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llvm-project/lldb/source/Plugins/SymbolFile/PDB/PDBASTParser.cpp

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//===-- PDBASTParser.cpp --------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "PDBASTParser.h"
#include "SymbolFilePDB.h"
#include "clang/AST/CharUnits.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclCXX.h"
#include "Plugins/ExpressionParser/Clang/ClangASTMetadata.h"
#include "Plugins/ExpressionParser/Clang/ClangUtil.h"
#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
#include "lldb/Core/Module.h"
#include "lldb/Symbol/Declaration.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Symbol/TypeMap.h"
#include "lldb/Symbol/TypeSystem.h"
#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
#include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
#include "llvm/DebugInfo/PDB/PDBSymbol.h"
#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
#include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
#include "Plugins/Language/CPlusPlus/MSVCUndecoratedNameParser.h"
using namespace lldb;
using namespace lldb_private;
using namespace llvm::pdb;
static int TranslateUdtKind(PDB_UdtType pdb_kind) {
switch (pdb_kind) {
case PDB_UdtType::Class:
return clang::TTK_Class;
case PDB_UdtType::Struct:
return clang::TTK_Struct;
case PDB_UdtType::Union:
return clang::TTK_Union;
case PDB_UdtType::Interface:
return clang::TTK_Interface;
}
llvm_unreachable("unsuported PDB UDT type");
}
static lldb::Encoding TranslateBuiltinEncoding(PDB_BuiltinType type) {
switch (type) {
case PDB_BuiltinType::Float:
return lldb::eEncodingIEEE754;
case PDB_BuiltinType::Int:
case PDB_BuiltinType::Long:
case PDB_BuiltinType::Char:
return lldb::eEncodingSint;
case PDB_BuiltinType::Bool:
case PDB_BuiltinType::Char16:
case PDB_BuiltinType::Char32:
case PDB_BuiltinType::UInt:
case PDB_BuiltinType::ULong:
case PDB_BuiltinType::HResult:
case PDB_BuiltinType::WCharT:
return lldb::eEncodingUint;
default:
return lldb::eEncodingInvalid;
}
}
static lldb::Encoding TranslateEnumEncoding(PDB_VariantType type) {
switch (type) {
case PDB_VariantType::Int8:
case PDB_VariantType::Int16:
case PDB_VariantType::Int32:
case PDB_VariantType::Int64:
return lldb::eEncodingSint;
case PDB_VariantType::UInt8:
case PDB_VariantType::UInt16:
case PDB_VariantType::UInt32:
case PDB_VariantType::UInt64:
return lldb::eEncodingUint;
default:
break;
}
return lldb::eEncodingSint;
}
static CompilerType
GetBuiltinTypeForPDBEncodingAndBitSize(TypeSystemClang &clang_ast,
const PDBSymbolTypeBuiltin &pdb_type,
Encoding encoding, uint32_t width) {
clang::ASTContext &ast = clang_ast.getASTContext();
switch (pdb_type.getBuiltinType()) {
default:
break;
case PDB_BuiltinType::None:
return CompilerType();
case PDB_BuiltinType::Void:
return clang_ast.GetBasicType(eBasicTypeVoid);
case PDB_BuiltinType::Char:
return clang_ast.GetBasicType(eBasicTypeChar);
case PDB_BuiltinType::Bool:
return clang_ast.GetBasicType(eBasicTypeBool);
case PDB_BuiltinType::Long:
if (width == ast.getTypeSize(ast.LongTy))
return CompilerType(&clang_ast, ast.LongTy.getAsOpaquePtr());
if (width == ast.getTypeSize(ast.LongLongTy))
return CompilerType(&clang_ast, ast.LongLongTy.getAsOpaquePtr());
break;
case PDB_BuiltinType::ULong:
if (width == ast.getTypeSize(ast.UnsignedLongTy))
return CompilerType(&clang_ast, ast.UnsignedLongTy.getAsOpaquePtr());
if (width == ast.getTypeSize(ast.UnsignedLongLongTy))
return CompilerType(&clang_ast, ast.UnsignedLongLongTy.getAsOpaquePtr());
break;
case PDB_BuiltinType::WCharT:
if (width == ast.getTypeSize(ast.WCharTy))
return CompilerType(&clang_ast, ast.WCharTy.getAsOpaquePtr());
break;
case PDB_BuiltinType::Char16:
return CompilerType(&clang_ast, ast.Char16Ty.getAsOpaquePtr());
case PDB_BuiltinType::Char32:
return CompilerType(&clang_ast, ast.Char32Ty.getAsOpaquePtr());
case PDB_BuiltinType::Float:
// Note: types `long double` and `double` have same bit size in MSVC and
// there is no information in the PDB to distinguish them. So when falling
// back to default search, the compiler type of `long double` will be
// represented by the one generated for `double`.
