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| //===-- DWARFASTParserClang.h -----------------------------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef SymbolFileDWARF_DWARFASTParserClang_h_
#define SymbolFileDWARF_DWARFASTParserClang_h_
#include "clang/AST/CharUnits.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "DWARFASTParser.h"
#include "DWARFDIE.h"
#include "DWARFDefines.h"
#include "DWARFFormValue.h"
#include "LogChannelDWARF.h"
#include "lldb/Core/ClangForward.h"
#include "lldb/Core/PluginInterface.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/ClangASTImporter.h"
#include <vector>
namespace lldb_private {
class CompileUnit;
}
class DWARFDebugInfoEntry;
class SymbolFileDWARF;
struct ParsedDWARFTypeAttributes;
class DWARFASTParserClang : public DWARFASTParser {
public:
DWARFASTParserClang(lldb_private::ClangASTContext &ast);
~DWARFASTParserClang() override;
// DWARFASTParser interface.
lldb::TypeSP ParseTypeFromDWARF(const lldb_private::SymbolContext &sc,
const DWARFDIE &die,
bool *type_is_new_ptr) override;
lldb_private::Function *
ParseFunctionFromDWARF(lldb_private::CompileUnit &comp_unit,
const DWARFDIE &die) override;
bool
CompleteTypeFromDWARF(const DWARFDIE &die, lldb_private::Type *type,
lldb_private::CompilerType &compiler_type) override;
lldb_private::CompilerDecl
GetDeclForUIDFromDWARF(const DWARFDIE &die) override;
void EnsureAllDIEsInDeclContextHaveBeenParsed(
lldb_private::CompilerDeclContext decl_context) override;
lldb_private::CompilerDeclContext
GetDeclContextForUIDFromDWARF(const DWARFDIE &die) override;
lldb_private::CompilerDeclContext
GetDeclContextContainingUIDFromDWARF(const DWARFDIE &die) override;
lldb_private::ClangASTImporter &GetClangASTImporter();
protected:
/// Protected typedefs and members.
/// @{
class DelayedAddObjCClassProperty;
typedef std::vector<DelayedAddObjCClassProperty> DelayedPropertyList;
typedef llvm::SmallPtrSet<const DWARFDebugInfoEntry *, 4> DIEPointerSet;
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, clang::DeclContext *>
DIEToDeclContextMap;
typedef std::multimap<const clang::DeclContext *, const DWARFDIE>
DeclContextToDIEMap;
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, clang::Decl *>
DIEToDeclMap;
typedef llvm::DenseMap<const clang::Decl *, DIEPointerSet> DeclToDIEMap;
lldb_private::ClangASTContext &m_ast;
DIEToDeclMap m_die_to_decl;
DeclToDIEMap m_decl_to_die;
DIEToDeclContextMap m_die_to_decl_ctx;
DeclContextToDIEMap m_decl_ctx_to_die;
std::unique_ptr<lldb_private::ClangASTImporter> m_clang_ast_importer_up;
/// @}
clang::DeclContext *GetDeclContextForBlock(const DWARFDIE &die);
clang::BlockDecl *ResolveBlockDIE(const DWARFDIE &die);
clang::NamespaceDecl *ResolveNamespaceDIE(const DWARFDIE &die);
bool ParseTemplateDIE(const DWARFDIE &die,
lldb_private::ClangASTContext::TemplateParameterInfos
&template_param_infos);
bool ParseTemplateParameterInfos(
const DWARFDIE &parent_die,
lldb_private::ClangASTContext::TemplateParameterInfos
&template_param_infos);
bool ParseChildMembers(
const DWARFDIE &die, lldb_private::CompilerType &class_compiler_type,
const lldb::LanguageType class_language,
std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> &base_classes,
std::vector<int> &member_accessibilities,
std::vector<DWARFDIE> &member_function_dies,
DelayedPropertyList &delayed_properties,
lldb::AccessType &default_accessibility, bool &is_a_class,
lldb_private::ClangASTImporter::LayoutInfo &layout_info);
size_t
ParseChildParameters(clang::DeclContext *containing_decl_ctx,
const DWARFDIE &parent_die, bool skip_artificial,
bool &is_static, bool &is_variadic,
bool &has_template_params,
std::vector<lldb_private::CompilerType> &function_args,
std::vector<clang::ParmVarDecl *> &function_param_decls,
unsigned &type_quals);
size_t ParseChildEnumerators(lldb_private::CompilerType &compiler_type,
bool is_signed, uint32_t enumerator_byte_size,
const DWARFDIE &parent_die);
/// Parse a structure, class, or union type DIE.
lldb::TypeSP ParseStructureLikeDIE(const DWARFDIE &die,
ParsedDWARFTypeAttributes &attrs);
lldb_private::Type *GetTypeForDIE(const DWARFDIE &die);
clang::Decl *GetClangDeclForDIE(const DWARFDIE &die);
clang::DeclContext *GetClangDeclContextForDIE(const DWARFDIE &die);
clang::DeclContext *GetClangDeclContextContainingDIE(const DWARFDIE &die,
DWARFDIE *decl_ctx_die);
bool CopyUniqueClassMethodTypes(const DWARFDIE &src_class_die,
const DWARFDIE &dst_class_die,
lldb_private::Type *class_type,
std::vector<DWARFDIE> &failures);
clang::DeclContext *GetCachedClangDeclContextForDIE(const DWARFDIE &die);
void LinkDeclContextToDIE(clang::DeclContext *decl_ctx, const DWARFDIE &die);
void LinkDeclToDIE(clang::Decl *decl, const DWARFDIE &die);
/// If \p type_sp is valid, calculate and set its symbol context scope, and
/// update the type list for its backing symbol file.
///
/// Returns \p type_sp.
lldb::TypeSP
UpdateSymbolContextScopeForType(const lldb_private::SymbolContext &sc,
const DWARFDIE &die, lldb::TypeSP type_sp);
lldb::TypeSP ParseTypeFromDWO(const DWARFDIE &die, lldb_private::Log *log);
// Return true if this type is a declaration to a type in an external
// module.
lldb::ModuleSP GetModuleForType(const DWARFDIE &die);
};
/// Parsed form of all attributes that are relevant for type reconstruction.
/// Some attributes are relevant for all kinds of types (declaration), while
/// others are only meaningful to a specific type (is_virtual)
struct ParsedDWARFTypeAttributes {
explicit ParsedDWARFTypeAttributes(const DWARFDIE &die);
lldb::AccessType accessibility = lldb::eAccessNone;
bool is_artificial = false;
bool is_complete_objc_class = false;
bool is_explicit = false;
bool is_forward_declaration = false;
bool is_inline = false;
bool is_scoped_enum = false;
bool is_vector = false;
bool is_virtual = false;
bool exports_symbols = false;
clang::StorageClass storage = clang::SC_None;
const char *mangled_name = nullptr;
lldb_private::ConstString name;
lldb_private::Declaration decl;
DWARFDIE object_pointer;
DWARFFormValue abstract_origin;
DWARFFormValue containing_type;
DWARFFormValue signature;
DWARFFormValue specification;
DWARFFormValue type;
lldb::LanguageType class_language = lldb::eLanguageTypeUnknown;
llvm::Optional<uint64_t> byte_size;
size_t calling_convention = llvm::dwarf::DW_CC_normal;
uint32_t bit_stride = 0;
uint32_t byte_stride = 0;
uint32_t encoding = 0;
};
#endif // SymbolFileDWARF_DWARFASTParserClang_h_
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