/* Error in context of caller. */
LJ_NOINLINE void lj_err_callermsg(lua_State *L, const char *msg)
{
TValue *frame = L->base-1;
TValue *pframe = NULL;
if (frame_islua(frame)) {
pframe = frame_prevl(frame);
} else if (frame_iscont(frame)) {
#if LJ_HASFFI
if ((frame-1)->u32.lo == LJ_CONT_FFI_CALLBACK) {
pframe = frame;
frame = NULL;
} else
#endif
{
pframe = frame_prevd(frame);
#if LJ_HASFFI
/* Remove frame for FFI metamethods. */
if (frame_func(frame)->c.ffid >= FF_ffi_meta___index &&
frame_func(frame)->c.ffid <= FF_ffi_meta___tostring) {
L->base = pframe+1;
L->top = frame;
setcframe_pc(cframe_raw(L->cframe), frame_contpc(frame));
}
#endif
}
}
lj_debug_addloc(L, msg, pframe, frame);
lj_err_run(L);
}
/* Formatted runtime error message. */
LJ_NORET LJ_NOINLINE static void err_msgv(lua_State *L, ErrMsg em, ...)
{
const char *msg;
va_list argp;
va_start(argp, em);
if (curr_funcisL(L)) L->top = curr_topL(L);
msg = lj_str_pushvf(L, err2msg(em), argp);
va_end(argp);
lj_debug_addloc(L, msg, L->base-1, NULL);
lj_err_run(L);
}
/* Error in context of caller. */
LJ_NOINLINE void lj_err_callermsg(lua_State *L, const char *msg)
{
TValue *frame = L->base-1;
TValue *pframe = NULL;
if (frame_islua(frame)) {
pframe = frame_prevl(frame);
} else if (frame_iscont(frame)) {
pframe = frame_prevd(frame);
#if LJ_HASFFI
/* Remove frame for FFI metamethods. */
if (frame_func(frame)->c.ffid >= FF_ffi_meta___index &&
frame_func(frame)->c.ffid <= FF_ffi_meta___tostring) {
L->base = pframe+1;
L->top = frame;
}
#endif
}
lj_debug_addloc(L, msg, pframe, frame);
lj_err_run(L);
}
LUALIB_API void luaL_where(lua_State *L, int level)
{
int size;
cTValue *frame = lj_debug_frame(L, level, &size);
lj_debug_addloc(L, "", frame, size ? frame+size : NULL);
}