break;
}
// If there is no match on PDB_BuiltinType, fall back to default search by
// encoding and width only
return clang_ast.GetBuiltinTypeForEncodingAndBitSize(encoding, width);
}
static ConstString GetPDBBuiltinTypeName(const PDBSymbolTypeBuiltin &pdb_type,
CompilerType &compiler_type) {
PDB_BuiltinType kind = pdb_type.getBuiltinType();
switch (kind) {
default:
break;
case PDB_BuiltinType::Currency:
return ConstString("CURRENCY");
case PDB_BuiltinType::Date:
return ConstString("DATE");
case PDB_BuiltinType::Variant:
return ConstString("VARIANT");
case PDB_BuiltinType::Complex:
return ConstString("complex");
case PDB_BuiltinType::Bitfield:
return ConstString("bitfield");
case PDB_BuiltinType::BSTR:
return ConstString("BSTR");
case PDB_BuiltinType::HResult:
return ConstString("HRESULT");
case PDB_BuiltinType::BCD:
return ConstString("BCD");
case PDB_BuiltinType::Char16:
return ConstString("char16_t");
case PDB_BuiltinType::Char32:
return ConstString("char32_t");
case PDB_BuiltinType::None:
return ConstString("...");
}
return compiler_type.GetTypeName();
}
static bool GetDeclarationForSymbol(const PDBSymbol &symbol,
Declaration &decl) {
auto &raw_sym = symbol.getRawSymbol();
auto first_line_up = raw_sym.getSrcLineOnTypeDefn();
if (!first_line_up) {
auto lines_up = symbol.getSession().findLineNumbersByAddress(
raw_sym.getVirtualAddress(), raw_sym.getLength());
if (!lines_up)
return false;
first_line_up = lines_up->getNext();
if (!first_line_up)
return false;
}
uint32_t src_file_id = first_line_up->getSourceFileId();
auto src_file_up = symbol.getSession().getSourceFileById(src_file_id);
if (!src_file_up)
return false;
FileSpec spec(src_file_up->getFileName());
decl.SetFile(spec);
decl.SetColumn(first_line_up->getColumnNumber());
decl.SetLine(first_line_up->getLineNumber());
return true;
}
static AccessType TranslateMemberAccess(PDB_MemberAccess access) {
switch (access) {
case PDB_MemberAccess::Private:
return eAccessPrivate;
case PDB_MemberAccess::Protected:
return eAccessProtected;
case PDB_MemberAccess::Public:
return eAccessPublic;
}
return eAccessNone;
}
static AccessType GetDefaultAccessibilityForUdtKind(PDB_UdtType udt_kind) {
switch (udt_kind) {
case PDB_UdtType::Struct:
case PDB_UdtType::Union:
return eAccessPublic;
case PDB_UdtType::Class:
case PDB_UdtType::Interface:
return eAccessPrivate;
}
llvm_unreachable("unsupported PDB UDT type");
}
static AccessType GetAccessibilityForUdt(const PDBSymbolTypeUDT &udt) {
AccessType access = TranslateMemberAccess(udt.getAccess());
if (access != lldb::eAccessNone || !udt.isNested())
return access;
auto parent = udt.getClassParent();
if (!parent)
return lldb::eAccessNone;
auto parent_udt = llvm::dyn_cast<PDBSymbolTypeUDT>(parent.get());
if (!parent_udt)
return lldb::eAccessNone;
return GetDefaultAccessibilityForUdtKind(parent_udt->getUdtKind());
}
static clang::MSInheritanceAttr::Spelling
GetMSInheritance(const PDBSymbolTypeUDT &udt) {
int base_count = 0;
bool has_virtual = false;
auto bases_enum = udt.findAllChildren<PDBSymbolTypeBaseClass>();
if (bases_enum) {
while (auto base = bases_enum->getNext()) {
base_count++;
has_virtual |= base->isVirtualBaseClass();
}
}
if (has_virtual)
return clang::MSInheritanceAttr::Keyword_virtual_inheritance;
if (base_count > 1)
return clang::MSInheritanceAttr::Keyword_multiple_inheritance;
return clang::MSInheritanceAttr::Keyword_single_inheritance;
}
static std::unique_ptr<llvm::pdb::PDBSymbol>
GetClassOrFunctionParent(const llvm::pdb::PDBSymbol &symbol) {
const IPDBSession &session = symbol.getSession();
const IPDBRawSymbol &raw = symbol.getRawSymbol();
auto tag = symbol.getSymTag();
// For items that are nested inside of a class, return the class that it is
// nested inside of.
// Note that only certain items can be nested inside of classes.
switch (tag) {
case PDB_SymType::Function:
case PDB_SymType::Data:
case PDB_SymType::UDT:
case PDB_SymType::Enum:
case PDB_SymType::FunctionSig:
case PDB_SymType::Typedef:
case PDB_SymType::BaseClass:
case PDB_SymType::VTable: {
auto class_parent_id = raw.getClassParentId();
if (auto class_parent = session.getSymbolById(class_parent_id))
return class_parent;
break;
}
default:
break;
}
// Otherwise, if it is nested inside of a function, return the function.
// Note that only certain items can be nested inside of functions.
switch (tag) {
case PDB_SymType::Block:
case PDB_SymType::Data: {
auto lexical_parent_id = raw.getLexicalParentId();
auto lexical_parent = session.getSymbolById(lexical_parent_id);
if (!lexical_parent)
return nullptr;
auto lexical_parent_tag = lexical_parent->getSymTag();
if (lexical_parent_tag == PDB_SymType::Function)
return lexical_parent;
if (lexical_parent_tag == PDB_SymType::Exe)
return nullptr;
return GetClassOrFunctionParent(*lexical_parent);
}
default:
return nullptr;
}
}
static clang::NamedDecl *
GetDeclFromContextByName(const clang::ASTContext &ast,
const clang::DeclContext &decl_context,
llvm::StringRef name) {
clang::IdentifierInfo &ident = ast.Idents.get(name);
clang::DeclarationName decl_name = ast.DeclarationNames.getIdentifier(&ident);
clang::DeclContext::lookup_result result = decl_context.lookup(decl_name);
if (result.empty())
return nullptr;
return result[0];
}
static bool IsAnonymousNamespaceName(llvm::StringRef name) {
return name == "`anonymous namespace'" || name == "`anonymous-namespace'";
}
static clang::CallingConv TranslateCallingConvention(PDB_CallingConv pdb_cc) {
switch (pdb_cc) {
case llvm::codeview::CallingConvention::NearC:
return clang::CC_C;
case llvm::codeview::CallingConvention::NearStdCall:
return clang::CC_X86StdCall;
case llvm::codeview::CallingConvention::NearFast:
return clang::CC_X86FastCall;
case llvm::codeview::CallingConvention::ThisCall:
return clang::CC_X86ThisCall;
case llvm::codeview::CallingConvention::NearVector:
return clang::CC_X86VectorCall;
case llvm::codeview::CallingConvention::NearPascal:
return clang::CC_X86Pascal;
default:
assert(false && "Unknown calling convention");
return clang::CC_C;
}
}
PDBASTParser::PDBASTParser(lldb_private::TypeSystemClang &ast) : m_ast(ast) {}
PDBASTParser::~PDBASTParser() {}
// DebugInfoASTParser interface
lldb::TypeSP PDBASTParser::CreateLLDBTypeFromPDBType(const PDBSymbol &type) {
Declaration decl;
switch (type.getSymTag()) {
case PDB_SymType::BaseClass: {
auto symbol_file = m_ast.GetSymbolFile();
if (!symbol_file)
return nullptr;
auto ty = symbol_file->ResolveTypeUID(type.getRawSymbol().getTypeId());
return ty ? ty->shared_from_this() : nullptr;
} break;
case PDB_SymType::UDT: {
auto udt = llvm::dyn_cast<PDBSymbolTypeUDT>(&type);
assert(udt);
// Note that, unnamed UDT being typedef-ed is generated as a UDT symbol
// other than a Typedef symbol in PDB. For example,
// typedef union { short Row; short Col; } Union;
// is generated as a named UDT in PDB:
// union Union { short Row; short Col; }
// Such symbols will be handled here.
