On 8/7/06, felix winkelmann <[EMAIL PROTECTED]> wrote:
On 8/3/06, Daishi Kato <[EMAIL PROTECTED]> wrote:
> Now, I can reproduce the problem.
>
> % cat dump.scm
> (use s11n)
> (define x (make-hash-table))
> (hash-table-set! x 'aaa (make-hash-table))
> (hash-table-set! x 'bbb (make-hash-table))
> (with-output-to-file "dump"
> (lambda ()
> (serialize x)))
> % cat undump.scm
> (use s11n)
> (define (deserialize-fallback id)
> (cond ((string=? id "f_3497library.scm") ; chicken-2.315
> equal?)
> ((string=? id "f_6914extras.scm") ; chicken-2.315
> hash)
> (else
> (error "deserialize-fallback unknown id" id))))
> (with-input-from-file "dump"
> (lambda ()
> (deserialize (current-input-port) deserialize-fallback)))
> % /usr/local/chicken-2.315/bin/csi -q -s dump.scm
> % /usr/local/chicken-2.41/bin/csi -q -s undump.scm
> Error: (for-each) argument is not a proper list: ((aaa .
> #<hash-table>) . #<procedure (hash x1094 . g10931095)>)
>
> Call history:
>
> <eval> (##sys#require (quote s11n))
> <eval> (with-input-from-file "dump" (lambda ()
> (deserialize (current-input-port) deserialize-fallback)))
> <eval> (deserialize (current-input-port)
deserialize-fallback)
> <eval> (current-input-port)
> <eval> [deserialize-fallback] (string=? id
"f_3497library.scm")
> <eval> [deserialize-fallback] (string=? id
"f_3497library.scm")
> <eval> [deserialize-fallback] (string=? id
> "f_6914extras.scm")<--
I can't say much about this problem. As I already said, the procedure-IDs
might be re-used, so this approach is definitely not safe.
If the procedure ID is really re-used, the fallback procedure is never
called, isn't it?
If I could not find any solution to this, my final resort would be
editting the binary dump file to change procedure IDs.
Daishi
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