GetTypeName.h

// Copyright (c) Electronic Arts Inc. All rights reserved.
 
 
#ifndef GETTYPENAME_H
#define GETTYPENAME_H
 
 
#include <EABase/eabase.h>
#include <EASTL/type_traits.h>
#include <EASTL/string.h>
#include <stdlib.h>
#include <typeinfo>
 
 
// EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE
//
// Defined as 0 or 1. The value depends on the compilation environment.
// Indicates if we can use system-provided abi::__cxa_demangle() at runtime.
//
#if !defined(EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE)
    #if (defined(EA_PLATFORM_LINUX) || defined(EA_PLATFORM_APPLE)) && defined(EA_PLATFORM_DESKTOP)
        #define EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE 1
    #else
        #define EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE 0
    #endif
#endif
 
 
#if EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE
    #include <cxxabi.h>
#elif EA_WINAPI_FAMILY_PARTITION(EA_WINAPI_PARTITION_DESKTOP)
    EA_DISABLE_ALL_VC_WARNINGS();
    #include <Windows.h>
    #include <DbgHelp.h>
    #pragma comment(lib, "dbghelp.lib")
    EA_RESTORE_ALL_VC_WARNINGS();
#endif
 
 
// EASTLTEST_GETTYPENAME_AVAILABLE
//
// Defined as 0 or 1. The value depends on the compilation environment.
// Indicates if we can use system-provided abi::__cxa_demangle() at runtime.
//
#if !defined(EASTLTEST_GETTYPENAME_AVAILABLE)
    #if (EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE || EA_WINAPI_FAMILY_PARTITION(EA_WINAPI_PARTITION_DESKTOP)) && (!defined(EA_COMPILER_NO_RTTI) || defined(_MSC_VER)) // VC++ works without RTTI enabled.
        #define EASTLTEST_GETTYPENAME_AVAILABLE 1
    #else
        #define EASTLTEST_GETTYPENAME_AVAILABLE 0
    #endif
#endif
 
 
template <typename T>
eastl::string GetTypeName()
{
    eastl::string result;
 
    #if !defined(EA_COMPILER_NO_RTTI) || defined(_MSC_VER) // VC++ works without RTTI enabled.
        typedef typename eastl::remove_reference<T>::type TR;
 
        const char* pName = typeid(TR).name();
 
        #if EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE
            const char* pDemangledName = abi::__cxa_demangle(pName, NULL, NULL, NULL);
 
        #elif EA_WINAPI_FAMILY_PARTITION(EA_WINAPI_PARTITION_DESKTOP)
            char pDemangledName[1024];
            DWORD count = UnDecorateSymbolName(pName, pDemangledName, (DWORD)EAArrayCount(pDemangledName), UNDNAME_NO_THISTYPE | UNDNAME_NO_ACCESS_SPECIFIERS | UNDNAME_NO_MEMBER_TYPE);
            if(count == 0)
                pDemangledName[0] = 0;
        #else
            const char* pDemangledName = NULL;
        #endif
 
        if(pDemangledName && pDemangledName[0])
            result = pDemangledName;
        else
            result = pName;
 
        if(eastl::is_const<TR>::value)
            result += " const";
 
        if(eastl::is_volatile<TR>::value)
            result += " volatile";
 
        if(eastl::is_lvalue_reference<T>::value)
            result += "&";
        else if(eastl::is_rvalue_reference<T>::value)
            result += "&&";
 
        if(pDemangledName)
        {
            #if EASTL_LIBSTDCPP_DEMANGLE_AVAILABLE
                free((void*)(pDemangledName));
            #endif
        }
    #endif
 
    return result;
}
 
 
#endif // Header include guard