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Refactor typeid_name<T> slighlty

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This commit is contained in:
Peter Dimov
2021-10-27 03:18:52 +03:00
parent 585ac9ace1
commit 79b7c49fb3
1 changed files with 34 additions and 22 deletions
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56
include/boost/core/type_name.hpp
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@ -22,6 +22,7 @@
#include <utility>
#include <cstdio>
#include <cstddef>
#include <cstring>
#include <iosfwd>
#if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
# include <string_view>
@ -41,54 +42,60 @@ template<class T> struct tn_identity
typedef T type;
};
// tn_remove_prefix
inline bool tn_remove_prefix( std::string& str, char const* prefix )
{
std::size_t n = std::strlen( prefix );
if( str.substr( 0, n ) == prefix )
{
str = str.substr( n );
return true;
}
else
{
return false;
}
}
#if !defined(BOOST_NO_TYPEID)
// typeid_name
template<class T> std::string typeid_name()
inline std::string fix_typeid_name( char const* n )
{
std::string r = boost::core::demangle( typeid(T).name() );
std::string r = boost::core::demangle( n );
#if defined(_MSC_VER)
if( r.substr( 0, 6 ) == "class " )
{
r = r.substr( 6 );
}
if( r.substr( 0, 7 ) == "struct " )
{
r = r.substr( 7 );
}
if( r.substr( 0, 5 ) == "enum " )
{
r = r.substr( 5 );
}
tn_remove_prefix( r, "class " );
tn_remove_prefix( r, "struct " );
tn_remove_prefix( r, "enum " );
#endif
// libc++ inline namespace
if( r.substr( 0, 10 ) == "std::__1::" )
if( tn_remove_prefix( r, "std::__1::" ) )
{
r = "std::" + r.substr( 10 );
r = "std::" + r;
}
// libstdc++ inline namespace
if( r.substr( 0, 14 ) == "std::__cxx11::" )
if( tn_remove_prefix( r, "std::__cxx11::" ) )
{
r = "std::" + r.substr( 14 );
r = "std::" + r;
}
#if defined(BOOST_MSVC) && BOOST_MSVC == 1600
// msvc-10.0 puts TR1 things in std::tr1
if( r.substr( 0, 10 ) == "std::tr1::" )
if( tn_remove_prefix( r, "std::tr1::" ) )
{
r = "std::" + r.substr( 10 );
r = "std::" + r;
}
#endif
@ -96,6 +103,11 @@ template<class T> std::string typeid_name()
return r;
}
template<class T> std::string typeid_name()
{
return fix_typeid_name( typeid(T).name() );
}
// template names
template<class T> std::string class_template_name()