[racket] status of FrTime

From: Jay McCarthy (jay.mccarthy at gmail.com)
Date: Wed Jun 22 12:23:13 EDT 2011

FrTime doesn't have a very good automated test suite, so it hard to
instantly fix problems. Mostly we check that the demos run before
releases. One of my goals is to improve its state (in particular, the
documentation) and see about making the implementation faster.


2011/6/22 Marijn <hkBst at gentoo.org>:
> Hash: SHA1
> Hi list,
> I'm quite interested in the FrTime language, and decided to use my new
> knowledge of implementing graphical programs in Racket to try and bluff
> my way into a bit of FrTime hacking. Unfortunately it seems the
> windowing part of FrTime is a bit broken at the moment. For example:
> #lang frtime
> (require frtime/gui/fred)
> (define root (new ft-frame% (label "Summator")))
> (new (ft-message% (parent root) (label milliseconds)))
> (send root show #t)
> gives the following error when you try to run it:
> X expand: unbound identifier in module in: parent
> Other things which I tried, like ft-vertical-panel%, apparently haven't
> been defined yet. This surprised me a little as I would have guessed
> that the spreadsheet program spoken of in one of the publications about
> FrTime would surely need these. (Is the source code for this program
> available, btw?)
> Another thing I noticed is that after trying some of the FrTime demo
> programs on my system, DrRacket seems to be using quite a bit more
> memory and is constantly running the garbage collector, though
> apparently unsuccesfully as there is no change in the amount of memory
> indicated in the bottom right. Upon a fresh start it is at ~150MB, but
> after running aforementioned demos it had crept up to >400MB resulting
> in a noticeable slowdown of the demos.
> I'd really like to know what the status of FrTime is (if only to not
> spam the list with premature bug reports).
> Thanks,
> Marijn
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Jay McCarthy <jay at cs.byu.edu>
Assistant Professor / Brigham Young University

"The glory of God is Intelligence" - D&C 93

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