Re: Lua 5.1: Anyone using the guard/finalize patch?

[Tom N Harris <telliamed@...>]

On 02/24/2011 06:24 PM, Joshua Jensen wrote:
> It is found here:
>
> http://lua-users.org/lists/lua-l/2008-02/msg00243.html
>
> I was experimenting with it the other day and noticed the following code
> crashes inside lparser.c:
>
> function Func()
> running = true; finalize running = false end
> if running then return false end
> return Idle_loop() -- Tail call
> end
>
> The patch doesn't look like it uses the OP_TAILCALL instruction at all,
> missing out on valuable savings.
>
> Does anyone have an update or even a better way to do this? It doesn't
> appear to be exactly efficient. I'd love to find a patch that just does
> injection of the code in this manner:

Did you see the the later thread on RAII,
http://lua-users.org/lists/lua-l/2009-08/msg00051.html

I think that was the patch I eventually used. Somewhere in that thread I 
also worked out a pure Lua solution that may suit your needs. Found it, 
at the end of this message, 
http://lua-users.org/lists/lua-l/2009-07/msg00489.html

--
- tom
telliamed@whoopdedo.org