocation(), func_decl->getDeclName(), + template_param_list, func_decl); + + for (size_t i = 0, template_param_decl_count = template_param_decls.size(); + i < template_param_decl_count; ++i) { + // TODO: verify which decl context we should put template_param_decls into.. + template_param_decls[i]->setDeclContext(func_decl); + } + + return func_tmpl_decl; +} + +void ClangASTContext::CreateFunctionTemplateSpecializationInfo( + FunctionDecl *func_decl, clang::FunctionTemplateDecl *func_tmpl_decl, + const TemplateParameterInfos &infos) { + TemplateArgumentList *template_args_ptr = + TemplateArgumentList::CreateCopy(func_decl->getASTContext(), infos.args); + + func_decl->setFunctionTemplateSpecialization(func_tmpl_decl, + template_args_ptr, nullptr); +} + +ClassTemplateDecl *ClangASTContext::CreateClassTemplateDecl( + DeclContext *decl_ctx, lldb::AccessType access_type, const char *class_name, + int kind, const TemplateParameterInfos &template_param_infos) { + ASTContext *ast = getASTContext(); + + ClassTemplateDecl *class_template_decl = nullptr; + if (decl_ctx == nullptr) + decl_ctx = ast->getTranslationUnitDecl(); + + IdentifierInfo &identifier_info = ast->Idents.get(class_name); + DeclarationName decl_name(&identifier_info); + + clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name); + + for (NamedDecl *decl : result) { + class_template_decl = dyn_cast<clang::ClassTemplateDecl>(decl); + if (class_template_decl) + return class_template_decl; + } + + llvm::SmallVector<NamedDecl *, 8> template_param_decls; + + TemplateParameterList *template_param_list = CreateTemplateParameterList( + ast, template_param_infos, template_param_decls); + + CXXRecordDecl *template_cxx_decl = CXXRecordDecl::Create( + *ast, (TagDecl::TagKind)kind, + decl_ctx, // What decl context do we use here? TU? The actual decl + // context? + SourceLocation(), SourceLocation(), &identifier_info); + + for (size_t i = 0, template_param_decl_count = template_param_decls.size(); + i < template_param_decl_count; ++i) { + template_param_decls[i]->setDeclContext(template_cxx_decl); + } + + // With templated classes, we say that a class is templated with + // specializations, but that the bare class has no functions. + // template_cxx_decl->startDefinition(); + // template_cxx_decl->completeDefinition(); + + class_template_decl = ClassTemplateDecl::Create( + *ast, + decl_ctx, // What decl context do we use here? TU? The actual decl + // context? + SourceLocation(), decl_name, template_param_list, template_cxx_decl); + template_cxx_decl->setDescribedClassTemplate(class_template_decl); + + if (class_template_decl) { + if (access_type != eAccessNone) + class_template_decl->setAccess( + ConvertAccessTypeToAccessSpecifier(access_type)); + + // if (TagDecl *ctx_tag_decl = dyn_cast<TagDecl>(decl_ctx)) + // CompleteTagDeclarationDefinition(GetTypeForDecl(ctx_tag_decl)); + + decl_ctx->addDecl(class_template_decl); + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(class_template_decl); +#endif + } + + return class_template_decl; +} + +TemplateTemplateParmDecl * +ClangASTContext::CreateTemplateTemplateParmDecl(const char *template_name) { + ASTContext *ast = getASTContext(); + + auto *decl_ctx = ast->getTranslationUnitDecl(); + + IdentifierInfo &identifier_info = ast->Idents.get(template_name); + llvm::SmallVector<NamedDecl *, 8> template_param_decls; + + ClangASTContext::TemplateParameterInfos template_param_infos; + TemplateParameterList *template_param_list = CreateTemplateParameterList( + ast, template_param_infos, template_param_decls); + + // LLDB needs to create those decls only to be able to display a + // type that includes a template template argument. Only the name matters for + // this purpose, so we use dummy values for the other characterisitcs of the + // type. + return TemplateTemplateParmDecl::Create( + *ast, decl_ctx, SourceLocation(), + /*Depth*/ 0, /*Position*/ 0, + /*IsParameterPack*/ false, &identifier_info, template_param_list); +} + +ClassTemplateSpecializationDecl * +ClangASTContext::CreateClassTemplateSpecializationDecl( + DeclContext *decl_ctx, ClassTemplateDecl *class_template_decl, int kind, + const TemplateParameterInfos &template_param_infos) { + ASTContext *ast = getASTContext(); + llvm::SmallVector<clang::TemplateArgument, 2> args( + template_param_infos.args.size() + + (template_param_infos.packed_args ? 1 : 0)); + std::copy(template_param_infos.args.begin(), template_param_infos.args.end(), + args.begin()); + if (template_param_infos.packed_args) { + args[args.size() - 1] = TemplateArgument::CreatePackCopy( + *ast, template_param_infos.packed_args->args); + } + ClassTemplateSpecializationDecl *class_template_specialization_decl = + ClassTemplateSpecializationDecl::Create( + *ast, (TagDecl::TagKind)kind, decl_ctx, SourceLocation(), + SourceLocation(), class_template_decl, args, + nullptr); + + class_template_specialization_decl->setSpecializationKind( + TSK_ExplicitSpecialization); + + return class_template_specialization_decl; +} + +CompilerType ClangASTContext::CreateClassTemplateSpecializationType( + ClassTemplateSpecializationDecl *class_template_specialization_decl) { + if (class_template_specialization_decl) { + ASTContext *ast = getASTContext(); + if (ast) + return CompilerType( + this, ast->getTagDeclType(class_template_specialization_decl) + .getAsOpaquePtr()); + } + return CompilerType(); +} + +static inline bool check_op_param(bool is_method, + clang::OverloadedOperatorKind op_kind, + bool unary, bool binary, + uint32_t num_params) { + // Special-case call since it can take any number of operands + if (op_kind == OO_Call) + return true; + + // The parameter count doesn't include "this" + if (is_method) + ++num_params; + if (num_params == 1) + return unary; + if (num_params == 2) + return binary; + else + return false; +} + +bool ClangASTContext::CheckOverloadedOperatorKindParameterCount( + bool is_method, clang::OverloadedOperatorKind op_kind, + uint32_t num_params) { + switch (op_kind) { + default: + break; + // C++ standard allows any number of arguments to new/delete + case OO_New: + case OO_Array_New: + case OO_Delete: + case OO_Array_Delete: + return true; + } + +#define OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly) \ + case OO_##Name: \ + return check_op_param(is_method, op_kind, Unary, Binary, num_params); + switch (op_kind) { +#include "clang/Basic/OperatorKinds.def" + default: + break; + } + return false; +} + +clang::AccessSpecifier +ClangASTContext::UnifyAccessSpecifiers(clang::AccessSpecifier lhs, + clang::AccessSpecifier rhs) { + // Make the access equal to the stricter of the field and the nested field's + // access + if (lhs == AS_none || rhs == AS_none) + return AS_none; + if (lhs == AS_private || rhs == AS_private) + return AS_private; + if (lhs == AS_protected || rhs == AS_protected) + return AS_protected; + return AS_public; +} + +bool ClangASTContext::FieldIsBitfield(FieldDecl *field, + uint32_t &bitfield_bit_size) { + return FieldIsBitfield(getASTContext(), field, bitfield_bit_size); +} + +bool ClangASTContext::FieldIsBitfield(ASTContext *ast, FieldDecl *field, + uint32_t &bitfield_bit_size) { + if (ast == nullptr || field == nullptr) + return false; + + if (field->isBitField()) { + Expr *bit_width_expr = field->getBitWidth(); + if (bit_width_expr) { + llvm::APSInt bit_width_apsint; + if (bit_width_expr->isIntegerConstantExpr(bit_width_apsint, *ast)) { + bitfield_bit_size = bit_width_apsint.getLimitedValue(UINT32_MAX); + return true; + } + } + } + return false; +} + +bool ClangASTContext::RecordHasFields(const RecordDecl *record_decl) { + if (record_decl == nullptr) + return false; + + if (!record_decl->field_empty()) + return true; + + // No fields, lets check this is a CXX record and check the base classes + const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl); + if (cxx_record_decl) { + CXXRecordDecl::base_class_const_iterator base_class, base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class) { + const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>( + base_class->getType()->getAs<RecordType>()->getDecl()); + if (RecordHasFields(base_class_decl)) + return true; + } + } + return false; +} + +#pragma mark Objective-C Classes + +CompilerType ClangASTContext::CreateObjCClass(const char *name, + DeclContext *decl_ctx, + bool isForwardDecl, + bool isInternal, + ClangASTMetadata *metadata) { + ASTContext *ast = getASTContext(); + assert(ast != nullptr); + assert(name && name[0]); + if (decl_ctx == nullptr) + decl_ctx = ast->getTranslationUnitDecl(); + + ObjCInterfaceDecl *decl = ObjCInterfaceDecl::Create( + *ast, decl_ctx, SourceLocation(), &ast->Idents.get(name), nullptr, + nullptr, SourceLocation(), + /*isForwardDecl,*/ + isInternal); + + if (decl && metadata) + SetMetadata(ast, decl, *metadata); + + return CompilerType(this, ast->getObjCInterfaceType(decl).getAsOpaquePtr()); +} + +static inline bool BaseSpecifierIsEmpty(const CXXBaseSpecifier *b) { + return !ClangASTContext::RecordHasFields(b->getType()->getAsCXXRecordDecl()); +} + +uint32_t +ClangASTContext::GetNumBaseClasses(const CXXRecordDecl *cxx_record_decl, + bool omit_empty_base_classes) { + uint32_t num_bases = 0; + if (cxx_record_decl) { + if (omit_empty_base_classes) { + CXXRecordDecl::base_class_const_iterator base_class, base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class) { + // Skip empty base classes + if (omit_empty_base_classes) { + if (BaseSpecifierIsEmpty(base_class)) + continue; + } + ++num_bases; + } + } else + num_bases = cxx_record_decl->getNumBases(); + } + return num_bases; +} + +#pragma mark Namespace Declarations + +NamespaceDecl *ClangASTContext::GetUniqueNamespaceDeclaration( + const char *name, DeclContext *decl_ctx, bool is_inline) { + NamespaceDecl *namespace_decl = nullptr; + ASTContext *ast = getASTContext(); + TranslationUnitDecl *translation_unit_decl = ast->getTranslationUnitDecl(); + if (decl_ctx == nullptr) + decl_ctx = translation_unit_decl; + + if (name) { + IdentifierInfo &identifier_info = ast->Idents.get(name); + DeclarationName decl_name(&identifier_info); + clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name); + for (NamedDecl *decl : result) { + namespace_decl = dyn_cast<clang::NamespaceDecl>(decl); + if (namespace_decl) + return namespace_decl; + } + + namespace_decl = + NamespaceDecl::Create(*ast, decl_ctx, is_inline, SourceLocation(), + SourceLocation(), &identifier_info, nullptr); + + decl_ctx->addDecl(namespace_decl); + } else { + if (decl_ctx == translation_unit_decl) { + namespace_decl = translation_unit_decl->getAnonymousNamespace(); + if (namespace_decl) + return namespace_decl; + + namespace_decl = + NamespaceDecl::Create(*ast, decl_ctx, false, SourceLocation(), + SourceLocation(), nullptr, nullptr); + translation_unit_decl->setAnonymousNamespace(namespace_decl); + translation_unit_decl->addDecl(namespace_decl); + assert(namespace_decl == translation_unit_decl->getAnonymousNamespace()); + } else { + NamespaceDecl *parent_namespace_decl = cast<NamespaceDecl>(decl_ctx); + if (parent_namespace_decl) { + namespace_decl = parent_namespace_decl->getAnonymousNamespace(); + if (namespace_decl) + return namespace_decl; + namespace_decl = + NamespaceDecl::Create(*ast, decl_ctx, false, SourceLocation(), + SourceLocation(), nullptr, nullptr); + parent_namespace_decl->setAnonymousNamespace(namespace_decl); + parent_namespace_decl->addDecl(namespace_decl); + assert(namespace_decl == + parent_namespace_decl->getAnonymousNamespace()); + } else { + assert(false && "GetUniqueNamespaceDeclaration called with no name and " + "no namespace as decl_ctx"); + } + } + } +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(namespace_decl); +#endif + return namespace_decl; +} + +NamespaceDecl *ClangASTContext::GetUniqueNamespaceDeclaration( + clang::ASTContext *ast, const char *name, clang::DeclContext *decl_ctx, + bool is_inline) { + ClangASTContext *ast_ctx = ClangASTContext::GetASTContext(ast); + if (ast_ctx == nullptr) + return nullptr; + + return ast_ctx->GetUniqueNamespaceDeclaration(name, decl_ctx, is_inline); +} + +clang::BlockDecl * +ClangASTContext::CreateBlockDeclaration(clang::DeclContext *ctx) { + if (ctx != nullptr) { + clang::BlockDecl *decl = clang::BlockDecl::Create(*getASTContext(), ctx, + clang::SourceLocation()); + ctx->addDecl(decl); + return decl; + } + return nullptr; +} + +clang::DeclContext *FindLCABetweenDecls(clang::DeclContext *left, + clang::DeclContext *right, + clang::DeclContext *root) { + if (root == nullptr) + return nullptr; + + std::set<clang::DeclContext *> path_left; + for (clang::DeclContext *d = left; d != nullptr; d = d->getParent()) + path_left.insert(d); + + for (clang::DeclContext *d = right; d != nullptr; d = d->getParent()) + if (path_left.find(d) != path_left.end()) + return d; + + return nullptr; +} + +clang::UsingDirectiveDecl *ClangASTContext::CreateUsingDirectiveDeclaration( + clang::DeclContext *decl_ctx, clang::NamespaceDecl *ns_decl) { + if (decl_ctx != nullptr && ns_decl != nullptr) { + clang::TranslationUnitDecl *translation_unit = + (clang::TranslationUnitDecl *)GetTranslationUnitDecl(getASTContext()); + clang::UsingDirectiveDecl *using_decl = clang::UsingDirectiveDecl::Create( + *getASTContext(), decl_ctx, clang::SourceLocation(), + clang::SourceLocation(), clang::NestedNameSpecifierLoc(), + clang::SourceLocation(), ns_decl, + FindLCABetweenDecls(decl_ctx, ns_decl, translation_unit)); + decl_ctx->addDecl(using_decl); + return using_decl; + } + return nullptr; +} + +clang::UsingDecl * +ClangASTContext::CreateUsingDeclaration(clang::DeclContext *current_decl_ctx, + clang::NamedDecl *target) { + if (current_decl_ctx != nullptr && target != nullptr) { + clang::UsingDecl *using_decl = clang::UsingDecl::Create( + *getASTContext(), current_decl_ctx, clang::SourceLocation(), + clang::NestedNameSpecifierLoc(), clang::DeclarationNameInfo(), false); + clang::UsingShadowDecl *shadow_decl = clang::UsingShadowDecl::Create( + *getASTContext(), current_decl_ctx, clang::SourceLocation(), using_decl, + target); + using_decl->addShadowDecl(shadow_decl); + current_decl_ctx->addDecl(using_decl); + return using_decl; + } + return nullptr; +} + +clang::VarDecl *ClangASTContext::CreateVariableDeclaration( + clang::DeclContext *decl_context, const char *name, clang::QualType type) { + if (decl_context != nullptr) { + clang::VarDecl *var_decl = clang::VarDecl::Create( + *getASTContext(), decl_context, clang::SourceLocation(), + clang::SourceLocation(), + name && name[0] ? &getASTContext()->Idents.getOwn(name) : nullptr, type, + nullptr, clang::SC_None); + var_decl->setAccess(clang::AS_public); + decl_context->addDecl(var_decl); + return var_decl; + } + return nullptr; +} + +lldb::opaque_compiler_type_t +ClangASTContext::GetOpaqueCompilerType(clang::ASTContext *ast, + lldb::BasicType basic_type) { + switch (basic_type) { + case eBasicTypeVoid: + return ast->VoidTy.getAsOpaquePtr(); + case eBasicTypeChar: + return ast->CharTy.getAsOpaquePtr(); + case eBasicTypeSignedChar: + return ast->SignedCharTy.getAsOpaquePtr(); + case eBasicTypeUnsignedChar: + return ast->UnsignedCharTy.getAsOpaquePtr(); + case eBasicTypeWChar: + return ast->getWCharType().getAsOpaquePtr(); + case eBasicTypeSignedWChar: + return ast->getSignedWCharType().getAsOpaquePtr(); + case eBasicTypeUnsignedWChar: + return ast->getUnsignedWCharType().getAsOpaquePtr(); + case eBasicTypeChar16: + return ast->Char16Ty.getAsOpaquePtr(); + case eBasicTypeChar32: + return ast->Char32Ty.getAsOpaquePtr(); + case eBasicTypeShort: + return ast->ShortTy.getAsOpaquePtr(); + case eBasicTypeUnsignedShort: + return ast->UnsignedShortTy.getAsOpaquePtr(); + case eBasicTypeInt: + return ast->IntTy.getAsOpaquePtr(); + case eBasicTypeUnsignedInt: + return ast->UnsignedIntTy.getAsOpaquePtr(); + case eBasicTypeLong: + return ast->LongTy.getAsOpaquePtr(); + case eBasicTypeUnsignedLong: + return ast->UnsignedLongTy.getAsOpaquePtr(); + case eBasicTypeLongLong: + return ast->LongLongTy.getAsOpaquePtr(); + case eBasicTypeUnsignedLongLong: + return ast->UnsignedLongLongTy.getAsOpaquePtr(); + case eBasicTypeInt128: + return ast->Int128Ty.getAsOpaquePtr(); + case eBasicTypeUnsignedInt128: + return ast->UnsignedInt128Ty.getAsOpaquePtr(); + case eBasicTypeBool: + return ast->BoolTy.getAsOpaquePtr(); + case eBasicTypeHalf: + return ast->HalfTy.getAsOpaquePtr(); + case eBasicTypeFloat: + return ast->FloatTy.getAsOpaquePtr(); + case eBasicTypeDouble: + return ast->DoubleTy.getAsOpaquePtr(); + case eBasicTypeLongDouble: + return ast->LongDoubleTy.getAsOpaquePtr(); + case eBasicTypeFloatComplex: + return ast->FloatComplexTy.getAsOpaquePtr(); + case eBasicTypeDoubleComplex: + return ast->DoubleComplexTy.getAsOpaquePtr(); + case eBasicTypeLongDoubleComplex: + return ast->LongDoubleComplexTy.getAsOpaquePtr(); + case eBasicTypeObjCID: + return ast->getObjCIdType().getAsOpaquePtr(); + case eBasicTypeObjCClass: + return ast->getObjCClassType().getAsOpaquePtr(); + case eBasicTypeObjCSel: + return ast->getObjCSelType().getAsOpaquePtr(); + case eBasicTypeNullPtr: + return ast->NullPtrTy.getAsOpaquePtr(); + default: + return nullptr; + } +} + +#pragma mark Function Types + +clang::DeclarationName +ClangASTContext::GetDeclarationName(const char *name, + const CompilerType &function_clang_type) { + if (!name || !name[0]) + return clang::DeclarationName(); + + clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS; + if (!IsOperator(name, op_kind) || op_kind == clang::NUM_OVERLOADED_OPERATORS) + return DeclarationName(&getASTContext()->Idents.get( + name)); // Not operator, but a regular function. + + // Check the number of operator parameters. Sometimes we have seen bad DWARF + // that doesn't correctly describe operators and if we try to create a method + // and add it to the class, clang will assert and crash, so we need to make + // sure things are acceptable. + clang::QualType method_qual_type(ClangUtil::GetQualType(function_clang_type)); + const clang::FunctionProtoType *function_type = + llvm::dyn_cast<clang::FunctionProtoType>(method_qual_type.getTypePtr()); + if (function_type == nullptr) + return clang::DeclarationName(); + + const bool is_method = false; + const unsigned int num_params = function_type->getNumParams(); + if (!ClangASTContext::CheckOverloadedOperatorKindParameterCount( + is_method, op_kind, num_params)) + return clang::DeclarationName(); + + return getASTContext()->DeclarationNames.getCXXOperatorName(op_kind); +} + +FunctionDecl *ClangASTContext::CreateFunctionDeclaration( + DeclContext *decl_ctx, const char *name, + const CompilerType &function_clang_type, int storage, bool is_inline) { + FunctionDecl *func_decl = nullptr; + ASTContext *ast = getASTContext(); + if (decl_ctx == nullptr) + decl_ctx = ast->getTranslationUnitDecl(); + + const bool hasWrittenPrototype = true; + const bool isConstexprSpecified = false; + + clang::DeclarationName declarationName = + GetDeclarationName(name, function_clang_type); + func_decl = FunctionDecl::Create( + *ast, decl_ctx, SourceLocation(), SourceLocation(), declarationName, + ClangUtil::GetQualType(function_clang_type), nullptr, + (clang::StorageClass)storage, is_inline, hasWrittenPrototype, + isConstexprSpecified ? CSK_constexpr : CSK_unspecified); + if (func_decl) + decl_ctx->addDecl(func_decl); + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(func_decl); +#endif + + return func_decl; +} + +CompilerType ClangASTContext::CreateFunctionType( + ASTContext *ast, const CompilerType &result_type, const CompilerType *args, + unsigned num_args, bool is_variadic, unsigned type_quals, + clang::CallingConv cc) { + if (ast == nullptr) + return CompilerType(); // invalid AST + + if (!result_type || !ClangUtil::IsClangType(result_type)) + return CompilerType(); // invalid return type + + std::vector<QualType> qual_type_args; + if (num_args > 0 && args == nullptr) + return CompilerType(); // invalid argument array passed in + + // Verify that all arguments are valid and the right type + for (unsigned i = 0; i < num_args; ++i) { + if (args[i]) { + // Make sure we have a clang type in args[i] and not a type from another + // language whose name might match + const bool is_clang_type = ClangUtil::IsClangType(args[i]); + lldbassert(is_clang_type); + if (is_clang_type) + qual_type_args.push_back(ClangUtil::GetQualType(args[i])); + else + return CompilerType(); // invalid argument type (must be a clang type) + } else + return CompilerType(); // invalid argument type (empty) + } + + // TODO: Detect calling convention in DWARF? + FunctionProtoType::ExtProtoInfo proto_info; + proto_info.ExtInfo = cc; + proto_info.Variadic = is_variadic; + proto_info.ExceptionSpec = EST_None; + proto_info.TypeQuals = clang::Qualifiers::fromFastMask(type_quals); + proto_info.RefQualifier = RQ_None; + + return CompilerType(ClangASTContext::GetASTContext(ast), + ast->getFunctionType(ClangUtil::GetQualType(result_type), + qual_type_args, proto_info).getAsOpaquePtr()); +} + +ParmVarDecl *ClangASTContext::CreateParameterDeclaration( + clang::DeclContext *decl_ctx, const char *name, + const CompilerType ¶m_type, int storage, bool add_decl) { + ASTContext *ast = getASTContext(); + assert(ast != nullptr); + auto *decl = + ParmVarDecl::Create(*ast, decl_ctx, SourceLocation(), SourceLocation(), + name && name[0] ? &ast->Idents.get(name) : nullptr, + ClangUtil::GetQualType(param_type), nullptr, + (clang::StorageClass)storage, nullptr); + if (add_decl) + decl_ctx->addDecl(decl); + + return decl; +} + +void ClangASTContext::SetFunctionParameters(FunctionDecl *function_decl, + ParmVarDecl **params, + unsigned num_params) { + if (function_decl) + function_decl->setParams(ArrayRef<ParmVarDecl *>(params, num_params)); +} + +CompilerType +ClangASTContext::CreateBlockPointerType(const CompilerType &function_type) { + QualType block_type = m_ast_up->getBlockPointerType( + clang::QualType::getFromOpaquePtr(function_type.GetOpaqueQualType())); + + return CompilerType(this, block_type.getAsOpaquePtr()); +} + +#pragma mark Array Types + +CompilerType ClangASTContext::CreateArrayType(const CompilerType &element_type, + size_t element_count, + bool is_vector) { + if (element_type.IsValid()) { + ASTContext *ast = getASTContext(); + assert(ast != nullptr); + + if (is_vector) { + return CompilerType( + this, ast->getExtVectorType(ClangUtil::GetQualType(element_type), + element_count) + .getAsOpaquePtr()); + } else { + + llvm::APInt ap_element_count(64, element_count); + if (element_count == 0) { + return CompilerType(this, ast->getIncompleteArrayType( + ClangUtil::GetQualType(element_type), + clang::ArrayType::Normal, 0) + .getAsOpaquePtr()); + } else { + return CompilerType(this, ast->getConstantArrayType( + ClangUtil::GetQualType(element_type), + ap_element_count, nullptr, + clang::ArrayType::Normal, 0) + .getAsOpaquePtr()); + } + } + } + return CompilerType(); +} + +CompilerType ClangASTContext::CreateStructForIdentifier( + ConstString type_name, + const std::initializer_list<std::pair<const char *, CompilerType>> + &type_fields, + bool packed) { + CompilerType type; + if (!type_name.IsEmpty() && + (type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)) + .IsValid()) { + lldbassert(0 && "Trying to create a type for an existing name"); + return type; + } + + type = CreateRecordType(nullptr, lldb::eAccessPublic, type_name.GetCString(), + clang::TTK_Struct, lldb::eLanguageTypeC); + StartTagDeclarationDefinition(type); + for (const auto &field : type_fields) + AddFieldToRecordType(type, field.first, field.second, lldb::eAccessPublic, + 0); + if (packed) + SetIsPacked(type); + CompleteTagDeclarationDefinition(type); + return type; +} + +CompilerType ClangASTContext::GetOrCreateStructForIdentifier( + ConstString type_name, + const std::initializer_list<std::pair<const char *, CompilerType>> + &type_fields, + bool packed) { + CompilerType type; + if ((type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)).IsValid()) + return type; + + return CreateStructForIdentifier(type_name, type_fields, packed); +} + +#pragma mark Enumeration Types + +CompilerType +ClangASTContext::CreateEnumerationType(const char *name, DeclContext *decl_ctx, + const Declaration &decl, + const CompilerType &integer_clang_type, + bool is_scoped) { + // TODO: Do something intelligent with the Declaration object passed in + // like maybe filling in the SourceLocation with it... + ASTContext *ast = getASTContext(); + + // TODO: ask about these... + // const bool IsFixed = false; + + EnumDecl *enum_decl = EnumDecl::Create( + *ast, decl_ctx, SourceLocation(), SourceLocation(), + name && name[0] ? &ast->Idents.get(name) : nullptr, nullptr, + is_scoped, // IsScoped + is_scoped, // IsScopedUsingClassTag + false); // IsFixed + + if (enum_decl) { + if (decl_ctx) + decl_ctx->addDecl(enum_decl); + + // TODO: check if we should be setting the promotion type too? + enum_decl->setIntegerType(ClangUtil::GetQualType(integer_clang_type)); + + enum_decl->setAccess(AS_public); // TODO respect what's in the debug info + + return CompilerType(this, ast->getTagDeclType(enum_decl).getAsOpaquePtr()); + } + return CompilerType(); +} + +CompilerType ClangASTContext::GetIntTypeFromBitSize(clang::ASTContext *ast, + size_t bit_size, + bool is_signed) { + if (ast) { + auto *clang_ast_context = ClangASTContext::GetASTContext(ast); + if (is_signed) { + if (bit_size == ast->getTypeSize(ast->SignedCharTy)) + return CompilerType(clang_ast_context, + ast->SignedCharTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->ShortTy)) + return CompilerType(clang_ast_context, ast->ShortTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->IntTy)) + return CompilerType(clang_ast_context, ast->IntTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->LongTy)) + return CompilerType(clang_ast_context, ast->LongTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->LongLongTy)) + return CompilerType(clang_ast_context, + ast->LongLongTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->Int128Ty)) + return CompilerType(clang_ast_context, ast->Int128Ty.getAsOpaquePtr()); + } else { + if (bit_size == ast->getTypeSize(ast->UnsignedCharTy)) + return CompilerType(clang_ast_context, + ast->UnsignedCharTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->UnsignedShortTy)) + return CompilerType(clang_ast_context, + ast->UnsignedShortTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->UnsignedIntTy)) + return CompilerType(clang_ast_context, + ast->UnsignedIntTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->UnsignedLongTy)) + return CompilerType(clang_ast_context, + ast->UnsignedLongTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->UnsignedLongLongTy)) + return CompilerType(clang_ast_context, + ast->UnsignedLongLongTy.getAsOpaquePtr()); + + if (bit_size == ast->getTypeSize(ast->UnsignedInt128Ty)) + return CompilerType(clang_ast_context, + ast->UnsignedInt128Ty.getAsOpaquePtr()); + } + } + return CompilerType(); +} + +CompilerType ClangASTContext::GetPointerSizedIntType(clang::ASTContext *ast, + bool is_signed) { + if (ast) + return GetIntTypeFromBitSize(ast, ast->getTypeSize(ast->VoidPtrTy), + is_signed); + return CompilerType(); +} + +void ClangASTContext::DumpDeclContextHiearchy(clang::DeclContext *decl_ctx) { + if (decl_ctx) { + DumpDeclContextHiearchy(decl_ctx->getParent()); + + clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl_ctx); + if (named_decl) { + printf("%20s: %s\n", decl_ctx->getDeclKindName(), + named_decl->getDeclName().getAsString().c_str()); + } else { + printf("%20s\n", decl_ctx->getDeclKindName()); + } + } +} + +void ClangASTContext::DumpDeclHiearchy(clang::Decl *decl) { + if (decl == nullptr) + return; + DumpDeclContextHiearchy(decl->getDeclContext()); + + clang::RecordDecl *record_decl = llvm::dyn_cast<clang::RecordDecl>(decl); + if (record_decl) { + printf("%20s: %s%s\n", decl->getDeclKindName(), + record_decl->getDeclName().getAsString().c_str(), + record_decl->isInjectedClassName() ? " (injected class name)" : ""); + + } else { + clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl); + if (named_decl) { + printf("%20s: %s\n", decl->getDeclKindName(), + named_decl->getDeclName().getAsString().c_str()); + } else { + printf("%20s\n", decl->getDeclKindName()); + } + } +} + +bool ClangASTContext::DeclsAreEquivalent(clang::Decl *lhs_decl, + clang::Decl *rhs_decl) { + if (lhs_decl && rhs_decl) { + // Make sure the decl kinds match first + const clang::Decl::Kind lhs_decl_kind = lhs_decl->getKind(); + const clang::Decl::Kind rhs_decl_kind = rhs_decl->getKind(); + + if (lhs_decl_kind == rhs_decl_kind) { + // Now check that the decl contexts kinds are all equivalent before we + // have to check any names of the decl contexts... + clang::DeclContext *lhs_decl_ctx = lhs_decl->getDeclContext(); + clang::DeclContext *rhs_decl_ctx = rhs_decl->getDeclContext(); + if (lhs_decl_ctx && rhs_decl_ctx) { + while (true) { + if (lhs_decl_ctx && rhs_decl_ctx) { + const clang::Decl::Kind lhs_decl_ctx_kind = + lhs_decl_ctx->getDeclKind(); + const clang::Decl::Kind rhs_decl_ctx_kind = + rhs_decl_ctx->getDeclKind(); + if (lhs_decl_ctx_kind == rhs_decl_ctx_kind) { + lhs_decl_ctx = lhs_decl_ctx->getParent(); + rhs_decl_ctx = rhs_decl_ctx->getParent(); + + if (lhs_decl_ctx == nullptr && rhs_decl_ctx == nullptr) + break; + } else + return false; + } else + return false; + } + + // Now make sure the name of the decls match + clang::NamedDecl *lhs_named_decl = + llvm::dyn_cast<clang::NamedDecl>(lhs_decl); + clang::NamedDecl *rhs_named_decl = + llvm::dyn_cast<clang::NamedDecl>(rhs_decl); + if (lhs_named_decl && rhs_named_decl) { + clang::DeclarationName lhs_decl_name = lhs_named_decl->getDeclName(); + clang::DeclarationName rhs_decl_name = rhs_named_decl->getDeclName(); + if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) { + if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString()) + return false; + } else + return false; + } else + return false; + + // We know that the decl context kinds all match, so now we need to + // make sure the names match as well + lhs_decl_ctx = lhs_decl->getDeclContext(); + rhs_decl_ctx = rhs_decl->getDeclContext(); + while (true) { + switch (lhs_decl_ctx->getDeclKind()) { + case clang::Decl::TranslationUnit: + // We don't care about the translation unit names + return true; + default: { + clang::NamedDecl *lhs_named_decl = + llvm::dyn_cast<clang::NamedDecl>(lhs_decl_ctx); + clang::NamedDecl *rhs_named_decl = + llvm::dyn_cast<clang::NamedDecl>(rhs_decl_ctx); + if (lhs_named_decl && rhs_named_decl) { + clang::DeclarationName lhs_decl_name = + lhs_named_decl->getDeclName(); + clang::DeclarationName rhs_decl_name = + rhs_named_decl->getDeclName(); + if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) { + if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString()) + return false; + } else + return false; + } else + return false; + } break; + } + lhs_decl_ctx = lhs_decl_ctx->getParent(); + rhs_decl_ctx = rhs_decl_ctx->getParent(); + } + } + } + } + return false; +} +bool ClangASTContext::GetCompleteDecl(clang::ASTContext *ast, + clang::Decl *decl) { + if (!decl) + return false; + + ExternalASTSource *ast_source = ast->getExternalSource(); + + if (!ast_source) + return false; + + if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) { + if (tag_decl->isCompleteDefinition()) + return true; + + if (!tag_decl->hasExternalLexicalStorage()) + return false; + + ast_source->CompleteType(tag_decl); + + return !tag_decl->getTypeForDecl()->isIncompleteType(); + } else if (clang::ObjCInterfaceDecl *objc_interface_decl = + llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) { + if (objc_interface_decl->getDefinition()) + return true; + + if (!objc_interface_decl->hasExternalLexicalStorage()) + return false; + + ast_source->CompleteType(objc_interface_decl); + + return !objc_interface_decl->getTypeForDecl()->isIncompleteType(); + } else { + return false; + } +} + +void ClangASTContext::SetMetadataAsUserID(const void *object, + user_id_t user_id) { + ClangASTMetadata meta_data; + meta_data.SetUserID(user_id); + SetMetadata(object, meta_data); +} + +void ClangASTContext::SetMetadata(clang::ASTContext *ast, const void *object, + ClangASTMetadata &metadata) { + ClangExternalASTSourceCommon *external_source = + ClangExternalASTSourceCommon::Lookup(ast->getExternalSource()); + + if (external_source) + external_source->SetMetadata(object, metadata); +} + +ClangASTMetadata *ClangASTContext::GetMetadata(clang::ASTContext *ast, + const void *object) { + ClangExternalASTSourceCommon *external_source = + ClangExternalASTSourceCommon::Lookup(ast->getExternalSource()); + + if (external_source && external_source->HasMetadata(object)) + return external_source->GetMetadata(object); + else + return nullptr; +} + +clang::DeclContext * +ClangASTContext::GetAsDeclContext(clang::CXXMethodDecl *cxx_method_decl) { + return llvm::dyn_cast<clang::DeclContext>(cxx_method_decl); +} + +clang::DeclContext * +ClangASTContext::GetAsDeclContext(clang::ObjCMethodDecl *objc_method_decl) { + return llvm::dyn_cast<clang::DeclContext>(objc_method_decl); +} + +bool ClangASTContext::SetTagTypeKind(clang::QualType tag_qual_type, + int kind) const { + const clang::Type *clang_type = tag_qual_type.getTypePtr(); + if (clang_type) { + const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(clang_type); + if (tag_type) { + clang::TagDecl *tag_decl = + llvm::dyn_cast<clang::TagDecl>(tag_type->getDecl()); + if (tag_decl) { + tag_decl->setTagKind((clang::TagDecl::TagKind)kind); + return true; + } + } + } + return false; +} + +bool ClangASTContext::SetDefaultAccessForRecordFields( + clang::RecordDecl *record_decl, int default_accessibility, + int *assigned_accessibilities, size_t num_assigned_accessibilities) { + if (record_decl) { + uint32_t field_idx; + clang::RecordDecl::field_iterator field, field_end; + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(), field_idx = 0; + field != field_end; ++field, ++field_idx) { + // If no accessibility was assigned, assign the correct one + if (field_idx < num_assigned_accessibilities && + assigned_accessibilities[field_idx] == clang::AS_none) + field->setAccess((clang::AccessSpecifier)default_accessibility); + } + return true; + } + return false; +} + +clang::DeclContext * +ClangASTContext::GetDeclContextForType(const CompilerType &type) { + return GetDeclContextForType(ClangUtil::GetQualType(type)); +} + +clang::DeclContext * +ClangASTContext::GetDeclContextForType(clang::QualType type) { + if (type.isNull()) + return nullptr; + + clang::QualType qual_type = type.getCanonicalType(); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::ObjCInterface: + return llvm::cast<clang::ObjCObjectType>(qual_type.getTypePtr()) + ->getInterface(); + case clang::Type::ObjCObjectPointer: + return GetDeclContextForType( + llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) + ->getPointeeType()); + case clang::Type::Record: + return llvm::cast<clang::RecordType>(qual_type)->getDecl(); + case clang::Type::Enum: + return llvm::cast<clang::EnumType>(qual_type)->getDecl(); + case clang::Type::Typedef: + return GetDeclContextForType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType()); + case clang::Type::Auto: + return GetDeclContextForType( + llvm::cast<clang::AutoType>(qual_type)->getDeducedType()); + case clang::Type::Elaborated: + return GetDeclContextForType( + llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType()); + case clang::Type::Paren: + return GetDeclContextForType( + llvm::cast<clang::ParenType>(qual_type)->desugar()); + default: + break; + } + // No DeclContext in this type... + return nullptr; +} + +static bool GetCompleteQualType(clang::ASTContext *ast, + clang::QualType qual_type, + bool allow_completion = true) { + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::ConstantArray: + case clang::Type::IncompleteArray: + case clang::Type::VariableArray: { + const clang::ArrayType *array_type = + llvm::dyn_cast<clang::ArrayType>(qual_type.getTypePtr()); + + if (array_type) + return GetCompleteQualType(ast, array_type->getElementType(), + allow_completion); + } break; + case clang::Type::Record: { + clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + if (cxx_record_decl->hasExternalLexicalStorage()) { + const bool is_complete = cxx_record_decl->isCompleteDefinition(); + const bool fields_loaded = + cxx_record_decl->hasLoadedFieldsFromExternalStorage(); + if (is_complete && fields_loaded) + return true; + + if (!allow_completion) + return false; + + // Call the field_begin() accessor to for it to use the external source + // to load the fields... + clang::ExternalASTSource *external_ast_source = + ast->getExternalSource(); + if (external_ast_source) { + external_ast_source->CompleteType(cxx_record_decl); + if (cxx_record_decl->isCompleteDefinition()) { + cxx_record_decl->field_begin(); + cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true); + } + } + } + } + const clang::TagType *tag_type = + llvm::cast<clang::TagType>(qual_type.getTypePtr()); + return !tag_type->isIncompleteType(); + } break; + + case clang::Type::Enum: { + const clang::TagType *tag_type = + llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()); + if (tag_type) { + clang::TagDecl *tag_decl = tag_type->getDecl(); + if (tag_decl) { + if (tag_decl->getDefinition()) + return true; + + if (!allow_completion) + return false; + + if (tag_decl->hasExternalLexicalStorage()) { + if (ast) { + clang::ExternalASTSource *external_ast_source = + ast->getExternalSource(); + if (external_ast_source) { + external_ast_source->CompleteType(tag_decl); + return !tag_type->isIncompleteType(); + } + } + } + return false; + } + } + + } break; + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + // We currently can't complete objective C types through the newly added + // ASTContext because it only supports TagDecl objects right now... + if (class_interface_decl) { + if (class_interface_decl->getDefinition()) + return true; + + if (!allow_completion) + return false; + + if (class_interface_decl->hasExternalLexicalStorage()) { + if (ast) { + clang::ExternalASTSource *external_ast_source = + ast->getExternalSource(); + if (external_ast_source) { + external_ast_source->CompleteType(class_interface_decl); + return !objc_class_type->isIncompleteType(); + } + } + } + return false; + } + } + } break; + + case clang::Type::Typedef: + return GetCompleteQualType(ast, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType(), + allow_completion); + + case clang::Type::Auto: + return GetCompleteQualType( + ast, llvm::cast<clang::AutoType>(qual_type)->getDeducedType(), + allow_completion); + + case clang::Type::Elaborated: + return GetCompleteQualType( + ast, llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(), + allow_completion); + + case clang::Type::Paren: + return GetCompleteQualType( + ast, llvm::cast<clang::ParenType>(qual_type)->desugar(), + allow_completion); + + case clang::Type::Attributed: + return GetCompleteQualType( + ast, llvm::cast<clang::AttributedType>(qual_type)->getModifiedType(), + allow_completion); + + default: + break; + } + + return true; +} + +static clang::ObjCIvarDecl::AccessControl +ConvertAccessTypeToObjCIvarAccessControl(AccessType access) { + switch (access) { + case eAccessNone: + return clang::ObjCIvarDecl::None; + case eAccessPublic: + return clang::ObjCIvarDecl::Public; + case eAccessPrivate: + return clang::ObjCIvarDecl::Private; + case eAccessProtected: + return clang::ObjCIvarDecl::Protected; + case eAccessPackage: + return clang::ObjCIvarDecl::Package; + } + return clang::ObjCIvarDecl::None; +} + +// Tests + +bool ClangASTContext::IsAggregateType(lldb::opaque_compiler_type_t type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::IncompleteArray: + case clang::Type::VariableArray: + case clang::Type::ConstantArray: + case clang::Type::ExtVector: + case clang::Type::Vector: + case clang::Type::Record: + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + return true; + case clang::Type::Auto: + return IsAggregateType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()); + case clang::Type::Elaborated: + return IsAggregateType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()); + case clang::Type::Typedef: + return IsAggregateType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()); + case clang::Type::Paren: + return IsAggregateType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()); + default: + break; + } + // The clang type does have a value + return false; +} + +bool ClangASTContext::IsAnonymousType(lldb::opaque_compiler_type_t type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: { + if (const clang::RecordType *record_type = + llvm::dyn_cast_or_null<clang::RecordType>( + qual_type.getTypePtrOrNull())) { + if (const clang::RecordDecl *record_decl = record_type->getDecl()) { + return record_decl->isAnonymousStructOrUnion(); + } + } + break; + } + case clang::Type::Auto: + return IsAnonymousType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()); + case clang::Type::Elaborated: + return IsAnonymousType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()); + case clang::Type::Typedef: + return IsAnonymousType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()); + case clang::Type::Paren: + return IsAnonymousType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()); + default: + break; + } + // The clang type does have a value + return false; +} + +bool ClangASTContext::IsArrayType(lldb::opaque_compiler_type_t type, + CompilerType *element_type_ptr, + uint64_t *size, bool *is_incomplete) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + default: + break; + + case clang::Type::ConstantArray: + if (element_type_ptr) + element_type_ptr->SetCompilerType( + this, llvm::cast<clang::ConstantArrayType>(qual_type) + ->getElementType() + .getAsOpaquePtr()); + if (size) + *size = llvm::cast<clang::ConstantArrayType>(qual_type) + ->getSize() + .getLimitedValue(ULLONG_MAX); + if (is_incomplete) + *is_incomplete = false; + return true; + + case clang::Type::IncompleteArray: + if (element_type_ptr) + element_type_ptr->SetCompilerType( + this, llvm::cast<clang::IncompleteArrayType>(qual_type) + ->getElementType() + .getAsOpaquePtr()); + if (size) + *size = 0; + if (is_incomplete) + *is_incomplete = true; + return true; + + case clang::Type::VariableArray: + if (element_type_ptr) + element_type_ptr->SetCompilerType( + this, llvm::cast<clang::VariableArrayType>(qual_type) + ->getElementType() + .getAsOpaquePtr()); + if (size) + *size = 0; + if (is_incomplete) + *is_incomplete = false; + return true; + + case clang::Type::DependentSizedArray: + if (element_type_ptr) + element_type_ptr->SetCompilerType( + this, llvm::cast<clang::DependentSizedArrayType>(qual_type) + ->getElementType() + .getAsOpaquePtr()); + if (size) + *size = 0; + if (is_incomplete) + *is_incomplete = false; + return true; + + case clang::Type::Typedef: + return IsArrayType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + element_type_ptr, size, is_incomplete); + case clang::Type::Auto: + return IsArrayType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + element_type_ptr, size, is_incomplete); + case clang::Type::Elaborated: + return IsArrayType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + element_type_ptr, size, is_incomplete); + case clang::Type::Paren: + return IsArrayType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + element_type_ptr, size, is_incomplete); + } + if (element_type_ptr) + element_type_ptr->Clear(); + if (size) + *size = 0; + if (is_incomplete) + *is_incomplete = false; + return false; +} + +bool ClangASTContext::IsVectorType(lldb::opaque_compiler_type_t type, + CompilerType *element_type, uint64_t *size) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Vector: { + const clang::VectorType *vector_type = + qual_type->getAs<clang::VectorType>(); + if (vector_type) { + if (size) + *size = vector_type->getNumElements(); + if (element_type) + *element_type = + CompilerType(this, vector_type->getElementType().getAsOpaquePtr()); + } + return true; + } break; + case clang::Type::ExtVector: { + const clang::ExtVectorType *ext_vector_type = + qual_type->getAs<clang::ExtVectorType>(); + if (ext_vector_type) { + if (size) + *size = ext_vector_type->getNumElements(); + if (element_type) + *element_type = + CompilerType(this, ext_vector_type->getElementType().getAsOpaquePtr()); + } + return true; + } + default: + break; + } + return false; +} + +bool ClangASTContext::IsRuntimeGeneratedType( + lldb::opaque_compiler_type_t type) { + clang::DeclContext *decl_ctx = ClangASTContext::GetASTContext(getASTContext()) + ->GetDeclContextForType(GetQualType(type)); + if (!decl_ctx) + return false; + + if (!llvm::isa<clang::ObjCInterfaceDecl>(decl_ctx)) + return false; + + clang::ObjCInterfaceDecl *result_iface_decl = + llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl_ctx); + + ClangASTMetadata *ast_metadata = + ClangASTContext::GetMetadata(getASTContext(), result_iface_decl); + if (!ast_metadata) + return false; + return (ast_metadata->GetISAPtr() != 0); +} + +bool ClangASTContext::IsCharType(lldb::opaque_compiler_type_t type) { + return GetQualType(type).getUnqualifiedType()->isCharType(); +} + +bool ClangASTContext::IsCompleteType(lldb::opaque_compiler_type_t type) { + const bool allow_completion = false; + return GetCompleteQualType(getASTContext(), GetQualType(type), + allow_completion); +} + +bool ClangASTContext::IsConst(lldb::opaque_compiler_type_t type) { + return GetQualType(type).isConstQualified(); +} + +bool ClangASTContext::IsCStringType(lldb::opaque_compiler_type_t type, + uint32_t &length) { + CompilerType pointee_or_element_clang_type; + length = 0; + Flags type_flags(GetTypeInfo(type, &pointee_or_element_clang_type)); + + if (!pointee_or_element_clang_type.IsValid()) + return false; + + if (type_flags.AnySet(eTypeIsArray | eTypeIsPointer)) { + if (pointee_or_element_clang_type.IsCharType()) { + if (type_flags.Test(eTypeIsArray)) { + // We know the size of the array and it could be a C string since it is + // an array of characters + length = llvm::cast<clang::ConstantArrayType>( + GetCanonicalQualType(type).getTypePtr()) + ->getSize() + .getLimitedValue(); + } + return true; + } + } + return false; +} + +bool ClangASTContext::IsFunctionType(lldb::opaque_compiler_type_t type, + bool *is_variadic_ptr) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + if (qual_type->isFunctionType()) { + if (is_variadic_ptr) { + const clang::FunctionProtoType *function_proto_type = + llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); + if (function_proto_type) + *is_variadic_ptr = function_proto_type->isVariadic(); + else + *is_variadic_ptr = false; + } + return true; + } + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + default: + break; + case clang::Type::Typedef: + return IsFunctionType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + nullptr); + case clang::Type::Auto: + return IsFunctionType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + nullptr); + case clang::Type::Elaborated: + return IsFunctionType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + nullptr); + case clang::Type::Paren: + return IsFunctionType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + nullptr); + case clang::Type::LValueReference: + case clang::Type::RValueReference: { + const clang::ReferenceType *reference_type = + llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); + if (reference_type) + return IsFunctionType(reference_type->getPointeeType().getAsOpaquePtr(), + nullptr); + } break; + } + } + return false; +} + +// Used to detect "Homogeneous Floating-point Aggregates" +uint32_t +ClangASTContext::IsHomogeneousAggregate(lldb::opaque_compiler_type_t type, + CompilerType *base_type_ptr) { + if (!type) + return 0; + + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + if (cxx_record_decl->getNumBases() || cxx_record_decl->isDynamicClass()) + return 0; + } + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + if (record_type) { + const clang::RecordDecl *record_decl = record_type->getDecl(); + if (record_decl) { + // We are looking for a structure that contains only floating point + // types + clang::RecordDecl::field_iterator field_pos, + field_end = record_decl->field_end(); + uint32_t num_fields = 0; + bool is_hva = false; + bool is_hfa = false; + clang::QualType base_qual_type; + uint64_t base_bitwidth = 0; + for (field_pos = record_decl->field_begin(); field_pos != field_end; + ++field_pos) { + clang::QualType field_qual_type = field_pos->getType(); + uint64_t field_bitwidth = getASTContext()->getTypeSize(qual_type); + if (field_qual_type->isFloatingType()) { + if (field_qual_type->isComplexType()) + return 0; + else { + if (num_fields == 0) + base_qual_type = field_qual_type; + else { + if (is_hva) + return 0; + is_hfa = true; + if (field_qual_type.getTypePtr() != + base_qual_type.getTypePtr()) + return 0; + } + } + } else if (field_qual_type->isVectorType() || + field_qual_type->isExtVectorType()) { + if (num_fields == 0) { + base_qual_type = field_qual_type; + base_bitwidth = field_bitwidth; + } else { + if (is_hfa) + return 0; + is_hva = true; + if (base_bitwidth != field_bitwidth) + return 0; + if (field_qual_type.getTypePtr() != base_qual_type.getTypePtr()) + return 0; + } + } else + return 0; + ++num_fields; + } + if (base_type_ptr) + *base_type_ptr = CompilerType(this, base_qual_type.getAsOpaquePtr()); + return num_fields; + } + } + } + break; + + case clang::Type::Typedef: + return IsHomogeneousAggregate(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + base_type_ptr); + + case clang::Type::Auto: + return IsHomogeneousAggregate(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + base_type_ptr); + + case clang::Type::Elaborated: + return IsHomogeneousAggregate(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + base_type_ptr); + default: + break; + } + return 0; +} + +size_t ClangASTContext::GetNumberOfFunctionArguments( + lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::FunctionProtoType *func = + llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); + if (func) + return func->getNumParams(); + } + return 0; +} + +CompilerType +ClangASTContext::GetFunctionArgumentAtIndex(lldb::opaque_compiler_type_t type, + const size_t index) { + if (type) { + clang::QualType qual_type(GetQualType(type)); + const clang::FunctionProtoType *func = + llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); + if (func) { + if (index < func->getNumParams()) + return CompilerType(this, func->getParamType(index).getAsOpaquePtr()); + } + } + return CompilerType(); +} + +bool ClangASTContext::IsFunctionPointerType(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + if (qual_type->isFunctionPointerType()) + return true; + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + default: + break; + case clang::Type::Typedef: + return IsFunctionPointerType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()); + case clang::Type::Auto: + return IsFunctionPointerType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()); + case clang::Type::Elaborated: + return IsFunctionPointerType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()); + case clang::Type::Paren: + return IsFunctionPointerType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()); + + case clang::Type::LValueReference: + case clang::Type::RValueReference: { + const clang::ReferenceType *reference_type = + llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); + if (reference_type) + return IsFunctionPointerType( + reference_type->getPointeeType().getAsOpaquePtr()); + } break; + } + } + return false; +} + +bool ClangASTContext::IsBlockPointerType( + lldb::opaque_compiler_type_t type, + CompilerType *function_pointer_type_ptr) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + if (qual_type->isBlockPointerType()) { + if (function_pointer_type_ptr) { + const clang::BlockPointerType *block_pointer_type = + qual_type->getAs<clang::BlockPointerType>(); + QualType pointee_type = block_pointer_type->getPointeeType(); + QualType function_pointer_type = m_ast_up->getPointerType(pointee_type); + *function_pointer_type_ptr = + CompilerType(this, function_pointer_type.getAsOpaquePtr()); + } + return true; + } + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + default: + break; + case clang::Type::Typedef: + return IsBlockPointerType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + function_pointer_type_ptr); + case clang::Type::Auto: + return IsBlockPointerType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + function_pointer_type_ptr); + case clang::Type::Elaborated: + return IsBlockPointerType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + function_pointer_type_ptr); + case clang::Type::Paren: + return IsBlockPointerType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + function_pointer_type_ptr); + + case clang::Type::LValueReference: + case clang::Type::RValueReference: { + const clang::ReferenceType *reference_type = + llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); + if (reference_type) + return IsBlockPointerType( + reference_type->getPointeeType().getAsOpaquePtr(), + function_pointer_type_ptr); + } break; + } + } + return false; +} + +bool ClangASTContext::IsIntegerType(lldb::opaque_compiler_type_t type, + bool &is_signed) { + if (!type) + return false; + + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::BuiltinType *builtin_type = + llvm::dyn_cast<clang::BuiltinType>(qual_type->getCanonicalTypeInternal()); + + if (builtin_type) { + if (builtin_type->isInteger()) { + is_signed = builtin_type->isSignedInteger(); + return true; + } + } + + return false; +} + +bool ClangASTContext::IsEnumerationType(lldb::opaque_compiler_type_t type, + bool &is_signed) { + if (type) { + const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>( + GetCanonicalQualType(type)->getCanonicalTypeInternal()); + + if (enum_type) { + IsIntegerType(enum_type->getDecl()->getIntegerType().getAsOpaquePtr(), + is_signed); + return true; + } + } + + return false; +} + +bool ClangASTContext::IsPointerType(lldb::opaque_compiler_type_t type, + CompilerType *pointee_type) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + default: + break; + case clang::BuiltinType::ObjCId: + case clang::BuiltinType::ObjCClass: + return true; + } + return false; + case clang::Type::ObjCObjectPointer: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + case clang::Type::BlockPointer: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::BlockPointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + case clang::Type::Pointer: + if (pointee_type) + pointee_type->SetCompilerType(this, + llvm::cast<clang::PointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + case clang::Type::MemberPointer: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::MemberPointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + case clang::Type::Typedef: + return IsPointerType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + pointee_type); + case clang::Type::Auto: + return IsPointerType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + pointee_type); + case clang::Type::Elaborated: + return IsPointerType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + pointee_type); + case clang::Type::Paren: + return IsPointerType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + pointee_type); + default: + break; + } + } + if (pointee_type) + pointee_type->Clear(); + return false; +} + +bool ClangASTContext::IsPointerOrReferenceType( + lldb::opaque_compiler_type_t type, CompilerType *pointee_type) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + default: + break; + case clang::BuiltinType::ObjCId: + case clang::BuiltinType::ObjCClass: + return true; + } + return false; + case clang::Type::ObjCObjectPointer: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) + ->getPointeeType().getAsOpaquePtr()); + return true; + case clang::Type::BlockPointer: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::BlockPointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + case clang::Type::Pointer: + if (pointee_type) + pointee_type->SetCompilerType(this, + llvm::cast<clang::PointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + case clang::Type::MemberPointer: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::MemberPointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + case clang::Type::LValueReference: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::LValueReferenceType>(qual_type) + ->desugar() + .getAsOpaquePtr()); + return true; + case clang::Type::RValueReference: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::RValueReferenceType>(qual_type) + ->desugar() + .getAsOpaquePtr()); + return true; + case clang::Type::Typedef: + return IsPointerOrReferenceType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + pointee_type); + case clang::Type::Auto: + return IsPointerOrReferenceType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + pointee_type); + case clang::Type::Elaborated: + return IsPointerOrReferenceType( + llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + pointee_type); + case clang::Type::Paren: + return IsPointerOrReferenceType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + pointee_type); + default: + break; + } + } + if (pointee_type) + pointee_type->Clear(); + return false; +} + +bool ClangASTContext::IsReferenceType(lldb::opaque_compiler_type_t type, + CompilerType *pointee_type, + bool *is_rvalue) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + + switch (type_class) { + case clang::Type::LValueReference: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::LValueReferenceType>(qual_type) + ->desugar() + .getAsOpaquePtr()); + if (is_rvalue) + *is_rvalue = false; + return true; + case clang::Type::RValueReference: + if (pointee_type) + pointee_type->SetCompilerType( + this, llvm::cast<clang::RValueReferenceType>(qual_type) + ->desugar() + .getAsOpaquePtr()); + if (is_rvalue) + *is_rvalue = true; + return true; + case clang::Type::Typedef: + return IsReferenceType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + pointee_type, is_rvalue); + case clang::Type::Auto: + return IsReferenceType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + pointee_type, is_rvalue); + case clang::Type::Elaborated: + return IsReferenceType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + pointee_type, is_rvalue); + case clang::Type::Paren: + return IsReferenceType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + pointee_type, is_rvalue); + + default: + break; + } + } + if (pointee_type) + pointee_type->Clear(); + return false; +} + +bool ClangASTContext::IsFloatingPointType(lldb::opaque_compiler_type_t type, + uint32_t &count, bool &is_complex) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + if (const clang::BuiltinType *BT = llvm::dyn_cast<clang::BuiltinType>( + qual_type->getCanonicalTypeInternal())) { + clang::BuiltinType::Kind kind = BT->getKind(); + if (kind >= clang::BuiltinType::Float && + kind <= clang::BuiltinType::LongDouble) { + count = 1; + is_complex = false; + return true; + } + } else if (const clang::ComplexType *CT = + llvm::dyn_cast<clang::ComplexType>( + qual_type->getCanonicalTypeInternal())) { + if (IsFloatingPointType(CT->getElementType().getAsOpaquePtr(), count, + is_complex)) { + count = 2; + is_complex = true; + return true; + } + } else if (const clang::VectorType *VT = llvm::dyn_cast<clang::VectorType>( + qual_type->getCanonicalTypeInternal())) { + if (IsFloatingPointType(VT->getElementType().getAsOpaquePtr(), count, + is_complex)) { + count = VT->getNumElements(); + is_complex = false; + return true; + } + } + } + count = 0; + is_complex = false; + return false; +} + +bool ClangASTContext::IsDefined(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + + clang::QualType qual_type(GetQualType(type)); + const clang::TagType *tag_type = + llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()); + if (tag_type) { + clang::TagDecl *tag_decl = tag_type->getDecl(); + if (tag_decl) + return tag_decl->isCompleteDefinition(); + return false; + } else { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + if (class_interface_decl) + return class_interface_decl->getDefinition() != nullptr; + return false; + } + } + return true; +} + +bool ClangASTContext::IsObjCClassType(const CompilerType &type) { + if (type) { + clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); + + const clang::ObjCObjectPointerType *obj_pointer_type = + llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type); + + if (obj_pointer_type) + return obj_pointer_type->isObjCClassType(); + } + return false; +} + +bool ClangASTContext::IsObjCObjectOrInterfaceType(const CompilerType &type) { + if (ClangUtil::IsClangType(type)) + return ClangUtil::GetCanonicalQualType(type)->isObjCObjectOrInterfaceType(); + return false; +} + +bool ClangASTContext::IsClassType(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + return (type_class == clang::Type::Record); +} + +bool ClangASTContext::IsEnumType(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + return (type_class == clang::Type::Enum); +} + +bool ClangASTContext::IsPolymorphicClass(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + if (record_decl) { + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + if (cxx_record_decl) + return cxx_record_decl->isPolymorphic(); + } + } + break; + + default: + break; + } + } + return false; +} + +bool ClangASTContext::IsPossibleDynamicType(lldb::opaque_compiler_type_t type, + CompilerType *dynamic_pointee_type, + bool check_cplusplus, + bool check_objc) { + clang::QualType pointee_qual_type; + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + bool success = false; + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Builtin: + if (check_objc && + llvm::cast<clang::BuiltinType>(qual_type)->getKind() == + clang::BuiltinType::ObjCId) { + if (dynamic_pointee_type) + dynamic_pointee_type->SetCompilerType(this, type); + return true; + } + break; + + case clang::Type::ObjCObjectPointer: + if (check_objc) { + if (auto objc_pointee_type = + qual_type->getPointeeType().getTypePtrOrNull()) { + if (auto objc_object_type = + llvm::dyn_cast_or_null<clang::ObjCObjectType>( + objc_pointee_type)) { + if (objc_object_type->isObjCClass()) + return false; + } + } + if (dynamic_pointee_type) + dynamic_pointee_type->SetCompilerType( + this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) + ->getPointeeType() + .getAsOpaquePtr()); + return true; + } + break; + + case clang::Type::Pointer: + pointee_qual_type = + llvm::cast<clang::PointerType>(qual_type)->getPointeeType(); + success = true; + break; + + case clang::Type::LValueReference: + case clang::Type::RValueReference: + pointee_qual_type = + llvm::cast<clang::ReferenceType>(qual_type)->getPointeeType(); + success = true; + break; + + case clang::Type::Typedef: + return IsPossibleDynamicType(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + dynamic_pointee_type, check_cplusplus, + check_objc); + + case clang::Type::Auto: + return IsPossibleDynamicType(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + dynamic_pointee_type, check_cplusplus, + check_objc); + + case clang::Type::Elaborated: + return IsPossibleDynamicType(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + dynamic_pointee_type, check_cplusplus, + check_objc); + + case clang::Type::Paren: + return IsPossibleDynamicType( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + dynamic_pointee_type, check_cplusplus, check_objc); + default: + break; + } + + if (success) { + // Check to make sure what we are pointing too is a possible dynamic C++ + // type We currently accept any "void *" (in case we have a class that + // has been watered down to an opaque pointer) and virtual C++ classes. + const clang::Type::TypeClass pointee_type_class = + pointee_qual_type.getCanonicalType()->getTypeClass(); + switch (pointee_type_class) { + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(pointee_qual_type)->getKind()) { + case clang::BuiltinType::UnknownAny: + case clang::BuiltinType::Void: + if (dynamic_pointee_type) + dynamic_pointee_type->SetCompilerType( + this, pointee_qual_type.getAsOpaquePtr()); + return true; + default: + break; + } + break; + + case clang::Type::Record: + if (check_cplusplus) { + clang::CXXRecordDecl *cxx_record_decl = + pointee_qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + bool is_complete = cxx_record_decl->isCompleteDefinition(); + + if (is_complete) + success = cxx_record_decl->isDynamicClass(); + else { + ClangASTMetadata *metadata = ClangASTContext::GetMetadata( + getASTContext(), cxx_record_decl); + if (metadata) + success = metadata->GetIsDynamicCXXType(); + else { + is_complete = + CompilerType(this, pointee_qual_type.getAsOpaquePtr()) + .GetCompleteType(); + if (is_complete) + success = cxx_record_decl->isDynamicClass(); + else + success = false; + } + } + + if (success) { + if (dynamic_pointee_type) + dynamic_pointee_type->SetCompilerType( + this, pointee_qual_type.getAsOpaquePtr()); + return true; + } + } + } + break; + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (check_objc) { + if (dynamic_pointee_type) + dynamic_pointee_type->SetCompilerType( + this, pointee_qual_type.getAsOpaquePtr()); + return true; + } + break; + + default: + break; + } + } + } + if (dynamic_pointee_type) + dynamic_pointee_type->Clear(); + return false; +} + +bool ClangASTContext::IsScalarType(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + + return (GetTypeInfo(type, nullptr) & eTypeIsScalar) != 0; +} + +bool ClangASTContext::IsTypedefType(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + return GetQualType(type)->getTypeClass() == clang::Type::Typedef; +} + +bool ClangASTContext::IsVoidType(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + return GetCanonicalQualType(type)->isVoidType(); +} + +bool ClangASTContext::CanPassInRegisters(const CompilerType &type) { + if (auto *record_decl = + ClangASTContext::GetAsRecordDecl(type)) { + return record_decl->canPassInRegisters(); + } + return false; +} + +bool ClangASTContext::SupportsLanguage(lldb::LanguageType language) { + return ClangASTContextSupportsLanguage(language); +} + +bool ClangASTContext::GetCXXClassName(const CompilerType &type, + std::string &class_name) { + if (type) { + clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); + if (!qual_type.isNull()) { + clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + class_name.assign(cxx_record_decl->getIdentifier()->getNameStart()); + return true; + } + } + } + class_name.clear(); + return false; +} + +bool ClangASTContext::IsCXXClassType(const CompilerType &type) { + if (!type) + return false; + + clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); + return !qual_type.isNull() && qual_type->getAsCXXRecordDecl() != nullptr; +} + +bool ClangASTContext::IsBeingDefined(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type); + if (tag_type) + return tag_type->isBeingDefined(); + return false; +} + +bool ClangASTContext::IsObjCObjectPointerType(const CompilerType &type, + CompilerType *class_type_ptr) { + if (!type) + return false; + + clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); + + if (!qual_type.isNull() && qual_type->isObjCObjectPointerType()) { + if (class_type_ptr) { + if (!qual_type->isObjCClassType() && !qual_type->isObjCIdType()) { + const clang::ObjCObjectPointerType *obj_pointer_type = + llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type); + if (obj_pointer_type == nullptr) + class_type_ptr->Clear(); + else + class_type_ptr->SetCompilerType( + type.GetTypeSystem(), + clang::QualType(obj_pointer_type->getInterfaceType(), 0) + .getAsOpaquePtr()); + } + } + return true; + } + if (class_type_ptr) + class_type_ptr->Clear(); + return false; +} + +// Type Completion + +bool ClangASTContext::GetCompleteType(lldb::opaque_compiler_type_t type) { + if (!type) + return false; + const bool allow_completion = true; + return GetCompleteQualType(getASTContext(), GetQualType(type), + allow_completion); +} + +ConstString ClangASTContext::GetTypeName(lldb::opaque_compiler_type_t type) { + std::string type_name; + if (type) { + clang::PrintingPolicy printing_policy(getASTContext()->getPrintingPolicy()); + clang::QualType qual_type(GetQualType(type)); + printing_policy.SuppressTagKeyword = true; + const clang::TypedefType *typedef_type = + qual_type->getAs<clang::TypedefType>(); + if (typedef_type) { + const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); + type_name = typedef_decl->getQualifiedNameAsString(); + } else { + type_name = qual_type.getAsString(printing_policy); + } + } + return ConstString(type_name); +} + +uint32_t +ClangASTContext::GetTypeInfo(lldb::opaque_compiler_type_t type, + CompilerType *pointee_or_element_clang_type) { + if (!type) + return 0; + + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->Clear(); + + clang::QualType qual_type(GetQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Attributed: + return GetTypeInfo( + qual_type->getAs<clang::AttributedType>() + ->getModifiedType().getAsOpaquePtr(), + pointee_or_element_clang_type); + case clang::Type::Builtin: { + const clang::BuiltinType *builtin_type = llvm::dyn_cast<clang::BuiltinType>( + qual_type->getCanonicalTypeInternal()); + + uint32_t builtin_type_flags = eTypeIsBuiltIn | eTypeHasValue; + switch (builtin_type->getKind()) { + case clang::BuiltinType::ObjCId: + case clang::BuiltinType::ObjCClass: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, getASTContext()->ObjCBuiltinClassTy.getAsOpaquePtr()); + builtin_type_flags |= eTypeIsPointer | eTypeIsObjC; + break; + + case clang::BuiltinType::ObjCSel: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, getASTContext()->CharTy.getAsOpaquePtr()); + builtin_type_flags |= eTypeIsPointer | eTypeIsObjC; + break; + + case clang::BuiltinType::Bool: + case clang::BuiltinType::Char_U: + case clang::BuiltinType::UChar: + case clang::BuiltinType::WChar_U: + case clang::BuiltinType::Char16: + case clang::BuiltinType::Char32: + case clang::BuiltinType::UShort: + case clang::BuiltinType::UInt: + case clang::BuiltinType::ULong: + case clang::BuiltinType::ULongLong: + case clang::BuiltinType::UInt128: + case clang::BuiltinType::Char_S: + case clang::BuiltinType::SChar: + case clang::BuiltinType::WChar_S: + case clang::BuiltinType::Short: + case clang::BuiltinType::Int: + case clang::BuiltinType::Long: + case clang::BuiltinType::LongLong: + case clang::BuiltinType::Int128: + case clang::BuiltinType::Float: + case clang::BuiltinType::Double: + case clang::BuiltinType::LongDouble: + builtin_type_flags |= eTypeIsScalar; + if (builtin_type->isInteger()) { + builtin_type_flags |= eTypeIsInteger; + if (builtin_type->isSignedInteger()) + builtin_type_flags |= eTypeIsSigned; + } else if (builtin_type->isFloatingPoint()) + builtin_type_flags |= eTypeIsFloat; + break; + default: + break; + } + return builtin_type_flags; + } + + case clang::Type::BlockPointer: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, qual_type->getPointeeType().getAsOpaquePtr()); + return eTypeIsPointer | eTypeHasChildren | eTypeIsBlock; + + case clang::Type::Complex: { + uint32_t complex_type_flags = + eTypeIsBuiltIn | eTypeHasValue | eTypeIsComplex; + const clang::ComplexType *complex_type = llvm::dyn_cast<clang::ComplexType>( + qual_type->getCanonicalTypeInternal()); + if (complex_type) { + clang::QualType complex_element_type(complex_type->getElementType()); + if (complex_element_type->isIntegerType()) + complex_type_flags |= eTypeIsFloat; + else if (complex_element_type->isFloatingType()) + complex_type_flags |= eTypeIsInteger; + } + return complex_type_flags; + } break; + + case clang::Type::ConstantArray: + case clang::Type::DependentSizedArray: + case clang::Type::IncompleteArray: + case clang::Type::VariableArray: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, llvm::cast<clang::ArrayType>(qual_type.getTypePtr()) + ->getElementType() + .getAsOpaquePtr()); + return eTypeHasChildren | eTypeIsArray; + + case clang::Type::DependentName: + return 0; + case clang::Type::DependentSizedExtVector: + return eTypeHasChildren | eTypeIsVector; + case clang::Type::DependentTemplateSpecialization: + return eTypeIsTemplate; + case clang::Type::Decltype: + return CompilerType(this, llvm::cast<clang::DecltypeType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetTypeInfo(pointee_or_element_clang_type); + + case clang::Type::Enum: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, llvm::cast<clang::EnumType>(qual_type) + ->getDecl() + ->getIntegerType() + .getAsOpaquePtr()); + return eTypeIsEnumeration | eTypeHasValue; + + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetTypeInfo(pointee_or_element_clang_type); + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetTypeInfo(pointee_or_element_clang_type); + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetTypeInfo(pointee_or_element_clang_type); + + case clang::Type::FunctionProto: + return eTypeIsFuncPrototype | eTypeHasValue; + case clang::Type::FunctionNoProto: + return eTypeIsFuncPrototype | eTypeHasValue; + case clang::Type::InjectedClassName: + return 0; + + case clang::Type::LValueReference: + case clang::Type::RValueReference: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()) + ->getPointeeType() + .getAsOpaquePtr()); + return eTypeHasChildren | eTypeIsReference | eTypeHasValue; + + case clang::Type::MemberPointer: + return eTypeIsPointer | eTypeIsMember | eTypeHasValue; + + case clang::Type::ObjCObjectPointer: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, qual_type->getPointeeType().getAsOpaquePtr()); + return eTypeHasChildren | eTypeIsObjC | eTypeIsClass | eTypeIsPointer | + eTypeHasValue; + + case clang::Type::ObjCObject: + return eTypeHasChildren | eTypeIsObjC | eTypeIsClass; + case clang::Type::ObjCInterface: + return eTypeHasChildren | eTypeIsObjC | eTypeIsClass; + + case clang::Type::Pointer: + if (pointee_or_element_clang_type) + pointee_or_element_clang_type->SetCompilerType( + this, qual_type->getPointeeType().getAsOpaquePtr()); + return eTypeHasChildren | eTypeIsPointer | eTypeHasValue; + + case clang::Type::Record: + if (qual_type->getAsCXXRecordDecl()) + return eTypeHasChildren | eTypeIsClass | eTypeIsCPlusPlus; + else + return eTypeHasChildren | eTypeIsStructUnion; + break; + case clang::Type::SubstTemplateTypeParm: + return eTypeIsTemplate; + case clang::Type::TemplateTypeParm: + return eTypeIsTemplate; + case clang::Type::TemplateSpecialization: + return eTypeIsTemplate; + + case clang::Type::Typedef: + return eTypeIsTypedef | + CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetTypeInfo(pointee_or_element_clang_type); + case clang::Type::TypeOfExpr: + return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type) + ->getUnderlyingExpr() + ->getType() + .getAsOpaquePtr()) + .GetTypeInfo(pointee_or_element_clang_type); + case clang::Type::TypeOf: + return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetTypeInfo(pointee_or_element_clang_type); + case clang::Type::UnresolvedUsing: + return 0; + + case clang::Type::ExtVector: + case clang::Type::Vector: { + uint32_t vector_type_flags = eTypeHasChildren | eTypeIsVector; + const clang::VectorType *vector_type = llvm::dyn_cast<clang::VectorType>( + qual_type->getCanonicalTypeInternal()); + if (vector_type) { + if (vector_type->isIntegerType()) + vector_type_flags |= eTypeIsFloat; + else if (vector_type->isFloatingType()) + vector_type_flags |= eTypeIsInteger; + } + return vector_type_flags; + } + default: + return 0; + } + return 0; +} + +lldb::LanguageType +ClangASTContext::GetMinimumLanguage(lldb::opaque_compiler_type_t type) { + if (!type) + return lldb::eLanguageTypeC; + + // If the type is a reference, then resolve it to what it refers to first: + clang::QualType qual_type(GetCanonicalQualType(type).getNonReferenceType()); + if (qual_type->isAnyPointerType()) { + if (qual_type->isObjCObjectPointerType()) + return lldb::eLanguageTypeObjC; + if (qual_type->getPointeeCXXRecordDecl()) + return lldb::eLanguageTypeC_plus_plus; + + clang::QualType pointee_type(qual_type->getPointeeType()); + if (pointee_type->getPointeeCXXRecordDecl()) + return lldb::eLanguageTypeC_plus_plus; + if (pointee_type->isObjCObjectOrInterfaceType()) + return lldb::eLanguageTypeObjC; + if (pointee_type->isObjCClassType()) + return lldb::eLanguageTypeObjC; + if (pointee_type.getTypePtr() == + getASTContext()->ObjCBuiltinIdTy.getTypePtr()) + return lldb::eLanguageTypeObjC; + } else { + if (qual_type->isObjCObjectOrInterfaceType()) + return lldb::eLanguageTypeObjC; + if (qual_type->getAsCXXRecordDecl()) + return lldb::eLanguageTypeC_plus_plus; + switch (qual_type->getTypeClass()) { + default: + break; + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + default: + case clang::BuiltinType::Void: + case clang::BuiltinType::Bool: + case clang::BuiltinType::Char_U: + case clang::BuiltinType::UChar: + case clang::BuiltinType::WChar_U: + case clang::BuiltinType::Char16: + case clang::BuiltinType::Char32: + case clang::BuiltinType::UShort: + case clang::BuiltinType::UInt: + case clang::BuiltinType::ULong: + case clang::BuiltinType::ULongLong: + case clang::BuiltinType::UInt128: + case clang::BuiltinType::Char_S: + case clang::BuiltinType::SChar: + case clang::BuiltinType::WChar_S: + case clang::BuiltinType::Short: + case clang::BuiltinType::Int: + case clang::BuiltinType::Long: + case clang::BuiltinType::LongLong: + case clang::BuiltinType::Int128: + case clang::BuiltinType::Float: + case clang::BuiltinType::Double: + case clang::BuiltinType::LongDouble: + break; + + case clang::BuiltinType::NullPtr: + return eLanguageTypeC_plus_plus; + + case clang::BuiltinType::ObjCId: + case clang::BuiltinType::ObjCClass: + case clang::BuiltinType::ObjCSel: + return eLanguageTypeObjC; + + case clang::BuiltinType::Dependent: + case clang::BuiltinType::Overload: + case clang::BuiltinType::BoundMember: + case clang::BuiltinType::UnknownAny: + break; + } + break; + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetMinimumLanguage(); + } + } + return lldb::eLanguageTypeC; +} + +lldb::TypeClass +ClangASTContext::GetTypeClass(lldb::opaque_compiler_type_t type) { + if (!type) + return lldb::eTypeClassInvalid; + + clang::QualType qual_type(GetQualType(type)); + + switch (qual_type->getTypeClass()) { + case clang::Type::UnaryTransform: + break; + case clang::Type::FunctionNoProto: + return lldb::eTypeClassFunction; + case clang::Type::FunctionProto: + return lldb::eTypeClassFunction; + case clang::Type::IncompleteArray: + return lldb::eTypeClassArray; + case clang::Type::VariableArray: + return lldb::eTypeClassArray; + case clang::Type::ConstantArray: + return lldb::eTypeClassArray; + case clang::Type::DependentSizedArray: + return lldb::eTypeClassArray; + case clang::Type::DependentSizedExtVector: + return lldb::eTypeClassVector; + case clang::Type::DependentVector: + return lldb::eTypeClassVector; + case clang::Type::ExtVector: + return lldb::eTypeClassVector; + case clang::Type::Vector: + return lldb::eTypeClassVector; + case clang::Type::Builtin: + return lldb::eTypeClassBuiltin; + case clang::Type::ObjCObjectPointer: + return lldb::eTypeClassObjCObjectPointer; + case clang::Type::BlockPointer: + return lldb::eTypeClassBlockPointer; + case clang::Type::Pointer: + return lldb::eTypeClassPointer; + case clang::Type::LValueReference: + return lldb::eTypeClassReference; + case clang::Type::RValueReference: + return lldb::eTypeClassReference; + case clang::Type::MemberPointer: + return lldb::eTypeClassMemberPointer; + case clang::Type::Complex: + if (qual_type->isComplexType()) + return lldb::eTypeClassComplexFloat; + else + return lldb::eTypeClassComplexInteger; + case clang::Type::ObjCObject: + return lldb::eTypeClassObjCObject; + case clang::Type::ObjCInterface: + return lldb::eTypeClassObjCInterface; + case clang::Type::Record: { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + if (record_decl->isUnion()) + return lldb::eTypeClassUnion; + else if (record_decl->isStruct()) + return lldb::eTypeClassStruct; + else + return lldb::eTypeClassClass; + } break; + case clang::Type::Enum: + return lldb::eTypeClassEnumeration; + case clang::Type::Typedef: + return lldb::eTypeClassTypedef; + case clang::Type::UnresolvedUsing: + break; + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetTypeClass(); + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetTypeClass(); + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetTypeClass(); + + case clang::Type::Attributed: + break; + case clang::Type::TemplateTypeParm: + break; + case clang::Type::SubstTemplateTypeParm: + break; + case clang::Type::SubstTemplateTypeParmPack: + break; + case clang::Type::InjectedClassName: + break; + case clang::Type::DependentName: + break; + case clang::Type::DependentTemplateSpecialization: + break; + case clang::Type::PackExpansion: + break; + + case clang::Type::TypeOfExpr: + return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type) + ->getUnderlyingExpr() + ->getType() + .getAsOpaquePtr()) + .GetTypeClass(); + case clang::Type::TypeOf: + return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetTypeClass(); + case clang::Type::Decltype: + return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetTypeClass(); + case clang::Type::TemplateSpecialization: + break; + case clang::Type::DeducedTemplateSpecialization: + break; + case clang::Type::Atomic: + break; + case clang::Type::Pipe: + break; + + // pointer type decayed from an array or function type. + case clang::Type::Decayed: + break; + case clang::Type::Adjusted: + break; + case clang::Type::ObjCTypeParam: + break; + + case clang::Type::DependentAddressSpace: + break; + case clang::Type::MacroQualified: + break; + } + // We don't know hot to display this type... + return lldb::eTypeClassOther; +} + +unsigned ClangASTContext::GetTypeQualifiers(lldb::opaque_compiler_type_t type) { + if (type) + return GetQualType(type).getQualifiers().getCVRQualifiers(); + return 0; +} + +// Creating related types + +CompilerType +ClangASTContext::GetArrayElementType(lldb::opaque_compiler_type_t type, + uint64_t *stride) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + const clang::Type *array_eletype = + qual_type.getTypePtr()->getArrayElementTypeNoTypeQual(); + + if (!array_eletype) + return CompilerType(); + + CompilerType element_type( + this, array_eletype->getCanonicalTypeUnqualified().getAsOpaquePtr()); + + // TODO: the real stride will be >= this value.. find the real one! + if (stride) + if (Optional<uint64_t> size = element_type.GetByteSize(nullptr)) + *stride = *size; + + return element_type; + } + return CompilerType(); +} + +CompilerType ClangASTContext::GetArrayType(lldb::opaque_compiler_type_t type, + uint64_t size) { + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + if (clang::ASTContext *ast_ctx = getASTContext()) { + if (size != 0) + return CompilerType( + this, ast_ctx + ->getConstantArrayType( + qual_type, llvm::APInt(64, size), nullptr, + clang::ArrayType::ArraySizeModifier::Normal, 0) + .getAsOpaquePtr()); + else + return CompilerType( + this, + ast_ctx + ->getIncompleteArrayType( + qual_type, clang::ArrayType::ArraySizeModifier::Normal, 0) + .getAsOpaquePtr()); + } + } + + return CompilerType(); +} + +CompilerType +ClangASTContext::GetCanonicalType(lldb::opaque_compiler_type_t type) { + if (type) + return CompilerType(this, GetCanonicalQualType(type).getAsOpaquePtr()); + return CompilerType(); +} + +static clang::QualType GetFullyUnqualifiedType_Impl(clang::ASTContext *ast, + clang::QualType qual_type) { + if (qual_type->isPointerType()) + qual_type = ast->getPointerType( + GetFullyUnqualifiedType_Impl(ast, qual_type->getPointeeType())); + else + qual_type = qual_type.getUnqualifiedType(); + qual_type.removeLocalConst(); + qual_type.removeLocalRestrict(); + qual_type.removeLocalVolatile(); + return qual_type; +} + +CompilerType +ClangASTContext::GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) { + if (type) + return CompilerType( + this, + GetFullyUnqualifiedType_Impl(getASTContext(), GetQualType(type)).getAsOpaquePtr()); + return CompilerType(); +} + +int ClangASTContext::GetFunctionArgumentCount( + lldb::opaque_compiler_type_t type) { + if (type) { + const clang::FunctionProtoType *func = + llvm::dyn_cast<clang::FunctionProtoType>(GetCanonicalQualType(type)); + if (func) + return func->getNumParams(); + } + return -1; +} + +CompilerType ClangASTContext::GetFunctionArgumentTypeAtIndex( + lldb::opaque_compiler_type_t type, size_t idx) { + if (type) { + const clang::FunctionProtoType *func = + llvm::dyn_cast<clang::FunctionProtoType>(GetQualType(type)); + if (func) { + const uint32_t num_args = func->getNumParams(); + if (idx < num_args) + return CompilerType(this, func->getParamType(idx).getAsOpaquePtr()); + } + } + return CompilerType(); +} + +CompilerType +ClangASTContext::GetFunctionReturnType(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType qual_type(GetQualType(type)); + const clang::FunctionProtoType *func = + llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); + if (func) + return CompilerType(this, func->getReturnType().getAsOpaquePtr()); + } + return CompilerType(); +} + +size_t +ClangASTContext::GetNumMemberFunctions(lldb::opaque_compiler_type_t type) { + size_t num_functions = 0; + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + switch (qual_type->getTypeClass()) { + case clang::Type::Record: + if (GetCompleteQualType(getASTContext(), qual_type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + assert(record_decl); + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + if (cxx_record_decl) + num_functions = std::distance(cxx_record_decl->method_begin(), + cxx_record_decl->method_end()); + } + break; + + case clang::Type::ObjCObjectPointer: { + const clang::ObjCObjectPointerType *objc_class_type = + qual_type->getAs<clang::ObjCObjectPointerType>(); + const clang::ObjCInterfaceType *objc_interface_type = + objc_class_type->getInterfaceType(); + if (objc_interface_type && + GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( + const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_interface_type->getDecl(); + if (class_interface_decl) { + num_functions = std::distance(class_interface_decl->meth_begin(), + class_interface_decl->meth_end()); + } + } + break; + } + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (GetCompleteType(type)) { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + if (class_interface_decl) + num_functions = std::distance(class_interface_decl->meth_begin(), + class_interface_decl->meth_end()); + } + } + break; + + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetNumMemberFunctions(); + + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetNumMemberFunctions(); + + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetNumMemberFunctions(); + + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetNumMemberFunctions(); + + default: + break; + } + } + return num_functions; +} + +TypeMemberFunctionImpl +ClangASTContext::GetMemberFunctionAtIndex(lldb::opaque_compiler_type_t type, + size_t idx) { + std::string name; + MemberFunctionKind kind(MemberFunctionKind::eMemberFunctionKindUnknown); + CompilerType clang_type; + CompilerDecl clang_decl; + if (type) { + clang::QualType qual_type(GetCanonicalQualType(type)); + switch (qual_type->getTypeClass()) { + case clang::Type::Record: + if (GetCompleteQualType(getASTContext(), qual_type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + assert(record_decl); + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + if (cxx_record_decl) { + auto method_iter = cxx_record_decl->method_begin(); + auto method_end = cxx_record_decl->method_end(); + if (idx < + static_cast<size_t>(std::distance(method_iter, method_end))) { + std::advance(method_iter, idx); + clang::CXXMethodDecl *cxx_method_decl = + method_iter->getCanonicalDecl(); + if (cxx_method_decl) { + name = cxx_method_decl->getDeclName().getAsString(); + if (cxx_method_decl->isStatic()) + kind = lldb::eMemberFunctionKindStaticMethod; + else if (llvm::isa<clang::CXXConstructorDecl>(cxx_method_decl)) + kind = lldb::eMemberFunctionKindConstructor; + else if (llvm::isa<clang::CXXDestructorDecl>(cxx_method_decl)) + kind = lldb::eMemberFunctionKindDestructor; + else + kind = lldb::eMemberFunctionKindInstanceMethod; + clang_type = CompilerType( + this, cxx_method_decl->getType().getAsOpaquePtr()); + clang_decl = CompilerDecl(this, cxx_method_decl); + } + } + } + } + break; + + case clang::Type::ObjCObjectPointer: { + const clang::ObjCObjectPointerType *objc_class_type = + qual_type->getAs<clang::ObjCObjectPointerType>(); + const clang::ObjCInterfaceType *objc_interface_type = + objc_class_type->getInterfaceType(); + if (objc_interface_type && + GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( + const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_interface_type->getDecl(); + if (class_interface_decl) { + auto method_iter = class_interface_decl->meth_begin(); + auto method_end = class_interface_decl->meth_end(); + if (idx < + static_cast<size_t>(std::distance(method_iter, method_end))) { + std::advance(method_iter, idx); + clang::ObjCMethodDecl *objc_method_decl = + method_iter->getCanonicalDecl(); + if (objc_method_decl) { + clang_decl = CompilerDecl(this, objc_method_decl); + name = objc_method_decl->getSelector().getAsString(); + if (objc_method_decl->isClassMethod()) + kind = lldb::eMemberFunctionKindStaticMethod; + else + kind = lldb::eMemberFunctionKindInstanceMethod; + } + } + } + } + break; + } + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (GetCompleteType(type)) { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + if (class_interface_decl) { + auto method_iter = class_interface_decl->meth_begin(); + auto method_end = class_interface_decl->meth_end(); + if (idx < + static_cast<size_t>(std::distance(method_iter, method_end))) { + std::advance(method_iter, idx); + clang::ObjCMethodDecl *objc_method_decl = + method_iter->getCanonicalDecl(); + if (objc_method_decl) { + clang_decl = CompilerDecl(this, objc_method_decl); + name = objc_method_decl->getSelector().getAsString(); + if (objc_method_decl->isClassMethod()) + kind = lldb::eMemberFunctionKindStaticMethod; + else + kind = lldb::eMemberFunctionKindInstanceMethod; + } + } + } + } + } + break; + + case clang::Type::Typedef: + return GetMemberFunctionAtIndex(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + idx); + + case clang::Type::Auto: + return GetMemberFunctionAtIndex(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + idx); + + case clang::Type::Elaborated: + return GetMemberFunctionAtIndex( + llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + idx); + + case clang::Type::Paren: + return GetMemberFunctionAtIndex( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + idx); + + default: + break; + } + } + + if (kind == eMemberFunctionKindUnknown) + return TypeMemberFunctionImpl(); + else + return TypeMemberFunctionImpl(clang_type, clang_decl, name, kind); +} + +CompilerType +ClangASTContext::GetNonReferenceType(lldb::opaque_compiler_type_t type) { + if (type) + return CompilerType( + this, GetQualType(type).getNonReferenceType().getAsOpaquePtr()); + return CompilerType(); +} + +CompilerType ClangASTContext::CreateTypedefType( + const CompilerType &type, const char *typedef_name, + const CompilerDeclContext &compiler_decl_ctx) { + if (type && typedef_name && typedef_name[0]) { + ClangASTContext *ast = + llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (!ast) + return CompilerType(); + clang::ASTContext *clang_ast = ast->getASTContext(); + clang::QualType qual_type(ClangUtil::GetQualType(type)); + + clang::DeclContext *decl_ctx = + ClangASTContext::DeclContextGetAsDeclContext(compiler_decl_ctx); + if (decl_ctx == nullptr) + decl_ctx = ast->getASTContext()->getTranslationUnitDecl(); + + clang::TypedefDecl *decl = clang::TypedefDecl::Create( + *clang_ast, decl_ctx, clang::SourceLocation(), clang::SourceLocation(), + &clang_ast->Idents.get(typedef_name), + clang_ast->getTrivialTypeSourceInfo(qual_type)); + + decl->setAccess(clang::AS_public); // TODO respect proper access specifier + + decl_ctx->addDecl(decl); + + // Get a uniqued clang::QualType for the typedef decl type + return CompilerType(ast, clang_ast->getTypedefType(decl).getAsOpaquePtr()); + } + return CompilerType(); +} + +CompilerType +ClangASTContext::GetPointeeType(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType qual_type(GetQualType(type)); + return CompilerType( + this, qual_type.getTypePtr()->getPointeeType().getAsOpaquePtr()); + } + return CompilerType(); +} + +CompilerType +ClangASTContext::GetPointerType(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType qual_type(GetQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + return CompilerType(this, getASTContext() + ->getObjCObjectPointerType(qual_type) + .getAsOpaquePtr()); + + default: + return CompilerType( + this, getASTContext()->getPointerType(qual_type).getAsOpaquePtr()); + } + } + return CompilerType(); +} + +CompilerType +ClangASTContext::GetLValueReferenceType(lldb::opaque_compiler_type_t type) { + if (type) + return CompilerType(this, getASTContext() + ->getLValueReferenceType(GetQualType(type)) + .getAsOpaquePtr()); + else + return CompilerType(); +} + +CompilerType +ClangASTContext::GetRValueReferenceType(lldb::opaque_compiler_type_t type) { + if (type) + return CompilerType(this, getASTContext() + ->getRValueReferenceType(GetQualType(type)) + .getAsOpaquePtr()); + else + return CompilerType(); +} + +CompilerType +ClangASTContext::AddConstModifier(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType result(GetQualType(type)); + result.addConst(); + return CompilerType(this, result.getAsOpaquePtr()); + } + return CompilerType(); +} + +CompilerType +ClangASTContext::AddVolatileModifier(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType result(GetQualType(type)); + result.addVolatile(); + return CompilerType(this, result.getAsOpaquePtr()); + } + return CompilerType(); +} + +CompilerType +ClangASTContext::AddRestrictModifier(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType result(GetQualType(type)); + result.addRestrict(); + return CompilerType(this, result.getAsOpaquePtr()); + } + return CompilerType(); +} + +CompilerType +ClangASTContext::CreateTypedef(lldb::opaque_compiler_type_t type, + const char *typedef_name, + const CompilerDeclContext &compiler_decl_ctx) { + if (type) { + clang::ASTContext *clang_ast = getASTContext(); + clang::QualType qual_type(GetQualType(type)); + + clang::DeclContext *decl_ctx = + ClangASTContext::DeclContextGetAsDeclContext(compiler_decl_ctx); + if (decl_ctx == nullptr) + decl_ctx = getASTContext()->getTranslationUnitDecl(); + + clang::TypedefDecl *decl = clang::TypedefDecl::Create( + *clang_ast, decl_ctx, clang::SourceLocation(), clang::SourceLocation(), + &clang_ast->Idents.get(typedef_name), + clang_ast->getTrivialTypeSourceInfo(qual_type)); + + clang::TagDecl *tdecl = nullptr; + if (!qual_type.isNull()) { + if (const clang::RecordType *rt = qual_type->getAs<clang::RecordType>()) + tdecl = rt->getDecl(); + if (const clang::EnumType *et = qual_type->getAs<clang::EnumType>()) + tdecl = et->getDecl(); + } + + // Check whether this declaration is an anonymous struct, union, or enum, + // hidden behind a typedef. If so, we try to check whether we have a + // typedef tag to attach to the original record declaration + if (tdecl && !tdecl->getIdentifier() && !tdecl->getTypedefNameForAnonDecl()) + tdecl->setTypedefNameForAnonDecl(decl); + + decl->setAccess(clang::AS_public); // TODO respect proper access specifier + + // Get a uniqued clang::QualType for the typedef decl type + return CompilerType(this, clang_ast->getTypedefType(decl).getAsOpaquePtr()); + } + return CompilerType(); +} + +CompilerType +ClangASTContext::GetTypedefedType(lldb::opaque_compiler_type_t type) { + if (type) { + const clang::TypedefType *typedef_type = + llvm::dyn_cast<clang::TypedefType>(GetQualType(type)); + if (typedef_type) + return CompilerType( + this, typedef_type->getDecl()->getUnderlyingType().getAsOpaquePtr()); + } + return CompilerType(); +} + +// Create related types using the current type's AST + +CompilerType ClangASTContext::GetBasicTypeFromAST(lldb::BasicType basic_type) { + return ClangASTContext::GetBasicType(getASTContext(), basic_type); +} +// Exploring the type + +const llvm::fltSemantics & +ClangASTContext::GetFloatTypeSemantics(size_t byte_size) { + if (auto *ast = getASTContext()) { + const size_t bit_size = byte_size * 8; + if (bit_size == ast->getTypeSize(ast->FloatTy)) + return ast->getFloatTypeSemantics(ast->FloatTy); + else if (bit_size == ast->getTypeSize(ast->DoubleTy)) + return ast->getFloatTypeSemantics(ast->DoubleTy); + else if (bit_size == ast->getTypeSize(ast->LongDoubleTy)) + return ast->getFloatTypeSemantics(ast->LongDoubleTy); + else if (bit_size == ast->getTypeSize(ast->HalfTy)) + return ast->getFloatTypeSemantics(ast->HalfTy); + } + return llvm::APFloatBase::Bogus(); +} + +Optional<uint64_t> +ClangASTContext::GetBitSize(lldb::opaque_compiler_type_t type, + ExecutionContextScope *exe_scope) { + if (GetCompleteType(type)) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) + return getASTContext()->getTypeSize(qual_type); + else + return None; + break; + + case clang::Type::ObjCInterface: + case clang::Type::ObjCObject: { + ExecutionContext exe_ctx(exe_scope); + Process *process = exe_ctx.GetProcessPtr(); + if (process) { + ObjCLanguageRuntime *objc_runtime = ObjCLanguageRuntime::Get(*process); + if (objc_runtime) { + uint64_t bit_size = 0; + if (objc_runtime->GetTypeBitSize( + CompilerType(this, qual_type.getAsOpaquePtr()), bit_size)) + return bit_size; + } + } else { + static bool g_printed = false; + if (!g_printed) { + StreamString s; + DumpTypeDescription(type, &s); + + llvm::outs() << "warning: trying to determine the size of type "; + llvm::outs() << s.GetString() << "\n"; + llvm::outs() << "without a valid ExecutionContext. this is not " + "reliable. please file a bug against LLDB.