// Some UDT with trival ctor has zero length. Just ignore.
if (udt->getLength() == 0)
return nullptr;
// Ignore unnamed-tag UDTs.
std::string name =
std::string(MSVCUndecoratedNameParser::DropScope(udt->getName()));
if (name.empty())
return nullptr;
auto decl_context = GetDeclContextContainingSymbol(type);
// Check if such an UDT already exists in the current context.
// This may occur with const or volatile types. There are separate type
// symbols in PDB for types with const or volatile modifiers, but we need
// to create only one declaration for them all.
Type::ResolveState type_resolve_state;
CompilerType clang_type = m_ast.GetTypeForIdentifier<clang::CXXRecordDecl>(
ConstString(name), decl_context);
if (!clang_type.IsValid()) {
auto access = GetAccessibilityForUdt(*udt);
auto tag_type_kind = TranslateUdtKind(udt->getUdtKind());
ClangASTMetadata metadata;
metadata.SetUserID(type.getSymIndexId());
metadata.SetIsDynamicCXXType(false);
clang_type = m_ast.CreateRecordType(
decl_context, OptionalClangModuleID(), access, name, tag_type_kind,
lldb::eLanguageTypeC_plus_plus, &metadata);
assert(clang_type.IsValid());
auto record_decl =
m_ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType());
assert(record_decl);
m_uid_to_decl[type.getSymIndexId()] = record_decl;
auto inheritance_attr = clang::MSInheritanceAttr::CreateImplicit(
m_ast.getASTContext(), GetMSInheritance(*udt));
record_decl->addAttr(inheritance_attr);
TypeSystemClang::StartTagDeclarationDefinition(clang_type);
auto children = udt->findAllChildren();
if (!children || children->getChildCount() == 0) {
// PDB does not have symbol of forwarder. We assume we get an udt w/o
// any fields. Just complete it at this point.
TypeSystemClang::CompleteTagDeclarationDefinition(clang_type);
TypeSystemClang::SetHasExternalStorage(clang_type.GetOpaqueQualType(),
false);
type_resolve_state = Type::ResolveState::Full;
} else {
// Add the type to the forward declarations. It will help us to avoid
// an endless recursion in CompleteTypeFromUdt function.
m_forward_decl_to_uid[record_decl] = type.getSymIndexId();
TypeSystemClang::SetHasExternalStorage(clang_type.GetOpaqueQualType(),
true);
type_resolve_state = Type::ResolveState::Forward;
}
} else
type_resolve_state = Type::ResolveState::Forward;
if (udt->isConstType())
clang_type = clang_type.AddConstModifier();
if (udt->isVolatileType())
clang_type = clang_type.AddVolatileModifier();
GetDeclarationForSymbol(type, decl);
return std::make_shared<lldb_private::Type>(
type.getSymIndexId(), m_ast.GetSymbolFile(), ConstString(name),
udt->getLength(), nullptr, LLDB_INVALID_UID,
lldb_private::Type::eEncodingIsUID, decl, clang_type,
type_resolve_state);
} break;
case PDB_SymType::Enum: {
auto enum_type = llvm::dyn_cast<PDBSymbolTypeEnum>(&type);
assert(enum_type);
std::string name =
std::string(MSVCUndecoratedNameParser::DropScope(enum_type->getName()));
auto decl_context = GetDeclContextContainingSymbol(type);
uint64_t bytes = enum_type->getLength();
// Check if such an enum already exists in the current context
CompilerType ast_enum = m_ast.GetTypeForIdentifier<clang::EnumDecl>(
ConstString(name), decl_context);
if (!ast_enum.IsValid()) {
auto underlying_type_up = enum_type->getUnderlyingType();
if (!underlying_type_up)
return nullptr;
lldb::Encoding encoding =
TranslateBuiltinEncoding(underlying_type_up->getBuiltinType());
// FIXME: Type of underlying builtin is always `Int`. We correct it with
// the very first enumerator's encoding if any.
auto first_child = enum_type->findOneChild<PDBSymbolData>();
if (first_child)
encoding = TranslateEnumEncoding(first_child->getValue().Type);
CompilerType builtin_type;
if (bytes > 0)
builtin_type = GetBuiltinTypeForPDBEncodingAndBitSize(
m_ast, *underlying_type_up, encoding, bytes * 8);
else
builtin_type = m_ast.GetBasicType(eBasicTypeInt);
// FIXME: PDB does not have information about scoped enumeration (Enum
// Class). Set it false for now.
