[Chicken-users] Variable Capture in message-digest

[Andy Bennett]

Hi,

I've been using the message-digest egg and have happened upon an
unfortunate scenario.

Here is my minimal test case:

-----
(use message-digest sha2)

(define (string->blob string)
 (abort "no way"))

(define digest (initialize-message-digest (sha256-primitive)))

(assert (message-digest? digest))

(message-digest-update-object  digest "x")
(pp (finalize-message-digest digest 'blob))
-----



This aborts with "no way" during the call to message-digest-update-object.


message-digest is expecting to get string->blob from the library
(http://api.call-cc.org/doc/library/string-%3Eblob ) but I'm reusing
that name in my program for something else.

Even tho' I define my string->blob after I (use message-digest), it
seems to affect the binding in the message-digest code.


Is this expected behaviour?

I'm using CHICKEN 4.9.0rc1 and it happens in both interpreted and
complied code.





Regards,
@ndy

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