\n"; + llvm::outs() << "backtrace:\n"; + llvm::sys::PrintStackTrace(llvm::outs()); + llvm::outs() << "\n"; + g_printed = true; + } + } + } + LLVM_FALLTHROUGH; + default: + const uint32_t bit_size = getASTContext()->getTypeSize(qual_type); + if (bit_size == 0) { + if (qual_type->isIncompleteArrayType()) + return getASTContext()->getTypeSize( + qual_type->getArrayElementTypeNoTypeQual() + ->getCanonicalTypeUnqualified()); + } + if (qual_type->isObjCObjectOrInterfaceType()) + return bit_size + + getASTContext()->getTypeSize( + getASTContext()->ObjCBuiltinClassTy); + // Function types actually have a size of 0, that's not an error. + if (qual_type->isFunctionProtoType()) + return bit_size; + if (bit_size) + return bit_size; + } + } + return None; +} + +llvm::Optional<size_t> +ClangASTContext::GetTypeBitAlign(lldb::opaque_compiler_type_t type, + ExecutionContextScope *exe_scope) { + if (GetCompleteType(type)) + return getASTContext()->getTypeAlign(GetQualType(type)); + return {}; +} + +lldb::Encoding ClangASTContext::GetEncoding(lldb::opaque_compiler_type_t type, + uint64_t &count) { + if (!type) + return lldb::eEncodingInvalid; + + count = 1; + clang::QualType qual_type(GetCanonicalQualType(type)); + + switch (qual_type->getTypeClass()) { + case clang::Type::UnaryTransform: + break; + + case clang::Type::FunctionNoProto: + case clang::Type::FunctionProto: + break; + + case clang::Type::IncompleteArray: + case clang::Type::VariableArray: + break; + + case clang::Type::ConstantArray: + break; + + case clang::Type::DependentVector: + case clang::Type::ExtVector: + case clang::Type::Vector: + // TODO: Set this to more than one??? + break; + + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + case clang::BuiltinType::Void: + break; + + case clang::BuiltinType::Bool: + case clang::BuiltinType::Char_S: + case clang::BuiltinType::SChar: + case clang::BuiltinType::WChar_S: + case clang::BuiltinType::Short: + case clang::BuiltinType::Int: + case clang::BuiltinType::Long: + case clang::BuiltinType::LongLong: + case clang::BuiltinType::Int128: + return lldb::eEncodingSint; + + case clang::BuiltinType::Char_U: + case clang::BuiltinType::UChar: + case clang::BuiltinType::WChar_U: + case clang::BuiltinType::Char8: + case clang::BuiltinType::Char16: + case clang::BuiltinType::Char32: + case clang::BuiltinType::UShort: + case clang::BuiltinType::UInt: + case clang::BuiltinType::ULong: + case clang::BuiltinType::ULongLong: + case clang::BuiltinType::UInt128: + return lldb::eEncodingUint; + + // Fixed point types. Note that they are currently ignored. + case clang::BuiltinType::ShortAccum: + case clang::BuiltinType::Accum: + case clang::BuiltinType::LongAccum: + case clang::BuiltinType::UShortAccum: + case clang::BuiltinType::UAccum: + case clang::BuiltinType::ULongAccum: + case clang::BuiltinType::ShortFract: + case clang::BuiltinType::Fract: + case clang::BuiltinType::LongFract: + case clang::BuiltinType::UShortFract: + case clang::BuiltinType::UFract: + case clang::BuiltinType::ULongFract: + case clang::BuiltinType::SatShortAccum: + case clang::BuiltinType::SatAccum: + case clang::BuiltinType::SatLongAccum: + case clang::BuiltinType::SatUShortAccum: + case clang::BuiltinType::SatUAccum: + case clang::BuiltinType::SatULongAccum: + case clang::BuiltinType::SatShortFract: + case clang::BuiltinType::SatFract: + case clang::BuiltinType::SatLongFract: + case clang::BuiltinType::SatUShortFract: + case clang::BuiltinType::SatUFract: + case clang::BuiltinType::SatULongFract: + break; + + case clang::BuiltinType::Half: + case clang::BuiltinType::Float: + case clang::BuiltinType::Float16: + case clang::BuiltinType::Float128: + case clang::BuiltinType::Double: + case clang::BuiltinType::LongDouble: + return lldb::eEncodingIEEE754; + + case clang::BuiltinType::ObjCClass: + case clang::BuiltinType::ObjCId: + case clang::BuiltinType::ObjCSel: + return lldb::eEncodingUint; + + case clang::BuiltinType::NullPtr: + return lldb::eEncodingUint; + + case clang::BuiltinType::Kind::ARCUnbridgedCast: + case clang::BuiltinType::Kind::BoundMember: + case clang::BuiltinType::Kind::BuiltinFn: + case clang::BuiltinType::Kind::Dependent: + case clang::BuiltinType::Kind::OCLClkEvent: + case clang::BuiltinType::Kind::OCLEvent: + case clang::BuiltinType::Kind::OCLImage1dRO: + case clang::BuiltinType::Kind::OCLImage1dWO: + case clang::BuiltinType::Kind::OCLImage1dRW: + case clang::BuiltinType::Kind::OCLImage1dArrayRO: + case clang::BuiltinType::Kind::OCLImage1dArrayWO: + case clang::BuiltinType::Kind::OCLImage1dArrayRW: + case clang::BuiltinType::Kind::OCLImage1dBufferRO: + case clang::BuiltinType::Kind::OCLImage1dBufferWO: + case clang::BuiltinType::Kind::OCLImage1dBufferRW: + case clang::BuiltinType::Kind::OCLImage2dRO: + case clang::BuiltinType::Kind::OCLImage2dWO: + case clang::BuiltinType::Kind::OCLImage2dRW: + case clang::BuiltinType::Kind::OCLImage2dArrayRO: + case clang::BuiltinType::Kind::OCLImage2dArrayWO: + case clang::BuiltinType::Kind::OCLImage2dArrayRW: + case clang::BuiltinType::Kind::OCLImage2dArrayDepthRO: + case clang::BuiltinType::Kind::OCLImage2dArrayDepthWO: + case clang::BuiltinType::Kind::OCLImage2dArrayDepthRW: + case clang::BuiltinType::Kind::OCLImage2dArrayMSAARO: + case clang::BuiltinType::Kind::OCLImage2dArrayMSAAWO: + case clang::BuiltinType::Kind::OCLImage2dArrayMSAARW: + case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRO: + case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthWO: + case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRW: + case clang::BuiltinType::Kind::OCLImage2dDepthRO: + case clang::BuiltinType::Kind::OCLImage2dDepthWO: + case clang::BuiltinType::Kind::OCLImage2dDepthRW: + case clang::BuiltinType::Kind::OCLImage2dMSAARO: + case clang::BuiltinType::Kind::OCLImage2dMSAAWO: + case clang::BuiltinType::Kind::OCLImage2dMSAARW: + case clang::BuiltinType::Kind::OCLImage2dMSAADepthRO: + case clang::BuiltinType::Kind::OCLImage2dMSAADepthWO: + case clang::BuiltinType::Kind::OCLImage2dMSAADepthRW: + case clang::BuiltinType::Kind::OCLImage3dRO: + case clang::BuiltinType::Kind::OCLImage3dWO: + case clang::BuiltinType::Kind::OCLImage3dRW: + case clang::BuiltinType::Kind::OCLQueue: + case clang::BuiltinType::Kind::OCLReserveID: + case clang::BuiltinType::Kind::OCLSampler: + case clang::BuiltinType::Kind::OMPArraySection: + case clang::BuiltinType::Kind::Overload: + case clang::BuiltinType::Kind::PseudoObject: + case clang::BuiltinType::Kind::UnknownAny: + break; + + case clang::BuiltinType::OCLIntelSubgroupAVCMcePayload: + case clang::BuiltinType::OCLIntelSubgroupAVCImePayload: + case clang::BuiltinType::OCLIntelSubgroupAVCRefPayload: + case clang::BuiltinType::OCLIntelSubgroupAVCSicPayload: + case clang::BuiltinType::OCLIntelSubgroupAVCMceResult: + case clang::BuiltinType::OCLIntelSubgroupAVCImeResult: + case clang::BuiltinType::OCLIntelSubgroupAVCRefResult: + case clang::BuiltinType::OCLIntelSubgroupAVCSicResult: + case clang::BuiltinType::OCLIntelSubgroupAVCImeResultSingleRefStreamout: + case clang::BuiltinType::OCLIntelSubgroupAVCImeResultDualRefStreamout: + case clang::BuiltinType::OCLIntelSubgroupAVCImeSingleRefStreamin: + case clang::BuiltinType::OCLIntelSubgroupAVCImeDualRefStreamin: + break; + + case clang::BuiltinType::SveBool: + case clang::BuiltinType::SveInt8: + case clang::BuiltinType::SveInt16: + case clang::BuiltinType::SveInt32: + case clang::BuiltinType::SveInt64: + case clang::BuiltinType::SveUint8: + case clang::BuiltinType::SveUint16: + case clang::BuiltinType::SveUint32: + case clang::BuiltinType::SveUint64: + case clang::BuiltinType::SveFloat16: + case clang::BuiltinType::SveFloat32: + case clang::BuiltinType::SveFloat64: + break; + } + break; + // All pointer types are represented as unsigned integer encodings. We may + // nee to add a eEncodingPointer if we ever need to know the difference + case clang::Type::ObjCObjectPointer: + case clang::Type::BlockPointer: + case clang::Type::Pointer: + case clang::Type::LValueReference: + case clang::Type::RValueReference: + case clang::Type::MemberPointer: + return lldb::eEncodingUint; + case clang::Type::Complex: { + lldb::Encoding encoding = lldb::eEncodingIEEE754; + if (qual_type->isComplexType()) + encoding = lldb::eEncodingIEEE754; + else { + const clang::ComplexType *complex_type = + qual_type->getAsComplexIntegerType(); + if (complex_type) + encoding = + CompilerType(this, complex_type->getElementType().getAsOpaquePtr()) + .GetEncoding(count); + else + encoding = lldb::eEncodingSint; + } + count = 2; + return encoding; + } + + case clang::Type::ObjCInterface: + break; + case clang::Type::Record: + break; + case clang::Type::Enum: + return lldb::eEncodingSint; + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetEncoding(count); + + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetEncoding(count); + + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetEncoding(count); + + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetEncoding(count); + case clang::Type::TypeOfExpr: + return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type) + ->getUnderlyingExpr() + ->getType() + .getAsOpaquePtr()) + .GetEncoding(count); + case clang::Type::TypeOf: + return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetEncoding(count); + case clang::Type::Decltype: + return CompilerType(this, llvm::cast<clang::DecltypeType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetEncoding(count); + case clang::Type::DependentSizedArray: + case clang::Type::DependentSizedExtVector: + case clang::Type::UnresolvedUsing: + case clang::Type::Attributed: + case clang::Type::TemplateTypeParm: + case clang::Type::SubstTemplateTypeParm: + case clang::Type::SubstTemplateTypeParmPack: + case clang::Type::InjectedClassName: + case clang::Type::DependentName: + case clang::Type::DependentTemplateSpecialization: + case clang::Type::PackExpansion: + case clang::Type::ObjCObject: + + case clang::Type::TemplateSpecialization: + case clang::Type::DeducedTemplateSpecialization: + case clang::Type::Atomic: + case clang::Type::Adjusted: + case clang::Type::Pipe: + break; + + // pointer type decayed from an array or function type. + case clang::Type::Decayed: + break; + case clang::Type::ObjCTypeParam: + break; + + case clang::Type::DependentAddressSpace: + break; + case clang::Type::MacroQualified: + break; + } + count = 0; + return lldb::eEncodingInvalid; +} + +lldb::Format ClangASTContext::GetFormat(lldb::opaque_compiler_type_t type) { + if (!type) + return lldb::eFormatDefault; + + clang::QualType qual_type(GetCanonicalQualType(type)); + + switch (qual_type->getTypeClass()) { + case clang::Type::UnaryTransform: + break; + + case clang::Type::FunctionNoProto: + case clang::Type::FunctionProto: + break; + + case clang::Type::IncompleteArray: + case clang::Type::VariableArray: + break; + + case clang::Type::ConstantArray: + return lldb::eFormatVoid; // no value + + case clang::Type::DependentVector: + case clang::Type::ExtVector: + case clang::Type::Vector: + break; + + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + // default: assert(0 && "Unknown builtin type!"); + case clang::BuiltinType::UnknownAny: + case clang::BuiltinType::Void: + case clang::BuiltinType::BoundMember: + break; + + case clang::BuiltinType::Bool: + return lldb::eFormatBoolean; + case clang::BuiltinType::Char_S: + case clang::BuiltinType::SChar: + case clang::BuiltinType::WChar_S: + case clang::BuiltinType::Char_U: + case clang::BuiltinType::UChar: + case clang::BuiltinType::WChar_U: + return lldb::eFormatChar; + case clang::BuiltinType::Char16: + return lldb::eFormatUnicode16; + case clang::BuiltinType::Char32: + return lldb::eFormatUnicode32; + case clang::BuiltinType::UShort: + return lldb::eFormatUnsigned; + case clang::BuiltinType::Short: + return lldb::eFormatDecimal; + case clang::BuiltinType::UInt: + return lldb::eFormatUnsigned; + case clang::BuiltinType::Int: + return lldb::eFormatDecimal; + case clang::BuiltinType::ULong: + return lldb::eFormatUnsigned; + case clang::BuiltinType::Long: + return lldb::eFormatDecimal; + case clang::BuiltinType::ULongLong: + return lldb::eFormatUnsigned; + case clang::BuiltinType::LongLong: + return lldb::eFormatDecimal; + case clang::BuiltinType::UInt128: + return lldb::eFormatUnsigned; + case clang::BuiltinType::Int128: + return lldb::eFormatDecimal; + case clang::BuiltinType::Half: + case clang::BuiltinType::Float: + case clang::BuiltinType::Double: + case clang::BuiltinType::LongDouble: + return lldb::eFormatFloat; + default: + return lldb::eFormatHex; + } + break; + case clang::Type::ObjCObjectPointer: + return lldb::eFormatHex; + case clang::Type::BlockPointer: + return lldb::eFormatHex; + case clang::Type::Pointer: + return lldb::eFormatHex; + case clang::Type::LValueReference: + case clang::Type::RValueReference: + return lldb::eFormatHex; + case clang::Type::MemberPointer: + break; + case clang::Type::Complex: { + if (qual_type->isComplexType()) + return lldb::eFormatComplex; + else + return lldb::eFormatComplexInteger; + } + case clang::Type::ObjCInterface: + break; + case clang::Type::Record: + break; + case clang::Type::Enum: + return lldb::eFormatEnum; + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetFormat(); + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetFormat(); + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetFormat(); + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetFormat(); + case clang::Type::TypeOfExpr: + return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type) + ->getUnderlyingExpr() + ->getType() + .getAsOpaquePtr()) + .GetFormat(); + case clang::Type::TypeOf: + return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetFormat(); + case clang::Type::Decltype: + return CompilerType(this, llvm::cast<clang::DecltypeType>(qual_type) + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetFormat(); + case clang::Type::DependentSizedArray: + case clang::Type::DependentSizedExtVector: + case clang::Type::UnresolvedUsing: + case clang::Type::Attributed: + case clang::Type::TemplateTypeParm: + case clang::Type::SubstTemplateTypeParm: + case clang::Type::SubstTemplateTypeParmPack: + case clang::Type::InjectedClassName: + case clang::Type::DependentName: + case clang::Type::DependentTemplateSpecialization: + case clang::Type::PackExpansion: + case clang::Type::ObjCObject: + + case clang::Type::TemplateSpecialization: + case clang::Type::DeducedTemplateSpecialization: + case clang::Type::Atomic: + case clang::Type::Adjusted: + case clang::Type::Pipe: + break; + + // pointer type decayed from an array or function type. + case clang::Type::Decayed: + break; + case clang::Type::ObjCTypeParam: + break; + + case clang::Type::DependentAddressSpace: + break; + case clang::Type::MacroQualified: + break; + } + // We don't know hot to display this type... + return lldb::eFormatBytes; +} + +static bool ObjCDeclHasIVars(clang::ObjCInterfaceDecl *class_interface_decl, + bool check_superclass) { + while (class_interface_decl) { + if (class_interface_decl->ivar_size() > 0) + return true; + + if (check_superclass) + class_interface_decl = class_interface_decl->getSuperClass(); + else + break; + } + return false; +} + +static Optional<SymbolFile::ArrayInfo> +GetDynamicArrayInfo(ClangASTContext &ast, SymbolFile *sym_file, + clang::QualType qual_type, + const ExecutionContext *exe_ctx) { + if (qual_type->isIncompleteArrayType()) + if (auto *metadata = ast.GetMetadata(qual_type.getAsOpaquePtr())) + return sym_file->GetDynamicArrayInfoForUID(metadata->GetUserID(), + exe_ctx); + return llvm::None; +} + +uint32_t ClangASTContext::GetNumChildren(lldb::opaque_compiler_type_t type, + bool omit_empty_base_classes, + const ExecutionContext *exe_ctx) { + if (!type) + return 0; + + uint32_t num_children = 0; + clang::QualType qual_type(GetQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + case clang::BuiltinType::ObjCId: // child is Class + case clang::BuiltinType::ObjCClass: // child is Class + num_children = 1; + break; + + default: + break; + } + break; + + case clang::Type::Complex: + return 0; + case clang::Type::Record: + if (GetCompleteQualType(getASTContext(), qual_type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + assert(record_decl); + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + if (cxx_record_decl) { + if (omit_empty_base_classes) { + // Check each base classes to see if it or any of its base classes + // contain any fields. This can help limit the noise in variable + // views by not having to show base classes that contain no members. + clang::CXXRecordDecl::base_class_const_iterator base_class, + base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class) { + const clang::CXXRecordDecl *base_class_decl = + llvm::cast<clang::CXXRecordDecl>( + base_class->getType() + ->getAs<clang::RecordType>() + ->getDecl()); + + // Skip empty base classes + if (!ClangASTContext::RecordHasFields(base_class_decl)) + continue; + + num_children++; + } + } else { + // Include all base classes + num_children += cxx_record_decl->getNumBases(); + } + } + clang::RecordDecl::field_iterator field, field_end; + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(); + field != field_end; ++field) + ++num_children; + } + break; + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (GetCompleteQualType(getASTContext(), qual_type)) { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + assert(objc_class_type); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl) { + + clang::ObjCInterfaceDecl *superclass_interface_decl = + class_interface_decl->getSuperClass(); + if (superclass_interface_decl) { + if (omit_empty_base_classes) { + if (ObjCDeclHasIVars(superclass_interface_decl, true)) + ++num_children; + } else + ++num_children; + } + + num_children += class_interface_decl->ivar_size(); + } + } + } + break; + + case clang::Type::ObjCObjectPointer: { + const clang::ObjCObjectPointerType *pointer_type = + llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()); + clang::QualType pointee_type = pointer_type->getPointeeType(); + uint32_t num_pointee_children = + CompilerType(this, pointee_type.getAsOpaquePtr()) + .GetNumChildren(omit_empty_base_classes, exe_ctx); + // If this type points to a simple type, then it has 1 child + if (num_pointee_children == 0) + num_children = 1; + else + num_children = num_pointee_children; + } break; + + case clang::Type::Vector: + case clang::Type::ExtVector: + num_children = + llvm::cast<clang::VectorType>(qual_type.getTypePtr())->getNumElements(); + break; + + case clang::Type::ConstantArray: + num_children = llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr()) + ->getSize() + .getLimitedValue(); + break; + case clang::Type::IncompleteArray: + if (auto array_info = + GetDynamicArrayInfo(*this, GetSymbolFile(), qual_type, exe_ctx)) + // Only 1-dimensional arrays are supported. + num_children = array_info->element_orders.size() + ? array_info->element_orders.back() + : 0; + break; + + case clang::Type::Pointer: { + const clang::PointerType *pointer_type = + llvm::cast<clang::PointerType>(qual_type.getTypePtr()); + clang::QualType pointee_type(pointer_type->getPointeeType()); + uint32_t num_pointee_children = + CompilerType(this, pointee_type.getAsOpaquePtr()) + .GetNumChildren(omit_empty_base_classes, exe_ctx); + if (num_pointee_children == 0) { + // We have a pointer to a pointee type that claims it has no children. We + // will want to look at + num_children = GetNumPointeeChildren(pointee_type); + } else + num_children = num_pointee_children; + } break; + + case clang::Type::LValueReference: + case clang::Type::RValueReference: { + const clang::ReferenceType *reference_type = + llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); + clang::QualType pointee_type = reference_type->getPointeeType(); + uint32_t num_pointee_children = + CompilerType(this, pointee_type.getAsOpaquePtr()) + .GetNumChildren(omit_empty_base_classes, exe_ctx); + // If this type points to a simple type, then it has 1 child + if (num_pointee_children == 0) + num_children = 1; + else + num_children = num_pointee_children; + } break; + + case clang::Type::Typedef: + num_children = CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetNumChildren(omit_empty_base_classes, exe_ctx); + break; + + case clang::Type::Auto: + num_children = CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetNumChildren(omit_empty_base_classes, exe_ctx); + break; + + case clang::Type::Elaborated: + num_children = + CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetNumChildren(omit_empty_base_classes, exe_ctx); + break; + + case clang::Type::Paren: + num_children = + CompilerType( + this, + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()) + .GetNumChildren(omit_empty_base_classes, exe_ctx); + break; + default: + break; + } + return num_children; +} + +CompilerType ClangASTContext::GetBuiltinTypeByName(ConstString name) { + return GetBasicType(GetBasicTypeEnumeration(name)); +} + +lldb::BasicType +ClangASTContext::GetBasicTypeEnumeration(lldb::opaque_compiler_type_t type) { + if (type) { + clang::QualType qual_type(GetQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + if (type_class == clang::Type::Builtin) { + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + case clang::BuiltinType::Void: + return eBasicTypeVoid; + case clang::BuiltinType::Bool: + return eBasicTypeBool; + case clang::BuiltinType::Char_S: + return eBasicTypeSignedChar; + case clang::BuiltinType::Char_U: + return eBasicTypeUnsignedChar; + case clang::BuiltinType::Char16: + return eBasicTypeChar16; + case clang::BuiltinType::Char32: + return eBasicTypeChar32; + case clang::BuiltinType::UChar: + return eBasicTypeUnsignedChar; + case clang::BuiltinType::SChar: + return eBasicTypeSignedChar; + case clang::BuiltinType::WChar_S: + return eBasicTypeSignedWChar; + case clang::BuiltinType::WChar_U: + return eBasicTypeUnsignedWChar; + case clang::BuiltinType::Short: + return eBasicTypeShort; + case clang::BuiltinType::UShort: + return eBasicTypeUnsignedShort; + case clang::BuiltinType::Int: + return eBasicTypeInt; + case clang::BuiltinType::UInt: + return eBasicTypeUnsignedInt; + case clang::BuiltinType::Long: + return eBasicTypeLong; + case clang::BuiltinType::ULong: + return eBasicTypeUnsignedLong; + case clang::BuiltinType::LongLong: + return eBasicTypeLongLong; + case clang::BuiltinType::ULongLong: + return eBasicTypeUnsignedLongLong; + case clang::BuiltinType::Int128: + return eBasicTypeInt128; + case clang::BuiltinType::UInt128: + return eBasicTypeUnsignedInt128; + + case clang::BuiltinType::Half: + return eBasicTypeHalf; + case clang::BuiltinType::Float: + return eBasicTypeFloat; + case clang::BuiltinType::Double: + return eBasicTypeDouble; + case clang::BuiltinType::LongDouble: + return eBasicTypeLongDouble; + + case clang::BuiltinType::NullPtr: + return eBasicTypeNullPtr; + case clang::BuiltinType::ObjCId: + return eBasicTypeObjCID; + case clang::BuiltinType::ObjCClass: + return eBasicTypeObjCClass; + case clang::BuiltinType::ObjCSel: + return eBasicTypeObjCSel; + default: + return eBasicTypeOther; + } + } + } + return eBasicTypeInvalid; +} + +void ClangASTContext::ForEachEnumerator( + lldb::opaque_compiler_type_t type, + std::function<bool(const CompilerType &integer_type, + ConstString name, + const llvm::APSInt &value)> const &callback) { + const clang::EnumType *enum_type = + llvm::dyn_cast<clang::EnumType>(GetCanonicalQualType(type)); + if (enum_type) { + const clang::EnumDecl *enum_decl = enum_type->getDecl(); + if (enum_decl) { + CompilerType integer_type(this, + enum_decl->getIntegerType().getAsOpaquePtr()); + + clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos; + for (enum_pos = enum_decl->enumerator_begin(), + enum_end_pos = enum_decl->enumerator_end(); + enum_pos != enum_end_pos; ++enum_pos) { + ConstString name(enum_pos->getNameAsString().c_str()); + if (!callback(integer_type, name, enum_pos->getInitVal())) + break; + } + } + } +} + +#pragma mark Aggregate Types + +uint32_t ClangASTContext::GetNumFields(lldb::opaque_compiler_type_t type) { + if (!type) + return 0; + + uint32_t count = 0; + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::RecordType *record_type = + llvm::dyn_cast<clang::RecordType>(qual_type.getTypePtr()); + if (record_type) { + clang::RecordDecl *record_decl = record_type->getDecl(); + if (record_decl) { + uint32_t field_idx = 0; + clang::RecordDecl::field_iterator field, field_end; + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(); + field != field_end; ++field) + ++field_idx; + count = field_idx; + } + } + } + break; + + case clang::Type::Typedef: + count = CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetNumFields(); + break; + + case clang::Type::Auto: + count = CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetNumFields(); + break; + + case clang::Type::Elaborated: + count = CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetNumFields(); + break; + + case clang::Type::Paren: + count = + CompilerType( + this, + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()) + .GetNumFields(); + break; + + case clang::Type::ObjCObjectPointer: { + const clang::ObjCObjectPointerType *objc_class_type = + qual_type->getAs<clang::ObjCObjectPointerType>(); + const clang::ObjCInterfaceType *objc_interface_type = + objc_class_type->getInterfaceType(); + if (objc_interface_type && + GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( + const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_interface_type->getDecl(); + if (class_interface_decl) { + count = class_interface_decl->ivar_size(); + } + } + break; + } + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (GetCompleteType(type)) { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl) + count = class_interface_decl->ivar_size(); + } + } + break; + + default: + break; + } + return count; +} + +static lldb::opaque_compiler_type_t +GetObjCFieldAtIndex(clang::ASTContext *ast, + clang::ObjCInterfaceDecl *class_interface_decl, size_t idx, + std::string &name, uint64_t *bit_offset_ptr, + uint32_t *bitfield_bit_size_ptr, bool *is_bitfield_ptr) { + if (class_interface_decl) { + if (idx < (class_interface_decl->ivar_size())) { + clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, + ivar_end = class_interface_decl->ivar_end(); + uint32_t ivar_idx = 0; + + for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end; + ++ivar_pos, ++ivar_idx) { + if (ivar_idx == idx) { + const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; + + clang::QualType ivar_qual_type(ivar_decl->getType()); + + name.assign(ivar_decl->getNameAsString()); + + if (bit_offset_ptr) { + const clang::ASTRecordLayout &interface_layout = + ast->getASTObjCInterfaceLayout(class_interface_decl); + *bit_offset_ptr = interface_layout.getFieldOffset(ivar_idx); + } + + const bool is_bitfield = ivar_pos->isBitField(); + + if (bitfield_bit_size_ptr) { + *bitfield_bit_size_ptr = 0; + + if (is_bitfield && ast) { + clang::Expr *bitfield_bit_size_expr = ivar_pos->getBitWidth(); + clang::Expr::EvalResult result; + if (bitfield_bit_size_expr && + bitfield_bit_size_expr->EvaluateAsInt(result, *ast)) { + llvm::APSInt bitfield_apsint = result.Val.getInt(); + *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue(); + } + } + } + if (is_bitfield_ptr) + *is_bitfield_ptr = is_bitfield; + + return ivar_qual_type.getAsOpaquePtr(); + } + } + } + } + return nullptr; +} + +CompilerType ClangASTContext::GetFieldAtIndex(lldb::opaque_compiler_type_t type, + size_t idx, std::string &name, + uint64_t *bit_offset_ptr, + uint32_t *bitfield_bit_size_ptr, + bool *is_bitfield_ptr) { + if (!type) + return CompilerType(); + + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + uint32_t field_idx = 0; + clang::RecordDecl::field_iterator field, field_end; + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(); + field != field_end; ++field, ++field_idx) { + if (idx == field_idx) { + // Print the member type if requested + // Print the member name and equal sign + name.assign(field->getNameAsString()); + + // Figure out the type byte size (field_type_info.first) and + // alignment (field_type_info.second) from the AST context. + if (bit_offset_ptr) { + const clang::ASTRecordLayout &record_layout = + getASTContext()->getASTRecordLayout(record_decl); + *bit_offset_ptr = record_layout.getFieldOffset(field_idx); + } + + const bool is_bitfield = field->isBitField(); + + if (bitfield_bit_size_ptr) { + *bitfield_bit_size_ptr = 0; + + if (is_bitfield) { + clang::Expr *bitfield_bit_size_expr = field->getBitWidth(); + clang::Expr::EvalResult result; + if (bitfield_bit_size_expr && + bitfield_bit_size_expr->EvaluateAsInt(result, + *getASTContext())) { + llvm::APSInt bitfield_apsint = result.Val.getInt(); + *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue(); + } + } + } + if (is_bitfield_ptr) + *is_bitfield_ptr = is_bitfield; + + return CompilerType(this, field->getType().getAsOpaquePtr()); + } + } + } + break; + + case clang::Type::ObjCObjectPointer: { + const clang::ObjCObjectPointerType *objc_class_type = + qual_type->getAs<clang::ObjCObjectPointerType>(); + const clang::ObjCInterfaceType *objc_interface_type = + objc_class_type->getInterfaceType(); + if (objc_interface_type && + GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( + const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_interface_type->getDecl(); + if (class_interface_decl) { + return CompilerType( + this, GetObjCFieldAtIndex(getASTContext(), class_interface_decl, + idx, name, bit_offset_ptr, + bitfield_bit_size_ptr, is_bitfield_ptr)); + } + } + break; + } + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (GetCompleteType(type)) { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + assert(objc_class_type); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + return CompilerType( + this, GetObjCFieldAtIndex(getASTContext(), class_interface_decl, + idx, name, bit_offset_ptr, + bitfield_bit_size_ptr, is_bitfield_ptr)); + } + } + break; + + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr, + is_bitfield_ptr); + + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr, + is_bitfield_ptr); + + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr, + is_bitfield_ptr); + + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr, + is_bitfield_ptr); + + default: + break; + } + return CompilerType(); +} + +uint32_t +ClangASTContext::GetNumDirectBaseClasses(lldb::opaque_compiler_type_t type) { + uint32_t count = 0; + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) + count = cxx_record_decl->getNumBases(); + } + break; + + case clang::Type::ObjCObjectPointer: + count = GetPointeeType(type).GetNumDirectBaseClasses(); + break; + + case clang::Type::ObjCObject: + if (GetCompleteType(type)) { + const clang::ObjCObjectType *objc_class_type = + qual_type->getAsObjCQualifiedInterfaceType(); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl && class_interface_decl->getSuperClass()) + count = 1; + } + } + break; + case clang::Type::ObjCInterface: + if (GetCompleteType(type)) { + const clang::ObjCInterfaceType *objc_interface_type = + qual_type->getAs<clang::ObjCInterfaceType>(); + if (objc_interface_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_interface_type->getInterface(); + + if (class_interface_decl && class_interface_decl->getSuperClass()) + count = 1; + } + } + break; + + case clang::Type::Typedef: + count = GetNumDirectBaseClasses(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()); + break; + + case clang::Type::Auto: + count = GetNumDirectBaseClasses(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()); + break; + + case clang::Type::Elaborated: + count = GetNumDirectBaseClasses(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()); + break; + + case clang::Type::Paren: + return GetNumDirectBaseClasses( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()); + + default: + break; + } + return count; +} + +uint32_t +ClangASTContext::GetNumVirtualBaseClasses(lldb::opaque_compiler_type_t type) { + uint32_t count = 0; + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) + count = cxx_record_decl->getNumVBases(); + } + break; + + case clang::Type::Typedef: + count = GetNumVirtualBaseClasses(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()); + break; + + case clang::Type::Auto: + count = GetNumVirtualBaseClasses(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()); + break; + + case clang::Type::Elaborated: + count = + GetNumVirtualBaseClasses(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()); + break; + + case clang::Type::Paren: + count = GetNumVirtualBaseClasses( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()); + break; + + default: + break; + } + return count; +} + +CompilerType ClangASTContext::GetDirectBaseClassAtIndex( + lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + uint32_t curr_idx = 0; + clang::CXXRecordDecl::base_class_const_iterator base_class, + base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class, ++curr_idx) { + if (curr_idx == idx) { + if (bit_offset_ptr) { + const clang::ASTRecordLayout &record_layout = + getASTContext()->getASTRecordLayout(cxx_record_decl); + const clang::CXXRecordDecl *base_class_decl = + llvm::cast<clang::CXXRecordDecl>( + base_class->getType() + ->getAs<clang::RecordType>() + ->getDecl()); + if (base_class->isVirtual()) + *bit_offset_ptr = + record_layout.getVBaseClassOffset(base_class_decl) + .getQuantity() * + 8; + else + *bit_offset_ptr = + record_layout.getBaseClassOffset(base_class_decl) + .getQuantity() * + 8; + } + return CompilerType(this, base_class->getType().getAsOpaquePtr()); + } + } + } + } + break; + + case clang::Type::ObjCObjectPointer: + return GetPointeeType(type).GetDirectBaseClassAtIndex(idx, bit_offset_ptr); + + case clang::Type::ObjCObject: + if (idx == 0 && GetCompleteType(type)) { + const clang::ObjCObjectType *objc_class_type = + qual_type->getAsObjCQualifiedInterfaceType(); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl) { + clang::ObjCInterfaceDecl *superclass_interface_decl = + class_interface_decl->getSuperClass(); + if (superclass_interface_decl) { + if (bit_offset_ptr) + *bit_offset_ptr = 0; + return CompilerType(this, + getASTContext()->getObjCInterfaceType( + superclass_interface_decl).getAsOpaquePtr()); + } + } + } + } + break; + case clang::Type::ObjCInterface: + if (idx == 0 && GetCompleteType(type)) { + const clang::ObjCObjectType *objc_interface_type = + qual_type->getAs<clang::ObjCInterfaceType>(); + if (objc_interface_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_interface_type->getInterface(); + + if (class_interface_decl) { + clang::ObjCInterfaceDecl *superclass_interface_decl = + class_interface_decl->getSuperClass(); + if (superclass_interface_decl) { + if (bit_offset_ptr) + *bit_offset_ptr = 0; + return CompilerType( + this, getASTContext() + ->getObjCInterfaceType(superclass_interface_decl) + .getAsOpaquePtr()); + } + } + } + } + break; + + case clang::Type::Typedef: + return GetDirectBaseClassAtIndex(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + idx, bit_offset_ptr); + + case clang::Type::Auto: + return GetDirectBaseClassAtIndex(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + idx, bit_offset_ptr); + + case clang::Type::Elaborated: + return GetDirectBaseClassAtIndex( + llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + idx, bit_offset_ptr); + + case clang::Type::Paren: + return GetDirectBaseClassAtIndex( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + idx, bit_offset_ptr); + + default: + break; + } + return CompilerType(); +} + +CompilerType ClangASTContext::GetVirtualBaseClassAtIndex( + lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + uint32_t curr_idx = 0; + clang::CXXRecordDecl::base_class_const_iterator base_class, + base_class_end; + for (base_class = cxx_record_decl->vbases_begin(), + base_class_end = cxx_record_decl->vbases_end(); + base_class != base_class_end; ++base_class, ++curr_idx) { + if (curr_idx == idx) { + if (bit_offset_ptr) { + const clang::ASTRecordLayout &record_layout = + getASTContext()->getASTRecordLayout(cxx_record_decl); + const clang::CXXRecordDecl *base_class_decl = + llvm::cast<clang::CXXRecordDecl>( + base_class->getType() + ->getAs<clang::RecordType>() + ->getDecl()); + *bit_offset_ptr = + record_layout.getVBaseClassOffset(base_class_decl) + .getQuantity() * + 8; + } + return CompilerType(this, base_class->getType().getAsOpaquePtr()); + } + } + } + } + break; + + case clang::Type::Typedef: + return GetVirtualBaseClassAtIndex(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + idx, bit_offset_ptr); + + case clang::Type::Auto: + return GetVirtualBaseClassAtIndex(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + idx, bit_offset_ptr); + + case clang::Type::Elaborated: + return GetVirtualBaseClassAtIndex( + llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + idx, bit_offset_ptr); + + case clang::Type::Paren: + return GetVirtualBaseClassAtIndex( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + idx, bit_offset_ptr); + + default: + break; + } + return CompilerType(); +} + +// If a pointer to a pointee type (the clang_type arg) says that it has no +// children, then we either need to trust it, or override it and return a +// different result. For example, an "int *" has one child that is an integer, +// but a function pointer doesn't have any children. Likewise if a Record type +// claims it has no children, then there really is nothing to show. +uint32_t ClangASTContext::GetNumPointeeChildren(clang::QualType type) { + if (type.isNull()) + return 0; + + clang::QualType qual_type(type.getCanonicalType()); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Builtin: + switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { + case clang::BuiltinType::UnknownAny: + case clang::BuiltinType::Void: + case clang::BuiltinType::NullPtr: + case clang::BuiltinType::OCLEvent: + case clang::BuiltinType::OCLImage1dRO: + case clang::BuiltinType::OCLImage1dWO: + case clang::BuiltinType::OCLImage1dRW: + case clang::BuiltinType::OCLImage1dArrayRO: + case clang::BuiltinType::OCLImage1dArrayWO: + case clang::BuiltinType::OCLImage1dArrayRW: + case clang::BuiltinType::OCLImage1dBufferRO: + case clang::BuiltinType::OCLImage1dBufferWO: + case clang::BuiltinType::OCLImage1dBufferRW: + case clang::BuiltinType::OCLImage2dRO: + case clang::BuiltinType::OCLImage2dWO: + case clang::BuiltinType::OCLImage2dRW: + case clang::BuiltinType::OCLImage2dArrayRO: + case clang::BuiltinType::OCLImage2dArrayWO: + case clang::BuiltinType::OCLImage2dArrayRW: + case clang::BuiltinType::OCLImage3dRO: + case clang::BuiltinType::OCLImage3dWO: + case clang::BuiltinType::OCLImage3dRW: + case clang::BuiltinType::OCLSampler: + return 0; + case clang::BuiltinType::Bool: + case clang::BuiltinType::Char_U: + case clang::BuiltinType::UChar: + case clang::BuiltinType::WChar_U: + case clang::BuiltinType::Char16: + case clang::BuiltinType::Char32: + case clang::BuiltinType::UShort: + case clang::BuiltinType::UInt: + case clang::BuiltinType::ULong: + case clang::BuiltinType::ULongLong: + case clang::BuiltinType::UInt128: + case clang::BuiltinType::Char_S: + case clang::BuiltinType::SChar: + case clang::BuiltinType::WChar_S: + case clang::BuiltinType::Short: + case clang::BuiltinType::Int: + case clang::BuiltinType::Long: + case clang::BuiltinType::LongLong: + case clang::BuiltinType::Int128: + case clang::BuiltinType::Float: + case clang::BuiltinType::Double: + case clang::BuiltinType::LongDouble: + case clang::BuiltinType::Dependent: + case clang::BuiltinType::Overload: + case clang::BuiltinType::ObjCId: + case clang::BuiltinType::ObjCClass: + case clang::BuiltinType::ObjCSel: + case clang::BuiltinType::BoundMember: + case clang::BuiltinType::Half: + case clang::BuiltinType::ARCUnbridgedCast: + case clang::BuiltinType::PseudoObject: + case clang::BuiltinType::BuiltinFn: + case clang::BuiltinType::OMPArraySection: + return 1; + default: + return 0; + } + break; + + case clang::Type::Complex: + return 1; + case clang::Type::Pointer: + return 1; + case clang::Type::BlockPointer: + return 0; // If block pointers don't have debug info, then no children for + // them + case clang::Type::LValueReference: + return 1; + case clang::Type::RValueReference: + return 1; + case clang::Type::MemberPointer: + return 0; + case clang::Type::ConstantArray: + return 0; + case clang::Type::IncompleteArray: + return 0; + case clang::Type::VariableArray: + return 0; + case clang::Type::DependentSizedArray: + return 0; + case clang::Type::DependentSizedExtVector: + return 0; + case clang::Type::Vector: + return 0; + case clang::Type::ExtVector: + return 0; + case clang::Type::FunctionProto: + return 0; // When we function pointers, they have no children... + case clang::Type::FunctionNoProto: + return 0; // When we function pointers, they have no children... + case clang::Type::UnresolvedUsing: + return 0; + case clang::Type::Paren: + return GetNumPointeeChildren( + llvm::cast<clang::ParenType>(qual_type)->desugar()); + case clang::Type::Typedef: + return GetNumPointeeChildren(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType()); + case clang::Type::Auto: + return GetNumPointeeChildren( + llvm::cast<clang::AutoType>(qual_type)->getDeducedType()); + case clang::Type::Elaborated: + return GetNumPointeeChildren( + llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType()); + case clang::Type::TypeOfExpr: + return GetNumPointeeChildren(llvm::cast<clang::TypeOfExprType>(qual_type) + ->getUnderlyingExpr() + ->getType()); + case clang::Type::TypeOf: + return GetNumPointeeChildren( + llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType()); + case clang::Type::Decltype: + return GetNumPointeeChildren( + llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType()); + case clang::Type::Record: + return 0; + case clang::Type::Enum: + return 1; + case clang::Type::TemplateTypeParm: + return 1; + case clang::Type::SubstTemplateTypeParm: + return 1; + case clang::Type::TemplateSpecialization: + return 1; + case clang::Type::InjectedClassName: + return 0; + case clang::Type::DependentName: + return 1; + case clang::Type::DependentTemplateSpecialization: + return 1; + case clang::Type::ObjCObject: + return 0; + case clang::Type::ObjCInterface: + return 0; + case clang::Type::ObjCObjectPointer: + return 1; + default: + break; + } + return 0; +} + +CompilerType ClangASTContext::GetChildCompilerTypeAtIndex( + lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, size_t idx, + bool transparent_pointers, bool omit_empty_base_classes, + bool ignore_array_bounds, std::string &child_name, + uint32_t &child_byte_size, int32_t &child_byte_offset, + uint32_t &child_bitfield_bit_size, uint32_t &child_bitfield_bit_offset, + bool &child_is_base_class, bool &child_is_deref_of_parent, + ValueObject *valobj, uint64_t &language_flags) { + if (!type) + return CompilerType(); + + auto get_exe_scope = [&exe_ctx]() { + return exe_ctx ? exe_ctx->GetBestExecutionContextScope() : nullptr; + }; + + clang::QualType parent_qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass parent_type_class = + parent_qual_type->getTypeClass(); + child_bitfield_bit_size = 0; + child_bitfield_bit_offset = 0; + child_is_base_class = false; + language_flags = 0; + + const bool idx_is_valid = + idx < GetNumChildren(type, omit_empty_base_classes, exe_ctx); + int32_t bit_offset; + switch (parent_type_class) { + case clang::Type::Builtin: + if (idx_is_valid) { + switch (llvm::cast<clang::BuiltinType>(parent_qual_type)->getKind()) { + case clang::BuiltinType::ObjCId: + case clang::BuiltinType::ObjCClass: + child_name = "isa"; + child_byte_size = + getASTContext()->getTypeSize(getASTContext()->ObjCBuiltinClassTy) / + CHAR_BIT; + return CompilerType( + this, getASTContext()->ObjCBuiltinClassTy.getAsOpaquePtr()); + + default: + break; + } + } + break; + + case clang::Type::Record: + if (idx_is_valid && GetCompleteType(type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(parent_qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + assert(record_decl); + const clang::ASTRecordLayout &record_layout = + getASTContext()->getASTRecordLayout(record_decl); + uint32_t child_idx = 0; + + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + if (cxx_record_decl) { + // We might have base classes to print out first + clang::CXXRecordDecl::base_class_const_iterator base_class, + base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class) { + const clang::CXXRecordDecl *base_class_decl = nullptr; + + // Skip empty base classes + if (omit_empty_base_classes) { + base_class_decl = llvm::cast<clang::CXXRecordDecl>( + base_class->getType()->getAs<clang::RecordType>()->getDecl()); + if (!ClangASTContext::RecordHasFields(base_class_decl)) + continue; + } + + if (idx == child_idx) { + if (base_class_decl == nullptr) + base_class_decl = llvm::cast<clang::CXXRecordDecl>( + base_class->getType()->getAs<clang::RecordType>()->getDecl()); + + if (base_class->isVirtual()) { + bool handled = false; + if (valobj) { + clang::VTableContextBase *vtable_ctx = + getASTContext()->getVTableContext(); + if (vtable_ctx) + handled = GetVBaseBitOffset(*vtable_ctx, *valobj, + record_layout, cxx_record_decl, + base_class_decl, bit_offset); + } + if (!handled) + bit_offset = record_layout.getVBaseClassOffset(base_class_decl) + .getQuantity() * + 8; + } else + bit_offset = record_layout.getBaseClassOffset(base_class_decl) + .getQuantity() * + 8; + + // Base classes should be a multiple of 8 bits in size + child_byte_offset = bit_offset / 8; + CompilerType base_class_clang_type( + this, base_class->getType().getAsOpaquePtr()); + child_name = base_class_clang_type.GetTypeName().AsCString(""); + Optional<uint64_t> size = + base_class_clang_type.GetBitSize(get_exe_scope()); + if (!size) + return {}; + uint64_t base_class_clang_type_bit_size = *size; + + // Base classes bit sizes should be a multiple of 8 bits in size + assert(base_class_clang_type_bit_size % 8 == 0); + child_byte_size = base_class_clang_type_bit_size / 8; + child_is_base_class = true; + return base_class_clang_type; + } + // We don't increment the child index in the for loop since we might + // be skipping empty base classes + ++child_idx; + } + } + // Make sure index is in range... + uint32_t field_idx = 0; + clang::RecordDecl::field_iterator field, field_end; + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(); + field != field_end; ++field, ++field_idx, ++child_idx) { + if (idx == child_idx) { + // Print the member type if requested + // Print the member name and equal sign + child_name.assign(field->getNameAsString()); + + // Figure out the type byte size (field_type_info.first) and + // alignment (field_type_info.second) from the AST context. + CompilerType field_clang_type(this, + field->getType().getAsOpaquePtr()); + assert(field_idx < record_layout.getFieldCount()); + Optional<uint64_t> size = + field_clang_type.GetByteSize(get_exe_scope()); + if (!size) + return {}; + child_byte_size = *size; + const uint32_t child_bit_size = child_byte_size * 8; + + // Figure out the field offset within the current struct/union/class + // type + bit_offset = record_layout.getFieldOffset(field_idx); + if (ClangASTContext::FieldIsBitfield(getASTContext(), *field, + child_bitfield_bit_size)) { + child_bitfield_bit_offset = bit_offset % child_bit_size; + const uint32_t child_bit_offset = + bit_offset - child_bitfield_bit_offset; + child_byte_offset = child_bit_offset / 8; + } else { + child_byte_offset = bit_offset / 8; + } + + return field_clang_type; + } + } + } + break; + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (idx_is_valid && GetCompleteType(type)) { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(parent_qual_type.getTypePtr()); + assert(objc_class_type); + if (objc_class_type) { + uint32_t child_idx = 0; + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl) { + + const clang::ASTRecordLayout &interface_layout = + getASTContext()->getASTObjCInterfaceLayout(class_interface_decl); + clang::ObjCInterfaceDecl *superclass_interface_decl = + class_interface_decl->getSuperClass(); + if (superclass_interface_decl) { + if (omit_empty_base_classes) { + CompilerType base_class_clang_type( + this, getASTContext() + ->getObjCInterfaceType(superclass_interface_decl) + .getAsOpaquePtr()); + if (base_class_clang_type.GetNumChildren(omit_empty_base_classes, + exe_ctx) > 0) { + if (idx == 0) { + clang::QualType ivar_qual_type( + getASTContext()->getObjCInterfaceType( + superclass_interface_decl)); + + child_name.assign( + superclass_interface_decl->getNameAsString()); + + clang::TypeInfo ivar_type_info = + getASTContext()->getTypeInfo(ivar_qual_type.getTypePtr()); + + child_byte_size = ivar_type_info.Width / 8; + child_byte_offset = 0; + child_is_base_class = true; + + return CompilerType(this, ivar_qual_type.getAsOpaquePtr()); + } + + ++child_idx; + } + } else + ++child_idx; + } + + const uint32_t superclass_idx = child_idx; + + if (idx < (child_idx + class_interface_decl->ivar_size())) { + clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, + ivar_end = class_interface_decl->ivar_end(); + + for (ivar_pos = class_interface_decl->ivar_begin(); + ivar_pos != ivar_end; ++ivar_pos) { + if (child_idx == idx) { + clang::ObjCIvarDecl *ivar_decl = *ivar_pos; + + clang::QualType ivar_qual_type(ivar_decl->getType()); + + child_name.assign(ivar_decl->getNameAsString()); + + clang::TypeInfo ivar_type_info = + getASTContext()->getTypeInfo(ivar_qual_type.getTypePtr()); + + child_byte_size = ivar_type_info.Width / 8; + + // Figure out the field offset within the current + // struct/union/class type For ObjC objects, we can't trust the + // bit offset we get from the Clang AST, since that doesn't + // account for the space taken up by unbacked properties, or + // from the changing size of base classes that are newer than + // this class. So if we have a process around that we can ask + // about this object, do so. + child_byte_offset = LLDB_INVALID_IVAR_OFFSET; + Process *process = nullptr; + if (exe_ctx) + process = exe_ctx->GetProcessPtr(); + if (process) { + ObjCLanguageRuntime *objc_runtime = + ObjCLanguageRuntime::Get(*process); + if (objc_runtime != nullptr) { + CompilerType parent_ast_type( + this, parent_qual_type.getAsOpaquePtr()); + child_byte_offset = objc_runtime->GetByteOffsetForIvar( + parent_ast_type, ivar_decl->getNameAsString().c_str()); + } + } + + // Setting this to INT32_MAX to make sure we don't compute it + // twice... + bit_offset = INT32_MAX; + + if (child_byte_offset == + static_cast<int32_t>(LLDB_INVALID_IVAR_OFFSET)) { + bit_offset = interface_layout.getFieldOffset(child_idx - + superclass_idx); + child_byte_offset = bit_offset / 8; + } + + // Note, the ObjC Ivar Byte offset is just that, it doesn't + // account for the bit offset of a bitfield within its + // containing object. So regardless of where we get the byte + // offset from, we still need to get the bit offset for + // bitfields from the layout. + + if (ClangASTContext::FieldIsBitfield(getASTContext(), ivar_decl, + child_bitfield_bit_size)) { + if (bit_offset == INT32_MAX) + bit_offset = interface_layout.getFieldOffset( + child_idx - superclass_idx); + + child_bitfield_bit_offset = bit_offset % 8; + } + return CompilerType(this, ivar_qual_type.getAsOpaquePtr()); + } + ++child_idx; + } + } + } + } + } + break; + + case clang::Type::ObjCObjectPointer: + if (idx_is_valid) { + CompilerType pointee_clang_type(GetPointeeType(type)); + + if (transparent_pointers && pointee_clang_type.IsAggregateType()) { + child_is_deref_of_parent = false; + bool tmp_child_is_deref_of_parent = false; + return pointee_clang_type.GetChildCompilerTypeAtIndex( + exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, + child_is_base_class, tmp_child_is_deref_of_parent, valobj, + language_flags); + } else { + child_is_deref_of_parent = true; + const char *parent_name = + valobj ? valobj->GetName().GetCString() : nullptr; + if (parent_name) { + child_name.assign(1, '*'); + child_name += parent_name; + } + + // We have a pointer to an simple type + if (idx == 0 && pointee_clang_type.GetCompleteType()) { + if (Optional<uint64_t> size = + pointee_clang_type.GetByteSize(get_exe_scope())) { + child_byte_size = *size; + child_byte_offset = 0; + return pointee_clang_type; + } + } + } + } + break; + + case clang::Type::Vector: + case clang::Type::ExtVector: + if (idx_is_valid) { + const clang::VectorType *array = + llvm::cast<clang::VectorType>(parent_qual_type.getTypePtr()); + if (array) { + CompilerType element_type(this, + array->getElementType().getAsOpaquePtr()); + if (element_type.GetCompleteType()) { + char element_name[64]; + ::snprintf(element_name, sizeof(element_name), "[%" PRIu64 "]", + static_cast<uint64_t>(idx)); + child_name.assign(element_name); + if (Optional<uint64_t> size = + element_type.GetByteSize(get_exe_scope())) { + child_byte_size = *size; + child_byte_offset = (int32_t)idx * (int32_t)child_byte_size; + return element_type; + } + } + } + } + break; + + case clang::Type::ConstantArray: + case clang::Type::IncompleteArray: + if (ignore_array_bounds || idx_is_valid) { + const clang::ArrayType *array = GetQualType(type)->getAsArrayTypeUnsafe(); + if (array) { + CompilerType element_type(this, + array->getElementType().getAsOpaquePtr()); + if (element_type.GetCompleteType()) { + child_name = llvm::formatv("[{0}]", idx); + if (Optional<uint64_t> size = + element_type.GetByteSize(get_exe_scope())) { + child_byte_size = *size; + child_byte_offset = (int32_t)idx * (int32_t)child_byte_size; + return element_type; + } + } + } + } + break; + + case clang::Type::Pointer: { + CompilerType pointee_clang_type(GetPointeeType(type)); + + // Don't dereference "void *" pointers + if (pointee_clang_type.IsVoidType()) + return CompilerType(); + + if (transparent_pointers && pointee_clang_type.IsAggregateType()) { + child_is_deref_of_parent = false; + bool tmp_child_is_deref_of_parent = false; + return pointee_clang_type.GetChildCompilerTypeAtIndex( + exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, + child_is_base_class, tmp_child_is_deref_of_parent, valobj, + language_flags); + } else { + child_is_deref_of_parent = true; + + const char *parent_name = + valobj ? valobj->GetName().GetCString() : nullptr; + if (parent_name) { + child_name.assign(1, '*'); + child_name += parent_name; + } + + // We have a pointer to an simple type + if (idx == 0) { + if (Optional<uint64_t> size = + pointee_clang_type.GetByteSize(get_exe_scope())) { + child_byte_size = *size; + child_byte_offset = 0; + return pointee_clang_type; + } + } + } + break; + } + + case clang::Type::LValueReference: + case clang::Type::RValueReference: + if (idx_is_valid) { + const clang::ReferenceType *reference_type = + llvm::cast<clang::ReferenceType>(parent_qual_type.getTypePtr()); + CompilerType pointee_clang_type( + this, reference_type->getPointeeType().getAsOpaquePtr()); + if (transparent_pointers && pointee_clang_type.IsAggregateType()) { + child_is_deref_of_parent = false; + bool tmp_child_is_deref_of_parent = false; + return pointee_clang_type.GetChildCompilerTypeAtIndex( + exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, + child_is_base_class, tmp_child_is_deref_of_parent, valobj, + language_flags); + } else { + const char *parent_name = + valobj ? valobj->GetName().GetCString() : nullptr; + if (parent_name) { + child_name.assign(1, '&'); + child_name += parent_name; + } + + // We have a pointer to an simple type + if (idx == 0) { + if (Optional<uint64_t> size = + pointee_clang_type.GetByteSize(get_exe_scope())) { + child_byte_size = *size; + child_byte_offset = 0; + return pointee_clang_type; + } + } + } + } + break; + + case clang::Type::Typedef: { + CompilerType typedefed_clang_type( + this, llvm::cast<clang::TypedefType>(parent_qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()); + return typedefed_clang_type.GetChildCompilerTypeAtIndex( + exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class, + child_is_deref_of_parent, valobj, language_flags); + } break; + + case clang::Type::Auto: { + CompilerType elaborated_clang_type( + this, llvm::cast<clang::AutoType>(parent_qual_type) + ->getDeducedType() + .getAsOpaquePtr()); + return elaborated_clang_type.GetChildCompilerTypeAtIndex( + exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class, + child_is_deref_of_parent, valobj, language_flags); + } + + case clang::Type::Elaborated: { + CompilerType elaborated_clang_type( + this, llvm::cast<clang::ElaboratedType>(parent_qual_type) + ->getNamedType() + .getAsOpaquePtr()); + return elaborated_clang_type.GetChildCompilerTypeAtIndex( + exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class, + child_is_deref_of_parent, valobj, language_flags); + } + + case clang::Type::Paren: { + CompilerType paren_clang_type(this, + llvm::cast<clang::ParenType>(parent_qual_type) + ->desugar() + .getAsOpaquePtr()); + return paren_clang_type.GetChildCompilerTypeAtIndex( + exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class, + child_is_deref_of_parent, valobj, language_flags); + } + + default: + break; + } + return CompilerType(); +} + +static uint32_t GetIndexForRecordBase(const clang::RecordDecl *record_decl, + const clang::CXXBaseSpecifier *base_spec, + bool omit_empty_base_classes) { + uint32_t child_idx = 0; + + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + + // const char *super_name = record_decl->getNameAsCString(); + // const char *base_name = + // base_spec->getType()->getAs<clang::RecordType>()->getDecl()->getNameAsCString(); + // printf ("GetIndexForRecordChild (%s, %s)\n", super_name, base_name); + // + if (cxx_record_decl) { + clang::CXXRecordDecl::base_class_const_iterator base_class, base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class) { + if (omit_empty_base_classes) { + if (BaseSpecifierIsEmpty(base_class)) + continue; + } + + // printf ("GetIndexForRecordChild (%s, %s) base[%u] = %s\n", + // super_name, base_name, + // child_idx, + // base_class->getType()->getAs<clang::RecordType>()->getDecl()->getNameAsCString()); + // + // + if (base_class == base_spec) + return child_idx; + ++child_idx; + } + } + + return UINT32_MAX; +} + +static uint32_t GetIndexForRecordChild(const clang::RecordDecl *record_decl, + clang::NamedDecl *canonical_decl, + bool omit_empty_base_classes) { + uint32_t child_idx = ClangASTContext::GetNumBaseClasses( + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl), + omit_empty_base_classes); + + clang::RecordDecl::field_iterator field, field_end; + for (field = record_decl->field_begin(), field_end = record_decl->field_end(); + field != field_end; ++field, ++child_idx) { + if (field->getCanonicalDecl() == canonical_decl) + return child_idx; + } + + return UINT32_MAX; +} + +// Look for a child member (doesn't include base classes, but it does include +// their members) in the type hierarchy. Returns an index path into +// "clang_type" on how to reach the appropriate member. +// +// class A +// { +// public: +// int m_a; +// int m_b; +// }; +// +// class B +// { +// }; +// +// class C : +// public B, +// public A +// { +// }; +// +// If we have a clang type that describes "class C", and we wanted to looked +// "m_b" in it: +// +// With omit_empty_base_classes == false we would get an integer array back +// with: { 1, 1 } The first index 1 is the child index for "class A" within +// class C The second index 1 is the child index for "m_b" within class A +// +// With omit_empty_base_classes == true we would get an integer array back +// with: { 0, 1 } The first index 0 is the child index for "class A" within +// class C (since class B doesn't have any members it doesn't count) The second +// index 1 is the child index for "m_b" within class A + +size_t ClangASTContext::GetIndexOfChildMemberWithName( + lldb::opaque_compiler_type_t type, const char *name, + bool omit_empty_base_classes, std::vector<uint32_t> &child_indexes) { + if (type && name && name[0]) { + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + + assert(record_decl); + uint32_t child_idx = 0; + + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + + // Try and find a field that matches NAME + clang::RecordDecl::field_iterator field, field_end; + llvm::StringRef name_sref(name); + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(); + field != field_end; ++field, ++child_idx) { + llvm::StringRef field_name = field->getName(); + if (field_name.empty()) { + CompilerType field_type(this, field->getType().getAsOpaquePtr()); + child_indexes.push_back(child_idx); + if (field_type.GetIndexOfChildMemberWithName( + name, omit_empty_base_classes, child_indexes)) + return child_indexes.size(); + child_indexes.pop_back(); + + } else if (field_name.equals(name_sref)) { + // We have to add on the number of base classes to this index! + child_indexes.push_back( + child_idx + ClangASTContext::GetNumBaseClasses( + cxx_record_decl, omit_empty_base_classes)); + return child_indexes.size(); + } + } + + if (cxx_record_decl) { + const clang::RecordDecl *parent_record_decl = cxx_record_decl; + + // printf ("parent = %s\n", parent_record_decl->getNameAsCString()); + + // const Decl *root_cdecl = cxx_record_decl->getCanonicalDecl(); + // Didn't find things easily, lets let clang do its thang... + clang::IdentifierInfo &ident_ref = + getASTContext()->Idents.get(name_sref); + clang::DeclarationName decl_name(&ident_ref); + + clang::CXXBasePaths paths; + if (cxx_record_decl->lookupInBases( + [decl_name](const clang::CXXBaseSpecifier *specifier, + clang::CXXBasePath &path) { + return clang::CXXRecordDecl::FindOrdinaryMember( + specifier, path, decl_name); + }, + paths)) { + clang::CXXBasePaths::const_paths_iterator path, + path_end = paths.end(); + for (path = paths.begin(); path != path_end; ++path) { + const size_t num_path_elements = path->size(); + for (size_t e = 0; e < num_path_elements; ++e) { + clang::CXXBasePathElement elem = (*path)[e]; + + child_idx = GetIndexForRecordBase(parent_record_decl, elem.Base, + omit_empty_base_classes); + if (child_idx == UINT32_MAX) { + child_indexes.clear(); + return 0; + } else { + child_indexes.push_back(child_idx); + parent_record_decl = llvm::cast<clang::RecordDecl>( + elem.Base->getType() + ->getAs<clang::RecordType>() + ->getDecl()); + } + } + for (clang::NamedDecl *path_decl : path->Decls) { + child_idx = GetIndexForRecordChild( + parent_record_decl, path_decl, omit_empty_base_classes); + if (child_idx == UINT32_MAX) { + child_indexes.clear(); + return 0; + } else { + child_indexes.push_back(child_idx); + } + } + } + return child_indexes.size(); + } + } + } + break; + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (GetCompleteType(type)) { + llvm::StringRef name_sref(name); + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + assert(objc_class_type); + if (objc_class_type) { + uint32_t child_idx = 0; + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl) { + clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, + ivar_end = class_interface_decl->ivar_end(); + clang::ObjCInterfaceDecl *superclass_interface_decl = + class_interface_decl->getSuperClass(); + + for (ivar_pos = class_interface_decl->ivar_begin(); + ivar_pos != ivar_end; ++ivar_pos, ++child_idx) { + const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; + + if (ivar_decl->getName().equals(name_sref)) { + if ((!omit_empty_base_classes && superclass_interface_decl) || + (omit_empty_base_classes && + ObjCDeclHasIVars(superclass_interface_decl, true))) + ++child_idx; + + child_indexes.push_back(child_idx); + return child_indexes.size(); + } + } + + if (superclass_interface_decl) { + // The super class index is always zero for ObjC classes, so we + // push it onto the child indexes in case we find an ivar in our + // superclass... + child_indexes.push_back(0); + + CompilerType superclass_clang_type( + this, getASTContext() + ->getObjCInterfaceType(superclass_interface_decl) + .getAsOpaquePtr()); + if (superclass_clang_type.GetIndexOfChildMemberWithName( + name, omit_empty_base_classes, child_indexes)) { + // We did find an ivar in a superclass so just return the + // results! + return child_indexes.size(); + } + + // We didn't find an ivar matching "name" in our superclass, pop + // the superclass zero index that we pushed on above. + child_indexes.pop_back(); + } + } + } + } + break; + + case clang::Type::ObjCObjectPointer: { + CompilerType objc_object_clang_type( + this, llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) + ->getPointeeType() + .getAsOpaquePtr()); + return objc_object_clang_type.GetIndexOfChildMemberWithName( + name, omit_empty_base_classes, child_indexes); + } break; + + case clang::Type::ConstantArray: { + // const clang::ConstantArrayType *array = + // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr()); + // const uint64_t element_count = + // array->getSize().getLimitedValue(); + // + // if (idx < element_count) + // { + // std::pair<uint64_t, unsigned> field_type_info = + // ast->getTypeInfo(array->getElementType()); + // + // char element_name[32]; + // ::snprintf (element_name, sizeof (element_name), + // "%s[%u]", parent_name ? parent_name : "", idx); + // + // child_name.assign(element_name); + // assert(field_type_info.first % 8 == 0); + // child_byte_size = field_type_info.first / 8; + // child_byte_offset = idx * child_byte_size; + // return array->getElementType().getAsOpaquePtr(); + // } + } break; + + // case clang::Type::MemberPointerType: + // { + // MemberPointerType *mem_ptr_type = + // llvm::cast<MemberPointerType>(qual_type.getTypePtr()); + // clang::QualType pointee_type = + // mem_ptr_type->getPointeeType(); + // + // if (ClangASTContext::IsAggregateType + // (pointee_type.getAsOpaquePtr())) + // { + // return GetIndexOfChildWithName (ast, + // mem_ptr_type->getPointeeType().getAsOpaquePtr(), + // name); + // } + // } + // break; + // + case clang::Type::LValueReference: + case clang::Type::RValueReference: { + const clang::ReferenceType *reference_type = + llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); + clang::QualType pointee_type(reference_type->getPointeeType()); + CompilerType pointee_clang_type(this, pointee_type.getAsOpaquePtr()); + + if (pointee_clang_type.IsAggregateType()) { + return pointee_clang_type.GetIndexOfChildMemberWithName( + name, omit_empty_base_classes, child_indexes); + } + } break; + + case clang::Type::Pointer: { + CompilerType pointee_clang_type(GetPointeeType(type)); + + if (pointee_clang_type.IsAggregateType()) { + return pointee_clang_type.GetIndexOfChildMemberWithName( + name, omit_empty_base_classes, child_indexes); + } + } break; + + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetIndexOfChildMemberWithName(name, omit_empty_base_classes, + child_indexes); + + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetIndexOfChildMemberWithName(name, omit_empty_base_classes, + child_indexes); + + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetIndexOfChildMemberWithName(name, omit_empty_base_classes, + child_indexes); + + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetIndexOfChildMemberWithName(name, omit_empty_base_classes, + child_indexes); + + default: + break; + } + } + return 0; +} + +// Get the index of the child of "clang_type" whose name matches. This function +// doesn't descend into the children, but only looks one level deep and name +// matches can include base class names. + +uint32_t +ClangASTContext::GetIndexOfChildWithName(lldb::opaque_compiler_type_t type, + const char *name, + bool omit_empty_base_classes) { + if (type && name && name[0]) { + clang::QualType qual_type(GetCanonicalQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + + assert(record_decl); + uint32_t child_idx = 0; + + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + + if (cxx_record_decl) { + clang::CXXRecordDecl::base_class_const_iterator base_class, + base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class) { + // Skip empty base classes + clang::CXXRecordDecl *base_class_decl = + llvm::cast<clang::CXXRecordDecl>( + base_class->getType() + ->getAs<clang::RecordType>() + ->getDecl()); + if (omit_empty_base_classes && + !ClangASTContext::RecordHasFields(base_class_decl)) + continue; + + CompilerType base_class_clang_type( + this, base_class->getType().getAsOpaquePtr()); + std::string base_class_type_name( + base_class_clang_type.GetTypeName().AsCString("")); + if (base_class_type_name == name) + return child_idx; + ++child_idx; + } + } + + // Try and find a field that matches NAME + clang::RecordDecl::field_iterator field, field_end; + llvm::StringRef name_sref(name); + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(); + field != field_end; ++field, ++child_idx) { + if (field->getName().equals(name_sref)) + return child_idx; + } + } + break; + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: + if (GetCompleteType(type)) { + llvm::StringRef name_sref(name); + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + assert(objc_class_type); + if (objc_class_type) { + uint32_t child_idx = 0; + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl) { + clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, + ivar_end = class_interface_decl->ivar_end(); + clang::ObjCInterfaceDecl *superclass_interface_decl = + class_interface_decl->getSuperClass(); + + for (ivar_pos = class_interface_decl->ivar_begin(); + ivar_pos != ivar_end; ++ivar_pos, ++child_idx) { + const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; + + if (ivar_decl->getName().equals(name_sref)) { + if ((!omit_empty_base_classes && superclass_interface_decl) || + (omit_empty_base_classes && + ObjCDeclHasIVars(superclass_interface_decl, true))) + ++child_idx; + + return child_idx; + } + } + + if (superclass_interface_decl) { + if (superclass_interface_decl->getName().equals(name_sref)) + return 0; + } + } + } + } + break; + + case clang::Type::ObjCObjectPointer: { + CompilerType pointee_clang_type( + this, llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) + ->getPointeeType() + .getAsOpaquePtr()); + return pointee_clang_type.GetIndexOfChildWithName( + name, omit_empty_base_classes); + } break; + + case clang::Type::ConstantArray: { + // const clang::ConstantArrayType *array = + // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr()); + // const uint64_t element_count = + // array->getSize().getLimitedValue(); + // + // if (idx < element_count) + // { + // std::pair<uint64_t, unsigned> field_type_info = + // ast->getTypeInfo(array->getElementType()); + // + // char element_name[32]; + // ::snprintf (element_name, sizeof (element_name), + // "%s[%u]", parent_name ? parent_name : "", idx); + // + // child_name.assign(element_name); + // assert(field_type_info.first % 8 == 0); + // child_byte_size = field_type_info.first / 8; + // child_byte_offset = idx * child_byte_size; + // return array->getElementType().getAsOpaquePtr(); + // } + } break; + + // case clang::Type::MemberPointerType: + // { + // MemberPointerType *mem_ptr_type = + // llvm::cast<MemberPointerType>(qual_type.getTypePtr()); + // clang::QualType pointee_type = + // mem_ptr_type->getPointeeType(); + // + // if (ClangASTContext::IsAggregateType + // (pointee_type.getAsOpaquePtr())) + // { + // return GetIndexOfChildWithName (ast, + // mem_ptr_type->getPointeeType().getAsOpaquePtr(), + // name); + // } + // } + // break; + // + case clang::Type::LValueReference: + case clang::Type::RValueReference: { + const clang::ReferenceType *reference_type = + llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); + CompilerType pointee_type( + this, reference_type->getPointeeType().getAsOpaquePtr()); + + if (pointee_type.IsAggregateType()) { + return pointee_type.GetIndexOfChildWithName(name, + omit_empty_base_classes); + } + } break; + + case clang::Type::Pointer: { + const clang::PointerType *pointer_type = + llvm::cast<clang::PointerType>(qual_type.getTypePtr()); + CompilerType pointee_type( + this, pointer_type->getPointeeType().getAsOpaquePtr()); + + if (pointee_type.IsAggregateType()) { + return pointee_type.GetIndexOfChildWithName(name, + omit_empty_base_classes); + } else { + // if (parent_name) + // { + // child_name.assign(1, '*'); + // child_name += parent_name; + // } + // + // // We have a pointer to an simple type + // if (idx == 0) + // { + // std::pair<uint64_t, unsigned> clang_type_info + // = ast->getTypeInfo(pointee_type); + // assert(clang_type_info.first % 8 == 0); + // child_byte_size = clang_type_info.first / 8; + // child_byte_offset = 0; + // return pointee_type.getAsOpaquePtr(); + // } + } + } break; + + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetIndexOfChildWithName(name, omit_empty_base_classes); + + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetIndexOfChildWithName(name, omit_empty_base_classes); + + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetIndexOfChildWithName(name, omit_empty_base_classes); + + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetIndexOfChildWithName(name, omit_empty_base_classes); + + default: + break; + } + } + return UINT32_MAX; +} + +size_t +ClangASTContext::GetNumTemplateArguments(lldb::opaque_compiler_type_t type) { + if (!type) + return 0; + + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + const clang::ClassTemplateSpecializationDecl *template_decl = + llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>( + cxx_record_decl); + if (template_decl) + return template_decl->getTemplateArgs().size(); + } + } + break; + + case clang::Type::Typedef: + return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()) + .GetNumTemplateArguments(); + + case clang::Type::Auto: + return CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .GetNumTemplateArguments(); + + case clang::Type::Elaborated: + return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .GetNumTemplateArguments(); + + case clang::Type::Paren: + return CompilerType(this, llvm::cast<clang::ParenType>(qual_type) + ->desugar() + .getAsOpaquePtr()) + .GetNumTemplateArguments(); + + default: + break; + } + + return 0; +} + +const clang::ClassTemplateSpecializationDecl * +ClangASTContext::GetAsTemplateSpecialization( + lldb::opaque_compiler_type_t type) { + if (!type) + return nullptr; + + clang::QualType qual_type(GetCanonicalQualType(type)); + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: { + if (! GetCompleteType(type)) + return nullptr; + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (!cxx_record_decl) + return nullptr; + return llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>( + cxx_record_decl); + } + + case clang::Type::Typedef: + return GetAsTemplateSpecialization(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr()); + + case clang::Type::Auto: + return GetAsTemplateSpecialization(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()); + + case clang::Type::Elaborated: + return GetAsTemplateSpecialization( + llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()); + + case clang::Type::Paren: + return GetAsTemplateSpecialization( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()); + + default: + return nullptr; + } +} + +lldb::TemplateArgumentKind +ClangASTContext::GetTemplateArgumentKind(lldb::opaque_compiler_type_t type, + size_t arg_idx) { + const clang::ClassTemplateSpecializationDecl *template_decl = + GetAsTemplateSpecialization(type); + if (! template_decl || arg_idx >= template_decl->getTemplateArgs().size()) + return eTemplateArgumentKindNull; + + switch (template_decl->getTemplateArgs()[arg_idx].getKind()) { + case clang::TemplateArgument::Null: + return eTemplateArgumentKindNull; + + case clang::TemplateArgument::NullPtr: + return eTemplateArgumentKindNullPtr; + + case clang::TemplateArgument::Type: + return eTemplateArgumentKindType; + + case clang::TemplateArgument::Declaration: + return eTemplateArgumentKindDeclaration; + + case clang::TemplateArgument::Integral: + return eTemplateArgumentKindIntegral; + + case clang::TemplateArgument::Template: + return eTemplateArgumentKindTemplate; + + case clang::TemplateArgument::TemplateExpansion: + return eTemplateArgumentKindTemplateExpansion; + + case clang::TemplateArgument::Expression: + return eTemplateArgumentKindExpression; + + case clang::TemplateArgument::Pack: + return eTemplateArgumentKindPack; + } + llvm_unreachable("Unhandled clang::TemplateArgument::ArgKind"); +} + +CompilerType +ClangASTContext::GetTypeTemplateArgument(lldb::opaque_compiler_type_t type, + size_t idx) { + const clang::ClassTemplateSpecializationDecl *template_decl = + GetAsTemplateSpecialization(type); + if (!template_decl || idx >= template_decl->getTemplateArgs().size()) + return CompilerType(); + + const clang::TemplateArgument &template_arg = + template_decl->getTemplateArgs()[idx]; + if (template_arg.getKind() != clang::TemplateArgument::Type) + return CompilerType(); + + return CompilerType(this, template_arg.getAsType().getAsOpaquePtr()); +} + +Optional<CompilerType::IntegralTemplateArgument> +ClangASTContext::GetIntegralTemplateArgument(lldb::opaque_compiler_type_t type, + size_t idx) { + const clang::ClassTemplateSpecializationDecl *template_decl = + GetAsTemplateSpecialization(type); + if (! template_decl || idx >= template_decl->getTemplateArgs().size()) + return llvm::None; + + const clang::TemplateArgument &template_arg = + template_decl->getTemplateArgs()[idx]; + if (template_arg.getKind() != clang::TemplateArgument::Integral) + return llvm::None; + + return { + {template_arg.getAsIntegral(), + CompilerType(this, template_arg.getIntegralType().getAsOpaquePtr())}}; +} + +CompilerType ClangASTContext::GetTypeForFormatters(void *type) { + if (type) + return ClangUtil::RemoveFastQualifiers(CompilerType(this, type)); + return CompilerType(); +} + +clang::EnumDecl *ClangASTContext::GetAsEnumDecl(const CompilerType &type) { + const clang::EnumType *enutype = + llvm::dyn_cast<clang::EnumType>(ClangUtil::GetCanonicalQualType(type)); + if (enutype) + return enutype->getDecl(); + return nullptr; +} + +clang::RecordDecl *ClangASTContext::GetAsRecordDecl(const CompilerType &type) { + const clang::RecordType *record_type = + llvm::dyn_cast<clang::RecordType>(ClangUtil::GetCanonicalQualType(type)); + if (record_type) + return record_type->getDecl(); + return nullptr; +} + +clang::TagDecl *ClangASTContext::GetAsTagDecl(const CompilerType &type) { + return ClangUtil::GetAsTagDecl(type); +} + +clang::TypedefNameDecl * +ClangASTContext::GetAsTypedefDecl(const CompilerType &type) { + const clang::TypedefType *typedef_type = + llvm::dyn_cast<clang::TypedefType>(ClangUtil::GetQualType(type)); + if (typedef_type) + return typedef_type->getDecl(); + return nullptr; +} + +clang::CXXRecordDecl * +ClangASTContext::GetAsCXXRecordDecl(lldb::opaque_compiler_type_t type) { + return GetCanonicalQualType(type)->getAsCXXRecordDecl(); +} + +clang::ObjCInterfaceDecl * +ClangASTContext::GetAsObjCInterfaceDecl(const CompilerType &type) { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>( + ClangUtil::GetCanonicalQualType(type)); + if (objc_class_type) + return objc_class_type->getInterface(); + return nullptr; +} + +clang::FieldDecl *ClangASTContext::AddFieldToRecordType( + const CompilerType &type, llvm::StringRef name, + const CompilerType &field_clang_type, AccessType access, + uint32_t bitfield_bit_size) { + if (!type.IsValid() || !field_clang_type.IsValid()) + return nullptr; + ClangASTContext *ast = + llvm::dyn_cast_or_null<ClangASTContext>(type.GetTypeSystem()); + if (!ast) + return nullptr; + clang::ASTContext *clang_ast = ast->getASTContext(); + clang::IdentifierInfo *ident = nullptr; + if (!name.empty()) + ident = &clang_ast->Idents.get(name); + + clang::FieldDecl *field = nullptr; + + clang::Expr *bit_width = nullptr; + if (bitfield_bit_size != 0) { + llvm::APInt bitfield_bit_size_apint( + clang_ast->getTypeSize(clang_ast->IntTy), bitfield_bit_size); + bit_width = new (*clang_ast) + clang::IntegerLiteral(*clang_ast, bitfield_bit_size_apint, + clang_ast->IntTy, clang::SourceLocation()); + } + + clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); + if (record_decl) { + field = clang::FieldDecl::Create( + *clang_ast, record_decl, clang::SourceLocation(), + clang::SourceLocation(), + ident, // Identifier + ClangUtil::GetQualType(field_clang_type), // Field type + nullptr, // TInfo * + bit_width, // BitWidth + false, // Mutable + clang::ICIS_NoInit); // HasInit + + if (name.empty()) { + // Determine whether this field corresponds to an anonymous struct or + // union. + if (const clang::TagType *TagT = + field->getType()->getAs<clang::TagType>()) { + if (clang::RecordDecl *Rec = + llvm::dyn_cast<clang::RecordDecl>(TagT->getDecl())) + if (!Rec->getDeclName()) { + Rec->setAnonymousStructOrUnion(true); + field->setImplicit(); + } + } + } + + if (field) { + field->setAccess( + ClangASTContext::ConvertAccessTypeToAccessSpecifier(access)); + + record_decl->addDecl(field); + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(field); +#endif + } + } else { + clang::ObjCInterfaceDecl *class_interface_decl = + ast->GetAsObjCInterfaceDecl(type); + + if (class_interface_decl) { + const bool is_synthesized = false; + + field_clang_type.GetCompleteType(); + + field = clang::ObjCIvarDecl::Create( + *clang_ast, class_interface_decl, clang::SourceLocation(), + clang::SourceLocation(), + ident, // Identifier + ClangUtil::GetQualType(field_clang_type), // Field type + nullptr, // TypeSourceInfo * + ConvertAccessTypeToObjCIvarAccessControl(access), bit_width, + is_synthesized); + + if (field) { + class_interface_decl->addDecl(field); + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(field); +#endif + } + } + } + return field; +} + +void ClangASTContext::BuildIndirectFields(const CompilerType &type) { + if (!type) + return; + + ClangASTContext *ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (!ast) + return; + + clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); + + if (!record_decl) + return; + + typedef llvm::SmallVector<clang::IndirectFieldDecl *, 1> IndirectFieldVector; + + IndirectFieldVector indirect_fields; + clang::RecordDecl::field_iterator field_pos; + clang::RecordDecl::field_iterator field_end_pos = record_decl->field_end(); + clang::RecordDecl::field_iterator last_field_pos = field_end_pos; + for (field_pos = record_decl->field_begin(); field_pos != field_end_pos; + last_field_pos = field_pos++) { + if (field_pos->isAnonymousStructOrUnion()) { + clang::QualType field_qual_type = field_pos->getType(); + + const clang::RecordType *field_record_type = + field_qual_type->getAs<clang::RecordType>(); + + if (!field_record_type) + continue; + + clang::RecordDecl *field_record_decl = field_record_type->getDecl(); + + if (!field_record_decl) + continue; + + for (clang::RecordDecl::decl_iterator + di = field_record_decl->decls_begin(), + de = field_record_decl->decls_end(); + di != de; ++di) { + if (clang::FieldDecl *nested_field_decl = + llvm::dyn_cast<clang::FieldDecl>(*di)) { + clang::NamedDecl **chain = + new (*ast->getASTContext()) clang::NamedDecl *[2]; + chain[0] = *field_pos; + chain[1] = nested_field_decl; + clang::IndirectFieldDecl *indirect_field = + clang::IndirectFieldDecl::Create( + *ast->getASTContext(), record_decl, clang::SourceLocation(), + nested_field_decl->getIdentifier(), + nested_field_decl->getType(), {chain, 2}); + + indirect_field->setImplicit(); + + indirect_field->setAccess(ClangASTContext::UnifyAccessSpecifiers( + field_pos->getAccess(), nested_field_decl->getAccess())); + + indirect_fields.push_back(indirect_field); + } else if (clang::IndirectFieldDecl *nested_indirect_field_decl = + llvm::dyn_cast<clang::IndirectFieldDecl>(*di)) { + size_t nested_chain_size = + nested_indirect_field_decl->getChainingSize(); + clang::NamedDecl **chain = new (*ast->getASTContext()) + clang::NamedDecl *[nested_chain_size + 1]; + chain[0] = *field_pos; + + int chain_index = 1; + for (clang::IndirectFieldDecl::chain_iterator + nci = nested_indirect_field_decl->chain_begin(), + nce = nested_indirect_field_decl->chain_end(); + nci < nce; ++nci) { + chain[chain_index] = *nci; + chain_index++; + } + + clang::IndirectFieldDecl *indirect_field = + clang::IndirectFieldDecl::Create( + *ast->getASTContext(), record_decl, clang::SourceLocation(), + nested_indirect_field_decl->getIdentifier(), + nested_indirect_field_decl->getType(), + {chain, nested_chain_size + 1}); + + indirect_field->setImplicit(); + + indirect_field->setAccess(ClangASTContext::UnifyAccessSpecifiers( + field_pos->getAccess(), nested_indirect_field_decl->getAccess())); + + indirect_fields.push_back(indirect_field); + } + } + } + } + + // Check the last field to see if it has an incomplete array type as its last + // member and if it does, the tell the record decl about it + if (last_field_pos != field_end_pos) { + if (last_field_pos->getType()->isIncompleteArrayType()) + record_decl->hasFlexibleArrayMember(); + } + + for (IndirectFieldVector::iterator ifi = indirect_fields.begin(), + ife = indirect_fields.end(); + ifi < ife; ++ifi) { + record_decl->addDecl(*ifi); + } +} + +void ClangASTContext::SetIsPacked(const CompilerType &type) { + if (type) { + ClangASTContext *ast = + llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (ast) { + clang::RecordDecl *record_decl = GetAsRecordDecl(type); + + if (!record_decl) + return; + + record_decl->addAttr( + clang::PackedAttr::CreateImplicit(*ast->getASTContext())); + } + } +} + +clang::VarDecl *ClangASTContext::AddVariableToRecordType( + const CompilerType &type, llvm::StringRef name, + const CompilerType &var_type, AccessType access) { + if (!type.IsValid() || !var_type.IsValid()) + return nullptr; + + ClangASTContext *ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (!ast) + return nullptr; + + clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); + if (!record_decl) + return nullptr; + + clang::VarDecl *var_decl = nullptr; + clang::IdentifierInfo *ident = nullptr; + if (!name.empty()) + ident = &ast->getASTContext()->Idents.get(name); + + var_decl = clang::VarDecl::Create( + *ast->getASTContext(), // ASTContext & + record_decl, // DeclContext * + clang::SourceLocation(), // clang::SourceLocation StartLoc + clang::SourceLocation(), // clang::SourceLocation IdLoc + ident, // clang::IdentifierInfo * + ClangUtil::GetQualType(var_type), // Variable clang::QualType + nullptr, // TypeSourceInfo * + clang::SC_Static); // StorageClass + if (!var_decl) + return nullptr; + + var_decl->setAccess( + ClangASTContext::ConvertAccessTypeToAccessSpecifier(access)); + record_decl->addDecl(var_decl); + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(var_decl); +#endif + + return var_decl; +} + +clang::CXXMethodDecl *ClangASTContext::AddMethodToCXXRecordType( + lldb::opaque_compiler_type_t type, const char *name, const char *mangled_name, + const CompilerType &method_clang_type, lldb::AccessType access, + bool is_virtual, bool is_static, bool is_inline, bool is_explicit, + bool is_attr_used, bool is_artificial) { + if (!type || !method_clang_type.IsValid() || name == nullptr || + name[0] == '\0') + return nullptr; + + clang::QualType record_qual_type(GetCanonicalQualType(type)); + + clang::CXXRecordDecl *cxx_record_decl = + record_qual_type->getAsCXXRecordDecl(); + + if (cxx_record_decl == nullptr) + return nullptr; + + clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type)); + + clang::CXXMethodDecl *cxx_method_decl = nullptr; + + clang::DeclarationName decl_name(&getASTContext()->Idents.get(name)); + + const clang::FunctionType *function_type = + llvm::dyn_cast<clang::FunctionType>(method_qual_type.getTypePtr()); + + if (function_type == nullptr) + return nullptr; + + const clang::FunctionProtoType *method_function_prototype( + llvm::dyn_cast<clang::FunctionProtoType>(function_type)); + + if (!method_function_prototype) + return nullptr; + + unsigned int num_params = method_function_prototype->getNumParams(); + + clang::CXXDestructorDecl *cxx_dtor_decl(nullptr); + clang::CXXConstructorDecl *cxx_ctor_decl(nullptr); + + if (is_artificial) + return nullptr; // skip everything artificial + + const clang::ExplicitSpecifier explicit_spec( + nullptr /*expr*/, is_explicit + ? clang::ExplicitSpecKind::ResolvedTrue + : clang::ExplicitSpecKind::ResolvedFalse); + if (name[0] == '~') { + cxx_dtor_decl = clang::CXXDestructorDecl::Create( + *getASTContext(), cxx_record_decl, clang::SourceLocation(), + clang::DeclarationNameInfo( + getASTContext()->DeclarationNames.getCXXDestructorName( + getASTContext()->getCanonicalType(record_qual_type)), + clang::SourceLocation()), + method_qual_type, nullptr, is_inline, is_artificial, + ConstexprSpecKind::CSK_unspecified); + cxx_method_decl = cxx_dtor_decl; + } else if (decl_name == cxx_record_decl->getDeclName()) { + cxx_ctor_decl = clang::CXXConstructorDecl::Create( + *getASTContext(), cxx_record_decl, clang::SourceLocation(), + clang::DeclarationNameInfo( + getASTContext()->DeclarationNames.getCXXConstructorName( + getASTContext()->getCanonicalType(record_qual_type)), + clang::SourceLocation()), + method_qual_type, + nullptr, // TypeSourceInfo * + explicit_spec, is_inline, is_artificial, CSK_unspecified); + cxx_method_decl = cxx_ctor_decl; + } else { + clang::StorageClass SC = is_static ? clang::SC_Static : clang::SC_None; + clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS; + + if (IsOperator(name, op_kind)) { + if (op_kind != clang::NUM_OVERLOADED_OPERATORS) { + // Check the number of operator parameters. Sometimes we have seen bad + // DWARF that doesn't correctly describe operators and if we try to + // create a method and add it to the class, clang will assert and + // crash, so we need to make sure things are acceptable. + const bool is_method = true; + if (!ClangASTContext::CheckOverloadedOperatorKindParameterCount( + is_method, op_kind, num_params)) + return nullptr; + cxx_method_decl = clang::CXXMethodDecl::Create( + *getASTContext(), cxx_record_decl, clang::SourceLocation(), + clang::DeclarationNameInfo( + getASTContext()->DeclarationNames.getCXXOperatorName(op_kind), + clang::SourceLocation()), + method_qual_type, + nullptr, // TypeSourceInfo * + SC, is_inline, CSK_unspecified, clang::SourceLocation()); + } else if (num_params == 0) { + // Conversion operators don't take params... + cxx_method_decl = clang::CXXConversionDecl::Create( + *getASTContext(), cxx_record_decl, clang::SourceLocation(), + clang::DeclarationNameInfo( + getASTContext()->DeclarationNames.getCXXConversionFunctionName( + getASTContext()->getCanonicalType( + function_type->getReturnType())), + clang::SourceLocation()), + method_qual_type, + nullptr, // TypeSourceInfo * + is_inline, explicit_spec, CSK_unspecified, + clang::SourceLocation()); + } + } + + if (cxx_method_decl == nullptr) { + cxx_method_decl = clang::CXXMethodDecl::Create( + *getASTContext(), cxx_record_decl, clang::SourceLocation(), + clang::DeclarationNameInfo(decl_name, clang::SourceLocation()), + method_qual_type, + nullptr, // TypeSourceInfo * + SC, is_inline, CSK_unspecified, clang::SourceLocation()); + } + } + + clang::AccessSpecifier access_specifier = + ClangASTContext::ConvertAccessTypeToAccessSpecifier(access); + + cxx_method_decl->setAccess(access_specifier); + cxx_method_decl->setVirtualAsWritten(is_virtual); + + if (is_attr_used) + cxx_method_decl->addAttr(clang::UsedAttr::CreateImplicit(*getASTContext())); + + if (mangled_name != nullptr) { + cxx_method_decl->addAttr(clang::AsmLabelAttr::CreateImplicit( + *getASTContext(), mangled_name, /*literal=*/false)); + } + + // Populate the method decl with parameter decls + + llvm::SmallVector<clang::ParmVarDecl *, 12> params; + + for (unsigned param_index = 0; param_index < num_params; ++param_index) { + params.push_back(clang::ParmVarDecl::Create( + *getASTContext(), cxx_method_decl, clang::SourceLocation(), + clang::SourceLocation(), + nullptr, // anonymous + method_function_prototype->getParamType(param_index), nullptr, + clang::SC_None, nullptr)); + } + + cxx_method_decl->setParams(llvm::ArrayRef<clang::ParmVarDecl *>(params)); + + cxx_record_decl->addDecl(cxx_method_decl); + + // Sometimes the debug info will mention a constructor (default/copy/move), + // destructor, or assignment operator (copy/move) but there won't be any + // version of this in the code. So we check if the function was artificially + // generated and if it is trivial and this lets the compiler/backend know + // that it can inline the IR for these when it needs to and we can avoid a + // "missing function" error when running expressions. + + if (is_artificial) { + if (cxx_ctor_decl && ((cxx_ctor_decl->isDefaultConstructor() && + cxx_record_decl->hasTrivialDefaultConstructor()) || + (cxx_ctor_decl->isCopyConstructor() && + cxx_record_decl->hasTrivialCopyConstructor()) || + (cxx_ctor_decl->isMoveConstructor() && + cxx_record_decl->hasTrivialMoveConstructor()))) { + cxx_ctor_decl->setDefaulted(); + cxx_ctor_decl->setTrivial(true); + } else if (cxx_dtor_decl) { + if (cxx_record_decl->hasTrivialDestructor()) { + cxx_dtor_decl->setDefaulted(); + cxx_dtor_decl->setTrivial(true); + } + } else if ((cxx_method_decl->isCopyAssignmentOperator() && + cxx_record_decl->hasTrivialCopyAssignment()) || + (cxx_method_decl->isMoveAssignmentOperator() && + cxx_record_decl->hasTrivialMoveAssignment())) { + cxx_method_decl->setDefaulted(); + cxx_method_decl->setTrivial(true); + } + } + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(cxx_method_decl); +#endif + + return cxx_method_decl; +} + +void ClangASTContext::AddMethodOverridesForCXXRecordType( + lldb::opaque_compiler_type_t type) { + if (auto *record = GetAsCXXRecordDecl(type)) + for (auto *method : record->methods()) + addOverridesForMethod(method); +} + +#pragma mark C++ Base Classes + +std::unique_ptr<clang::CXXBaseSpecifier> +ClangASTContext::CreateBaseClassSpecifier(lldb::opaque_compiler_type_t type, + AccessType access, bool is_virtual, + bool base_of_class) { + if (!type) + return nullptr; + + return std::make_unique<clang::CXXBaseSpecifier>( + clang::SourceRange(), is_virtual, base_of_class, + ClangASTContext::ConvertAccessTypeToAccessSpecifier(access), + getASTContext()->getTrivialTypeSourceInfo(GetQualType(type)), + clang::SourceLocation()); +} + +bool ClangASTContext::TransferBaseClasses( + lldb::opaque_compiler_type_t type, + std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> bases) { + if (!type) + return false; + clang::CXXRecordDecl *cxx_record_decl = GetAsCXXRecordDecl(type); + if (!cxx_record_decl) + return false; + std::vector<clang::CXXBaseSpecifier *> raw_bases; + raw_bases.reserve(bases.size()); + + // Clang will make a copy of them, so it's ok that we pass pointers that we're + // about to destroy. + for (auto &b : bases) + raw_bases.push_back(b.get()); + cxx_record_decl->setBases(raw_bases.data(), raw_bases.size()); + return true; +} + +bool ClangASTContext::SetObjCSuperClass( + const CompilerType &type, const CompilerType &superclass_clang_type) { + ClangASTContext *ast = + llvm::dyn_cast_or_null<ClangASTContext>(type.GetTypeSystem()); + if (!ast) + return false; + clang::ASTContext *clang_ast = ast->getASTContext(); + + if (type && superclass_clang_type.IsValid() && + superclass_clang_type.GetTypeSystem() == type.GetTypeSystem()) { + clang::ObjCInterfaceDecl *class_interface_decl = + GetAsObjCInterfaceDecl(type); + clang::ObjCInterfaceDecl *super_interface_decl = + GetAsObjCInterfaceDecl(superclass_clang_type); + if (class_interface_decl && super_interface_decl) { + class_interface_decl->setSuperClass(clang_ast->getTrivialTypeSourceInfo( + clang_ast->getObjCInterfaceType(super_interface_decl))); + return true; + } + } + return false; +} + +bool ClangASTContext::AddObjCClassProperty( + const CompilerType &type, const char *property_name, + const CompilerType &property_clang_type, clang::ObjCIvarDecl *ivar_decl, + const char *property_setter_name, const char *property_getter_name, + uint32_t property_attributes, ClangASTMetadata *metadata) { + if (!type || !property_clang_type.IsValid() || property_name == nullptr || + property_name[0] == '\0') + return false; + ClangASTContext *ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (!ast) + return false; + clang::ASTContext *clang_ast = ast->getASTContext(); + + clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); + + if (class_interface_decl) { + CompilerType property_clang_type_to_access; + + if (property_clang_type.IsValid()) + property_clang_type_to_access = property_clang_type; + else if (ivar_decl) + property_clang_type_to_access = + CompilerType(ast, ivar_decl->getType().getAsOpaquePtr()); + + if (class_interface_decl && property_clang_type_to_access.IsValid()) { + clang::TypeSourceInfo *prop_type_source; + if (ivar_decl) + prop_type_source = + clang_ast->getTrivialTypeSourceInfo(ivar_decl->getType()); + else + prop_type_source = clang_ast->getTrivialTypeSourceInfo( + ClangUtil::GetQualType(property_clang_type)); + + clang::ObjCPropertyDecl *property_decl = clang::ObjCPropertyDecl::Create( + *clang_ast, class_interface_decl, + clang::SourceLocation(), // Source Location + &clang_ast->Idents.get(property_name), + clang::SourceLocation(), // Source Location for AT + clang::SourceLocation(), // Source location for ( + ivar_decl ? ivar_decl->getType() + : ClangUtil::GetQualType(property_clang_type), + prop_type_source); + + if (property_decl) { + if (metadata) + ClangASTContext::SetMetadata(clang_ast, property_decl, *metadata); + + class_interface_decl->addDecl(property_decl); + + clang::Selector setter_sel, getter_sel; + + if (property_setter_name != nullptr) { + std::string property_setter_no_colon( + property_setter_name, strlen(property_setter_name) - 1); + clang::IdentifierInfo *setter_ident = + &clang_ast->Idents.get(property_setter_no_colon); + setter_sel = clang_ast->Selectors.getSelector(1, &setter_ident); + } else if (!