bool isScoped = false;
ast_enum = m_ast.CreateEnumerationType(
name.c_str(), decl_context, OptionalClangModuleID(), decl, builtin_type, isScoped);
auto enum_decl = TypeSystemClang::GetAsEnumDecl(ast_enum);
assert(enum_decl);
m_uid_to_decl[type.getSymIndexId()] = enum_decl;
auto enum_values = enum_type->findAllChildren<PDBSymbolData>();
if (enum_values) {
while (auto enum_value = enum_values->getNext()) {
if (enum_value->getDataKind() != PDB_DataKind::Constant)
continue;
AddEnumValue(ast_enum, *enum_value);
}
}
if (TypeSystemClang::StartTagDeclarationDefinition(ast_enum))
TypeSystemClang::CompleteTagDeclarationDefinition(ast_enum);
}
if (enum_type->isConstType())
ast_enum = ast_enum.AddConstModifier();
if (enum_type->isVolatileType())
ast_enum = ast_enum.AddVolatileModifier();
GetDeclarationForSymbol(type, decl);
return std::make_shared<lldb_private::Type>(
type.getSymIndexId(), m_ast.GetSymbolFile(), ConstString(name), bytes,
nullptr, LLDB_INVALID_UID, lldb_private::Type::eEncodingIsUID, decl,
ast_enum, lldb_private::Type::ResolveState::Full);
} break;
case PDB_SymType::Typedef: {
auto type_def = llvm::dyn_cast<PDBSymbolTypeTypedef>(&type);
assert(type_def);
lldb_private::Type *target_type =
m_ast.GetSymbolFile()->ResolveTypeUID(type_def->getTypeId());
if (!target_type)
return nullptr;
std::string name =
std::string(MSVCUndecoratedNameParser::DropScope(type_def->getName()));
auto decl_ctx = GetDeclContextContainingSymbol(type);
// Check if such a typedef already exists in the current context
CompilerType ast_typedef =
m_ast.GetTypeForIdentifier<clang::TypedefNameDecl>(ConstString(name),
decl_ctx);
if (!ast_typedef.IsValid()) {
CompilerType target_ast_type = target_type->GetFullCompilerType();
ast_typedef = m_ast.CreateTypedefType(
target_ast_type, name.c_str(), m_ast.CreateDeclContext(decl_ctx), 0);
if (!ast_typedef)
return nullptr;
auto typedef_decl = TypeSystemClang::GetAsTypedefDecl(ast_typedef);
assert(typedef_decl);
m_uid_to_decl[type.getSymIndexId()] = typedef_decl;
}
if (type_def->isConstType())
ast_typedef = ast_typedef.AddConstModifier();
if (type_def->isVolatileType())
ast_typedef = ast_typedef.AddVolatileModifier();
GetDeclarationForSymbol(type, decl);
llvm::Optional<uint64_t> size;
if (type_def->getLength())
size = type_def->getLength();
return std::make_shared<lldb_private::Type>(
type_def->getSymIndexId(), m_ast.GetSymbolFile(), ConstString(name),
size, nullptr, target_type->GetID(),
lldb_private::Type::eEncodingIsTypedefUID, decl, ast_typedef,
lldb_private::Type::ResolveState::Full);
} break;
case PDB_SymType::Function:
case PDB_SymType::FunctionSig: {
std::string name;
PDBSymbolTypeFunctionSig *func_sig = nullptr;
if (auto pdb_func = llvm::dyn_cast<PDBSymbolFunc>(&type)) {
if (pdb_func->isCompilerGenerated())
return nullptr;
auto sig = pdb_func->getSignature();
if (!sig)
return nullptr;
func_sig = sig.release();
// Function type is named.
name = std::string(
MSVCUndecoratedNameParser::DropScope(pdb_func->getName()));
} else if (auto pdb_func_sig =
llvm::dyn_cast<PDBSymbolTypeFunctionSig>(&type)) {
func_sig = const_cast<PDBSymbolTypeFunctionSig *>(pdb_func_sig);
} else
llvm_unreachable("Unexpected PDB symbol!");
auto arg_enum = func_sig->getArguments();
uint32_t num_args = arg_enum->getChildCount();
std::vector<CompilerType> arg_list;
bool is_variadic = func_sig->isCVarArgs();
// Drop last variadic argument.
if (is_variadic)
--num_args;
for (uint32_t arg_idx = 0; arg_idx < num_args; arg_idx++) {
auto arg = arg_enum->getChildAtIndex(arg_idx);
if (!arg)
break;
lldb_private::Type *arg_type =
m_ast.GetSymbolFile()->ResolveTypeUID(arg->getSymIndexId());
// If there's some error looking up one of the dependent types of this
// function signature, bail.
if (!arg_type)
return nullptr;
CompilerType arg_ast_type = arg_type->GetFullCompilerType();
arg_list.push_back(arg_ast_type);
}
lldbassert(arg_list.size() <= num_args);
auto pdb_return_type = func_sig->getReturnType();
lldb_private::Type *return_type =
m_ast.GetSymbolFile()->ResolveTypeUID(pdb_return_type->getSymIndexId());
// If there's some error looking up one of the dependent types of this
// function signature, bail.
if (!return_type)
return nullptr;
CompilerType return_ast_type = return_type->GetFullCompilerType();
uint32_t type_quals = 0;
if (func_sig->isConstType())
type_quals |= clang::Qualifiers::Const;
if (func_sig->isVolatileType())
type_quals |= clang::Qualifiers::Volatile;
auto cc = TranslateCallingConvention(func_sig->getCallingConvention());
CompilerType func_sig_ast_type =
m_ast.CreateFunctionType(return_ast_type, arg_list.data(),
arg_list.size(), is_variadic, type_quals, cc);
GetDeclarationForSymbol(type, decl);
return std::make_shared<lldb_private::Type>(
type.getSymIndexId(), m_ast.GetSymbolFile(), ConstString(name),
llvm::None, nullptr, LLDB_INVALID_UID,
lldb_private::Type::eEncodingIsUID, decl, func_sig_ast_type,
lldb_private::Type::ResolveState::Full);
} break;
case PDB_SymType::ArrayType: {
auto array_type = llvm::dyn_cast<PDBSymbolTypeArray>(&type);
assert(array_type);
uint32_t num_elements = array_type->getCount();
uint32_t element_uid = array_type->getElementTypeId();
llvm::Optional<uint64_t> bytes;
if (uint64_t size = array_type->getLength())
bytes = size;
// If array rank > 0, PDB gives the element type at N=0. So element type
// will parsed in the order N=0, N=1,..., N=rank sequentially.
lldb_private::Type *element_type =
m_ast.GetSymbolFile()->ResolveTypeUID(element_uid);
if (!element_type)
return nullptr;
CompilerType element_ast_type = element_type->GetForwardCompilerType();
// If element type is UDT, it needs to be complete.
if (TypeSystemClang::IsCXXClassType(element_ast_type) &&
!element_ast_type.GetCompleteType()) {
if (TypeSystemClang::StartTagDeclarationDefinition(element_ast_type)) {
TypeSystemClang::CompleteTagDeclarationDefinition(element_ast_type);
} else {
// We are not able to start defintion.
