At Wed, 05 Dec 2012 14:24:09 -0500, David Van Horn wrote: > I am trying to scribble some examples using a custom evaluator. if I > use the example from the documentation, things work: > > @(require racket/sandbox > scribble/eval) > @(define my-evaluator > (parameterize ([sandbox-output 'string] > [sandbox-error-output 'string]) > (make-evaluator 'typed/racket/base))) > @interaction[#:eval my-evaluator > > (: my-sqr (Real -> Real)) > (define (my-sqr x) > (* x x)) > (my-sqr 42)] > > But when I change the language from 'typed/racket/base to 'pcf/lang (a > collection that I've added with raco link). Then I get a sandbox error: > > file-exists?: `exists' access denied for > /Users/dvanhorn/Documents/git/racket/bin/racket > context...: > find-executable-path > > /Users/dvanhorn/Documents/git/racket/collects/setup/private/main-collects.rkt:19 > :4: > find-main-collects > > /Users/dvanhorn/Documents/git/racket/collects/racket/private/promise.rkt:104:10 > > /Users/dvanhorn/Documents/git/racket/collects/racket/private/more-scheme.rkt:263 > :2: > call-with-exception-handler > /Users/dvanhorn/Documents/git/racket/collects/racket/private > ... > > Am I doing something wrong, or is this a buggy interaction between the > sandbox and raco link?
The sandbox's default settings probably don't interact nicely with `raco link', and if not, we should improve that. Use `call-with-trusted-sandbox-configuration' while creating the evaluator to avoid the problem. That's probably the right thing to do, anyway. ____________________ Racket Users list: http://lists.racket-lang.org/users
