[adding back the list again]. I'm not sure what is going on exactly, but it looks like it might be a bad interaction between racket/base and eopl. Here's a smaller pair of files that illustrates the problem:
green.rkt: (module green eopl) Another file (any file): #lang eopl (require racket/base) (require "green.rkt") Running the latter file produces the problem. While we wait for someone to fix/address the issue, Marco, I think that you can probably avoid the problem by not requiring racket/base. Or, if you do need something from there, using an only-in or requiring some other, smaller library should let you work around the problem. hth, Robby On Tue, Oct 18, 2011 at 9:53 AM, Marco Morazan <moraz...@gmail.com> wrote: > I've tried to reduce the rather large files I've been given. > > green.rkt: > (module green eopl > (provide dummy) > (provide numfuncts) > (provide get-dummy) > (provide mutate-dummy!) > > (define dummy 10) > (define (get-dummy) dummy) > (define numfuncts -1) > (define (mutate-dummy! x) (set! dummy x)) ) > > test-require.rkt: > #lang eopl > (require scheme/base) > (require "green.rkt") > > (define numfs numfuncts) > (define (crazy x) (* dummy x)) > > test-require produces the following error: > > #%module-begin: bad syntax in: (#%module-begin (#%require > scheme/base) (#%require "green.rkt") (define-values (numfs) numfuncts) > (define-values (crazy) (lambda (x) (#%app * dummy x)))) > > If I comment out the first require everything works fine as long as > functions in racket/base are not used. That is: > > test-require.rkt: > #lang eopl > (require scheme/base) > (require "green.rkt") > > (define numfs numfuncts) > (define (crazy x) (* dummy x)) > (define (f x) (build-vector 10 (lambda (i) (* i x)))) > > Throws the following error: > > #%module-begin: bad syntax in: (#%module-begin (#%require scheme/base) > (#%require "green.rkt") (define-values (numfs) numfuncts) > (define-values (crazy) (lambda (x) (#%app * dummy x))) (define-values > (f) (lambda (x) (#%app build-vector (quote 10) (lambda (i) (#%app * i > x)))))) > > Version info: > > Welcome to DrRacket, version 5.1.3 [3m]. > Language: eopl; memory limit: 128 MB. > > > > On Tue, Oct 18, 2011 at 10:41 AM, Robby Findler > <ro...@eecs.northwestern.edu> wrote: >> This sounds like a bug in #lang eopl (at least in the error message >> reporting), but this program is still not enough to actually reproduce >> the problem. For me, for example, this works fine: >> >> #lang eopl >> (require racket/base) >> (require racket/list) >> >> So it isn't just having two requires. >> >> Robby >> >> On Tue, Oct 18, 2011 at 9:37 AM, Marco Morazan <moraz...@gmail.com> wrote: >>> I see where there are some problems. >>> >>> First, I see they are attempting to mutate variables defined in a >>> required module. This, I believe, can be fixed by exporting mutating >>> functions from the required module. >>> >>> Second, they want to have multiple require statements like: >>> >>> #lang eopl >>> (require racket/base) >>> (require "green.rkt") >>> >>> <code> >>> >>> The above produces the following error: >>> >>> #%module-begin: bad syntax in: (#%module-begin (#%require >>> racket/base) (#%require "green.rkt") ... >>> >>> Commenting out the first require statement causes an expected error on >>> a function in racket/base: >>> >>> expand: unbound identifier in module in: build-vector >>> >>> Is this enough context to point me in the right direction? >>> >>> >>> >>> On Tue, Oct 18, 2011 at 9:23 AM, Robby Findler >>> <ro...@eecs.northwestern.edu> wrote: >>>> I think we'll probably need some more context to say what is going on. >>>> Can you post a complete program that has that symptom? >>>> >>>> Robby >>>> >>>> On Tue, Oct 18, 2011 at 8:16 AM, Marco Morazan <moraz...@gmail.com> wrote: >>>>> I'm at a loss with this error. Can anyone provide some insight? >>>>> >>>>> So, I have the following (in a file named green.rkt): >>>>> (module green ... >>>>> (provide expr) >>>>> (provide program) >>>>> ... >>>>> ;(provide num-functs) >>>>> >>>>> <a bunch of definitions including definitions for expr, program, >>>>> num-functs, and everything in the ...> ) >>>>> >>>>> In a different file I have: >>>>> >>>>> (require "green.rkt") >>>>> >>>>> If as above, I comment out (provide num-functs) I get the following error: >>>>> >>>>> expand: unbound identifier in module in: num-functs >>>>> >>>>> This makes sense since I have not provided num-functs. >>>>> >>>>> If I uncomment it I get the following error: >>>>> >>>>> #%module-begin: bad syntax in: (#%module-begin (#%require >>>>> scheme/base) (#%require "green.rkt") (define-syntaxes (prog) >>>>> (let-values (((cert) (#%app syntax-local-certifier (quote #t)))) .... >>>>> >>>>> There is no problem reported with any other of my provide statements >>>>> which resolved all other of my errors of type 1 above (i.e., expand). >>>>> >>>>> Any suggestions? >>>>> >>>>> >>>>> -- >>>>> >>>>> Cheers, >>>>> >>>>> Marco >>>>> _________________________________________________ >>>>> For list-related administrative tasks: >>>>> http://lists.racket-lang.org/listinfo/users >>>>> >>>> >>> >>> >>> >>> -- >>> >>> Cheers, >>> >>> Marco >>> >> > > > > -- > > Cheers, > > Marco > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
