[Haskell-cafe] If you'd design a Haskell-like language, what would you do different?

Ben Lippmeier benl at ouroborus.net
Tue Dec 20 11:38:51 CET 2011


>> > In denotational semantics, every well-formed term in the language must
>> > have a value. So, what is a value of "fix id"?
>> 
>> There isn't one!
>> 
>> Bottoms will be the null pointers of the 2010's, you watch.
>> 
>> This ×1000. Errors go in an error monad.
> 
> Including all possible manifestations of infinite loops?

Some would say that non-termination is a computational effect, and I can argue either way depending on the day of the week.

Of course, the history books show that monads were invented *after* it was decided that Haskell would be a lazy language. Talk about selection bias.

Ben.


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