return nullptr;
}
}
CompilerType array_ast_type = m_ast.CreateArrayType(
element_ast_type, num_elements, /*is_gnu_vector*/ false);
TypeSP type_sp = std::make_shared<lldb_private::Type>(
array_type->getSymIndexId(), m_ast.GetSymbolFile(), ConstString(),
bytes, nullptr, LLDB_INVALID_UID, lldb_private::Type::eEncodingIsUID,
decl, array_ast_type, lldb_private::Type::ResolveState::Full);
type_sp->SetEncodingType(element_type);
return type_sp;
} break;
case PDB_SymType::BuiltinType: {
auto *builtin_type = llvm::dyn_cast<PDBSymbolTypeBuiltin>(&type);
assert(builtin_type);
PDB_BuiltinType builtin_kind = builtin_type->getBuiltinType();
if (builtin_kind == PDB_BuiltinType::None)
return nullptr;
llvm::Optional<uint64_t> bytes;
if (uint64_t size = builtin_type->getLength())
bytes = size;
Encoding encoding = TranslateBuiltinEncoding(builtin_kind);
CompilerType builtin_ast_type = GetBuiltinTypeForPDBEncodingAndBitSize(
m_ast, *builtin_type, encoding, bytes.getValueOr(0) * 8);
if (builtin_type->isConstType())
builtin_ast_type = builtin_ast_type.AddConstModifier();
if (builtin_type->isVolatileType())
builtin_ast_type = builtin_ast_type.AddVolatileModifier();
auto type_name = GetPDBBuiltinTypeName(*builtin_type, builtin_ast_type);
return std::make_shared<lldb_private::Type>(
builtin_type->getSymIndexId(), m_ast.GetSymbolFile(), type_name, bytes,
nullptr, LLDB_INVALID_UID, lldb_private::Type::eEncodingIsUID, decl,
builtin_ast_type, lldb_private::Type::ResolveState::Full);
} break;
case PDB_SymType::PointerType: {
auto *pointer_type = llvm::dyn_cast<PDBSymbolTypePointer>(&type);
assert(pointer_type);
Type *pointee_type = m_ast.GetSymbolFile()->ResolveTypeUID(
pointer_type->getPointeeType()->getSymIndexId());
if (!pointee_type)
return nullptr;
if (pointer_type->isPointerToDataMember() ||
pointer_type->isPointerToMemberFunction()) {
auto class_parent_uid = pointer_type->getRawSymbol().getClassParentId();
auto class_parent_type =
m_ast.GetSymbolFile()->ResolveTypeUID(class_parent_uid);
assert(class_parent_type);
CompilerType pointer_ast_type;
pointer_ast_type = TypeSystemClang::CreateMemberPointerType(
class_parent_type->GetLayoutCompilerType(),
pointee_type->GetForwardCompilerType());
assert(pointer_ast_type);
return std::make_shared<lldb_private::Type>(
pointer_type->getSymIndexId(), m_ast.GetSymbolFile(), ConstString(),
pointer_type->getLength(), nullptr, LLDB_INVALID_UID,
lldb_private::Type::eEncodingIsUID, decl, pointer_ast_type,
lldb_private::Type::ResolveState::Forward);
}
CompilerType pointer_ast_type;
pointer_ast_type = pointee_type->GetFullCompilerType();
if (pointer_type->isReference())
pointer_ast_type = pointer_ast_type.GetLValueReferenceType();
else if (pointer_type->isRValueReference())
pointer_ast_type = pointer_ast_type.GetRValueReferenceType();
else
pointer_ast_type = pointer_ast_type.GetPointerType();
if (pointer_type->isConstType())
pointer_ast_type = pointer_ast_type.AddConstModifier();
if (pointer_type->isVolatileType())
pointer_ast_type = pointer_ast_type.AddVolatileModifier();
if (pointer_type->isRestrictedType())
pointer_ast_type = pointer_ast_type.AddRestrictModifier();
return std::make_shared<lldb_private::Type>(
pointer_type->getSymIndexId(), m_ast.GetSymbolFile(), ConstString(),
pointer_type->getLength(), nullptr, LLDB_INVALID_UID,
lldb_private::Type::eEncodingIsUID, decl, pointer_ast_type,
lldb_private::Type::ResolveState::Full);
} break;
default:
break;
}
return nullptr;
}
bool PDBASTParser::CompleteTypeFromPDB(
lldb_private::CompilerType &compiler_type) {
if (GetClangASTImporter().CanImport(compiler_type))
return GetClangASTImporter().CompleteType(compiler_type);
// Remove the type from the forward declarations to avoid
// an endless recursion for types like a linked list.
clang::CXXRecordDecl *record_decl =
m_ast.GetAsCXXRecordDecl(compiler_type.GetOpaqueQualType());
auto uid_it = m_forward_decl_to_uid.find(record_decl);
if (uid_it == m_forward_decl_to_uid.end())
return true;
auto symbol_file = static_cast<SymbolFilePDB *>(m_ast.GetSymbolFile());
if (!symbol_file)
return false;
std::unique_ptr<PDBSymbol> symbol =
symbol_file->GetPDBSession().getSymbolById(uid_it->getSecond());
if (!symbol)
return false;
m_forward_decl_to_uid.erase(uid_it);
TypeSystemClang::SetHasExternalStorage(compiler_type.GetOpaqueQualType(),
false);
switch (symbol->getSymTag()) {
case PDB_SymType::UDT: {
auto udt = llvm::dyn_cast<PDBSymbolTypeUDT>(symbol.get());
if (!udt)
return false;
return CompleteTypeFromUDT(*symbol_file, compiler_type, *udt);
}
default:
llvm_unreachable("not a forward clang type decl!");
}
}
clang::Decl *
PDBASTParser::GetDeclForSymbol(const llvm::pdb::PDBSymbol &symbol) {
uint32_t sym_id = symbol.getSymIndexId();
auto it = m_uid_to_decl.find(sym_id);
if (it != m_uid_to_decl.end())
return it->second;
auto symbol_file = static_cast<SymbolFilePDB *>(m_ast.GetSymbolFile());
if (!symbol_file)
return nullptr;
// First of all, check if the symbol is a member of a class. Resolve the full
// class type and return the declaration from the cache if so.
auto tag = symbol.getSymTag();
if (tag == PDB_SymType::Data || tag == PDB_SymType::Function) {
const IPDBSession &session = symbol.getSession();
const IPDBRawSymbol &raw = symbol.getRawSymbol();
auto class_parent_id = raw.getClassParentId();
if (std::unique_ptr<PDBSymbol> class_parent =
session.getSymbolById(class_parent_id)) {
auto class_parent_type = symbol_file->ResolveTypeUID(class_parent_id);
if (!class_parent_type)
return nullptr;
CompilerType class_parent_ct = class_parent_type->GetFullCompilerType();
// Look a declaration up in the cache after completing the class
clang::Decl *decl = m_uid_to_decl.lookup(sym_id);
if (decl)
return decl;
// A declaration was not found in the cache. It means that the symbol
// has the class parent, but the class doesn't have the symbol in its
// children list.
