[Date Prev][Date Next][Thread Prev][Thread Next]
- Subject: Re: [ANN] Lua 5.2.0 (beta-rc1) now available
- From: Matthew Frazier <leafstormrush@...>
- Date: Thu, 16 Jun 2011 08:48:04 -0400
On 06/16/2011 12:03 AM, Lorenzo Donati wrote:
Since this "setting env for a function" seems not too rare (both for
efficiency reasons - as Patrick said - or for coping with DSL parsing,
as in my usual case), I wonder whether It could be useful to provide a
library function such as runin(env, func) that will run func in the
provided environment (and maybe this could also bypass the limitation
that debug info should be present, removing a source of indeterminacy
when using Sergei's replacements).
I second this idea, though callin(env, f, ...) might be a better name to
fit with existing function names. It would also make some DSL cases
easier where the same function needs to be re-evaluated multiple times
in different environments.
Probably this could cope with most of the complaints of a missing
setfenv/getfenv in 5.2 (I don't remember any other use case coming up in
the list which wasn't covered elegantly by other 5.2. features).
Regards, Matthew "LeafStorm" Frazier