Function luaG_errormsg

src/Chain/libraries/glua/ldebug.cpp:645–656

void luaG_errormsg(lua_State *L, const char *msg) {
    if (L->errfunc != 0) {  /* is there an error handling function? */
        StkId errfunc = restorestack(L, L->errfunc);
        setobjs2s(L, L->top, L->top - 1);  /* move argument */
        setobjs2s(L, L->top - 1, errfunc);  /* push function */
        L->top++;  /* assume EXTRA_STACK */
        luaD_callnoyield(L, L->top - 2, 1);  /* call it */
    }
	if(nullptr != msg) 
		lua_set_run_error(L, msg);
    luaD_throw(L, LUA_ERRRUN);
}


void luaG_runerror(lua_State *L, const char *fmt, ...) {