74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/private/safecall.h
|
|
// Purpose: Call a function "safely", i.e. potentially catching exceptions.
|
|
// Author: Vadim Zeitlin
|
|
// Created: 2025-03-20
|
|
// Copyright: (c) 2025 Vadim Zeitlin <vadim@wxwidgets.org>
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_PRIVATE_SAFECALL_H_
|
|
#define _WX_PRIVATE_SAFECALL_H_
|
|
|
|
#include "wx/app.h"
|
|
|
|
#if wxUSE_EXCEPTIONS
|
|
|
|
// Returns true if a special system option disabling catching unhandled
|
|
// exceptions is set.
|
|
//
|
|
// This function is implemented in sysopt.cpp.
|
|
extern bool WXDLLIMPEXP_BASE wxIsCatchUnhandledExceptionsDisabled();
|
|
|
|
// General version calls the given function or function-like object and
|
|
// executes the provided handler if an exception is thrown.
|
|
//
|
|
// Both the function and the handler must return the value of the same type R,
|
|
// possibly void.
|
|
template <typename R, typename T1, typename T2>
|
|
inline R wxSafeCall(const T1& func, const T2& handler)
|
|
{
|
|
#if wxUSE_SYSTEM_OPTIONS
|
|
if ( wxIsCatchUnhandledExceptionsDisabled() )
|
|
{
|
|
return func();
|
|
}
|
|
#endif // wxUSE_SYSTEM_OPTIONS
|
|
|
|
try
|
|
{
|
|
return func();
|
|
}
|
|
catch ( ... )
|
|
{
|
|
return handler();
|
|
}
|
|
}
|
|
|
|
// Simplified version for the common case when the function doesn't return
|
|
// anything and we just want to call wxApp::OnUnhandledException() if it
|
|
// throws.
|
|
template <typename T>
|
|
inline void wxSafeCall(const T& func)
|
|
{
|
|
wxSafeCall<void>(func, wxApp::CallOnUnhandledException);
|
|
}
|
|
|
|
#else // !wxUSE_EXCEPTIONS
|
|
|
|
template <typename R, typename T1, typename T2>
|
|
inline R wxSafeCall(const T1& func, const T2& WXUNUSED(handler))
|
|
{
|
|
return func();
|
|
}
|
|
|
|
template <typename T>
|
|
inline void wxSafeCall(const T& func)
|
|
{
|
|
func();
|
|
}
|
|
|
|
#endif // wxUSE_EXCEPTIONS/!wxUSE_EXCEPTIONS
|
|
|
|
#endif // _WX_PRIVATE_SAFECALL_H_
|