On Thu, Feb 16, 2006 at 09:06:24AM +0000, Ross Paterson wrote:
On Sat, Feb 04, 2006 at 03:11:10PM +0100, John Hughes wrote:
I noticed ticket #55--add parallel list comprehensions--which according to the ticket, will probably be adopted. I would argue against.
As there are many voices against and only John M speaking for these, it seems reasonable at least to move them from "probably yes" to "maybe".
I really like them, partially because it gives list comprehensions more power than plain old do notation.
My opinion may be coloured by the fact that I never use the things. However, I think it's a mistake to add rarely used features with a small payoff to the language. It just makes the language larger, harder to learn, and harder to read for all but the expert, without much corresponding benefit.
I agree, but then I feel the same way about pattern guards. I've used them only recently, and that was modifying code (GHC) that already had lots of Maybe-returning functions designed for use with pattern guards.
Oh golly, I can't live without pattern guards. they are the best thing since sliced bread. :) I don't know how people can write concise code without them. John -- John Meacham - ⑆repetae.net⑆john⑈