if (auto func = llvm::dyn_cast_or_null<PDBSymbolFunc>(&symbol)) {
// Try to find a class child method with the same RVA and use its
// declaration if found.
if (uint32_t rva = func->getRelativeVirtualAddress()) {
if (std::unique_ptr<ConcreteSymbolEnumerator<PDBSymbolFunc>>
methods_enum =
class_parent->findAllChildren<PDBSymbolFunc>()) {
while (std::unique_ptr<PDBSymbolFunc> method =
methods_enum->getNext()) {
if (method->getRelativeVirtualAddress() == rva) {
decl = m_uid_to_decl.lookup(method->getSymIndexId());
if (decl)
break;
}
}
}
}
// If no class methods with the same RVA were found, then create a new
// method. It is possible for template methods.
if (!decl)
decl = AddRecordMethod(*symbol_file, class_parent_ct, *func);
}
if (decl)
m_uid_to_decl[sym_id] = decl;
return decl;
}
}
// If we are here, then the symbol is not belonging to a class and is not
// contained in the cache. So create a declaration for it.
switch (symbol.getSymTag()) {
case PDB_SymType::Data: {
auto data = llvm::dyn_cast<PDBSymbolData>(&symbol);
assert(data);
auto decl_context = GetDeclContextContainingSymbol(symbol);
assert(decl_context);
// May be the current context is a class really, but we haven't found
// any class parent. This happens e.g. in the case of class static
// variables - they has two symbols, one is a child of the class when
// another is a child of the exe. So always complete the parent and use
// an existing declaration if possible.
if (auto parent_decl = llvm::dyn_cast_or_null<clang::TagDecl>(decl_context))
m_ast.GetCompleteDecl(parent_decl);
std::string name =
std::string(MSVCUndecoratedNameParser::DropScope(data->getName()));
// Check if the current context already contains the symbol with the name.
clang::Decl *decl =
GetDeclFromContextByName(m_ast.getASTContext(), *decl_context, name);
if (!decl) {
auto type = symbol_file->ResolveTypeUID(data->getTypeId());
if (!type)
return nullptr;
decl = m_ast.CreateVariableDeclaration(
decl_context, OptionalClangModuleID(), name.c_str(),
ClangUtil::GetQualType(type->GetLayoutCompilerType()));
}
m_uid_to_decl[sym_id] = decl;
return decl;
}
case PDB_SymType::Function: {
auto func = llvm::dyn_cast<PDBSymbolFunc>(&symbol);
assert(func);
auto decl_context = GetDeclContextContainingSymbol(symbol);
assert(decl_context);
std::string name =
std::string(MSVCUndecoratedNameParser::DropScope(func->getName()));
Type *type = symbol_file->ResolveTypeUID(sym_id);
if (!type)
return nullptr;
auto storage = func->isStatic() ? clang::StorageClass::SC_Static
: clang::StorageClass::SC_None;
auto decl = m_ast.CreateFunctionDeclaration(
decl_context, OptionalClangModuleID(), name.c_str(), type->GetForwardCompilerType(),
storage, func->hasInlineAttribute());
std::vector<clang::ParmVarDecl *> params;
if (std::unique_ptr<PDBSymbolTypeFunctionSig> sig = func->getSignature()) {
if (std::unique_ptr<ConcreteSymbolEnumerator<PDBSymbolTypeFunctionArg>>
arg_enum = sig->findAllChildren<PDBSymbolTypeFunctionArg>()) {
while (std::unique_ptr<PDBSymbolTypeFunctionArg> arg =
arg_enum->getNext()) {
Type *arg_type = symbol_file->ResolveTypeUID(arg->getTypeId());
if (!arg_type)
continue;
clang::ParmVarDecl *param = m_ast.CreateParameterDeclaration(
decl, OptionalClangModuleID(), nullptr, arg_type->GetForwardCompilerType(),
clang::SC_None, true);
if (param)
params.push_back(param);
}
}
}
if (params.size())
m_ast.SetFunctionParameters(decl, params.data(), params.size());
m_uid_to_decl[sym_id] = decl;
return decl;
}
default: {
// It's not a variable and not a function, check if it's a type
Type *type = symbol_file->ResolveTypeUID(sym_id);
if (!type)
return nullptr;
return m_uid_to_decl.lookup(sym_id);
}
}
}
clang::DeclContext *
PDBASTParser::GetDeclContextForSymbol(const llvm::pdb::PDBSymbol &symbol) {
if (symbol.getSymTag() == PDB_SymType::Function) {
clang::DeclContext *result =
llvm::dyn_cast_or_null<clang::FunctionDecl>(GetDeclForSymbol(symbol));
if (result)
m_decl_context_to_uid[result] = symbol.getSymIndexId();
return result;
}
auto symbol_file = static_cast<SymbolFilePDB *>(m_ast.GetSymbolFile());
if (!symbol_file)
return nullptr;
auto type = symbol_file->ResolveTypeUID(symbol.getSymIndexId());
if (!type)
return nullptr;
clang::DeclContext *result =
m_ast.GetDeclContextForType(type->GetForwardCompilerType());
if (result)
m_decl_context_to_uid[result] = symbol.getSymIndexId();
return result;
}
clang::DeclContext *PDBASTParser::GetDeclContextContainingSymbol(
const llvm::pdb::PDBSymbol &symbol) {
auto parent = GetClassOrFunctionParent(symbol);
while (parent) {
if (auto parent_context = GetDeclContextForSymbol(*parent))
return parent_context;
parent = GetClassOrFunctionParent(*parent);
}
// We can't find any class or function parent of the symbol. So analyze
// the full symbol name. The symbol may be belonging to a namespace
// or function (or even to a class if it's e.g. a static variable symbol).
