hanchenye-llvm-project/lld/Common/Strings.cpp

33 lines
1.1 KiB
C++

//===- Strings.cpp -------------------------------------------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lld/Common/Strings.h"
#include "llvm/Demangle/Demangle.h"
using namespace llvm;
using namespace lld;
// Returns the demangled C++ symbol name for Name.
Optional<std::string> lld::demangleItanium(StringRef Name) {
// itaniumDemangle can be used to demangle strings other than symbol
// names which do not necessarily start with "_Z". Name can be
// either a C or C++ symbol. Don't call itaniumDemangle if the name
// does not look like a C++ symbol name to avoid getting unexpected
// result for a C symbol that happens to match a mangled type name.
if (!Name.startswith("_Z"))
return None;
char *Buf = itaniumDemangle(Name.str().c_str(), nullptr, nullptr, nullptr);
if (!Buf)
return None;
std::string S(Buf);
free(Buf);
return S;
}