65 lines
2.0 KiB
C++
Vendored
65 lines
2.0 KiB
C++
Vendored
//===-- 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;
|
|
}
|