// TODO: Make clang to emit full names for variables in namespaces
// (as MSVC does)
std::string name(symbol.getRawSymbol().getName());
MSVCUndecoratedNameParser parser(name);
llvm::ArrayRef<MSVCUndecoratedNameSpecifier> specs = parser.GetSpecifiers();
if (specs.empty())
return m_ast.GetTranslationUnitDecl();
auto symbol_file = static_cast<SymbolFilePDB *>(m_ast.GetSymbolFile());
if (!symbol_file)
return m_ast.GetTranslationUnitDecl();
auto global = symbol_file->GetPDBSession().getGlobalScope();
if (!global)
return m_ast.GetTranslationUnitDecl();
bool has_type_or_function_parent = false;
clang::DeclContext *curr_context = m_ast.GetTranslationUnitDecl();
for (std::size_t i = 0; i < specs.size() - 1; i++) {
// Check if there is a function or a type with the current context's name.
if (std::unique_ptr<IPDBEnumSymbols> children_enum = global->findChildren(
PDB_SymType::None, specs[i].GetFullName(), NS_CaseSensitive)) {
while (IPDBEnumChildren<PDBSymbol>::ChildTypePtr child =
children_enum->getNext()) {
if (clang::DeclContext *child_context =
GetDeclContextForSymbol(*child)) {
// Note that `GetDeclContextForSymbol' retrieves
// a declaration context for functions and types only,
// so if we are here then `child_context' is guaranteed
// a function or a type declaration context.
has_type_or_function_parent = true;
curr_context = child_context;
}
}
}
// If there were no functions or types above then retrieve a namespace with
// the current context's name. There can be no namespaces inside a function
// or a type. We check it to avoid fake namespaces such as `__l2':
// `N0::N1::CClass::PrivateFunc::__l2::InnerFuncStruct'
if (!has_type_or_function_parent) {
std::string namespace_name = std::string(specs[i].GetBaseName());
const char *namespace_name_c_str =
IsAnonymousNamespaceName(namespace_name) ? nullptr
: namespace_name.data();
clang::NamespaceDecl *namespace_decl =
m_ast.GetUniqueNamespaceDeclaration(namespace_name_c_str,
curr_context, OptionalClangModuleID());
m_parent_to_namespaces[curr_context].insert(namespace_decl);
m_namespaces.insert(namespace_decl);
curr_context = namespace_decl;
}
}
return curr_context;
}
void PDBASTParser::ParseDeclsForDeclContext(
const clang::DeclContext *decl_context) {
auto symbol_file = static_cast<SymbolFilePDB *>(m_ast.GetSymbolFile());
if (!symbol_file)
return;
IPDBSession &session = symbol_file->GetPDBSession();
auto symbol_up =
session.getSymbolById(m_decl_context_to_uid.lookup(decl_context));
auto global_up = session.getGlobalScope();
PDBSymbol *symbol;
if (symbol_up)
symbol = symbol_up.get();
else if (global_up)
symbol = global_up.get();
else
return;
if (auto children = symbol->findAllChildren())
while (auto child = children->getNext())
GetDeclForSymbol(*child);
}
clang::NamespaceDecl *
PDBASTParser::FindNamespaceDecl(const clang::DeclContext *parent,
llvm::StringRef name) {
NamespacesSet *set;
if (parent) {
auto pit = m_parent_to_namespaces.find(parent);
if (pit == m_parent_to_namespaces.end())
return nullptr;
set = &pit->second;
} else {
set = &m_namespaces;
}
assert(set);
for (clang::NamespaceDecl *namespace_decl : *set)
if (namespace_decl->getName().equals(name))
return namespace_decl;
for (clang::NamespaceDecl *namespace_decl : *set)
if (namespace_decl->isAnonymousNamespace())
return FindNamespaceDecl(namespace_decl, name);
return nullptr;
}
bool PDBASTParser::AddEnumValue(CompilerType enum_type,
const PDBSymbolData &enum_value) {
Declaration decl;
Variant v = enum_value.getValue();
std::string name =
std::string(MSVCUndecoratedNameParser::DropScope(enum_value.getName()));
int64_t raw_value;
switch (v.Type) {
case PDB_VariantType::Int8:
raw_value = v.Value.Int8;
break;
case PDB_VariantType::Int16:
raw_value = v.Value.Int16;
break;
case PDB_VariantType::Int32:
raw_value = v.Value.Int32;
break;
case PDB_VariantType::Int64:
raw_value = v.Value.Int64;
break;
case PDB_VariantType::UInt8:
raw_value = v.Value.UInt8;
break;
case PDB_VariantType::UInt16:
raw_value = v.Value.UInt16;
break;
case PDB_VariantType::UInt32:
raw_value = v.Value.UInt32;
break;
case PDB_VariantType::UInt64:
raw_value = v.Value.UInt64;
break;
default:
return false;
}
CompilerType underlying_type = m_ast.GetEnumerationIntegerType(enum_type);
uint32_t byte_size = m_ast.getASTContext().getTypeSize(
ClangUtil::GetQualType(underlying_type));
auto enum_constant_decl = m_ast.AddEnumerationValueToEnumerationType(
enum_type, decl, name.c_str(), raw_value, byte_size * 8);
if (!enum_constant_decl)
return false;
m_uid_to_decl[enum_value.getSymIndexId()] = enum_constant_decl;
return true;
}
bool PDBASTParser::CompleteTypeFromUDT(
lldb_private::SymbolFile &symbol_file,
lldb_private::CompilerType &compiler_type,
llvm::pdb::PDBSymbolTypeUDT &udt) {
ClangASTImporter::LayoutInfo layout_info;
layout_info.bit_size = udt.getLength() * 8;
auto nested_enums = udt.findAllChildren<PDBSymbolTypeUDT>();
if (nested_enums)
while (auto nested = nested_enums->getNext())
symbol_file.ResolveTypeUID(nested->getSymIndexId());
auto bases_enum = udt.findAllChildren<PDBSymbolTypeBaseClass>();
if (bases_enum)
AddRecordBases(symbol_file, compiler_type,
TranslateUdtKind(udt.getUdtKind()), *bases_enum,
layout_info);
auto members_enum = udt.findAllChildren<PDBSymbolData>();
if (members_enum)
AddRecordMembers(symbol_file, compiler_type, *members_enum, layout_info);
auto methods_enum = udt.findAllChildren<PDBSymbolFunc>();
if (methods_enum)
AddRecordMethods(symbol_file, compiler_type, *methods_enum);
m_ast.AddMethodOverridesForCXXRecordType(compiler_type.GetOpaqueQualType());
TypeSystemClang::BuildIndirectFields(compiler_type);
