On Tue, Nov 30, 2010 at 05:56:08PM -0600, Eduardo Cavazos wrote: > Hi Matthias, > > On Wed, 2010-08-18 at 10:52 -0400, Matthias Felleisen wrote: > > > Eduardo is providing a macro that helps you abbreviate complex > > selector and mutator chains. The BENFIT you get is that instead > > of writing > > > > (posn-x (bird-posn (sky-bird (world-sky some-world)))) > > > > you can write -- in Racket -- > > > > some-world.sky.bird.posn.x > > > > and make Racket programs look as short as C program selectors > > or Java dots or Javascript dots etc. > > > > The PRICE you pay is that you annotate variables and fields > > with struct information. That is, you have to say somewhere that > > some-world is a variable that always stands for a world struct. > > And the sky field in world has to come with information that it > > always is a sky-struct. And so on.
This looks as if it might be a better match with Typed Scheme/Racket. -- hendrik _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
