//===-- Demangle.cpp - Common demangling functions ------------------------===// // // 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 // //===----------------------------------------------------------------------===// /// /// \file This file contains definitions of common demangling functions. /// //===----------------------------------------------------------------------===// #include "llvm/Demangle/Demangle.h" #include "llvm/Demangle/StringViewExtras.h" #include <cstdlib> #include <string_view> using llvm::itanium_demangle::starts_with; std::string llvm::demangle(std::string_view MangledName) { std::string Result; if (nonMicrosoftDemangle(MangledName, Result)) return Result; if (starts_with(MangledName, '_') && nonMicrosoftDemangle(MangledName.substr(1), Result)) return Result; if (char *Demangled = microsoftDemangle(MangledName, nullptr, nullptr)) { Result = Demangled; std::free(Demangled); } else { Result = MangledName; } return Result; } static bool isItaniumEncoding(std::string_view S) { // Itanium encoding requires 1 or 3 leading underscores, followed by 'Z'. return starts_with(S, "_Z") || starts_with(S, "___Z"); } static bool isRustEncoding(std::string_view S) { return starts_with(S, "_R"); } static bool isDLangEncoding(std::string_view S) { return starts_with(S, "_D"); } bool llvm::nonMicrosoftDemangle(std::string_view MangledName, std::string &Result) { char *Demangled = nullptr; if (isItaniumEncoding(MangledName)) Demangled = itaniumDemangle(MangledName); else if (isRustEncoding(MangledName)) Demangled = rustDemangle(MangledName); else if (isDLangEncoding(MangledName)) Demangled = dlangDemangle(MangledName); if (!Demangled) return false; Result = Demangled; std::free(Demangled); return true; }