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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 | // __has_include is currently supported by GCC and Clang. However GCC 4.9 may have issues and | |
21 | // returns 1 for 'defined( __has_include )', while '__has_include' is actually not supported: | |
22 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63662 | |
23 | #if defined( __has_include ) && (!defined( BOOST_GCC ) || (__GNUC__ + 0) >= 5) | |
24 | # if __has_include(<cxxabi.h>) | |
25 | # define BOOST_CORE_HAS_CXXABI_H | |
26 | # endif | |
27 | #elif defined( __GLIBCXX__ ) || defined( __GLIBCPP__ ) | |
28 | # define BOOST_CORE_HAS_CXXABI_H | |
29 | #endif | |
30 | ||
31 | #if defined( BOOST_CORE_HAS_CXXABI_H ) | |
32 | # include <cxxabi.h> | |
33 | // For some archtectures (mips, mips64, x86, x86_64) cxxabi.h in Android NDK is implemented by gabi++ library | |
34 | // (https://android.googlesource.com/platform/ndk/+/master/sources/cxx-stl/gabi++/), which does not implement | |
35 | // abi::__cxa_demangle(). We detect this implementation by checking the include guard here. | |
36 | # if defined( __GABIXX_CXXABI_H__ ) | |
37 | # undef BOOST_CORE_HAS_CXXABI_H | |
38 | # else | |
39 | # include <cstdlib> | |
40 | # include <cstddef> | |
41 | # endif | |
42 | #endif | |
43 | ||
44 | namespace boost | |
45 | { | |
46 | ||
47 | namespace core | |
48 | { | |
49 | ||
50 | inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT; | |
51 | inline void demangle_free( char const * name ) BOOST_NOEXCEPT; | |
52 | ||
53 | class scoped_demangled_name | |
54 | { | |
55 | private: | |
56 | char const * m_p; | |
57 | ||
58 | public: | |
59 | explicit scoped_demangled_name( char const * name ) BOOST_NOEXCEPT : | |
60 | m_p( demangle_alloc( name ) ) | |
61 | { | |
62 | } | |
63 | ||
64 | ~scoped_demangled_name() BOOST_NOEXCEPT | |
65 | { | |
66 | demangle_free( m_p ); | |
67 | } | |
68 | ||
69 | char const * get() const BOOST_NOEXCEPT | |
70 | { | |
71 | return m_p; | |
72 | } | |
73 | ||
74 | BOOST_DELETED_FUNCTION(scoped_demangled_name( scoped_demangled_name const& )) | |
75 | BOOST_DELETED_FUNCTION(scoped_demangled_name& operator= ( scoped_demangled_name const& )) | |
76 | }; | |
77 | ||
78 | ||
79 | #if defined( BOOST_CORE_HAS_CXXABI_H ) | |
80 | ||
81 | inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT | |
82 | { | |
83 | int status = 0; | |
84 | std::size_t size = 0; | |
85 | return abi::__cxa_demangle( name, NULL, &size, &status ); | |
86 | } | |
87 | ||
88 | inline void demangle_free( char const * name ) BOOST_NOEXCEPT | |
89 | { | |
90 | std::free( const_cast< char* >( name ) ); | |
91 | } | |
92 | ||
93 | inline std::string demangle( char const * name ) | |
94 | { | |
95 | scoped_demangled_name demangled_name( name ); | |
96 | char const * const p = demangled_name.get(); | |
97 | if( p ) | |
98 | { | |
99 | return p; | |
100 | } | |
101 | else | |
102 | { | |
103 | return name; | |
104 | } | |
105 | } | |
106 | ||
107 | #else | |
108 | ||
109 | inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT | |
110 | { | |
111 | return name; | |
112 | } | |
113 | ||
114 | inline void demangle_free( char const * ) BOOST_NOEXCEPT | |
115 | { | |
116 | } | |
117 | ||
118 | inline std::string demangle( char const * name ) | |
119 | { | |
120 | return name; | |
121 | } | |
122 | ||
123 | #endif | |
124 | ||
125 | } // namespace core | |
126 | ||
127 | } // namespace boost | |
128 | ||
129 | #undef BOOST_CORE_HAS_CXXABI_H | |
130 | ||
131 | #endif // #ifndef BOOST_CORE_DEMANGLE_HPP_INCLUDED |