Even if they don't actually :) On Fri, Aug 13, 2010 at 7:37 AM, Robby Findler <ro...@eecs.northwestern.edu> wrote: > And, on the other side of the coin, I'm sure Jay is willing to > entertain alternative proposals, esp. if they come with > implementations. > > Robby > > On Fri, Aug 13, 2010 at 8:20 AM, Jay McCarthy <jay.mccar...@gmail.com> wrote: >> Thanks for debugging me Noel. >> >> Since the API I added merely promises some sequence, there's nothing >> preventing us from having it always return a future lazy stream that >> can be viewed as a sequence if that ends up being faster. If someday >> we have such nice lazy streams, then I predict we'll certainly want >> similar functions and we'll have another request for making the >> sequence api more like the lazy stream api. >> >> Jay >> >> On Fri, Aug 13, 2010 at 3:55 AM, Noel Welsh <noelwe...@gmail.com> wrote: >>> On Fri, Aug 13, 2010 at 2:45 AM, Jay McCarthy <jay.mccar...@gmail.com> >>> wrote: >>>> I parse your comments like this: >>>> >>>> - We can't do these sequence functions fast. >>>> - When we didn't provide them, people complained that they were missing. >>>> - When we provide them slowly, people will complain that Racket is slow. >>>> - It is worse to be slow than featureless. >>> >>> I think this is incorrect. I read: >>> >>> - When we provide APIs we lock ourselves into them >>> - The proposed sequence API is slow and can't be sped up without >>> significant effort (cf worldwide shortage of Matthew-Flatt-hours) >>> - We shouldn't lock ourselves into a slow API without considering >>> alternatives (cf performance of stream/lazy list abstraction) >>> >>> N. >>> >> >> >> >> -- >> Jay McCarthy <j...@cs.byu.edu> >> Assistant Professor / Brigham Young University >> http://teammccarthy.org/jay >> >> "The glory of God is Intelligence" - D&C 93 >> _________________________________________________ >> For list-related administrative tasks: >> http://lists.racket-lang.org/listinfo/dev >> >
-- Jay McCarthy <j...@cs.byu.edu> Assistant Professor / Brigham Young University http://teammccarthy.org/jay "The glory of God is Intelligence" - D&C 93 _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
