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//===-- 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 <cstdlib>
static bool isItaniumEncoding(const std::string &MangledName) {
size_t Pos = MangledName.find_first_not_of('_');
// A valid Itanium encoding requires 1-4 leading underscores, followed by 'Z'.
return Pos > 0 && Pos <= 4 && MangledName[Pos] == 'Z';
}
static bool isRustEncoding(const std::string &MangledName) {
return MangledName.size() >= 2 && MangledName[0] == '_' &&
MangledName[1] == 'R';
}
std::string llvm::demangle(const std::string &MangledName) {
char *Demangled;
if (isItaniumEncoding(MangledName))
Demangled = itaniumDemangle(MangledName.c_str(), nullptr, nullptr, nullptr);
else if (isRustEncoding(MangledName))
Demangled = rustDemangle(MangledName.c_str(), nullptr, nullptr, nullptr);
else
Demangled = microsoftDemangle(MangledName.c_str(), nullptr, nullptr,
nullptr, nullptr);
if (!Demangled)
return MangledName;
std::string Ret = Demangled;
std::free(Demangled);
return Ret;
}
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