Lift core::detail::demange to core, move demangled_name to typeinfo.hpp.

2014-06-06 23:30:32 +03:00
parent 231f4406e9
commit cee977fc84
6 changed files with 43 additions and 25 deletions
@@ -0,0 +1,84 @@
+#ifndef BOOST_CORE_DEMANGLE_HPP_INCLUDED
+#define BOOST_CORE_DEMANGLE_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// core::demangle
+//
+// Copyright 2014 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/config.hpp>
+#include <string>
+
+#if defined(__GLIBCXX__) || defined(__GLIBCPP__)
+# include <cxxabi.h>
+# include <cstdlib>
+# include <cstddef>
+# define BOOST_CORE_HAS_CXXABI_H
+#endif
+
+namespace boost
+{
+
+namespace core
+{
+
+#if defined( BOOST_CORE_HAS_CXXABI_H )
+
+// lifted from boost/exception/detail/type_info.hpp
+
+inline std::string demangle( char const * name )
+{
+    struct auto_free
+    {
+        explicit auto_free( char * ptr ): p( ptr )
+        {
+        }
+
+        ~auto_free()
+        {
+            std::free( p );
+        }
+
+        char * p;
+    };
+
+    int status = 0;
+    std::size_t size = 0;
+
+    auto_free demangled( abi::__cxa_demangle( name, NULL, &size, &status ) );
+
+    if( demangled.p )
+    {
+        return demangled.p;
+    }
+    else
+    {
+        return name;
+    }
+}
+
+#else
+
+inline std::string demangle( char const * name )
+{
+    return name;
+}
+
+#endif
+
+} // namespace core
+
+} // namespace boost
+
+#undef BOOST_CORE_HAS_CXXABI_H
+
+#endif // #ifndef BOOST_CORE_DEMANGLE_HPP_INCLUDED