TypeSystemClang::CompleteTagDeclarationDefinition(compiler_type);
clang::CXXRecordDecl *record_decl =
m_ast.GetAsCXXRecordDecl(compiler_type.GetOpaqueQualType());
if (!record_decl)
return static_cast<bool>(compiler_type);
GetClangASTImporter().SetRecordLayout(record_decl, layout_info);
return static_cast<bool>(compiler_type);
}
void PDBASTParser::AddRecordMembers(
lldb_private::SymbolFile &symbol_file,
lldb_private::CompilerType &record_type,
PDBDataSymbolEnumerator &members_enum,
lldb_private::ClangASTImporter::LayoutInfo &layout_info) {
while (auto member = members_enum.getNext()) {
if (member->isCompilerGenerated())
continue;
auto member_name = member->getName();
auto member_type = symbol_file.ResolveTypeUID(member->getTypeId());
if (!member_type)
continue;
auto member_comp_type = member_type->GetLayoutCompilerType();
if (!member_comp_type.GetCompleteType()) {
symbol_file.GetObjectFile()->GetModule()->ReportError(
":: Class '%s' has a member '%s' of type '%s' "
"which does not have a complete definition.",
record_type.GetTypeName().GetCString(), member_name.c_str(),
member_comp_type.GetTypeName().GetCString());
if (TypeSystemClang::StartTagDeclarationDefinition(member_comp_type))
TypeSystemClang::CompleteTagDeclarationDefinition(member_comp_type);
}
auto access = TranslateMemberAccess(member->getAccess());
switch (member->getDataKind()) {
case PDB_DataKind::Member: {
auto location_type = member->getLocationType();
auto bit_size = member->getLength();
if (location_type == PDB_LocType::ThisRel)
bit_size *= 8;
auto decl = TypeSystemClang::AddFieldToRecordType(
record_type, member_name.c_str(), member_comp_type, access, bit_size);
if (!decl)
continue;
m_uid_to_decl[member->getSymIndexId()] = decl;
auto offset = member->getOffset() * 8;
if (location_type == PDB_LocType::BitField)
offset += member->getBitPosition();
layout_info.field_offsets.insert(std::make_pair(decl, offset));
break;
}
case PDB_DataKind::StaticMember: {
auto decl = TypeSystemClang::AddVariableToRecordType(
record_type, member_name.c_str(), member_comp_type, access);
if (!decl)
continue;
m_uid_to_decl[member->getSymIndexId()] = decl;
break;
}
default:
llvm_unreachable("unsupported PDB data kind");
}
}
}
void PDBASTParser::AddRecordBases(
lldb_private::SymbolFile &symbol_file,
lldb_private::CompilerType &record_type, int record_kind,
PDBBaseClassSymbolEnumerator &bases_enum,
lldb_private::ClangASTImporter::LayoutInfo &layout_info) const {
std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> base_classes;
while (auto base = bases_enum.getNext()) {
auto base_type = symbol_file.ResolveTypeUID(base->getTypeId());
if (!base_type)
continue;
auto base_comp_type = base_type->GetFullCompilerType();
if (!base_comp_type.GetCompleteType()) {
symbol_file.GetObjectFile()->GetModule()->ReportError(
":: Class '%s' has a base class '%s' "
"which does not have a complete definition.",
record_type.GetTypeName().GetCString(),
base_comp_type.GetTypeName().GetCString());
if (TypeSystemClang::StartTagDeclarationDefinition(base_comp_type))
TypeSystemClang::CompleteTagDeclarationDefinition(base_comp_type);
}
auto access = TranslateMemberAccess(base->getAccess());
auto is_virtual = base->isVirtualBaseClass();
std::unique_ptr<clang::CXXBaseSpecifier> base_spec =
m_ast.CreateBaseClassSpecifier(base_comp_type.GetOpaqueQualType(),
access, is_virtual,
record_kind == clang::TTK_Class);
lldbassert(base_spec);
base_classes.push_back(std::move(base_spec));
if (is_virtual)
continue;
auto decl = m_ast.GetAsCXXRecordDecl(base_comp_type.GetOpaqueQualType());
if (!decl)
continue;
auto offset = clang::CharUnits::fromQuantity(base->getOffset());
layout_info.base_offsets.insert(std::make_pair(decl, offset));
}
m_ast.TransferBaseClasses(record_type.GetOpaqueQualType(),
std::move(base_classes));
}
void PDBASTParser::AddRecordMethods(lldb_private::SymbolFile &symbol_file,
lldb_private::CompilerType &record_type,
PDBFuncSymbolEnumerator &methods_enum) {
while (std::unique_ptr<PDBSymbolFunc> method = methods_enum.getNext())
if (clang::CXXMethodDecl *decl =
AddRecordMethod(symbol_file, record_type, *method))
m_uid_to_decl[method->getSymIndexId()] = decl;
}
clang::CXXMethodDecl *
PDBASTParser::AddRecordMethod(lldb_private::SymbolFile &symbol_file,
lldb_private::CompilerType &record_type,
const llvm::pdb::PDBSymbolFunc &method) const {
std::string name =
std::string(MSVCUndecoratedNameParser::DropScope(method.getName()));
Type *method_type = symbol_file.ResolveTypeUID(method.getSymIndexId());
// MSVC specific __vecDelDtor.
if (!method_type)
return nullptr;
CompilerType method_comp_type = method_type->GetFullCompilerType();
if (!method_comp_type.GetCompleteType()) {
symbol_file.GetObjectFile()->GetModule()->ReportError(
":: Class '%s' has a method '%s' whose type cannot be completed.",
record_type.GetTypeName().GetCString(),
method_comp_type.GetTypeName().GetCString());
if (TypeSystemClang::StartTagDeclarationDefinition(method_comp_type))
TypeSystemClang::CompleteTagDeclarationDefinition(method_comp_type);
}
AccessType access = TranslateMemberAccess(method.getAccess());
if (access == eAccessNone)
access = eAccessPublic;
// TODO: get mangled name for the method.
return m_ast.AddMethodToCXXRecordType(
record_type.GetOpaqueQualType(), name.c_str(),
/*mangled_name*/ nullptr, method_comp_type, access, method.isVirtual(),
method.isStatic(), method.hasInlineAttribute(),
/*is_explicit*/ false, // FIXME: Need this field in CodeView.
/*is_attr_used*/ false,
/*is_artificial*/ method.isCompilerGenerated());
}
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