[Haskell-cafe] Converting IO [XmlTree] to [XmlTree]

Cristiano Paris frodo at theshire.org
Tue Apr 14 11:08:02 EDT 2009

On Tue, Apr 14, 2009 at 5:01 PM, Luke Palmer <lrpalmer at gmail.com> wrote:
> ...
> This is very important: you cannot.

I'd answer "You shouldn't, unless you know what you are doing". In
some cases, not only is unsafePerformIO desirable but also necessary
(I'm thinking of Debug.Trace).


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