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 15 static bool isItaniumEncoding(const std::string &MangledName) { 16 size_t Pos = MangledName.find_first_not_of('_'); 17 // A valid Itanium encoding requires 1-4 leading underscores, followed by 'Z'. 18 return Pos > 0 && Pos <= 4 && MangledName[Pos] == 'Z'; 19 } 20 21 std::string llvm::demangle(const std::string &MangledName) { 22 char *Demangled; 23 if (isItaniumEncoding(MangledName)) 24 Demangled = itaniumDemangle(MangledName.c_str(), nullptr, nullptr, nullptr); 25 else 26 Demangled = 27 microsoftDemangle(MangledName.c_str(), nullptr, nullptr, nullptr); 28 29 if (!Demangled) 30 return MangledName; 31 32 std::string Ret = Demangled; 33 free(Demangled); 34 return Ret; 35 } 36