(property_attributes & DW_APPLE_PROPERTY_readonly)) { + std::string setter_sel_string("set"); + setter_sel_string.push_back(::toupper(property_name[0])); + setter_sel_string.append(&property_name[1]); + clang::IdentifierInfo *setter_ident = + &clang_ast->Idents.get(setter_sel_string); + setter_sel = clang_ast->Selectors.getSelector(1, &setter_ident); + } + property_decl->setSetterName(setter_sel); + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_setter); + + if (property_getter_name != nullptr) { + clang::IdentifierInfo *getter_ident = + &clang_ast->Idents.get(property_getter_name); + getter_sel = clang_ast->Selectors.getSelector(0, &getter_ident); + } else { + clang::IdentifierInfo *getter_ident = + &clang_ast->Idents.get(property_name); + getter_sel = clang_ast->Selectors.getSelector(0, &getter_ident); + } + property_decl->setGetterName(getter_sel); + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_getter); + + if (ivar_decl) + property_decl->setPropertyIvarDecl(ivar_decl); + + if (property_attributes & DW_APPLE_PROPERTY_readonly) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_readonly); + if (property_attributes & DW_APPLE_PROPERTY_readwrite) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_readwrite); + if (property_attributes & DW_APPLE_PROPERTY_assign) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_assign); + if (property_attributes & DW_APPLE_PROPERTY_retain) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_retain); + if (property_attributes & DW_APPLE_PROPERTY_copy) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_copy); + if (property_attributes & DW_APPLE_PROPERTY_nonatomic) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_nonatomic); + if (property_attributes & clang::ObjCPropertyDecl::OBJC_PR_nullability) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_nullability); + if (property_attributes & + clang::ObjCPropertyDecl::OBJC_PR_null_resettable) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_null_resettable); + if (property_attributes & clang::ObjCPropertyDecl::OBJC_PR_class) + property_decl->setPropertyAttributes( + clang::ObjCPropertyDecl::OBJC_PR_class); + + const bool isInstance = + (property_attributes & clang::ObjCPropertyDecl::OBJC_PR_class) == 0; + + if (!getter_sel.isNull() && + !(isInstance + ? class_interface_decl->lookupInstanceMethod(getter_sel) + : class_interface_decl->lookupClassMethod(getter_sel))) { + const bool isVariadic = false; + const bool isSynthesized = false; + const bool isImplicitlyDeclared = true; + const bool isDefined = false; + const clang::ObjCMethodDecl::ImplementationControl impControl = + clang::ObjCMethodDecl::None; + const bool HasRelatedResultType = false; + + clang::ObjCMethodDecl *getter = clang::ObjCMethodDecl::Create( + *clang_ast, clang::SourceLocation(), clang::SourceLocation(), + getter_sel, ClangUtil::GetQualType(property_clang_type_to_access), + nullptr, class_interface_decl, isInstance, isVariadic, + isSynthesized, isImplicitlyDeclared, isDefined, impControl, + HasRelatedResultType); + + if (getter && metadata) + ClangASTContext::SetMetadata(clang_ast, getter, *metadata); + + if (getter) { + getter->setMethodParams(*clang_ast, + llvm::ArrayRef<clang::ParmVarDecl *>(), + llvm::ArrayRef<clang::SourceLocation>()); + + class_interface_decl->addDecl(getter); + } + } + + if (!setter_sel.isNull() && + !(isInstance + ? class_interface_decl->lookupInstanceMethod(setter_sel) + : class_interface_decl->lookupClassMethod(setter_sel))) { + clang::QualType result_type = clang_ast->VoidTy; + const bool isVariadic = false; + const bool isSynthesized = false; + const bool isImplicitlyDeclared = true; + const bool isDefined = false; + const clang::ObjCMethodDecl::ImplementationControl impControl = + clang::ObjCMethodDecl::None; + const bool HasRelatedResultType = false; + + clang::ObjCMethodDecl *setter = clang::ObjCMethodDecl::Create( + *clang_ast, clang::SourceLocation(), clang::SourceLocation(), + setter_sel, result_type, nullptr, class_interface_decl, + isInstance, isVariadic, isSynthesized, isImplicitlyDeclared, + isDefined, impControl, HasRelatedResultType); + + if (setter && metadata) + ClangASTContext::SetMetadata(clang_ast, setter, *metadata); + + llvm::SmallVector<clang::ParmVarDecl *, 1> params; + + params.push_back(clang::ParmVarDecl::Create( + *clang_ast, setter, clang::SourceLocation(), + clang::SourceLocation(), + nullptr, // anonymous + ClangUtil::GetQualType(property_clang_type_to_access), nullptr, + clang::SC_Auto, nullptr)); + + if (setter) { + setter->setMethodParams( + *clang_ast, llvm::ArrayRef<clang::ParmVarDecl *>(params), + llvm::ArrayRef<clang::SourceLocation>()); + + class_interface_decl->addDecl(setter); + } + } + + return true; + } + } + } + return false; +} + +bool ClangASTContext::IsObjCClassTypeAndHasIVars(const CompilerType &type, + bool check_superclass) { + clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); + if (class_interface_decl) + return ObjCDeclHasIVars(class_interface_decl, check_superclass); + return false; +} + +clang::ObjCMethodDecl *ClangASTContext::AddMethodToObjCObjectType( + const CompilerType &type, + const char *name, // the full symbol name as seen in the symbol table + // (lldb::opaque_compiler_type_t type, "-[NString + // stringWithCString:]") + const CompilerType &method_clang_type, lldb::AccessType access, + bool is_artificial, bool is_variadic) { + if (!type || !method_clang_type.IsValid()) + return nullptr; + + clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); + + if (class_interface_decl == nullptr) + return nullptr; + ClangASTContext *lldb_ast = + llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (lldb_ast == nullptr) + return nullptr; + clang::ASTContext *ast = lldb_ast->getASTContext(); + + const char *selector_start = ::strchr(name, ' '); + if (selector_start == nullptr) + return nullptr; + + selector_start++; + llvm::SmallVector<clang::IdentifierInfo *, 12> selector_idents; + + size_t len = 0; + const char *start; + // printf ("name = '%s'\n", name); + + unsigned num_selectors_with_args = 0; + for (start = selector_start; start && *start != '\0' && *start != ']'; + start += len) { + len = ::strcspn(start, ":]"); + bool has_arg = (start[len] == ':'); + if (has_arg) + ++num_selectors_with_args; + selector_idents.push_back(&ast->Idents.get(llvm::StringRef(start, len))); + if (has_arg) + len += 1; + } + + if (selector_idents.size() == 0) + return nullptr; + + clang::Selector method_selector = ast->Selectors.getSelector( + num_selectors_with_args ? selector_idents.size() : 0, + selector_idents.data()); + + clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type)); + + // Populate the method decl with parameter decls + const clang::Type *method_type(method_qual_type.getTypePtr()); + + if (method_type == nullptr) + return nullptr; + + const clang::FunctionProtoType *method_function_prototype( + llvm::dyn_cast<clang::FunctionProtoType>(method_type)); + + if (!method_function_prototype) + return nullptr; + + bool is_synthesized = false; + bool is_defined = false; + clang::ObjCMethodDecl::ImplementationControl imp_control = + clang::ObjCMethodDecl::None; + + const unsigned num_args = method_function_prototype->getNumParams(); + + if (num_args != num_selectors_with_args) + return nullptr; // some debug information is corrupt. We are not going to + // deal with it. + + clang::ObjCMethodDecl *objc_method_decl = clang::ObjCMethodDecl::Create( + *ast, + clang::SourceLocation(), // beginLoc, + clang::SourceLocation(), // endLoc, + method_selector, method_function_prototype->getReturnType(), + nullptr, // TypeSourceInfo *ResultTInfo, + ClangASTContext::GetASTContext(ast)->GetDeclContextForType( + ClangUtil::GetQualType(type)), + name[0] == '-', is_variadic, is_synthesized, + true, // is_implicitly_declared; we force this to true because we don't + // have source locations + is_defined, imp_control, false /*has_related_result_type*/); + + if (objc_method_decl == nullptr) + return nullptr; + + if (num_args > 0) { + llvm::SmallVector<clang::ParmVarDecl *, 12> params; + + for (unsigned param_index = 0; param_index < num_args; ++param_index) { + params.push_back(clang::ParmVarDecl::Create( + *ast, objc_method_decl, clang::SourceLocation(), + clang::SourceLocation(), + nullptr, // anonymous + method_function_prototype->getParamType(param_index), nullptr, + clang::SC_Auto, nullptr)); + } + + objc_method_decl->setMethodParams( + *ast, llvm::ArrayRef<clang::ParmVarDecl *>(params), + llvm::ArrayRef<clang::SourceLocation>()); + } + + class_interface_decl->addDecl(objc_method_decl); + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(objc_method_decl); +#endif + + return objc_method_decl; +} + +bool ClangASTContext::SetHasExternalStorage(lldb::opaque_compiler_type_t type, + bool has_extern) { + if (!type) + return false; + + clang::QualType qual_type(GetCanonicalQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: { + clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) { + cxx_record_decl->setHasExternalLexicalStorage(has_extern); + cxx_record_decl->setHasExternalVisibleStorage(has_extern); + return true; + } + } break; + + case clang::Type::Enum: { + clang::EnumDecl *enum_decl = + llvm::cast<clang::EnumType>(qual_type)->getDecl(); + if (enum_decl) { + enum_decl->setHasExternalLexicalStorage(has_extern); + enum_decl->setHasExternalVisibleStorage(has_extern); + return true; + } + } break; + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + assert(objc_class_type); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + + if (class_interface_decl) { + class_interface_decl->setHasExternalLexicalStorage(has_extern); + class_interface_decl->setHasExternalVisibleStorage(has_extern); + return true; + } + } + } break; + + case clang::Type::Typedef: + return SetHasExternalStorage(llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType() + .getAsOpaquePtr(), + has_extern); + + case clang::Type::Auto: + return SetHasExternalStorage(llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr(), + has_extern); + + case clang::Type::Elaborated: + return SetHasExternalStorage(llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr(), + has_extern); + + case clang::Type::Paren: + return SetHasExternalStorage( + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(), + has_extern); + + default: + break; + } + return false; +} + +#pragma mark TagDecl + +bool ClangASTContext::StartTagDeclarationDefinition(const CompilerType &type) { + clang::QualType qual_type(ClangUtil::GetQualType(type)); + if (!qual_type.isNull()) { + const clang::TagType *tag_type = qual_type->getAs<clang::TagType>(); + if (tag_type) { + clang::TagDecl *tag_decl = tag_type->getDecl(); + if (tag_decl) { + tag_decl->startDefinition(); + return true; + } + } + + const clang::ObjCObjectType *object_type = + qual_type->getAs<clang::ObjCObjectType>(); + if (object_type) { + clang::ObjCInterfaceDecl *interface_decl = object_type->getInterface(); + if (interface_decl) { + interface_decl->startDefinition(); + return true; + } + } + } + return false; +} + +bool ClangASTContext::CompleteTagDeclarationDefinition( + const CompilerType &type) { + clang::QualType qual_type(ClangUtil::GetQualType(type)); + if (!qual_type.isNull()) { + // Make sure we use the same methodology as + // ClangASTContext::StartTagDeclarationDefinition() as to how we start/end + // the definition. Previously we were calling + const clang::TagType *tag_type = qual_type->getAs<clang::TagType>(); + if (tag_type) { + clang::TagDecl *tag_decl = tag_type->getDecl(); + if (tag_decl) { + clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast_or_null<clang::CXXRecordDecl>(tag_decl); + + if (cxx_record_decl) { + if (!cxx_record_decl->isCompleteDefinition()) + cxx_record_decl->completeDefinition(); + cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true); + cxx_record_decl->setHasExternalLexicalStorage(false); + cxx_record_decl->setHasExternalVisibleStorage(false); + return true; + } + } + } + + const clang::EnumType *enutype = qual_type->getAs<clang::EnumType>(); + + if (enutype) { + clang::EnumDecl *enum_decl = enutype->getDecl(); + + if (enum_decl) { + if (!enum_decl->isCompleteDefinition()) { + ClangASTContext *lldb_ast = + llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (lldb_ast == nullptr) + return false; + clang::ASTContext *ast = lldb_ast->getASTContext(); + + /// TODO This really needs to be fixed. + + QualType integer_type(enum_decl->getIntegerType()); + if (!integer_type.isNull()) { + unsigned NumPositiveBits = 1; + unsigned NumNegativeBits = 0; + + clang::QualType promotion_qual_type; + // If the enum integer type is less than an integer in bit width, + // then we must promote it to an integer size. + if (ast->getTypeSize(enum_decl->getIntegerType()) < + ast->getTypeSize(ast->IntTy)) { + if (enum_decl->getIntegerType()->isSignedIntegerType()) + promotion_qual_type = ast->IntTy; + else + promotion_qual_type = ast->UnsignedIntTy; + } else + promotion_qual_type = enum_decl->getIntegerType(); + + enum_decl->completeDefinition(enum_decl->getIntegerType(), + promotion_qual_type, NumPositiveBits, + NumNegativeBits); + } + } + return true; + } + } + } + return false; +} + +clang::EnumConstantDecl *ClangASTContext::AddEnumerationValueToEnumerationType( + const CompilerType &enum_type, const Declaration &decl, const char *name, + const llvm::APSInt &value) { + + if (!enum_type || ConstString(name).IsEmpty()) + return nullptr; + + lldbassert(enum_type.GetTypeSystem() == static_cast<TypeSystem *>(this)); + + lldb::opaque_compiler_type_t enum_opaque_compiler_type = + enum_type.GetOpaqueQualType(); + + if (!enum_opaque_compiler_type) + return nullptr; + + clang::QualType enum_qual_type( + GetCanonicalQualType(enum_opaque_compiler_type)); + + const clang::Type *clang_type = enum_qual_type.getTypePtr(); + + if (!clang_type) + return nullptr; + + const clang::EnumType *enutype = llvm::dyn_cast<clang::EnumType>(clang_type); + + if (!enutype) + return nullptr; + + clang::EnumConstantDecl *enumerator_decl = clang::EnumConstantDecl::Create( + *getASTContext(), enutype->getDecl(), clang::SourceLocation(), + name ? &getASTContext()->Idents.get(name) : nullptr, // Identifier + clang::QualType(enutype, 0), nullptr, value); + + if (!enumerator_decl) + return nullptr; + + enutype->getDecl()->addDecl(enumerator_decl); + +#ifdef LLDB_CONFIGURATION_DEBUG + VerifyDecl(enumerator_decl); +#endif + + return enumerator_decl; +} + +clang::EnumConstantDecl *ClangASTContext::AddEnumerationValueToEnumerationType( + const CompilerType &enum_type, const Declaration &decl, const char *name, + int64_t enum_value, uint32_t enum_value_bit_size) { + CompilerType underlying_type = + GetEnumerationIntegerType(enum_type.GetOpaqueQualType()); + bool is_signed = false; + underlying_type.IsIntegerType(is_signed); + + llvm::APSInt value(enum_value_bit_size, is_signed); + value = enum_value; + + return AddEnumerationValueToEnumerationType(enum_type, decl, name, value); +} + +CompilerType +ClangASTContext::GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) { + clang::QualType enum_qual_type(GetCanonicalQualType(type)); + const clang::Type *clang_type = enum_qual_type.getTypePtr(); + if (clang_type) { + const clang::EnumType *enutype = + llvm::dyn_cast<clang::EnumType>(clang_type); + if (enutype) { + clang::EnumDecl *enum_decl = enutype->getDecl(); + if (enum_decl) + return CompilerType(this, enum_decl->getIntegerType().getAsOpaquePtr()); + } + } + return CompilerType(); +} + +CompilerType +ClangASTContext::CreateMemberPointerType(const CompilerType &type, + const CompilerType &pointee_type) { + if (type && pointee_type.IsValid() && + type.GetTypeSystem() == pointee_type.GetTypeSystem()) { + ClangASTContext *ast = + llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); + if (!ast) + return CompilerType(); + return CompilerType(ast, ast->getASTContext() + ->getMemberPointerType( + ClangUtil::GetQualType(pointee_type), + ClangUtil::GetQualType(type).getTypePtr()) + .getAsOpaquePtr()); + } + return CompilerType(); +} + +// Dumping types +#define DEPTH_INCREMENT 2 + +#ifndef NDEBUG +LLVM_DUMP_METHOD void +ClangASTContext::dump(lldb::opaque_compiler_type_t type) const { + if (!type) + return; + clang::QualType qual_type(GetQualType(type)); + qual_type.dump(); +} +#endif + +void ClangASTContext::Dump(Stream &s) { + Decl *tu = Decl::castFromDeclContext(GetTranslationUnitDecl()); + tu->dump(s.AsRawOstream()); +} + +void ClangASTContext::DumpFromSymbolFile(Stream &s, + llvm::StringRef symbol_name) { + SymbolFile *symfile = GetSymbolFile(); + + if (!symfile) + return; + + lldb_private::TypeList type_list; + symfile->GetTypes(nullptr, eTypeClassAny, type_list); + size_t ntypes = type_list.GetSize(); + + for (size_t i = 0; i < ntypes; ++i) { + TypeSP type = type_list.GetTypeAtIndex(i); + + if (!symbol_name.empty()) + if (symbol_name.compare(type->GetName().GetStringRef()) != 0) + continue; + + s << type->GetName().AsCString() << "\n"; + + if (clang::TagDecl *tag_decl = + GetAsTagDecl(type->GetFullCompilerType())) + tag_decl->dump(s.AsRawOstream()); + else if (clang::TypedefNameDecl *typedef_decl = + GetAsTypedefDecl(type->GetFullCompilerType())) + typedef_decl->dump(s.AsRawOstream()); + else { + GetCanonicalQualType(type->GetFullCompilerType().GetOpaqueQualType()) + .dump(s.AsRawOstream()); + } + } +} + +void ClangASTContext::DumpValue( + lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, Stream *s, + lldb::Format format, const DataExtractor &data, + lldb::offset_t data_byte_offset, size_t data_byte_size, + uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset, bool show_types, + bool show_summary, bool verbose, uint32_t depth) { + if (!type) + return; + + clang::QualType qual_type(GetQualType(type)); + switch (qual_type->getTypeClass()) { + case clang::Type::Record: + if (GetCompleteType(type)) { + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + assert(record_decl); + uint32_t field_bit_offset = 0; + uint32_t field_byte_offset = 0; + const clang::ASTRecordLayout &record_layout = + getASTContext()->getASTRecordLayout(record_decl); + uint32_t child_idx = 0; + + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + if (cxx_record_decl) { + // We might have base classes to print out first + clang::CXXRecordDecl::base_class_const_iterator base_class, + base_class_end; + for (base_class = cxx_record_decl->bases_begin(), + base_class_end = cxx_record_decl->bases_end(); + base_class != base_class_end; ++base_class) { + const clang::CXXRecordDecl *base_class_decl = + llvm::cast<clang::CXXRecordDecl>( + base_class->getType()->getAs<clang::RecordType>()->getDecl()); + + // Skip empty base classes + if (!verbose && !ClangASTContext::RecordHasFields(base_class_decl)) + continue; + + if (base_class->isVirtual()) + field_bit_offset = + record_layout.getVBaseClassOffset(base_class_decl) + .getQuantity() * + 8; + else + field_bit_offset = record_layout.getBaseClassOffset(base_class_decl) + .getQuantity() * + 8; + field_byte_offset = field_bit_offset / 8; + assert(field_bit_offset % 8 == 0); + if (child_idx == 0) + s->PutChar('{'); + else + s->PutChar(','); + + clang::QualType base_class_qual_type = base_class->getType(); + std::string base_class_type_name(base_class_qual_type.getAsString()); + + // Indent and print the base class type name + s->Format("\n{0}{1}", llvm::fmt_repeat(" ", depth + DEPTH_INCREMENT), + base_class_type_name); + + clang::TypeInfo base_class_type_info = + getASTContext()->getTypeInfo(base_class_qual_type); + + // Dump the value of the member + CompilerType base_clang_type(this, + base_class_qual_type.getAsOpaquePtr()); + base_clang_type.DumpValue( + exe_ctx, + s, // Stream to dump to + base_clang_type + .GetFormat(), // The format with which to display the member + data, // Data buffer containing all bytes for this type + data_byte_offset + field_byte_offset, // Offset into "data" where + // to grab value from + base_class_type_info.Width / 8, // Size of this type in bytes + 0, // Bitfield bit size + 0, // Bitfield bit offset + show_types, // Boolean indicating if we should show the variable + // types + show_summary, // Boolean indicating if we should show a summary + // for the current type + verbose, // Verbose output? + depth + DEPTH_INCREMENT); // Scope depth for any types that have + // children + + ++child_idx; + } + } + uint32_t field_idx = 0; + clang::RecordDecl::field_iterator field, field_end; + for (field = record_decl->field_begin(), + field_end = record_decl->field_end(); + field != field_end; ++field, ++field_idx, ++child_idx) { + // Print the starting squiggly bracket (if this is the first member) or + // comma (for member 2 and beyond) for the struct/union/class member. + if (child_idx == 0) + s->PutChar('{'); + else + s->PutChar(','); + + // Indent + s->Printf("\n%*s", depth + DEPTH_INCREMENT, ""); + + clang::QualType field_type = field->getType(); + // Print the member type if requested + // Figure out the type byte size (field_type_info.first) and alignment + // (field_type_info.second) from the AST context. + clang::TypeInfo field_type_info = + getASTContext()->getTypeInfo(field_type); + assert(field_idx < record_layout.getFieldCount()); + // Figure out the field offset within the current struct/union/class + // type + field_bit_offset = record_layout.getFieldOffset(field_idx); + field_byte_offset = field_bit_offset / 8; + uint32_t field_bitfield_bit_size = 0; + uint32_t field_bitfield_bit_offset = 0; + if (ClangASTContext::FieldIsBitfield(getASTContext(), *field, + field_bitfield_bit_size)) + field_bitfield_bit_offset = field_bit_offset % 8; + + if (show_types) { + std::string field_type_name(field_type.getAsString()); + if (field_bitfield_bit_size > 0) + s->Printf("(%s:%u) ", field_type_name.c_str(), + field_bitfield_bit_size); + else + s->Printf("(%s) ", field_type_name.c_str()); + } + // Print the member name and equal sign + s->Printf("%s = ", field->getNameAsString().c_str()); + + // Dump the value of the member + CompilerType field_clang_type(this, field_type.getAsOpaquePtr()); + field_clang_type.DumpValue( + exe_ctx, + s, // Stream to dump to + field_clang_type + .GetFormat(), // The format with which to display the member + data, // Data buffer containing all bytes for this type + data_byte_offset + field_byte_offset, // Offset into "data" where to + // grab value from + field_type_info.Width / 8, // Size of this type in bytes + field_bitfield_bit_size, // Bitfield bit size + field_bitfield_bit_offset, // Bitfield bit offset + show_types, // Boolean indicating if we should show the variable + // types + show_summary, // Boolean indicating if we should show a summary for + // the current type + verbose, // Verbose output? + depth + DEPTH_INCREMENT); // Scope depth for any types that have + // children + } + + // Indent the trailing squiggly bracket + if (child_idx > 0) + s->Printf("\n%*s}", depth, ""); + } + return; + + case clang::Type::Enum: + if (GetCompleteType(type)) { + const clang::EnumType *enutype = + llvm::cast<clang::EnumType>(qual_type.getTypePtr()); + const clang::EnumDecl *enum_decl = enutype->getDecl(); + assert(enum_decl); + clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos; + lldb::offset_t offset = data_byte_offset; + const int64_t enum_value = data.GetMaxU64Bitfield( + &offset, data_byte_size, bitfield_bit_size, bitfield_bit_offset); + for (enum_pos = enum_decl->enumerator_begin(), + enum_end_pos = enum_decl->enumerator_end(); + enum_pos != enum_end_pos; ++enum_pos) { + if (enum_pos->getInitVal() == enum_value) { + s->Printf("%s", enum_pos->getNameAsString().c_str()); + return; + } + } + // If we have gotten here we didn't get find the enumerator in the enum + // decl, so just print the integer. + s->Printf("%" PRIi64, enum_value); + } + return; + + case clang::Type::ConstantArray: { + const clang::ConstantArrayType *array = + llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr()); + bool is_array_of_characters = false; + clang::QualType element_qual_type = array->getElementType(); + + const clang::Type *canonical_type = + element_qual_type->getCanonicalTypeInternal().getTypePtr(); + if (canonical_type) + is_array_of_characters = canonical_type->isCharType(); + + const uint64_t element_count = array->getSize().getLimitedValue(); + + clang::TypeInfo field_type_info = + getASTContext()->getTypeInfo(element_qual_type); + + uint32_t element_idx = 0; + uint32_t element_offset = 0; + uint64_t element_byte_size = field_type_info.Width / 8; + uint32_t element_stride = element_byte_size; + + if (is_array_of_characters) { + s->PutChar('"'); + DumpDataExtractor(data, s, data_byte_offset, lldb::eFormatChar, + element_byte_size, element_count, UINT32_MAX, + LLDB_INVALID_ADDRESS, 0, 0); + s->PutChar('"'); + return; + } else { + CompilerType element_clang_type(this, element_qual_type.getAsOpaquePtr()); + lldb::Format element_format = element_clang_type.GetFormat(); + + for (element_idx = 0; element_idx < element_count; ++element_idx) { + // Print the starting squiggly bracket (if this is the first member) or + // comman (for member 2 and beyong) for the struct/union/class member. + if (element_idx == 0) + s->PutChar('{'); + else + s->PutChar(','); + + // Indent and print the index + s->Printf("\n%*s[%u] ", depth + DEPTH_INCREMENT, "", element_idx); + + // Figure out the field offset within the current struct/union/class + // type + element_offset = element_idx * element_stride; + + // Dump the value of the member + element_clang_type.DumpValue( + exe_ctx, + s, // Stream to dump to + element_format, // The format with which to display the element + data, // Data buffer containing all bytes for this type + data_byte_offset + + element_offset, // Offset into "data" where to grab value from + element_byte_size, // Size of this type in bytes + 0, // Bitfield bit size + 0, // Bitfield bit offset + show_types, // Boolean indicating if we should show the variable + // types + show_summary, // Boolean indicating if we should show a summary for + // the current type + verbose, // Verbose output? + depth + DEPTH_INCREMENT); // Scope depth for any types that have + // children + } + + // Indent the trailing squiggly bracket + if (element_idx > 0) + s->Printf("\n%*s}", depth, ""); + } + } + return; + + case clang::Type::Typedef: { + clang::QualType typedef_qual_type = + llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType(); + + CompilerType typedef_clang_type(this, typedef_qual_type.getAsOpaquePtr()); + lldb::Format typedef_format = typedef_clang_type.GetFormat(); + clang::TypeInfo typedef_type_info = + getASTContext()->getTypeInfo(typedef_qual_type); + uint64_t typedef_byte_size = typedef_type_info.Width / 8; + + return typedef_clang_type.DumpValue( + exe_ctx, + s, // Stream to dump to + typedef_format, // The format with which to display the element + data, // Data buffer containing all bytes for this type + data_byte_offset, // Offset into "data" where to grab value from + typedef_byte_size, // Size of this type in bytes + bitfield_bit_size, // Bitfield bit size + bitfield_bit_offset, // Bitfield bit offset + show_types, // Boolean indicating if we should show the variable types + show_summary, // Boolean indicating if we should show a summary for the + // current type + verbose, // Verbose output? + depth); // Scope depth for any types that have children + } break; + + case clang::Type::Auto: { + clang::QualType elaborated_qual_type = + llvm::cast<clang::AutoType>(qual_type)->getDeducedType(); + CompilerType elaborated_clang_type(this, + elaborated_qual_type.getAsOpaquePtr()); + lldb::Format elaborated_format = elaborated_clang_type.GetFormat(); + clang::TypeInfo elaborated_type_info = + getASTContext()->getTypeInfo(elaborated_qual_type); + uint64_t elaborated_byte_size = elaborated_type_info.Width / 8; + + return elaborated_clang_type.DumpValue( + exe_ctx, + s, // Stream to dump to + elaborated_format, // The format with which to display the element + data, // Data buffer containing all bytes for this type + data_byte_offset, // Offset into "data" where to grab value from + elaborated_byte_size, // Size of this type in bytes + bitfield_bit_size, // Bitfield bit size + bitfield_bit_offset, // Bitfield bit offset + show_types, // Boolean indicating if we should show the variable types + show_summary, // Boolean indicating if we should show a summary for the + // current type + verbose, // Verbose output? + depth); // Scope depth for any types that have children + } break; + + case clang::Type::Elaborated: { + clang::QualType elaborated_qual_type = + llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(); + CompilerType elaborated_clang_type(this, + elaborated_qual_type.getAsOpaquePtr()); + lldb::Format elaborated_format = elaborated_clang_type.GetFormat(); + clang::TypeInfo elaborated_type_info = + getASTContext()->getTypeInfo(elaborated_qual_type); + uint64_t elaborated_byte_size = elaborated_type_info.Width / 8; + + return elaborated_clang_type.DumpValue( + exe_ctx, + s, // Stream to dump to + elaborated_format, // The format with which to display the element + data, // Data buffer containing all bytes for this type + data_byte_offset, // Offset into "data" where to grab value from + elaborated_byte_size, // Size of this type in bytes + bitfield_bit_size, // Bitfield bit size + bitfield_bit_offset, // Bitfield bit offset + show_types, // Boolean