Re: Lua 5 global state
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- Subject: Re: Lua 5 global state
- From: Wim Couwenberg <w.couwenberg@...>
- Date: 2003年8月14日 23:30:42 +0200
Hi,
> I have done some reading and I guess my question is whether
> the following scheme will work?
> /* get a C function on the stack from the global env somehow */
> <some code>
> lua_getfenv(L, ,-1);
The environment of a C function is always the _current_ C
global environment (much like in Lua 4), so your code (after
loading the chunk) could possibly be replaced by:
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_setfenv(L, -2);
> /* set the global env back to what it was b4 the lua_call */
> lua_setfenv(L, -1);
The global (C) env _never changed_ in the first place, so this
is not necessary. Remember that the lua_setfenv call only
affected the environment of the loaded chunk!
--
Wim