[Haskell-cafe] If you'd design a Haskell-like language, what would you do different?
ketil at malde.org
Fri Mar 9 13:35:41 CET 2012
Jerzy Karczmarczuk <jerzy.karczmarczuk at unicaen.fr> writes:
> and the source of it power" - if I might cite you - is that we don't see
> the difference between an object and the process which creates it.
Interestingly, according to Wikipedia's article on "type system":
A type system associates a type with each computed value.
but later cites Pierce:
a tractable syntactic framework for classifying phrases according to
the kinds of values they compute
While the former might be said to avoid _|_ by defining it to not be a
"value" that is computed, the latter clearly must include it, as a
the computation of a "phrase" might not terminate (as longs as the
language is Turing-complete, of course).
Anyway, I think also non-lazy languages has bottom inhabiting their
types, it's just that since it leads more immediately to failure, it's
not usually taken into account.
If I haven't seen further, it is by standing in the footprints of giants
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