iutest_exception.hpp

[詳解]

//======================================================================
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
//======================================================================
#ifndef INCG_IRIS_IUTEST_EXCEPTION_HPP_B73B2E25_97C8_4DFC_BC32_5E53039A1A64_
#define INCG_IRIS_IUTEST_EXCEPTION_HPP_B73B2E25_97C8_4DFC_BC32_5E53039A1A64_
 
//======================================================================
// include
 
#if IUTEST_HAS_EXCEPTIONS
// IWYU pragma: begin_exports
#include <exception>
// IWYU pragma: end_exports
 
namespace iutest {
namespace detail
{
 
inline ::std::string FormatCxxException(const char* description)
{
    iu_stringstream strm;
    if( description != NULL )
    {
        strm << "C++ exception with description \"" << description << "\"";
    }
    else
    {
        strm << "Unknown C++ exception";
    }
    return strm.str();
}
 
}   // end of namespace detail
}   // end of namespace iutest
 
#if IUTEST_HAS_SEH
#include <iomanip>
 
namespace iutest {
namespace detail
{
 
class seh_exception : public ::std::exception
{
public:
    seh_exception() : ::std::exception() {}
    explicit seh_exception(const char *const& what) : ::std::exception(what) {}
public:
    static void translator(DWORD code, _EXCEPTION_POINTERS* ep)
    {
        IUTEST_UNUSED_VAR(ep);
        iu_stringstream strm;
#if IUTEST_HAS_IOMANIP
        strm << "SEH exception with code 0x" << ::std::setbase(16) << code;
#else
        strm << "SEH exception with code " << code;
#endif
        throw seh_exception(strm.str().c_str());
    }
    static int should_process_through_break_and_cppexceptions(DWORD code)
    {
        bool should_handle = true;
        // break point と C++ 例外はハンドリングしない
        if( code == EXCEPTION_BREAKPOINT )
            should_handle = false;
        if( code == kCxxExceptionCode )
            should_handle = false;
        return should_handle ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
    }
public:
    static const DWORD kCxxExceptionCode = 0xe06d7363;  
};
 
template<typename T>
void seh_passthrough(T func)
{
    _EXCEPTION_POINTERS* ep = NULL;
    __try
    {
        (func)();
    }
    __except( ep = GetExceptionInformation()
        , seh_exception::should_process_through_break_and_cppexceptions(GetExceptionCode()) )
    {
        seh_exception::translator(GetExceptionCode(), ep);
    }
}
 
 
}   // end of namespace detail
}   // end of namespace iutest
 
#endif
 
#endif
 
#endif // INCG_IRIS_IUTEST_EXCEPTION_HPP_B73B2E25_97C8_4DFC_BC32_5E53039A1A64_