Re: How to undefine a function?

[Peter Shook <pshook@...>]

Gyorgy Bozoki wrote:
> Is there a way to learn what functions are defined when I call lua_dofile() /
> lua_dostring()? And using this information, is there a way to programmatically
> undefine these functions?

Here is an example to help you get started.

  lua_newtable(L);  /* new stuff */
  lua_newtable(L);  /* metatable */
  lua_pushliteral(L, "__index");
  lua_pushvalue(L, -3);
  lua_settable(L, -3);
  lua_pushliteral(L, "__newindex");
  lua_pushvalue(L, -3);
  lua_settable(L, -3);
  lua_setmetatable(L, LUA_GLOBALSINDEX);
  lua_setglobal(L, "newstuff");

  lua_dofile(L, "x.lua");

  lua_pushnil(L);
  lua_setmetatable(L, LUA_GLOBALSINDEX);

- Peter