Well first let me back up and provide a simple recipe for the first
issue -- `,enter` not behaving like `enter!` with respect to reloading
changed files. IIRC this started to happen circa 5.3.1.
First let's try `enter!`:
$ /Applications/Racket_v5.3.1/bin/racket
Welcome to Racket v5.3.1.
-> ,cd /tmp
; now in /tmp
-> ,sh
echo '#lang racket' > x.rkt
echo '"hi"' >> x.rkt
exit
(require racket/enter)
-> (enter! "x.rkt")
"hi"
"x.rkt"> (enter! "x.rkt") ;does nothing. OK fine.
"x.rkt"> ,sh
echo '"there"' >> x.rkt
exit
(enter! "x.rkt") ;re-loads changed file. Yay!
[re-loading /tmp/x.rkt]
"hi"
"there"
"x.rkt"> (exit)
Notice that after x.rkt is changed, `enter!` _does_ re-load and
re-evaluate the file and display "hi\nthere".
But next let's try using `,enter`:
$ /Applications/Racket_v5.3.1/bin/racket
Welcome to Racket v5.3.1.
-> ,cd /tmp
; now in /tmp
-> ,sh
echo '#lang racket' > x.rkt
echo '"hi"' >> x.rkt
exit
,enter x.rkt
"hi"
"x.rkt"> ,enter x.rkt ;does nothing. OK fine.
"x.rkt"> ,sh
echo '"there"' >> x.rkt
exit
,enter x.rkt ;still does nothing. Boo!
"x.rkt"> (exit)
Notice that after x.rkt is changed, `,enter` does _not_ re-load and
re-evaluate th fiel and display "hi\nthere". Why not? Shouldn't it?
That's one issue. At the time I noticed it was I in the middle of
something, stuck with `enter!`, and didn't worry about it.
Second issue is sometimes `enter!` doesn't reload, either. I've
noticed this more recently. Although I have a reliable recipe (the
#lang rackjure one above), I haven't yet boiled this down to the
simplest-possible recipe. Unless it's already obvious to you what's
going on with that, I'll keep working to come up with a simpler
recipe.
Thank you.
On Mon, Feb 11, 2013 at 2:07 AM, Eli Barzilay <e...@barzilay.org> wrote:
> 9 hours ago, Greg Hendershott wrote:
>> I'm inclined to add a new command to XREPL that takes that approach,
>> to experiment. I was spelunking in DrRacket source but I'm slow to
>> isolate that from what else is going on. It sounds like you
>> understand it; is there a code sample you could share?
>
> I'm not sure what exactly you're after, but you can get most of that
> using a ,switch command to create a new namespace, then using it with
> a "!" flag to reset it.
>
> --
> ((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay:
> http://barzilay.org/ Maze is Life!
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