| 233 | |
| 234 | |
| 235 | static int stackinuse (lua_State *L) { |
| 236 | CallInfo *ci; |
| 237 | StkId lim = L->top; |
| 238 | for (ci = L->ci; ci != NULL; ci = ci->previous) { |
| 239 | if (lim < ci->top) lim = ci->top; |
| 240 | } |
| 241 | lua_assert(lim <= L->stack_last); |
| 242 | return cast_int(lim - L->stack) + 1; /* part of stack in use */ |
| 243 | } |
| 244 | |
| 245 | |
| 246 | void luaD_shrinkstack (lua_State *L) { |