[plt-scheme] Re: input->code: ambiguous inputs

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Thu Mar 4 10:27:37 EST 2010

Student programs are saved as #lang modules that specify the beginner  
reader and language. So when you try load the students' program into  
the evaluator that is running Beginner, the evaluator doesn't  
understand you.

On Mar 4, 2010, at 9:16 AM, Todd O'Bryan wrote:

> On Thu, Mar 4, 2010 at 8:44 AM, Todd O'Bryan <toddobryan at gmail.com>  
> wrote:
>> I'm trying to evaluate code using the sandbox, and got the error
>> above. A search through the docs for "input->code" and "ambiguous
>> inputs" didn't return anything. Any idea what's going on?
>> Todd
> For more info, here's the complete code that's causing the problem:
> #lang scheme
> (require scheme/sandbox)
> (define my-eval
>  (parameterize ([sandbox-path-permissions
>                  '([read "/home/tobryan1/Desktop/MixedDataTypes- 
> Spring2009"]
>                    [write "/var/tmp"]
>                    [write "/home/tobryan1/.plt-scheme"])])
>    (make-evaluator '(special beginner)
>                  (string->path
> "/home/tobryan1/Desktop/MixedDataTypes-Spring2009/ 
> cshulak12&eholt12.ss")
>                  (string->path
> "/home/tobryan1/Desktop/MixedDataTypes-Spring2009/ob-tests.ss"))))
> The first file is a student's code, saved from inside DrScheme in
> Beginning Student. The second is just a list of check-expects that I
> wrote, also saved from DrScheme in Beginning Student.
> If I get rid of the second file, I get this error:
> module: name is not defined, not a parameter, and not a primitive name
> in: module
> Todd
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