[racket-dev] Fwd: Sandbox evaluation problem - files with comment boxes

Ah, I am still struggling with this sandbox problem! (previous message to
'users' below) I'm starting to feel like maybe there's a bug in 6.1.1, or
else something changed in recent versions that I'm missing. The following
screenshots show the entire contents of the BSL file that I'm trying to
load using make-module-evaluator, with gracket v6.1.1 failing the second
time you try to load the file (or another one) that contains a comment box,
while racket v6.1.1 and gracket 6.0 don't have this behavior:

http://cs.berry.edu/~nhamid/temp/foo.png
http://cs.berry.edu/~nhamid/temp/foo60.png

???

--- nadeem



---------- Forwarded message ----------
From: Nadeem Abdul Hamid <nadeem at acm.org>
Date: Sun, Jan 25, 2015 at 10:35 PM
Subject: Sandbox evaluation problem - files with comment boxes
To: users <users at racket-lang.org>



I'm trying to create a simple sandbox evaluator (to load in programs in
*SL). I have the following code:

#lang racket
(require racket/sandbox)
(define E
  (parameterize ([sandbox-path-permissions
                  '([write "/var/folders"]
                    [exists "/"]
                    [read "/"])]
                 )
    (make-module-evaluator (string->path "test-file.rkt"))))


This works fine as long as test-file.rkt does *not* contain a comment box.
If the file contains a comment box, then the following error occurs:

/Applications/Racket
v6.1.1/share/pkgs/snip-lib/racket/snip/private/load-one.rkt:21:2:
dynamic-require: unknown module
  module name: #<resolved-module-path:"/Applications/Racket
v6.1.1/share/pkgs/gui-lib/framework/main.rkt">



I thought maybe parameterizing sandbox-namespace-specs with 'framework
might do something:

(require racket/sandbox racket/gui)
(define E
  (parameterize ([sandbox-path-permissions
                  '([write "/var/folders"]
                    [exists "/"]
                    [read "/"])]
                 [sandbox-namespace-specs
                  (list make-gui-namespace 'framework)]
                 )
    (make-module-evaluator (string->path "lab01-insulin.rkt"))))

But it results in:
   namespace-attach-module: a different instance of the same module is
already in the destination namespace
  module name: "/Applications/Racket
v6.1.1/collects/racket/stxparam-exptime.rkt"


Any suggestions?

Thanks!

--- nadeem
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/dev/archive/attachments/20150126/04564eaa/attachment.html>