[Haskell-cafe] What's the deal with Clean?
qdunkan at gmail.com
Fri Nov 6 02:01:57 EST 2009
> And this is confusing to those of us who are not compiler experts.
> Haskell knows when I have a list of Doubles, you know, because it's strongly
> Then it proceeds to box them. Huh ?
> The laziness thing has many example od _reducing_ efficiency, but there
> seems to be a real lack of example
> where it helps. In fact it seems to _always_ hurt. People sure seem
> excited about it. Me, not so excited.
I have a program that involves a somewhat involved "compilation"
pipeline. As a result of laziness, it's all done incrementally and I
can start getting results right away, which is essential to my
application. Without laziness I'd have to do something awkward and
complicated like break it into a lot of message passing threads or
process in chunks (and it's impossible to know how much context each
chunk will need without further hackery). I can abort the computation
cleanly by simply stopping the consumer, and everything gets GCed.
And I get all sorts of convenient idioms like 'zip [0..]' and
calculating stuff in 'where' that I may not need.
And it's just fun.
So I'm still excited about it :)
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