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//===-- PdbAstBuilder.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 LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_PDBASTBUILDER_H
#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_PDBASTBUILDER_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Threading.h"
#include "Plugins/ExpressionParser/Clang/ClangASTImporter.h"
#include "PdbIndex.h"
#include "PdbSymUid.h"
#include <optional>
namespace clang {
class TagDecl;
class DeclContext;
class Decl;
class QualType;
class FunctionDecl;
class NamespaceDecl;
} // namespace clang
namespace llvm {
namespace codeview {
class ProcSym;
}
} // namespace llvm
namespace lldb_private {
class ClangASTImporter;
class ObjectFile;
namespace npdb {
class PdbIndex;
struct VariableInfo;
struct DeclStatus {
DeclStatus() = default;
DeclStatus(lldb::user_id_t uid, bool resolved)
: uid(uid), resolved(resolved) {}
lldb::user_id_t uid = 0;
bool resolved = false;
};
class PdbAstBuilder {
public:
// Constructors and Destructors
PdbAstBuilder(TypeSystemClang &clang);
lldb_private::CompilerDeclContext GetTranslationUnitDecl();
std::optional<lldb_private::CompilerDecl>
GetOrCreateDeclForUid(PdbSymUid uid);
clang::DeclContext *GetOrCreateDeclContextForUid(PdbSymUid uid);
clang::DeclContext *GetParentDeclContext(PdbSymUid uid);
clang::FunctionDecl *GetOrCreateFunctionDecl(PdbCompilandSymId func_id);
clang::FunctionDecl *
GetOrCreateInlinedFunctionDecl(PdbCompilandSymId inlinesite_id);
clang::BlockDecl *GetOrCreateBlockDecl(PdbCompilandSymId block_id);
clang::VarDecl *GetOrCreateVariableDecl(PdbCompilandSymId scope_id,
PdbCompilandSymId var_id);
clang::VarDecl *GetOrCreateVariableDecl(PdbGlobalSymId var_id);
clang::TypedefNameDecl *GetOrCreateTypedefDecl(PdbGlobalSymId id);
void ParseDeclsForContext(clang::DeclContext &context);
clang::QualType GetBasicType(lldb::BasicType type);
clang::QualType GetOrCreateType(PdbTypeSymId type);
bool CompleteTagDecl(clang::TagDecl &tag);
bool CompleteType(clang::QualType qt);
CompilerDecl ToCompilerDecl(clang::Decl &decl);
CompilerType ToCompilerType(clang::QualType qt);
CompilerDeclContext ToCompilerDeclContext(clang::DeclContext &context);
clang::Decl *FromCompilerDecl(CompilerDecl decl);
clang::DeclContext *FromCompilerDeclContext(CompilerDeclContext context);
TypeSystemClang &clang() { return m_clang; }
ClangASTImporter &GetClangASTImporter() { return m_importer; }
void Dump(Stream &stream);
private:
clang::Decl *TryGetDecl(PdbSymUid uid) const;
using TypeIndex = llvm::codeview::TypeIndex;
clang::QualType
CreatePointerType(const llvm::codeview::PointerRecord &pointer);
clang::QualType
CreateModifierType(const llvm::codeview::ModifierRecord &modifier);
clang::QualType CreateArrayType(const llvm::codeview::ArrayRecord &array);
clang::QualType CreateRecordType(PdbTypeSymId id,
const llvm::codeview::TagRecord &record);
clang::QualType CreateEnumType(PdbTypeSymId id,
const llvm::codeview::EnumRecord &record);
clang::QualType
CreateFunctionType(TypeIndex args_type_idx, TypeIndex return_type_idx,
llvm::codeview::CallingConvention calling_convention);
clang::QualType CreateType(PdbTypeSymId type);
void CreateFunctionParameters(PdbCompilandSymId func_id,
clang::FunctionDecl &function_decl,
uint32_t param_count);
clang::Decl *GetOrCreateSymbolForId(PdbCompilandSymId id);
clang::VarDecl *CreateVariableDecl(PdbSymUid uid,
llvm::codeview::CVSymbol sym,
clang::DeclContext &scope);
clang::NamespaceDecl *GetOrCreateNamespaceDecl(const char *name,
clang::DeclContext &context);
clang::FunctionDecl *CreateFunctionDeclFromId(PdbTypeSymId func_tid,
PdbCompilandSymId func_sid);
clang::FunctionDecl *
CreateFunctionDecl(PdbCompilandSymId func_id, llvm::StringRef func_name,
TypeIndex func_ti, CompilerType func_ct,
uint32_t param_count, clang::StorageClass func_storage,
bool is_inline, clang::DeclContext *parent);
void ParseNamespace(clang::DeclContext &parent);
void ParseAllTypes();
void ParseAllFunctionsAndNonLocalVars();
void ParseDeclsForSimpleContext(clang::DeclContext &context);
void ParseBlockChildren(PdbCompilandSymId block_id);
std::pair<clang::DeclContext *, std::string>
CreateDeclInfoForType(const llvm::codeview::TagRecord &record, TypeIndex ti);
std::pair<clang::DeclContext *, std::string>
CreateDeclInfoForUndecoratedName(llvm::StringRef uname);
clang::QualType CreateSimpleType(TypeIndex ti);
TypeSystemClang &m_clang;
ClangASTImporter m_importer;
llvm::once_flag m_parse_functions_and_non_local_vars;
llvm::once_flag m_parse_all_types;
llvm::DenseMap<clang::Decl *, DeclStatus> m_decl_to_status;
llvm::DenseMap<lldb::user_id_t, clang::Decl *> m_uid_to_decl;
llvm::DenseMap<lldb::user_id_t, clang::QualType> m_uid_to_type;
// From class/struct's opaque_compiler_type_t to a set containing the pairs of
// method's name and CompilerType.
llvm::DenseMap<lldb::opaque_compiler_type_t,
llvm::SmallSet<std::pair<llvm::StringRef, CompilerType>, 8>>
m_cxx_record_map;
llvm::DenseSet<clang::NamespaceDecl *> m_parsed_namespaces;
};
} // namespace npdb
} // namespace lldb_private
#endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_PDBASTBUILDER_H
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