Primitive types and Prelude shenanigans
William Lee Irwin III
wli@holomorphy.com
Fri, 16 Feb 2001 00:26:05 -0800
On Fri, Feb 16, 2001 at 05:14:14PM +1100, Fergus Henderson wrote:
> I disagree about the reasonableness of many of your assumptions ;-)
Great! =)
On 15-Feb-2001, William Lee Irwin III <wli@holomorphy.com> wrote:
>> (1) lists are largely untouchable
On Fri, Feb 16, 2001 at 05:14:14PM +1100, Fergus Henderson wrote:
> I want to be able to write a Prelude that has lists as a strict data
> type, rather than a lazy data type.
Hmm, sounds like infinite lists might have trouble there, but I hereby
cast out that assumption.
On 15-Feb-2001, William Lee Irwin III <wli@holomorphy.com> wrote:
>> (4) I/O libs will probably not be toyed with much (monads are good!)
>> (5) logical values will either be a monotype or a pointed set class
>> (may be too much to support more than a monotype)
On Fri, Feb 16, 2001 at 05:14:14PM +1100, Fergus Henderson wrote:
> I think that that replacing the I/O libs is likely to be a much more
> useful and realistic proposition than replacing the boolean type.
I won't pretend for an instant that replacing the Boolean type will
be remotely useful to more than a handful of people.
On 15-Feb-2001, William Lee Irwin III <wli@holomorphy.com> wrote:
>> (9) probably no one will try to alter application syntax to operate
>> on things like instances of class Applicable
On Fri, Feb 16, 2001 at 05:14:14PM +1100, Fergus Henderson wrote:
> That's a separate issue; you're talking here about a language
> extension, not just a new Prelude.
I'm not sure one would have to go that far (though I'm willing to be
convinced), but either way, we need not concern ourselves.
On 15-Feb-2001, William Lee Irwin III <wli@holomorphy.com> wrote:
>> (10) the vast majority of the prelude changes desirable to support
>> will have to do with the numeric hierarchy
On Fri, Feb 16, 2001 at 05:14:14PM +1100, Fergus Henderson wrote:
> s/numeric hierarchy/class hierarchy/
I suppose I was trying to narrow it down as far as possible, but if
people really are touching every place in the class hierarchy, then
I can't do better than that.
Cheers,
Bill