tables, threads and LUTs

src/noom.h

@@ -227,6 +227,13 @@ noom_Exit noom_return(noom_LuaVM* vm, noom_uint_t retc);
 noom_Exit noom_yieldk(noom_LuaVM* vm, noom_uint_t n, noom_KFunction* f, void* ctx);
 #define noom_yield(vm, n) noom_yieldk((vm), (n), 0, 0)
 
+// push the current error handler
+noom_Exit noom_pusherrhandler(noom_LuaVM *vm);
+// pops the top value and sets it as the error handler.
+// nil is a perfectly fine error handler, it just does not get called.
+// In the case of an error, noom_callk() will also call this error handler.
+noom_Exit noom_seterrhandler(noom_LuaVM *vm);
+
 // Like a noom_call, except instead of calling, it resumes coroutines.
 // This cannot yield but allows yields.
 noom_Exit noom_resume(noom_LuaVM* vm, noom_uint_t argc, noom_uint_t retc);