On 17/09/2009 13:58, Nicolas Pouillard wrote:
Excerpts from Florian Weimer's message of Wed Sep 16 22:17:08 +0200 2009:
Are there any plans to get rid of hGetContents and the semi-closed
handle state for Haskell Prime?
(I call hGetContents unsafe because it adds side effects to pattern
matching, stricly speaking invalidating most of the transformations
which are expected to be valid in a pure language.)
Would you consider something like [1] as an acceptable replacement?
[1]: http://hackage.haskell.org/package/safe-lazy-io
I rater like this as a workaround for the most common practical problems
with lazy I/O, those of resource control. It doesn't address the deeper
concern that lazy I/O requires a particular evaluation order and is
therefore a bit warty as a language feature - implementing lazy I/O
properly in GHC's parallel mutator was somewhat tricky. I'm not of the
opinion that we should throw out lazy I/O, but it's still a problematic
area in Haskell.
Cheers,
Simon
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