| 1 | #ifndef BOOST_CORE_DEMANGLE_HPP_INCLUDED |
|---|---|
| 2 | #define BOOST_CORE_DEMANGLE_HPP_INCLUDED |
| 3 | |
| 4 | // core::demangle |
| 5 | // |
| 6 | // Copyright 2014 Peter Dimov |
| 7 | // Copyright 2014 Andrey Semashev |
| 8 | // |
| 9 | // Distributed under the Boost Software License, Version 1.0. |
| 10 | // See accompanying file LICENSE_1_0.txt or copy at |
| 11 | // http://www.boost.org/LICENSE_1_0.txt |
| 12 | |
| 13 | #include <boost/config.hpp> |
| 14 | #include <string> |
| 15 | |
| 16 | #if defined(BOOST_HAS_PRAGMA_ONCE) |
| 17 | # pragma once |
| 18 | #endif |
| 19 | |
| 20 | #if defined( __clang__ ) && defined( __has_include ) |
| 21 | # if __has_include(<cxxabi.h>) |
| 22 | # define BOOST_CORE_HAS_CXXABI_H |
| 23 | # endif |
| 24 | #elif defined( __GLIBCXX__ ) || defined( __GLIBCPP__ ) |
| 25 | # define BOOST_CORE_HAS_CXXABI_H |
| 26 | #endif |
| 27 | |
| 28 | #if defined( BOOST_CORE_HAS_CXXABI_H ) |
| 29 | # include <cxxabi.h> |
| 30 | // For some archtectures (mips, mips64, x86, x86_64) cxxabi.h in Android NDK is implemented by gabi++ library |
| 31 | // (https://android.googlesource.com/platform/ndk/+/master/sources/cxx-stl/gabi++/), which does not implement |
| 32 | // abi::__cxa_demangle(). We detect this implementation by checking the include guard here. |
| 33 | # if defined( __GABIXX_CXXABI_H__ ) |
| 34 | # undef BOOST_CORE_HAS_CXXABI_H |
| 35 | # else |
| 36 | # include <cstdlib> |
| 37 | # include <cstddef> |
| 38 | # endif |
| 39 | #endif |
| 40 | |
| 41 | namespace boost |
| 42 | { |
| 43 | |
| 44 | namespace core |
| 45 | { |
| 46 | |
| 47 | inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT; |
| 48 | inline void demangle_free( char const * name ) BOOST_NOEXCEPT; |
| 49 | |
| 50 | class scoped_demangled_name |
| 51 | { |
| 52 | private: |
| 53 | char const * m_p; |
| 54 | |
| 55 | public: |
| 56 | explicit scoped_demangled_name( char const * name ) BOOST_NOEXCEPT : |
| 57 | m_p( demangle_alloc( name ) ) |
| 58 | { |
| 59 | } |
| 60 | |
| 61 | ~scoped_demangled_name() BOOST_NOEXCEPT |
| 62 | { |
| 63 | demangle_free( name: m_p ); |
| 64 | } |
| 65 | |
| 66 | char const * get() const BOOST_NOEXCEPT |
| 67 | { |
| 68 | return m_p; |
| 69 | } |
| 70 | |
| 71 | BOOST_DELETED_FUNCTION(scoped_demangled_name( scoped_demangled_name const& )) |
| 72 | BOOST_DELETED_FUNCTION(scoped_demangled_name& operator= ( scoped_demangled_name const& )) |
| 73 | }; |
| 74 | |
| 75 | |
| 76 | #if defined( BOOST_CORE_HAS_CXXABI_H ) |
| 77 | |
| 78 | inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT |
| 79 | { |
| 80 | int status = 0; |
| 81 | std::size_t size = 0; |
| 82 | return abi::__cxa_demangle( mangled_name: name, NULL, length: &size, status: &status ); |
| 83 | } |
| 84 | |
| 85 | inline void demangle_free( char const * name ) BOOST_NOEXCEPT |
| 86 | { |
| 87 | std::free( ptr: const_cast< char* >( name ) ); |
| 88 | } |
| 89 | |
| 90 | inline std::string demangle( char const * name ) |
| 91 | { |
| 92 | scoped_demangled_name demangled_name( name ); |
| 93 | char const * const p = demangled_name.get(); |
| 94 | if( p ) |
| 95 | { |
| 96 | return p; |
| 97 | } |
| 98 | else |
| 99 | { |
| 100 | return name; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | #else |
| 105 | |
| 106 | inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT |
| 107 | { |
| 108 | return name; |
| 109 | } |
| 110 | |
| 111 | inline void demangle_free( char const * ) BOOST_NOEXCEPT |
| 112 | { |
| 113 | } |
| 114 | |
| 115 | inline std::string demangle( char const * name ) |
| 116 | { |
| 117 | return name; |
| 118 | } |
| 119 | |
| 120 | #endif |
| 121 | |
| 122 | } // namespace core |
| 123 | |
| 124 | } // namespace boost |
| 125 | |
| 126 | #undef BOOST_CORE_HAS_CXXABI_H |
| 127 | |
| 128 | #endif // #ifndef BOOST_CORE_DEMANGLE_HPP_INCLUDED |
| 129 |