Function luaD_growstack

libraries/AP_Scripting/lua/src/ldo.c:200–216

void luaD_growstack (lua_State *L, int n) {
  int size = L->stacksize;
  if (size > LUAI_MAXSTACK)  /* error after extra size? */
    luaD_throw(L, LUA_ERRERR);
  else {
    int needed = cast_int(L->top - L->stack) + n + EXTRA_STACK;
    int newsize = 2 * size;
    if (newsize > LUAI_MAXSTACK) newsize = LUAI_MAXSTACK;
    if (newsize < needed) newsize = needed;
    if (newsize > LUAI_MAXSTACK) {  /* stack overflow? */
      luaD_reallocstack(L, ERRORSTACKSIZE);
      luaG_runerror(L, "stack overflow");
    }
    else
      luaD_reallocstack(L, newsize);
  }
}


static int stackinuse (lua_State *L) {