Function lua_insert

src/lapi.cpp:278–289

#ifndef PLUTO_LUA_LINKABLE
LUA_API void lua_insert (lua_State *L, int idx) {
  StkId p, t;
  TValue temp;
  lua_lock(L);
  p = index2stack(L, idx);  /* start of segment */
  setobj(L, &temp, s2v(L->top.p - 1));
  for (t = L->top.p - 1; t > p; --t) {  /* end of stack segment being rotated */
    setobjs2s(L, t, t - 1);
  }
  setobj2s(L, p, &temp);
  lua_unlock(L);
}

LUA_API void lua_remove (lua_State *L, int idx) {
  StkId p, t;