1//===-- Demangle.cpp - Common demangling functions ------------------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8/// 9/// \file This file contains definitions of common demangling functions. 10/// 11//===----------------------------------------------------------------------===// 12 13#include "llvm/Demangle/Demangle.h" 14#include <cstdlib> 15 16static bool isItaniumEncoding(const std::string &MangledName) { 17 size_t Pos = MangledName.find_first_not_of('_'); 18 // A valid Itanium encoding requires 1-4 leading underscores, followed by 'Z'. 19 return Pos > 0 && Pos <= 4 && MangledName[Pos] == 'Z'; 20} 21 22std::string llvm::demangle(const std::string &MangledName) { 23 char *Demangled; 24 if (isItaniumEncoding(MangledName)) 25 Demangled = itaniumDemangle(MangledName.c_str(), nullptr, nullptr, nullptr); 26 else 27 Demangled = microsoftDemangle(MangledName.c_str(), nullptr, nullptr, 28 nullptr, nullptr); 29 30 if (!Demangled) 31 return MangledName; 32 33 std::string Ret = Demangled; 34 free(Demangled); 35 return Ret; 36} 37