MulleObjCExceptionHandler.md

MulleObjCExceptionHandler

Core exception handling functions for the MulleObjC runtime.

Exception Functions

• mulle_objc_throw - Throws an exception through the runtime
• mulle_objc_break_exception - Breakpoint function for catching all exceptions

Handler Management

• NSGetUncaughtExceptionHandler - Gets current uncaught exception handler
• NSSetUncaughtExceptionHandler - Sets uncaught exception handler

Usage Example

// Set custom handler
void MyExceptionHandler(id exception)
{
   fprintf(stderr, "Uncaught exception: %s\n", 
           [exception description]);
   abort();
}

NSSetUncaughtExceptionHandler(MyExceptionHandler);

Important Notes

1. Thread Safety

   • Exception handling is thread-safe by design
   • Handlers are stored per-universe

2. Debugging

   • Set breakpoint on mulle_objc_break_exception to catch all exceptions
   • Handler is called before program termination