Re: LUA_ENVIRONINDEX, LUA_GLOBALSINDEX and lua_getglobal/lua_setglobal

["Leo Razoumov" <slonik.az@...>]

On 12/19/07, Doug Currie <doug.currie@gmail.com> wrote:
> On Wednesday, December 19, 2007 Leo Razoumov wrote:
>
> > Let say, we have C-closure foo. I will change its environmental table
> > with lua_setfenv. As a result, LUA_ENVIRONINDEX pseudo-index will
> > reference the new environment table, while LUA_GLOBALSINDEX is not
> > changed and refers to the "thread environment".
> > lua_getglobal/lua_setglobal functions use environment table at
> > LUA_GLOBALSINDEX location and will not see foo's new function
> > environment.
>
> > Am I missing something??
>
> Assuming there is a table stored in the C closure's environment, to
> store a value in the table:
>
>     lua_pushliteral (L, "somevalue");               /* value to store */
>     lua_setfield (L, LUA_ENVIRONINDEX, "somekey");  /* key */
>
> and to retrieve it
>
>     lua_getfield (L, LUA_ENVIRONINDEX, "somekey");
>
> e
>
> --
> Doug Currie
> Londonderry, NH, USA
>

I would like to use lua_setglobal and lua_getglobal. These functions
use LUA_GLOBALSINDEX.

--Leo--