indicating if we should show the variable types + show_summary, // Boolean indicating if we should show a summary for the + // current type + verbose, // Verbose output? + depth); // Scope depth for any types that have children + } break; + + case clang::Type::Paren: { + clang::QualType desugar_qual_type = + llvm::cast<clang::ParenType>(qual_type)->desugar(); + CompilerType desugar_clang_type(this, desugar_qual_type.getAsOpaquePtr()); + + lldb::Format desugar_format = desugar_clang_type.GetFormat(); + clang::TypeInfo desugar_type_info = + getASTContext()->getTypeInfo(desugar_qual_type); + uint64_t desugar_byte_size = desugar_type_info.Width / 8; + + return desugar_clang_type.DumpValue( + exe_ctx, + s, // Stream to dump to + desugar_format, // The format with which to display the element + data, // Data buffer containing all bytes for this type + data_byte_offset, // Offset into "data" where to grab value from + desugar_byte_size, // Size of this type in bytes + bitfield_bit_size, // Bitfield bit size + bitfield_bit_offset, // Bitfield bit offset + show_types, // Boolean indicating if we should show the variable types + show_summary, // Boolean indicating if we should show a summary for the + // current type + verbose, // Verbose output? + depth); // Scope depth for any types that have children + } break; + + default: + // We are down to a scalar type that we just need to display. + DumpDataExtractor(data, s, data_byte_offset, format, data_byte_size, 1, + UINT32_MAX, LLDB_INVALID_ADDRESS, bitfield_bit_size, + bitfield_bit_offset); + + if (show_summary) + DumpSummary(type, exe_ctx, s, data, data_byte_offset, data_byte_size); + break; + } +} + +static bool DumpEnumValue(const clang::QualType &qual_type, Stream *s, + const DataExtractor &data, lldb::offset_t byte_offset, + size_t byte_size, uint32_t bitfield_bit_offset, + uint32_t bitfield_bit_size) { + const clang::EnumType *enutype = + llvm::cast<clang::EnumType>(qual_type.getTypePtr()); + const clang::EnumDecl *enum_decl = enutype->getDecl(); + assert(enum_decl); + lldb::offset_t offset = byte_offset; + const uint64_t enum_svalue = data.GetMaxS64Bitfield( + &offset, byte_size, bitfield_bit_size, bitfield_bit_offset); + bool can_be_bitfield = true; + uint64_t covered_bits = 0; + int num_enumerators = 0; + + // Try to find an exact match for the value. + // At the same time, we're applying a heuristic to determine whether we want + // to print this enum as a bitfield. We're likely dealing with a bitfield if + // every enumrator is either a one bit value or a superset of the previous + // enumerators. Also 0 doesn't make sense when the enumerators are used as + // flags. + for (auto enumerator : enum_decl->enumerators()) { + uint64_t val = enumerator->getInitVal().getSExtValue(); + val = llvm::SignExtend64(val, 8*byte_size); + if (llvm::countPopulation(val) != 1 && (val & ~covered_bits) != 0) + can_be_bitfield = false; + covered_bits |= val; + ++num_enumerators; + if (val == enum_svalue) { + // Found an exact match, that's all we need to do. + s->PutCString(enumerator->getNameAsString()); + return true; + } + } + + // Unsigned values make more sense for flags. + offset = byte_offset; + const uint64_t enum_uvalue = data.GetMaxU64Bitfield( + &offset, byte_size, bitfield_bit_size, bitfield_bit_offset); + + // No exact match, but we don't think this is a bitfield. Print the value as + // decimal. + if (!can_be_bitfield) { + if (qual_type->isSignedIntegerOrEnumerationType()) + s->Printf("%" PRIi64, enum_svalue); + else + s->Printf("%" PRIu64, enum_uvalue); + return true; + } + + uint64_t remaining_value = enum_uvalue; + std::vector<std::pair<uint64_t, llvm::StringRef>> values; + values.reserve(num_enumerators); + for (auto enumerator : enum_decl->enumerators()) + if (auto val = enumerator->getInitVal().getZExtValue()) + values.emplace_back(val, enumerator->getName()); + + // Sort in reverse order of the number of the population count, so that in + // `enum {A, B, ALL = A|B }` we visit ALL first. Use a stable sort so that + // A | C where A is declared before C is displayed in this order. + std::stable_sort(values.begin(), values.end(), [](const auto &a, const auto &b) { + return llvm::countPopulation(a.first) > llvm::countPopulation(b.first); + }); + + for (const auto &val : values) { + if ((remaining_value & val.first) != val.first) + continue; + remaining_value &= ~val.first; + s->PutCString(val.second); + if (remaining_value) + s->PutCString(" | "); + } + + // If there is a remainder that is not covered by the value, print it as hex. + if (remaining_value) + s->Printf("0x%" PRIx64, remaining_value); + + return true; +} + +bool ClangASTContext::DumpTypeValue( + lldb::opaque_compiler_type_t type, Stream *s, lldb::Format format, + const DataExtractor &data, lldb::offset_t byte_offset, size_t byte_size, + uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset, + ExecutionContextScope *exe_scope) { + if (!type) + return false; + if (IsAggregateType(type)) { + return false; + } else { + clang::QualType qual_type(GetQualType(type)); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + + if (type_class == clang::Type::Elaborated) { + qual_type = llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(); + return DumpTypeValue(qual_type.getAsOpaquePtr(), s, format, data, byte_offset, byte_size, + bitfield_bit_size, bitfield_bit_offset, exe_scope); + } + + switch (type_class) { + case clang::Type::Typedef: { + clang::QualType typedef_qual_type = + llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getUnderlyingType(); + CompilerType typedef_clang_type(this, typedef_qual_type.getAsOpaquePtr()); + if (format == eFormatDefault) + format = typedef_clang_type.GetFormat(); + clang::TypeInfo typedef_type_info = + getASTContext()->getTypeInfo(typedef_qual_type); + uint64_t typedef_byte_size = typedef_type_info.Width / 8; + + return typedef_clang_type.DumpTypeValue( + s, + format, // The format with which to display the element + data, // Data buffer containing all bytes for this type + byte_offset, // Offset into "data" where to grab value from + typedef_byte_size, // Size of this type in bytes + bitfield_bit_size, // Size in bits of a bitfield value, if zero don't + // treat as a bitfield + bitfield_bit_offset, // Offset in bits of a bitfield value if + // bitfield_bit_size != 0 + exe_scope); + } break; + + case clang::Type::Enum: + // If our format is enum or default, show the enumeration value as its + // enumeration string value, else just display it as requested. + if ((format == eFormatEnum || format == eFormatDefault) && + GetCompleteType(type)) + return DumpEnumValue(qual_type, s, data, byte_offset, byte_size, + bitfield_bit_offset, bitfield_bit_size); + // format was not enum, just fall through and dump the value as + // requested.... + LLVM_FALLTHROUGH; + + default: + // We are down to a scalar type that we just need to display. + { + uint32_t item_count = 1; + // A few formats, we might need to modify our size and count for + // depending + // on how we are trying to display the value... + switch (format) { + default: + case eFormatBoolean: + case eFormatBinary: + case eFormatComplex: + case eFormatCString: // NULL terminated C strings + case eFormatDecimal: + case eFormatEnum: + case eFormatHex: + case eFormatHexUppercase: + case eFormatFloat: + case eFormatOctal: + case eFormatOSType: + case eFormatUnsigned: + case eFormatPointer: + case eFormatVectorOfChar: + case eFormatVectorOfSInt8: + case eFormatVectorOfUInt8: + case eFormatVectorOfSInt16: + case eFormatVectorOfUInt16: + case eFormatVectorOfSInt32: + case eFormatVectorOfUInt32: + case eFormatVectorOfSInt64: + case eFormatVectorOfUInt64: + case eFormatVectorOfFloat32: + case eFormatVectorOfFloat64: + case eFormatVectorOfUInt128: + break; + + case eFormatChar: + case eFormatCharPrintable: + case eFormatCharArray: + case eFormatBytes: + case eFormatBytesWithASCII: + item_count = byte_size; + byte_size = 1; + break; + + case eFormatUnicode16: + item_count = byte_size / 2; + byte_size = 2; + break; + + case eFormatUnicode32: + item_count = byte_size / 4; + byte_size = 4; + break; + } + return DumpDataExtractor(data, s, byte_offset, format, byte_size, + item_count, UINT32_MAX, LLDB_INVALID_ADDRESS, + bitfield_bit_size, bitfield_bit_offset, + exe_scope); + } + break; + } + } + return false; +} + +void ClangASTContext::DumpSummary(lldb::opaque_compiler_type_t type, + ExecutionContext *exe_ctx, Stream *s, + const lldb_private::DataExtractor &data, + lldb::offset_t data_byte_offset, + size_t data_byte_size) { + uint32_t length = 0; + if (IsCStringType(type, length)) { + if (exe_ctx) { + Process *process = exe_ctx->GetProcessPtr(); + if (process) { + lldb::offset_t offset = data_byte_offset; + lldb::addr_t pointer_address = data.GetMaxU64(&offset, data_byte_size); + std::vector<uint8_t> buf; + if (length > 0) + buf.resize(length); + else + buf.resize(256); + + DataExtractor cstr_data(&buf.front(), buf.size(), + process->GetByteOrder(), 4); + buf.back() = '\0'; + size_t bytes_read; + size_t total_cstr_len = 0; + Status error; + while ((bytes_read = process->ReadMemory(pointer_address, &buf.front(), + buf.size(), error)) > 0) { + const size_t len = strlen((const char *)&buf.front()); + if (len == 0) + break; + if (total_cstr_len == 0) + s->PutCString(" \""); + DumpDataExtractor(cstr_data, s, 0, lldb::eFormatChar, 1, len, + UINT32_MAX, LLDB_INVALID_ADDRESS, 0, 0); + total_cstr_len += len; + if (len < buf.size()) + break; + pointer_address += total_cstr_len; + } + if (total_cstr_len > 0) + s->PutChar('"'); + } + } + } +} + +void ClangASTContext::DumpTypeDescription(lldb::opaque_compiler_type_t type) { + StreamFile s(stdout, false); + DumpTypeDescription(type, &s); + ClangASTMetadata *metadata = + ClangASTContext::GetMetadata(getASTContext(), type); + if (metadata) { + metadata->Dump(&s); + } +} + +void ClangASTContext::DumpTypeDescription(lldb::opaque_compiler_type_t type, + Stream *s) { + if (type) { + clang::QualType qual_type(GetQualType(type)); + + llvm::SmallVector<char, 1024> buf; + llvm::raw_svector_ostream llvm_ostrm(buf); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: { + GetCompleteType(type); + + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); + assert(objc_class_type); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + if (class_interface_decl) { + clang::PrintingPolicy policy = getASTContext()->getPrintingPolicy(); + class_interface_decl->print(llvm_ostrm, policy, s->GetIndentLevel()); + } + } + } break; + + case clang::Type::Typedef: { + const clang::TypedefType *typedef_type = + qual_type->getAs<clang::TypedefType>(); + if (typedef_type) { + const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); + std::string clang_typedef_name( + typedef_decl->getQualifiedNameAsString()); + if (!clang_typedef_name.empty()) { + s->PutCString("typedef "); + s->PutCString(clang_typedef_name); + } + } + } break; + + case clang::Type::Auto: + CompilerType(this, llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr()) + .DumpTypeDescription(s); + return; + + case clang::Type::Elaborated: + CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr()) + .DumpTypeDescription(s); + return; + + case clang::Type::Paren: + CompilerType( + this, + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()) + .DumpTypeDescription(s); + return; + + case clang::Type::Record: { + GetCompleteType(type); + + const clang::RecordType *record_type = + llvm::cast<clang::RecordType>(qual_type.getTypePtr()); + const clang::RecordDecl *record_decl = record_type->getDecl(); + const clang::CXXRecordDecl *cxx_record_decl = + llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); + + if (cxx_record_decl) + cxx_record_decl->print(llvm_ostrm, getASTContext()->getPrintingPolicy(), + s->GetIndentLevel()); + else + record_decl->print(llvm_ostrm, getASTContext()->getPrintingPolicy(), + s->GetIndentLevel()); + } break; + + default: { + const clang::TagType *tag_type = + llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()); + if (tag_type) { + clang::TagDecl *tag_decl = tag_type->getDecl(); + if (tag_decl) + tag_decl->print(llvm_ostrm, 0); + } else { + std::string clang_type_name(qual_type.getAsString()); + if (!clang_type_name.empty()) + s->PutCString(clang_type_name); + } + } + } + + if (buf.size() > 0) { + s->Write(buf.data(), buf.size()); + } + } +} + +void ClangASTContext::DumpTypeName(const CompilerType &type) { + if (ClangUtil::IsClangType(type)) { + clang::QualType qual_type( + ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type))); + + const clang::Type::TypeClass type_class = qual_type->getTypeClass(); + switch (type_class) { + case clang::Type::Record: { + const clang::CXXRecordDecl *cxx_record_decl = + qual_type->getAsCXXRecordDecl(); + if (cxx_record_decl) + printf("class %s", cxx_record_decl->getName().str().c_str()); + } break; + + case clang::Type::Enum: { + clang::EnumDecl *enum_decl = + llvm::cast<clang::EnumType>(qual_type)->getDecl(); + if (enum_decl) { + printf("enum %s", enum_decl->getName().str().c_str()); + } + } break; + + case clang::Type::ObjCObject: + case clang::Type::ObjCInterface: { + const clang::ObjCObjectType *objc_class_type = + llvm::dyn_cast<clang::ObjCObjectType>(qual_type); + if (objc_class_type) { + clang::ObjCInterfaceDecl *class_interface_decl = + objc_class_type->getInterface(); + // We currently can't complete objective C types through the newly + // added ASTContext because it only supports TagDecl objects right + // now... + if (class_interface_decl) + printf("@class %s", class_interface_decl->getName().str().c_str()); + } + } break; + + case clang::Type::Typedef: + printf("typedef %s", llvm::cast<clang::TypedefType>(qual_type) + ->getDecl() + ->getName() + .str() + .c_str()); + break; + + case clang::Type::Auto: + printf("auto "); + return DumpTypeName(CompilerType(type.GetTypeSystem(), + llvm::cast<clang::AutoType>(qual_type) + ->getDeducedType() + .getAsOpaquePtr())); + + case clang::Type::Elaborated: + printf("elaborated "); + return DumpTypeName(CompilerType( + type.GetTypeSystem(), llvm::cast<clang::ElaboratedType>(qual_type) + ->getNamedType() + .getAsOpaquePtr())); + + case clang::Type::Paren: + printf("paren "); + return DumpTypeName(CompilerType( + type.GetTypeSystem(), + llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())); + + default: + printf("ClangASTContext::DumpTypeName() type_class = %u", type_class); + break; + } + } +} + +clang::ClassTemplateDecl *ClangASTContext::ParseClassTemplateDecl( + clang::DeclContext *decl_ctx, lldb::AccessType access_type, + const char *parent_name, int tag_decl_kind, + const ClangASTContext::TemplateParameterInfos &template_param_infos) { + if (template_param_infos.IsValid()) { + std::string template_basename(parent_name); + template_basename.erase(template_basename.find('<')); + + return CreateClassTemplateDecl(decl_ctx, access_type, + template_basename.c_str(), tag_decl_kind, + template_param_infos); + } + return nullptr; +} + +void ClangASTContext::CompleteTagDecl(void *baton, clang::TagDecl *decl) { + ClangASTContext *ast = (ClangASTContext *)baton; + SymbolFile *sym_file = ast->GetSymbolFile(); + if (sym_file) { + CompilerType clang_type = GetTypeForDecl(decl); + if (clang_type) + sym_file->CompleteType(clang_type); + } +} + +void ClangASTContext::CompleteObjCInterfaceDecl( + void *baton, clang::ObjCInterfaceDecl *decl) { + ClangASTContext *ast = (ClangASTContext *)baton; + SymbolFile *sym_file = ast->GetSymbolFile(); + if (sym_file) { + CompilerType clang_type = GetTypeForDecl(decl); + if (clang_type) + sym_file->CompleteType(clang_type); + } +} + +DWARFASTParser *ClangASTContext::GetDWARFParser() { + if (!m_dwarf_ast_parser_up) + m_dwarf_ast_parser_up.reset(new DWARFASTParserClang(*this)); + return m_dwarf_ast_parser_up.get(); +} + +PDBASTParser *ClangASTContext::GetPDBParser() { + if (!m_pdb_ast_parser_up) + m_pdb_ast_parser_up.reset(new PDBASTParser(*this)); + return m_pdb_ast_parser_up.get(); +} + +bool ClangASTContext::LayoutRecordType( + void *baton, const clang::RecordDecl *record_decl, uint64_t &bit_size, + uint64_t &alignment, + llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets, + llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> + &base_offsets, + llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> + &vbase_offsets) { + ClangASTContext *ast = (ClangASTContext *)baton; + lldb_private::ClangASTImporter *importer = nullptr; + if (ast->m_dwarf_ast_parser_up) + importer = &ast->m_dwarf_ast_parser_up->GetClangASTImporter(); + if (!importer && ast->m_pdb_ast_parser_up) + importer = &ast->m_pdb_ast_parser_up->GetClangASTImporter(); + if (!importer) + return false; + + return importer->LayoutRecordType(record_decl, bit_size, alignment, + field_offsets, base_offsets, vbase_offsets); +} + +// CompilerDecl override functions + +ConstString ClangASTContext::DeclGetName(void *opaque_decl) { + if (opaque_decl) { + clang::NamedDecl *nd = + llvm::dyn_cast<NamedDecl>((clang::Decl *)opaque_decl); + if (nd != nullptr) + return ConstString(nd->getDeclName().getAsString()); + } + return ConstString(); +} + +ConstString ClangASTContext::DeclGetMangledName(void *opaque_decl) { + if (opaque_decl) { + clang::NamedDecl *nd = + llvm::dyn_cast<clang::NamedDecl>((clang::Decl *)opaque_decl); + if (nd != nullptr && !llvm::isa<clang::ObjCMethodDecl>(nd)) { + clang::MangleContext *mc = getMangleContext(); + if (mc && mc->shouldMangleCXXName(nd)) { + llvm::SmallVector<char, 1024> buf; + llvm::raw_svector_ostream llvm_ostrm(buf); + if (llvm::isa<clang::CXXConstructorDecl>(nd)) { + mc->mangleCXXCtor(llvm::dyn_cast<clang::CXXConstructorDecl>(nd), + Ctor_Complete, llvm_ostrm); + } else if (llvm::isa<clang::CXXDestructorDecl>(nd)) { + mc->mangleCXXDtor(llvm::dyn_cast<clang::CXXDestructorDecl>(nd), + Dtor_Complete, llvm_ostrm); + } else { + mc->mangleName(nd, llvm_ostrm); + } + if (buf.size() > 0) + return ConstString(buf.data(), buf.size()); + } + } + } + return ConstString(); +} + +CompilerDeclContext ClangASTContext::DeclGetDeclContext(void *opaque_decl) { + if (opaque_decl) + return CompilerDeclContext(this, + ((clang::Decl *)opaque_decl)->getDeclContext()); + else + return CompilerDeclContext(); +} + +CompilerType ClangASTContext::DeclGetFunctionReturnType(void *opaque_decl) { + if (clang::FunctionDecl *func_decl = + llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) + return CompilerType(this, func_decl->getReturnType().getAsOpaquePtr()); + if (clang::ObjCMethodDecl *objc_method = + llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl)) + return CompilerType(this, objc_method->getReturnType().getAsOpaquePtr()); + else + return CompilerType(); +} + +size_t ClangASTContext::DeclGetFunctionNumArguments(void *opaque_decl) { + if (clang::FunctionDecl *func_decl = + llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) + return func_decl->param_size(); + if (clang::ObjCMethodDecl *objc_method = + llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl)) + return objc_method->param_size(); + else + return 0; +} + +CompilerType ClangASTContext::DeclGetFunctionArgumentType(void *opaque_decl, + size_t idx) { + if (clang::FunctionDecl *func_decl = + llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) { + if (idx < func_decl->param_size()) { + ParmVarDecl *var_decl = func_decl->getParamDecl(idx); + if (var_decl) + return CompilerType(this, var_decl->getOriginalType().getAsOpaquePtr()); + } + } else if (clang::ObjCMethodDecl *objc_method = + llvm::dyn_cast<clang::ObjCMethodDecl>( + (clang::Decl *)opaque_decl)) { + if (idx < objc_method->param_size()) + return CompilerType( + this, + objc_method->parameters()[idx]->getOriginalType().getAsOpaquePtr()); + } + return CompilerType(); +} + +// CompilerDeclContext functions + +std::vector<CompilerDecl> ClangASTContext::DeclContextFindDeclByName( + void *opaque_decl_ctx, ConstString name, const bool ignore_using_decls) { + std::vector<CompilerDecl> found_decls; + if (opaque_decl_ctx) { + DeclContext *root_decl_ctx = (DeclContext *)opaque_decl_ctx; + std::set<DeclContext *> searched; + std::multimap<DeclContext *, DeclContext *> search_queue; + SymbolFile *symbol_file = GetSymbolFile(); + + for (clang::DeclContext *decl_context = root_decl_ctx; + decl_context != nullptr && found_decls.empty(); + decl_context = decl_context->getParent()) { + search_queue.insert(std::make_pair(decl_context, decl_context)); + + for (auto it = search_queue.find(decl_context); it != search_queue.end(); + it++) { + if (!searched.insert(it->second).second) + continue; + symbol_file->ParseDeclsForContext( + CompilerDeclContext(this, it->second)); + + for (clang::Decl *child : it->second->decls()) { + if (clang::UsingDirectiveDecl *ud = + llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) { + if (ignore_using_decls) + continue; + clang::DeclContext *from = ud->getCommonAncestor(); + if (searched.find(ud->getNominatedNamespace()) == searched.end()) + search_queue.insert( + std::make_pair(from, ud->getNominatedNamespace())); + } else if (clang::UsingDecl *ud = + llvm::dyn_cast<clang::UsingDecl>(child)) { + if (ignore_using_decls) + continue; + for (clang::UsingShadowDecl *usd : ud->shadows()) { + clang::Decl *target = usd->getTargetDecl(); + if (clang::NamedDecl *nd = + llvm::dyn_cast<clang::NamedDecl>(target)) { + IdentifierInfo *ii = nd->getIdentifier(); + if (ii != nullptr && + ii->getName().equals(name.AsCString(nullptr))) + found_decls.push_back(CompilerDecl(this, nd)); + } + } + } else if (clang::NamedDecl *nd = + llvm::dyn_cast<clang::NamedDecl>(child)) { + IdentifierInfo *ii = nd->getIdentifier(); + if (ii != nullptr && ii->getName().equals(name.AsCString(nullptr))) + found_decls.push_back(CompilerDecl(this, nd)); + } + } + } + } + } + return found_decls; +} + +// Look for child_decl_ctx's lookup scope in frame_decl_ctx and its parents, +// and return the number of levels it took to find it, or +// LLDB_INVALID_DECL_LEVEL if not found. If the decl was imported via a using +// declaration, its name and/or type, if set, will be used to check that the +// decl found in the scope is a match. +// +// The optional name is required by languages (like C++) to handle using +// declarations like: +// +// void poo(); +// namespace ns { +// void foo(); +// void goo(); +// } +// void bar() { +// using ns::foo; +// // CountDeclLevels returns 0 for 'foo', 1 for 'poo', and +// // LLDB_INVALID_DECL_LEVEL for 'goo'. +// } +// +// The optional type is useful in the case that there's a specific overload +// that we're looking for that might otherwise be shadowed, like: +// +// void foo(int); +// namespace ns { +// void foo(); +// } +// void bar() { +// using ns::foo; +// // CountDeclLevels returns 0 for { 'foo', void() }, +// // 1 for { 'foo', void(int) }, and +// // LLDB_INVALID_DECL_LEVEL for { 'foo', void(int, int) }. +// } +// +// NOTE: Because file statics are at the TranslationUnit along with globals, a +// function at file scope will return the same level as a function at global +// scope. Ideally we'd like to treat the file scope as an additional scope just +// below the global scope. More work needs to be done to recognise that, if +// the decl we're trying to look up is static, we should compare its source +// file with that of the current scope and return a lower number for it. +uint32_t ClangASTContext::CountDeclLevels(clang::DeclContext *frame_decl_ctx, + clang::DeclContext *child_decl_ctx, + ConstString *child_name, + CompilerType *child_type) { + if (frame_decl_ctx) { + std::set<DeclContext *> searched; + std::multimap<DeclContext *, DeclContext *> search_queue; + SymbolFile *symbol_file = GetSymbolFile(); + + // Get the lookup scope for the decl we're trying to find. + clang::DeclContext *parent_decl_ctx = child_decl_ctx->getParent(); + + // Look for it in our scope's decl context and its parents. + uint32_t level = 0; + for (clang::DeclContext *decl_ctx = frame_decl_ctx; decl_ctx != nullptr; + decl_ctx = decl_ctx->getParent()) { + if (!decl_ctx->isLookupContext()) + continue; + if (decl_ctx == parent_decl_ctx) + // Found it! + return level; + search_queue.insert(std::make_pair(decl_ctx, decl_ctx)); + for (auto it = search_queue.find(decl_ctx); it != search_queue.end(); + it++) { + if (searched.find(it->second) != searched.end()) + continue; + + // Currently DWARF has one shared translation unit for all Decls at top + // level, so this would erroneously find using statements anywhere. So + // don't look at the top-level translation unit. + // TODO fix this and add a testcase that depends on it. + + if (llvm::isa<clang::TranslationUnitDecl>(it->second)) + continue; + + searched.insert(it->second); + symbol_file->ParseDeclsForContext( + CompilerDeclContext(this, it->second)); + + for (clang::Decl *child : it->second->decls()) { + if (clang::UsingDirectiveDecl *ud = + llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) { + clang::DeclContext *ns = ud->getNominatedNamespace(); + if (ns == parent_decl_ctx) + // Found it! + return level; + clang::DeclContext *from = ud->getCommonAncestor(); + if (searched.find(ns) == searched.end()) + search_queue.insert(std::make_pair(from, ns)); + } else if (child_name) { + if (clang::UsingDecl *ud = + llvm::dyn_cast<clang::UsingDecl>(child)) { + for (clang::UsingShadowDecl *usd : ud->shadows()) { + clang::Decl *target = usd->getTargetDecl(); + clang::NamedDecl *nd = llvm::dyn_cast<clang::NamedDecl>(target); + if (!nd) + continue; + // Check names. + IdentifierInfo *ii = nd->getIdentifier(); + if (ii == nullptr || + !ii->getName().equals(child_name->AsCString(nullptr))) + continue; + // Check types, if one was provided. + if (child_type) { + CompilerType clang_type = ClangASTContext::GetTypeForDecl(nd); + if (!AreTypesSame(clang_type, *child_type, + /*ignore_qualifiers=*/true)) + continue; + } + // Found it! + return level; + } + } + } + } + } + ++level; + } + } + return LLDB_INVALID_DECL_LEVEL; +} + +bool ClangASTContext::DeclContextIsStructUnionOrClass(void *opaque_decl_ctx) { + if (opaque_decl_ctx) + return ((clang::DeclContext *)opaque_decl_ctx)->isRecord(); + else + return false; +} + +ConstString ClangASTContext::DeclContextGetName(void *opaque_decl_ctx) { + if (opaque_decl_ctx) { + clang::NamedDecl *named_decl = + llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx); + if (named_decl) + return ConstString(named_decl->getName()); + } + return ConstString(); +} + +ConstString +ClangASTContext::DeclContextGetScopeQualifiedName(void *opaque_decl_ctx) { + if (opaque_decl_ctx) { + clang::NamedDecl *named_decl = + llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx); + if (named_decl) + return ConstString( + llvm::StringRef(named_decl->getQualifiedNameAsString())); + } + return ConstString(); +} + +bool ClangASTContext::DeclContextIsClassMethod( + void *opaque_decl_ctx, lldb::LanguageType *language_ptr, + bool *is_instance_method_ptr, ConstString *language_object_name_ptr) { + if (opaque_decl_ctx) { + clang::DeclContext *decl_ctx = (clang::DeclContext *)opaque_decl_ctx; + if (ObjCMethodDecl *objc_method = + llvm::dyn_cast<clang::ObjCMethodDecl>(decl_ctx)) { + if (is_instance_method_ptr) + *is_instance_method_ptr = objc_method->isInstanceMethod(); + if (language_ptr) + *language_ptr = eLanguageTypeObjC; + if (language_object_name_ptr) + language_object_name_ptr->SetCString("self"); + return true; + } else if (CXXMethodDecl *cxx_method = + llvm::dyn_cast<clang::CXXMethodDecl>(decl_ctx)) { + if (is_instance_method_ptr) + *is_instance_method_ptr = cxx_method->isInstance(); + if (language_ptr) + *language_ptr = eLanguageTypeC_plus_plus; + if (language_object_name_ptr) + language_object_name_ptr->SetCString("this"); + return true; + } else if (clang::FunctionDecl *function_decl = + llvm::dyn_cast<clang::FunctionDecl>(decl_ctx)) { + ClangASTMetadata *metadata = + GetMetadata(&decl_ctx->getParentASTContext(), function_decl); + if (metadata && metadata->HasObjectPtr()) { + if (is_instance_method_ptr) + *is_instance_method_ptr = true; + if (language_ptr) + *language_ptr = eLanguageTypeObjC; + if (language_object_name_ptr) + language_object_name_ptr->SetCString(metadata->GetObjectPtrName()); + return true; + } + } + } + return false; +} + +bool ClangASTContext::DeclContextIsContainedInLookup( + void *opaque_decl_ctx, void *other_opaque_decl_ctx) { + auto *decl_ctx = (clang::DeclContext *)opaque_decl_ctx; + auto *other = (clang::DeclContext *)other_opaque_decl_ctx; + + do { + // A decl context always includes its own contents in its lookup. + if (decl_ctx == other) + return true; + + // If we have an inline namespace, then the lookup of the parent context + // also includes the inline namespace contents. + } while (other->isInlineNamespace() && (other = other->getParent())); + + return false; +} + +clang::DeclContext * +ClangASTContext::DeclContextGetAsDeclContext(const CompilerDeclContext &dc) { + if (dc.IsClang()) + return (clang::DeclContext *)dc.GetOpaqueDeclContext(); + return nullptr; +} + +ObjCMethodDecl * +ClangASTContext::DeclContextGetAsObjCMethodDecl(const CompilerDeclContext &dc) { + if (dc.IsClang()) + return llvm::dyn_cast<clang::ObjCMethodDecl>( + (clang::DeclContext *)dc.GetOpaqueDeclContext()); + return nullptr; +} + +CXXMethodDecl * +ClangASTContext::DeclContextGetAsCXXMethodDecl(const CompilerDeclContext &dc) { + if (dc.IsClang()) + return llvm::dyn_cast<clang::CXXMethodDecl>( + (clang::DeclContext *)dc.GetOpaqueDeclContext()); + return nullptr; +} + +clang::FunctionDecl * +ClangASTContext::DeclContextGetAsFunctionDecl(const CompilerDeclContext &dc) { + if (dc.IsClang()) + return llvm::dyn_cast<clang::FunctionDecl>( + (clang::DeclContext *)dc.GetOpaqueDeclContext()); + return nullptr; +} + +clang::NamespaceDecl * +ClangASTContext::DeclContextGetAsNamespaceDecl(const CompilerDeclContext &dc) { + if (dc.IsClang()) + return llvm::dyn_cast<clang::NamespaceDecl>( + (clang::DeclContext *)dc.GetOpaqueDeclContext()); + return nullptr; +} + +ClangASTMetadata * +ClangASTContext::DeclContextGetMetaData(const CompilerDeclContext &dc, + const void *object) { + clang::ASTContext *ast = DeclContextGetClangASTContext(dc); + if (ast) + return ClangASTContext::GetMetadata(ast, object); + return nullptr; +} + +clang::ASTContext * +ClangASTContext::DeclContextGetClangASTContext(const CompilerDeclContext &dc) { + ClangASTContext *ast = + llvm::dyn_cast_or_null<ClangASTContext>(dc.GetTypeSystem()); + if (ast) + return ast->getASTContext(); + return nullptr; +} + +ClangASTContextForExpressions::ClangASTContextForExpressions(Target &target, + ArchSpec arch) + : ClangASTContext(arch), m_target_wp(target.shared_from_this()), + m_persistent_variables(new ClangPersistentVariables) {} + +UserExpression *ClangASTContextForExpressions::GetUserExpression( + llvm::StringRef expr, llvm::StringRef prefix, lldb::LanguageType language, + Expression::ResultType desired_type, + const EvaluateExpressionOptions &options, + ValueObject *ctx_obj) { + TargetSP target_sp = m_target_wp.lock(); + if (!target_sp) + return nullptr; + + return new ClangUserExpression(*target_sp.get(), expr, prefix, language, + desired_type, options, ctx_obj); +} + +FunctionCaller *ClangASTContextForExpressions::GetFunctionCaller( + const CompilerType &return_type, const Address &function_address, + const ValueList &arg_value_list, const char *name) { + TargetSP target_sp = m_target_wp.lock(); + if (!target_sp) + return nullptr; + + Process *process = target_sp->GetProcessSP().get(); + if (!process) + return nullptr; + + return new ClangFunctionCaller(*process, return_type, function_address, + arg_value_list, name); +} + +UtilityFunction * +ClangASTContextForExpressions::GetUtilityFunction(const char *text, + const char *name) { + TargetSP target_sp = m_target_wp.lock(); + if (!target_sp) + return nullptr; + + return new ClangUtilityFunction(*target_sp.get(), text, name); +} + +PersistentExpressionState * +ClangASTContextForExpressions::GetPersistentExpressionState() { + return m_persistent_variables.get(); +} + +clang::ExternalASTMerger & +ClangASTContextForExpressions::GetMergerUnchecked() { + lldbassert(m_scratch_ast_source_up != nullptr); + return m_scratch_ast_source_up->GetMergerUnchecked(); +} |