LLDB mainline
Enumerations | Functions
Mangled.cpp File Reference
#include "lldb/Core/Mangled.h"
#include "lldb/Core/DataFileCache.h"
#include "lldb/Core/RichManglingContext.h"
#include "lldb/Target/Language.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/DataEncoder.h"
#include "lldb/Utility/LLDBLog.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/RegularExpression.h"
#include "lldb/Utility/Stream.h"
#include "lldb/lldb-enumerations.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Demangle/Demangle.h"
#include "llvm/Support/Compiler.h"
#include <mutex>
#include <string>
#include <string_view>
#include <utility>
#include <cstdlib>
#include <cstring>

Go to the source code of this file.


enum  MangledEncoding { Empty = 0u , DemangledOnly = 1u , MangledOnly = 2u , MangledAndDemangled = 3u }


static bool cstring_is_mangled (llvm::StringRef s)
static char * GetMSVCDemangledStr (std::string_view M)
static char * GetItaniumDemangledStr (const char *M)
static char * GetRustV0DemangledStr (std::string_view M)
static char * GetDLangDemangledStr (std::string_view M)
Streamoperator<< (Stream &s, const Mangled &obj)

Enumeration Type Documentation

◆ MangledEncoding


If the Mangled object has neither a mangled name or demangled name we can encode the object with one zero byte using the Empty enumeration.


If the Mangled object has only a demangled name and no mangled named, we can encode only the demangled name.


If the mangle name can calculate the demangled name (it is the mangled/demangled counterpart), then we only need to encode the mangled name as the demangled name can be recomputed.


If we have a Mangled object with two different names that are not related then we need to save both strings.

This can happen if we have a name that isn't a true mangled name, but we want to be able to lookup a symbol by name and type in the symbol table. We do this for Objective C symbols like "OBJC_CLASS_$_NSValue" where the mangled named will be set to "OBJC_CLASS_$_NSValue" and the demangled name will be manually set to "NSValue". If we tried to demangled the name "OBJC_CLASS_$_NSValue" it would fail, but in these cases we want these unrelated names to be preserved.

Definition at line 408 of file Mangled.cpp.

Function Documentation

◆ cstring_is_mangled()

static bool cstring_is_mangled ( llvm::StringRef  s)

◆ GetDLangDemangledStr()

static char * GetDLangDemangledStr ( std::string_view  M)

◆ GetItaniumDemangledStr()

static char * GetItaniumDemangledStr ( const char *  M)

◆ GetMSVCDemangledStr()

static char * GetMSVCDemangledStr ( std::string_view  M)

◆ GetRustV0DemangledStr()

static char * GetRustV0DemangledStr ( std::string_view  M)

◆ operator<<()

Stream & operator<< ( Stream s,
const Mangled obj