Subject:
Re: A review of changes between 5.1 and 5.2-work3
From:
Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br>
Date:
Thu, 20 May 2010 13:42:26 -0300
To:
Lua list <lua@bazar2.conectiva.com.br>
> No more "in env do ... end". So what's now the preferred idiom for
> executing a given function in different environments?
>
> (passing the desired environment as an argument and setting_ENV at the
> beginning of the called function?)
You could write your function to be run in different environments:
function f(_ENV,...)
... -- code that never even mentions _ENV!
end
Or you could provide a setter:
do
local _ENV=_ENV
function setenv_for_f(env)
_ENV=env
end
function f(...)
...
end
end
